Motor vehicle gearbox

Details Motor vehicle gearbox Motor vehicle gearbox

2005-03-22

2005-03-22

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid pump and motor in one of plural paths to or from...

Reexamination Certificate

active

06869377

ABSTRACT:
Automated multi-stage gearbox, includes a basic gearbox with a number of gears and a two-stage split gearing coupled in front of and in series with the basic gearbox. Shifting is effected by compressed-air cylinders which are controlled by a control computer (45) which is programmed to put the split gearing in a neutral position in the event of an input signal representing zero throttle.

REFERENCES:
patent: 4294341 (1981-10-01), Swart
patent: 5595551 (1997-01-01), Hedstrom et al.
patent: 5875410 (1999-02-01), Fowler et al.
patent: 6151978 (2000-11-01), Huber
patent: 9850247 (1998-11-01), None
patent: 9902360 (1999-01-01), None
patent: 0003163 (2000-01-01), None

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