Pumps inventions 01/06

20060018763 - Hermetic compressor: A hermetic compressor includes a housing accommodating a motor and a compressing mechanism driven by the motor, refrigerating machine oil, which is pooled in the housing, for lubricating the compressing mechanism, refrigerant gas sealed into the housing and to be refrigerant forming a refrigerating cycle, and an oil surface sensor...

20060018764 - System and method to reduce acoustic noise in screw compressors: A system is provided for attenuating tonal acoustic noise associated with a single positive displacement compressor, or multiple positive displacement compressors proximately located from each other. A controller selectably controls the rotational speed and the frequency of operation of each of the compressors. The controller controls the rotational speed of...

20060018765 - Arrangement and a method for controlling a work vehicle: Method and arrangement for controlling a work vehicle that includes a hydraulic system (22) having at least one pump (18,180) and at least one actuator (4,5,8,9,10) operatively driven by hydraulic fluid delivered from the pump and at least a first pump (18) is a variable displacement pump. The system (22)...

20060018766 - Tire inflation system with pressure limiter: A tire inflation system includes a hose that connects to a tire via a valve stem. A control valve is in fluid communication with the hose and senses when pressure falls below a predetermined minimum value. When this occurs, the control valve automatically opens to re-supply air to the tire...

20060018767 - Transmission pump and filter: The filter housing has a filter outlet portion with a central filter outlet passage. The outlet portion includes a terminal end portion defining a filter nozzle. The filter nozzle forms a nozzle passage between the filter nozzle and the pump housing. The nozzle passage communicates with an annular recess formed...

20060018768 - Oil pump: An oil pump is provided which includes a cam ring made of a material having a first line expansion coefficient, a pump element rotatably disposed in the cam ring and smaller in an axial length than the cam ring, a first housing member disposed on one of axially opposite sides...

20060018769 - Compressor with capacity control: Compressor containing a pressure regulating system (8) comprising an inlet valve (9); a piston (23) in a cylinder (24) connected thereto; a bridge (14) of this inlet valve (9) with a non-return valve (16) in it, characterized in that the piston (32) is a double-acting piston; the cylinder (24) on...

20060018770 - Valve: A valve includes a housing having an inlet, an outlet and a ram receiving chamber. A ram has a first end and a second end and is slidably supported in the ram receiving chamber. The ram has a central pin on the second end of the ram. An actuating element...

20060018771 - Reciprocating compressor: A reciprocating compressor includes: a cylinder installed inside a casing and having a space therein; a piston disposed inside the cylinder; an inner stator fixed at an outer circumference of the cylinder; a magnet fixed at an outer circumference of the inner stator; and an outer stator disposed to maintain...

20060018774 - Annular support for rolling bearings: A support ring (1) for rolling bearings (11), especially for rolling bearings applied to rotors with very high rotation speed, such as rotors of rotary vacuum pumps, the ring comprising a pair of concentric cylindrical shells (3, 5) connected together by a plurality of oblique radial plates (9), at least...

20060018775 - Liquid circulation system and liquid cooling system therewith: A pump equipped with an impeller having a plurality of vanes is installed through a packing at an opening section formed on a wall surface of one of components in a liquid circulation passage, such as a radiator so that the impeller of the pump section may be disposed herein....

20060018772 - Rotary vacuum pump, structure and method for the balancing thereof: A rotary vacuum pump (101; 201) comprising displacement sensors (121A-121F; 221A-221F), variously coupled to the pump basement (103; 203) and arranged close to the pump rotor (113; 213) and/or to the rotating shaft (105; 205) thereof, the sensors being turned towards it (them) and being perpendicular thereto, in order to...

20060018773 - Air-cooled dry vacuum pump: According to the present invention, an air cooling dry vacuum pump has an excellent heat exchangeability and is capable of discharging clean exhaust gases, allowing an installation space to be reduced due to a small and compact size, and reduced in weight, noise, manufacturing cost, and equipment cost. The vacuum...

20060018776 - Piston pump: A pneumatic groundwater retrieving piston pump comprising generally of a piston and a foot valve is disclosed. A pneumatic driver slides the piston assembly up and down inside the foot valve assembly, which is connected to the driver by means of a stationary length of pipe. The drive shaft of...

20060018777 - Fluoroplastic composite elastomer: An improved fluoroplastic lined elastomeric tube that can maintain a stable flow rate while pumping aggressive chemicals in a peristaltic pump for an extended period of time and is fabricated in sizes ranging from 0.5 mm to 100 mm in inside diameter. The inner fluoroplastic liner comprises a composite of...

