Multi-cylinder two-cycle engine having improved transfer passage

Details Multi-cylinder two-cycle engine having improved transfer passage Multi-cylinder two-cycle engine having improved transfer passage

1990-05-01

1992-05-19

Okonsky, David A.

Internal-combustion engines

Two-cycle

Rear compression

123 73PP, F02B 7522

Patent

active

051138107

ABSTRACT:
A plurality of cylinders have a predetermined firing order. The crank case of the engine is divided by partitions so that each piston has its own crankchamber. Air is induced into the crank chambers via reed valves and subject to compression as the respective piston descends. Transfer ports are provided which open when the pistons have descended by a predetermined amount from TDC and which inject scavenging air from the crankchamber of the previous cylinder on the firing order, into the combustion chamber of the instant cylinder.

REFERENCES:
patent: 4033302 (1977-07-01), Jarnuszkiewicz
patent: 4233717 (1980-11-01), Noda et al.
patent: 4628888 (1986-12-01), Duret
patent: 4690109 (1987-09-01), Ogasahara et al.
patent: 4787344 (1988-11-01), Okumura et al.
patent: 4892066 (1990-01-01), Brown
patent: 4898127 (1990-02-01), Phillips et al.
patent: 4899698 (1990-02-01), Thery
patent: 4917053 (1990-04-01), Okazaki et al.
patent: 4944255 (1990-07-01), Duret

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