公开(公告)号：US20180106520A1

公开(公告)日：2018-04-19

申请号：US15783517

申请日：2017-10-13

Applicant: Emerson Climate Technologies, Inc.

Inventor： Frank S. WALLIS ,  Randall KNICK ,  Diane Belinda PATRIZIO ,  Richard Allen MIU

IPC: F25B49/02 ,  F04B49/02 ,  F04B49/10 ,  F04B49/20

CPC classification number: F25B49/022 ,  F04B49/02 ,  F04B49/10 ,  F04B49/20 ,  F04B2201/0402 ,  F04B2201/0804 ,  F04B2205/01 ,  F25B5/02 ,  F25B41/043 ,  F25B49/005 ,  F25B49/02 ,  F25B2400/075 ,  F25B2500/08 ,  F25B2500/26 ,  F25B2500/28 ,  F25B2600/0261 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2700/15 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/21161 ,  F25B2700/21163 ,  F25B2700/21171

Abstract: A system includes a sensor and a controller for a refrigeration or HVAC system having a compressor. The sensor senses a temperature of the compressor during operation of the compressor. The controller is configured to determine a rate of change of the temperature relative to time and to perform one or more procedures to protect the compressor based on the rate of change of the temperature. The one or more procedures to protect the compressor include shutting down the compressor, throttling a pressure regulator valve of an evaporator associated with the compressor, adjusting an expansion valve associated with the evaporator, reducing speed of the compressor, and partially or wholly unloading the compressor.

公开(公告)号：US20160298627A1

公开(公告)日：2016-10-13

申请号：US15034483

申请日：2014-04-04

Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

Inventor： Keith Michael KNIPPEN ,  Guoping WU ,  Richard Allen MIU ,  Michael J. MONNIN

IPC: F04C28/18 ,  F25B31/02 ,  F04C29/00 ,  F04C18/02 ,  F04C28/28 ,  F25B49/02 ,  G05B11/42

CPC classification number: F04C28/18 ,  F04C18/0215 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/40 ,  F25B31/026 ,  F25B49/02 ,  F25B49/022 ,  F25B2600/025 ,  F25B2600/0253 ,  F25B2700/21152 ,  G05B11/42

Abstract: A system for controlling capacity of a compressor comprises a minimum determination module (204) selectively increasing a minimum capacity of a compressor when a temperature of the compressor is greater than a first predetermined temperature; and a control module (104) increasing an actual capacity of the compressor in response to an increase in the minimum capacity. A method for controlling capacity of a compressor is also disclosed. The system and method modulate the capacity of the compressor according to the different temperatures.

Abstract translation: 一种用于控制压缩机容量的系统包括最小确定模块（204），当压缩机的温度大于第一预定温度时，选择性地增加压缩机的最小容量; 以及响应于最小容量的增加而增加压缩机的实际容量的控制模块（104）。 还公开了一种用于控制压缩机容量的方法。 该系统和方法根据不同的温度调节压缩机的容量。