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WO/2021/211345A9 |
A vacuum pump generally comprises a low pressure portion and a high pressure portion separated by a gas impermeable partition. Gas molecules exit the low pressure portion through an opening in the partition and passively impinge on a fea...
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WO/2022/234288A1 |
A fluid routing module (112) for a vacuum pumping system, the fluid routing module (112) comprising: a first fluid inlet (110a); a second fluid inlet (110b); a fluid outlet (114); a first fluid line (200) coupled between the first fluid ...
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WO/2022/229651A1 |
A Holweck drag pump and a method of manufacture of such a drag pump are disclosed. The drag pump comprises: at least one cylinder having a contoured surface formed by hydroforming a metal cylinder. The contoured surface provides helical ...
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WO/2022/220197A1 |
[Problem] To provide a turbo-molecular pump in which a gas adsorption object is placed without an increase in the length of an air inlet in an axial direction due to the gas adsorption object. [Solution] This turbo-molecular pump compris...
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WO/2022/219028A1 |
Vacuum pump (1; 100) comprising a gas injection device (20) comprising at least one pipe (21) configured to be linked to a gas source and to inject a gas flow into the vacuum pump (1; 100) comprising at least one gas flow presence detect...
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WO/2022/219029A1 |
The invention relates to a system (1) for detecting leaks by means of a tracer gas intended to be connected to a sniffing probe to check the airtightness of an object to be tested filled with the tracer gas, comprising a first pumping de...
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WO/2022/210118A1 |
[Problem] To provide a vacuum pump suitable for achieving reduction of the cost of a vacuum pump and simplification of temperature control. [Solution] A vacuum pump 100 comprises: a base part 129; a rotor 103 which is disposed on the bas...
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WO/2022/200148A1 |
The present invention relates to a ventilation system for a greenhouse, comprising: a flexible ventilation duct; a fan provided with a rotor that is rotatable about an axis and comprises a central hub from which blades extend radially; a...
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WO/2022/196560A1 |
[Problem] To provide a vacuum pump in which, even if a rotary blade is damaged, fragments of the rotary blade are not susceptible to scattering from an exhaust port. [Solution] This vacuum pump (100) comprises: a rotary blade (103) which...
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WO/2022/196559A1 |
[Problem] To provide a vacuum pump and exhaust system that can improve workability, at a job site, related to a piping structure part, a connector part, an interface panel, or a nameplate. [Solution] A vacuum pump 100 comprising a pump b...
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WO/2022/194548A1 |
Disclosed is an accessory 10, 10', 10", 10"', 10"" for a kitchen appliance comprising a power unit 20, 20"" with a vacuum pump. The accessory is connected or connectable with the vacuum pump and comprises a mouth element 11, 11', 11", 11...
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WO/2022/196558A1 |
[Problem] To provide a vacuum pump, a vacuum pump control device, and a remote control device with which it is possible to reduce the work load on users and field service engineer. [Solution] A vacuum pump 10 comprises a turbo-molecular ...
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WO/2022/189251A1 |
A method for operating an impeller, in the case of which method the impeller comprises an impeller housing (15) and a motor housing (19) which is arranged in the impeller housing. A motor (16) is arranged in an interior space (36, 38) of...
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WO/2022/189633A1 |
Method for operating a vacuum pump wherein first the humidity in the vacuum pump and/or humidity of an environment of the vacuum pump is determined and if the determined humidity is above a pre-set threshold generating a control signal t...
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WO/2022/187421A1 |
A blower includes a rotor, a motor adapted to drive the rotor, at least one bearing to rotatably support the rotor, a stationary component, and a bearing sleeve provided to the stationary component. The bearing sleeve is structured and a...
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WO/2022/184739A1 |
The present invention provides a stator assembly for a single pump stage of a vacuum pump. The stator assembly comprises a plurality of substantially axially aligned stator arrays. The stator assembly further comprises a first sector (14...
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WO/2022/186076A1 |
[Problem] To provide a vacuum pump that can improve cleaning performance. [Solution] The present invention comprises a heater 11, purge gas introduction ports 12, 13, a purge gas valve 14, and an evacuation valve 16. A cleaning operation...
