Pump drive structure for a two-cycle engine

Details Pump drive structure for a two-cycle engine Pump drive structure for a two-cycle engine

1998-01-30

1999-12-28

Oberleitner, Robert J.

Internal-combustion engines

Vibration compensating device

Balancing arrangement

74591, 74 1563, 180190, F02B 7506

Patent

active

060067152

ABSTRACT:
To provide a pump drive structure capable of making a vehicular width more compact. A drive side pulley of a V-belt transmission is mounted on a right end of a crank shaft provided on an engine. A balancer drive gear is provided on the crank shaft opposite to the drive side pulley in the axial direction. The balancer drive gear is meshed with a balancer driven gear on a balancer shaft disposed in parallel to and directly under the crank shaft. Further, a pump drive gear provided at an axial end of the balancer shaft is meshed with driven gears of pump shafts of the water pump and the oil pump distributed on the front and rear sides of the balancer shaft. Thus, the water and oil pumps are simultaneously driven by the balancer shaft.

REFERENCES:
patent: 5172786 (1992-12-01), Ishibashi et al.
patent: 5174257 (1992-12-01), Ozawa
patent: 5191859 (1993-03-01), Fujiwara
patent: 5218885 (1993-06-01), Nakano et al.
patent: 5542387 (1996-08-01), Okubo
patent: 5588405 (1996-12-01), Sawa et al.
patent: 5829401 (1998-11-01), Masuda

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