Liquid spring accumulator with self-charging means

Details Liquid spring accumulator with self-charging means Liquid spring accumulator with self-charging means

1982-03-15

1984-05-29

Bryant, III, James E.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

F16L 5504

Patent

active

044508700

ABSTRACT:
A liquid spring accumulator includes a housing having inlet and outlet ports connected to a source of liquid under pressure. The housing contains a high pressure chamber and a cylindrical chamber containing a spring-loaded piston. A rod attached to the piston is movable therewith into the high pressure chamber. A passageway through the axis of the piston and rod provides communication between the inlet port and the high pressure chamber and includes a valve seat. A check valve member in the passageway includes a shaft holding the movable member off its seat during initial flow of hydraulic liquid into cylinder, permitting flow to fill the high pressure chamber. As the liquid pressure increases, the initial movement of the piston permits the check valve to close, and still further increases in pressure cause the piston to force the rod into the high pressure chamber, substantially increasing its hydraulic pressure.

REFERENCES:
patent: 2546055 (1951-03-01), Ballard
patent: 2943642 (1960-07-01), Westcott
patent: 3348579 (1967-10-01), Swift et al.
patent: 3907001 (1975-09-01), Vanderlaan et al.

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