【摘要】 给出的狭缝调相式气动分置式斯特林制冷机,具有阻尼调节方便、造价低、制作与装配简单等优点。该机使用调节件与气动腔体之间的缝隙替代气动杆上的干摩擦来调节排出器的运动阻尼,进而调节排出器与活塞之间的运动相位差。主要给出了狭缝调相器的理论模型,并针对不同间隙进行了性能模拟与试验验证。试验结果与性能模拟结果符合很好,证明了所建立理论模型的可行性。更多还原

【Abstract】 The concept of pneumatically-driven split-Stirling-cycle cryocooler with clearance-phase-adjustor is proposed.It has the advantages of easy damping adjusting,low cost,simplifying manufacturing and assembling.The gap between the phase-adjusting part and the cylinder of spring chamber instead of dry friction acted on the pneumatically-driven rod is used to control motion damping of the displacer and adjust the phase difference between the compression piston and displacer.A theoretical model for the clearance-phase-adjustor has been established and dynamic simulation of its operating performance at different gaps is demonstrated in this paper.The simulation results are in good agreement with the experiment ones,therefore the theoretical model is feasible and reliable for the simulation.更多还原