Cold and hot twin-cylinder external rotor engine

Abstract

The invention discloses a cold and hot double-cylinder outer rotor engine. The cold and hot double-cylinder outer engine comprises a fixed eccentric shaft, and the fixed eccentric shaft is fixed on an engine base, and serves as an inner support of the outer rotor engine; the fixed eccentric shaft is provided with a hot cylinder outer rotor mechanism and a cold cylinder outer rotor mechanism through a bearing supporting sleeve, wherein the hot cylinder outer rotor mechanism rotates to work through driving of a thermal expansion effect, and the cold cylinder outer rotor mechanism rotates to work through driving of a cold shrinkage effect; an eccentric angle difference exists between an eccentric cross-section circle of the portion with the hot cylinder outer rotor mechanism being located and an eccentric cross-section circle of the portion with the cold cylinder outer rotor mechanism being located on the fixed eccentric shaft; A middle partition panel is arranged between the hot cylinder outer rotor mechanism and the cold cylinder outer rotor mechanism, and the middle partition panel is used for separating a mold cavity of the hot cylinder outer rotor mechanism from a mold cavity of the cold cylinder outer rotor mechanism so as to avoid short circuit of heat conducting; and a hot-gas channel and a cold-gas channel are arranged on the middle partition panel, wherein the hot-gas channel is used for enabling hot-gas in the mold cavity of the hot cylinder outer rotor mechanism to flow toward the mold cavity of the cold cylinder outer rotor mechanism, and the cold-gas channel is used for enabling cold-gas in the mold cavity of the cold cylinder outer rotor mechanism to flow toward the mold cavity of the hot cylinder outer rotor mechanism.

Description

technical field [0001] The invention relates to the technical field of hot gas engines, in particular to a cold and hot dual-cylinder external rotor engine. Background technique [0002] A piston heat engine, also known as a Stirling engine, is an externally heated closed-cycle engine. It is a unique heat engine that generates power by expanding the gas when it is heated and compressing it when it is cooled. It is an external combustion engine that burns the fuel continuously, the evaporated expanded hydrogen (or helium) is used as the power gas to move the piston, and the expanded gas is cooled in the cold air chamber, and this cycle process is repeated. When the Stirling cycle works in a forward cycle, it can be used as a heat engine cycle to output work; when it works in a reverse cycle, it can be used as a heat pump cycle. [0003] In order to improve the power performance of the hot gas engine, it is necessary to reduce the volume of the connecting pipeline between th...

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Problems solved by technology

[0004] The invention provides a cold and hot twin-cylinder external rotor engine to solve the problem of the existing Stirling engine. In order to improve the power performance of the hot gas engine, it is necessary to reduce the volume of the connecting pipeline between the cold and hot twin cylinders, and to reduce the The circulation resistance improves the heat exchange capacity, which causes the technical problem that the design and manufacture of the Stirling engine is more difficult

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