公开(公告)号：US12129841B2

公开(公告)日：2024-10-29

申请号：US17428918

申请日：2020-02-20

申请人： Edwards Limited

发明人： Gerald Robin Shelley ,  Peter George Stammers ,  Brian Stuart Blakeley Roberts

IPC分类号： F04B37/14 ,  F04B41/06 ,  F04B49/00 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04B49/22 ,  F04C25/02 ,  F04C28/02 ,  F04C28/08 ,  F04C28/28 ,  F04D15/00 ,  F04D17/16 ,  F04D19/04 ,  F04D27/00 ,  F04D27/02

CPC分类号： F04B37/14 ,  F04B41/06 ,  F04B49/007 ,  F04B49/02 ,  F04B49/06 ,  F04B49/20 ,  F04B49/22 ,  F04C25/02 ,  F04C28/02 ,  F04C28/08 ,  F04C28/28 ,  F04D15/0027 ,  F04D17/168 ,  F04D19/04 ,  F04D27/004 ,  F04D27/0261 ,  F04B2205/09 ,  F04C2220/30

摘要： A vacuum pumping apparatus may include: a common pumping line having a plurality of pumping line inlets and a pumping line outlet, each pumping line inlet being configured to couple with an outlet of an associated plurality of vacuum processing chambers; at least one primary vacuum pump in fluid communication with the pumping line outlet to pump gas from each vacuum processing chamber; and control logic operable to control operation of the primary vacuum pump in response to an indication of an operating state of the plurality of vacuum processing chambers. In this way, the performance of the primary vacuum pump can be adjusted to match the load provided by the processing chambers and when there is an excess capacity, the performance of the primary vacuum pumps can be reduced, which can lead to significant energy savings and reduce wear on the pump.

公开(公告)号：US12098722B2

公开(公告)日：2024-09-24

申请号：US17752216

申请日：2022-05-24

申请人： Haier US Appliance Solutions, Inc.

发明人： Joseph Wilson Latham

IPC分类号： F04C28/08 ,  F04B49/08 ,  F04C18/324 ,  F04C18/356 ,  F04C28/28 ,  F04B49/06 ,  F04C14/12

CPC分类号： F04C28/08 ,  F04B49/08 ,  F04C18/324 ,  F04C18/3562 ,  F04C28/28 ,  F04B49/065 ,  F04C14/12 ,  F04C2240/40 ,  F04C2270/01 ,  F04C2270/03 ,  F04C2270/18 ,  F04C2270/605

摘要： A method of operating a rolling piston compressor includes determining a pressure difference (ΔP) between a discharge pressure (Pd) within a compression volume and a suction pressure (Ps) within a suction volume; determining a pressure ratio (rp) equal to the discharge pressure (Pd) over the suction pressure (Ps); estimating a discharge pressure (Pd) based at least in part on the pressure difference (ΔP) and the pressure ratio (rp); determining that the discharge pressure (Pd) is greater than a predetermined pressure limit (Pd-limit); and lowering a target speed (ωtarget) of the rolling piston compressor.

公开(公告)号：US11982456B2

公开(公告)日：2024-05-14

申请号：US17597196

申请日：2020-05-13

申请人： Hitachi Industrial Equipment Systems Co., Ltd.

发明人： Kenji Morita ,  Shigeyuki Yorikane ,  Masahiko Takano

IPC分类号： F04C28/06 ,  F04B39/02 ,  F04B39/06 ,  F04B49/06 ,  F04B49/10 ,  F04C18/16 ,  F04C28/28 ,  F24F11/30 ,  F24F11/58 ,  F24F11/61 ,  F24F11/62 ,  F24F11/64 ,  F24F11/65 ,  F24F110/10 ,  F24F110/12 ,  F24F130/10 ,  F25B13/00 ,  F25B49/02 ,  G05B15/02 ,  G05D23/19 ,  F24F140/60

