公开(公告)号：US12098722B2

公开(公告)日：2024-09-24

申请号：US17752216

申请日：2022-05-24

Applicant: Haier US Appliance Solutions, Inc.

Inventor： Joseph Wilson Latham

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

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

Abstract: 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：US11994078B1

公开(公告)日：2024-05-28

申请号：US18074782

申请日：2022-12-05

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F02C9/30 ,  F16K31/04

CPC classification number: F02C9/30 ,  F16K31/046 ,  F04C2270/18 ,  F04C2270/585

Abstract: A system includes a variable displacement pump (VDP) with a pump inlet and a pump outlet. The VDP is configured to receive a flow at the pump inlet at a first pressure and to outlet a flow from the pump outlet at a second pressure elevated relative to the first pressure. The VDP includes a variable displacement mechanism configured to vary the second pressure. A controller is operatively connected to a pressure sensor and to the variable displacement mechanism for control of the VDP. An output splitter is configured to split flow from the pump outlet to a first outlet branch and to a second outlet branch for supplying two different systems each having a different pressure schedule. The output splitter is operatively connected to the controller, which is configured to control the output splitter to regulate pressure in both of the first and second outlet branches.

公开(公告)号：US11815095B2

公开(公告)日：2023-11-14

申请号：US17400141

申请日：2021-08-12

Applicant: Raymond Zhou Shaw ,  Yi Rong ,  Bin Wu

Inventor： Raymond Zhou Shaw ,  Yi Rong ,  Bin Wu

IPC: F04C25/02 ,  F04C28/24 ,  F04C28/08 ,  F04C28/02 ,  F04C23/00 ,  F04C18/12

CPC classification number: F04C25/02 ,  F04C18/126 ,  F04C23/003 ,  F04C28/02 ,  F04C28/08 ,  F04C28/24 ,  F04C2220/10 ,  F04C2270/05 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/42 ,  F04C2270/44

Abstract: A power saving vacuuming pump system is based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps includes an input valve at an input end of a vacuum space for receiving gas mixture of saturation water vapor and non-condensed air from a condenser of a power plant; a first root vacuum pump connected to the input valve for receiving gas mixture from the input valve and then compressing the gas mixture; a second root vacuum pump connected to the first root vacuum pump for receiving gas mixture from the first root vacuum pump and then compressing the gas mixture. Inner connection walls between the vacuum chamber and the two bearing chambers are installed respective bearings which are installed to be around the driving shaft, and thus all the vacuum chamber and the two bearing chambers are tightly sealed. The vacuum chamber is completely dried so as to prevent from internal emulsion.

公开(公告)号：US20230340957A1

公开(公告)日：2023-10-26

申请号：US18214887

申请日：2023-06-27

Applicant: Industrial Vacuum Transfer Services USA, LLC

Inventor： Randall Earl Thomas

IPC: F04C25/02 ,  F04C18/16 ,  F04C23/02 ,  F04C29/04 ,  F04C29/06 ,  F04C28/00

CPC classification number: F04C25/02 ,  F04C18/16 ,  F04C23/02 ,  F04C29/04 ,  F04C29/06 ,  F04C28/00 ,  F04C2220/10 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/20

Abstract: Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may include a compressor housing having a vacuum source, a cooling system, and a vacuum controller. The vacuum source may include a compressor powered by an electric motor and positioned to cause a vacuum flow between the source of the material, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The compressor housing and sound attenuation chamber of the vacuum generation and sound attenuation assembly may be arranged compactly on a common chassis for ease of transport and deployment.

公开(公告)号：US20230265846A1

公开(公告)日：2023-08-24

申请号：US17921483

申请日：2021-04-27

Applicant: VOGELSANG GMBH & CO. KG

Inventor： MICHAEL ROLFES ,  Nadja Hüdepohl ,  Peter Hartogh

IPC: F04C14/28 ,  F04C2/16

CPC classification number: F04C14/28 ,  F04C2/16 ,  F04C2240/81 ,  F04C2270/06 ,  F04C2270/12 ,  F04C2270/18 ,  F04C2270/19

Abstract: An eccentric screw pump hasa pump housing having a pump inlet opening and a pump outlet opening, a stator disposed in the pump housing, a rotor disposed in the stator, a drive unit comprising a drive motor and a driveshaft which for transmitting a torque connects the drive motor to the rotor, wherein the rotor for a rotating movement about a rotating axle is guided in the stator, a state sensor for detecting a state variable of the eccentric screw pump, where the state sensor, for detecting a state variable on the rotor or on the driveshaft, is disposed on the rotor or the driveshaft, or is connected to the rotor or the driveshaft by means of a signal line and is disposed so as to be spaced apart from the rotor or the driveshaft.

