Rotatable shrouded valve for improving a scavenging of 2-stroke

Details Rotatable shrouded valve for improving a scavenging of 2-stroke Rotatable shrouded valve for improving a scavenging of 2-stroke

1995-02-03

1996-06-25

Solis, Erick R.

Internal-combustion engines

Valve

Valve head cooperates with manifold

1231883, 1231887, 251318, F01L 306

Patent

active

055290361

ABSTRACT:
This invention relates to a scavenging shroud mechanism for improving scavenging of a 2-stroke engine, and more particularly to a scavenging shroud mechanism for improving scavenging of a 2-stroke engine which is constructed such that a scavenging shroud mechanism is provided to a scavenging valve whereby compressed air sucked into an interior of a combustion chamber makes a tumble phenomenon along with cylinder wall surface and thereby pushes out already burned burnt gas and simultaneously is capable of efficiently feeding new air so that efficient reverse loop scavenging system is made. The scavenging shroud mechanism has a baffle 2, shroud guide notch 3 and a shroud neck 4, and a fixed supporting pin 6 and a supporting guide 5 provided on the inner side of the intake manifold 9. A shroud guide notch 3 is provided in the baffle 2 so as to permit the scavenging shroud mechanism 1 to up and down-ward movement but not right and left rotational movement.

REFERENCES:
patent: 2768617 (1956-10-01), Tierney, Jr. et al.
patent: 3757757 (1973-09-01), Bastenhof
patent: 4309969 (1982-01-01), Matthes
patent: 4320725 (1982-03-01), Rychlik
patent: 4355604 (1982-10-01), Chaibongsai
patent: 4389988 (1983-06-01), Ong
patent: 4539954 (1985-09-01), Klomp
patent: 4744340 (1988-05-01), Kirby
patent: 5255649 (1993-10-01), Isaka

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