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Patent Searching and Data


Matches 101 - 150 out of 3,229

Document Document Title
WO/2015/003539A1
Multiple helical teeth (1, 2, 7, 8) are disposed on an outer diameter, an inner diameter, or a contacted surface of the outer diameter and the inner diameter of an interference designed shaft rubber seal provided with fixing rings and an...  
WO/2014/075658A3
The invention relates to a vacuum pump (1) for a motor vehicle, comprising a pump housing surface (8), on which a noise reduction hood (30) delimiting a sound damping volume is mounted. The invention is characterized in that the noise re...  
WO/2014/191362A1
The spindle compressor is a two-shaft rotary displacement machine which operates without operating fluid. The compressor has a compressor housing which has an inlet (34) and an outlet (35) for a gaseous medium to be pumped and a working ...  
WO/2014/183204A1
A method and system is provided for pressure balancing one or more seals in machines such as expanders and/or compressors using the process fluid which is being expanded or compressed to provide the pressure for pressure balancing the ot...  
WO/2014/083305A3
The present invention relates to a multi-stage vacuum pump comprising: first and second half-shell stator components (102, 104) defining a plurality of pumping chambers (106) to (116) and for assembly together along respective longitudin...  
WO/2014/164830A1
The present invention relates to compression based engine boosting systems, and, more particularly, to a supercharger configuration for higher pressure applications.  
WO/2014/163757A1
A thermal actuator for a rotating shaft shutdown seal that has a piston with a portion of its axial length enclosed within a chamber shell with a material that expands upon a rise in temperature. The portion of the actual length of the p...  
WO/2014/144617A1
Devices and methods for maintaining lubrication of a shaft seal of an open-drive compressor that is operating in a vacuum condition. The external side of the shaft seal allows retention of a volume of lubricant for extending the lifespan...  
WO/2014/138870A1
A rotary device for use with a fluid, having a housing, a rotor, and a vane having a respectively associated wiper. The housing has a tubular surface defining in part a tubular volume, the tubular volume segregated into at least a pumpin...  
WO/2014/132969A1
 Provided is a vane-type rotation device which can suppress damage to the inner peripheral surface of a housing and a tip part of a vane, and can prevent seal leakage from occurring. The present invention comprises: a tubular housing; ...  
WO/2014/117746A1
A rotor seal structure (10), comprising a rotor (11), at least one first seal sheet (14), and at least one abutting piece (151, 152); the rotor is provided with at least one side groove (111, 112); each side groove (111, 112) is provided...  
WO/2014/110930A1
A scroll compressor (100) comprises an orbiting scroll component (160); a fixed scroll component (150); sealing components (PS1, PS2, PS3, PS4, PS5, PS6), wherein the sealing components match a concave part (158) on the orbiting scroll c...  
WO/2014/103974A1
Provided is a gas compressor that supplies high-pressure back pressure to the vanes in the final stage of the compression step. A compressor main body (60) is provided in a housing (10) and has: a rotor (50) in which vane grooves (59) ar...  
WO/2013/068531A3
The controllable vane compressor according to the invention has the advantages that pressure loading of the inner circular-arc-shaped vane surfaces (35) is produced by the selected minimal spring pressure, which acts even at standstill, ...  
WO/2014/004141A3
A supercharger assembly has a rotor housing defining a chamber. A rotor is within the chamber and has an end with an end face. A seal has a seal face adjacent the end face. The seal face and the end face have complex topographies configu...  
WO/2013/165876A3
A positive displacement pump assembly includes a rotor housing defining a rotor cavity, and an end plate configured to at least partially close one end of the rotor cavity. Rotors are supported on and fixed to rotor shafts and extend thr...  
WO/2013/092456A3
Scroll compressors are used for the compression of gases. The disadvantage of said scroll compressors is a very restricted power modulation along with poor energy efficiency, and the aim of the invention is to improve said power modulati...  
