Power plants inventions 09/07

20070220859 - Link mechanism and variable displacement compressor: A linkage mechanism (40, 40B, 40C) includes a pair of arms (41, 41) extending from a rotating member (21) toward a tilting member (24), a pair of arms (43, 43) extending from the tilting member (25) toward the rotating member (21), and a link (45) inserted between the pair of... Agent: Foley And Lardner LLP Suite 500

20070220861 - Method for opening a mobile cowl equipping a thrust reverser: The invention concerns a method for opening a mobile cowl (2) actuated by a motor (7) and equipping a turbojet thrust reverser, characterized in that it comprises, at the start of the opening phase, a bridling step (103) whereby the speed of the mobile cowl is maintained lower or equal... Agent: Oliff & Berridge, PLC

20070220864 - Control methods for low emission internal combustion system: Improved transient response times are obtained while maintaining low emissions with a low pressure EGR system through methods for quickly obtaining a desired oxygen concentration for charge-air to be used for combustion. Under a first method, fuel quantity in the main combustion event is controlled in the combustion process to... Agent: David Read US Epa, National Vehicle And

20070220866 - Exhaust gas control apparatus for internal combustion engine: A bypass passage is provided, which connects a portion upstream of a turbine of a supercharger in an exhaust passage to a portion close to a front end surface of exhaust gas purification in the exhaust passage, and through which at least part of exhaust gas discharged from an internal... Agent: Oliff & Berridge, PLC

20070220867 - Apparatus, system, and method for particulate filter regeneration: An apparatus, system, and method are disclosed for particulate filter regeneration. The apparatus includes a bypass exhaust channel configured to conduct exhaust gasses away from a main exhaust channel and reintroduce the exhaust gasses into the main exhaust channel upstream from a particulate filter, a burner, and a regeneration module... Agent: Kunzler & Mckenzie

20070220872 - Exhaust system for a drive unit formed by a transmission and an engine: An exhaust system for a drive unit formed by the transmission and the engine, having exhaust-gas-carrying pipes and at least one muffler and catalyst housing. A holding part can be fastened to the transmission and/or the engine and on whose supporting leg the exhaust system can be fastened or suspended.... Agent: Crowell & Moring LLP Intellectual Property Group

20070220871 - Method and apparatus for filtration of a two-stroke engine exhaust: A highly porous ceramic filter consisting essentially of bonded ceramic fibers forms a part of an exhaust filtration system for a gasoline two-stroke engine. The porosity of the substrate permits accumulation of particulate constituents of the exhaust stream without detracting from the engine performance due to backpressure. Embodiments of the... Agent: Geo2 Technologies

20070220873 - Process for the catalytic control of radial reaction: Hydrocarbon transformations through radical reaction are carried out in presence of: a carbon nano/meso precursor, an aluminium containing support, and a lanthanide catalyst deposited on said aluminium containing support.... Agent: Bryan D. Wright Suite 400

20070220875 - Stator unit for a torque converter: A stator unit for a torque converter includes a stator, a one-way clutch mounted radially inside the stator, and thrust bearings provided on both axial sides of the one-way clutch. The one-way clutch includes an outer ring having a peripheral wall and side walls extending radially inwardly from the respective... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070220878 - Universal control scheme for mobile hydraulic equipment and method for achieving the same: A universal control scheme for mobile hydraulic equipment has switches to activate and/or control any number of different tools or accessories that may be used to configure the equipment. Additionally, a single controller command may be reassigned from one set to another set of hydraulic line pairs. Furthermore, at different... Agent: The Webb Law Firm, P.C.

