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Patent Searching and Data


Matches 151 - 200 out of 3,229

Document Document Title
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...  
WO/2008/154490A1
A face seal (270) is provided that includes an annular casing (280) having an annular portion (281), an inner diameter portion (283) extending axially from the annular portion, an outer diameter portion (285) extending axially from the a...  
WO/2008/124950A1
A bearing (12) is disposed between the hub (13) of the disc (3) of the displacement body (2) and an eccentric disc (9) connected to a drive shaft (6). A lubricant supply system (24) is provided for lubricating the bearing (12), conveying...  
WO/2008/075131A3
This power train unit (4, 4') for an automotive vehicle (1) includes an internal combustion engine (4). It also includes at least one hydrocarbon sensor (5), located in the same compartment (25) as the engine (4), and a control unit (6) ...  
WO/2008/116590A1
The invention relates to a sealing ring for a shaft seal, having an outer circumferential surface (3), an inner circumferential surface (5) and two lateral surfaces (7, 9), the inner circumferential surface (5) being provided with a seal...  
WO/2008/031012A3
A telescoping gear pump comprises a bolt, a Bellville washer, a wear plate, a seal housing, a seal spring, a spur gear including a wear lobe, a seal ring and a case drain path, a shaft, a ring gear including a wear lobe, seal ring, and a...  
WO/2007/019018A3
A controlled-clearance sealing compressor device that provides precision rotor centering directly with respect to the stator housing, vane centering with respect to rotor (not the stator) and the dynamic balance design of the gliders req...  
WO/2008/075131A2
This power train unit (4, 4') for an automotive vehicle (1) includes an internal combustion engine (4). It also includes at least one hydrocarbon sensor (5), located in the same compartment (25) as the engine (4), and a control unit (6) ...  
WO/2008/070955A1
A rotary device comprises a stator and a rotor. The stator has a cam surface. The rotor has a sleeve and a hub. There is a plurality of vanes reciprocatingly mounted on the rotor. There is a plurality of first longitudinal edge seals dis...  
WO/2008/073334A2
A scroll compressor may include a shell, a compression mechanism, and a sealing apparatus. The compression mechanism may be contained within the shell and include a compression member. The compression member may include an aperture exten...  
WO/2008/011934A1
The invention relates to a rotor pump having a pump housing (12), having a rotor (18) which is rotatably mounted in the pump housing, and having a vane (20) which is movably mounted in the rotor, the vane tips (34) of which vane (20) bea...  
WO2007111903B1
A floating seal has a lower plate, an upper plate and a pair of seals disposed between the two plates. The lower plate, the upper plate or both plates include a backer which projects outward from the plate to engage one or both of the se...  
WO/2007/111689A3
There are a number of applications today where the pumping of abrasive slurries is necessary. The pumping mechanisms, though, can be complex, employing multiple transfer cylinders and movable pipes. These designs have their problems, spe...  

Matches 151 - 200 out of 3,229