Mechanism of a dual-cold-head shared inertance tube pulse tube cryocooler

Zhang, Shurui, Xu, Sheng and Zhu, Shaowei 2026. Mechanism of a dual-cold-head shared inertance tube pulse tube cryocooler. Cryogenics 161 , 104431. 10.1016/j.cryogenics.2026.104431

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Abstract

The development of more compact and efficient Stirling type pulse tube cryocoolers (SPTCs) continues to drive sustained interest in the investigation of phase shifters. Shared inertance tube SPTCs are of interest because they allow redistribution of phase-shifting capacity between cold heads and simplify the structure. However, the dominant parameters affecting the overall phase-shifting capacity and its redistribution between the two cold heads remain unclear. A theoretical framework combining the Helmholtz resonator model and the transfer matrix method is established to investigate the working mechanism of the shared inertance tube pulse tube cryocoolers. The simulation results show that the inertance tube dimensions, operating frequency, and pulse tube volume can effectively regulate the overall phase-shifting capacity of the cryocooler, while the phase-shifting buffer volume and step ratio enable redistribution of the phase-shifting capacity between the two cold heads.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	Elsevier
ISSN:	0011-2275
Date of Acceptance:	7 July 2026
Last Modified:	15 Jul 2026 11:30
URI:	https://orca.cardiff.ac.uk/id/eprint/188234

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