Rotary Stirling engine device and working method

Abstract

A rotor type Stirling engine device and working method. The device includes symmetrically arranged cold and hot end cylinders and Unicom pipelines. The cold and hot end cylinders respectively include cold and hot end cylinder shells and cold and hot end cylinder rotors. The hot end cylinder is equipped with a hot and cold end cylinder rotor correspondingly. The upper and lower end covers of the cylinder are respectively provided with upper and lower raised sliding grooves on the upper and lower end covers of the cylinder in the middle of the lower end cover of the cylinder. Distributed at right angles, the upper and lower end surfaces of the hot and cold end cylinder rotors are respectively provided with protrusions on the upper side of the hot and cold end rotors and protrusions on the lower side of the hot and cold end rotors, and the hypocycloidal movement of the hot and cold end cylinder rotors passes through The cylindrical protrusions on the two end surfaces are respectively corresponding to the upper and lower side protrusion sliding grooves to realize. Through the cycloidal motion of the rotor, the vibration is effectively reduced, the operation is more stable, and the layout is flexible, the structure is simple, the construction cost is low, compact, high reliability, small air resistance, small dead volume, and has great advancement.

Description

technical field [0001] The invention relates to a Stirling engine device and a working method, in particular to a rotor type Stirling engine device and a working method. Background technique [0002] The Stirling engine is a closed cycle reciprocating piston engine in which the gas is periodically compressed and expanded at different temperatures by external heat supply. Compared with the characteristics of internal combustion engine fuel combustion in the cylinder, the Stirling engine belongs to the external combustion engine, and often uses hydrogen or helium as the working medium, and a certain volume of working medium is filled in the two closed cylinders. One end of the cylinder is a hot chamber and the other end is a cold chamber. The working fluid is compressed in the low-temperature cold chamber, then flows into the high-temperature hot chamber to be heated rapidly, expands to do work, and circulates back and forth, outputting power through the connecting rod mechan...

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Problems solved by technology

[0003] However, most of the existing Stirling engines adopt a reciprocating structure, with the traditional piston cylinder as the main component, the remaining clearance volume is large, and the sealing area of ​​the dynamic sealing parts in the cylinder is large, and the cylinder and each sealing part are subjected to high temperature and high pressure. Therefore, There are often problems with the lubrication between the cylinder and the sealing parts, and the problems of friction and wear are also prominent, resulting in a decrease in the stability and reliability of the engine and frequent maintenance

In addition, the piston of the reciprocating machine will generate vibration noise when it reciprocates, and mechanical connecting rods are needed to convert the linear motion of the piston into circular motion, which makes the system bulky and heavy, which affects the market application and promotion of external combustion engines

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