恒压变流量活塞轴流泵的实验测试

Designs Pub Date : 2023-12-30 DOI:10.3390/designs8010005
R. Petrović, A. Banaszek, Maja Andjelković, Hana R. Qananah, K. Alnagasa
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引用次数: 0

摘要

恒压变流量往复式轴向泵 (CPAP) 用于各种应用中,当流量变化时,输出压力保持恒定。当液压系统处于额定压力或更低压力时,斜盘具有最大倾斜度,泵输出最大流量。斜盘在两个弹簧的作用下进入该位置。然而,当压力升至额定压力值以上时,液压压力传感器 (HPT) 的活塞会将压力下的液体分配至液压缸 (HC),从而导致斜盘倾斜角度减小,流量减少。本文选择 CPAP 作为飞机液压系统的一个组件进行实验测试。实验测试涵盖了泵的结构和工作参数,并对其性能、效率和可靠性进行了分析。在特尔斯滕尼克 "PPT-Namenska "液压和气动实验室的液压系统上对 CPAP 的结构和工作参数进行了实验测试,模拟了飞机液压系统的实际情况。该系统用于采集数据和记录泵的特性,这些数据是在实验测试过程中获得的。CPAP 结构参数的测量和测试结果以表格形式显示,静态特性和动态行为的实验测试以图表形式显示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow
Constant pressure variable flow reciprocating axial pumps (CPAP) are used in various applications, where a constant output pressure is maintained when the flow rate changes. When the hydraulic system is at rated pressure or less, the swash plate has maximum tilt, and the pump delivers maximum flow. The swash plate comes into this position thanks to the action of a reactive piston in which there are two springs. However, when the pressure rises above the nominal pressure value, the piston of the hydraulic pressure transducer (HPT) distributes the fluid under pressure to the hydraulic cylinder (HC), which causes a decrease in the tilt angle of the swash plate and a decrease in flow. The CPAP was selected as a component of the hydraulic system of the aircraft for the experimental tests in this paper. The experimental tests covered the structural and working parameters of the pump and analyzed their performance, efficiency and reliability. Experimental tests of structural and operating parameters of the CPAP were carried out in the Laboratory for Hydraulics and Pneumatics “PPT-Namenska” Trstenik on the hydraulic system, which simulated the real conditions prevailing in the hydraulic system of the aircraft. A system was used for data acquisition and recording of pump characteristics, which were obtained during experimental testing. The results of the measurement and testing of the structural parameters of the CPAP are shown in tabular form, and the experimental tests of static characteristics and dynamic behavior are shown diagrammatically.
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