Vehicle hydraulic cooling fan system

Details Vehicle hydraulic cooling fan system Vehicle hydraulic cooling fan system

1992-10-26

1993-06-08

Kamen, Noah P.

Internal-combustion engines

Cooling

Automatic coolant flow control

123 4149, F01P 702

Patent

active

052169839

ABSTRACT:
A hydraulic cooling system for vehicles utilizing a hydraulic pump driven by the vehicle engine, the pump, preferably, having high and low volume chambers, a shroud adapted to be associated with the vehicle engine cooling radiator, a fan driven by hydraulic fluid pressurized by the pump for producing air flow through the shroud and the engine cooling radiator, and the hydraulic circuit between the pump and the fan motor includes a reservoir and a control valve sensitive to the engine coolant temperature. The control valve is located within the reservoir, and the reservoir is mounted upon the shroud and includes heat exchanging fins exposed to the air passage within the shroud. The entire combination of components may be pre-assembled and shipped and installed as a unit.

REFERENCES:
patent: 2777287 (1958-01-01), Tweedale
patent: 3220640 (1965-11-01), Kambs
patent: 3659567 (1972-05-01), Murray
patent: 3934644 (1976-01-01), Johnston
patent: 4062329 (1977-12-01), Rio
patent: 4066047 (1978-01-01), Vidakovic et al.
patent: 4223646 (1980-09-01), Kinder
patent: 4461246 (1984-07-01), Clemente
patent: 4489680 (1984-12-01), Spokas et al.
patent: 4941437 (1990-07-01), Suzuki et al.
patent: 5095691 (1992-03-01), Yoshimura

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