Matches 1 - 49 out of 49


Match Document Document Title
US20090238707 VANE PUMP  
A vane pump having a pump containing a rotor driven via a drive shaft with the rotor having a number of generally radially extending grooves distributed over its circumference each of which...
US20110223050 VANE PUMP APPARATUS  
Disclosed herein is a vane pump apparatus. The disclosed vane pump apparatus comprises a housing having an outlet channel; a reservoir tank which stores working oil and which is coupled to the...
US20090185937 POSITIVE-DISPLACEMENT ROTARY MACHINE  
The invention relates to rotary machines provided with nonparallel axes of a rotor and pistons. The inventive positive-displacement rotary machine comprises a body, the working surface of which is...
US20050031479 Rotary fluid machine  
A rotary fluid machine is provided that includes a rotor chamber (14) formed in a casing, a rotor (41) rotatably housed within the rotor chamber (14), a plurality of vane channels (49) formed...
US20140178234 INTERNAL ROTOR-TYPE FLUID MACHINE  
An internal rotor-type fluid machine includes a rotary shaft, a rotor which rotates together with the rotary shaft, a support portion which is provided on the rotary shaft or the rotor, and which...
US20100316520 LIQUID PUMP  
The invention relates to a liquid pump having a pump housing, a pump unit for generating a pilot pressure, a drive shaft used to drive the pump unit and guided out of the pump housing on a...
US20070286758 Screw Compressor Seal  
A compressor includes a housing and one or more working elements. A muffler is located downstream of the discharge plenum. A centerbody is located in the discharge plenum upstream of the muffler...
US20070292297 Vane Pump Consisting A Two-Part Stator  
A rotary displacement pump, comprising: (a) a stator (42); (b) a rotor including a shaft portion (8) and a radially protruding web (12) having a configuration of an undulatory disk type; (c) a...
US20080240964 SHAFT SEAL DEVICE FOR OIL-FREE ROTARY COMPRESSOR  
A shaft seal device is provided, with which an optimum radial clearance is always maintained between the inner circumferential surface of a carbon ring and an outer circumferential surface of a...
US20090004036 Helical Screw Compressor  
A screw compressor with two rotors held in a rotor housing has sealing arrangements 11, 11′ to seal the pressurized side shaft pin of the rotors, wherein each sealing arrangement has a number of...
US20080050261 CONTACTING BEARING PROTECTOR  
A contacting seal device provides a seal between equipment housing and an equipment shaft. The contacting seal device includes a stator that can be sealed to the equipment housing by a first...
US20120164015 WATER INJECTION TYPE SCREW FLUID MACHINE  
A water-lubrication type screw fluid machine has a first non-contact seal, a second non-contact seal and a lip seal disposed between a rotor chamber and a bearing for a rotor shaft. The bearing is...
US20100074785 COMPRESSOR  
A compressor includes a screw rotor and a gate rotor arranged to form a compression chamber. The screw rotor has an outer circumferential surface with at least one groove portion. The gate rotor...
US20150093278 ROTARY-PISTON ENGINE  
The present invention relates to an engine or pump called rotary piston engine or pump, comprising a shape of revolution F relative to a delta axis, and rotatably movable about said delta axis in...
US20110311385 Vane Pump and Vapor Leakage Check System Having the Same  
A vane pump includes a housing defining a pump chamber; a rotor rotatably arranged in the pump chamber; and a motor to rotate the rotor. An imaginary plane is defined to bisect the pump chamber in...
US20110135523 SEALED COMPRESSOR WITH MOTOR STANDARD SPACER PROVIDING BEARING MOUNT  
A spacer is positioned between an outer periphery of a motor stator, and the inner periphery of a center shell for a sealed compressor. The spacer allows a relatively small diameter motor to be...
US20090148329 VANE PUMP AND VAPOR LEAKAGE CHECK SYSTEM HAVING THE SAME  
A vane pump includes a motor, a rotor rotated by the motor, a first casing having a pump chamber accommodating the rotor and a first flat part in a periphery of an opening of the pump chamber, a...