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WO/2022/186075A1 |
[Problem] To obtain a vacuum pump having a favorable allowable flow rate, while suppressing accumulation of deposits. [Solution] This vacuum pump is provided with: a rotor; a plurality of stator parts having a gas compression function an...
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WO/2022/181464A1 |
[Problem] To provide a vacuum pump capable of preventing entry of foreign matter such as particles caused by processing gas during processes and the like for manufacturing a semiconductor wafer. [Solution] The present invention comprises...
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WO/2022/176745A1 |
[Problem] To provide a vacuum pump with which it is possible to reduce stress generated in a connecting part of a rotating body and a rotating shaft. [Solution] This vacuum pump is provided with a rotating body 103 which includes rotatin...
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WO/2022/175870A1 |
A guide vane optimized for fully reversible turbomachinery where the guide vane is substantially planar, and has a profiled first edge and an opposite symmetrical second edge. The profiled first edge may include a first arc and a second ...
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WO/2022/167755A1 |
The present invention relates to an internal ring (17) for supporting the variable pitch blades of a turbomachine axial compressor rectifier, comprising at least two ring sectors (170), assembled so as to form said inner ring, each ring ...
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WO/2022/169951A1 |
A multi-stage compressor assembly is disclosed. Each of the stages (112) of the compressor assembly has rows of blades (202, 204) arranged to rotate in counter-opposite directions, and this is effective to produce relatively high specifi...
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WO/2022/163341A1 |
Proposed are: a vacuum pump which can suppress a temperature increase of a fixed blade caused by heat from a heating source without increasing the number of components; and a spacer used in said vacuum pump. The present invention is a va...
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WO/2022/158336A1 |
A vacuum pump (100) according to the present embodiment comprises: a rotational solid (103) that has a rotating shaft (113) and a through-hole (220) through which the top part of the rotating shaft (113) is passed, and that is provided w...
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WO/2022/153981A1 |
Provided are a vacuum pump and a rotating body thereof, with which stress corrosion cracking of the rotating body can be effectively prevented, and which have excellent corrosion resistance. In a vacuum pump (such as a turbo molecular pu...
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WO/2022/148745A1 |
A heating device (103) for a vacuum line (100) in which pumped gases are intended to circulate, characterized in that it comprises at least one radiating body (20) configured to radiate in the infrared when it is heated to a temperature ...
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WO/2022/145292A1 |
[Problem] To provide a vacuum pump and a control device with which: cost reduction and space saving are achieved by performing heater control of piping, which is performed to suppress the precipitation of deposits from a process gas, and...
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WO/2022/128624A1 |
A bearing assembly for mounting a rotatable shaft of a pump and a pump having such a bearing assembly are disclosed. The bearing assembly comprises: a bearing comprising an inner ring and an outer ring; a shield extending between the inn...
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WO/2022/129888A1 |
Aspects and embodiments described relate to a bearing wear monitoring apparatus configured to monitor bearings of a vacuum pump having an electric motor comprising a rotating assembly. The monitoring apparatus comprises: input reception ...
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WO/2022/131035A1 |
[Problem] To obtain a vacuum pump which suppresses an influence on external pipes caused by a poor contact of a rotor during the rotation of the rotor. [Solution] This vacuum pump is provided with a heating ring 301, wherein: a discharge...
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WO/2022/128636A1 |
A bearing assembly for mounting a rotatable shaft of a pump and the pump are disclosed. The bearing assembly comprises: a bearing comprising an outer ring and an inner ring; a bearing support configured to support the outer ring of the b...
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WO/2022/122206A1 |
The invention relates to a device for leakage detection on a test item, comprising: a mass spectrometer (12); an at least three-stage turbomolecular pump (14), the input stage (18) of which is connected to the mass spectrometer (12) and ...
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WO/2022/124240A1 |
Provided is a vacuum pump in which a deterioration in performance due to thermal expansion can be effectively suppressed. This vacuum pump is provided with an exterior body (203) provided with an intake port (101), a rotating body (103) ...
