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Matches 551 - 600 out of 5,152

Document Document Title
WO/2004/020839A2
The invention concerns a fixing device comprising a coaxial annular flange (14) wherein are provided through holes (16) designed to be traversed each by a screw (17) urged to be screwed in an associated tapped hole (15) of the wall of a ...  
WO/2004/018879A1
The present invention relates to a vacuum pump and a method of starting a vacuum pump. The vacuum pump includes a pump rotor (1) rotatably disposed in a casing (2), and a pump-rotor controller (15) for controlling rotation of the pump ro...  
WO/2004/015272A1
The invention relates to a device (1), for evacuating a chamber to pressures in the high vacuum range, comprising a suction-side vacuum pump (2) and an atmospheric-pressure-side vacuum pump (3). The suction-side vacuum pump (2) is embodi...  
WO/2004/001230A1
A method of operating apparatus for controlling the pressure in a process chamber (10), the apparatus comprising a first pump unit (14) having an inlet in fluid connection with an outlet of said process chamber, and a second pump unit (1...  
WO/2003/106844A1
The present invention relates to a ultrahigh vacuum pump and a hydraulic method for compressing gas into water in three dimensions. Said pump includes a conduit, a hydraulic valve assembly, an oil supplying&sol discharge port, a piston w...  
WO/2003/100259A1
A method and apparatus for monitoring operating characteristics and/or control signals of a system comprising a variable speed vacuum pump. Operating characteristics and/or control signals of the system may be monitored, and the pumping ...  
WO2003078838B1
A vacuum pump control device capable of suppressing a power consumption by a vacuum pump by varying the speed of the vacuum pump according to the operating conditions of a vacuum device, wherein a condition set part (4) sets a relation b...  
WO/2003/078838A1
A vacuum pump control device capable of suppressing a power consumption by a vacuum pump by varying the speed of the vacuum pump according to the operating conditions of a vacuum device, wherein a condition set part (4) sets a relation b...  
WO/2003/078845A1
A vacuum pump includes a housing 10 having an inlet port 14 and an exhaust port 16, a plurality of vacuum pumping stages 30,32...,46 located within the housing 10 and disposed between the inlet port 14 and the exhaust port 16, and a moto...  
WO/2003/076810A1
The invention relates to the fundamental principle of a turbomolecular pump (TP), basically having a free central passage (F) through which it is possible to carry out various manipulations and diagnoses while maintaining various vacuum ...  
WO/2003/076809A1
The invention relates to a method for producing a one-piece rotor (1) for a drag vacuum pump (21) which is designed, at least in sections, as a turbomolecular vacuum pump with rotor blades (5) and stator blades (9). The rotor (1) has a h...  
WO2002013652A9
A pump or compressor for transporting a fluid comprises an impeller that includes a plurality of impeller elements disposed for rotation imparting kinetic energy to the fluid. The impeller (200), which in one embodiment is an axial flow ...  
WO/2003/056187A1
The invention relates to a method for coating objects consisting of valve metals or the alloys thereof with a thin barrier layer of the metal and an oxide ceramic layer located thereon, the surface of said oxide ceramic layer being coate...  
WO/2003/056186A1
A gas pump is described and claimed, having a rotor (2), arranged to rotate about a longitudinal axis (A), and a housing (3) arranged to enclose the rotor (2) and having a gas inlet and a gas outlet. The rotor (2) has at least one helica...  
WO/2003/040568A1
The invention concerns a vacuum pump (10) comprising a control device (20) for processing operational data and operational instructions, as well as a touch screen (40) for displaying operational data capable of being invoked from the con...  
WO/2003/038279A1
A fan assembly includes a ventilation apparatus (240); a connector (220) for communicating power; and a positionable power cord (230), coupled to the connector and the ventilation apparatus. The fan assembly operates in cooperation with ...  
WO/2003/031823A1
The invention relates to an essentially axially discharging friction vacuum pump (1) comprising a housing (2), and at least two rotationally symmetrical components (5, 6) which are coaxially arranged in the housing. The surfaces of said ...  
