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Gas distribution piston type Stirling engine

A Stirling engine and gas distribution piston technology, which is applied to hot gas variable displacement engine devices, machines/engines, mechanical equipment, etc., to achieve the effects of reducing heat loss, increasing life, and reducing useless volume

Inactive Publication Date: 2008-10-08
白坤生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These challenges include considerations of efficiency, lifetime, and cost

Method used

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  • Gas distribution piston type Stirling engine
  • Gas distribution piston type Stirling engine
  • Gas distribution piston type Stirling engine

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0043] exist figure 1 In the illustrated embodiment:

[0044] Gas distribution piston Stirling engine, which includes a heating tube 1, a hot chamber cylinder 9, a gas distribution piston 5, a regenerator 6, a cold chamber cylinder 23 and 19, and a cooler 12, wherein:

[0045] The heating tube 1 is composed of a tube 2 and a sleeve 3, and a plurality of identical heating tubes 1 form a heater tube group; one end of the tube 2 and the sleeve 3 is airtightly connected, and the other end of the sleeve 3 is vertically airtightly connected at a temperature smaller than the heat On the top 4 outside the hot chamber cylinder 9 corresponding to the cylinder bore section of the chamber cylinder 9 and communicated with the inside of the cylinder bore 9, the other end of the pipe 2 is vertically airtightly connected to the area corresponding to the cylinder bore section of the hot chamber cylinder 9. On the top 4 outside the hot chamber cylinder 9, and communicate with the inside of the...

specific Embodiment approach 2

[0052] exist Figure 9 In the illustrated embodiment:

[0053] An inner tube 27 concentric with the sleeve 3 is arranged in the sleeve 3, and one end of the inner tube 27 is airtightly connected to the inner joint surface of the sleeve 3 and the tube 2, and the other end of the inner tube 27 is connected to the top of the hot chamber cylinder 9 4 flush with the bottom surface. The wall thickness of the inner tube 27 is 0.2-1 mm, the inner diameter is approximately equal to the inner diameter of the tube 2, and the outer diameter is about 0.2 mm smaller than the inner diameter of the draft tube 7. The guide tube 7 is inserted in the tubular space 30 between the casing 3 and the inner tube 27, and the depth of the tubular space 30 is 1 to 2 mm greater than the stroke of the gas distribution piston 5; when the guide tube 7 reciprocates in the tubular space 30, The air pressure difference between the inner wall 29 and the outer wall 28 of the draft tube 7 is small at the same po...

specific Embodiment approach 3

[0055] exist figure 1 In the illustrated embodiment:

[0056] The regenerator 6 is divided into two or more sub-regenerators 6a, 6b, 6c in the axial direction, and the heat-insulating ring gasket 10 is arranged between the sub-regenerators 6a, 6b, 6c to form a multi-stage series connection regenerator. The multi-stage series regenerator reduces the heat loss of the regenerator 6 in the axial direction, increases the temperature gradient of the regenerator 6 in the axial direction, and thus increases the efficiency of the regenerator 6 . The heat insulating ring pad 10 can also be a sheet-like mesh structure, which can be made of materials with low thermal conductivity, such as ceramics.

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Abstract

The invention discloses an air distribution-piston stirling engine. A heat regenerator 6 is arranged in an air distribution piston cylinder body 5a and moves with an air distribution piston 5; a tube stack of a cooling tube 17 divides a cold cavity cylinder into an upper cold cavity cylinder 23 and a lower cold cavity cylinder 19; an air distribution piston rod 18 runs through a guide tube 12a of the air distribution piston rod on a cooler 12 and a guide hole 21a of the air distribution piston rod on a power piston 21 and slides in the guide tube 12a of the air distribution piston rod and the guide hole 21a thereof on the power piston 21. The improved mechanical structure of the invention reduces the volume, weight and manufacturing cost of the air distribution-piston stirling engine and enhances the efficiency and lengthens the service life of the air distribution-piston stirling engine. The air distribution-piston stirling engine of the invention can use solid, liquid and gaseous fuels and renewable biomass fuels and heat resources such as solar energy, and is characterized by wide source range of fuels and heat resources, high heating efficiency and environmental friendliness, which will be widely applied through future social production practice.

Description

technical field [0001] The invention relates to a gas distribution piston type Stirling engine, which belongs to the technology of an external combustion type closed cycle piston engine. Background technique [0002] The Stirling engine has many excellent performances and characteristics. In Qian Guozhu's "Heat Engine" (National Defense Industry Press, October, 1982, the first edition was printed for the first time) and Qian Guozhu, Zhou Zengxin and Yan Shanqing's "Heat Engine" There are detailed descriptions in the second book "Principle and Design of Heater" (National Defense Industry Press, the first edition of the first edition in November, 1987), and this article is introduced as a reference. The basic principle of the gas distribution piston Stirling engine is the mechanical structure of the Stirling thermodynamic cycle. Because of its mechanical structure, there are still some engineering technical difficulties, so the gas distribution piston Stirling engine has not b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/043F02G1/053F02G1/057F02G1/055
Inventor 白坤生
Owner 白坤生
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