Reducing the starting torque of double-acting Stirling engines

Details Reducing the starting torque of double-acting Stirling engines Reducing the starting torque of double-acting Stirling engines

1976-07-09

1977-05-31

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...

60656, 60517, F02G 106

Patent

active

040261140

ABSTRACT:
A closed working fluid system for a regenerative type Stirling engine is disclosed. The system has pistons therein arranged to be of the double-acting type. A compensating system is employed to eliminate the force differential that works upon the upper and lower surfaces of each double-acting piston during cold engine start and restarting conditions.
The compensating system employs a parallel path to the normal intercommunication between hot and cold chambers; a variable area valve is disposed in the parallel path. Communication through the variable area valve is controlled by a shuttle valve and one-way flow is assured by at least one check valve.

REFERENCES:
patent: 2664699 (1954-01-01), Kohler
patent: 3813882 (1974-06-01), Hubschmann

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