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Internal Combustion Engine and Method

  • US 20070017202A1
  • Filed: 07/18/2006
  • Published: 01/25/2007
  • Est. Priority Date: 03/09/2005
  • Status: Active Grant
First Claim
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1. An internal combustion engine having compression and expansion cylinders, an intake valve for controlling air flow to the compression cylinder, an outlet valve for controlling flow from the compression cylinder, an inlet valve for controlling flow to the expansion cylinder, an exhaust valve for controlling flow from the expansion cylinder, and means for varying the compression ratio of the engine by varying the timing of the inlet and outlet valves.

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