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WO/2022/124239A1 |
[Problem] To provide a vacuum pump in which the number of components can be reduced and the structure can be simplified. [Solution] A vacuum pump characterized by comprising: a casing (127); a rotating body (103) accommodated in the casi...
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WO/2022/110642A1 |
A large-air-amount heat dissipation fan, comprising a fan frame (1), an electric motor mounting base (2), an electric motor and a fan body (3), wherein the electric motor mounting base (2) is fixed to a rear air inlet of the fan frame (1...
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WO/2022/112212A1 |
The present disclosure relates to a rotor assembly (102) for a turbomolecular pump (100). The rotor assembly (102) comprises a rotor shaft (116), a plurality of rotor blades (126) extending from the rotor shaft (116), and a balancing mem...
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WO/2022/112745A1 |
According to a first aspect of the invention, there is provided a drag pumping mechanism for a turbomolecular pump, the drag pumping mechanism comprising an impeller comprising an impeller shaft defining a rotation axis of the impeller a...
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WO/2022/106075A1 |
A turbomolecular vacuum pump (1) configured to drive gases to be pumped from a suction orifice (6) to a discharge orifice (7), the turbomolecular vacuum pump (1) in which the surface of the internal bowl (15) of the rotor (3) arranged fa...
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WO/2022/106085A1 |
Dry vacuum pump (1) comprising: - a stator (2) having at least one compression chamber (3) into which the gases to be pumped are intended to flow, - two rotors (4) configured for rotating in the at least one compression chamber (3) of th...
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WO/2022/097577A1 |
[Problem] To provide a vacuum pump excellent in exhaust performance. [Solution] A vacuum pump according to the present invention comprises: a Siegbahn type exhaust mechanism portion 201 provided with Siegbahn spiral groove portions 262 i...
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WO/2022/090720A1 |
Oil feed nut for providing a lubricant to a bearing of a vacuum pump comprising a first end and an opposite second end and being configured to be connected to a shaft of the vacuum pump. Further, the oil feed nut comprising an oil feedin...
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WO/2022/073454A1 |
A fan apparatus (100) and an air conditioner outdoor unit (10). The fan apparatus (100) comprises a first wind wheel (110) and a second wind wheel (120) that are axially disposed at an interval. The spacing S1 between the first wind whee...
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WO/2022/075229A1 |
[Problem] To provide a vacuum pump suitable for improving the compression ratio and uniformity of pressure inside a chamber, and a vacuum exhaust system which uses said pump. [Solution] A vacuum pump P1 equipped with a cylindrical inner ...
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WO/2022/075228A1 |
[Problem] To provide a vacuum pump that makes it possible to reduce stress without lowering the number of rotations of a rotary cylindrical body (rotor) and to improve exhaust performance, and a rotary cylindrical body that is provided t...
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WO/2022/072798A1 |
Systems and methods for converting ordinary circular rotary motion into any non-circular motion that can be defined as a non-overlapping proper function in polar coordinates are provided. Embodiments disclosed teach how to make and use d...
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WO/2022/069420A1 |
Described herein is a vacuum system configured to mitigate damage or risk associated with a pump malfunction (e.g., an imbalance, a catastrophic failure, etc.). An exemplary vacuum pump includes a housing; a vibration isolator coupled to...
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WO/2022/062076A1 |
Disclosed in the present invention is a low-loss axial flow fan, comprising a housing, and an impeller, an impeller support shaft, and a motor being disposed inside the housing, the impeller being fixedly connected to one end of the impe...
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WO/2022/053856A1 |
The invention relates to a two-stage blower apparatus 120 for a ventilator for providing a respiratory gas for a patient having a multipart blower housing 121 comprising at least one first housing part 122 and a second housing part 132. ...
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WO/2022/054717A1 |
[Problem] To provide a vacuum pump that makes it possible to decrease a flow of gas (the number of gas molecules) toward a gap provided for heat insulation, reduce the amount of a byproduct deposited in the gap, and extend the interval o...
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