20070220879 - Pressure regulation in an automatic transmission: A pressure regulating system for a power transmission includes a pressure regulating valve to issue a pressure signal to a load and also a pressure signal to a pressure transducer for feedback to a transmission control module (TCM) which in turn suggests the output pressure of the regulator valve to... Agent: General Motors Corporation Legal Staff

20070220880 - Hydraulic vehicle stabilizer system with two-stage bi-rotational hydraulic pump system: A stabilizer system and method that can provide high speed, relatively low force extension and retraction of a stabilizer leg during a first portion of a stroke, and low speed, relatively high force extension and retraction during a second portion of the stroke. Accordingly, the stabilizer system and method takes... Agent: Renner, Otto, Boisselle & Sklar, LLP

20070220882 - 6-axis electromagnetically-actuated meso-scale nanopositioner: A MEMS actuator includes a coil stack in the form of microfabricated, electrically conductive first and second superposed layers. A magnet array is superposed in magnetic communication with the coil stack, with first and second coils being selectively, electrically actuatable to generate relative movement between the coil stack and the... Agent: Sampson & Associates, P.C.

20070220883 - Hybrid vehicle and control method thereof: In response to simultaneous ON settings of a heater switch signal HSW and an eco switch signal ESW, an eco priority map is set to an intermittent operation permission map (step S350). The heater switch signal HSW is output from a heater switch that is operated to warm up a... Agent: Kenyon & Kenyon LLP

20070220884 - Divided housing turbocharger for an engine: A turbocharger for an engine is provided. The turbocharger has a turbine and a housing enclosing the turbine. The housing has a first annular passageway and a second annular passageway. Both of the first and second annular passageways extend to the turbine. The turbocharger also has a valve mechanism disposed... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20070220885 - Egr energy recovery system: An exhaust gas recirculation (EGR) system for an engine in which a portion of the exhaust gas is recirculated from an exhaust port of the engine into an intake port of the engine. The EGR system includes an exhaust gas recirculation line connecting said exhaust port of said engine to... Agent: Honigman Miller Schwartz & Cohn LLP

20070220886 - Vehicle with a turbocharged diesel engine and exhaust recycling: Vehicle having a Diesel engine comprising an intake section by means of which fresh air is taken in by a compress of an exhaust gas turbocharger, is compressed and is supplied to the Diesel engine by way of a charge air cooler, and an exhaust system in which exhaust gas... Agent: Crowell & Moring LLP Intellectual Property Group

20070220887 - Geothermal hydrogen production facility and method: A system for geothermal hydrogen production comprising feed water, an input pipe extending into the earth to a sufficient depth to acquire geothermal heat, the geothermal heat capable of raising the temperature of the feed water to change the feed water from a mostly liquid state to a mostly gaseous... Agent: Patrick W. Rasche Armstrong Teasdale LLP

20070220889 - Electric power plant with thermal storage medium: A power plant uses an energy source (1) to produce electricity in a first generator. The electricity from the first generator provides heat to a solid heat storage medium (2). The solid heat storage medium (2) is a heat exchanger and water is pumped through the solid heat storage medium... Agent: Daryl W Schnurr Miller Thomson LLP

20070220891 - Augmentor pilot nozzle: A gas turbine engine augmentor nozzle has an inlet for connection to an augmentor fuel conduit and an outlet for expelling a spray of fuel. A passageway between the inlet and outlet is at least partially bounded by outlet end surface portions diverging from each other. The nozzle may be... Agent: Bachman & Lapointe, P.C. (p&w)

20070220892 - Structural metering plate: A turbine engine trailing edge box utilizes a metering plate for creating a pressure differential across the trailing edge box and to support the trailing edge box. The metering plate creates a pressure drop from the front to the rear of the trailing edge box resulting in a film of... Agent: Carlson, Gaskey & Olds/pratt & Whitney

20070220893 - Augmentor radial fuel spray bar with counterswirling heat shield: A gas turbine engine augmentor radial fuel spray bar has a counterswirling spray bar heat shield. Two embodiments of the heat shield include one with a cambered airfoil cross-section and another with a twisted airfoil cross-section and may have varying or constant degree of camber or twist, respectively, along a... Agent: Steven J. Rosen Patent Attorney

