WO/2015/003539A1	 INTERFERENCE DESIGNED SHAFT RUBBER SEAL PROVIDED WITH FIXING RINGS AND ARRANGEMENT OF HELICAL TEETH
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	 VACUUM PUMP FOR A MOTOR VEHICLE
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	 SPINDLE COMPRESSOR WITH HIGH INNER COMPRESSION
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	 METHODS AND SYSTEMS FOR SEALING ROTATING EQUIPMENT SUCH AS EXPANDERS OR COMPRESSORS
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	 VACUUM PUMP
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	 SUPERCHARGER
The present invention relates to compression based engine boosting systems, and, more particularly, to a supercharger configuration for higher pressure applications.
WO/2014/163757A1	 PUMP SEAL WITH THERMAL RETRACTING ACTUATOR
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	 SHAFT SEAL FOR AN OPEN-DRIVE COMPRESSOR
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	 OVAL CHAMBER VANE PUMP
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	 VANE-TYPE ROTATION DEVICE
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	 ROTOR SEAL STRUCTURE
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	 SCROLL COMPRESSOR
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	 GAS COMPRESSOR
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	 CONTROLLABLE VANE COMPRESSOR
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	 SUPERCHARGER ASSEMBLY WITH ROTOR END FACE SEAL AND METHOD OF MANUFACTURING A SUPERCHARGER ASSEMBLY
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	 POSITIVE DISPLACEMENT PUMP ASSEMBLY WITH MOVABLE END PLATE FOR ROTOR FACE CLEARANCE CONTROL
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 COMPRESSOR HAVING AN AXIALLY SLIDABLE SCROLL SPIRAL
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	 ROTARY COMPRESSOR
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	 OIL-COOLED SCREW COMPRESSOR SYSTEM AND OIL-COOLED SCREW COMPRESSOR
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	 ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
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	 INJECTION MOLDED SEALS FOR COMPRESSORS
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	 SCROLL PUMP
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	 SEALING JOINT FOR A COMPRESSOR CASING
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/2013/050488A3	 PUMP FITTINGS AND METHODS FOR THEIR MANUFACTURE
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	 FLOATING SCROLL SEAL WITH RETAINING RING
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	 VACUUM PUMP WITH LONGITUDIAL AND ANNULAR SEALS
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	 ROTARY SLIDE VALVE
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	 HIGH PRESSURE SEAL VENT
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	 ROTARY COMPRESSOR HAVING TWO CYLINDERS
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	 BELT AND SUPPORT FOR A ROTOR MECHANISM IN A ROTARY APPARATUS AND ROTARY APPARATUS COMPRISING SAME
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	 PUMP WITH A VANE ROTOR
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	 PUMP SYSTEM FOR GAS EXHAUST AND GAS EXHAUST METHOD
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	 ROTARY MECHANISM OF GAS EXHAUST PUMP, METHOD FOR PRODUCING SAME, GAS EXHAUST PUMP PROVIDED WITH SAID ROTARY MECHANISM, AND METHOD FOR PRODUCING SAME
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...
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	 3-STROKE/6-STROKE ROCKET JET ENGINE
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	 APPARATUS FOR FIXING A DUST SEAL OF A SCROLL COMPRESSOR
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	 SCROLL FLUID MACHINE
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	 DUAL-SHAFT ROTOR PUMP
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	 HERMETICALLY SEALED ROTARY COMPRESSOR
[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	 LIQUID RING PUMP AND METHOD FOR OPERATING A LIQUID RING PUMP
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	 CORROSION RESISTANT SHAFT SEALING FOR A VACUUM PUMP
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...
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	 FORMED SEAL RING FOR A LIQUID GAS SEPARATING ELEMENT
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 ...
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...
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	 OPTIMIZED DISCHARGE PORT FOR SCROLL COMPRESSOR WITH TIP SEALS
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...
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	 INTERNAL COMBUSTION ENGINE AND SUPERCHARGER
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	 DRY VACUUM PUMP
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...