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Patent Searching and Data


Matches 1 - 50 out of 5,056

Document Document Title
WO/2019/138213A1
Vacuum pump, in particular a turbo molecular vacuum pump comprising a stator and a rotor wherein the rotor is rotated by a motor and comprises rotor elements in order to convey a gaseous medium from an inlet to an outlet, wherein the rot...  
WO/2019/131682A1
[Problem] To provide a vacuum pump that is favorable for removing products accumulated in a flow passage inside the vacuum pump, and to provide stationary parts, an exhaust port, and a control means to be used with the vacuum pump. [Solu...  
WO/2019/123697A1
Provided are a fan and a compressor stator blade in which the laminar flow region over a blade surface is expanded to reduce loss. In the stator blade, when a parameter obtained by normalizing the angle formed by a tangent to a point on ...  
WO/2019/122873A1
A vacuum pumping arrangement comprising multiple pumping stages for evacuating a process chamber and a method of cleaning the vacuum pumping arrangement is discussed. The vacuum pumping arrangement comprises: at least one turbomolecular ...  
WO/2019/122869A1
The present invention provides a magnetically shielded vacuum pump comprising a pump envelope covering the rotor cavity; at least one outer magnetic shield circumferentially encasing at least a portion of the pump envelope; and a longitu...  
WO/2019/116012A1
A turbomolecular pump and method and apparatus for controlling the pressure in a process chamber using such a pump is disclosed. The turbomolecular comprises: a rotor comprising a plurality of blades on a rotatable shaft; a control motor...  
WO/2019/104417A1
A gas turbine engine, with a conical screw integrated compression system, that utilizes at least one conical screw as an intermediary fluid transport device to facilitate the multi-staging of non-axial compressors, such as centrifugal an...  
WO/2019/102835A1
[Problem] To provide a magnetic bearing control device and a vacuum pump with which a displacement sensor is not required, with which high precision control is possible, and which are compact and low in cost. [Solution] A rate of change ...  
WO/2019/086852A1
The invention provides an additive manufactured stator blade unit for a turbomolecular pump comprising a plurality of stator stages, the stator blade unit comprising a longitudinally extending outer wall with a substantially arcuate cros...  
WO/2019/082706A1
[Problem] To suppress backflow of particles without losing exhaust efficiency in a vacuum pump. [Solution] This vacuum pump comprises: a rotor 11 comprising a rotor center section 12 and a multi-stage rotor blade section 3a extending fro...  
WO/2019/069086A1
A bearing cage retainer (11) for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer ...  
WO/2019/058117A1
A drag pump for pumping gas and a set of vacuum pumps including the drag pump are disclosed. The drag pump comprises: a rotor configured to rotate within a stator component and to drive a gas to be pumped from a gas inlet to a gas outlet...  
WO/2019/048121A1
An axial flow pump (10) has a motor (12) and a pump wheel (14) driven by the motor, wherein the pump wheel is rotatable about an axis of rotation and is shaped to feed fluid in a direction substantially parallel to the axis of rotation. ...  
WO/2019/049683A1
[Problem] To provide a vacuum pump that avoids overvoltage and safely shifts to a regeneration mode, and a motor control device. [Solution] A turbomolecular pump 1 is provided with: a power source unit 4 that converts AC power, acquired ...  
WO/2019/049018A1
A ventilator has a fan, a motor for rotating the fan and a mechanism for opening and closing a flow path for the air flow out of the ventilator. The motor creates torque during start of its operation that is utilized for both rotation of...  
WO/2019/044674A1
[Problem] To provide a vacuum pump and a control device with which highly precise and stable control can be performed during steady operation, and in which the vacuum pump withstands disturbance, the pump stop time is brief, and the pump...  
WO/2019/038436A1
A radial fan comprising: a plurality of blades rotatable about an axis of rotation and extending radially from the axis of rotation; characterised in that each of the blades has a transverse profile that is symmetrical about a radial lin...  
