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Matches 151 - 200 out of 3,272

Document Document Title
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...  
WO/2011/031766A2
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/2011/018642A2
The present invention relates to a scroll compressor comprising a scroll pumping mechanism which comprises an orbiting scroll (20) having an orbiting scroll wall (34) extending axially from an orbiting scroll plate (36) towards a fixed s...  
WO/2011/018648A2
The present invention relates to a scroll pump (10) which comprises two scrolls (20, 22) which are co-operable for pumping fluid from an inlet to an outlet on relative orbiting motion of the scrolls. Each scroll (20, 22) comprises a scro...  
WO/2010/118140A3
A compressor may include a shell assembly defining suction and discharge pressure regions, first and second scroll members disposed within the shell assembly, and a capacity modulation assembly. The first scroll member may include a firs...  
WO/2010/072526A3
The invention relates to a vacuum pump, particularly a screw-vacuum pump, having a pump housing (14) wherein pump elements (10) are arranged. The pump housing (14) has a first flange (48) that is connected to a second flange (50) of a pu...  
WO/2010/118140A2
A compressor may include a shell assembly defining suction and discharge pressure regions, first and second scroll members disposed within the shell assembly, and a capacity modulation assembly. The first scroll member may include a firs...  
WO/2010/105296A1
A mechanical seal is disclosed that has first and second sealing faces that are urged into contact to form a seal therebetween. One sealing face is mounted on a rotatable portion of the seal and the second sealing face is mounted on a su...  
WO/2010/090854A1
A face of a base of an orbiting scroll member is aligned with a thrust bearing. The thrust bearing includes a back pressure pocket and a seal for sealing the back pressure pocket to entrap a compressed fluid. There is a tap for tapping f...  
WO/2010/090853A1
A scroll compressor comprises a non-orbiting scroll member having a base and a generally spiral wrap extending from its base, and an orbiting scroll member having a base and a generally spiral wrap extending from its base. The wraps of t...  
WO/2010/072526A2
The invention relates to a vacuum pump, particularly a screw-vacuum pump, having a pump housing (14) wherein pump elements (10) are arranged. The pump housing (14) has a first flange (48) that is connected to a second flange (50) of a pu...  
WO/2009/155109A3
A compressor including a housing defining a suction pressure region and a discharge pressure region includes first and second scroll members forming compression pockets. A first chamber located on the first end plate of the first scroll ...  
WO/2010/047602A1
A swash pump for compressible fluids uses sealing contacts made between the nutatable swash plate and the fixed cone plates to centre and locate the inner swash sphere which slides against two resiliently mounted ring seals only, minimis...  
WO/2010/043202A2
The invention relates to a vacuum pump, comprising a pump housing which can be attached, or is attached, to a motor vehicle housing part, and which can be connected, or is connected, to a lubricant source, and comprising a rotor, which i...  
WO/2010/031359A1
A vacuum pump comprises an actuator (20) with an actuating shaft (201), a mounting base (21) with a first side being attached to the actuator (20), a pumping device (10) having a pumping ring (28) being attached to a second side of the m...  
WO/2009/155109A2
A compressor including a housing defining a suction pressure region and a discharge pressure region includes first and second scroll members forming compression pockets. A first chamber located on the first end plate of the first scroll ...  
WO/2009/150537A2
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 rotor casing, which is sandwiched between ...  
WO/2009/141097A1
A vane for a displacement pump comprising a body (1), a profiled pumping chamber (2) defined within said body (1), and a rotor (4) rotatably mounted within said body (1), eccentric with respect to the pumping chamber (2) and carrying a v...  
WO/2009/090079A3
A displacement pump driven by a motor, wherein a barrier (4.1; 8; 2.2) suitable for preventing or reducing the fluid leakage is inserted in at least one of the pump regions which are subjected to a leakage between the inner space of the ...  
WO/2009/132412A1
A traditional compressor unit of the sealed type suffers in that a failure of either the motor or the compressor require both to be discarded Provided is a compressor (1) having a rotor assembly (3) withm which a rotor (24) is rotated on...  
