Electrohydraulic fan control

Details Electrohydraulic fan control Electrohydraulic fan control

1994-12-09

1996-07-02

Kamen, Noah P.

Internal-combustion engines

Cooling

Automatic coolant flow control

F01P 702

Patent

active

055311903

ABSTRACT:
An electrohydraulic fan control system includes an engine, a hydraulic pump, hydraulic lines, a hydraulic cooling fan, and a solenoid controlled hydraulic valve. The engine includes an electronic control circuit which generates a control signal based on various temperature sensors which is used by the hydraulic valve to control the speed of the cooling fan.

REFERENCES:
patent: 4348990 (1982-09-01), Nolte et al.
patent: 5165377 (1992-11-01), Hosseini
patent: 5216983 (1993-06-01), Nilson
patent: 5359969 (1994-11-01), Dickrell et al.
Technical Paper entitled "SAE Technical Paper Series" dated Sep. 1985--See particularly page 101, paragraph 6).

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