Fan drive system for transverse engine

Details Fan drive system for transverse engine Fan drive system for transverse engine

1982-08-05

1986-07-01

Leppink, James A.

Endless belt power transmission systems or components

Power input and output pulleys on nonparallel axes

With common belt engaging both pulleys

474 63, 123 4146, 123 4165, F16H 700

Patent

active

045977461

ABSTRACT:
A system is provided for driving a cooling fan (19) of a vehicle including a transverse, water-cooled engine (E). A main drive pulley (11,13) is driven by the engine and a fan drive assembly (15) is mounted on the vehicle radiator (R) and includes a driven pulley (37). Torque is transmitted from the drive pulley to the driven pulley by means of a power transmission belt (43) including a drive portion (45) and slack portion (47). An idler pulley (55) engages the drive portion of the belt, and a tensioner device (61) and tensioner pulley (69) engage the slack portion of the belt. The tensioning device includes a rotatable arm (65) and is operable to maintain relatively constant belt tension as the engine and drive pulley move relative to the radiator and fan drive assembly.

REFERENCES:
patent: 2596053 (1952-05-01), Stueland
patent: 2691421 (1954-10-01), Swanson
patent: 3498272 (1970-03-01), Roper
patent: 3613645 (1971-10-01), Froumajou
patent: 3951006 (1976-04-01), Fisher et al.
patent: 4040272 (1977-08-01), Boyd
patent: 4187924 (1980-02-01), Deschamps
Corvair, General Design, pp. 6-56.

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