Throttle control device

Details Throttle control device Throttle control device

1986-10-23

1989-01-24

Wolfe, Jr., Willis R.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

74505, 74 8918, 180335, F02D 902

Patent

active

047994681

ABSTRACT:
In a motor saw with an engine unit separated from a handle system by devibration elements, difficulties arise by in the use of a link system of iron plate or lever elements in performing a movement transfer without "backlash" etc. As a consequence thereof there is an involuntary speeding of the engine, great inherent moving play, propagation of vibrations between the carburetor and the finger grip, and sizing of elements adapted to every saw model. The invention eliminates these inconveniences by introducing a gear-driven, flexible shaft, e.g. a tightly wound helical spring which can transfer movements to the throttle by turning. The influence of relative movements between the engine and the handles can thus be eliminated.

REFERENCES:
patent: 1710488 (1929-04-01), Oliphant
patent: 2445058 (1948-07-01), Fields
patent: 4144770 (1979-03-01), Landen
patent: 4302880 (1981-12-01), Elfving
patent: 4352303 (1982-10-01), Christner
patent: 4491105 (1985-01-01), Johansson
patent: 4497503 (1985-02-01), Irwin
patent: 4553517 (1985-11-01), Andreasson
patent: 4681198 (1987-07-01), Mas

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