Patents by Inventor Sachio Onoda

Sachio Onoda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotary compressor with clearance volumes to offset pulsations
    Patent number: 4884956
    Abstract: A rotary compressor includes a top clearance volume formed between a cylinder chamber and at least one delivery valve. Another top clearance volume, in communication with the cylinder chamber, produces a reverse flow of compressed fluid which generates pulsations adapted to offset a high frequency component of pulsations generated in the cylinder chamber by compressed fluid reversely flowing from the first top clearance volume to the cylinder chamber. Thereby the high frequency component of pulsations generated in the cylinder chamber is eliminated, and a low-noise rotary compressor is provided.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: December 5, 1989
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Churyo Engineering Kabushiki Kaishi
    Inventors: Makoto Fujitani, Masashi Hirabayashi, Hideo Honda, Hiroshi Machida, Masami Kondo, Sachio Onoda