公开(公告)号：WO2018075398A1

公开(公告)日：2018-04-26

申请号：PCT/US2017/056771

申请日：2017-10-16

Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

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

IPC: F25B49/00 ,  F25B49/02

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.

Abstract translation: 系统包括用于具有压缩机的制冷或HVAC系统的传感器和控制器。 传感器在压缩机运行期间感测压缩机的温度。 控制器被配置为确定温度相对于时间的变化率，并且基于温度的变化率执行一个或多个程序以保护压缩机。 保护压缩机的一个或多个程序包括关闭压缩机，节流与压缩机相关的蒸发器的压力调节阀，调节与蒸发器相关联的膨胀阀，降低压缩机的速度，以及部分或全部卸载压缩机