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Match Document Document Title
8915722 Integrated fluid end  
Tapered valve guide and spring retainer assemblies are described for use in plunger pump housings that incorporate corresponding outwardly flared discharge and suction bores, as well as structural...
8905732 Fluid working machine  
In usual hydraulic pumps, a separate assembly opening is provided for every valve of the hydraulic pump. This design causes sealing problems. It is proposed, that the fluid inlet valve and the...
8870554 Pump with wear sleeve  
A pump is disclosed, comprising: a pump block defining a cylinder in which a piston is mounted for reciprocation and positive displacement of fluids from an intake port of the pump block to a...
8845305 Valve and diaphragm for a pump  
A diaphragm pump (10) having a pump body (11) providing opposing pump chambers (12, 13). Mounted in the body is a piston assembly (14) having pistons (15) joined by a piston rod (16). Each piston...
8827242 Valve cartridge for pump systems  
An illustrative valve cartridge for a pump system is disclosed. In one example the valve cartridge includes a cartridge body, a mounting flange operatively coupled to the cartridge body, wherein...
8800167 Pneumatic inflating device contained entirely within shoe sole  
A pneumatic inflation device disposed within the sole of a shoe and comprising a pump with integral air release valve and which is entirely within the sole, a pump actuator which is entirely...
8784081 Plunger pump fluid end  
Plunger pump fluid ends incorporate housings with structural features that facilitate manufacture while providing improved internal access, reduced weight, and reduced likelihood of fatigue...
8763636 Valve assembly for fuel pump  
A valve assembly for use in a fuel pump comprises a body member with a valve aperture, a valve member movable within the body member and adapted to close the valve aperture, and a biasing...
8747083 Air compressor having enlarged compartment for receiving pressurized air  
An air compressor includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition formed between the cylinder housing and the outlet receptacle and having an...
8608464 Check valve  
Check valve with a valve housing, on which is formed a valve seat. The valve seat is designed as an oblique face with respect to a flow direction. A shut-off element has at least one sheet-like...
8444401 Check valve and piston pump having check valve  
A check valve for arranging between a first pressure chamber, in which a first pressure prevails, and a second pressure chamber in which a second pressure prevails. The valve comprises a valve...
8393142 Reductant dosing manifold  
A reductant dosing manifold is disclosed. The reductant dosing manifold may have a housing with a pump interface configured to directly connect the reductant dosing manifold to a reductant pump,...
8365654 Half-sleeved and sleeveless plastic piston pumps  
In one aspect, a brake pump assembly with a hydraulic block and a pumping element including a polymer piston that is received in a piston bore. A circumference of the polymer piston defines a...
8366409 Reciprocating pump  
A reciprocating pump is provided that does not leak working liquid to the exterior. A communicating tube 14 extends over both a first manifold 4 and a second manifold 5 such that a reciprocating...
8231367 Compressor having a simplified structure with a reduced size  
There is provided with a compressor comprising: a compressor main body in which fluid inhaled from an inhale port is compressed, and the compressed fluid is exhausted from an exhaust port; and a...
8221100 High pressure water pump valve and seal structure  
A valve seat for use in a high pressure pump comprises an inner portion force fit within an outer portion. The outer portion has a fluid plenum at an outer peripheral surface. Fluid passages...
8206137 Cylinder apparatus, compressor and manufacturing method of cylinder apparatus  
There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the...
8197240 Compressor having improved valve plate  
A compressor may include a compressor body defining a compression cylinder, a compressor head coupled to the compressor body, and a valve plate assembly disposed between the compressor head and...
8147225 Pump valve having a limiting element  
The invention concerns a pump having a housing; a working chamber located in the housing for delivery of a fluid; a suction channel which is in flow connection with the working chamber for guiding...
8123505 Reciprocating pump with sealing collar arrangement  
An objective is to provide a reciprocating pump kept from lowering its performances, while restraining the cost from increasing. Collars 14, 20, 21 made of a material more excellent in resistance...
8092198 Fuel pump for internal combustion engine  
A fuel pump includes a pump housing having a compression chamber. A plunger is axially movable in the pump housing for pressurizing fuel in the compression chamber. A discharge valve is configured...
8079837 Compressor  
Compressor (1) having a region of pressure intermediate between discharge pressure and suction pressure (especially, crank chamber (10)), characterized in that a valve mechanism (21) is provided...
8030846 Discharge valve assembly for linear compressor  
The present invention discloses a discharge valve assembly for a linear compressor, comprising: a discharge valve installed at one end of the cylinder to be opened and closed, a compression space...
7863035 Fluidics devices  
The invention relates to fluidics as used in medical and diagnostic equipment and relates further to means for purifying, abstracting, filtering, detecting and/or measuring analytes in liquid samples.
