Hydraulic linear drive of a transmission actuator

Details Hydraulic linear drive of a transmission actuator Hydraulic linear drive of a transmission actuator

2008-03-25

2008-03-25

Lorence, Richard M. (Department: 3681)

Machine element or mechanism

Gearing

Interchangeably locked

C475S116000, C475S128000, C192S083000, C192S083000, C091S437000

Reexamination Certificate

active

07347117

ABSTRACT:
A hydraulic linear drive for a hydraulic vehicle transmission actuator has a piston/cylinder unit in which an adjusting piston is arranged so it is longitudinally displaceable in a cylinder housing and subdivides the cylinder space into at least two pressure spaces which can receive hydraulic oil through control lines. The optional pressure action on the two pressure spaces is controllable by a shift valve. A connecting line is provided between the two control lines leading to the pressure spaces and a control valve is provided for optionally releasing or blocking the connecting line to further control the pressure force acting on the piston.

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Translation of German Publication mentioned in Specification entitled: “Toothed Gearing”, Second Edition vol. 26, Springer Verlag, 5 pages.
Looman, Johannes, Zahnradgetriebe [Gear Wheels], 2ndEdition, pp. 158-160, vol. 26, with 5 pages (English translation).

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