Internal-combustion engines – Cooling – Automatic coolant flow control
Patent
1997-05-02
1999-10-05
Kwon, John
Internal-combustion engines
Cooling
Automatic coolant flow control
123 4149, F01P 702
Patent
active
059607483
ABSTRACT:
A hydraulic cooling system and method for use in a vehicle comprises a hydraulic pump which is coupled to a hydraulic motor for driving a fan blade in operative relationship with a radiator via a hydraulic conduit. The hydraulic conduit is formed and provided to not only hydraulically couple the hydraulic pump to the hydraulic motor, but also to define a support structure for supporting the hydraulic motor in operative relationship with the radiator, without the need for additional support brackets or structure. It is envisioned that the hydraulic conduit could be pre-formed in a general pyramidal or frusto-conical shape to absorb forces exerted by the motor and so that it can easily be assembled and-mounted to the fan shroud. The hydraulic conduit is also formed such that it becomes situated in a heat exchange chamber between the fan shroud and the radiator when the conduit is mounted on the shroud and may comprise a plurality of fins to facilitate cooling the hydraulic fluid traveling through the hydraulic conduit. A logic and priority valve may be coupled to the hydraulic conduit and responsive to an electronic control unit to control the flow directed to the fan motor in order to maximize cooling efficiency.
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Kwon John
Lewis J. Gordon
Valeo Inc.
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