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7488161 |
High pressure pump having downsized structure
A high pressure pump has a fuel passage and a pump chamber. Fuel flows into the pump chamber through the fuel passage. The high pressure pump includes a valve member and a plunger. The valve member...
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7419367 |
Magnetically actuated pump
A pump for pumping one or more media comprises a housing ( 1 ) having an actuator chamber ( 2 ) and at least one pump chamber ( 4 ). The pump chamber ( 4 ) is provided with an inlet port and an...
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7322801 |
Compact linear air pump and valve package
A compact air pump and valve package includes pump and valve assemblies integral with a pressure housing defining inlet ports and a plurality of fittings for connecting air lines to an interior of...
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7278443 |
Pulsation causing valve for a plural piston pump
A valve for causing pulsatile flow in a multi-piston plunger pump includes a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat; and a mechanism holding the...
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7258533 |
Method and apparatus for scavenging energy during pump operation
A pump comprises a body for at least partially defining a pumping chamber ( 28 ); a pump member which undergoes displacement when acting upon a fluid in the pumping chamber; and a piezoelectric...
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7241120 |
Piston machine with ported piston head
A piston machine includes a cylindrical wall ( 2 ) defining a swept volume ( 1 ) and having a plurality of gas inlet openings ( 5 ), and a piston ( 3 ) reciprocating in the swept volume ( 1 ), and...
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7217105 |
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...
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7182067 |
Storage-volume fuel injection system for an internal combustion engine
The injection system ( 1 ) includes a pump ( 7 ) for supplying high-pressure fuel to a storage volume, defined for example by a common rail ( 6 ), for supplying a number of injectors ( 5 ). The...
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7080975 |
Integrated pump and ceramic valve
A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing...
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6942469 |
Solenoid cassette pump with servo controlled volume detection
Servo controlled solenoids provide actuation of a pump piston and valves, and electronic LC resonance measurements to determine liquid volume and gas bubble volume. Third order nonlinear servo...
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6884041 |
Electromagnetic valve-controlled fuel injection pump for internal combustion engines, especially diesel engines
A solenoid-valve-controlled fuel-injection pump for internal combustion engines, in particular diesel engines, has a solenoid valve, whose valve needle separates a high-pressure region from a...
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6869275 |
Piezoelectrically driven fluids pump and piezoelectric fluid valve
A piezoelectrically driven fluid pump includes a chamber having two opposite sidewalls formed by flexible membranes, and an inlet and an outlet each regulated by a valve. Separate piezo elements...
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6843641 |
Radial piston pump
A radial piston pump for generating high fuel pressure in common rail fuel injection systems of internal combustion engines having a drive shaft which is rotatably supported in a pump housing and...
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6790018 |
Reciprocating compressor having an exhaust valve controlled by an electromagnet
Disclosed is an exhaust valve capable of correctly opening/shutting an exhaust port of a cylinder based upon variation of the flux density of an electromagnet. The inventive exhaust valve may...
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6729553 |
Injecting a fluid at a variable injection pressure
The invention relates to a device for injecting a fluid, which is at high pressure, through an injection nozzle and an externally actuated actuating device received with prestressing on a pump...
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6722862 |
Metering pump with combined inlet/outlet valve element
A metering device for a heating appliance has a pump arrangement for the delivery of liquid that is supplied via an inlet region to an outlet region and a valve arrangement by which the pump...
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6682316 |
Dispensing system for petrol-pumps, including a bypass and principle valve
A dispensing system for petrol pumps, comprising a pump, a dispensing valve in a petrol pump nozzle and an electrically controllable solenoid valve ( 10 ), characterized in that the solenoid valve...
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6676387 |
Metering pump with a rotary valve responsive to electrical signals from the contact between a fluid responsive shuttle and dual probes
A metering device contains a rotor which defines elongate chamber, there being a shuttle contained within the chamber movable between two terminal end positions. Frusto-conical surfaces defined on...
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6651630 |
High pressure fuel pump
In order to provide a method for high volume and high pressure operation of a variable delivery type single cylinder plunger pump, the displacement of the piezoelectric element 20 is magnified by...
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6620273 |
Micropump including ball check valve utilizing ceramic technology and method of fabrication
A multilayer ceramic micropump including a monolithic ceramic package formed of a plurality of ceramic layers defining therein an integrated first ball check valve, and a second ball check valve in...
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6565333 |
Fluid discharge apparatus and fluid discharge method
A positive displacement pump is composed of a first actuator for relatively moving a piston and a housing, a cylinder for accommodating the piston, and a second actuator for relatively moving the...
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6554590 |
High pressure pump
A high pressure pump includes a cylinder body. The cylinder body has a cylinder and a valve recess communicated with the cylinder. A cover is attached to the cylinder body to surround the valve...
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6530759 |
Reciprocating plunger pump with seal mounting support
A high pressure fuel pump has a plunger that extends through a cylinder and is reciprocally located in a pressurizing chamber. The plunger is reciprocated by a lifter and changes the volume of the...
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6470857 |
Flow amount control device
In a flow amount control device which control flow amount of fuel to be supplied to a high pressure fuel pump, an opening, which communicates with a port for passing fuel to the high pressure fuel...
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6447273 |
Variable-delivery high-pressure fuel pump
A variable-delivery high-pressure fuel pump having a pump chamber varying in volume as a plunger moves in and out, an inlet port valve forming a part of chamber walls of the pump chamber, the inlet...