CPC分类号： F24F11/62 ,  F04B39/02 ,  F04B39/06 ,  F04B49/06 ,  F04B49/10 ,  F04C18/16 ,  F04C28/06 ,  F04C28/28 ,  F24F11/30 ,  F24F11/58 ,  F24F11/61 ,  F24F11/64 ,  F24F11/65 ,  F25B13/00 ,  F25B49/022 ,  G05B15/02 ,  F04C2240/81 ,  F05D2270/311 ,  F24F2110/10 ,  F24F2110/12 ,  F24F2130/10 ,  F24F2140/60 ,  F25B2700/2106 ,  G05B2219/2614 ,  G05B2219/2642 ,  G05D23/1951 ,  Y02B30/70

摘要： A position information antenna 22b receives a position signal including position information about a sending source (satellite, base station, or the like) of a positioning radio wave. A communication antenna 22a transmits position information about a compressor 100 (air compressor) that compresses the air and receives meteorological information corresponding to the position of the compressor 100 from a server on a cloud. A controller 13 specifies the position of the compressor 100 from the position signal received by the position information antenna 22b and controls the compressor 100 on the basis of the meteorological information corresponding to the position of the compressor 100 received by the communication antenna 22a.

公开(公告)号：US11976648B2

公开(公告)日：2024-05-07

申请号：US17269101

申请日：2019-11-28

申请人： Hitachi Industrial Equipment Systems Co., Ltd.

发明人： Akihiro Yamamoto ,  Yoshiyuki Kanemoto ,  Daichi Oka

IPC分类号： F04B49/10 ,  F04B49/08 ,  F04C14/28 ,  F04C28/28

CPC分类号： F04B49/103 ,  F04B49/08 ,  F04C14/28 ,  F04C28/28 ,  F04B2201/0801 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0205 ,  F04B2205/05 ,  F04C2270/19 ,  F04C2270/44

摘要： Even when abnormal heat generation occurs during operation in a state where the temperature of a compressor is not increased, abnormality cannot be detected. A fluid machine includes a fluid machine body; a motor that drives the fluid machine body; a temperature sensor that measures a temperature of the fluid machine body; and a control unit that controls the fluid machine body. The control unit changes a temperature threshold value based on at least one of a pressure of a fluid discharged by the fluid machine body and a frequency of a voltage input into the motor, and issues a notification when the temperature of the compressor body measured by the temperature sensor exceeds the temperature threshold value.

公开(公告)号：US20230279858A1

公开(公告)日：2023-09-07

申请号：US18197011

申请日：2023-05-12

申请人： John Lloyd Bowman ,  Ricky Jay Jackson ,  Bryan Patrick Killeen

发明人： John Lloyd Bowman ,  Ricky Jay Jackson ,  Bryan Patrick Killeen

IPC分类号： F04C28/28 ,  F04C2/02

CPC分类号： F04C28/28 ,  F04C2/02 ,  F04C2240/10

摘要： A device for pumping fluid such as paints, sealants, caulks, and polymers made of a rotor assembly and a pump body. The rotor assembly contains at least one laminar flow element arranged in such a manner as to conduct the fluid from inlet to outlet as the rotor spins. The rotor may vary its distance from the pump body. This arrangement provides a rotor with exceptional capacity to pump without damage to the fluid media and to measure the fluid rate at low or high rotational speed with viscosity that can vary. The device also may provide a spray nozzle or nozzles that produce a multiplicity of spray patterns

公开(公告)号：US20230138965A1

公开(公告)日：2023-05-04

申请号：US17917535

申请日：2021-04-06

申请人： Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. ,  Johnson Controls Tyco IP Holdings LLP

发明人： Shengmei Yang ,  Li Wang ,  Kun Lin ,  Zhengxiang Yu

IPC分类号： F04C29/06 ,  F04C18/16 ,  F04C29/12 ,  F04C28/28 ,  F04C29/02 ,  F25B1/047 ,  F25B31/00 ,  F25B49/02

摘要： Disclosed is a screw compressor (100), comprising a screw compressor housing (101), a discharge cavity (113), at least one silencing channel, and at least one adjustment piston, wherein the discharge cavity (113) is defined by at least one part of the screw compressor housing (101); the at least one part of the screw compressor housing (101) defining the discharge cavity (113) forms a wall of the discharge cavity (113); at least one hole is provided in the wall of the discharge cavity (113); the at least one adjustment piston can be inserted into the at least one hole and move therein; the at least one silencing channel is formed by the at least one hole and the at least one adjustment piston, and the at least one silencing channel is in fluid communication with the discharge cavity (113); and the position of the at least one adjustment piston in the at least one hole determines the silencing length of the at least one silencing channel.