20060018778 - Hermetic compressor: A hermetic compressor comprising a discharge muffler. The discharge muffler includes a dented muffler body defined in a cylinder block and a muffler cover to cover the muffler body. The muffler body has a partition to divide the interior of the discharge muffler into a pair of first and second...

20060013696 - Static pressure sliding block: A static pressure sliding block which can exhibit a stable function for a long time while flow control member 23 is pressed onto recess surface 21b of static pressure receiving surface 21a for fixing it onto main body 21 formed of a brittle material by employing elastic deformation of connecting...

20060013697 - Hermetic compressor: A hermetic compressor includes a housing which accommodates a motor and a compressing mechanism, an oil surface sensor mounted to a side wall of the housing, and refrigerating machine oil. The oil surface sensor is integrally formed of a detector for detecting a position of the oil surface of the...

20060013698 - Locomotive air compressor system with enhanced protection against leakage causative of backflow of pressurized air from a reservoir: A compressor system, method and kit are provided for supplying pressurized air to a main storage reservoir of a locomotive. The compressor system includes a high-pressure cylinder having at least one outlet valve having a first set of sealing characteristics. The compressor system further includes a piping assembly connected to...

20060013699 - Hydraulic pump: A hydraulic pump for delivering water from a low level water supply zone to a high level water supply zone includes a power equipment to drive and rotate a slant board which drives a piston moving reciprocally in a housing chamber of a cylinder. The housing chamber has a suction...

20060013700 - Long piston hydraulic machines: Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels form a single, continuous lubricating passageway entirely within the cylinder block and not connected...

20060013702 - Conveyor device: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake, into a pressure fluid reservoir or into a pressure fluid accumulator, with a pressure fluid inlet and a pressure fluid outlet as well as with the following features: a piston is...

20060013701 - High-pressure fuel pump with a ball valve in the low-pressure inlet: A high-pressure a radial piston fuel pump in which the intake valves are embodied as ball valves, which has an advantageous effect on the efficiency of the high-pressure fuel pump. Moreover, the production and assembly of the high-pressure fuel pump of the invention are simplified by the use of ball...

20060013703 - Multi-channel pump and its control method: A multi-channel pump includes a pump chamber, an inflow passage connected to the pump chamber, two or more outflow passages connected to the pump chamber, outflow side active valves provided so as to correspond to the outflow passages, and a movable body reciprocated to change a volumetric capacity of the...

20060013704 - Liquid aeration delivery apparatus: The invention is to prevent a nozzle located at a position immediately preceding a mixing chamber from becoming closed off with crystallized solute contained in a liquid which has become deposited and to prevent air supplied into the mixing chamber from flowing backward to a metering pump in a liquid...

20060013705 - Pump system and pump unit: There is provided there is provided a pump system having a base unit and a pump unit. The base unit includes an input part operatively connected to a driving source and a plurality of output parts to which power is transmitted from the input part. The base unit is capable...

20060013706 - Compressor: A compressor which is inexpensive and highly reliable and capable of efficiently and securely drawing up oil in a stable manner even at the time of low-revolution driving is provided. Also, a compressor which is highly reliable and capable of maintaining the structure of a viscous pump in a stable...

20060013707 - Centrifugal pump: A hydraulic turbocharger having an outer housing having a first section, a turbine end section and a pump end section. The pump end and turbine end sections are removably secured to the first section. A first cavity being formed between the first section and the turbine end section. A second...

20060013708 - Drive shaft for compressor: A compressor assembly including a motor having a stator and a rotor, and a drive shaft having an elongate central portion and first and second end portions located on opposite ends of the central portion. The shaft defines a rotational axis and extends through the rotor with the central portion...

20060013709 - Battery-powered spray wand: A system, apparatus and method are provided for spraying liquid contained in a reservoir remote from said apparatus. The spray apparatus includes a housing in which a pump is positioned. The pump has an inlet and an outlet. An electric motor positioned within the housing drives the pump when a...

20060013710 - Diaphragm pump for medical applications: An implantable diaphragm pump for use in medical applications comprising a housing having a pump cap, a valve plate, a diaphragm, and a base plate, wherein the pump cap and the valve plate are separated by the diaphragm, and the valve plate and lower surface of the diaphragm serve to...

20060013711 - Hermetic compresssor: Outer circumferential shape of a balance weight is composed so that the distance between the outer circumference of the balance weight and the piston is substantially constant in the closely approaching interval of the balance weight and piston....

20060013713 - Fuel pump: A fuel pump may have an armature 16 and a pump section 10. The armature 16 may include a shaft 17, a core 21 fixed to the shaft 17, and coils 29 that is wound around the core 21. The pump section 10 is rotatably driven by the shaft 17....