WO/2019/016295A1
The present invention relates to a cooler fan module (10), having: a fan frame (2), a fan wheel recess (4) formed in the fan frame (2), wherein the fan wheel recess (4) is bounded by a frame ring (2a), a motor mount (3), which is arrange...  
WO/2019/013118A1
[Problem] To provide: a vacuum pump that is capable of self-diagnosing a temperature adjustment function by a simple device and carrying out generic inspection without needing a large inspection device; a temperature adjustment control d...  
WO/2019/008372A1
Magnetic bearing for a vacuum pump, comprising a stationary first magnetic element (16) with a number of axially arranged non-rotating permanent ring magnets (16a, 16b, 16c, 16d, 16e) and a second magnetic element (18) rotating relativel...  
WO/2019/008371A1
A power supply system for vacuum pump comprising a power supply means to supply electrical energy to the vacuum pump for operation and energy storage means connected to the vacuum pump to store energy produced by the vacuum pump during r...  
WO/2019/002586A1
The invention relates to a support for a motor vehicle ventilation device (5) comprising a fan (9), the support comprising a nozzle (11) exhibiting an orifice (19) configured to accept the fan (9), the fan (9) comprising a plurality of b...  
WO/2018/233775A1
The invention relates to a heat reservoir element (30) for decentralised ventilation systems, said element being designed to be arranged in a wall passage that receives a ventilation device and defines a longitudinal axis. One end face o...  
WO/2018/229473A1
The invention relates to radially extending annular seal of substantially uniform cross-section for a turbomolecular pump cartridge comprising a circumferential engagement surface configured to slidably engage a surface of the pump in a ...  
WO/2018/229081A1
The invention concerns a propeller (1a, 1b, 1c, 1d, 1e, 1f) of a motor vehicle fan comprising: - a cylindrical ring (2) having a centre (P), - blades (3) extending from the cylindrical ring (2) and towards the centre (P), each blade (3) ...  
WO/2018/229628A1
A flush-mounted fan system (1) for an industrial ventilation system that includes a fan device (2) equipped with a blade group (3) and an electric motor group (4). The electric motor group (4) comprises a drive shaft (43) on which the bl...  
WO/2018/219856A1
The invention relates to a method and a device for increasing the efficiency of jet propulsions by recuperating effective power from the propulsion flow. A ducted fan (4), driven by a drive motor (9) via a driveshaft (1) and located in t...  
WO/2018/221345A1
Provided are a vacuum pump and a heating device therefor that are suitable for extending the lifetime of a heating means used as a countermeasure to prevent product accumulation in a vacuum pump. The vacuum pump evacuates gas using rotat...  
WO/2018/211913A1
[Problem] To provide a vacuum pump, a magnetic bearing device for use with the vacuum pump, and annularly-arranged electromagnets such that the attractive force of electromagnets can be augmented without changing the size of a convention...  
WO/2018/211256A1
A lubricant transfer device (138) that transfers lubricant from a lubricant reservoir to a rolling bearing (132) in a pump. The lubricant transfer device (138) has a tapering outer surface (178) that has a downstream end (220). The lubri...  
WO/2018/206843A1
A method for controlling a vacuum pump comprises: measuring (101) inlet pressure of the vacuum pump, determining (102) an estimate for theoretical suction speed based on data indicative of rotational speed of the vacuum pump and data ind...  
WO/2018/198288A1
Provided is a pump monitoring device that detects abnormalities in a plurality of vacuum pumps which are connected to the same chamber. The pump monitoring device compares signals indicating the rotation state of the pump rotor of each o...  
WO/2018/197834A1
The invention relates to a vacuum pumping system (10) which comprises a plurality of vacuum pumping arrangements (12, 14, 16) for evacuating a flammable gas stream and exhausting the gas stream through an exhaust outlet (78). A housing h...  
