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Fluid-working machine and method of operating a fluid-working machine

  • US 9,133,838 B2
  • Filed: 02/23/2011
  • Issued: 09/15/2015
  • Est. Priority Date: 02/23/2010
  • Status: Active Grant
First Claim
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1. A method of operating a fluid-working machine comprising a plurality of working chambers of cyclically varying volume, each said working chamber operable to displace a volume of working fluid which is selectable for each cycle of working chamber volume, the method comprising:

  • selecting the volume of working fluid displaced by one or more said working chambers during each cycle of working chamber volume to carry out a working function responsive to a received demand signal,selecting the volume of working fluid displaced by a working chamber of said plurality of working chambers during a cycle of working chamber volume taking into account an availability of the other said working chambers to displace fluid to carry out the working function, anddetermining that a second of said working chambers is unavailable to carry out the working function and responsively causing a first of said working chambers to execute an active cycle instead of an idle cycle.

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