Patents by Inventor Nobutaka Matsuda

Nobutaka Matsuda 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).

  • Controller for absorption cold or hot water generating machine
    Patent number: 6009714
    Abstract: A controller for an absorption cold/hot water generating machine, in which a refrigerating cycle is formed by pipe-connecting an evaporator, an absorber, a solution heat exchanger, a low-temperature generator, a condenser, and a high-temperature generator, and the solution level in a header of the high-temperature generator is kept within a prescribed range by controlling the flow rate of the solution fed from the absorber to the high-temperature generator; wherein a solution pump for feeding a solution from the absorber to the high-temperature generator is inverter-driven, and there is provided pressure difference detecting means for detecting a difference in pressure between the high-temperature generator and the absorber; and wherein there is provided control means which controls the solution pump driving frequency of the inverter as a function of a pressure difference between the high-temperature generator and the absorber.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: January 4, 2000
    Assignee: Ebara Corporation
    Inventors: Syouji Tanaka, Takashi Kaneko, Naoyuki Inoue, Jun Murata, Teruwo Shiraishi, Toshio Matsubara, Nobutaka Matsuda, Motonao Kera