WO/2018/195539A1
A cooling tower fan hub having a ring and a disc in which in which hollows and recesses are opened in the ring and/or in the disc in order to decrease fan natural frequencies and avoid excitation by the several kind of loads that affect ...  
WO/2018/193943A1
Provided are a vacuum pump with a reduced vacuum pump total height, and a magnetic bearing unit and a shaft provided in the vacuum pump. In the present embodiment, in a shaft-side lower portion of a five-axis control magnetic bearing, a ...  
WO/2018/193944A1
[Problem] To provide a vacuum pump, a magnetic bearing device, and a rotor with which rotor undulations or vibrations can be reduced. [Solution] A vacuum pump 1 in which the center of gravity G1 of a rotor 20, an active radial bearing 71...  
WO/2018/185483A1
The invention relates to a bearing preload force gauge for indicating the bearing preload force on a turbomolecular pump rotor bearing. The gauge comprises a housing, an indicator for indicating the bearing preload force, and actuator co...  
WO/2018/175359A1
A fan having a housing including a front piece that is separable but connectable to a back piece is disclosed. The front piece has a first connecting edge and a downstream edge, and the back piece has a second connecting edge and an upst...  
WO/2018/174013A1
[Problem] To provide: a vacuum pump that can effectively prevent backflow of particles from the vacuum pump to a vacuum chamber, without the gas molecule exhaust performance of the vacuum pump being impaired, and that is ideal for preven...  
WO/2018/173704A1
[Problem] To provide a vacuum pump provided with a sensor capable of detecting that a deposit has accumulated in a flow passage to a prescribed thickness, even if the chemical composition of the deposit in the flow passage cannot be iden...  
WO/2018/173341A1
Provided are: a vacuum pump that can effectively prevent backflow of particles from the vacuum pump to a vacuum chamber, without the gas molecule exhaust performance of the vacuum pump being impaired, and that is ideal for preventing con...  
WO/2018/173321A1
[Problem] To provide: a vacuum pump that can effectively prevent backflow of particles from the vacuum pump to a vacuum chamber, without the gas molecule exhaust performance of the vacuum pump being impaired, and that is ideal for preven...  
WO/2018/164013A1
[Problem] To achieve a vacuum pump exhaust system, vacuum pump, purge gas feed device, temperature sensor unit and vacuum pump exhaust method with which it is possible to accurately measure the temperature of rotating parts. [Solution] I...  
WO/2018/159213A1
[Problem] To provide: a control device that with a simple heat dissipation structure can reduce costs during component replacement, that can be configured in pumps smaller than pumps have heretofore been, and that is easily manufactured;...  
WO/2018/152578A1
In an aspect, there is disclosed a system (100) for providing ventilation to a ventilated location (101) within a passageway (103). The system (100) includes: a duct (102) arranged to extend between an inlet location (104) to an outlet l...  
WO/2018/151609A1
Fan, turbine or pump with a substantially helically shaped blade, wherein the fluid intake is axially aligned to a longitudinal axis. The blade within the fluid intake portion has a flat and/or concave pressure face, and a root that is h...  
WO/2018/150911A1
[Problem] To provide a controller and a vacuum pump device, which have less vibration, are compact and of low cost, and are configured to enable the heat of a control circuit contained in the controller to be efficiently removed. [Soluti...  
WO/2018/147191A1
[Problem] To realize a vacuum pump having a structure to reduce stress concentration during balance correction by mass elimination, a rotary portion provided in a vacuum pump, and an unbalance correction method. [Solution] According to t...  
WO/2018/145043A1
The present invention provides support frames for positive pressure blowers having one or more wheels mounted at a lower corner of the frame, wherein the wheels are mounted to roll in a direction that is perpendicular to the flow of air ...  
WO/2018/135412A1
[Problem] The present invention addresses the problem of providing a vacuum pump device, whereby the thickness, weight, and size of a vacuum pump control device can be reduced, and cost can be reduced. [Solution] A vacuum pump device (10...  

Matches 1 - 50 out of 5,056