External combustion engine and transmission mechanism thereof

Abstract

The invention discloses an external combustion engine and a transmission mechanism thereof. The external combustion engine comprises two groups of hot gas components, a transmission mechanism and a crank shaft, wherein each group of the hot gas components comprises a gas cylinder, a heater, a reheater and a cooler; a power piston replacement piston is arranged in the gas cylinder, and a cold cavity and a hot cavity are formed in the gas cylinder; the transmission mechanism comprises a connecting rod group and a swing rod group; the swing rod group comprises a center swing rod and edge swing rods; piston rods are hinged at two ends of the swing rod group respectively; a plane on which the center swing rod is placed and the planes on which the edge swing rods are placed are parallel to each other and coaxial with each other on a pivot shaft; the connecting rod group is surrounded by four connecting rods which are hinged between the pivot shaft and a crank shaft connecting rod neck; the first connecting rod and the second connecting rod are as long as each other and keep complementary angles from 30 to 60 degrees with the center swing rod and the edge swing rods; the third connecting rod and the fourth connecting rod are as long as each other, and the upper ends of the third connecting rod and the fourth connecting rod are hinged with each other; and a heat source heats the heater so that gas in a gas channel is expanded and contracted due to a reciprocating motion between a cold cavity and a hot cavity, and the crank shaft is driven by the transmission mechanism to do a periodic motion and work. The external combustion engine is easy to start and has low cost.

Description

technical field [0001] The invention relates to an engine, in particular to an external combustion engine and its transmission mechanism. Background technique [0002] The external combustion engine is a closed cycle reciprocating piston heat engine with external combustion. Because it was invented by Stirling in Scotland in 1816, it is also called the Stirling engine, also known as the heat engine. The medium substance (usually high-pressure gas) that transfers energy in the external combustion engine is called working medium, and is filled with the working medium of certain volume in one, two, four or more closed cylinders. One end of the cylinder is a hot chamber and the other end is a cold chamber. The working medium is compressed in the low-temperature cold chamber, and then flows into the high-temperature hot chamber to be heated rapidly and expand to do work. The heat brought by the continuous combustion of the fuel in the combustion chamber outside the cylinder or ...

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Problems solved by technology

[0011] In view of the problems existing in the prior art, the purpose of the present invention is to provide a low-cost, easy-to-start external combustion engine to solve the defects of high cost, low cost and easy start-up of the external-combustion engine in the prior art

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