Method and apparatus for snubbing the movement of a free, gas-driven displacer in a cooling engine
OwnerDomenico S. Sarciainventor
Life of this patent
Estimating the term…
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.
Claims18
A method for snubbing the movement of a free, gas-driven displacer in a cooling engine as the displacer approaches top dead center and bottom dead center of its cycle said method comprising the steps of:
- (1) generating a magnetic repulsion snubbing force between the displacer and the displacer containing cylinder of the cooling engine as the displacer moves in one direction in the cylinder;
- and,
- (2) generating another magnetic repulsion snubbing force between the displacer and the displacer containing cylinder of the cooling engine as the displacer moves in an opposite direction within the cylinder.
A method for snubbing the movement of a free, gas-driven displacer in a cooling engine as the displacer approaches top dead center and bottom dead center of its cycle said method comprising the steps of:
- (1) generating a magnetic repulsion snubbing force between the displacer and one end of the displacer container cylinder of the cooling engine as the displacer approaches said one end;
- and,
- (2) generating a magnetic repulsion snubbing force between the displacer and the other end of the displacer containing cylinder of the cooling engine as the displacer approaches said other end.
In a cooling engine having a free, gas-driven displacer, the improvement comprising:
- a first displacer magnet secured to and movable with the displacer and a first stationary magnet, said first magnets having like magnetic poles facing each other to generate a magnetic repulsion snubbing force as the displacer moves in one direction toward the first stationary magnet;
- and,
- a second displacer magnet secured to and movable with the displacer and a second stationary magnet, said second magnets having like magnetic poles facing each other to generate a magnetic repulsion snubbing force as the displacer moves in a second and opposite direction toward the second stationary magnet.
Dependencies are inferred from the claim text.