20070220895 - Methods and apparatus for housing gas turbine engines: A method for housing a gas turbine engine including an inlet portion, an engine portion, and an exhaust portion. The method includes containing at least a portion of the engine portion of the gas turbine engine within a first module, containing at least a portion of one of the inlet... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20070220896 - Systems and methods of reducing nox emissions in gas turbine systems and internal combustion engines: A gas turbine systems of reducing NOx emissions and enhancing operability comprises a compressor; a combustor disposed downstream of and in fluid communication with the compressor; a turbine assembly disposed down stream of and in fluid communication with the combustor; an oxygen-enriched gas source disposed in selective fluid communication with... Agent: General Electric Company Global Research

20070220898 - Secondary fuel nozzle with improved fuel pegs and fuel dispersion method: An improved fuel peg for a secondary fuel nozzle is provided that includes at least one slot, thereby to better disperse fuel around the secondary fuel nozzle body, thus providing a more uniform fuel air mixture and more complete combustion.... Agent: Nixon & Vanderhye P.C.

20070220900 - Auxiliary gas turbine engine assembly, aircraft component and controller: A non-aircraft-propelling auxiliary gas turbine engine assembly includes an auxiliary gas turbine engine and a mixing damper. The auxiliary engine and the mixing damper are installable in an aircraft having at least one aircraft-propelling main gas turbine engine. The auxiliary engine includes a compressor having a compressor inlet. The mixing... Agent: General Electric Company

20070214768 - Filter for an air bag gas generator: The filter for an air bag gas generator comprises a first layer formed from helically wound wire rods having a cross-sectional area of 0.03 to 0.8 mm2, in such a way that the pitch angle of wire rods vertically superposed in the radial direction is symmetrical, and a second layer... Agent: Birch Stewart Kolasch & Birch

20070214769 - Fuel supply control method applied to exhaust gas control apparatus for internal combustion engine and exhaust gas control apparatus to which the method is applied: In an exhaust gas control apparatus for an internal combustion engine (1) of the invention, including an exhaust gas control catalyst (8) which purifies exhaust gas released from the internal combustion engine (1), and a fuel supply valve (10) which supplies fuel to a portion upstream of the exhaust gas... Agent: Oliff & Berridge, PLC

20070214770 - Apparatus system and method for measuring a normalized air-to-fuel ratio: An apparatus, system, and method are disclosed for measuring a normalized air-to-fuel ratio. A normalized air-to-fuel ratio is measured by providing an engine control module, providing a first wide-band oxygen sensor in fluid communication with an exhaust stream, adjusting the oxygen pumping current to achieve a stoichiometric balance, detecting the... Agent: Kunzler & Mckenzie

20070214771 - Exhaust-gas recirculation device and method for operating an exhaust-gas recirculation device: An exhaust-gas recirculation device for an internal combustion engine, in particular for a diesel engine of a passenger car, includes an air-supply line connected to an air inlet of the internal combustion engine and includes an exhaust-gas line connected to an exhaust-gas outlet of the internal combustion engine. A turbine,... Agent: Manfred Beck, P.A.

20070214772 - Increasing exhaust temperature for aftertreatment operation: One embodiment of the present invention includes an internal combustion engine system designed to increase exhaust temperature when operating with a low mechanical load—such as idle operation. This increased exhaust temperature is provided to operate aftertreatment equipment. Exhaust temperature is raised by operating a portion of the engine pistons in... Agent: Krieg Devault LLP

20070214773 - System and method for desulfating a nox trap: In an apparatus comprising an internal combustion engine and a NOx trap for treating NOx emissions from the engine, a method of controlling the engine is disclosed, wherein the method comprises initiating a desulfation process in the NOx trap; measuring a delay between initiating the desulfation process and detecting a... Agent: Alleman Hall Mccoy Russell & Tuttle, LLP

