Opened circulating Stirling engine

A Stirling engine and open cycle technology, applied in open gas positive displacement engine factories, etc., can solve problems such as sealing problems, manufacturing difficulties, and high process requirements, and achieve low cost, low working pressure and temperature, and improved The effect of thermal efficiency

Inactive Publication Date: 2014-11-19
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the traditional Stirling engine, such as sealing problems, manufacturing difficulties, and high process requirements, the present invention provides an open-cycle Stirling engine through improvement.

Method used

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  • Opened circulating Stirling engine
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Embodiment

[0022] see figure 2 and image 3 , The open-cycle Stirling engine includes a hot-end cylinder 2, a hot-end piston 1, a one-way regenerator 6, a cold-end cylinder 10, a cold-end piston 12, a crankshaft transmission system and a flywheel 14. The one-way regenerator 6 is a tubular coaxial counter-flow one-way regenerator. One end of the one-way regenerator 6 is a hot end, and the other end is a cold end. The hot end is provided with a hot end inlet and a hot end outlet respectively. The cold end is respectively provided with a cold end inlet and a cold end outlet. see figure 1 A low-temperature working medium channel is formed between the cold-end inlet and the hot-end outlet of the one-way regenerator 6, and a high-temperature working medium channel is formed between the hot-end inlet and the cold-end outlet.

[0023] see figure 1 , the hot-end cylinder 2 is respectively provided with a hot-end intake valve 3 and a hot-end exhaust valve 5, and the cold-end cylinder 10 is re...

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Abstract

The invention relates to an opened circulating Stirling engine comprising a hot-end cylinder, a hot-end piston, a regenerator, a cold-end cylinder and a cold-end piston. The regenerator is an one-way regenerator, the cold-end inlet and hot-end outlet of the one-way regenerator form a low-temperature medium channel, and the hot-end inlet and cold-end outlet form a high-temperature medium channel; the cold inlet of the cold-end cylinder is communicated with the air, and the cold outlet is communicated with the cold-end inlet of the one-way regenerator; the hot inlet of the hot-end cylinder is communicated with the hot-end outlet of the one-way regenerator, and the hot outlet is communicated with the hot-end inlet of the one-way regenerator; the cold-end outlet of the one-way regenerator is communicated with the air. The circulating medium adopts the one-way flowing manner, the heat exchanging manner is optimized, and the regenerating efficiency is improved; an absolute sealing device for a power piston and an expanding piston is omitted, the friction resistance is reduced greatly, and engine mechanical efficiency is improved; meanwhile, the medium is of the air, the operating pressure and temperature are low, expensive temperature-resistant material is omitted, cost is low, reliability is high, energy is saved, and environment is protected.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a Stirling engine. Background technique [0002] The Stirling engine is an external combustion piston engine. Due to the external combustion cycle, the process of converting chemical energy into heat energy is carried out outside the cylinder that generates power. high. Therefore, the Stirling engine has unique advantages in wide adaptability of energy sources. In addition, the Stirling engine has a lower compression ratio than an internal combustion engine, and has the advantages of low noise and stable operation. In recent years, due to the general rise of energy costs in the world, environmental problems such as energy shortage and global warming have become increasingly serious, the advantages of the Stirling engine have attracted people's attention again. The Stirling engine does not have high requirements on the quality of heat sources, which can realize the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/02
Inventor 左承基赵红玲黄巨锋栾铭湧温森特赵业宏
Owner HEFEI UNIV OF TECH
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