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6318977 |
Reciprocating compressor with auxiliary port
A reciprocating compressor that includes an auxiliary port 38 in series with a check valve 40 to move fluid at an intermediate pressure that is between the main suction and discharge pressures....
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6315531 |
Jerk pump provided for an internal combustion engine, with a dampened integral solenoid valve
A jerk pump provided for an internal combustion engine has an integral solenoid valve in which a pump plunger driven by a cam delivers fuel at high pressure through a channel that extends in the...
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6280160 |
Distributor-type fuel injection pump
A fuel injection pump of the distributor type which has a reciprocatingly driven pump piston that is load-bearing in a rotating distributor shaft which pumps fuel out of a pump work chamber to...
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6276610 |
Control valve
Pumps and injectors having a control valve spring arrangement configured to provide a force step when the control valve is at a rate shape position, and related methods for operating a control...
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6241480 |
Micro-magnetohydrodynamic pump and method for operation of the same
A micropump fabricated in a planar substrate is provided with a valving chamber which is communicated to a pumping chamber. The valving chamber has an inlet and outlet port. Both the valving...
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6227823 |
Compressed gas dispensing station with high pressure compressor with internal cooled compression
A compressed gas dispensing station having a high pressure gas compressor with a cyclic control system for selective recirculation of cooled, ultra high pressure gas through the compression chamber...
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6209309 |
Pulse width modulated fuel flow control for an engine
Mechanical complexity and high cost in a fluid flow control system are avoided through the use of a pulse width modulated (PWM) valve (20) to meter a fluid flow to an inlet (50) of a pump (16) that...
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6149400 |
Method and apparatus for a suction valve of the plate-type construction
Method for the stepless regulation of the delivery of a suction valve of the plate-type of construction, comprising a valve plate which is actuated by an electromagnet arranged in a valve catcher,...
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6132188 |
Dosing pump with magnetic control
The invention relates to a metering pump comprising a pump chamber (2) having a longitudinal axis (3) and presenting an admission orifice (4) and a delivery orifice (5), a piston (6; 30) pierced by...
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6120255 |
Scroll machine with capacity modulation
An improved capacity modulation system for scroll-type compressors is disclosed in which a valve body of a solenoid valve assembly is secured to the inner wall of the hermetic shell and the...
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6116870 |
High pressure pump with solenoid operated valve
A high pressure pump which has a working chamber, which on the one hand, is connected to a low pressure circuit via a solenoid valve and on the other hand, is connected to a high pressure reservoir...
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6062810 |
Turbomolecular pump
A turbomolecular pump evacuates gas in an apparatus (or a chamber) by means of a rotor having blades and/or spiral grooves which rotates at a high speed. The turbomolecular pump includes a casing...
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6059545 |
Fuel pump control valve assembly
A fuel pump or injector has a control valve with a piston valve body axially movable over a motion displacement interval defined by first and second sub-intervals. A first control valve spring...
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6036460 |
Flexible armature for fuel injection system control valve
An armature having a middle beam portion connected to an outer body portion flexes during actuation of the control valve so that movement of the control valve relative to the armature outer body...
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5957674 |
Variable-discharge high pressure pump
A variable-discharge high pressure pump capable of facilitating the manufacturing and providing sufficient lubrication. The pump comprises a cam shaft provided with a cam surface by which a tappet...
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5810570 |
Super-low net positive suction head cryogenic reciprocating pump
A novel reciprocating pump for cryogenic fluids having a super-low NPSH requirement. The pump has a spring-loaded intake valve made of magnetic material and a reciprocating piston having a...
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5807085 |
Liquid medicine supplying system with valve devices
A liquid medicine supplying system comprises a housing 11 including a pump chamber 27, a diaphragm 28 for changing a volume of the pump chamber 27, a first flow path 31 for guiding liquid in a...
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5749717 |
Electromagnetic fuel pump for a common rail fuel injection system
A pump for a fuel injection system, the pump primarily including a pump body having a pumping chamber and a pump body end portion, a control valve disposed in a control valve chamber, a...
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5713729 |
Pump having a three-way valve
A pump having a three-way valve has a motor for generating a turning effect by an electric power applied thereto. The pump pressurizes a fluid by using an impeller. The three-way valve is installed...
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5700139 |
Fuel injection pump of the distributor type with a magnetically actuated valve member of a switching valve connected to a low-pressure piston
A fuel injection pump of the distributor type which has at least one pump piston driven in a reciprocating stroke motion, a rotating distributor shaft which via a distributor bore upon rotation...
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5649810 |
Apparatus for delivering fluid to a patient
A fluid delivery system is disclosed which includes a pump and a fluid delivery set. The fluid delivery set includes a stop cock valve, and the pump includes a valve actuation unit into which the...
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5630709 |
Pump having pistons and valves made of electroactive actuators
The present invention provides a pump for inducing a displacement of a fluid from a first medium to a second medium, including a conduit coupled to the first and second media, a transducing...
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5605317 |
Electro-magnetically operated valve
An electro-magnetically operated valve for control of pressurized fluid including a coil bobbin disposed within a housing, having a plunger subassembly moveably mounted in said housing having a...
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5577892 |
Method of injecting fuel including delayed magnetic spill valve actuation
In a method of injection fuel for Diesel engine comprising a high pressure injection pump with a fuel supply line for supplying high pressure fuel to fuel injection nozzles wherein a fuel control...
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5562428 |
Fuel injection pump having an adjustable inlet poppet valve
A fuel injection pump driven by an electric coil, the pump including a poppet valve slidable within a fuel passage in an armature structure and relative thereto in response to movement of the...
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