Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor
Abstract
:1. Introduction
2. Distribution Principle with an Overlapped Distributor
3. Analysis of the Pressure and Flow within the Piston Chambers
3.1. Flow Area of the Overlapped Distributor
3.2. Volumetric Losses
3.3. Pressure Analysis in a Pump Chamber
4. Simulation
5. Experimental Research
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Parameter | Value | Parameter | Value |
---|---|---|---|
Bulk modulus of the oil K (MPa) | 1400 | Flow rate coefficient Cd | 0.62 |
Oil dynamic viscosity μ (Pa·s) | 3.91 × 10−2 | Cylinder block outlet opening length lp (mm) | 8 |
Oil density ρ (kg/m3) | 850 | Cylinder block inlet opening length ls (mm) | 18 |
Out-cylinder block pressure pe (MPa) | 0 | Piston slot length l1 (mm) | 46 |
2D piston diameter d (mm) | 24.4 | Sealing length on one side of the slot l2 (mm) | 5 |
Piston rod diameter ds (mm) | 16 | Sealing length of the sealing ring l3 (mm) | 28 |
Piston working stroke H (mm) | 6 | Gap width δ (mm) | 0.01 |
Description | Valve | Description | Valve |
---|---|---|---|
Pressure range | 10 MPa | Bandwidth (−3 dB) | 200 KHz |
Combined non-linearity, hysteresis, and repeatability | ±0.1% FS | Operating temperature range | −50 °C to + 120 °C |
Thermal sensitivity shift | ±0.1%/10 °C | Thermal zero shift | ±0.1% FS/100 °C |
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Xing, T.; Yan, X.; Huang, Y.; Gao, C.; Ruan, J. Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor. Energies 2023, 16, 4303. https://doi.org/10.3390/en16114303
Xing T, Yan X, Huang Y, Gao C, Ruan J. Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor. Energies. 2023; 16(11):4303. https://doi.org/10.3390/en16114303
Chicago/Turabian StyleXing, Tong, Xinyu Yan, Ying Huang, Cun Gao, and Jian Ruan. 2023. "Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor" Energies 16, no. 11: 4303. https://doi.org/10.3390/en16114303