US Patent Issued to JOHNSON CONTROLS AIR CONDITIONING AND REFRIGERATION (WUXI), Tyco Fire & Security on May 13 for "Screw compressor, refrigeration system, and method for controlling refrigeration system" (Chinese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,835, issued on May 13, was assigned to JOHNSON CONTROLS AIR CONDITIONING AND REFRIGERATION (WUXI) Co. LTD. (Wuxi, China) and Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).

"Screw compressor, refrigeration system, and method for controlling refrigeration system" was invented by Shengmei Yang (Wuxi, China), Li Wang (Wuxi, China), Kun Lin (Wuxi, China) and Zhengxiang Yu (Wuxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a screw compressor (100), comprising a screw compressor housing (101), a discharge cavity (113), at least one silencing channel, and at least one adjustment piston, wherein the discharge cavity (1...