US20080141973 Hybrid Cycle Rotary Engine  
An internal combustion engine includes in one aspect a source of a pressurized working medium and an expander. The expander has a housing and a piston, movably mounted within and with respect to...
US20100061872 Gear Pump  
A gear pump includes a drive shaft, a rotatable pump element mounted on the drive shaft, a side wall member disposed on one side of the pump element, and formed with a shaft hole through which the...
US20090314353 APPARATUS AND A METHOD FOR REGULATION OF THE ENERGY POTENTIAL IN A FLUID COLUMN LOCATED WITHIN A PIPELINE  
The present invention describes an apparatus (1) and a method for use in regulation of the energy potential in a fluid column located within a pipeline (13), the apparatus (1) including two...
US20080232993 Fastener member and gas compressor using the same  
In a gas compressor, a fastener part is fastened by a fastener member comprised of a bolt coated with a zincate bath and a gasket, any leakage from the fastener member is prevented, the gas...
US20080240963 ROTOR SHAFT SEALING STRUCTURE FOR OIL-FREE ROTARY COMPRESSOR  
A rotor shaft sealing structure of an oil-free rotary compressor is provided, with which is reduced a risk of occurrence of lubrication oil intrusion into the compression chamber (9) of the...
US20080253914 LIQUID INJECTION TYPE SCREW COMPRESSOR  
A liquid injection type screw compressor in which, in a compression stroke of an working space formed by male and female rotors, liquids such as oil or water is prevented from leaking from the...
US20080219875 Magnetic drive vane pump  
A magnet drive rotary vane pump has a casing with a pump cavity. A rotor carrying a plurality of vanes is disposed within the pump cavity to be rotatable about an eccentric axis with respect to...
US20130209306 Rotary Positive Displacement Machine  
Rotary displacement machines are known for their uses as compressors, expansion engines and the like. Many comprise two or more rotors mounted for simultaneous rotation within a casing, with...
US20120100027 Internal-Rotation Type Gear Pump and Method of Assembling and Repairing an Internal-Rotation Type Gear Pump  
A method of assembling and repairing an internal-rotation type gear pump has a preparing step, a disassembling step, a taking step, a repairing step and an assembling step. The preparing step...
US20150071806 Rotary Vane Air Motor with Improved Vanes and Other Improvements  
A rotary vane air motor comprises a rotor, stator and vanes. The rotor has slots for the vanes, and the vanes may move between a retracted position and a contact position in which the vanes...
US20130202470 Rotary Vane Air Motor with Improved Vanes and Other Improvements  
A rotary vane air motor comprises a rotor, stator and vanes. The rotor has slots for the vanes, and the vanes may move between a retracted position and a contact position in which the vanes...
US20090304540 PD Pumps with a Common Gearbox Module and Varying Capacities and Easy Access to Mechanical Seals  
Rotary lobe pump and circumferential piston pump designs are disclosed where the drive and driven shafts are detachably connected to their respective rotors. The rotors are disposed in a pump or...
US20130343942 ROTARY COMPRESSOR  
A rotary compressor (100) includes a compression mechanism (3), a motor (2), a suction path (14), a back-pressure chamber (18), a return path (16), an inverter (42), and a controller (44). A check...
US20120051958 COMPRESSOR WITH LIQUID INJECTION COOLING  
A positive displacement compressor designed for near isothermal compression. A rotor includes a curved sealing portion that coincides with a in an interior rotor casing wall. Liquid injectors...
US20130011289 IMPROVED FLUID COMPRESSOR AND/OR PUMP ARRANGEMENT  
The present invention relates to a compressor or pump unit for the production or flow of compressed fluid and more particularly to a new uniquely designed compressor which has the capabilities to...
US20150152865 COMPACT STRUCTURE OF GEAR PUMP DESIGNED TO MINIMIZE LOSS OF PUMPING TORQUE  
A gear pump apparatus is equipped with a pump and a sealing mechanism which is made up of an outer member, an inner member, and a rubber member fit between the outer and inner members. The inner...
