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7621729 Multistage compression type rotary compressor  
An object is to provide a high inner pressure type multistage compression rotary compressor capable of avoiding beforehand generation of vane fly of a second rotary compression element and...
7611343 Multistage compression type rotary compressor  
An object is to provide a high inner pressure type multistage compression rotary compressor capable of avoiding beforehand generation of vane fly of a second rotary compression element and...
7611342 Multistage compression type rotary compressor  
An object is to provide a high inner pressure type multistage compression rotary compressor capable of avoiding beforehand generation of vane fly of a second rotary compression element and...
7556484 Compressor having a small-width portion and a large-width portion in an inner circumferential sliding surface of a swinging roller  
A piston 4 has a generally cylindrical-shaped roller and a blade that is integrally formed with the roller. The piston 4 performs a swing motion while orbitally revolving within a cylinder...
7520733 Multistage compression type rotary compressor  
There is provided an internal intermediate pressure multistage compression type rotary compressor capable of reducing a height dimension while reducing the amount of oil to be discharged outside....
7491042 Multistage compression type rotary compressor  
An object is to provide a high inner pressure type multistage compression rotary compressor capable of avoiding beforehand generation of vane fly of a second rotary compression element and...
7117841 K.Engine  
K. Engine (KE) is rotary internal combustion engine, combination Reciprocating Engine (RE) and Gas Turbine (GT) comprising coaxially separate piston rotary compressor and turbine having housings...
7101161 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit  
An object of the present invention is to provide a method for manufacturing a multi-stage compression type rotary compressor which can avoid the replacement of parts to be used as much as possible...
7101162 Compressor  
A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second...
7044725 Lever-mechanism motor or pump  
A machine, such as an engine, which includes a cylinder ( 1 ), an essentially cylindrical piston ( 5 ) set on bearings and equipped with an eccentrically-set shaft ( 11 ), an inlet port or valve (...
6827564 Rotary compressor  
A rotary piston displacement device having an impeller housng with an approximately cylindrical receiving chamber in which an approximately cylindrical piston, which has a smaller outside diameter...
6824367 Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same  
A multi-stage compression type rotary compressor 10 is provided with an electrical-power element 14 , the first and second rotary compression elements 32, 34 driven by a rotary shaft 16 of...
6732542 Defroster of refrigerant circuit and rotary compressor  
A defroster restrains a vane jump that takes place when an evaporator is defrosted in a refrigerant circuit using a so-called internal intermediate-pressure type double-stage compression rotary...
6322341 Fluid pressure driven rotary actuator and method of operating the same  
A hydraulic rotary actuator assembly includes a rotatable drive assembly disposed about and rotatable about a longitudinal axis of the actuator and a stator assembly disposed about the rotatable...
6283728 Gas powered rotary engine and compressor  
A plurality of rotary assemblies driven by gas pressure having internal cam activated retractable gates selectively coupled to a rotary compressor. The rotary compressor is selectively coupled...
6168401 Hydraulic conveying device  
An hydraulic conveying device, in particular for conveying diesel fuel for an internal-combustion engine in motor vehicles, with a housing provided with at least one conveying chamber as well as a...
5885065 Method and pump for pumping liquid containing solids  
A pump for pumping a liquid containing solids comprises a housing having a first end and second end and an interior pump chamber. An inlet pipe leads to the pump chamber through the first end, and...
5833444 Fluid driven motors  
There is disclosed a fluid driven motor of particular use, for example, in drilling apparatus or in powering underwater excavation apparatus. Known motors suffer from a number of problems, e.g....
5785509 Wellbore motor system  
A drilling motor has been developed with a hollow tubular stator having at least one rod recess therein and an inlet port therethrough corresponding to each of the at least one rod recess; a rod...
5518379 Downhole motor system  
A drilling motor has been developed with a hollow tubular stator having at least one rod recess therein and an exhaust port therethrough corresponding to each of the at least one rod recess; a rod...
5242280 Rotary type multi-stage compressor with vanes biased by oil pressure  
A multi-stage rotary type compressor is constituted in such a manner that an electric motor and a plurality of compression elements to be driven by the electric motor are disposed in a closed...
5242288 Rotary engine or pump with a round toroidal cylinder and pistons  
An engine or pump is described which has a round cylinder in cross section, the surface of the cylinder being a round toroidal tube in the rotary direction. The cylinder is made of two equal parts,...
4819594 Reversible rotary internal combustion engine  
A reversible rotary internal combustion engine comprising a stator which defines a cylindrical chamber (43), a drive shaft (1) extending coaxially through the chamber, a rotor (2) comprising a...
