Patents Assigned to Matusushita Electric Industrial Co., Ltd.
  • Scroll compressor for carbon dioxide supplied with a lubricant
    Patent number: 6827563
    Abstract: According to a scroll compressor of the present invention, lubricant is supplied to a compression chamber in the proportions of 2% by weight or more and less than 20% by weight of the lubricant to the sucked refrigerant amount. With this, it is possible to provide an efficient scroll compressor even when carbon dioxide is used as the refrigerant.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: December 7, 2004
    Assignee: Matusushita Electric Industrial Co., Ltd.
    Inventors: Akira Hiwata, Yoshiyuki Futagami, Noboru Iida, Kiyoshi Sawai