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Rotary engine combustion arrangement

  • US 3,987,763 A
  • Filed: 04/21/1975
  • Issued: 10/26/1976
  • Est. Priority Date: 04/21/1975
  • Status: Expired due to Term
First Claim
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1. A rotary combustion engine comprising housing means having an inner peripheral wall and oppositely facing side walls, a rotor rotatably mounted in said housing means between said side walls with apexes that remain adjacent said peripheral wall as said rotor rotates, said rotor and said walls cooperatively providing a plurality of chambers spaced around said rotor that expand and contract while moving with said rotor, said housing means having an intake port openable by said rotor for delivering a combustible gaseous mixture to said chambers as they expand in an intake phase prior to contracting in a compression phase, ignition means for igniting the mixture in said chambers following their compression phase to cause their expansion in an expansion phase, said housing means having an exhaust port openable by said rotor for receiving exhaust gases from said chambers as they contract in an exhaust phase, said housing means further having a plenum, and a nozzle in one of said walls openable by said rotor for providing communication between said plenum and said chambers only as they expand during their expansion phase, said nozzle being located relative to said rotor so that said communication is initiated during the gas expansion process but after rapid combustion is complete when the pressure in said plenum is relatively low whereby on establishing said communication said plenum is charged with relatively high-pressure hot gaseous products of combustion from the connected chamber until plenum and chamber pressure are equal and thereafter on continued rotor rotation and lowering chamber pressure below plenum pressure there is caused a relatively hot gaseous jet to be discharged from said nozzle into a trailing portion of the connected chamber during the remainder of the expansion phase to enhance burning of the gases in the trailing portion during the remainder of the expansion phase and into the exhaust phase.

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