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Patent Searching and Data


Matches 201 - 250 out of 3,233

Document Document Title
WO/2007/111903A1
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/2007/111689A2
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...  
WO/2007/041224A3
A hydrogen G-cycle rotary vane internal combustion engine has a sodium vapor chamber transferring excess combustion heat into combustion chambers. An active water cooling system captures heat from the engine housing stator, rotor, and sl...  
WO/2007/065487A1
The invention relates to a helical screw compressor comprising two rotors which are mounted in the rotor housing. Said helical screw compressor comprises sealing arrangements (11, 11') for sealing the pressure-sided shaft journals of the...  
WO/2006/018848A3
A static-fluid-pressure-driven rotary motor includes a casing (12, 121), which defines a chamber having a fluid inlet and a fluid outlet, and at least one rotor assembly (10) rotatably mounted within the casing. The rotor assembly includ...  
WO/2007/054162A1
The invention relates to a rotor pump comprising a pump housing and a rotor which is rotatably mounted therein. A vane is displaceably mounted in the rotor with the base body thereof, lies on an inner peripheral surface with the tips the...  
WO/2007/042135A1
The invention relates to a rotor pump (2) which comprises a pump housing and a rotor (20) rotatably received therein. A vane is displaceably received in the rotor with its vane base (32) and rests on the interior peripheral surface of th...  
WO/2007/042134A1
The invention relates to a vane (18) for a rotor pump (2) which comprises a pump housing and a rotor rotatably received therein. Said vane (18) is displaceably received in the rotor and rests on the interior peripheral surface of the pum...  
WO/2007/006666A1
The invention relates to a rotary vacuum pump that has a suction chamber (12) in a housing (10). A rotor (14) is eccentrically mounted in the suction chamber (12). Sliding vanes (18) are connected to the rotor (14). A discharge channel (...  
WO/2006/127535A1
A rotary device for an engine includes a stator and a rotor concentric with and rotatable about an axis with respect to the stator. The rotor and the stator cooperate to provide a working chamber. A plurality of vanes are supported for r...  
WO2005067519A3
An abradable coating (40) is formed on portions of the flank wall of the wraps (126) of a scroll compressor. The radially outer portions of the flank wall are left uncoated (36), and can bear a force between the scroll wraps. In this man...  
WO/2006/106069A1
Disclosed is a shaft seal which is suitable especially for vacuum pumps such as propeller pumps. Said shaft seal comprises an inner sealing ring (18) that can be connected to the shaft, and an outer sealing ring (20) which surrounds the ...  
WO2005094547A3
A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably di...  
WO2005059366A9
Scroll fluid machinery, wherein a fixed scroll (21) with a scroll-shaped lap (24) and a movable scroll (22) are installed on an end plate (23). High polymer actuators (40) adjusting a clearance between the lap (24) and the end plate (23)...  
WO/2006/066692A1
An arrangement of a shaft with a slip-ring seal mounted thereon is disclosed. The slip-ring seal (3) comprises a pair of cooperating slip rings (4,5), the sealing faces of which define a sealing gap (6) between them. One of the slip ring...  
WO/2006/061559A1
Scroll-type pumping apparatus comprises a stator (104) comprising a fixed scroll member (106) having an end plate with a first spiral wrap (118) extending therefrom, and an orbital scroll member (108) having an end plate with a second sp...  
WO2005052373A3
The invention is related to rotary machines, which can be used, for instance, as air compressors. The goal of this invention is to build up efficiency of machine as an air compressor at 5 high-speed rotation. The set task is resolved due...  
WO/2006/045188A1
Variable capacity vane pumps are provided which require less radial volume about the pump by placing the pump control mechanism out of the plane of the pump rotor. In one embodiment, the control mechanism is placed on one side of the rot...  
WO/2006/045190A1
A novel variable displacement vane pump is provided wherein pressurized working fluid is provided to a portion of the pump chamber to act on the outside of the capacity varying ring to substantially balance the force created by the high ...  
WO/2006/035934A1
Oil supply grooves (74, 84) are formed in the rotary shaft (70) of a compression mechanism (50) and the rotary shaft (80) of an expansion mechanism (60) that are integrated with an electric motor (40). Both rotary shafts (70, 80) are cou...  
WO/2006/018848A2
A static-fluid-pressure-driven rotary motor includes a casing (12, 121), which defines a chamber having a fluid inlet and a fluid outlet, and at least one rotor assembly (10) rotatably mounted within the casing. The rotor assembly includ...  
WO/2006/009603A1
A scroll compressor has a recess (46, 48, 49, 56, 58) cut into a surface of a crankcase (27) or an orbiting scroll (26) while there is no material removed next to the seals (29, 31) that seal refrigerant in the back chamber located betwe...  
WO/2006/005384A1
The invention relates to a single-winged vacuum pump provided with a pot-shaped housing (12), a rotor (18) which is mounted in a rotational and eccentric manner in the housing, and a wing which is displacably mounted in the rotor and whi...  
WO/2005/111427A1
A seal ring (29) is provided between an end plate (26A) of an eccentric rotating body (21) and a support plate (17), and a high fluid pressure is applied to the end plate (26A) to cause an axial pressing force to be applied to the end pl...  
WO/2005/106204A1
A balanced rotary cycling machine suitable for use as an internal combustion engine, compressed gas or steam engine, compressor or pump is disclosed herein. The rotor assembly consists of four articulating pistons where the opposite pist...  
WO/2005/094547A2