20060013712 - Wet and dry pump: Disclosed is a wet and dry pump, comprising: a housing having an inlet and an outlet of fluid; an impeller rotatably set in the housing; and a motor including a rotating shaft connected to the impeller, a stator fixed to an inner circumferential surface of the housing and having a...

20060013714 - Magnetic axleless liquid circulator: A magnetic axleless liquid circulator comprises a circulating base being a hollow base fixed onto a sidewall of a tank and having a hollow accommodating chamber protruded from the bottom of the circulating base; a vane set comprising a vane base disposed in the accommodating chamber and having a circulating...

20060013715 - Crimped piston to rod joint: A method for assembling a piston on a rod, and resultant piston and rod assembly, uses one or more lock rings that are mechanically deformed radially inwardly into respective locking grooves in the rod, thereby axially locking the lock ring to the rod. The lock ring can function as an...

20060013716 - Shape memory alloy wire driven positive displacement micropump with pulsatile output: Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize...

20060013717 - Suspension system for motor vehicles: A suspension system for motor vehicles with a level control for adjusting a predetermined height of the vehicle body is configured with at least one piston-cylinder unit which is provided with a work cylinder, a piston rod and a damping piston having damping valves, a pump of an oil reservoir,...

20060008355 - Bilge pump monitor with flow detection: Defined here is an apparatus that automatically determines the operating condition of a sump or bilge pump system. An electronic circuit combines a signal from a flow sensor at the output of the pump and a signal from the pump actuator. It indicates normal pump parameters as well as alert...

20060008356 - Hydraulic system, reservoir and pump suction enhancer for moror vehicle: A hydraulic system for a motor vehicle is provided with a pump suction enhancer for boosting the suction of operating oil into a suction port of an oil pump. The pump suction enhancer is composed of a body section for defining a small chamber, a venturi tube passage exposed to...

20060008357 - Pump system, charge relief mechanism and oil pressure control mechanism: There is provided a pump system including; a plurality of hydraulic pump bodies arranged in parallel; a plurality of pump shafts respectively driving the plurality of hydraulic pump bodies; a power transmission mechanism operatively connecting the plurality of pump shafts; and a pump case which accommodating the plurality of hydraulic...

20060008358 - Axial piston machine having a device for the electrically proportional adjustment of the volumetric displacement: An axial piston machine having a swashplate or an oblique axis which can be adjusted by means of servopistons and has a valve segment and an adjustment unit for the electrically proportional adjustment of the volumetric displacement. The adjustment unit comprises proportional magnets which can be activated electrically, and a...

20060008359 - Variable displacement compressor: A variable displacement compressor including a drive shaft through which a gas passage extends between front and rear ends of the drive shaft. The gas passage is connected to a suction chamber at the rear end of the drive shaft. The drive shaft includes a first gas inlet passage, which...

20060008360 - Compression system, multicylinder rotary compressor, and refrigeration apparatus using the same: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation...

20060008362 - Multi-piston pump/compressor: A pump/compressor that utilizes a wedge at a fixed angle to operate the pump's pistons at a fixed stroke. Alternatively the wedge can be moved axially to increase or decrease the clearance volume. Variable fluid flow at any clearance volume is achieved by rotating the wedge with respect to the...

20060008361 - Variable stroke/clearance mechanism: An assembly includes a cylinder (232) and a piston assembly (212) housed within the cylinder and configured for reciprocal motion relative to the cylinder. The piston assembly and cylinder include a magnet (230) and coil (234) configured to undergo relative motion of the piston assembly and cylinder. The assembly includes...

20060008363 - High-pressure pump, in particular for a fuel injection system of an internal combustion engine: A high-pressure pump having a pump housing in which a plurality of pump elements are disposed, and by means of which fluid is pumped at high pressure via a high-pressure conduit system to a common high-pressure connection. The pump housing has a housing body and for each pump element one...

20060008364 - Plunger actuated pumping system: Methods and apparatus for pumping fluids from a well utilizing a submersible pumping system. In one embodiment, the pump comprises a pump body operable to be disposed within tubing within a well. The pump body encloses a pump chamber having an inlet and an outlet. The inlet is in fluid...

20060008365 - Integrated pump and check valve apparatus: A pump apparatus is provided which comprises a displacement pump and a check valve apparatus. The displacement pump comprises a reciprocating piston within a housing having an interior wall spaced apart from the piston. The check valve apparatus comprises two check valves that control fluid flow under pressure exerted by...

20060008366 - Precision dispense pump: Precision dispense pumps comprise a housing that has an internal chamber disposed therein. A pressurizing assembly disposed within the chamber and includes a cylindrical pressurizing member having a head, a thin-walled skirt extending axially away from the head, and a flange is positioned circumferentially around the skirt. The pressurizing assembly...

