Multi-ratio hydraulic energy dissipater
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United States of America Patent
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Nov 25, 1986
Grant Date -
N/A
app pub date -
Jul 12, 1984
filing date -
Jul 20, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An hydraulic energy dissipater with multiple working ratios, of the telescopic type, comprising a member with a variable cross-section, penetrating into a bore provided on the bottom of a piston and into a chamber provided inside the rod of the piston, which controls, as a function of its position with respect to the bore, the passage of fluid between two working chambers, either through weakly loaded valves or through more strongly loaded valves. The invention is applied more especially to the damping of yaw movements of bogies of railway rolling stock.
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