Pumps inventions 08/06

20060193728 - System and method for controlling a variable speed compressor during stopping: A compressor system operable to shutdown in response to a shutdown signal. The compressor system includes a compression device operable between a first speed and a second speed to produce a flow of compressed fluid at a pressure. A blowdown valve is movable between a closed position and an open...

20060193729 - Generating a pwm signal dependent on a duty cycle having a piecewise linear relationship with temperature: A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise...

20060193730 - Method and apparatus for controlling microfluidic flow: An apparatus includes a pump; a gas pressure sensor; a microfluidic chip defining a microfluidic conduit; and a gas conduit providing fluid communication between the pump, the gas sensor and the microfluidic conduit; and a controller coupled to the pump and the gas pressure sensor, whereby the controller controls the...

20060193731 - Paint system: A paint system containing at least one pump 150 and at least one paint mixing vessel 160. At least one return line 46 functions to route paint from the paint system back into the paint mixing vessel from whence it was drawn. At least one eductor 522 fluidly communicates with...

20060193732 - Variable capacity compressor and starting method thereof: A variable capacity compressor and a starting method thereof. The variable capacity compressor includes a four-way valve having a suction gas distribution function and an idling chamber high-pressure injection function, thereby achieving a reduced manufacturing cost and an improved reliability incurred by the use of a validated component. Further, a...

20060193733 - Method of manufacturing an assembled body composed of a plurality of members, manufacturing method of electromagnetic control valve, and control valve for variable capacity compressors: There is provided a brazing method which makes it possible to rationally perform not only the brazing between a metal member such as a stator made of a magnetic material and a metal member such as a guide pipe made of a non-magnetic material but also the magnetic annealing of...

20060193734 - Integrated turbocharger lubricant filter system: An exemplary center housing for a turbocharger includes a lubricant control valve that includes a stem seated at least partially in the center housing where the stem has one or more orifices for controlling lubricant flow. The exemplary center housing also includes a lubricant filter positioned adjacent the stem of...

20060193735 - Oscillating type compressor: A lip ring is attached to a piston so as to be rotatable relative to the piston in a circumferential direction, and a seal portion is provided between a ring attachment groove of the piston and an attachment portion of the lip ring. During a suction stroke, the lip ring...

20060193737 - Fluid pump: A fluid pump comprising a plurality of piston cylinders (1, 2, 3, 4), wherein each individual cylinder has a piston rod (5, 6, 7, 8) with a piston (9, 10, 11, 12) arranged in the cylinder and a valve housing (13, 14, 15, 16) mounted at the end of the...

20060193736 - Fuel injection device for an internal combustion engine: A fuel injection apparatus has a high-pressure pump and a fuel-supply pump that delivers fuel from a fuel tank to the high-pressure pump. The high-pressure pump has a housing with an internal chamber that contains a drive unit for at least one pump element having a pump piston driven by...

20060193738 - Pump apparatus and method for continuously conveying a viscous material: A pump apparatus includes at least two main delivery cylinders, a delivery pipeline for conducting viscous material in a flow direction, and a switchable gate mechanism which is moveable between a first position to establish a connection between an outlet port of a first one of the delivery cylinders and...

20060188380 - Pump having independently releasable ends: In certain embodiments, a pump includes a first end section having a fluid inlet and a fluid intake valve, a second end section having a fluid outlet, and a midsection disposed between the first and second end sections, wherein the midsection includes a piston coupled to a drive member. The...

20060182635 - Compressor protection and diagnostic system: A system includes a compressor having a shell and a motor disposed within the shell. A first sensor is provided for monitoring a discharge temperature of the compressor, a second sensor is provided for monitoring a temperature of the motor, and a third sensor is provided for monitoring at least...

20060182637 - Method and apparatus for reducing free flow risk: A technique for reducing the risk of free flow through a pump is disclosed. The technique includes sensing a pressure difference between the pump inlet and outlet. The pressure difference is mechanically communicated to a flow restricting element. The flow restricting element increases resistance to flow exiting the pump outlet...

20060182636 - Method for controlling a hydraulic system of a mobile working machine: A method is described for controlling a hydraulic system, particularly of mobile working machine, with at least one internal combustion engine driving at least one hydraulic pump with adjustable volumetric displacement and possibly additional fixed-displacement pumps...

20060182638 - Vacuum device and vacuum pump: A vacuum apparatus has a vacuum chamber provided with a gas inlet and a gas outlet, and mechanical vacuum pumps in a plurality of stages for reducing a pressure inside the vacuum chamber and maintaining the pressure-reduced state. The vacuum apparatus has an ejector pump (60) connected to a discharge...

20060182639 - Hat in fan: A hat in a fan that both serve as a hand fan and as a hat is provided by the present invention. A transformable handle made of rigid material comprising of coupled upper and lower handle serves as a grip for the fan for fanning. The said coupled upper and...

