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....
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Designs |
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| Online Access: | https://www.mdpi.com/2411-9660/8/1/5 |
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| author | Radovan Petrović Andrzej Banaszek Maja Andjelković Hana R. Qananah Khalefa A. Alnagasa |
| author_facet | Radovan Petrović Andrzej Banaszek Maja Andjelković Hana R. Qananah Khalefa A. Alnagasa |
| author_sort | Radovan Petrović |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-07T22:35:45Z |
| format | Article |
| id | doaj.art-a72da4823784434f8daf883d33b4018e |
| institution | Directory Open Access Journal |
| issn | 2411-9660 |
| language | English |
| last_indexed | 2024-03-07T22:35:45Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Designs |
| spelling | doaj.art-a72da4823784434f8daf883d33b4018e2024-02-23T15:13:36ZengMDPI AGDesigns2411-96602023-12-0181510.3390/designs8010005Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable FlowRadovan Petrović0Andrzej Banaszek1Maja Andjelković2Hana R. Qananah3Khalefa A. Alnagasa4Faculty of Information Technology and Engineering, University “Union-Nikola Tesla”, Jurija Gagarina 149a, 11070 Belgrade, SerbiaMaritime Research and Transport Faculty, West Pomeranian University of Technology, al. Piastow 41, 71-065 Szczecin, PolandFaculty of Information Technology and Engineering, University “Union-Nikola Tesla”, Jurija Gagarina 149a, 11070 Belgrade, SerbiaFaculty of Information Technology and Engineering, University “Union-Nikola Tesla”, Jurija Gagarina 149a, 11070 Belgrade, SerbiaFaculty of Information Technology and Engineering, University “Union-Nikola Tesla”, Jurija Gagarina 149a, 11070 Belgrade, SerbiaConstant 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.https://www.mdpi.com/2411-9660/8/1/5axial piston pumppressurehydraulic systemaircraftexperimental test |
| spellingShingle | Radovan Petrović Andrzej Banaszek Maja Andjelković Hana R. Qananah Khalefa A. Alnagasa Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow Designs axial piston pump pressure hydraulic system aircraft experimental test |
| title | Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow |
| title_full | Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow |
| title_fullStr | Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow |
| title_full_unstemmed | Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow |
| title_short | Experimental Tests of the Piston Axial Pump with Constant Pressure and Variable Flow |
| title_sort | experimental tests of the piston axial pump with constant pressure and variable flow |
| topic | axial piston pump pressure hydraulic system aircraft experimental test |
| url | https://www.mdpi.com/2411-9660/8/1/5 |
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