Heat engine

Details Heat engine Heat engine

1985-05-15

1986-11-11

Husar, Stephen F.

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...

60517, F02G 104

Patent

active

046214976

ABSTRACT:
A heat engine including a closed case having a cylindrical chamber with circumferential heat transfer surfaces in the form of radially projecting ribs. A displacer having complementary ribs around the outer surface is rotatably mounted within the chamber. Some of the displacer ribs are removed leaving a working space containing working fluid. A cylinder in the displacer opens into the working space and a piston reciprocates within the cylinder as the displacer rotates so as to alter the volume of the working space. Different parts of the circumference of the case are maintained at different temperatures during operation so that the working fluid is subjected to changes of temperature and pressure during operation. Apart from the basic sinusoidal movement of the piston a superimposing lower amplitude oscillation may be applied to provide control of the thermodynamic operating cycle.

REFERENCES:
patent: 3483694 (1969-12-01), Huber et al.
patent: 3677027 (1972-07-01), Granryd
patent: 4138847 (1979-02-01), Hill
patent: 4179890 (1979-12-01), Hanson

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