Hydraulic operating device and gearbox provided with such an operating device
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United States of America Patent
Stats
-
Jan 12, 1999
Grant Date -
N/A
app pub date -
Apr 11, 1997
filing date -
Oct 13, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Hydraulic operating device, in particular for the operation of a selector fork of a gearbox, and gearbox provided with such an operating device. The device comprises a double-acting cylinder, which is coupled to the selector fork, and a reversible pump. The pump is connected to the working chambers of the cylinder by supply lines. A valve is mounted in each of the supply lines which is operated by fluid flow. This valve comprises a body, a bore formed in the body, a piston, which divides the bore into two chambers, a through-channel, formed in the piston and designed as a flow orifice, connecting the two chambers.
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