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Method and apparatus for controlling the operation of a pump

  • US 4,248,194 A
  • Filed: 08/23/1979
  • Issued: 02/03/1981
  • Est. Priority Date: 08/23/1979
  • Status: Expired due to Term
First Claim
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1. A method of controlling the rate at which fuel is supplied to an engine by a fuel pump, said method comprising the steps of determining a series of curves which indicate the manner in which pump output varies with pump operating speed, determining at a first time which one curve of the series of curves is representative of the manner in which fuel pump output varies with pump speed by simultaneously sensing fuel pump operating speed and output pressure during engine operation, and thereafter varying the fuel pump operating speed in accordance with the one curve to provide a desired variation in fuel pump output to the engine.

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