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9011118 Air compressor  
An air compressor with enhanced air compressing effect comprises a mounting chassis with a coupling aperture, a piston having a piston rod with a crankpin linking bore and a piston head with an...
8998593 Fluid end assembly  
A fluid end assembly including a pump housing with a number of interior passages for the flow of fluids. The housing has a plunger bore with a closed inner end and an open outer end. A suction...
8967189 Hollow valve plate  
The hollow valve plate 1 of a piston compressor for liquid-cooled reed valves comprises a single half-shell 3 with cooling channels 4 which are open on the cylinder side, which said half-shell is...
8950432 Hollow valve plate  
The hollow valve plate (1) of a piston compressor includes a single half-shell (3) with cooling channels (4, 5) that are open toward the side of the pressure valves (8), with said half-shell being...
8864475 Pump with wash flow path for washing displacement piston and seal  
In general, a piston-type pump includes a wash flow path that allows a wash liquid such as water to pass through to provide washing and cleaning as the pump operates. The pump may be used in...
8777589 Valve actuation system for a suction valve of a gas compressor for refrigeration equipment  
A system for actuation in an admission valve of a gas compressor including an admission valve being configured to allow the input of gas inside the cylinder upon the axial movement of the piston...
8690554 Diaphragm pump using duckbill and other types of valves  
A diaphragm pump is provided that features a valve housing configured with inlet openings and outlet openings; inlet duckbill check valve assemblies, each configured to be arranged in a respective...
8622315 Fluid injector having a reed valve  
With reference to FIG. 1, the present invention provides a fuel injector (19) comprising a reed valve (35). The reed valve has at least one orifice and at least one reed valve blade, the or each...
8579606 Fluid transportation device  
A fluid transportation device includes a valve seat, a valve cap, a valve membrane, and an actuating module. The valve seat has an outlet channel and an inlet channel. The valve cap has a tilt...
8568116 Compressor having a u-shaped discharge hole and a u-shaped discharge valve  
A compressor wherein a valve plate formed with a suction hole and a discharge hole is interposed between a cylinder head and a cylinder block and a discharge valve formed as a reed valve is...
8469681 Double-diaphragm pumps  
A double-diaphragm pump includes a pair of axially spaced apart pumping chambers, each chamber having a pumping diaphragm which divides each chamber into an inner and outer compartment. Inner ends...
8408886 High pressure plunger pump  
High pressure plunger pump, comprising at least two in-line cylinders as seat for respective plungers, where each cylinder is connected via respective conduits and relative valves to an intake...
8398385 Refrigerant compressor  
Refrigerant compressor for a hermetically encapsulated small refrigerator, which has a piston (20) guided in a piston bore (3) of a cylinder housing (1), the cylinder housing being frontally...
8348644 High pressure fuel injector supply pump  
A pump includes a cylinder and a plunger. The cylinder defines an outlet-side passage therein. The plunger is reciprocably received within the cylinder. An inner peripheral surface of the cylinder...
8342824 Piston compressor, particularly refrigerant compressor  
A piston compressor, particularly a refrigerant compressor includes a compression chamber in a compressor block, the compression chamber being delimited by a cylinder head (10), the cylinder head...
8282368 Check valve  
A check valve. An illustrative embodiment of the check valve includes a valve body, a plurality of discharge port openings having at least one of a non-uniform width and a non-uniform position...
8226386 Deep force pump for oil wells  
Once the production route by the tubing has been selected, the stem travels through the inside of a guide whose upper end has a diameter adjusted to that of a rod which develops, increasing until...
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...
8206130 Hydraulic motor having radial cylinders capable of high speed rotation  
A radial cylinder hydraulic motor comprises: oscillating hydraulic cylinders (1) driven to oscillate by means of an eccentric crankpin (2) formed on the motor shaft (3), the oscillating cylinder...
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...
8186978 Pump with linear actuator  
A pump includes a housing with a pumping chamber, first and second check valves, and an inlet and an outlet in fluid communication with the pumping chamber through the check valves. The housing...
8157549 Multi-channel fluid conveying apparatus  
A multi-channel fluid conveying apparatus, for delivering a fluid, includes a valve seat, a valve cover, a valve membrane, a plurality of temporary-deposit chambers, and an actuating device. The...
8147226 Valve assembly for pressure washer pump  
A pressure washer pump generally includes a pump housing that defines a cavity, an opening into the cavity and a bottom of the cavity generally opposite the opening. A valve assembly is disposed...
8128385 Valve structure  
A valve structure includes a partition wall, a communicating bore, a valve body and a restraining portion. The partition wall is provided in a fluid container for dividing the fluid container into...
8100103 Reciprocating piston cylinder head cover having an integrated fluid exchange rotary disc valve  
A cylinder head cover for a reciprocating compressor cylinder. The cover includes a first plate having a first and second channel in a surface of the first plate. The first and second channels...
