Two-speed transmission with hydraulic actuation of the shifting

Details Two-speed transmission with hydraulic actuation of the shifting Two-speed transmission with hydraulic actuation of the shifting

1981-01-26

1983-10-04

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 12C, 192 18A, 74787, 74572, B60K 4128, G05G 100

Patent

active

044073992

ABSTRACT:
A two-speed transmission with hydraulic actuation of the shifting operations under load for hydrostatically operated work machines, particularly caterpillar-track excavators, having a planetary gearing provided with double planet gears, and having packs of discs which are arranged coaxially around the axis of the sun gear of the planet gearing and which act as a clutch or as a brake, respectively. The planet carrier of the planetary gearing is formed as a flywheel and the shifting step of the transmission which serves for starting the work machine is shifted by means of compression springs, and the parking brake, biased by springs, connects the clutch and the brake non-rotatably relative to the housing of the transmission.

REFERENCES:
patent: 4122926 (1978-10-01), Spanke et al.
patent: 4296650 (1981-10-01), Kalns

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