A stirling cryocooler system and a control method thereof

By using an internal combustion engine to drive a Stirling refrigerator, combined with a power transmission mechanism and controller, the problems of harmonic oscillator displacement sensitivity and energy conversion loss are solved, achieving a highly efficient and low-cost Stirling refrigeration effect, which is suitable for coalbed methane and shale gas liquefaction in areas lacking electricity.

CN117722788BActive Publication Date: 2026-07-24浙江紫明低温科技有限公司
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Patent Information

Application Number
CN202410060192.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-16
Publication Date
2026-07-24
Estimated Expiration
2044-01-16

AI Technical Summary

Technical Problem

The resonator displacement sensitivity of traditional heat-driven Stirling refrigerators leads to unstable operation, and the motor drive increases energy dissipation losses during energy conversion, reducing energy utilization efficiency.

Method used

An internal combustion engine drives a Stirling refrigerator. The internal combustion engine and the Stirling refrigerator are connected by a power transmission mechanism, and a controller is used for power control to achieve stable speed and temperature regulation, thus avoiding energy loss during the electric motor drive process.

Benefits of technology

It improves the system's energy utilization efficiency, reduces equipment costs and maintenance difficulty, and is suitable for applications in areas lacking electricity, especially in the liquefaction of coalbed methane and shale gas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a Stirling cryogenic refrigerator system and a control method thereof, which adopts an internal combustion engine to drive a Stirling refrigerator, and comprises the Stirling refrigerator, the internal combustion engine and a controller, wherein the internal combustion engine is connected with the Stirling refrigerator through a power transmission mechanism; the power transmission mechanism comprises a torque and speed sensor, a shaft coupling, a clutch and a cross transmission shaft which are connected in sequence; the torque and speed sensor is connected with the Stirling refrigerator; and the cross transmission shaft is connected with the internal combustion engine; and the controller is electrically connected with the Stirling refrigerator, the internal combustion engine, the torque and speed sensor and the clutch respectively. By using the application, the energy utilization efficiency of the system can be improved, the internal combustion engine is used as a power source, and the application is simple and reliable, mature in technology and convenient to maintain.
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Citation Information

Patent Citations

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