Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 801 - 850 out of 6,007

Document Document Title
WO/1999/047814
The invention relates to a multi-stage side-channel pump (1), especially for fuel for a motor vehicle, comprising at least first vane chambers (16) of a pre-stage (7) and second vane chambers (17) of a main stage (10). The multi-stage si...  
WO/1999/047816
A cooling water pump (2) for an electric power station. The aim of the invention is to provide an especially smooth inner surface and to maintain a high degree of precision with respect to the dimensions of the pump housing (16) using si...  
WO/1999/048189
A device for tranmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle, which comprises at least two motion transmission couplings which mutually cooperate ...  
WO/1999/045273
A device for regulating the performance of fluid machinery by regulating the revolution speed of the fluid machinery, comprising a frequency converter (48), cases (46, 47) for housing the frequency converter (48) to ensure air-tightness ...  
WO/1999/043541
For the protection of a submersible ballast pump (4) of the type comprising a pump head (5), a riser pipe (7) projecting upwards therefrom having a pump drive shaft, and a top piece (6) with a motor, arranged in conjunction with the pump...  
WO/1999/041504
The invention relates to a fuel delivery unit, comprising a regenerative pump and an electrical motor for driving said pump. The electrical motor has a stator winding, a permanent magnet (37) and a rotor (29). Said rotor (29) and a runni...  
WO/1999/039422
The present invention relates to a motor for a submerged pump, wherein said motor comprises a rotor (5) as well as a body (1) having the magnetic conductor (2) of a stator mounted therein. The stator has a dented area (8) comprising groo...  
WO/1999/035403
A direction-dependent driving coupling between the rotor (14) of a permanent-magnet synchronous motor and a working part. The coupling (30) comprises at least one first eccentric driving tooth (31) and at least one cantilevered elastomer...  
WO/1999/030039
A centrifugal pump capable of solving various problems which would otherwise have been caused in centrifugal pumps having an impeller rotatably received within a casing formed with a suction port and a discharge port and made of stainles...  
WO/1999/028631
The invention relates to a fuel supply system comprising a feed pump (11) designed as a flow or side channel pump that has a pump chamber (14) formed in a housing (13), a rotor (16) arranged inside said chamber and an electric motor (12)...  
WO/1999/028632
The present invention concerns a pump arrangement, in particular for wind-screen washer systems of motor vehicles. The pump housing (30) includes a liquid inlet (36), and a liquid outlet (38) through which the impeller (32) delivers the ...  
WO/1999/027257
The present invention pertains to the construction of machines for the petroleum industry and more precisely relates to bore-hole multiple-stage pumps used for pumping a liquid from a geological layer. This invention can be used for incr...  
WO/1999/025980
The weight and volume of a centrifugal fuel pump ideally suited for use in a fuel system for a turbine engine (12) may be reduced in a construction including a single shaft (10) mounting an inducing impeller (18), an impeller (22) for a ...  
WO/1999/025055
A modular permanent-magnet electric motor assembly having a predetermined maximum power output for a submersible pump assembly, a stator having a plurality of electric coils adapted to be energized to create a magnetic field, and a rotor...  
WO/1999/022141
There is described pumping apparatus which consists of a Moineau pump coupled to a fluid pump and a primemover for providing rotational motion over the rotor of the Moineau pump. The inner rotor of the Moineau pump is preferably mounted ...  
WO/1999/014503
The invention concerns a rotary pump (PP) for sucking in a liquid such as hydrocarbon comprising a pump wheel (1) integral with a rotor (4) immersed in part of the liquid sucked in by the pump. A motor (11) comprising a stator element (1...  
WO/1999/012587
A pump assembly (1, 33, 200) adapted for continuous flow pumping of blood. In a particular form the pump (1, 200) is a centrifugal pump wherein the impeller (100, 204) is entirely sealed within the pump housing (2, 201) and is hydrodynam...  
WO/1999/010655
A sealless coolant pump (10) comprising a pulley assembly (14) having a pulley (18) for co-operation with a drive belt B and a driving magnetic member (22), a pump body (12) housing a driven pump member (26) attached to a driven magnetic...  
WO/1999/008366
A pump comprising a pump casing having an inlet and an outlet, and an impeller having a rotary axis and being rotatably mounted within the pump casing for rotation about the rotary axis is provide. The impeller is configured and position...  
WO/1999/008363
Dynamo electric machines and stators for use in such machines are provided. The stators comprise plates configured to be substantilly flat and a plurality of spaced apart projections or teeth extending away from the plate and, together w...  
WO/1999/006711
The magnetic-drive assembly (40) has an axial bearing which is strategically located to minimize compressive forces on a primary shaft (14). The axial bearing (55) functions both as an ordinary thrust bearing and an inefficient impeller ...  
WO/1999/006234
The invention relates to a latent heat storage system for use on the cooling-water circuit of a vehicle combustion engine, whereby a motor-driven rotary pump is secured either at the edge of the storage system housing or inside said hous...  
WO/1999/001663
A pump for transferring fragile and aggressive fluids such as human blood and comprising a chamber along with one or more fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and at least one outlet por...  
WO/1998/059173
The invention relates to a fuel supply unit with a supply pump (11) designed as a flow or side-channel pump, comprising a pump chamber (14) inside a housing (13), an impeller (16) located therein and an electric motor (12) driving the im...  
WO/1998/050701
The invention relates to a delivery unit supplying fuel in an automobile. The inventive device has an electric motor (1) with guide blades (11) arranged on the casing of a rotor (4). When the rotor (4) rotates, the guide blades (11) cove...  
