Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent
1987-12-16
1988-10-11
Myhre, Charles J.
Internal-combustion engines
Cooling
With jacketed head and/or cylinder
123 73PP, 123668, F02F 110
Patent
active
047763035
ABSTRACT:
In a two cycle internal combustion engine (2) having a cylinder liner (14), a fuel-air flow passage (52) is provided from the crankcase (8) to the exhaust bridge (38) in the cylinder liner (14) and the exhaust bridge (39) in the cylinder block (12) along the interface between the cylinder liner (14) and the cylinder block (12). A plurality of apertures (57-60) are provided through the cylinder liner (14) communicating with the fuel-air flow passage (52). A second fuel-air flow passage (56) is provided between the piston (4) and the cylinder liner (14) and in communication with the apertures (57-60) to facilitate fuel-air mixture flow through the exhaust bridge (38) to improve lubrication and cooling thereof.
REFERENCES:
patent: 2085810 (1937-07-01), Ljungstrom
patent: 3127879 (1964-04-01), Giacosa et al.
patent: 3687232 (1972-08-01), Stenger
patent: 3714931 (1973-02-01), Neitz et al.
patent: 3881454 (1975-05-01), Jaulmes
patent: 4348991 (1982-09-01), Stang et al.
patent: 4440118 (1984-04-01), Stang et al.
patent: 4557227 (1985-12-01), Woodard
Brunswick Corporation
Myhre Charles J.
Okonsky David A.
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