192 clutches and power-stop control – Clutches – Fluent material
Patent
1997-10-14
1999-08-03
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, F16D 3502
Patent
active
059312734
ABSTRACT:
A fluid coupling assembly for driving a cooling fan from an engine comprising a housing (10) defining a fluid chamber (12) having a volume and a drive member rotatably supported in the fluid chamber (12) of the housing (10) for transmitting torque between the housing (10) and the drive member through the shearing action of fluid (14) in the chamber (12). In some embodiments the housing (10) is adapted to drive the fan with the drive member adapted for connection to the engine and in the other embodiments the housing (10) is driven by the engine and the drive member is adapted for connection to the fan. A displacement device means is disposed in the fluid chamber (12) for adjusting the volume of the said chamber (12) to vary the coverage of the drive member by the fluid (14) to vary the shearing action of the fluid (14) to adjust the torque transmitted between the drive member and the housing (10). The assembly is characterized by the displacement devices including a threaded male element (44, 144, 244, 344, 444) and a threaded female element (46, 146, 246, 346, 446) for adjusting the volume of the chamber (12) in response to rotation of the male element relative to the female element, and a motor for rotating the threaded male element (44, 144, 244, 344, 444). The assembly also includes a computer (54) for controlling the motor for rotating the threaded male element (44, 144, 244, 344, 444) in response to various operating conditions.
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BEHR America, Inc.
Bonck Rodney H.
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