US20130129547 ROTARY ENGINE EXHAUST APPARATUS AND METHOD OF OPERATION THEREFOR  
The invention comprises a rotary engine method and apparatus configured with an exhaust system. The exhaust system includes an exhaust cut or exhaust channel into one or more of a housing or an...
US20120288391 Heat Engine  
The present invention relates to a heat engine having a housing. A generally triangular shaped rotor can drive an offset crank as it eccentrically rotates within the housing. Two inlets with...
US20120051960 ROTARY PUMP DEVICE  
A rotary pump device is provided in which a drive shaft is inserted into a center hole of a cylinder that forms rotor chambers, and into outer rotors and inner rotors of rotary pumps. In the...
US20140271296 No Corner Seal Rotary Vane Actuator  
The subject matter of this specification can be embodied in, among other things, a rotary vane actuator. A rotor assembly includes longitudinal vanes disposed radially on a central shaft, with...
US20120141314 VACUUM PUMP  
The invention relates to a vacuum pump having a cup-shaped housing, a rotor, eccentrically mounted for rotation in the housing, at least one blade mounted in or on the rotor, and a housing cover...
US20100270747 NON-METALLIC BRUSH SEAL  
The invention provides, in one aspect, a brush seal comprising brush seal bristles made up of component brush seal filaments. The component brush seal filaments comprise a polyether ketone...
US20120224986 ROTARY VANE COMPRESSOR  
A rotary vane compressor includes a cylinder chamber having an ellipsoidal inner wall shape, a rotor rotatably provided in the cylinder chamber, a vane held in the rotor so as to contact with an...
US20110123381 COMPRESSOR  
The present invention provides a compressor, comprising: a stator (220); a cylinder type rotor (230) rotating within the stator (220) by a rotating electromagnetic field from the stator (220),...
US20100239448 FKM OR FFKM MULTIPLE LAYERS SEAL  
A vacuum pump comprises two stator components and a seal located between the components to provide a fluid-tight seal between the components. The seal comprises an annular plastics tube housing an...
US20120051959 FLUID MACHINE AND SEAL MEMBER USED FOR THE SAME  
An O-ring has a shape including a first portion that is arranged side by side with a suction port in an axial direction, a second portion that is arranged side by side with a suction port, and a...
US20130064704 ROTATION DEVICE INCLUDING SEAL STRUCTURE  
A seal member is configured so that an annular rubber member is disposed in an annular storage chamber of a resin annular member. Thus, the rubber annular member is not directly in contact with a...
US20170152852 ROTARY FLUID MACHINERY AND METHOD FOR ELIMINATING AXIAL ROTOR DISPLACEMENT  
An externally-supported rotary fluid machinery and a method for eliminating axial rotor displacement. The fluid machinery includes a box body, an air cylinder and a rotor, wherein the rotor is...
US20170067463 PUMP DEVICE  
The purpose of the present invention is to suppress the occurrence of unevenness in a rotor of an internal gear pump, suppress the formation of gaps between the end surfaces (side surfaces) of an...
US20170016446 OIL-FREE SCREW COMPRESSOR  
An oil-free screw compressor with good assemblability of a shaft seal device that reduces leakage of a compressed gas, where the oil-free screw compressor accommodates male and female screw rotors...
US20160153450 PUMP FOR METERING A LIQUID ADDITIVE FOR A SELECTIVE CATALYTIC REDUCTION DEVICE  
A device providing a dosed supply of a liquid includes: a pump configured to deliver the liquid and having a pump housing with an inlet and an outlet; an eccentric on the pump housing; and a...
US20150300352 PUMP WITH MECHANICAL SEAL ASSEMBLY  
A sliding vane, positive displacement pump is provided which includes a dual mechanical seal that protects against leakage from a pump chamber while also reducing slip across rotor end faces. The...

Matches 1 - 49 out of 49