7857605 Inlet throttle controlled liquid pump with cavitation damage avoidance feature  
A liquid pump includes an electronically controlled throttle inlet valve to control pump output. With each reciprocation cycle, a plunger displaces a fixed volume of fluid. When less than this...
7828474 Shot pump and variable-speed-type two-liquid metering and mixing apparatus  
A shot pump including a cylinder standing upright and an inlet having a check valve which allows a paste-like transferred substance to only flow into the cylinder therethrough. The shot pump also...
7654283 Check valve and pump including check valve  
A check valve includes a tubular valve seat frame, a valve seat that is fixedly secured to the inside of the valve seat frame and has a communication hole through which a working fluid flows, and...
7640947 Microfabricated fluidic circuit elements and applications  
Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a...
7600532 Check valve having integrally formed seat and seal body  
A valve assembly includes first and second conduits having respective first and second flanges in abutment with each other, a stopper in the second conduit, and a valve body secured between the...
7568500 Co-axial pressure relief device for air inflator  
A pressure relief device for an air inflator includes a pipe connector, a seal member, a check valve mounting ring, a check valve, an air cell connector, and a pressure relief control ring. Thus,...
7431575 Auto valve priming pump  
A priming pump for fluid delivery arranged with a base defining a flow inlet, a flow outlet, and a control valve positioned therebetween. The priming pump includes a housing assembled to the base...
7399169 Compressor  
The invention provides a compressor that can reduce occurrence of vibration and noise due to self-induced vibration of an suction valve at the time of a low flow rate surely with an inexpensive...
7387221 Fluid discharge pumping apparatus  
A fluid discharge pumping apparatus includes: a drive mechanism; a cylinder; an outflow valve mechanism and an inflow valve mechanism coupled to the cylinder; a piston member inside the cylinder;...
7377756 Rapid exhausting mechanism in pump unit  
A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air to the air...
7331773 Pump provided with exhaust valve device and hemodynamometer incorporating the same  
A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air into the pump...
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...
7214039 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...
7083400 Valve arrangement for a small hermetic compressor  
A suction and discharge valve arrangement for a small hermetic compressor of the type presenting a compression cylinder (1), which has an end closed by a valve plate (10) and which has a suction...
7074022 Discharge valve assembly for reciprocating compressors  
A reciprocating compressor including cylinder block with a plurality of cylinder bores. A piston is positioned in each bore and mounted to move in response to the a crankshaft, causing each piston...
7066722 Discharge valve for compressor  
A compressor assembly including a compressor mechanism, a compression chamber and a discharge chamber. A discharge port provides fluid communication between the compression chamber and the...
7059344 Discharge valve mechanism for variable displacement compressor  
A discharge valve mechanism has a plurality of discharge openings. The discharge openings are placed in an open or closed state by a plate-like valve element. Each of the discharge openings is...
7001156 Structure of an air inflation device  
An improved structure of an air inflation device is disclosed. External air is drawn to the motor and cylinder to provide rapid cooling so that the efficiency of the motor is maintained. In the...
6986649 Micropump with integrated pressure sensor  
An exemplary system and method for manufacturing micropump systems having integrated piezoresistive sensors is disclosed as including inter alia: a substrate, an inlet channel, an outlet channel,...
6948920 Toilet bowl and tank drainage device  
A hand held an portable pump has a housing with an inlet on the bottom and an outlet on its side. A central tube extends up from the housing and has a bulb attached at its end. An inlet gate is...
6921253 Dual chamber micropump having checkvalves  
A micropump has two chambers separated by an actuator for causing fluid to flow in the chambers. Each chamber is equipped with a ball that acts as a valve for allowing flow in a desired direction....
6905318 Compressor including tapered discharged valve and valve seat  
A compressor includes a compression chamber for compressing working fluid within an inside thereof, a discharge port, through which the working fluid flows out from the compression chamber, and a...
6848893 Compressor check valve  
A compressor check valve having a valve bolt and a valve bolt cover for noise reduction and mitigation of impact from a valve bolt on the valve bolt cover. A bolt insertion hole is provided in the...
6767194 Valves and pumps for microfluidic systems and method for making microfluidic systems  
The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap...
6748971 Discharge valve assembly of fluid machinery  
A discharge valve assembly of fluid machinery is provided. The discharge valve assembly of fluid machinery includes a valve housing connected to a discharge side of a compression chamber, forming...
6742994 Reciprocating pump with malfunction detecting apparatus  
A reciprocating pump which is capable of detecting abnormalities in the sucking and discharging of fluid, such as the exhaustion of oil or the clogging of oil on the discharge side, by making use...

Matches 1 - 50 out of 138 1 2 3 >