Accessory drive system for an automotive engine

Details Accessory drive system for an automotive engine Accessory drive system for an automotive engine

1995-05-05

1996-07-02

Buiz, Michael Powell

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster or shifter driven by electrical or fluid motor

474136, F16H 708

Patent

active

055316484

ABSTRACT:
An accessory drive system for an automotive engine includes a drive pulley attached to an output shaft of the engine and a flexible drivebelt for connecting the drive pulley with driven pulleys. A tensioner maintains the drivebelt in contact with each of the drive and driven pulleys. The tensioner includes an arm which is rotatably mounted to the engine which has a wheel for contacting the drivebelt. Motion of the arm is controllably damped by a spool valve which controls the flow of hydraulic fluid in a hydrostatically lockable hydraulic cylinder incorporated in the tensioner.

REFERENCES:
patent: 1701820 (1929-02-01), Morse
patent: 3136170 (1964-06-01), Murray
patent: 4761155 (1988-08-01), Kinoshita et al.
patent: 5131889 (1992-07-01), Meckstroth et al.
patent: 5256113 (1993-10-01), Bushman et al.
patent: 5304099 (1994-04-01), Deppe et al.

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