20070214775 - Diagnostic apparatus for an exhaust gas purification system of an internal combustion engine, an exhaust gas purification system and a diagnostic method thereof: An apparatus for an exhaust gas system includes a main exhaust passage, a main catalytic converter disposed in the main exhaust passage, a bypass exhaust passage, a bypass catalytic converter disposed in the bypass exhaust passage, and a valve configured to open or close a section of the main exhaust... Agent: Drinker Biddle & Reath (dc)

20070214778 - Exhaust gas purifier: A catalytic regenerative particulate filter 6 is incorporated in an exhaust pipe 4 through which exhaust gas 3 flows. Provided are control and fuel injection devices 12 and 13 for forcibly burning off particulates captured by the particulate filter to regenerate the particulate filter 6 as well as a regeneration... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070214777 - Methods of controlling reductant addition: An exhaust system for a vehicular lean-burn internal combustion engine includes a NOx reduction catalyst, a source reductant, means (20) for contacting the catalyst with the reductant, means for sensing the temperature of the exhaust gas and/or the catalyst bed and means, when in use, for controlling reductant addition. The... Agent: Ratnerprestia

20070214779 - Catalytic converter unit and apparatus: A catalytic converter unit includes walls defining a treatment zone, first and second transfer zones and at least one through-flow zone, which zones are adjacent each other. The walls include a partition wall that divides the treatment zone into first and second segments. The first transfer zone is plugged upstream... Agent: Smith-hill And Bedell, P.C.

20070214780 - Submersible power plant: A submersible power plant 10 comprises a submersible enclosure 12 having at least one intake valve 16 for admitting water at high pressure from the surrounding sea into and air space in the enclosure. An air shaft from the air space 96 is in communication with the atmosphere for maintaining... Agent: Beeson Skinner Beverly LLP

20070214781 - Device for continuously supplying compressed air from a portable container to a pneumatic tool by greatly reducing pressure of compressed air and then precisely adjusting same: A two stage pressure regulating device is disclosed. The device is adapted to supply compressed air from a portable container having a pressure of about 150 kg/cm2 to a pneumatic tool by first greatly reducing pressure of compressed air in the container to about 13 kg/cm2 through a pressure-reducing unit... Agent: Sam Chen

20070214785 - Turbo charger unit with bearings for a rotor shaft: A turbocharger unit has a shaft mounting for a rotor shaft. The shaft supports at one end a turbine wheel and at its other end a compressor wheel. The shaft is supported in a bearing housing by two axially spaced bearing elements, one of which forms an axial support via... Agent: Wrb-ip LLP

20070214786 - Internal combustion engine and method of operating the engine: In an internal combustion engine with a crankshaft and an exhaust gas duct including an exhaust gas power turbine which is coupled to the crankshaft via a variable transmission, a control unit is provided for controlling the transmission ratio of the variable transmission such that the speed of the turbine... Agent: Klaus J. Bach

20070214787 - Control for variable geometry compressor: An exemplary controller for a variable geometry compressor includes one or more inputs for receiving engine operating information and for receiving a signal representative of geometry of a variable geometry compressor and control logic to call for actuation of an actuator based at least in part on the engine operating... Agent: Honeywell Turbo Technologies

20070214788 - Surface treatment for variable geometry turbine: An exemplary vane fronting surface for a variable geometry turbine includes a white layer that comprises nitrides. Such a layer may be formed using gas nitriding. As described, trials demonstrate that such nitriding reduces friction between a vane fronting surface and vanes of a variable geometry turbine. Consequently, nitriding can... Agent: Honeywell Turbo Technologies

20070214790 - Removable diffusion stage for gas turbine engine fuel nozzle assemblages: A gas turbine engine fuel nozzle assemblage (10) comprises a nozzle outer body (25) comprising a premixing section (23) and an interiorly disposed first fuel passageway (22) to supply fuel to the premixing section (23), and more interiorly a central channel (33) comprising an inlet (30) from an air supply,... Agent: Siemens Corporation Intellectual Property Department

20070214791 - Combustor dome assembly including retaining ring: A retaining ring is provided for use in conjunction with a carburetor assembly having a flow passage therethrough for conducting a fuel-air mixture into a combustion chamber, the carburetor assembly comprising an air flow modifier and a fuel injector receiving element adjacent thereto. The retaining ring comprises a collar configured... Agent: Honeywell International Inc.