WO/2003/021123A1
The invention relates to a device that compensates for disturbances in a rotating machine in order to eliminate unwanted vibrations caused by synchronous disturbances, such as those caused by unbalance for example. Said machine comprises...  
WO2002055883A3
In one aspect, a vacuum processing system comprising a vacuum processing chamber and a turbo-molecular pump disposed on the vacuum processing chamber is provided. The turbo-molecular pump comprises a casing having an inlet port and an ou...  
WO2002077462A3
A turbomolecular pump (10) comprises a stator, a pump rotor, a motor (28) for driving the pump rotor and a control device (42). The control device (42) controls the motor output as to prevent the motor output from exceeding a permissible...  
WO/2002/098731A1
The invention concerns a ship low-noise hydrojet propeller unit with good performance. It mainly comprises a hydrojet propeller assembly consisting of a hydraulic screw (7) feeding a helico-axial pump (8) emerging in the diffusers (9). A...  
WO/2002/077462A2
A turbomolecular pump (10) comprises a stator, a pump rotor, a motor (28) for driving the pump rotor and a control device (42). The control device (42) controls the motor output as to prevent the motor output from exceeding a permissible...  
WO/2002/075157A1
The invention relates to a turbo molecular pump which comprises a stator (14) and a rotor (15). The stator (14) is cooled by a cooling device (24). In order to enable a heat to be carried off from the rotor (15), the disks of the stators...  
WO/2002/059483A1
Turbomolecular vacuum pump (1) with an inlet (3) and an outlet (4) and rotor and stator vanes (5 and 6), situated between the inlet and outlet, whereby the rotor blades (6) have front sides (11) and rear sides (12) in relation to the dir...  
WO/2002/055883A2
In one aspect, a vacuum processing system comprising a vacuum processing chamber and a turbo-molecular pump disposed on the vacuum processing chamber is provided. The turbo-molecular pump comprises a casing having an inlet port and an ou...  
WO/2002/053918A1
The invention concerns a gas turbine engine axial stator compressor comprising a rigid outer annular frame (2), axially juxtaposed rings (4a, 4b, 4c), arranged inside the frame (2) and bearing fixed blade rims (5), said rings consisting ...  
WO/2002/036965A1
An axial flow compressor including one or more axially spaced stator sections (14) each having a circumferential array of guide vanes (15), and one or more rotor section (12, 16) each having a circumferential array of rotor blades (13, 1...  
WO/2002/035099A1
The invention relates to a mechanical kinetic vacuum pump with a stator (1), a rotor (6, 7) made from an aluminium alloy and a rotor (6, 7)-bearing shaft (3), whereby the connection between shaft (3) and rotor (6, 7) is a shrink- or scre...  
WO/2002/035100A1
The invention relates to a mechanical kinetic vacuum pump comprising a rotor made of an alloy. The aim of the invention is to increase the resistance thereof to heat and creep. The rotor material is a light metal alloy produced from a po...  
WO/2002/031360A1
The invention relates to a pump which is embodied as a side channel pump, preferably a vacuum pump, essentially comprising a driven rotor (16) and a fixed stator (14). The rotor (16) and the stator (14) define a pump channel circulating ...  
WO/2002/027189A1
The invention relates to a friction vacuum pump (1) comprising at least one turbomolecular pump stage, with a molecular pump stage that is subsequently connected on the pressure side, and with a transition stage mounted between the turbo...  
WO/2002/027190A1
A multi-stage compressor rotor (10) for a gas turbine engine comprises an axial-flow rotor (12) followed by a centrifugal rotor (14). The axial-flow rotor (12) and the centrifugal rotor (14) are diffusion bonded together to form a unitar...  
WO/2002/025116A1
The invention relates to a turbomolecular vacuum pump comprising rows of rotor blades (3) and rows of stator blades (4) that alternately engage with one another at varying angles of attack ($g(a)). The aim of the invention is to improve ...  
