Displacer arrangement for external combustion engines

Details Displacer arrangement for external combustion engines Displacer arrangement for external combustion engines

1987-07-06

1988-10-04

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...

60517, 60522, F02G 104

Patent

active

047748087

ABSTRACT:
An external combustion engine is provided with an engine body containing a cylinder, a working fluid within the cylinder, and a displacer piston reciprocable between two ends of the cylinder. A heat exchanger matrix permeable to said working fluid is provided at one end of the cylinder. The movement of the displacer establishes a flow path through a limited portion of the matrix such that the working fluid exchanges heat with different portions of the matrix at different displacer positions as the fluid is displaced between the two ends of the cylinder.

REFERENCES:
patent: 3688512 (1972-09-01), Prast et al.
patent: 3717004 (1973-02-01), O'Neil
patent: 4488402 (1984-12-01), Sieck

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