公开(公告)号：US20240085075A1

公开(公告)日：2024-03-14

申请号：US17930807

申请日：2022-09-09

Applicant: Emerson Climate Technology, Inc.

Inventor： Michael M. Perevozchikov ,  Matthew J. Swallow

IPC: F25B49/02 ,  F25B31/02 ,  F25B39/00 ,  F25B41/40

CPC classification number: F25B49/02 ,  F25B31/026 ,  F25B39/00 ,  F25B41/40 ,  F25B2400/07 ,  F25B2400/13 ,  F25B2500/06 ,  F25B2600/2515 ,  F25B2700/21156

Abstract: A vapor compression system includes a primary loop and a secondary loop. The primary loop includes a dynamic compressor operable to compress a refrigerant, a condenser fluidly connected to the dynamic compressor, a first expansion device fluidly connected to the condenser, and an evaporator fluidly connected to the first expansion device and the dynamic compressor. The dynamic compressor includes a housing, a shaft supported in the housing by a bearing, an impeller connected to the shaft, a motor operably connected to the shaft to drive rotation thereof, and a drive operable to control the motor. The secondary loop includes a second expansion device fluidly connected to the condenser, a heat exchanger fluidly connected to the second expansion device, the condenser, and the dynamic compressor, and a supply duct fluidly connected between the heat exchanger and the dynamic compressor to provide a flow of refrigerant to the bearing.

公开(公告)号：US20180073787A1

公开(公告)日：2018-03-15

申请号：US15705926

申请日：2017-09-15

Applicant: TRANE INTERNATIONAL INC.

Inventor： Robert J. Roth

IPC: F25B31/00 ,  F25B49/02

CPC classification number: F25B31/006 ,  F25B1/04 ,  F25B1/10 ,  F25B5/00 ,  F25B41/003 ,  F25B49/02 ,  F25B2600/021 ,  F25B2600/2501 ,  F25B2600/2519 ,  F25B2700/21156 ,  Y02B30/741

Abstract: Systems and methods for controlling a cooling circuit for a variable frequency drive (VFD) in an HVACR system are disclosed. The method includes determining, by a controller, an operating condition of a heat sink associated with the VFD. The controller determines whether a temperature of the heat sink is greater than or equal to a heat sink temperature threshold. The method further includes enabling a bypass flow control device in response to the heat sink temperature being greater than or equal to the heat sink temperature threshold.

公开(公告)号：US20170176076A1

公开(公告)日：2017-06-22

申请号：US15383307

申请日：2016-12-19

Applicant: TRANE INTERNATIONAL INC.

Inventor： Jay H. JOHNSON

IPC: F25B49/02 ,  F25B31/02 ,  G05B19/406 ,  F25B31/00

CPC classification number: F25B49/025 ,  F04D27/001 ,  F04D29/059 ,  F04D29/063 ,  F04D29/584 ,  F05D2260/821 ,  F16C19/546 ,  F16C33/6692 ,  F16C37/007 ,  F16N15/00 ,  F16N29/00 ,  F25B31/002 ,  F25B31/02 ,  F25B2500/16 ,  F25B2500/19 ,  F25B2600/0253 ,  F25B2600/23 ,  F25B2700/21156 ,  G05B19/406 ,  G05B2219/50324 ,  Y02B30/741

Abstract: Methods are directed towards dynamically determining refrigerant film thickness at the rolling-element bearing and for dynamically controlling refrigerant film thickness at the rolling-element bearing. Further, an oil free chiller system is configured for dynamically determining refrigerant film thickness at the rolling-element bearing of the oil free chiller system, wherein the oil free chiller system is also configured for dynamically controlling refrigerant film thickness at the rolling-element bearing of the oil free chiller system.

公开(公告)号：US20130120881A1

公开(公告)日：2013-05-16

申请号：US13738191

申请日：2013-01-10

Applicant: Emerson Climate Technologies, Inc.

Inventor： Nagaraj B. Jayanth ,  Wayne R. Warner

IPC: H02H7/085

CPC classification number: H02H7/0852 ,  F25B49/005 ,  F25B2700/151 ,  F25B2700/2106 ,  F25B2700/21156 ,  F25D29/006 ,  H02H3/08 ,  H02H5/041 ,  H02H7/0833

Abstract: A three-phase electric motor of a compressor receives first, second, and third phases from a three-phase power supply. A method for protecting the motor includes, using a line break protector, disconnecting the motor from only the first phase in response to a temperature being greater than a predetermined temperature threshold. The method also includes measuring a first current flowing through the line break protector, and determining a current value based on the first current independent of current in the second and third phases. The method further includes disconnecting the motor from the first, second, and third phases in response to the current value being less than or equal to a predetermined threshold.

