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
Patent
1979-08-06
1981-07-07
Husar, C. J.
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
F16H 712
Patent
active
042772400
ABSTRACT:
A hydraulic tensioning device for maintaining a predetermined amount of tensioning force on an endless drive belt for the vehicle accessories drive system. A self-contained hydraulic fluid supply and pump assembly is mounted on the swinging end of a pivotally mounted lever and is moved toward the drive belt by a hydraulically actuated piston which is mounted in a fixed position on the engine. An idler pulley is rotatably mounted on the fluid supply and pump assembly and is engaged with and driven by the drive belt. The drive belt rotates the idler pulley which hydraulically actuates the piston by driving the pump which supplies hydraulic fluid to the piston from the fluid supply. The piston pivots the lever toward the belt whereupon the idler pulley engages the belt and exerts the desired tensioning force on the belt. Check valves in the pump assembly regulate the amount of hydraulic force applied to the piston and ultimately to the belt. A partition member is slidably mounted within the piston cylinder and compensates for small oil leaks in the piston by reducing the effective volume of the cylinder chamber to maintain a constant tensioning force on the belt tensioning lever when the engine is shut off.
REFERENCES:
patent: 2002081 (1935-05-01), Dow
patent: 2051488 (1936-08-01), Kottlowski et al.
patent: 2703019 (1955-03-01), Burawoy
patent: 2893255 (1959-07-01), Bayliss
patent: 3132596 (1964-05-01), Dinger
patent: 3142193 (1964-07-01), Polko et al.
patent: 3413866 (1968-12-01), Ford
patent: 3631734 (1972-01-01), Wagner
patent: 3768324 (1973-10-01), Vanderstegen-Drake
patent: 3812733 (1974-05-01), Yoshida
patent: 3924483 (1975-12-01), Walker et al.
patent: 3965768 (1976-06-01), Foster
patent: 3975965 (1976-08-01), Speer
patent: 3986407 (1976-10-01), Naggert
patent: 4077272 (1978-03-01), Busso
patent: 4094205 (1978-06-01), Cook
patent: 4144772 (1979-03-01), Brackin et al.
Berman Conrad
Dyneer Corporation
Husar C. J.
LandOfFree
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