Internal-combustion engines – Two-cycle – Rear compression
Patent
1997-02-26
1997-12-23
Okonsky, David A.
Internal-combustion engines
Two-cycle
Rear compression
123 73PP, 123 65P, F02B 3304
Patent
active
056997612
ABSTRACT:
A two-stroke internal combustion engine in a working machine such as a chain saw has been prone to stalling when the stance of the machine was changed from slanting down to slanting up. Such stalling is minimized when lower longitudinal scavenging passage in the cylinder block of the engine have smaller cross section as compared with upper scavenging passage, and when the crank chamber of the engine includes a flow restricting portion for impeding the flow of liquid fuel into the lower scavenging passage when the stance is changed. The engine has a cylinder block (12), a crankcase (20), scavenging passages (27, 27), and a flow restricting portion (40) on an inner peripheral surface (22a) of the crank chamber (22).
REFERENCES:
patent: 3929111 (1975-12-01), Turner et al.
patent: 4178887 (1979-12-01), Iida
patent: 4329948 (1982-05-01), Fujikawa et al.
patent: 4359975 (1982-11-01), Heidner
patent: 4579093 (1986-04-01), Eanes
patent: 4590897 (1986-05-01), Hundertmark
patent: 4770132 (1988-09-01), Sougawa
patent: 4886021 (1989-12-01), Seeber et al.
patent: 5063887 (1991-11-01), Ozawa et al.
patent: 5085180 (1992-02-01), Torigai
patent: 5251580 (1993-10-01), Torigai
patent: 5284111 (1994-02-01), Geyer et al.
patent: 5471960 (1995-12-01), Nagao et al.
patent: 5490483 (1996-02-01), Tanikake et al.
Miyamoto Masayoshi
Yamaguchi Shiro
Kioritz & Corporation
Okonsky David A.
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