WO2001086151A3
The invention relates to a magnetic bearing for rapidly rotating machines (1), in particular, for turbo compressors, drag vacuum pumps, or similar, comprising two bearings (3, 4), each with a stator magnetic-ring set (5, 7) and a rotor m...  
WO/2002/021230A2
The invention relates to a chamber (10) wherein a vacuum (pHv) is maintained in a regulated manner. Said chamber is connected to a suction line (14) comprising a plurality of pumps (15, 16, 17) arranged in a series. The regulation of the...  
WO/2002/018794A1
The vacuum pump (10) comprises a stator (14) in which a rotor (12) with radial magnetic bearings (16,19) and with an axial magnetic bearing (40) is mounted in a contactless manner. The axial magnetic bearing (40) produces an axial magnet...  
WO/2002/013652A1
A pump or compressor for transporting a fluid comprises an impeller that includes a plurality of impeller elements disposed for rotation imparting kinetic energy to the fluid. The impeller (200), which in one embodiment is an axial flow ...  
WO/2002/005310A1
The invention relates to a particle radiation device comprising a particle source that is operated in an ultrahigh vacuum and a preparation chamber which can be operated using variable pressures of up to 1 hPa. The inventive particle rad...  
WO/2002/002943A1
A flywheel energy storage system (200), includes two pumps (218, 224) arranged in parallel for simultaneously drawing-off and absorbing substantially all of the gases that evolve from a flywheel assembly during high speed operation. A wa...  
WO/2002/002957A1
The invention concerns a contact roller bearing for a vacuum pump comprising a rotor roller bearing ring (12) a coaxial stator roller bearing ring (13) between which are provided rolling elements (14a, 14b, 14c, 14d) housed in succession...  
WO/2001/086158A1
The invention relates to a machine (1), comprising a stator and a rotor (2) which is mounted with radially stable and axially unstable magnetic bearings (3, 4). Said magnetic bearings (3, 4) each consist of concentrically arranged magnet...  
WO/2001/086151A2
The invention relates to a magnetic bearing for rapidly rotating machines (1), in particular, for turbo compressors, drag vacuum pumps, or similar, comprising two bearings (3, 4), each with a stator magnetic-ring set (5, 7) and a rotor m...  
WO/2001/057403A1
The invention relates to a seal between a rotating part and a stationary part. At least one of the parts is provided with projections which protrude into the seal gap. According to the invention, the seal gap (5) extends approximately ra...  
WO/2001/038742A1
The invention relates to a vacuum pump (1, 30) which comprises an inlet (5) and an outlet (6), which are equipped with connecting devices (7, 8) for connecting lines (23). The aim of the invention is to design the connection dimensions o...  
WO/2001/036825A1
A radial flow turbomolecular vacuum pump (50) includes a gas inlet (52), a gas outlet (54), a rotor (56), and a stator (59). The rotor includes a first rotor surface (62) that is positioned in a substantially radial direction. A pluralit...  
WO/2001/036826A1
The ball bearing (18), which supports the part of the rotor shaft (16) located on the rotor, has an inner raceway (23) with an enlarged face upon which the supporting part (22) of the rotor (13) abuts. This leads to an increase in the fl...  
WO/2001/011240A1
The invention relates to a friction vacuum pump (1) with active pumping elements, projecting into the suction chamber (25) whereby the cross-section of said elements narrows in the direction of the pump outlet (23). Said elements are com...  
WO2000049342A3
A low speed cooling fan (100) that is designed to cool individuals located in large industrial buildings. A fan with a diameter between 15 to 40 feet consisting of a plurality of blades (316), with each in the shape of a tapered airfoil,...  
WO/2001/011242A1
The invention relates to a stator ring (1) for a turbomolecular vacuum pump, comprising an outer spacing ring (3) and stator blades (2). In order to reduce fabrication and mounting costs, said spacing ring (3) and said stator blades (2) ...  
WO/2001/006129A1
The invention relates to a friction vacuum pump for use in a system for regulating the pressure in a vacuum chamber comprising a multistage turbomolecular vacuum pump section (6) whose stages each consist of a row of stator vanes and rot...  

Matches 551 - 600 out of 5,152