Hydraulic steering device
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Dec 10, 2012
filing date -
Dec 27, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic steering device is provided comprising a supply port arrangement having a supply port (P) and a return port (T), a working port arrangement having two working ports (L, R), direction valve means (2) arranged between said supply port arrangement and said working port arrangement, at least two fluid meters (3, 4), each of said fluid meters (3, 4) having a movable metering element (12, 15), said metering elements (12, 15) being connected by a shaft (5), said shaft (5) having an axis, selector valve means (6) being provided, said selector valve means (6) in a first position arranging said fluid meters (3, 4) hydraulically in parallel and in a second position shutting off one of said fluid meters (3, 4), said selector valve means (6) having a valve element (20) shiftable in an direction parallel to said axis. It is an object to reduce wear in said hydraulic steering device in a simple manner. To this end said selector valve means (6) are arranged between said two fluid meters (3, 4), said shaft (5) extending through said valve element (20).
First Claim
Family
International Classification(s)
Cited Art Landscape
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