US 12,110,890 B2
Rotary compressor and refrigeration cycle device
Masao Ozu, Guangdong (CN); Bin Gao, Guangdong (CN); and Ling Wang, Guangdong (CN)
Assigned to GUANGDONG MEIZHI COMPRESSOR CO., LTD., Guangdong (CN)
Filed by GUANGDONG MEIZHI COMPRESSOR CO., LTD., Guangdong (CN)
Filed on Sep. 27, 2021, as Appl. No. 17/485,775.
Application 17/485,775 is a continuation of application No. PCT/CN2019/115399, filed on Nov. 4, 2019.
Claims priority of application No. 201910785885.3 (CN), filed on Aug. 23, 2019; and application No. 201910785989.4 (CN), filed on Aug. 23, 2019.
Prior Publication US 2022/0010796 A1, Jan. 13, 2022
Int. Cl. F25B 49/02 (2006.01); F04C 18/356 (2006.01); F04C 28/26 (2006.01)
CPC F04C 18/356 (2013.01) [F04C 28/26 (2013.01); F25B 49/02 (2013.01); F25B 2500/18 (2013.01); F25B 2500/26 (2013.01); F25B 2600/0261 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A rotary compressor comprising:
a housing configured to accommodate a motor and a compression mechanism therein;
an exhaust pipe communicated with a high-pressure side of a refrigeration cycle device and coupled to the housing;
a suction pipe coupled to the compression mechanism; and
a liquid reservoir having a first end coupled to the suction pipe and a second end coupled to a first check valve device,
wherein the compression mechanism comprises a pressure equalizer having a bypass hole communicating an inside of the housing with the suction pipe,
wherein, when the motor is stopped, the bypass hole of the pressure equalizer is opened, the first check valve device is closed, and gas in the housing flows into the suction pipe or the liquid reservoir.