Method and apparatus for snubbing the movement of a free, gas-dr

Details Method and apparatus for snubbing the movement of a free, gas-dr Method and apparatus for snubbing the movement of a free, gas-dr

1987-03-03

1988-12-20

Husar, Stephen F.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, F25B 900

Patent

active

047923466

ABSTRACT:
A method and apparatus for snubbing the movement of a free, gas-driven displacer in a cooling engine are disclosed. The reciprocal movement of the free, gas-driven displacer is snubbed in each direction of movement as the displacer approaches top dead center and bottom dead center of its cycle by means of a magnetic snubber. Magnetic repulsion forces are generated between the displacer and the displacer containing cylinder of the cooling engine as the displacer approaches both top dead center and bottom dead center of its cycle. Each magnetic repulsive force is non-linear with respect to the displacer and the corresponding end of the displacer containing cylinder.

REFERENCES:
patent: 3991586 (1976-11-01), Acord
patent: 4475335 (1984-10-01), Davey

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