Axis internal linear motor, power piston, gas distribution piston and electric active refrigeration and Stirling temperature difference generator

By installing the linear stator rod of the linear motor inside the pressure-bearing housing of the Stirling machine and setting a permanent magnet rotor inside the power piston, the problems of complex structure, large size and high cost of external linear motors of the existing Stirling temperature difference engine (refrigerator) power piston are solved, and a simple, compact and low-cost design is achieved.

CN120140053APending Publication Date: 2025-06-13班万春
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Patent Information

Application Number
CN202510156552.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The external linear motor of the power piston of the existing Stirling temperature difference engine (refrigerator) is complex in structure, large in size, high in cost, and requires a large pressure metal shell to avoid magnetic disconnection of the magnetic line.

Method used

The linear stator rod of the linear motor is installed at the inner axis of the Stirling machine's pressure-bearing shell, and a permanent magnet rotor containing an annular sleeve is installed inside the power piston. The linear motor is directly made on the axis of the power piston, and all are reduced on the inner axis of the metal pressure-bearing shell.

Benefits of technology

The Sterling temperature difference engine (refrigerator) design with a simple structure, compact and low cost is realized, avoiding structural complexity and high costs caused by external linear motors.

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Abstract

According to the novel Stirling temperature difference engine (refrigerator), a piston linear motor is used for replacing a mechanical combination of a connecting rod, a crankshaft and a flywheel. However, an external linear motor of an existing power piston (distribution piston) is complex in structure, large in size, large in pressure metal shell and high in cost in order to maintain magnetic lines of force according to the working principle of the motor to avoid magnetic breakage of a closed pressure-bearing metal shell. An existing external linear motor is omitted, a pressure-bearing metal shell is closed without increasing the diameter, the linear motor is directly arranged on the axis of a power piston (a gas distribution piston), and the linear motor is totally shrunk on the internal axis of the metal pressure-bearing shell. The problem that an external linear motor maintains magnetic lines of force of the working principle of the motor in order to avoid magnetic breakage of a closed pressure-bearing metal shell and is complex in structure is solved, the structure is simple and compact, and the cost is low. A new structural mode is provided for low-cost application in the fields of Stirling thermoelectric power generation, active refrigeration of Stirling power utilization and long-time energy storage of electric power.
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Description

Technical Field

[0001] Stirling thermoelectric power generation field, Stirling active electric refrigeration, and long-term electric energy storage field. Background Art

[0002] The Stirling thermoelectric engine (refrigerator) is the fourth type of heat engine. At present, a new type of Stirling thermoelectric engine (refrigerator) uses a linear piston motor to replace the mechanical connecting rod, crankshaft, and flywheel combination. However, the current external linear motor of the power piston (gas distribution piston) is complex in structure, large in volume, and large in pressure metal shell to avoid the magnetic field breakage of the closed pressure-bearing metal shell and maintain the magnetic field lines of the motor working principle, resulting in high costs. The present invention eliminates the existing external linear motor, does not increase the diameter but closes the pressure-bearing metal shell, and directly makes the linear motor on the axis of the power piston (gas distribution piston), all reduced to the internal axis of the pressure-bearing metal shell, avoiding the complex structure of the external linear motor to avoid the magnetic field breakage of the closed pressure-bearing metal shell and maintain the magnetic field lines of the motor working principle, achieving a simple, compact, and low-cost structure. Summary of the Invention

[0003] The inner axis position of the pressure-bearing shell of the Stirling engine (Feature 1) is made into the column rod of the linear stator of the linear motor (Feature 2), and the inside of the power piston (gas distribution piston) of the Stirling engine (Feature 3) is made into a permanent magnet (Feature 5) rotor (Feature 6) containing an annular sleeve (Feature 4) and the column rod of Feature 1.

Claims

1. The internal axis position of the pressure-bearing shell of the Stirling machine (feature 1) is made into a column rod of the linear stator of the linear motor (feature 2), and various deformations.

2. The interior (feature 3) of the power piston (distributor piston) of the Stirling engine is made into a permanent magnet (feature 5) mover (feature 6) including an annular sleeve (feature 4) and a column rod of feature 1, and various deformations.