20060008367 - Actuator and pump device: An actuator includes a fixed body and a movable body. The fixed body includes a first yoke, a pair of drive magnets overlapped so as to interpose the first yoke therebetween with their same polarities being directed to the first yoke, and a second yoke which faces an outer peripheral...

20060008368 - Modular rotor assembly: Portions of the drive system for a piece of rotating equipment are pre-assembled into a subassembly. The subassembly can be held together by a carrier that is fabricated to accept the components in a proper alignment so that the carrier can be installed as a unit. In the preferred embodiment...

20060008369 - Integrated ratio pump and check valve apparatus: A pump apparatus is provided which comprises a plurality of displacement pumps each connected to a check valve apparatus. The displacement pumps each comprises a reciprocating piston within a housing having an interior wall spaced apart from the piston. The check valve apparatus comprises two check valves that control fluid...

20060008370 - Liquid handling device with surface features at a seal: A sample handling tool includes a body having at least one plunger associated with a channel and arranged for axial movement within the channel. A seal is provided in the channel and sealingly engaged with a contact surface. The contact surface may include a surface feature, such that when contact...

20060008371 - Fluid lifting system: A fluid lifting for a lifting a geological fluid from a formation via a well while limiting environmental impact is provided. The fluid lifting system includes an assembly that is adapted to be raised and lowered within a lift tube by a cable or wire-line. When lowered the assembly traps...

20060008372 - Integrated pump and wash pump: A pump apparatus is provided which comprises a first displacement pump and a ceramic valve construction formed of a ceramic rotor, a ceramic stator having flat surfaces which are positioned in sealing relationship and a second displacement pump having check valves. The first displacement pump comprises a reciprocating first piston...

20060008373 - Mouth rinsing device having two detachably connectable housings: A mouth rinsing device comprising a pump housing and a reservoir. These two housings are arranged in series; i.e., the reservoir is attached to the base of the pump housing. A riser tube having a head on its end is situated on the pump housing and is fixed there by...

20060002799 - Peristaltic pump comprising a bearing member and a counter-member adapted to cooperate with a tube: P

20060002800 - Compressor control apparatus: A control device is provided for use with a pneumatic pump for generating output pressure, a pressure sensor for indicating the level of the output pressure, and an input device for receiving a target pressure level input by a user. The control device is configured to monitor the sensed output...

20060002801 - Rocker compressor mechanism: A compressor assembly for compressing a vapor, including a compression mechanism having at least one piston reciprocatingly mounted therein and a motor operably coupled to the compression mechanism. A drive shaft is rotatively mounted in the motor. A rocker mechanism for converting rotational motion of the drive shaft into reciprocating...

20060002802 - Hydraulic pump or motor: The mechanism such as a motor or a pump comprises a cam (10) and a cylinder block (12) which has a plurality of cylinders (14A, 14B, 14) connected to communication orifices (34A, 35A; 34B, 35B) disposed in a communication face (18). The mechanism further comprises a fluid distributor (20) having...

20060002803 - Bore and shaft assembly: An exemplary bore for a shaft of a turbomachine includes a longitudinal axis extending generally from an inner end to an outer end of the bore, an outer seat disposed proximate to the outer end of the bore at an outer seat radius for an outer seal ring wherein the...

20060002804 - Micro device incorporating programmable element: A micro device is provided that includes a body defining a chamber for receiving fluid. A rotational element is disposed in the chamber for acting on the fluid. The rotational element is rotatable about an axis in response to a rotating magnetic field. The micro device further includes a clutch...

20060002805 - Peristaltic pump comprising members for locating a tube: The peristaltic pump (1) comprises a rotor with rollers, a mobile jaw having an open position and a closed position, and further comprises, on each side of the rotor, a locating member for said tube adapted to receive it when it is pressed in and to allow it to slide...

20060002806 - Fluid end for a plunger pump: A fluid end for a reciprocating pump including a body having a base, a side and a longitudinal opposing side, a cylinder bore formed horizontally through the body and a vertical bore intersecting the cylinder bore defining a high stress region proximate the intersection, and a tension member extending through...

20060002807 - Hermetic compressor: A hermetic compressor comprising a discharge muffler. The discharge muffler includes a muffler body dented in a cylinder block and a muffler cover covering the muffler body. The muffler cover has an integral center fixing protrusion 61 extending toward the muffler body, while the muffler body has a fixing recess...

20060002808 - Mechanically actuated gas separator for downhole pump: A reciprocating downhole pump has a gas separator located at its bottom end. The separator forms a chamber that is expanded and contracted when the pump is reciprocated. Expansion and contraction of the chamber occurs by either the plunger reciprocating in the chamber or a piston coupled to the plunger...