192 clutches and power-stop control – Clutches – Operators
Patent
1983-01-27
1985-12-03
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Operators
180233, 192 358, 192103R, F16D 2514, F16D 43284
Patent
active
045561346
ABSTRACT:
A system for a four-wheel drive vehicle automatically changes a two-wheel driving system to a four-wheel driving system in accordance with a slipping rate between the wheels. The system is provided with a pressure oil operated clutch for transmitting the power of the engine to auxiliary driving wheels. The clutch is engaged by pressure oil supplied by a pressure oil circuit including a solenoid operated valve. An electric circuit comprising a control device is provided for energizing the solenoid. The control device operates to close the electric circuit in dependency on the slipping rate to energize the solenoid. The energization of the solenoid causes the clutch to engage, so that four-wheel driving power transmission system is established. A manual switch is provided for opening the electric circuit.
REFERENCES:
patent: 1635236 (1927-07-01), Tolson
patent: 3433319 (1969-03-01), McLean
patent: 3841423 (1974-10-01), Holtkamp et al.
patent: 4236595 (1980-12-01), Beck et al.
patent: 4407387 (1983-10-01), Lindbert
patent: 4417641 (1983-11-01), Kageyama
patent: 4433748 (1984-02-01), Satoh et al.
patent: 4467886 (1984-08-01), DeClaire et al.
patent: 4481877 (1984-11-01), Takano et al.
Bonck Rodney H.
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
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