Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1996-04-15
1997-05-13
McMahon, Marguerite
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
123 73AA, F02M 2507
Patent
active
056282958
ABSTRACT:
This disclosure relates to a two-stroke engine comprising an engine frame forming a cylinder, and a piston mounted for reciprocating movement in the cylinder. The engine frame further includes a crankcase chamber and inlet flow passages for fresh mixture, which form a crankcase compression arrangement. The cylinder includes a cylinder wall having an intake port and an exhaust port. The piston is movable in compression and combustion strokes between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position in the cylinder, and the piston includes a piston skirt. Movement of the piston toward the BDC position opens the intake port and the exhaust port, and fresh mixture flows from the crankcase chamber into the cylinder and scavenges the burned gases through the exhaust port. When the piston moves toward the TDC position, the inlet flow passage is opened which allows fresh mixture to flow into the crankcase chamber. The exhaust port is also opened, and burned gases in the exhaust port are also drawn into the crankcase chamber and combined with the fresh mixture.
REFERENCES:
patent: 1103487 (1914-07-01), Cochran
patent: 3475905 (1969-11-01), Wilford
patent: 4325335 (1982-04-01), Shibata
patent: 4362132 (1982-12-01), Neuman
patent: 4570439 (1986-02-01), Uchinishi
patent: 4622928 (1986-11-01), Uchinishi
patent: 4829946 (1989-05-01), Boyesen
patent: 4848279 (1989-07-01), Luo
patent: 4924819 (1990-05-01), Boyesen
patent: 5081961 (1992-01-01), Paul et al.
patent: 5111778 (1992-05-01), Huang
patent: 5136939 (1992-08-01), Sterbenz et al.
patent: 5203310 (1993-04-01), Gatellier
patent: 5267535 (1993-12-01), Luo
patent: 5273004 (1993-12-01), Duret et al.
patent: 5331927 (1994-07-01), Solomon et al.
patent: 5379732 (1995-01-01), Mavinahally et al.
patent: 5410993 (1995-05-01), Masuda et al.
patent: 5425346 (1995-06-01), Mavinahally
Sommariva Roberto
Todero Giuseppe
McCulloch Italiana Srl
McMahon Marguerite
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