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Electric heating Stirling engine

A Stirling engine and electric heating technology, which is applied to hot gas variable displacement engine devices, machines/engines, mechanical equipment, etc., can solve the problems of operator burns, inability to transfer all heat, loss, etc., and achieve the effect of improving efficiency

Pending Publication Date: 2018-11-02
金虎杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristic of these two ways of heating the working gas is that all the heat generated cannot be transferred to the working gas in the cavity, and part of the heat is lost by dissipating heat to the surrounding space at the heating device.
In particular, the existing Stirling engine model has a fire hazard and a burn hazard to the operator due to the use of an open flame to heat the cylinder block

Method used

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  • Electric heating Stirling engine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Figure 5 It is a diagram showing an Alpha (α) Stirling engine with a disc-shaped electric heating device inside the cavity. Flywheel 8 is fixedly connected with crankshaft 9, and cylinder 20, cylinder 22 and connecting hole 24 communicate and form cavity. Inside the cylinder 20 is arranged an airtight sliding piston 21 , which is hingedly connected to the crankshaft 9 via the connecting rod 10 . A disc-shaped electric heating device 5 is arranged at the inner bottom of the cylinder 20, and the two ends of the resistance wire are drawn out of the cylinder through an electrical insulating material tube 13, and the bottom of the cylinder is airtight. A thermal insulation material 12 is provided at the outer bottom of the cylinder 20 to prevent heat from radiating outward from the bottom of the cylinder 20 . A cooler 7 is provided outside the cylinder 22 . Inside the cylinder 22 is arranged an airtight sliding piston 23 , which is hingedly connected to the crankshaft 9 ...

Embodiment 2

[0029] Image 6 It is a diagram showing an Alpha (α) Stirling engine with an annular electric heating device outside the cavity. Flywheel 8 is fixedly connected with crankshaft 9, and cylinder 20, cylinder 22 and connecting hole 24 communicate and form cavity. Inside the cylinder 20 is arranged an airtight sliding piston 21 , which is hingedly connected to the crankshaft 9 via the connecting rod 10 . An annular electric heating device 6 is arranged on the outer bottom of the cylinder 20 . A thermal insulation material 12 is arranged outside the annular electric heating device 6 to prevent heat from dissipating outward from the bottom of the cylinder 20 . Inside the cylinder 22 is arranged an airtight sliding piston 23 , which is hingedly connected to the crankshaft 9 via the connecting rod 11 . A cooler 7 is provided outside the cylinder 22 . The phase difference of the two cranks on the crankshaft 9 corresponding to the connecting rod 10 and the connecting rod 11 is 90 de...

Embodiment 3

[0031] Figure 7 It is a diagram showing a Beta (β) type Stirling engine with a disc-shaped electric heating device inside the cavity. Flywheel 8 is fixedly connected with crankshaft 9, and cylinder 34 is a cavity, and the piston 30 with the air-tight sliding of slideway hole 32 is set in the upper part of cylinder, and this piston is connected with crankshaft by connecting rod 10 hinges. A gas distribution piston 31 is arranged in the middle and lower part of the cylinder. There is a gas lubrication gap between the gas distribution piston and the cylinder. A shaft rod 33 is arranged on the upper part of the piston. Connecting rod 11 is hingedly connected, and this connecting rod top is hingedly connected with crankshaft 9, is airtight sliding between this shaft rod and this slideway hole. A disc-shaped electric heating device 5 is arranged at the inner bottom of the cylinder, and the two ends of the resistance wire are drawn out of the cylinder through an electric insulating...

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Abstract

The invention discloses an electric heating Stirling engine. An electric heating device 5 is arranged at the inner bottom of a heating cylinder 20. An insulating heat-preservation material 12 is arranged at the outer bottom of the cylinder, and a piston 21 sliding in an airtight mode is arranged in the cylinder. The piston is hinged to a crankshaft 9 through a connecting rod 10. A piston 23 whichslides in an airtight mode and is hinged to the crankshaft 9 through a connecting rod 11 is arranged in an air cylinder 22. A cooler 7 is arranged on the outside of the air cylinder. The electric heating device 5 is electrified and working gas in the cylinder 20 is heated, a fly wheel 8 is started, the piston 21 and the piston 23 slide up and down along axes of the piston 21 and the piston 23 correspondingly, and the whole engine continues running. The electric heating device can also be arranged outside the cylinder, and the insulating heat-preservation material is used for wrapping the electric heating device and the cylinder, and it can be guaranteed that all electric energy can be converted into heat energy of the working gas. The electric heating Stirling engine has the characteristics that all the electric energy is converted into the heat energy of the working gas, the power of the Stirling engine can be obtained by testing the power of mechanical motion of the fly wheel and thelike, and the engine has experimental reference significance to improving of the design.

Description

technical field [0001] The invention relates to an engine, in particular to an electrically heated Stirling engine. Background technique [0002] Stirling engine, also known as heat engine, is a kind of external combustion engine. Power is generated through the expansion of the working gas when it is heated and the contraction when it is cooled, and its theoretical efficiency is equal to the efficiency of the Carnot cycle. According to different structural forms, Stirling engines are divided into Alpha (α) Stirling engines, Beta (β) Stirling engines, Gamma (γ) Stirling engines, and Manson (Manson) Stirling engines. The common feature of the Stirling engine and the thermoacoustic Stirling engine is that there are interconnected cavities, a cylinder is arranged at the end of the cavity, a reciprocating piston is arranged in the cylinder, a heating device and a cooling device are provided, and the fuel is Combustion outside the cavity, heating the heating device, transfer the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/043F02G1/055
CPCF02G1/043F02G1/055
Inventor 金虎杰
Owner 金虎杰
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