A free piston Stirling machine device

A technology of piston and small piston is applied in the field of free piston Stirling machine, which can solve the problems of difficult processing, severe system vibration and high process cost, and achieve the effect of reducing processing difficulty and eliminating system vibration.

Active Publication Date: 2017-03-08
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems that the existing Stirling machine is difficult to process in the actual assembly process, the process cost is high, and the system vibrates violently, which is not conducive to practical use, the present invention proposes a free-piston Stirling machine device

Method used

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  • A free piston Stirling machine device
  • A free piston Stirling machine device
  • A free piston Stirling machine device

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Embodiment Construction

[0034] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0035] Figure 4 A schematic structural diagram of a free-piston Stirling machine device provided in this embodiment is shown, including an ejector 104, a small piston 106, a housing 100, an elastic support structure 108, and a room temperature heat exchanger 101;

[0036] The small piston 106 is arranged in the cylinder of the displacer 104 along the central axis of the displacer 104, and there is a gap between the cylinder of the displacer 104;

[0037] The ejector 104 is disposed in the housing 100;

[0038] The room temperature heat exchanger 101 is arranged between the casing 100 and the ejector 104, is in contact with the casing 100, and has a gap with the ejector 104...

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Abstract

The invention discloses a free piston Stirling engine device which comprises a discharger, a small piston, a shell, an elastic supporting device and a room temperature heat exchanger. The small piston is arranged in an air cylinder of the discharger in the direction of the center axis of the discharger, and a clearance exits between the small piston and the air cylinder of the discharger. The discharger is arranged in the shell. The room temperature heat exchanger is arranged between the shell and the discharger and is in contact connection with the shell, and a clearance exits between the room temperature heat exchanger and the discharger. The elastic supporting structure is arranged at the bottom end of the room temperature heat exchanger and used for supporting the discharger. By means of the discharger structure adopting the free piston, the machining difficulty of the Stirling engine device can be lowered, and system vibration can be reduced and even eliminated.

Description

technical field [0001] The invention relates to the field of heat engines, in particular to a free-piston Stirling machine device. Background technique [0002] The free-piston Stirling machine is a regenerative heat engine with the advantages of long life, high efficiency, and compact structure, and has very good application prospects, mainly including Stirling engines, Stirling refrigerators, and Stirling heat pumps The three applications, the Stirling engine and the Stirling refrigerator have been widely used, but the Stirling heat pump is still in the initial research stage. [0003] Free-piston Stirling machines include two typical structures: figure 1 The structure of Infinia (American dish-type Stirling photothermal power generation technology company) and such as figure 2 The structure of Sunpower (internationally renowned Stirling technology enterprise) is shown. Such as figure 1 The ejector 4 of the shown Infinia structure needs to keep a gap seal between the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G1/043F02G1/053F25B9/14
CPCF02G1/0435F02G1/053F25B9/14
Inventor 胡剑英张丽敏陈燕燕罗二仓吴张华戴巍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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