公开(公告)号：US11619224B2

公开(公告)日：2023-04-04

申请号：US16324227

申请日：2016-10-31

申请人： Mitsubishi Electric Corporation

发明人： Takaharu Nakamura

IPC分类号： F04B51/00 ,  F04B49/10 ,  F04D27/00 ,  F04C28/28 ,  G01M7/02

摘要： Provided is a degradation diagnostic device, which is configured to perform a diagnosis for degradation of a compressor including a compression mechanism unit to be driven along with a rotational motion of a rotary shaft, and a shell, which is configured to form an outer casing. The degradation diagnostic device includes a vibration detection device to be fixed onto an outer wall of the shell at a position at which the compression mechanism unit is located. The vibration detection device includes: a vibration sensor, which is configured to detect vibration of the compressor; a sensor holding unit including the vibration sensor; a base portion to which the sensor holding unit is connected; and a plurality of projecting portions, which are formed on a surface of the base portion on a side opposite to the sensor holding unit and to be brought into contact with the outer wall.

公开(公告)号：US20230063997A1

公开(公告)日：2023-03-02

申请号：US17797145

申请日：2020-12-29

申请人： Hitachi Industrial Equipment Systems Co., Ltd.

发明人： Tomoyuki KADO ,  Kentaro YAMAMOTO

IPC分类号： F04C28/28 ,  F04C18/16

摘要： In the operation of a refueling screw compressor, when load conditions constantly fluctuate or when the rotation speed control of a cooling fan is performed, it is difficult to accurately perform a diagnosis predicted from measurement results of devices inside the compressor, so a diagnostic mode stably creates an operating condition under which an accurate diagnosis can be performed. In the refueling screw compressor, a discharge electric valve is provided downstream of an air cooler, and an air release electric valve and a dedicated orifice are provided to connect an oil separator inner space and a suction throttle valve space. In the diagnostic mode, the discharge electric valve is closed, the air release electric valve is opened, and while an upstream pressure of the oil separator is maintained at a specified pressure, a rotation speed control operation of a compressor body and the diagnosis of internal devices are performed.

公开(公告)号：US11542945B2

公开(公告)日：2023-01-03

申请号：US16151961

申请日：2018-10-04

申请人： BITZER Kuehlmaschinenbau GmbH

发明人： Tihomir Mikulic ,  Klaus Feller

IPC分类号： F04C29/04 ,  F04C18/08 ,  F25B31/00 ,  F04C29/00 ,  F04B39/12 ,  F04B39/02 ,  F04C14/28 ,  F04C29/02 ,  F04C28/28 ,  F04C18/16 ,  F04C28/06

摘要： A refrigerant compressor unit, including a compressor housing and at least one compressor element that is arranged in the compressor housing, is movable by bearing and drive parts, and operates in at least one compressor chamber, at least one lubricant supply point arranged in the compressor housing for at least one of the bearing and drive parts and/or compressor element, and a lubricant supply line to the at least one lubricant supply point, wherein the lubricant supply line has a lubricant storage chamber through which lubricant flows and in which a lubricant presence sensor is arranged for detecting the presence of lubricant in the lubricant storage chamber.

公开(公告)号：US20220356880A1

公开(公告)日：2022-11-10

申请号：US17624388

申请日：2020-07-01

申请人： Gebr. Becker GmbH

发明人： Stefan BEIERLEIN ,  Sven HILFERT

IPC分类号： F04C28/28 ,  F04C18/344

摘要： The invention relates to a rotary slide assembly and to a method for monitoring the wear of one or more slides in a rotary slide assembly, comprising a rotary slide rotor and one or more slide receiving areas for the slide(s) in the rotary slide rotor. The wear state of the one or more slides is detected during the operation or during a standstill of the rotary slide assembly. For this purpose, the slide(s) or one or more corresponding slide receiving areas in interaction with the one or more slides are used to generate or request an electric or electronic signal.