8096791 Suction valve for a small hermetic compressor  
A suction valve for a small hermetic compressor formed as a flexible vane having a fixed end portion, a bending median portion and a sealing end portion with the distance between the external edge...
8074679 Y-type fluid end with replaceable suction module  
A fluid end assembly for a high pressure pump receives a fluid from a fluid supply manifold and supplies the fluid to an outlet manifold. The assembly includes a housing with a removable suction...
8075287 Fluid pump having plunger and method of monoblock casting for housing of the same  
A fluid pump includes a plunger that is movable to pressurize fluid drawn from an inlet into a compression chamber. The plunger is substantially axially movable in a cylinder. Fluid pressurized in...
8057200 Structure of discharging refrigerant for linear compressor  
The present invention discloses a linear compressor in which a piston is linearly reciprocated inside a cylinder, for sicking a refrigerant into a compression space between the piston and the...
7959416 Suction system for a refrigeration compressor  
A suction system for a refrigerator compressor includes a suction muffler with an outlet tube mounted to a valve plate and a cylinder head having a reinforced portion in the area of the valve...
7934913 Piston compressor, particularly a hermetic refrigerant compressor  
The invention concerns a piston compressor, particularly a hermetic refrigerant compressor, with a compression chamber, which is limited by a valve plate arrangement having a valve plate with a...
7922459 Pressure generation device  
A pressure-generating device includes an axle hub having a rotary shaft portion supported rotatably in a nonrotatable cylindrical support portion via bearings; a piston attached to the rotary...
7850437 Multi-port suction reed valve with optimized tips  
A reed valve having a plurality of tips and associated recesses is provided as a compressor suction valve with each valve tip coacting with a suction port. The recesses are located in the housing...
7771176 Micropump and method for the production thereof  
The invention relates to a micropump comprising a pump membrane (5) which can be moved by modifying the volume of a pump chamber which is adjacent to the pump membrane (5) and a base part (1),...
7762796 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...
7635257 High pressure pump having plunger  
A high pressure pump draws fluid from a fluid inlet into a compression chamber through an inlet chamber. The high pressure pump has a fluid chamber that communicates with the fluid inlet via the...
7632077 Inclined plate-type compressors and air conditioning systems including such compressors  
An inclined plate-type compressor includes a cylinder head, a discharge chamber having an annular shape and disposed along an outer circumferential portion of the cylinder head, a suction chamber...
7621728 Pump inlet manifold  
A reciprocating piston/plunger pump inlet manifold includes an elongated cylindrical manifold member closable at opposite ends by transverse end caps connected to the manifold member by releasable...
7549861 Syringe for a combined dental irrigator and vacuum device  
A combined irrigator-vacuum device includes a pump assembly mountable over a syringe or device body. The device body has a dividing wall which divides the body into a clean chamber and a waste...
7497230 Priming pump with reed valve  
A fluid priming pump in combination with a reed valve for the control of incoming and exiting fluid flow is disclosed. The fluid priming pump includes a pump body and a movable plunger with the...
7455506 Injection moldable piston rings  
An oil-less/oil-free air brake compressor comprising a bore, a piston positioned for reciprocating in the bore, the piston having an annular recess and a rigid polymeric piston ring received...
7390178 Compressor  
A compressor comprises a plurality of pairs of a cylinder bore and a piston moving reciprocally in the cylinder bore, a valve plate provided with a plurality of outlet holes for leading...
7390176 Multi-port suction reed valve with optimized tips  
A reed valve having a plurality of tips and associated recesses is provided as a compressor suction valve with each valve tip coacting with a suction port. The recesses are located in the housing...
7390177 Piston compressor, particularly a hermetic refrigerant compressor  
The invention concerns a piston compressor, particularly a hermetic refrigerant compressor, with a compression chamber, which is limited by a valve plate arrangement having a valve plate with a...
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;...
7367789 Device for maintaining a static seal of a high pressure pump  
A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first...
7364412 System, method, and apparatus for valve stop assembly in a reciprocating pump  
A reciprocating pump assembly has a pump housing with a crankshaft. A plunger is connected to the crankshaft for pumping a fluid through a cylinder. The cylinder has a fluid inlet port and an...
7296980 Intake valve for a high-pressure pump, in particular for internal combustion engine fuel  
An intake valve for a high pressure pump for internal combustion engine fuel having a valve body having a seat with which cooperates a shutter kept closed by a first spring of substantially...
7284971 Hermetic compressor  
A hermetic compressor comprising a discharge valve, and a stopper for restricting an opening degree of the discharge valve. The discharge valve includes a body portion configured to cover a...
Matches 1 - 50 out of 363 1 2 3 4 5 6 7 8 >