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Matches 1 - 50 out of 5,116

Document Document Title
WO/2019/202905A1
[PROBLEM] To provide a vacuum pump that can determine the rotation direction and correct the rotation direction without the addition of a dedicated rotation-direction sensor, even if the pump is in a low-speed rotation state. [SOLUTION] ...  
WO/2019/197108A1
The invention relates to a fluid energy machine unit (1) having a fluid energy machine (2) with at least two individual impellers (3, 4) or sets of impellers that are in each case coupled to one another; having a drive machine (5) which ...  
WO/2019/188732A1
[Problem] To provide a vacuum pump with which it is possible to suppress solidification of gas while allowing the pump to operate normally. [Solution] A casing 11 comprising an intake opening 11b for suctioning gas from the outside and a...  
WO/2019/186075A1
The invention relates to a ventilation housing comprising: a ventilation nozzle (3) for receiving a ventilation propeller, the ventilation nozzle (3) having a motor-receiving cavity for receiving a fan motor; and a protective screen (4) ...  
WO/2019/179562A1
For a propeller wheel to be driven in a rotational direction comprising a central drive unit, a hub positioned coaxially relative to the drive unit and comprising radial propeller blades mounted in the hub, an embodiment is provided, whe...  
WO/2019/181705A1
Provided are a vacuum pump and a damper for a vacuum pump having a simple structure and capable of enhancing vibration isolation in a twisting direction, and capable of preventing breaking of and damage to an O-ring and a resilient body ...  
WO/2019/178128A1
A gas pump and processes for preparing the gas pump are presented. The gas pump includes a bottom Holweck stage with internal heaters for cleaning deposits resulting from exhausting gases from a semiconductor manufacturing chamber. One e...  
WO/2019/170555A1
A vacuum pump has stator elements (12) in a pump housing (10). The stator elements (12) cooperate with rotor elements (16). The rotor elements (16) are borne by a rotor shaft (14), wherein the rotor shaft (14) is mounted in the pump hous...  
WO/2019/159855A1
[Problem] To provide a vacuum pump that can efficiently cool an electrical apparatus. [Solution] The present invention comprises: a pump main body 11; and an electrical apparatus case 31 that is arranged on the outside of the pump main b...  
WO/2019/159854A1
[Problem] Provided is a vacuum pump that can efficiently cool electrical apparatuses. [Solution] The present invention comprises: a pump main body 11; and an electrical apparatus case 31 that is arranged on the outside of the pump main b...  
WO/2019/155235A1
The invention provides a rotor assembly for a vacuum pump. The rotor assembly comprises a hub and one or more rotor blade arrays each comprising at least one rotor blade, each rotor blade extending from a rotor blade root contiguous with...  
WO/2019/145679A1
A vacuum apparatus casing (12) to house at least one pumping mechanism or at least one abatement device has internal channelling (60) defining at least one closed heat transfer pathway along which, in use, heat is conducted through the c...  
WO/2019/145737A1
A turbomolecular pump and method of operating the pump. The pump comprises: a stator and a rotor; the rotor being supported for rotation by bearings; a motor for rotating the rotor; wherein the turbomolecular pump is configured to perfor...  
WO/2019/141515A1
The invention relates to a vacuum pump system having at least two chambers (10, 12) which are arranged in series. A turbomolecular pump (18) is connected to the second or final chamber, and a multistage Roots pump (24) is connected to th...  
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...  

Matches 1 - 50 out of 5,116