20070214792 - Axial diffusor for a turbine engine: A turbine engine having a plenum for passing fluids from an outlet of a compressor to an inlet of a combustor that may increase the efficiency of the turbine engine. The turbine engine may include a combustor, a compressor positioned upstream of the combustor, a transition channel extending from the... Agent: Siemens Corporation Intellectual Property Department

20070214793 - Structural track support of spraybars/tubing: A turbine engine trailing edge box for an afterburner has corrugations formed to guide and support a spraybar. The trailing edge box is formed of sheet metal to create corrugations in the walls. The spraybar is supported and guided by the corrugations. The corrugations are shaped and sized to hold... Agent: Carlson, Gaskey & Olds/pratt & Whitney

20070214794 - Supercharged subsonic rotary ramjet turbine with vibration free piston air compressor: A machine for producing mechanical rotation power consists of a one or more rotors with exhaust nozzles spaced on the outer edge spinning faster than the combustor. The system includes a vibration free piston air compressor or other air compressor to pressurize the intake air. Each of the burners include... Agent: Erik Tweeton

20070214797 - Combustion dynamics monitoring: A method for monitoring combustion dynamics of a can annular combustor (12) of a gas turbine engine includes monitoring respective dynamic operating conditions of cans (16) of the can annular combustor with respective dynamic operating condition sensors (20) associated with each of the cans. The method also includes grouping the... Agent: Siemens Corporation Intellectual Property Department

20070214795 - Continuous real time egt margin control: A method and system for maintaining a limiting gas temperature in a gas turbine engine working fluid flowpath by monitoring the gas temperature and adjusting one or more parameters when the gas temperature exceeds a predetermined or a calculated temperature limit during engine operation. The parameters include one or more... Agent: Steven J. Rosen Patent Attorney

20070214796 - Monitoring health of a combustion dynamics sensing system: A method and system (14) for monitoring a health of a combustion dynamics sensing system (10) includes monitoring respective dynamic conditions of at least two combustor cans (16) of a can annular combustor (12) of a gas turbine engine with respective dynamic condition sensors (20) associated with each of the... Agent: Siemens Corporation Intellectual Property Department

20070214798 - Process for producing electrical power: A process for producing electrical power including the steps of: a) combusting a stoichiometric amount of a reactant in air in the presence of atomized water to obtain a gaseous mixture having a terminal temperature less than a maximum operating temperature of a gas turbine, b) feeding the gaseous mixture... Agent: Dinsmore & Shohl LLP

20070209349 - Method and device for introducing a reagent into an exhaust gas channel of an internal combustion engine: A procedure to introduce a reagent substance into the exhaust duct of an internal combustion engine and a device to implement the procedure are proposed. At least one catalytic converter is disposed in the exhaust duct of the internal combustion engine. In front of the aforementioned catalytic converter(s), a reagent... Agent: Merchant & Gould PC

20070209351 - Desulfation control strategy: The inventors' concept relates to controlling a power generation system having an exhaust aftertreatment system comprising a fuel reformer and an LNT in series. Over the course of a desulfation, a fuel injection upstream of the fuel reformer is pulsed to create alternating lean and rich phases and control the... Agent: Paul V. Keller, LLC

20070209353 - D-shaped tube for header: Disclosed is a water cooled exhaust assembly for use in association with an internal combustion engine in a marine environment. Inner and outer nested tubes are affixed to a mounting flange to form, in conjunction with an access port in the mounting flange, a cooling water flow channel to provide... Agent: Dority & Manning, P.A.

