Patents by Inventor William H. McCrum

William H. McCrum 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).

  • Compound engines
    Patent number: 4159699
    Abstract: This invention relates to improving the internal combustion and internal use of fuel in reciprocating engines, and more particularly to reciprocating engines which are compounded in order to effect extension of the expansion event of the four-event work cycle of such engines and which are enabled especially thereby to receive and use, for the furtherance and prolongation of the combustion process, secondary air inducted by such engines or made available by external means, said air being directly applied to the engine's working medium after the original ignition of each fuel/air charge or any equivalent thereof, and during the power-producing period in which that working medium expands.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: July 3, 1979
    Inventor: William H. McCrum
  • Internal combustion compound engines
    Patent number: 4159700
    Abstract: This invention relates to improving the internal combustion and internal use of fuel in reciprocating engines, and more particularly to reciprocating engines which are compounded in order to effect extension of the expansion event of the four-event work cycle of such engines and which are enabled especially thereby to receive and use, for prolonging and substantially improving the combustion process, secondary air inducted and compressed by secondary cylinders of such engines, said air being subsequently applied directly to and into the engine's working medium after the original ignition of each fuel/air charge or any equivalent thereof, and during the power-producing period in which that working medium expands in two coacting cylinders.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: July 3, 1979
    Inventor: William H. McCrum
  • Compound combustion engines and methods of compounding same
    Patent number: 4086882
    Abstract: This invention relates to improving the internal combustion and internal use of fuel in engines, and more particularly to engines which are compounded in order to effect extension of the expansion event of the four-event work cycle of such engines which are enabled especially thereby to receive and use, for the furtherance and prolongation of the combustion process, secondary air made available by such engines and/or other means as specified hereinafter, and separately applied to the said combustion process particularly after the ignition of each fuel/air charge or any equivalent thereof.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: May 2, 1978
    Inventor: William H. McCrum