公开(公告)号：US20180051695A1

公开(公告)日：2018-02-22

申请号：US15237734

申请日：2016-08-16

Applicant: Caterpillar Inc.

Inventor： Michael D. Klimes ,  Corey E. Baxter ,  Daniel S. Brandt

IPC: F04C14/24 ,  F04C2/14 ,  F04C14/18

CPC classification number: F04C14/24 ,  F04C2/088 ,  F04C2/14 ,  F04C2/18 ,  F04C14/18 ,  F04C15/0026 ,  F04C15/0042 ,  F04C2240/30 ,  F04C2270/18

Abstract: A pump for an engine includes a suction chamber, a discharge chamber, and a piston at least partly received within a relief chamber. The piston has first and second passageways provided therein. The second passageway is located closer to a face of the piston than the first passageway. The piston is movable within the relief chamber, so that the volume of the fluid transfer from the suction chamber to the discharge chamber is varied according to a pressure in the relief chamber. The first and second passageways form fluid paths between the suction chamber and the discharge chamber at a first and second pressure in the relief chamber, respectively, the first pressure being less than the second pressure.

公开(公告)号：US20170266769A1

公开(公告)日：2017-09-21

申请号：US15613375

申请日：2017-06-05

Applicant: Emerson Climate Technologies, Inc.

Inventor： Hung M. Pham

IPC: B23P15/26 ,  F25B49/00 ,  F04C28/00

CPC classification number: B23P15/26 ,  F04C28/00 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/80 ,  F25B1/04 ,  F25B49/005 ,  F25B2500/06 ,  F25B2500/19 ,  F25B2700/151 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/2116 ,  F25D2400/36 ,  Y10T29/49353

Abstract: System and methods are provided and include a compressor operable in a refrigeration circuit, a first sensor detecting high-side data indicative of a high-side operating condition of a high-pressure side of the refrigeration circuit, a second sensor detecting low-side data indicative of a low-side operating condition of a low-pressure side of the refrigeration circuit, and processing circuitry. The processing circuitry receives the high-side data and the low-side data, determines a high-side fault, a low-side fault, a severe high-side fault, or a severe low-side fault based on the high-side data and the low-side data, operates the compressor in a limp-along mode by restricting power to the compressor or reducing a capacity of the compressor in response to determining at least one of the high-side fault and the low-side fault, and shuts down the compressor in response to determining at least one of the severe high-side fault and the severe low-side fault.

公开(公告)号：US09518587B2

公开(公告)日：2016-12-13

申请号：US14130540

申请日：2012-08-28

Applicant: Tomoyoshi Yokota ,  Seiichi Kodato ,  Hiroki Kitagawa ,  Kenichi Matsunaga ,  Masahiro Miura ,  Yoshimi Takahashi

Inventor： Tomoyoshi Yokota ,  Seiichi Kodato ,  Hiroki Kitagawa ,  Kenichi Matsunaga ,  Masahiro Miura ,  Yoshimi Takahashi

IPC: F04D25/06 ,  F04B49/08 ,  F04C14/00 ,  F04B41/02 ,  F04B49/06

CPC classification number: F04D25/06 ,  F04B41/02 ,  F04B49/065 ,  F04B49/08 ,  F04B2201/1201 ,  F04B2203/00 ,  F04B2203/0209 ,  F04B2205/00 ,  F04C14/00 ,  F04C2270/18 ,  F04C2270/21

Abstract: An air compressor comprising: a tank (50), a compression mechanism (30), a motor (5) and a control circuit (7). The control circuit (7) includes a CPU (70) and a storing unit (74) which stores a control program, the compressor operation history and a plurality of operation modes. Each of the operation modes is defined by two setting values: a reference restart pressure value and a motor rotational speed value, at least one of these values being different from among the plurality of modes. The control circuit (7) executes one of the plurality of modes as a target mode in which the control unit controls the motor to restart by comparing the pressure in the tank with the reference restart pressure and rotates the motor at the rotational speed of the target mode. The control circuit changes the target mode from the one of the plurality of modes to another one of the plurality of modes based on the compressor operation history.