20070209355 - Pump unit and hydrostatic transmission: There is provided a pump unit configured to be capable of transmitting a rotational power from a driving power source which is operatively connected thereto to an actuator through a pair of hydraulic fluid lines. The pump unit includes: an input shaft; a hydraulic pump main body; a PTO shaft;... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070209356 - Method for providing priority to steering wheel on machines with steering wheel and joystick: A vehicle is disclosed having a hydraulic system. The hydraulic system includes first and second user inputs. The hydraulic system in configured to give priority to the first input over the second input.... Agent: Baker & Daniels LLP

20070209357 - Reservoir built-in type actuator: A stand pipe is disposed so as to be fitted with the inner periphery surface of a piston rod with a hollow structure and a reservoir is incorporated into the inside of the stand pipe, whereby it becomes possible to reduce the size of an EHA device. Besides, since the... Agent: Marshall, Gerstein & Borun LLP

20070209360 - Hydraulic disc brake lever assembly: A brake lever assembly for actuating a hydraulic disc brake system is shown and described. The brake lever assembly provides two-stage braking by operatively connecting a lever to first and second pistons contained in a master cylinder. The first and second pistons are operatively connected to one another such that... Agent: Jeffer, Mangels, Butler & Marmaro, LLP

20070209362 - Method for controlling an internal combustion engine using model based vgt/egr control: A method for controlling an internal combustion engine using model based control, the engine including a variable geometry turbocharger (VGT) driven in response to a VGT command signal and/or an exhaust gas recirculation (EGR) valve driven in response to an EGR valve command signal to recirculate exhaust to an engine... Agent: Brooks Kushman P.C.

20070209361 - Multiple nozzle rings and a valve for a turbocharger: A turbocharger turbine housing with at least two volutes utilizing multiple nozzle rings to optimize the turbocharger's proficiency per application, and a valve to control the exhaust flow to selected volutes in the turbine housing.... Agent: Melvin Hess Pedersen

20070209363 - Turbocharger with wastegate: This invention relates to an actuator assembly for a turbocharger pressure control valve assembly and a method of assembling a pressure control assembly of a turbocharger. The assembly comprises an actuator coupled to an actuator rod which in use is coupled to the valve assembly to control the position thereof.... Agent: Krieg Devault LLP

20070209364 - System and method to generate environment-friendly power by tapping solar energy: The system and method for an apparatus to generate electricity by utilization of solar energy. This system uses a solar lens powered steam turbine and supporting devices for tapping the energy of sun. An insulated container having boiling water inside and convex-lenses mounted on the cover emits steam through a... Agent: Dr. Abhinav Aggarwal

20070209365 - Method and apparatus for storing heat energy: A method of and an apparatus for storing heat energy in a body of graphite at an elevated temperature are disclosed. The method comprises heating an inner region of a body of graphite when it is required to store the heat energy and recovering the heat by way of a... Agent: Fitch, Even, Tabin & Flannery

20070209367 - Fluid catalytic cracking steam pressure letdown power recovery system and process: A system and method are provided for recovering power from hot flue gas of a catalyst regenerator in an FCC unit and an integrated fluid catalytic cracking steam pressure letdown. The system includes a flue gas power recovery system including an expander and a turbine for generating power by letting... Agent: Honeywell Intellectual Property Inc Patent Services

20070209368 - High pressure ratio aft fan: A fan assembly for a gas turbine engine includes a turbine rotor adapted to be disposed aft of a core of the gas turbine engine; a row of turbine blades carried by the rotor, each turbine blade extending from the rotor to a tip, the turbine blades adapted to extract... Agent: Adams Evans P.A.

