Air intake system for two cycle multi cylinder engine

Details Air intake system for two cycle multi cylinder engine Air intake system for two cycle multi cylinder engine

1990-12-04

1992-11-03

Nelli, Raymond A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 52M, 123 73B, F02B 7502, F02B 7518

Patent

active

051599031

ABSTRACT:
Two embodiments of multiple cylinder two cycle internal combustion engines embodying scavenge manifolds that extend around the cylinder bores and which communicate with the cylinder bores through a plurality of circumferentially spaced scavenge ports. The scavenge ports are arranged so that a charge issuing therefrom is not directed toward the exhaust port and the scavenge ports are staggered so as to permit common scavenge manifolds between adjacent cylinder bores to reduce the length of the engine without adversely effecting its breathing ability.

REFERENCES:
patent: 2216491 (1940-10-01), Grantz et al.
patent: 2228832 (1941-01-01), Lieberherr
patent: 2511992 (1950-06-01), Quick
patent: 4191141 (1980-03-01), Franke
patent: 4622929 (1986-11-01), Blair
patent: 4779581 (1988-10-01), Maier
patent: 4907544 (1990-03-01), Barrahm
patent: 4971008 (1990-11-01), Moruhita
patent: 5025760 (1991-06-01), Webb et al.

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