Hydraulic control system for continuously variable V-belt transm

Details Hydraulic control system for continuously variable V-belt transm Hydraulic control system for continuously variable V-belt transm

1983-10-20

1985-10-08

Krizmanich, George H.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74864, 74878, 74867, B60K 4112, B60K 4116

Patent

active

045452652

ABSTRACT:
A maximum reduction ratio maintaining valve is fluidly disposed between a drive pulley and a shift control valve which controls the supply of fluid to and discharge thereof from the drive pulley. The maximum reduction ratio maintaining valve drains the drive pulley to set a reduction ratio between the drive and driven pulleys at the largest reduction ratio to facilitate starting a vehicle.

REFERENCES:
patent: 3893344 (1975-07-01), Dantlgraber et al.
patent: 4152947 (1979-05-01), Van Deursen et al.
patent: 4161894 (1979-07-01), Giacosa
patent: 4400164 (1983-08-01), Cadee
patent: 4459878 (1984-07-01), Frank
patent: 4475416 (1984-10-01), Underwood
patent: 4476746 (1984-10-01), Miki et al.
"Kikai Kogaku Binran", issued in 1950, pp. 7-58 and 7-59.

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