WO/1998/048167
Provided in accordance with the principles of the present invention, in one preferred embodiment, is a pumping system (90). The system includes a housing (108) rotatably supporting a tube (112), with a plurality of magnets (116) located ...  
WO/1998/046887
The centrifugal liquid pump (1) is of the rotary discs types and has an integrated gas injector of very simple yet efficient structure. This pump (1) has a casing (3) defining an inner, substantially cylindrical chamber (5) with an axial...  
WO/1998/046879
A pump (10) for transferring fragile and aggressive liquids such as human blood and comprising a pumping chamber (12) along with a pair of fluid inlet ports (16, 17) arranged in oppositely disposed relationship on the chamber, and one or...  
WO/1998/044261
In a centrifugal pump (110), a mechanical seal (70) has a non-rotating secondary seal (76) that seals a non-rotating mechanical seal (74), and the seal (70) has a rotating seal (78A) sealed by another rotating secondary seal (77). The me...  
WO/1998/042981
The invention relates to a combined wind and solar power installation with particularly high availability. In accordance with the invention, an operating shaft is driven by both a vertically turning wind rotor and by an electric motor fe...  
WO/1998/034030
A single-stage, overhung centrifugal process pump (10) incorporates a low-flow auxiliary impeller (36) which receives intake liquid from the discharge (16) of the primary impeller (20). This feature saves energy by significantly reducing...  
WO/1998/034009
The invention concerns a pumping installation designed for being mounted in an oil well (10) extending from the surface to a layer of oil-bearing rock, comprising a pipe column (18) at the lower end of which is mounted a pump (20), a joi...  
WO/1998/028544
Submerged pumps are generally lowered into trenches using the power cable (12) which leads into the pump head (10). According to the invention, in order to prevent unnecessary stress on the power cable (12), a protective hose is provided...  
WO/1998/028543
The invention relates to a device for non-alterative propelling of single-phase and polyphase fluids, specially a blood pump, having a rotating member, which feeds energy to the fluid to be propelled, and at least one regulating device, ...  
WO/1998/017874
An improved fuel transfer pump (10) is provided for relatively high flow transfer of fuel from one aircraft to another during an inflight refueling procedure, wherein the fuel transfer pump (10) includes a jet-type scavenge pump (12) for...  
WO/1998/018190
The present invention concerns an electric motor frame (1) suitable for being coupled to a pump, comprising a tubular body (2) suitable for housing at least one pack of stator core laminations (3) of said electric motor. Said frame is pr...  
WO/1998/015738
The invention is concerned with a procedure for use with a pump (6) for the movement of liquid, powered by an internal combustion engine, which pump is not capable of pumping air (gas) and thereby drawing liquid up into itself at start-u...  
WO/1998/011347
An axial-flow blood pump (10) has a rotor (20) suspended in ball-and-cup bearings (38, 34) which are blood-cooled but not actively blood-lubricated. The ball-and-cup structures are made of highly heat-conductive material and are in heat-...  
WO/1998/011650
The invention concerns a rotary pump (3) having a housing (9) and a rotor (2) with blades (1b) which is placed inside the casing. The rotor (2) comprises a passive magnetically active rotor part (1) and the housing (9) is surrounded by a...  
WO/1998/009718
The weight of a fluid is used to drive a plurality of semi-permeable membranes or other filter material to produce a permeate, and in at least some level of the apparatus more than 30 % of the permeate produced is collected within a sing...  
WO/1998/006947
The present invention relates to a high-pressure centrifugal and submersible electrical pump which is particularly intended for pumping crude oil from wells having a low output and a high gas factor. A pipe (11) is mounted in the lower s...  
WO/1998/004834
The invention concerns a centrifugal pump, consisting of a pump head and a drive, for pumping blood and other shear-sensitive liquids, such as dialytic suspensions containing cells in haemodialysis equipment. It is characterized by the d...  
WO/1998/003214
A system for irrigating a surgical site is disclosed having a lightweight battery powered pumping unit (10) that is directly connectible to an irrigation source (12), and a handpiece (14) that either irrigates the site with irrigation fl...  
WO/1998/000643
Pumps, for example, bilge pumps, comprise a pump housing including an inlet (52) and an outlet (54), a motor (20) and an impeller assembly (24) coupled to the motor (20) for pumping liquid which passes through the outlet (54). The motor ...  
WO/1997/049440
A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rot...  
WO/1997/049920
The present invention relates to a well pumping equipment comprising a pump (1) with an electric motor (2) that have their bodies placed into the well using a pumping and compressor pipe (3). This equipment also includes a frequency conv...  
WO/1997/047884
An apparatus for providing pressurized liquid for operating a hydraulically operated device of an airplane comprises a pump for pumping liquid, a high speed flood cooled permanent magnetic motor for driving the pump, a drive connecting t...  
WO/1997/046806
A submerged motor pump (4) has an auxiliary bearing assembly (19, 20) for supporting a rotatable main shaft (9) when the submerged motor pump (4) is not in an operating condition or operates in a transient condition. The submerged motor ...  
WO/1997/042413
An apparatus and method for a centrifugal pump (10) for pumping sensitive biologic fluid, which includes (i) an integral impeller and rotor (21) which is entirely supported by an integral combination of permanent magnets and electromagne...  
WO/1997/042414
An apparatus and method for a centrifugal pump (10) for pumping sensitive biological fluid which includes (i) an integral impeller and rotor (21) which is entirely supported and rotated magnetically by electromagnets (52, 54), (ii) a pum...  

Matches 801 - 850 out of 6,007