Two-tank working gas storage system for heat engine

Details Two-tank working gas storage system for heat engine Two-tank working gas storage system for heat engine

1986-03-07

1987-04-07

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 106

Patent

active

046550364

ABSTRACT:
A two-tank working gas supply and pump-down system is coupled to a hot gas engine, such as a Stirling engine. The system has a power control valve for admitting the working gas to the engine when increased power is needed, and for releasing the working gas from the engine when engine power is to be decreased. A compressor pumps the working gas that is released from the engine. Two storage vessels or tanks are provided, one for storing the working gas at a modest pressure (i.e., half maximum pressure), and another for storing the working gas at a higher pressure (i.e., about full engine pressure). Solenoid valves are associated with the gas line to each of the storage vessels, and are selectively actuated to couple the vessels one at a time to the compressor during pumpdown to fill the high-pressure vessel with working gas at high pressure and then to fill the low-pressure vessel with the gas at low pressure. When more power is needed, the solenoid valves first supply the low-pressure gas from the low-pressure vessel to the engine and then supply the high-pressure gas from the high-pressure vessel. The solenoid valves each act as a check-valve when unactuated, and as an open valve when actuated.

REFERENCES:
patent: 3820330 (1974-06-01), Hakansson
patent: 4601171 (1986-07-01), Stotts
patent: 4612769 (1986-09-01), Berntell

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