Abstract translation: 一种空气压缩机，包括：罐（50），压缩机构（30），电动机（5）和控制电路（7）。 控制电路（7）包括存储控制程序，压缩机运行历史和多个操作模式的CPU（70）和存储单元（74）。 每个操作模式由两个设置值定义：参考重启压力值和电动机转速值，这些值中的至少一个与多个模式不同。 控制电路（7）执行多种模式中的一种模式作为目标模式，其中控制单元通过将油箱中的压力与参考重启压力进行比较来控制马达重启，并以目标的转速旋转马达 模式。 控制电路基于压缩机运行历史将目标模式从多种模式中的一种模式改变为多种模式中的另一种模式。

公开(公告)号：US20150367463A1

公开(公告)日：2015-12-24

申请号：US14841058

申请日：2015-08-31

Applicant: Emerson Climate Technologies, Inc.

Inventor： Hung M. Pham

IPC: B23P15/26

CPC classification number: B23P15/26 ,  F04C28/00 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/80 ,  F25B1/04 ,  F25B49/005 ,  F25B2500/06 ,  F25B2500/19 ,  F25B2700/151 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/2116 ,  F25D2400/36 ,  Y10T29/49353

Abstract: A method is provided that includes installing a compressor in a refrigeration system and determining a condenser temperature difference using processing circuitry. The method also includes checking for an overcharge condition or a condenser fan blockage condition when the condenser temperature difference is greater than a high condenser temperature difference value. The method also includes determining a discharge superheat temperature using the processing circuitry and checking for the overcharge condition or the condenser fan blockage condition when the condenser temperature difference is less than the high condenser temperature difference value and the discharge superheat temperature is less than a low discharge superheat temperature value. The method also includes checking for an undercharge condition or an evaporator fan blockage condition when the condenser temperature difference is less than the high condenser temperature difference value and the discharge superheat temperature is greater than a high discharge superheat temperature value. The method also includes completing installation of the compressor when the condenser temperature difference is between the high condenser temperature difference value and the low condenser temperature difference value and the discharge superheat is between the high discharge superheat temperature value and the low discharge superheat temperature value.

Abstract translation: 提供了一种方法，其包括将压缩机安装在制冷系统中并且使用处理电路确定冷凝器的温差。 该方法还包括当冷凝器温度差大于高冷凝器温度差值时，检查过充电状况或冷凝器风扇堵塞状况。 该方法还包括使用处理电路确定放电过热温度，并且当冷凝器温度差小于高冷凝器温度差值并且放电过热温度低于低放电时，检查过充电条件或冷凝器风扇阻塞状况 过热温度值。 该方法还包括当冷凝器温度差小于高冷凝器温度差值和放电过热温度大于高放电过热温度值时，检查欠充电状况或蒸发器风扇阻塞状况。 该方法还包括当冷凝器温差在高冷凝器温度差值和低冷凝器温度差值之间并且排放过热处于高排放过热温度值和低排放过热温度值之间时完成压缩机的安装。

公开(公告)号：US08849604B2

公开(公告)日：2014-09-30

申请号：US13114173

申请日：2011-05-24

Applicant: David F. Rowe, Jr.

Inventor： David F. Rowe, Jr.

IPC: G01K7/00 ,  F04C28/28 ,  G06F1/20 ,  F04C28/08 ,  G01K1/02 ,  F25B13/00 ,  G01K7/42 ,  F25B49/02 ,  F04B49/06

CPC classification number: F04C28/08 ,  F04B49/065 ,  F04B2201/0801 ,  F04B2205/05 ,  F04B2207/03 ,  F04C28/28 ,  F04C2270/18 ,  F04C2270/195 ,  F04C2270/46 ,  F04C2270/86 ,  F25B13/00 ,  F25B49/02 ,  G01K1/026 ,  G01K7/42 ,  G06F1/206

Abstract: A method for calculating the probability of moisture build-up in a compressor includes the steps of sensing a temperature of the ambient air, sensing a discharge pressure of the compressor, sensing a temperature of the compressor, processing the ambient air temperature and operating pressure sensed to obtain a required temperature at which condensation will form, and comparing the temperature of the compressor to the required temperature.

Abstract translation: 用于计算压缩机中的水分累积概率的方法包括以下步骤：感测环境空气的温度，感测压缩机的排出压力，感测压缩机的温度，处理环境空气温度和感测到的操作压力 以获得形成冷凝的所需温度，并将压缩机的温度与所需温度进行比较。