Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle
Patent
1979-03-06
1981-03-24
Feinberg, Craig R.
Internal-combustion engines
Multiple piston, common nonrestrictive combustion chamber
Four-cycle
123 51BD, 123 65A, 123 70R, 123 73A, 123 73S, 123 73AF, F02B 2508, F02D 3904, F02B 3322
Patent
active
042573653
ABSTRACT:
A two-stroke cycle diesel engine having at least one two-stroke cycle power cylinder-piston assembly incorporating uniflow scavenging and having two horizontally opposed pistons, at least first and second scavenging ports and two crankcases which may perform crankcase compression; a pump assembly including at least one scavenging pump cylinder-piston assembly of the reciprocating type which is separate from and is driven by the power cylinder-piston assembly; a scavenging air introducing device which introduces scavenging air compressed by the pump assembly to the first and the second scavenging ports through first and second passage systems, respectively; and a fume generating device incorporated in the second passage system and supplying fuel mist in an initial part of the air supplied through the second passage system; wherein the fume is supplied as stratified with exhaust gases so as to be heated by the exhaust gases toward decomposition and then the first passage system is interrupted before the pump assembly reaches its top dead center so that thereafter the scavenging air compressed by the pump assembly is all supplied to the second scavenging port thereby generating strong swirl flows in the power cylinder.
REFERENCES:
patent: 1077956 (1913-11-01), Fox
patent: 1077992 (1913-11-01), McLean
patent: 1404551 (1922-01-01), Seymour
patent: 2347444 (1944-04-01), Vincent
patent: 2393342 (1946-01-01), Schneider
patent: 2522649 (1950-09-01), Tenney
patent: 3687118 (1972-08-01), Nomura
patent: 4185596 (1980-01-01), Noguchi et al.
Igarashi Isao
Noguchi Masaaki
Tanaka Yukiyasu
Feinberg Craig R.
Toyota Jidosha Kogyo Kabushiki Kaisha
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