(19)
(11) EP 0 036 942 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.05.1982 Bulletin 1982/19

(43) Date of publication A2:
07.10.1981 Bulletin 1981/40

(21) Application number: 81101241

(22) Date of filing: 21.02.1981
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 01.04.1980 US 136272

(71) Applicants:
  • Roesch, John A., Jr.
     ()
  • Van Blaricom, Terry M.
     ()

(72) Inventor:
  • Roesch, John A., Jr.
     ()

   


(54) Emission controlled two-cycle engine


(57) An emission controlled two-cycle internal combustion engine is disclosed. The presence of unburned hydrocarbons and oil smoke is substantially reduced by eliminating the use of lubricating oil in the fuel, confining lubricating oil for the engine to the crankcase, purging exhaust gases from the combustion chamber with pressurized fresh air, and timing the injection of fuel into the combustion chamber to occur near the closure of the exhaust port to eliminate the escape of unburned fuel through the exhaust port.






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