20060182640 - High pressure pump: An ultrahigh pressure pump includes a frame including at least one radially-extending member having an outer frame pivot disposed at outer end thereof; a crank rotatably mounted in the frame and adapted to be driven by a power source and a crank pin offset from a rotational axis of the...

20060182641 - Multistage sealed coolant pump: A multistage sealed pump is provided for use in an X-ray tube cooling system which is substantially more efficient than pumps of known construction and which provides substantially higher pumping pressure at lower motor current than conventionally. Cooling liquid can be transferred from stage to stage by interconnecting tubing external...

20060182642 - Protection device for intake pipes of lubricating coolant pumps: A protective pot, adapted to be mounted to a mouth of an intake pipe of a lubricating coolant pump for a machine tool, includes a closed bottom, a closed peripheral wall and at least one suction window arranged at a distance above the bottom....

20060177317 - Direct connection manifold for reciprocating piston pump: An airless sprayer utilizing a reciprocating piston pump (12) uses a block fluid manifold (16) attached directly to the pump cylinder (14) and which includes provisions for a pressure sensor (20), a dump or safety valve (18) and a hose outlet to minimize pressure drop which in turn maximizes spraying...

20060177318 - Gas compressor: A gas compressor device (2) comprising a motor having a rotatable motor shaft (18), a rotating disk (6) attached to the motor shaft (18), and a compressor (10) comprising pistons (8), piston rods (62), cylinders (50), and the rotating disk (6) has a top contour such that, as the disk...

20060177319 - Turbomachine, particularly exhaust gas turbocharger: A turbomachine, particularly an exhaust gas turbocharger, comprising a compressor wheel arranged in a compressor housing, a turbine wheel arranged in a turbine housing, and a rotor shaft which is guided in a bearing casing and which has fastened thereto the compressor wheel on the one hand and the turbine...

20060177320 - Combined low power oil filled submersible motor and its protector: The present utility model relates to submersible motor and its protector. A shared assembling base is provided to support and fix one end of the housing of the submersible motor and protector, the submersible motor has a main shaft to connect through the protector. The end of the assembling base...

20060177321 - Two piece separable impeller and inner drive for pump: A separable impeller and inner drive are constructed from different plastics. The inner drive includes a metallic drive ring that receives drive lugs extending from the impeller. A bushing directly supports the inner drive and impeller and maintains extensions from the impeller in engagement with an annular groove in the...

20060177324 - Blower system for generating controlled columnar air flow: A blower system including an air guide having at least one edge where the air guide defines a central opening. The blower system includes a power source connected to the air guide and a fan positioned in the opening and connected to the power source. The fan includes a plurality...

20060177322 - Electric motor driven blower assembly with integral motor cooling duct: An electric motor driven blower assembly provides for a complete air cooling duct running from the inside of the blower housing to the motor at the back of the housing. A vertical cooling tube on the scroll housing is mated to an open, moldable trough in the motor cover across...

20060177323 - Rotor for a cooling fan: A rotor for a cooling fan has a hollow hub having an open lower end. A permanent magnet is received in the hub. A rod is received in the hub and extends downwards. Multiple vanes are evenly formed around the periphery of the hollow hub and extend radially. Multiple notches...

20060177325 - Motor-driven pump for pool or spa: An improved motor-driven pump is provided for delivering a flow of water in a swimming pool or spa environment or the like. The improved pump includes a motor mounted within a motor housing having a seal plate mounted at one end thereof. The seal plate carries a shaft bearing for...

20060177326 - Piston pump: A piston pump includes a pump housing having a suction port and a discharge port. A piston is mounted in a bore of the pump housing and forms a pump chamber. Suction and discharge valves are provided on the opposite sides of the pump chamber, respectively. The suction valve includes...

20060177327 - Pump assembly for a vehicle braking system with eccentric drive actuator: A hydraulic pump assembly 20 of a vehicle braking system includes at least one pair of hydraulic pumps for pumping brake fluid. Each pump 13 has a pump member 14. The pump members 14 of a pair of pumps are disposed in opposing, spaced relation along an axis. An eccentric...

20060177328 - Peristaltic pump providing simplified loading and improved tubing kink resistance: A peristaltic pump is provided that simplifies the loading of tubing and automatically self-centers the tubing relative to the pump wheel, wherein the pump includes an elongated arm having slotted pinch forks for engaging the tubing. The pinch forks are arranged substantially tangential to the pump wheel to reduce tubing...

20060177329 - Peristaltic pump: The invention relates to a peristaltic pump comprising a tube-tube bed unit (1) which is connected in a rigid manner to the tube (3) in the pressed region (5) and which can not be separated from the tube bed (2). The tube-tube bed unit (1) comprises features or means (6,...

20060177330 - Pump valve with controlled stroke: A valve assembly for a pump includes a pump chamber and a pump head having complementary recesses formed therein which cooperate to define a valve compartment including a pocket and an opposed seat. A flexible valve element is disposed between the recesses and adapted to move between a closed position...

