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

F - Mech Eng,Light,Heat,Weapons

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F02G 1/04 (2006.01) F02G 1/043 (2006.01) F02G 1/044 (2006.01)

Patent

CA 1054382

REDUCING THE STARTING TORQUE OF DOUBLE-ACTING STIRLING ENGINES ABSTRACT OF THE DISCLOSURE 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.

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