Leaky gas spring valve for preventing piston overstroke in a fre

Details Leaky gas spring valve for preventing piston overstroke in a fre Leaky gas spring valve for preventing piston overstroke in a fre

1989-08-23

1990-08-07

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Unit of mass is a gas which is heated or cooled in one of a...

F02G 104

Patent

active

049457268

ABSTRACT:
The invention is for the prevention of power piston overstroke in a Stirling cycle machine, wherein there is a gas valve which vents the gas spring acting upon the displacer. The valve and its accompanying control system switch on a leak in the gas spring to vent the gas spring upon piston stroke beyond a selected magnitude. This reduces the spring constant which reduces the displacer amplitude and phase lead over the power piston and thereby reduces power output.

REFERENCES:
patent: 3487635 (1970-01-01), Prast et al.
patent: 4183214 (1980-01-01), Beale et al.

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