公开(公告)号：AU2003238161A1

公开(公告)日：2004-01-19

申请号：AU2003238161

申请日：2003-06-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： AKASHI HIRONARI ,  KAWABATA HIROTAKA ,  KUBOTA AKIHIKO ,  NAGAO TAKAHIDE ,  KATAYAMA MAKOTO ,  TSUBOI KOSUKE ,  KAKIUCHI TAKASHI ,  KOJIMA TAKESHI

IPC: F04B39/02

Abstract: Relating to oil feed to a piston portion in a dual support bearing of a hermetic compressor, and a structure for improving efficiency and reliability and accomplishing reduction of noise is disclosed. In this structure, since an auxiliary bearing 119 is provided with an oil feed passage 129 for conducting lubricating oil 108 discharged from an upper end of an oil feed mechanism 114, to a sliding surface of a piston 120, the lubricating oil 108 is fed to the piston 120 and a piston pin 122 from the oil feed passage 129 to make the sealing performance excellent, so that the amount of leakage of refrigerant gas from a compression chamber 117 is reduced to improve the freezing capability or efficiency. Further, lubrication of sliding portions of the piston 120 and the piston pin 122 becomes excellent so that noise caused by sliding is reduced and the reliability is improved.

公开(公告)号：BR0312074A

公开(公告)日：2005-03-22

申请号：BR0312074

申请日：2003-06-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： AKASHI HIRONARI ,  KAWABATA HIROTAKA ,  KUBOTA AKIHIKO ,  NAGAO TAKAHIDE ,  KATAYAMA MAKOTO ,  TSUBOI KOSUKE ,  KAKIUCHI TAKASHI ,  KOJIMA TAKESHI

IPC: F04B39/02

Abstract: Relating to oil feed to a piston portion in a dual support bearing of a hermetic compressor, and a structure for improving efficiency and reliability and accomplishing reduction of noise is disclosed. In this structure, since an auxiliary bearing 119 is provided with an oil feed passage 129 for conducting lubricating oil 108 discharged from an upper end of an oil feed mechanism 114, to a sliding surface of a piston 120, the lubricating oil 108 is fed to the piston 120 and a piston pin 122 from the oil feed passage 129 to make the sealing performance excellent, so that the amount of leakage of refrigerant gas from a compression chamber 117 is reduced to improve the freezing capability or efficiency. Further, lubrication of sliding portions of the piston 120 and the piston pin 122 becomes excellent so that noise caused by sliding is reduced and the reliability is improved.

公开(公告)号：AU2003289340A1

公开(公告)日：2004-07-09

申请号：AU2003289340

申请日：2003-12-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA HIROTAKA ,  NAGAO TAKAHIDE ,  KUBOTA AKIHIKO ,  AKASHI HIRONARI ,  TSUBOI KOSUKE ,  KAKIUCHI TAKASHI ,  KATAYAMA MAKOTO ,  KOJIMA TAKESHI

IPC: F04B39/00 ,  F04B39/02 ,  F04B39/12 ,  F04C18/356 ,  F04C29/02 ,  F04C29/12 ,  F16C33/10 ,  F16C33/24

Abstract: A refrigerant compressor includes a compressor section, driver, a first contact section and a second contact section. The compressor section is accommodated in a closed container for compressing refrigerant gas. The driver drives the compressor section. The first and second contact sections are brought into contact with each other or they slide with each other by driving the compressor section. On the surface of each one of the contact sections, at least one of plural recesses uniformly placed or a mixed layer, to which molybdenum disulfide (MoS2) is bound, is formed. The foregoing structure allows increasing the abrasion resistance of the first and second contact sections.