Patents by Inventor Dinesh V. Parekh

Dinesh V. Parekh 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).

  • Variable displacement compressor control valve arrangement
    Patent number: 4606705
    Abstract: There is disclosed in a refrigerant compressor whose piston stroke and thereby displacement is controlled by crankcase-suction pressure differential, a control valve that is normally responsive to at least suction pressure to control such differential but is acted on by a solenoid above a prescribed compressor speed to increase the crankcase pressure to discharge pressure to effect minimum piston stroke and thereby minimum displacement to prolong compressor life.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: August 19, 1986
    Assignee: General Motors Corporation
    Inventor: Dinesh V. Parekh