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Patent Searching and Data


Matches 1 - 50 out of 5,006

Document Document Title
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...  
WO/2018/134367A1
The invention concerns a transition duct for a multi-stage compressor of a gas turbine engine. Regions of the inner surface of the duct are provided with a predetermined and dissimilar surface roughness to optimise gas flow efficiency wi...  
WO/2018/134566A1
A multiple stage turbomolecular pump is disclosed. The pump comprises: a higher vacuum stage comprising a plurality of rotor blade rows; a lower vacuum stage comprising a plurality of rotor blade rows of a larger diameter than the rotor ...  
WO/2018/124773A1
The present invention relates to an axial flow fan and, more particularly, to an axial flow fan comprising: a hub; and a plurality of blades that are disposed radially on the circumference of the hub such that roots of the blades are cou...  
WO/2018/123522A1
Provided are a vacuum pump which allows for improved efficiency in on-site maintenance work and which can be configured as a smaller vacuum pump than those of the prior art and be easily manufactured, and a connector and a control device...  
WO/2018/120782A1
A fan speed regulating device and method. The fan speed regulating device comprises: an adjusting unit (101), a collecting unit (102), and a processing unit (103). The collecting unit (102) collects current speed parameters of an externa...  
WO/2018/110467A1
Provided, without lowering exhaust performance or increasing the number of components or costs, is a vacuum pump, a stator column used therein, and a manufacturing method for the same which are suitable and highly reliable in preventing ...  
WO/2018/110466A1
Provided are a vacuum pump and a control device provided to the vacuum pump, with which heat dissipation of regeneration resistance is improved through a simple configuration. Regeneration resistance is removed from the control device an...  
WO/2018/108479A1
The invention relates to a vacuum pump system, comprising a main vacuum pump (10) that is connected to a chamber (14) that is to be evacuated. An auxiliary pump (12) is connected to an outlet of the main vacuum pump (10). Furthermore, a ...  
WO/2018/109480A1
Stator blade unit (1) for a turbomolecular pump comprising an array of polymer stator blades (2), a turbomolecular pump including such a stator blade unit, and to a method of assembling a stator blade unit for a turbomolecular pump.  
WO/2018/104719A1
An improved cooling arrangement for a vacuum pump motor and control is provided; wherein both the motor and control are provided with cooling mechanisms and housed in respective housings connected by at least one opening. The cooling mec...  
WO/2018/096357A1
A pump bearing holder (140) has a carrier portion (148) configured to carry a static set of magnets of a pump magnetic bearing and a support portion (150) extending outwardly of the carrier portion to connect with a pump casing such that...  
WO/2018/084855A1
An electric submersible pump including a housing having a longitudinal axis extending therethrough; and a plurality of stages disposed within the housing each stage having an impeller and a diffuser, the plurality of stages stackable one...  

Matches 1 - 50 out of 5,006