公开(公告)号：WO2022203598A1

公开(公告)日：2022-09-29

申请号：PCT/SG2022/050151

申请日：2022-03-21

Applicant: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE

Inventor： YAMAOKA, Masakazu ,  LEE, Quan Feng Victor ,  CHEANG, Cheow Bin ,  DE OCAMPO, Grace Cyl. ,  ONG, Khai Huat

IPC: F04B39/12 ,  F04B39/06 ,  F04B35/04

Abstract: Suction arrangements in hermetic compressors are disclosed. A hermetic compressor comprises: a hermetic shell having a hermetically sealed interior; a suction tube passing through the hermetic shell and having a suction tube outlet within the hermetically sealed interior; a cylinder block arranged within the hermetic shell and defining a compression chamber; a cylinder head forming a closed end of the compression chamber; a suction muffler having a suction muffler inlet opening within the hermetically sealed interior; and a discharge tube passing through the hermetic shell and in communication with the closed end of the compression chamber, the hermetic compressor being configured to draw a refrigerant into the compression chamber from suction tube outlet through the suction muffler, and to compress the refrigerant in the compression chamber such that compressed refrigerant passes through the closed end of the compression chamber and into the discharge tube, wherein the suction tube outlet is arranged to direct refrigerant flowing from the suction tube towards a surface of the cylinder head such that refrigerant flows over the surface of the cylinder head before entering the suction muffler inlet.