Multi-ratio hydraulic energy dissipater

Details Multi-ratio hydraulic energy dissipater Multi-ratio hydraulic energy dissipater

1984-07-12

1986-11-25

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188289, 188315, 188317, 18832215, F61F 950, B60G 1708

Patent

active

046243461

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.

REFERENCES:
patent: 1655786 (1928-01-01), Guerritore
patent: 2069791 (1937-02-01), Wallace
patent: 3003595 (1961-10-01), Patriquin
patent: 3216535 (1965-11-01), Schultze
patent: 3218052 (1965-11-01), Peterson
patent: 3679069 (1972-07-01), Shaver et al.
patent: 3706362 (1972-12-01), Faure

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