Abstract translation: 压缩机的三相电动机从三相电源接收第一相，第二相和第三相。 用于保护电动机的方法包括使用换行保护器，响应于大于预定温度阈值的温度，将电动机与仅第一相分离。 该方法还包括测量流过断线保护器的第一电流，并且基于与第二和第三相中的电流无关的第一电流来确定电流值。 该方法还包括响应于当前值小于或等于预定阈值将电动机与第一，第二和第三相断开。

公开(公告)号：US06675594B2

公开(公告)日：2004-01-13

申请号：US10179281

申请日：2002-06-26

Applicant: Moon-Chang Choi ,  Kwang-Ha Suh ,  Young-Kwan Kim ,  Yoo-Chol Ji ,  Dae-Sung Wang

Inventor： Moon-Chang Choi ,  Kwang-Ha Suh ,  Young-Kwan Kim ,  Yoo-Chol Ji ,  Dae-Sung Wang

IPC: F25B4100

CPC classification number: F25B31/008 ,  F25B1/053 ,  F25B41/04 ,  F25B2700/21156

Abstract: A cooling system, which includes a compressor for compressing the refrigerant by operation of a motor, a condenser, an expansion means, and an evaporator, comprises a motor cooling device for cooling down the motor by making some of the refrigerant passed the condenser flow to the compressor according to temperature of the motor, and therefore the heat of high temperature generated from the motor in the compressor during the operation of the compressor which is used in the cooling system can be cooled down efficiently.

Abstract translation: 一种冷却系统，其包括通过电动机，冷凝器，膨胀装置和蒸发器的操作来压缩制冷剂的压缩机，包括：电动机冷却装置，用于通过使一些制冷剂通过冷凝器流来冷却电动机 根据电动机的温度的压缩机，因此可以有效地冷却在冷却系统中使用的压缩机的运转期间从压缩机中的电动机产生的高温的热量。

公开(公告)号：US1586798A

公开(公告)日：1926-06-01

申请号：US50515021

申请日：1921-10-03

Applicant: REFRIGERATING SPECIALTIES COMP

Inventor： HANSEN CHARLES C ,  HANSEN HERBERT V

IPC: F25B49/02

CPC classification number: F25B49/027 ,  F25B49/025 ,  F25B2339/047 ,  F25B2600/2519 ,  F25B2700/1933 ,  F25B2700/2104 ,  F25B2700/21152 ,  F25B2700/21156

公开(公告)号：US11725859B2

公开(公告)日：2023-08-15

申请号：US17456749

申请日：2021-11-29

Applicant: TRANE INTERNATIONAL INC.

Inventor： Jay H. Johnson

IPC: F04D27/00 ,  F25B49/02 ,  F16C33/66 ,  F04D29/059 ,  F04D29/063 ,  F04D29/58 ,  F16N15/00 ,  F16N29/00 ,  F16C37/00 ,  F25B31/00 ,  F25B31/02 ,  G05B19/406 ,  F16C19/54

CPC classification number: F25B49/025 ,  F04D27/001 ,  F04D29/059 ,  F04D29/063 ,  F04D29/584 ,  F16C33/6692 ,  F16C37/007 ,  F16N15/00 ,  F16N29/00 ,  F25B31/002 ,  F25B31/02 ,  G05B19/406 ,  F05D2260/821 ,  F16C19/546 ,  F25B2500/16 ,  F25B2500/19 ,  F25B2600/0253 ,  F25B2600/23 ,  F25B2700/21156 ,  G05B2219/50324 ,  Y02B30/70

Abstract: Methods are directed towards dynamically determining refrigerant film thickness at the rolling-element bearing and for dynamically controlling refrigerant film thickness at the rolling-element bearing. Further, an oil free chiller system is configured for dynamically determining refrigerant film thickness at the rolling-element bearing of the oil free chiller system, wherein the oil free chiller system is also configured for dynamically controlling refrigerant film thickness at the rolling-element bearing of the oil free chiller system.

