Free-piston Stirling generator

A generator and piston technology, applied in engine components, machines/engines, hot gas variable displacement engine devices, etc., can solve the problems of complex process, difficult design, low reliability, etc., to simplify the system structure and increase the reliability of the system Sex, the effect of avoiding mechanical collision

Active Publication Date: 2015-04-08
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the additional mechanical or electronic control anti-collision measures adopted by the existing free-piston Stirling generators need to introduc

Method used

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  • Free-piston Stirling generator
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  • Free-piston Stirling generator

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the implementation of the present invention. example, not all examples. 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.

[0050] image 3 It is a schematic structural diagram of a free-piston Stirling generator provided by an embodiment of the present invention, image 3 and figure 1 The same components are given the same reference numerals. Such as image 3 As shown, the free-piston Stirling generator provided in this embodiment includes: a cylinder body 2, a linear oscillatin...

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Abstract

The invention provides a free-piston Stirling generator which comprises a cylinder body, a linear oscillation motor, a power piston and a discharger which is arranged in the cylinder body. The power piston comprises a piston body and a tenon part, wherein the piston body is arranged in the cylinder body, and the tenon part is connected with a rotor of the linear oscillation motor. The discharger and the first end of the cylinder body form an expansion cavity, and the discharger and the power piston form a compression cavity. A hot end step is arranged on the inner wall of the expansion cavity, and a discharger protrusion is arranged at one end of the discharger far away from the power piston. A discharger step is arranged at the other end of the discharger close to the power piston, and a power piston protrusion is arranged at one end of the power piston close to the discharger. The free-piston Stirling generator can ensure that a strong gas spring and nonlinear consumption can be generated at the tops of the discharger and the cylinder body and between the discharger and the power piston when the discharger or the power piston exceeds the designed stroke due to accidents, accordingly mechanical collision is effectively avoided, the system structure is simplified and system reliability is improved.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a free-piston Stirling generator. Background technique [0002] The free-piston Stirling generator is made by a free-piston Stirling engine driving a linear motor. The free-piston Stirling engine adopts the positive Stirling cycle, which converts thermal energy into mechanical energy through the heating expansion of the working gas and the cooling compression, and its theoretical efficiency is equal to the Carnot cycle efficiency; the linear motor is rigidly connected with the power piston. The rotor cuts the lines of magnetic force and converts mechanical energy into electrical energy. This kind of engine has the characteristics of external combustion and closed cycle, the internal working gas is helium or hydrogen, and there is no mechanical transmission and oil lubrication device. Increasing the operating frequency of the free-piston Stirling generator to above 100Hz can ...

Claims

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Application Information

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IPC IPC(8): F02G1/043
CPCF02G1/0435F02G1/053F02G2270/55F02G2280/10
Inventor 余国瑶刘斌戴巍罗二仓李海冰
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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