4664608 Rotary compressor with reduced friction between vane and vane slot  
A hermetically sealed rotary refrigerant compressor, comprising a compression chamber, a roller eccentrically rotatable in the chamber, and a vane slidably mounted in a slot in the wall of the...
4345886 Rotary compressor with vanes in the housing and suction through the rotor  
A rotary compressor for compressing fluid. A housing having a cylindrical internal cavity is provided with vanes and delivery ports. A rotor is rotatably mounted in the housing. The rotor has a...
4086042 Rotary compressor and vane assembly therefor  
A rotary compressor is provided in which the space between the rotor and the encompassing housing wall is separated into suction and discharge spaces by reciprocating vane assemblies, each of which...
4009690 Rotary internal combustion engine  
A rotary internal combustion engine comprising an elongated rotor having an oval shaped cross-section secured to a compartmentalized shaft rotatably disposed in an elongated cylindrical shaped bore...
3995601 Rotary internal combustion engine  
A rotary internal combustion engine including a single shaft supporting two rotors recessed to form working chambers in adjacent sections of a housing with a cylindrical interior, one rotor...
3924976 Engine  
A rotary fluid engine powered by externally pressurized working fluid including a rotor and externally plurality of swinging arms positioned to engage with and impart a torque force to the rotor...
3923431 Sealed slide plates for rotary internal combustion engine  
A rotary internal combustion engine including a stator having a circular chamber within which is coaxially disposed a shaft supporting an off-center circular rotor, the diameter of the rotor being...
3914075 Sliding partition rotary engine with rectilinear seals  
The invention relates to engines of the kind having rotors and being supplied by a fluid under pressure, and is especially directed to an engine of this type capable of being coupled to a closed...
3852000 FLEXIBLE ROTOR FOR FLUID PUMPS  
A fluid pump comprises a chamber the interior of which has parallel opposed walls and a peripheral wall, a rotor eccentrically mounted within the chamber and having two opposed faces engaging with...
3782867 FLUID POWER CONVERTER  
A fluid power converter, such as a hydraulic fluid pump or motor, having a rotor and stator each having sealing vanes and in which the stator includes a contoured periphery consisting of harmonic...
3759640 ROTARY ENGINE VALVE MEANS  
This invention provides a valve system for directing charges of pressurized working fluid into the expandable chambers of a rotary engine, for operation against a pivoted power arm associated with...
3741170 START-UP MECHANISM FOR ROTARY COMBUSTION ENGINE  
There is disclosed a start-up system for a rotary internal combustion engine of a type having a plurality of swinging arms pivotally supported about the periphery of a rotor housing with a rotor...
3707073 ROTARY PISTON ENGINE  
This disclosure relates to an internal combustion engine that uses a rotary piston for overcoming the disadvantages of currently available engines. The disclosed engine is simple, and may be used...
3692439 FLUID PRESSURE RESPONSIVE MECHANISM IN A FLUID PRESSURE DEVICE  
Fluid pressure responsive mechanism in a fluid pressure device including first and second internal fluid chamber housing means and fluid pressure operating means, wherein said fluid pressure...
3652192 SEALED CONVEYING APPARATUS  
A conveyor screw is mounted in a working chamber to convey a fluid material, and is sealed by a row or stack of sealing elements extending along a surface line of the conveyor screw perpendicular...
3649141 ROTARY PUMP WITH INTEGRAL ROTOR CONSTRUCTION  
A rotary pump of unitary rotor construction disposed within a housing having a cylindrical inner surface. A tubular shaft extends from one end of the rotor and supplies fluid to the axis of the...
3639092 APPARATUS FOR CONVERTING HYDRAULIC OR PNEUMATIC ENERGY INTO KINETIC ENERGY OR VICE VERSA, SUCH AS A ROTARY MULTICHAMBER VANE-TYPE MOTOR OR PUMPS  
Apparatus for converting hydraulic or pneumatic energy into kinetic energy and vice versa. An inner element carrying sliding vanes is mounted in an outer element defining a plurality of recesses...
3463090 FLUID PUMP  
3289652 Rotary displacement machine  
3246573 Fluid driven motor  
3194122 Hydraulic cam motor vane switching system  
3130902 Refrigerator compressor  
3128708 Pump  
2937715 Lubrication system for gas compressor  
2900961 Linear fluid actuator utilizing vanes  
2898034 Compressor with dual compression chambers  
2896409 Rotary engine  
Matches 1 - 50 out of 59 1 2 >