公开(公告)号：WO2018208615A1

公开(公告)日：2018-11-15

申请号：PCT/US2018/031194

申请日：2018-05-04

Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

Inventor： MUNROE, Michael R.

IPC: F25B49/02 ,  F25B31/00

Abstract: Systems and methods are provided and include a compressor for a refrigeration system and a duct assembly that includes a duct frame and a sensor unit. The duct frame provides a path for evaporating refrigerant from a lubricant sump of the compressor. The sensor unit obtains temperature measurements of the refrigerant and a lubricant within the lubricant sump and heats and evaporates the refrigerant located within the duct frame of the duct assembly. A control module receives temperature measurements from the sensor unit, determines a presence of liquid refrigerant within the lubricant sump of the compressor in response to a determination that an actual temperature change does not correspond with an expected temperature change for the lubricant, and in response to a determination that the actual temperature change corresponds with the expected temperature change for the lubricant, operates the compressor.

公开(公告)号：EP3622230A1

公开(公告)日：2020-03-18

申请号：EP18798828.2

申请日：2018-05-04

Applicant: Emerson Climate Technologies, Inc.

Inventor： MUNROE, Michael R.

IPC: F25B49/02 ,  F25B31/00