Hydraulic diaphragm sealing system of hot air engine

Abstract

The invention discloses a hydraulic diaphragm sealing system of a hot air engine. The hydraulic diaphragm sealing system of the hot air engine comprises a heating cavity, a cooling cavity and a heat regenerator connected between the heating cavity and the cooling cavity. Outlets of the heating cavity and the cooling cavity are each connected with a hydraulic cavity. Two flexible diaphragms are arranged between the heating cavity and the corresponding hydraulic cavity and between the cooling cavity and the corresponding hydraulic cavity respectively. The edges of the two flexible diaphragms are fixed to the corresponding hydraulic cavities respectively in a static sealing manner. The two hydraulic cavities are filled with hydraulic oil. The power output ends of the two hydraulic cavities are each provided with a cylinder body. Plungers are installed in the two cylinder bodies respectively. The power output ends of the two plungers drive the same rotary shaft to act. Two crank-link mechanisms have the phase difference adapting to the step sequence of the heating cavity and the cooling cavity. By the adoption of the structure, the requirement for no leakage in the working process is met, use efficiency is guaranteed, the service life of the system is prolonged, meanwhile flywheels can be driven by crank-links to operate to output power, and it is guaranteed that power is output reliably.

Description

technical field [0001] The invention relates to an improvement of a Stirling engine, in particular to a hydraulic diaphragm sealing system of a hot gas engine. Background technique [0002] The hot air engine seals the high-pressure working gas in a closed system and pushes the power piston to do work through thermal expansion and cold contraction. The power piston drives the output shaft to rotate through the connecting rod mechanism. Leaking gas outside, when the amount of gas leaking is relatively large, it will cause a decline in efficiency and reduce the working time. Therefore, the sealing problem of the power piston and the gas distribution piston to the external environment has always restricted the development of the heat engine. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hydraulic diaphragm sealing system for a hot gas engine with good sealing effect, which can effectively reduce gas leakage and ...

AI Technical Summary

Problems solved by technology

[0002] The hot air engine seals the high-pressure working gas in a closed system and pushes the power piston to do work through thermal expansion and cold contraction. The power piston drives the output shaft to rotate through the connecting rod mechanism. External leakage of gas, when the amount of leaked gas is relatively large, causes a drop in efficiency and reduces the working time. Therefore, the sealing problem of the power piston and the gas distribution piston to the external environment has always restricted the development of the heat engine.

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