20060177331 - Compressor valve plate: A valve plate assembly for a compressor includes a first plate and a second plate disposed between and providing communication between a compressor head and a compressor body. The first and second plates are separated by a spacer supporting a load approximately centrally relative to the first and second plates....

20060171814 - Linear-compressor control system, a method of controlling a linear compressor, a linear compressor and cooling system: The present invention relates to a system of controlling a piston in a linear compressor, a method of controlling a piston in a linear compressor, as well as a linear compressor, particularly applicable to cooling systems that may include, for instance, refrigerators, air-conditioning systems and the like. The objectives of...

20060171815 - Electro-magnetic air blower: An electro-magnetic air blower is a replacement for a traditional supercharger and turbocharger used on an internal combustion engin, both gasoline and diesel engines. The device includes two parts, both of which are identical in form and structure. Each of the two device measures three inches in diameter and is...

20060171816 - Method of controlling a pumping assembly: A method of displacing a pumping assembly. In a first step, a first current is applied in a first direction through a coil assembly to displace a drive assembly from an initial position to cause a first pumping motion. Then, the drive assembly is returned to the initial position to...

20060171817 - Compressor and method of using compressor: A compressor of the present invention is provided with a plurality of housing members (a front housing, a cylinder block, and a rear housing) that forms a body, a fastener (a bolt member) for coupling the plurality of the housing members to one another, a drive shaft inserted through the...

20060171818 - Oil pump: An oil pump includes a first control valve including a first valve body provided in a first valve housing for reciprocating therein, the first valve body for controlling discharge pressure of working oil discharged from a pump main body, a first valve chamber formed in the first valve housing, the...

20060171819 - Compressor discharge muffler: A discharge muffler (20) in an HVAC&R system (100) includes a plurality of tubes (34, 38, 42) of predetermined length that are disposed at a predetermined spacing in substantially mutual axial alignment by a plate (30). The tubes (34, 38, 42) are secured adjacent to a compressor discharge (24) to...

20060171820 - Cooling arrangement for a portable air compressor: A portable air compressor assembly includes a tubular frame having side sections and an assembly longitudinal axis. A support plate between the side sections supports a power unit having a longitudinal axis arranged perpendicular to the assembly longitudinal axis. A compressor having a compressor head and longitudinal axis is mounted...

20060171821 - Hydraulic pump jack sytem for reciprocating oil well sucker rods: A pumping system for vertical reciprocation of a string of sucker rods within oil well tubing having a positive displacement pump at the bottom thereof, includes a vertically positioned elongated hydraulic cylinder supported above the tubing and in alignment therewith, the cylinder having a vertically displaceable piston therein. A pump...

20060171822 - Linear compressor: A linear compressor comprising has a cylinder part including a cylinder bore. A piston disposed in, and is slidable within, the bore. A main spring connects the cylinder part directly or indirectly the piston. A connecting rod connects between the main spring and the piston. A stator has an air...

20060171823 - Inkjet head: An inkjet head includes a flow-path unit, a reservoir unit and an actuator unit. The flow-path unit includes a common ink chamber and plural individual ink flow paths. The actuator unit includes plural first electrodes and a second electrode. The first electrodes are arranged to correspond to pressure chambers, respectively....

20060171824 - Compressor connecting rod bearing design: An improvement to the oil supply grooves in connecting rods for compressors increases surface area in an upper bearing half. The upper bearing half transmits a force from a driveshaft to the connecting rod. The lower half of the connecting rod includes an oil supply groove that extends over the...

20060171825 - Reciprocating compressor and refrigerator having the same: Disclosed are a reciprocating compressor and a refrigerator having the same. The reciprocating compressor comprises a casing, one reciprocating motor mounted at a frame unit provided in the casing for generating a linear-reciprocation driving force, a first compression unit for compressing a refrigerant directly sucked without passing through the inside...

20060171826 - Electric fan with oil-retaining structure: An electric fan includes a fan base (10), a bearing (40), a rotor assembly (20), and an oil-retaining structure. The fan base forms a center tube (11) receiving the bearing therein. The rotor assembly includes a fan hub (22), and a pivot axle (23) joined to the fan hub. The...

20060171827 - Crossover switching and pump system: The present invention involves several different embodiments related to a crossover switching valve. The crossover switching valve is preferably designed to receive fluid from a reservoir, or other fluid source, and direct the inflow and outflow of the fluid between the valve and one or more pumps. In one embodiment,...

20060171828 - Fluid transfer pump: A fluid transfer pump comprises a cylinder having a suction opening and a discharge opening, a plunger provided within the cylinder movable to and fro in a direction of an axis line of the cylinder, and a membrane-like sealing member for sealing a gap between the cylinder and the plunger,...

20060171829 - Chamber for compressor and compressor using the same: A chamber (10) for a compressor is disclosed in which at least one portion has a multi-layer structure (11) and plates having the multi-layer structure are tightly attached to thereby reduce noise and vibration by virtue of mutual frictional force. Vibration energy is transformed to thermal energy according to friction...