20070204593 - Propulsion thrust control system and method: A propulsion thrust control system and method for controlling thrust in a rocket motor includes configuring valves of an energized rocket motor to an initial total valve area according to a total thrust command. The total thrust command is converted into a commanded propellant mass flow discharge rate. A varying... Agent: Traskbritt, P.C./ Alliant Tech Systems

20070204595 - Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine: An exhaust gas purification apparatus for use in an internal combustion engine comprises an exhaust gas duct connected to the engine through which exhaust gas containing NOx gas passes, and a catalyst disposed in the exhaust gas duct such that it contacts the exhaust gas. The catalyst chemically adsorbs NOx... Agent: Crowell & Moring LLP Intellectual Property Group

20070204596 - Control device for internal combustion engine: Provided is a control device for an internal combustion engine, which can enable stable and fine control of an average air/fuel ratio of an exhaust gas on the upstream side of a catalyst. The control device for an internal combustion engine includes: a catalytic converter; an upstream O2 sensor to... Agent: Sughrue Mion, PLLC

20070204597 - Exhaust sensor mounting structure: The present invention provides an exhaust sensor mounting structure for mounting an exhaust sensor having a sensing element covered by an element cover formed with an exhaust inlet hole to an exhaust pipe of an internal combustion engine. The exhaust pipe includes a tapered section connected to a downstream end... Agent: Nixon & Vanderhye, PC

20070204598 - Procedure and device to regenerate an exhaust gas purification system: The invention concerns a procedure to control a regeneration of a particle filter in an exhaust gas purification system of a combustion engine, at which combustion air inlet is supplied via a combustion velocity supply duct with a butterfly valve and at which exhaust is recycled in an exhaust duct... Agent: Merchant & Gould PC

20070204602 - Exhaust gas control apparatus and exhaust gas control method for internal combustion engine: In an exhaust gas control apparatus for an internal combustion engine, including a supercharger which is provided in an exhaust passage at a position up-stream of a catalyst having an oxidizing ability; turbine rotation energy amount adjusting means (106) for adjusting an amount of energy of exhaust gas, which is... Agent: Oliff & Berridge, PLC

20070204603 - Actuator control system and method: Actuator control system and method comprising an electric motor driving a hydraulic pump in fluid delivery communication with a source of hydraulic fluid; a variable speed controller operatively coupled to the motor for driving the pump at variable speeds; an external hydraulic actuator in fluid delivery communication with the pump... Agent: Audrey A. Millemann Weintraub Genshlea Chediak

20070204605 - Control system for traveling working vehicle: A torque control regulator 26 controls the absorption torque of a hydraulic pump 22 to ensure that it does not exceed a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070204604 - Hydraulic drive device for work machine: A primary object is to provide a hydraulic drive device for a work machine that is capable of optimum control of pump absorption horsepower according to a change of working condition, thereby reducing fuel consumption, and a secondary object is to provide a hydraulic drive device for a work machine... Agent: Frishauf, Holtz, Goodman & Chick, PC

20070204608 - Hydraulic drive, in particular for two-cylinder thick matter pumps: The invention relates to a hydraulic drive, especially for two-cylinder thick matter pumps. Said hydraulic drive comprises at least one main pump (10) embodied as a hydraulic variable displacement pump, and two hydraulically actuatable drive cylinders (20,22) that are each connected to a connection line (16,18) of the main pump... Agent: Akerman Senterfitt

20070204609 - Hyrdaulic transmission: A hydraulic transmission comprises a hydraulic pump and a hydraulic motor, which are mounted onto a center section to be fluidly connected to each other through a closed fluid circuit formed in the center section. A neutral valve is connected to the closed fluid circuit. The neutral valve is fitted... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070204612 - Shape memory alloy latching valve: A shape memory activated fluid control pinch valve is disclosed. The valve may be normally open or normally closed. In various embodiments of the valve, the valve may be a latching pinch valve and may operate with magnetic assistance.... Agent: Burton Sage

20070204614 - Method for cooling an internal combustion engine having exhaust gas recirculation and charge air cooling: A system for cooling charge air from a turbo- or supercharger and exhaust gas recirculated from an exhaust gas recirculation valve in an internal combustion engine. The system includes a rdiator and parallel charge air and exhaust gas heat exchanger units, the charge air heat exchanger unit having aluminum tubes... Agent: Law Office Of Delio & Peterson, LLC.

