Coolant Penetrating Cold-End Pressure Vessel

摘要

An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by heat from an external thermal source. The improvement includes a heat exchanger for cooling the working fluid, where the heat exchanger is disposed within the cold-end pressure vessel. The heater head may be directly coupled to the cold-end pressure vessel by welding or other methods. A coolant tube is used to convey coolant through the heat exchanger.

主权项

1. A heat exchanger for cooling a working fluid in an external combustion engine, the heat exchanger comprising:
a continuous length of metal tubing for conveying a coolant through the heat exchanger to outside a pressure vessel, wherein a section of the metal tubing contained within a cooler for directing a flow of the working fluid across the metal tubing.