A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably di...  
WO/2005/088079A1
The upper and lower end surfaces (67b, 67c) of a rotary piston (67) are formed with annular seal grooves (91) extending along the annular end surfaces (67b, 67c), and an annular lip seal (92) is fitted in each of the seal grooves (91). T...  
WO/2005/085643A1
A vacuum pump, comprising a shaft seal not eroded by corrosive gas and assuring smooth operation. A shaft seal structure (17) is installed on the outer peripheral surfaces of bearing bodies (16M) and (16FM) positioned inside the cylinder...  
WO/2005/071259A1
A scroll compressor is provided with a generally spiral wrap having an abradable or conformable coating on radially inner portions of its tip. The coating is not applied to radially outer portions. During operation of the scroll compress...  
WO/2005/067519A2
An abradable coating (40) is formed on portions of the flank wall of the wraps (126) of a scroll compressor. The radially outer portions of the flank wall are left uncoated (36), and can bear a force between the scroll wraps. In this man...  
WO/2005/064166A1
A scroll compressor, wherein a seal ring (18) for forming a back pressure clearance (S3) at the rear of a movable scroll (22) is adjustably positioned on the end plate (25) of the movable scroll (22) at the seal and leak position since, ...  
WO/2005/059366A1
Scroll fluid machinery, wherein a fixed scroll (21) with a scroll-shaped lap (24) and a movable scroll (22) are installed on an end plate (23). High polymer actuators (40) adjusting a clearance between the lap (24) and the end plate (23)...  
WO/2005/052373A2
The invention is related to rotary machines, which can be used, for instance, as air compressors. The goal of this invention is to build up efficiency of machine as an air compressor at 5 high-speed rotation. The set task is resolved due...  
WO/2005/052374A1
A vacuum pump is provided comprising a pumping mechanism, a drive shaft for driving the pumping mechanism and a gear box connected to the drive shaft for rotating the drive shaft. Pressure control means are provided to define a path to a...  
WO2005038254A3
A scroll compressor, wherein an approximately annular seal part in slidable contact with the end plate of a rotary scroll while spreading from the outermost peripheral inner wall surface of a lap to the outside to have the external wall ...  
WO/2005/047705A1
A screw-shaped rotor for a vacuum pump comprises an array of mutually spaced bands of abrasive material mounted about the thread of the rotor. During rotor rotation, any contact between the rotor and the stator causes the bands to abrade...  
WO/2005/045249A1
Scroll-type pumping apparatus comprises a housing (204), a driving scroll member (206) having an end plate with a first spiral wrap (224) extending therefrom, a driven scroll member (214) having an end plate with a second spiral wrap (22...  
WO/2005/038254A2
A scroll compressor, wherein an approximately annular seal part in slidable contact with the end plate of a rotary scroll while spreading from the outermost peripheral inner wall surface of a lap to the outside to have the external wall ...  
WO/2005/021974A1
The compressor invention discloses a compressor with a cylinder, a rotor of main shaft within the cylinder to rotate eccentrically, a vane forming a compression chamber and a suction chamber, an inlet inhaling a refrigerant, an outlet di...  
WO/2005/010373A1
A suction port (40) radially penetrating a cylinder (23) is formed in the cylinder (23) of a compressing mechanism (30). A joint member (43) is installed on an enclosed container (10). The head end surface of the joint member faces a per...  
WO/2004/111461A1
A suction port (40) of a cylinder (23) is connected to a suction tube (42), and discharge ports (56, 57) are opened in a closed container (10) to lead a discharge gas to the outside through a discharge tube (14). A suction pressure chamb...  
WO/2004/111456A1
The diameter (d) of an annular seal (11), which divides a back-pressure chamber (12) provided at a rear face of an orbiting scroll component (5) into an inner region (12a) and an outer region (12b), is set equal to or greater than 0.5 ti...  
WO/2004/099619A1
Screw type liquid ring pump including a pump housing (9) with an inlet part (3) and an outlet part (11) and an, inside the housing, rotating helical screw rotor (8). The rotor is connected with a shaft (7) which is commonly provided for ...  
WO/2004/099620A1
A seal assembly for the protection of a static seal device for use in a vacuum pump. The seal assembly comprising at least two components which are sealingly connected together, an o-ring seal, which is engaged between the two components...  
WO2004074687A3
The invention relates to vacuum pumps provided with plastic vanes or blades and used, in particular for a brake booster in motor vehicles.  
WO/2004/079199A1
To counter downstream oil infiltration through a shaft seal, a small portion of the compressed fluid is diverted from downstream to upstream through a passageway in a rotor. The diverted fluid is introduced to a space at a downstream sid...  
WO/2004/079197A1
A vacuum pump, comprising a pair of screw rotors having a first screw rotor with a plurality of spiral land parts and a second screw rotor with a plurality of spiral groove parts and rotating about two axes substantially parallel with ea...  
WO/2004/078548A1
The invention relates to a pump such as a vane-cell pump, a roller cell pump, or a gear pump, especially a vacuum pump. Said pump comprises a housing and a housing cover, rotary displacers such as a rotor and vanes or rolls or toothed wh...  
WO/2004/076863A1
The present invention relates to a scroll compressor which comprises: a scroll assembly comprising two scroll walls (84, 98); and a drive for causing a relative orbiting motion between the scroll walls for compressing fluid on two fluid ...  
WO/2004/074687A2
The invention relates to vacuum pumps provided with plastic vanes or blades and used, in particular for a brake booster in motor vehicles.  

Matches 201 - 250 out of 3,233