Auxiliary device driving unit driven by a vehicle engine

Details Auxiliary device driving unit driven by a vehicle engine Auxiliary device driving unit driven by a vehicle engine

1985-12-17

1987-07-14

Pekar, John A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74191, 74796, F16H 1516

Patent

active

046794565

ABSTRACT:
An auxiliary device driving unit connectable to an engine of a vehicle has a frictional transmission type stepless speed-change gear with a differential planetary structure disposed in a transmission system for transmitting a force from a input shaft connected to the crank shaft of the engine to a pulley for driving auxiliary devices. Control of change in speed is performed by shifting a speed-change ring as an element of speed-changing in the axial direction of the input shaft. An actuator for shifting the speed-change ring is constituted by an non-contact type electromagnetic brake immovably attached to the stepless speed-change gear, a ring-shaped cam connected to a rotating element of the electromagnetic brake, a cam follower fixed to the speed-change ring to be in contact with a cam surface formed in the cam, and an electric circuit for controlling the electromagnetic brake depending on the condition of operations of the auxiliary devices.

REFERENCES:
patent: 3108494 (1963-10-01), Kell
patent: 3157066 (1964-11-01), Donley et al.
patent: 3182519 (1965-05-01), Grieshaber
patent: 3469473 (1969-09-01), Forster et al.
patent: 4232561 (1980-11-01), Kashihara et al.
patent: 4468984 (1984-09-01), Castelli et al.
Automotive Engineering Magazine, U.S.A., Oct. 1984, p. 50.

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