WO/2009/127281A1
The invention relates to a vane pump or a vane compressor, having at least one vane supported displaceably within a rotor, wherein the rotor is supported eccentrically in a hollow cylinder, the vane end (4) frictionally contacting the in...  
WO/2009/091897A1
A scroll compressor includes a feature for location of a housing shell section off of one of the scroll compressor bodies. According to this aspect, a scroll compressor comprises a housing including a shell section; scroll compressor bod...  
WO/2009/091890A1
A scroll compressor includes scroll compressor bodies with axial tip seals projecting from the respective scroll ribs of fixed and movable scroll compressor bodies. An extended thrust region is provided in surrounding relation to an inne...  
WO/2009/091861A1
A scroll compressor includes a baffle member in a high pressure region of the housing where compressed fluid is stored. The baffle serves to carry and transfer pressure loads away from the central region to an outer periphery region wher...  
WO/2009/090079A2
A displacement pump driven by a motor, wherein a barrier (4.1; 8; 2.2) suitable for preventing or reducing the fluid leakage is inserted in at least one of the pump regions which are subjected to a leakage between the inner space of the ...  
WO/2002/061283A3
A scroll compressor (1) having improved efficiencies includes a fixed plate (3) having a spiral involute (5), and an orbiting plate (7) having a spiral volute (13), which are positioned in a housing that the spiral involute wraps (5, 13)...  
WO/2009/012606A3
In a displacement machine of spiral design, the displacement body (2) has a disc (3) which carries a protruding displacement element (4, 5) on each side. The hub (11) of the disc (3) is mounted by means of a hub bearing (10) on an eccent...  
WO/2009/044197A3
A multi-stage, clam shell, vacuum pump comprises two housing components (12) which are to be sealingly connected to one another such that an array of chambers extending longitudinally from an inlet region of the pump to an outlet region ...  
WO/2006/086009A3
A rotary engine includes a housing, a shaft, a plurality of main pistons, a plurality of main piston rods, a plurality of following pistons, a plurality of following piston rods, a following piston timing mechanism and a plurality of tim...  
WO/2009/046810A1
The invention relates to a vacuum pump, particularly a vane pump, having a rotor bearing section by means of which a rotor is mounted in a rotatable fashion about a rotary axis in a housing bearing section of the housing. The invention i...  
WO/2009/044197A2
A multi-stage, clam shell, vacuum pump comprises two housing components (12) which are to be sealingly connected to one another such that an array of chambers extending longitudinally from an inlet region of the pump to an outlet region ...  
WO/2009/035640A1
A compressor may include a shell, first and second scroll members, a partition and a first annular seal. The partition may be fixed to the shell and may overly the first scroll member. The partition may include first and second sides hav...  
WO/2009/035639A1
A compressor may include a shell, a bearing housing assembly located within and secured to the shell, a compression mechanism supported on the bearing housing assembly, a partition extending over the compression mechanism, and an annular...  
WO/2009/024370A1
The invention relates to a dry-type vacuum pump comprising at least one rotary shaft (11) supported by at least one lubricated bearing (5) and at least one device (9) for sealing against the lubricating fluids which can emanate from said...  
WO/2009/023974A1
In a positive-displacement machine for compressible media, having a spiral-shaped delivery chamber (11) arranged in a housing (7b) between cylinder walls (14, 15), a spiral-shaped positive-displacement body is composed of a disk (2) with...  
WO/2009/025230A1
It is difficult in conventional scroll fluid machines to secure, behind the rear surface of an orbiting scroll member, a space for a back pressure chamber. A scroll fluid machine of the invention facilitates creation of such a back press...  
WO/2009/012606A2
In a displacement machine of spiral design, the displacement body (2) has a disc (3) which carries a protruding displacement element (4, 5) on each side. The hub (11) of the disc (3) is mounted by means of a hub bearing (10) on an eccent...  
WO/2009/003884A1
The invention relates to a compressor for refrigerant, having an outer housing, having a spiral compressor with a first fixed compressor body arranged in the outer housing, and a second compressor body which can be moved relative to the ...  
WO/2009/004360A1
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 annular reinforcing member, the tube bei...  

Matches 151 - 200 out of 3,272