20070204618 - Method and control unit for setting a turbine flow cross-section: A turbine flow cross-section of a turbocharger of an internal combustion engine, is set such that a lower limit (TSQ_dyn_min) of a range of settable values of the turbine flow cross-section is determined as a function of an operating parameter of the internal combustion engine in non-stationary operating states. A... Agent: Crowell & Moring LLP Intellectual Property Group

20070204616 - Swing valve for a turbocharger with stacked valve members, and two-stage turbocharger system incorporating same: A swing valve has a pivoting primary valve member for closing a primary valve passage defined in a valve housing, and a pivoting secondary valve member for closing a secondary valve passage defined through the primary valve member. Partial opening of the valve is achieved by pivoting the secondary valve... Agent: Honeywell Turbo Technologies

20070204615 - Two-shaft turbocharger: A turbocharger, having an axial compressor wheel and an axial turbine wheel mounted on a first shaft supported by a housing, and a radial compressor wheel and a radial turbine wheel mounted on a second shaft, the second shaft concentrically extending around the first shaft and being supported by the... Agent: Honeywell Turbo Technologies

20070204619 - Arrangement for recirculation of exhaust gases of a super-charged internal combustion engine: An arrangement for recirculation of exhaust gases in a supercharged combustion engine. The arrangement includes an exhaust line operable to lead exhaust gases out from the combustion engine, an inlet line operable to lead air at above atmospheric pressure to the combustion engine, a return line which comprises a connection... Agent: Ostrolenk Faber Gerb & Soffen

20070204620 - Zero emissions closed rankine cycle power system: A fuel combustion power generation system is provided operating as a closed loop Rankine cycle and with zero atmospheric emissions. The fuel is combusted with oxygen in a combustor to generate high temperature products of combustion. The products of combustion are routed to a first side of a heat exchanger.... Agent: Bradley P. Heisler Heisler & Associates

20070204621 - Fuel conveying member with side-brazed sealing members: A gas turbine engine fuel nozzle system having a fuel conveying member with a channel formed in a surface thereof defined between a pair of facing spaced apart walls, and at least one sealing member disposed within the channel and sealingly fastened to the spaced apart walls.... Agent: Ogilvy Renault LLP (pwc)

20070204623 - High density combined cycle power plant process: A process for increasing the specific output of a combined cycle power plant and providing flexibility in the power plant rating, both without a commensurate increase in the plant heat rate, is disclosed. The present invention demonstrates that the process of upgrading thermal efficiencies of combined cycles can often be... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070204622 - Internal fuel manifold with turned channel having a variable cross-sectional area: A method of manufacturing an internal manifold of a gas turbine engine including machining an annular channel in a ring by a turning process, and varying a position of a tool bit relative to the surface of the ring as a function of a relative circumferential location of the tool... Agent: Ogilvy Renault LLP (pwc)

20070204624 - Fuel injector for a turbine engine: To meet emissions standards, many gas turbine engines use some form of lean, pre-mixed combustion system. The lean nature of the fuel may lead to combustion oscillations or other instabilities. A fuel injector having an inner and outer cylinder receives pilot fuel and a portion of pre-mixed fuel-air into an... Agent: Caterpillar Inc. Intellectual Property Dept.

20070204625 - Methods and systems of variable extraction for compressor protection: A method of protecting a turbine compressor of a gas turbine engine that is part of an integrated gasification combined-cycle power generation system that includes an air separation unit that may include the steps of: (1) extracting an amount of compressed air that is compressed by the turbine compressor; (2)... Agent: Sutherland Asbill & Brennan LLP