| 摘要 |
This invention provides a heat engine based on well-developed structure of internal combustion engines. The heat engine comprises at least a piston and cylinder assembly and at least two heating chambers associated with said piston and cylinder assembly to provide a significantly increased time period for heat transfer from a heat source to the gaseous working of the engine without increasing the number of strokes per power stroke in a cycle. Each said heating chamber has therewithin a heat exchanger unit that facilitates heat transfer from the heating source to the gaseous working fluid substantially under a constant volume, a port leading to said cylinder space, and a heating-chamber valve, said valve opening or closing the port to establish or block communication between said heating chamber and cylinder space. For a heat engine utilizing intake and discharge strokes respectively for intake and discharge purposes, each said heating chamber in a cycle has an associated intake stroke, a compression stroke, a power stroke, a discharge stroke, and between said compression and power strokes a time period of 4(n-1) strokes available for heat transfer from the heat source to an amount of working fluid substantially enclosed within said heating chamber while the piston serves the working fluid associated with another heating chamber, wherein n is the number of the heating chambers per piston and cylinder assembly. For a heat engine utilizing a scavenging process for intake and discharge purposes, each said heating chamber in a cycle has an associated scavenging process to facilitate the discharge and intake of the working fluid, a compression stroke, a power stroke, and between said compression and power strokes a time period of 2(n-1) strokes available for heat transfer from the heat source to an amount of working fluid substantially enclosed within said heating chamber while the piston serves the working fluid associated with another heating chamber, wherein n is the number of the heating chambers per piston and cylinder assembly. Additionally, a heat engine based on a rotary internal combustion engine and the techniques using heat pipes to cool a rotary engine are disclosed.
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