Free piston Stirling engine

A technology of Stirling engine and piston, which is applied in the direction of engine components, machines/engines, hot gas variable displacement engine devices, etc. It can solve the problems of complex energy transmission, easy to occur large vibration, large heat loss, etc., and achieve the heating process Simple, compact structure, the effect of reducing vibration

Pending Publication Date: 2020-12-01
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a free-piston Stirling engine, which solves the problems of complex energy transmission and large heat loss in the ene

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Such as Figure 1-4 As shown, the embodiment of the present invention provides a free-piston Stirling engine, comprising two oppositely arranged Stirling mechanisms, and the two Stirling mechanisms are respectively a first Stirling mechanism 11 and a second Stirling mechanism The mechanism 12 is provided with the heat source 10 betwee...

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Abstract

The invention relates to the technical field of engines, in particular to a free piston Stirling engine. The free piston Stirling engine comprises two Stirling mechanisms which are oppositely arranged, a heat source is arranged between the two Stirling mechanisms; each Stirling mechanism comprises a shell and a heat pipe type heater; a communicating pipeline is connected between the two Stirling mechanisms; the communicating pipeline communicates with two expansion cavities or two compression cavities or two back cavities, the heat pipe type heater comprises a heater body and a plurality of heat pipes, the condensation ends of the heat pipes are correspondingly arranged in heat pipe embedding holes, and the evaporation ends of the heat pipes penetrate through the shell to be connected withthe heat source. The free piston Stirling engine is compact in structure, vibration of the engine is reduced, each Stirling mechanism adopts a heat pipe type heater to achieve heat transmission, heatloss in energy transmission is effectively reduced, and the working efficiency of the engine is improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a free-piston Stirling engine. Background technique [0002] The free-piston Stirling engine is a closed-cycle piston engine with external heating, which has the advantages of simple structure, high efficiency and long life. As a key component of a free-piston Stirling engine, the heater has an important influence on engine performance. There are various specific structural forms of traditional heaters, among which finned heaters and shell-and-tube heaters are widely used. [0003] For finned heaters, the working medium inside the heater is usually gas, and the heat transfer working medium outside the heater is usually heat transfer fluid. The heat transfer fluid absorbs heat in the heat source and then transfers the heat to the gas to be heated in the heat exchanger. Because the finned heater is processed by wire cutting, not only the processing cost is high, but also the hei...

Claims

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Application Information

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IPC IPC(8): F02G1/044F02G1/055
CPCF02G1/0435F02G1/044F02G1/055F02G2255/00
Inventor 胡剑英罗二仓刘贤贤陈燕燕张丽敏
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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