Internal-combustion engines – Frame construction – Horizontal cylinder
Patent
1989-10-23
1992-01-07
Wolfe, Willis R.
Internal-combustion engines
Frame construction
Horizontal cylinder
123195AC, 1231975, 74603, 74606R, 180 24, F07F 700
Patent
active
050781057
ABSTRACT:
An engine having a crank case splitted into upper and lower crank cases, and including a crank shaft and a transmission drive shaft disposed on the split plane between the upper crank case and the lower crank case and a transmission main shaft carried by either one of the upper or lower crank case. The length and the size of the engine can be reduced by the arrangement according to the invention, and a starter motor, a transmission drum and balancers can be arranged efficiently to save space required for mounting the engine.
REFERENCES:
patent: 4550698 (1985-11-01), Konneker
patent: 4572025 (1986-02-01), Mitchell
patent: 4606310 (1986-08-01), Makino
patent: 4633826 (1987-01-01), Tominaga et al.
patent: 4798254 (1989-01-01), Lings
Atsuumi Mamoru
Futakuchi Yorio
Ito Mitsuo
Moulis Tom
Wolfe Willis R.
Yamaha Hatsudoki Kabushiki Kaisha
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