WO/2014/050007A1
This rotary compressor (1) is provided with: a cylinder (32) extending in the vertical direction; a piston (35) housed in the cylinder (32) and forming a compression chamber (40) against the cylinder (32); a front head (33) that occludes...  
WO/2014/041680A1
At the interior of the housing (20) of this oil-cooled screw compressor (10), a separated gas supply pathway (59) is delineated for supplying separated gas to a separated gas supply gap (58) delineated between a first sealing unit and se...  
WO/2014/025025A1
This rotary compressor accommodates an electric motor and a compression mechanism that is linked to the electric motor via a rotary shaft in a sealed case. The compression mechanism is provided with: a cylinder having a cylinder chamber;...  
WO/2014/018505A1
Improved seal components for compressors, such as scroll compressors, are provided. Such seal components have a molded composite on a seal plate that is preformed, which serves as an improved face seal for floating seal assemblies. The p...  
WO/2014/006363A1
The present invention provides a scroll pump 60 comprising: a scroll mechanism 62 having an orbiting scroll 64 and a fixed scroll 66; a drive shaft having a concentric shaft portion 68 and an eccentric shaft portion 70 connected to the o...  
WO/2014/008500A1
A sealing joint for a compressor casing, such as a compressor casing for a centrifugal compressor of a chiller, is provided. The sealing joint may be configured to have a first cover and a second cover. A first mating surface of the firs...  
WO/2014/004141A2
A supercharger assembly has a rotor housing defining a chamber. A rotor is within the chamber and has an end with an end face. A seal has a seal face adjacent the end face. The seal face and the end face have complex topographies configu...  
WO/2013/050488A3
A pump fitting has an inlet adaptor (10) for connection to an outlet (39) of a container (38) of fluid and including an inlet passage (10), an outlet passage (11) for fluid and a pump housing (12) between the inlet passage (10) and the o...  
WO/2013/142418A1
A scroll compressor that includes a housing and scroll compressor bodies disposed in the housing as well as a method of operation thereof is provided. The housing is separated into different chambers by a separator. One of the scroll bod...  
WO/2012/127198A3
The present invention relates to a multi-stage vacuum pump comprising: first and second half-shell stator components (102). (104) defining a plurality of pumping chambers (6) to (116) and for assembly together along respective longitudin...  
WO/2012/116779A3
The invention relates to a rotary slide valve (1) having a flat main body (10) which when used properly is mounted and/or disposed on a rotor (2) within a stator (3) and comprises a first edge (12, 12') facing a first running surface (14...  
WO/2013/067099A1
A compressor for compressing refrigerant in a refrigerant circuit includes a housing defining a compression chamber. A screw rotor is mounted within the housing and configured to form a pocket of high pressure refrigerant and a pocket of...  
WO/2013/057946A1
A rotary compressor having two cylinders (6a, 6b), and two compression elements (4a, 4b) arranged on either side of a partition plate (5), with these compression elements having rolling pistons (8) inside the cylinders (6), and a cranksh...  
WO/2013/053062A1
A pump comprises a housing having an inner contour wall defining a fluid chamber. A rotor mechanism is positioned within the fluid chamber and comprises a belt and a rotatable rotor assembly. The belt is mounted to the rotor assembly. A ...  
WO/2012/004762A3
A pump (1) has a rotor (5) eccentrically rotating within a pumping chamber (20) and a slot (6) housing a pair of vanes (7A, 7B; 70; 71; 72) with a hook-like outline, which are radially slidable with respect to each other and to the slot ...  
WO/2013/018272A1
To provide a pump system for gas exhaust that makes it possible to minimize contamination of process gas with seal gas, and to reduce the amount of seal gas used. This pump system for gas exhaust has a main pump and a sub-pump. The main ...  
WO/2013/008399A1
Provided is a rotary mechanism that, in a gas exhaust pump, can secure safety of rotation even if the gap between a rotary shaft and a seal housing is markedly reduced compared to conventional gaps, and can also suppress the amount of se...  
