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期刊论文

Valve timing effect on the cooling performance of a 4K pulse tube cooler

邱利民L. M. Qiu ab G. Thummes a*

Cryogenics 42(2002)327-333,-0001,():

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摘要/描述

Generally, a compressor together with a rotary valve system generates the pressure oscillation in GM-type cryocoolers. The timing of the rotary valve, which is one of the key operating parameters for cryocoolers, determines the relationship between intake andexhaust processes. A systematic investigation of valve timing effects on cooling performance of a two-stage 4K pulse tube cooler (PTC) is reported. The experiments show that the optimization of valve timing can considerably improve the cooling performance for both stages. For the same PTC, a performance comparison for operation on different compressors with various input powers ranging from 0.5 to 6.0kW is also presented.

关键词: Pulse tube ( E) Liquidhelium ( B) Valve timing

版权说明:以下全部内容由邱利民上传于   2005年07月25日 17时35分53秒,版权归本人所有。

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