Analysis and optimisation of impact wear of diesel engine needle valve assembly

Liu, Gang; Huang, Guanghua; Yuan, Haijun; Xia, Songlin; Tan, Wei

doi:10.1504/ijhm.2022.122462

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…Investigation of the microstructure and mechanical properties is very important in manufacturing technologies and material sciences, and some studies have been previously done in this field. By studying these results, one can conduct a better analysis on the state of the base metal [ [33] , [34] , [35] ]. The samples were etched with 10% oxalic acid solution under 15 s with 12 DC power supply.…”

Section: Resultsmentioning

confidence: 99%

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

Soleimani,

Akbari,

Karimipour

et al. 2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

Soleimani,

Akbari,

Karimipour

et al. 2024

Heliyon

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“…Many literatures reported relevant research on the optimization design of control valves [2,3] , some are based on bionic principles. Benzon [4] designed a spear valve structure injector, which improved the performance of the turbine and improved its overall hydraulic efficiency.…”

Section: Introductionmentioning

confidence: 99%

Inhibition Mechanism of Bionic Drainage Hole on Cavitation Flow in the Regulating Valve

He,

Zhang,

Liu

et al. 2024

Preprint

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A valve seat structure with some bionic drainage of the regulating valve was designed which is inspired by the cuttlefish. The development and collapse of cavitation flow in the valve with this bionic valve seat was investigated with numerical simulation, experimental measurement and theoretical analysis. The influence of bionic drainage valve seat on the internal cavitation development and the distribution of three-dimensional cavitation morphology was also fully discussed. The results show that the bionic drainage hole structure destroyed the distribution law of the cavitation ring in the flow channel, and accelerated the collapse of the cavitation flow which mainly concentrates on the inner surface of the valve seat. Furthermore, the bionic drainage hole structure causes the vortex structure to break into smaller vortices during the cavitation collapse stage under the shear effect, so the cavitation bubble is dissipated in the form of smaller vortex breaking finally. The results provide a significant reference for optimum structural design of the regulating valve in the coal liquefaction project.

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“…The hydraulic pump is the core power component of the hydraulic system in the fields of national defense, aerospace, and heavy equipment, and the hydrostatic bearing slipper pair is the most critical component and weak link [ 1 , 2 , 3 ]. A slipper pair is a pair of planes composed of slipper and swash plate, and its motion mechanism and force are very complex.…”

Section: Introductionmentioning

confidence: 99%

Impact Analysis of Worn Surface Morphology on Adaptive Friction Characteristics of the Slipper Pair in Hydraulic Pump

Liu

et al. 2023

Micromachines

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The hydrostatic bearing slipper pair of the hydraulic pump has a unique adaptive friction characteristic, which has a better friction reduction and anti-wear ability than the general sliding friction pair, and also has a certain recovery effect on the performance degradation caused by the early wear of the slipper. This paper attempts to reveal the friction adaptive mechanism. Based on the fractal theory, two fractal parameters of fractal dimension and scale coefficient are used to characterize the surface morphology of the slipper mathematically, and the adaptive friction mechanism model is established by combining the friction coefficient equation. The effects of different fractal parameters on the friction coefficient and other performance parameters of slipper pairs are obtained by means of the numerical analysis method. The wear test was carried out by replacing specimens at different intervals to observe the worn surface morphology and the degradation process of the slipper to verify the correctness of the theoretical results. The results show that the friction performance and load-bearing capabilities of the slipper can be recovered to a certain extent within a short period when early wear occurs, and its surface performance shows the variation characteristics of deterioration-repair-re-deterioration-re-repair.

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Analysis and optimisation of impact wear of diesel engine needle valve assembly

Cited by 8 publications

References 6 publications

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

Investigation the effect of dissimilar laser welding parameters on temperature field, mechanical properties and fusion zone microstructure of inconel 600 and duplex 2205 stainless steel via response surface methodology

Inhibition Mechanism of Bionic Drainage Hole on Cavitation Flow in the Regulating Valve

Impact Analysis of Worn Surface Morphology on Adaptive Friction Characteristics of the Slipper Pair in Hydraulic Pump

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