WO/2012/131317A1
The present invention relates to a scroll compressor (10) which comprises: an orbiting scroll (20) having an orbiting scroll wall (35) extending axially from an orbiting scroll plate (37) towards a fixed scroll; a fixed scroll (22) havin...  
WO/2012/128267A1
The present invention provides an engine pump that has: a housing (1) having a cylinder space; an output shaft unit (2) formed with one or more pistons (4) capable of constant velocity true-circle rotation within the cylinder space, a ri...  
WO/2012/111863A1
The present invention relates to an apparatus for fixing a dust seal of a scroll compressor including a fixed scroll disposed at the upper portion thereof and an orbiting scroll coupled to the lower portion of the fixed scroll so as to o...  
WO/2012/096056A1
A scroll fluid machine having a rotating scroll for which rotating laps are arranged vertically on a panel that is supported in a rotatable manner on a drive shaft, and a stationary scroll which is provided opposing the rotating scroll a...  
WO/2012/096057A1
A dual-shaft rotor pump having a casing, two rotary shafts provided within the casing, two rotors provided respectively on the two rotary shafts and capable of rotating in mutually opposing directions, and shaft bearings and shaft seals ...  
WO/2012/086245A1
[Problem] To provide a hermetically sealed rotary compressor configured so that the joint between a cup and a bearing can be sealed without the use of a ring, etc. [Solution] An upper bearing (16A) has a stepped section (41), and the cor...  
WO/2011/128502A3
The invention relates to a liquid ring pump (1) for generating vacuum and for pumping a flow of sewage in a vacuum sewage system. The liquid ring pump comprises in the direction of the flow of sewage a pump inlet (11), an inlet chamber (...  
WO/2011/058339A3
Vacuum pump for pumping gas from a process chamber, the pump comprising: a rotor supported for rotation in a pumping chamber by a drive shaft, the shaft extending through a shaft bore in a wall of the pumping chamber extending transverse...  
WO/2011/018293A3
The invention relates to a vacuum pump having a crucible-shaped housing, a rotor rotatably and eccentrically mounted in the housing, at least one blade mounted in or on the rotor, and a housing cover closing the crucible-shaped housing, ...  
WO/2011/088290A3
A gas compression system includes a compressor operable to discharge a mixed flow of gas and lubricant, a separator tank including an opening having a first face, and a separator element including a disk portion having a second face and ...  
WO/2011/018598A3
The present invention relates to a scroll pump (10) comprising two scrolls (20, 22) which are co-operable for pumping fluid from an inlet (24) to an outlet (26) on relative orbiting motion of the scrolls. Each scroll comprises a scroll b...  
WO/2011/110019A1
A rotary compressor is provided with a motor portion (22) and a compression mechanism portion (21) within a hermetic housing (1). The compression mechanism portion (21) includes more than one cylinder (23). In the cylinder (23) is provid...  
WO/2011/031766A3
A scroll compressor having a first compressor body with a first base, a first rib that projects from the first base, and a discharge port. A second compressor body has a second base and a second rib projecting from the second base. The f...  
WO/2011/058339A2
The present invention provides a vacuum pump for pumping gas from a process chamber, the pump comprising: a rotor supported for rotation in a pumping chamber by a drive shaft, the shaft extending through a shaft bore in a wall of the pum...  
WO/2011/046591A1
An internal combustion engine (1 1) drivably connected to a variable displacement and variable internal compression ratio supercharger (18) that supplies varying amounts of air to the engine air intake manifold (12) that can range select...  
WO/2011/037178A1
A dry vacuum pump is provided with pump chambers (10A – 10E) through which gas passes, an oil chamber (20) which is provided adjacent to the pump chamber (10E) and in which oil is present, rotating shafts (30) which penetrate through th...  

Matches 101 - 150 out of 3,229