公开(公告)号：US20150330692A1

公开(公告)日：2015-11-19

申请号：US14808405

申请日：2015-07-24

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY

Inventor： William L. KOPKO ,  Andrew John GRAYBILL ,  Glenn Eugene NICKEY ,  Israel FEDERMAN ,  Satheesh KULANKARA

IPC: F25B49/02

CPC classification number: F25B49/022 ,  A63B57/00 ,  F25B1/06 ,  F25B1/10 ,  F25B41/00 ,  F25B49/025 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/01 ,  F25B2600/02 ,  F25B2600/2509 ,  F25B2700/04 ,  F25B2700/151 ,  F25B2700/171 ,  F25B2700/1931 ,  F25B2700/2101 ,  F25B2700/2106 ,  F25B2700/21152 ,  F25B2700/21156 ,  F25B2700/21173

Abstract: A method for controlling an economizer circuit is provided. The economizer circuit includes a valve to regulate refrigerant flow between the economizer and the compressor. The valve can be opened to engage the economizer circuit or closed to disengage the economizer circuit based on the output frequency provided to the compressor motor by a variable speed drive and an operating condition of the economizer.

Abstract translation: 提供了一种用于控制节能器电路的方法。 节能器回路包括用于调节节能器和压缩机之间的制冷剂流量的阀。 阀可以打开以接合节能器回路或关闭以基于通过变速驱动器和节能器的运行状态提供给压缩机电动机的输出频率而使节能器电路脱离。

公开(公告)号：US20150300714A1

公开(公告)日：2015-10-22

申请号：US14432847

申请日：2012-11-21

Applicant: Katsuhiro ISHIMURA ,  Koji YAMASHITA ,  Shinichi WAKAMOTO ,  Naofumi TAKENAKA ,  Fumihiko ISHIZONO

Inventor： Katsuhiro ISHIMURA ,  Koji YAMASHITA ,  Shinichi WAKAMOTO ,  Naofumi TAKENAKA ,  Fumihiko ISHIZONO

IPC: F25B49/02 ,  F25B13/00 ,  F25B41/06 ,  F25B41/04

CPC classification number: F25B49/02 ,  F25B13/00 ,  F25B31/006 ,  F25B41/04 ,  F25B41/046 ,  F25B41/062 ,  F25B2313/003 ,  F25B2313/0233 ,  F25B2313/0272 ,  F25B2313/02743 ,  F25B2313/0291 ,  F25B2313/0314 ,  F25B2500/19 ,  F25B2600/0271 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21156

Abstract: A controller, at least during the heating operation, controls the opening degree of a second expansion device and/or a third expansion device based on a discharge refrigerant temperature detected by a discharge refrigerant temperature detector, or a value computed using the discharge refrigerant temperature, and causes refrigerant having a quality equal to or greater than 0.9 and less than or equal to 0.99 to be suctioned into a compressor.

Abstract translation: 控制器至少在加热操作期间，基于由排出制冷剂温度检测器检测到的排出制冷剂温度或使用排出制冷剂温度计算的值来控制第二膨胀装置和/或第三膨胀装置的开度， 并且使具有等于或大于0.9且小于或等于0.99的质量的制冷剂被吸入压缩机。

公开(公告)号：US20140013782A1

公开(公告)日：2014-01-16

申请号：US13820639

申请日：2011-09-14

Applicant: William L. Kopko ,  Andrew John Graybill ,  Glenn Eugene Nickey ,  Israel Federman ,  Satheesh Kulankara

Inventor： William L. Kopko ,  Andrew John Graybill ,  Glenn Eugene Nickey ,  Israel Federman ,  Satheesh Kulankara

IPC: F25B1/06

CPC classification number: F25B49/022 ,  A63B57/00 ,  F25B1/06 ,  F25B1/10 ,  F25B41/00 ,  F25B49/025 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/01 ,  F25B2600/02 ,  F25B2600/2509 ,  F25B2700/04 ,  F25B2700/151 ,  F25B2700/171 ,  F25B2700/1931 ,  F25B2700/2101 ,  F25B2700/2106 ,  F25B2700/21152 ,  F25B2700/21156 ,  F25B2700/21173

Abstract: A system and method for controlling an economizer circuit is provided. The economizer circuit includes a valve to regulate refrigerant flow between the economizer and the compressor. The valve can be opened to engage the economizer circuit or closed to disengage the economizer circuit based on the output frequency provided to the compressor motor by a variable speed drive and an operating condition of the economizer.

Abstract translation: 提供了一种用于控制节能器电路的系统和方法。 节能器回路包括用于调节节能器和压缩机之间的制冷剂流量的阀。 阀可以打开以接合节能器回路或关闭以基于通过变速驱动器和节能器的运行状态提供给压缩机电动机的输出频率而使节能器电路脱离。