Numerical research on characteristics of fuel heating and subcooling in the nozzle hole of common rail injector

Zhao, Jianhui; Guo, Nan; Lu, Xiangdong; Chen, Jingyan; Chen, Shuo; Zhang, Heng

doi:10.1016/j.ijheatmasstransfer.2022.123508

Cited by 3 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CFQ under the conditions of 6.5, 7.5, 8.5, 9.5 and 10.5mm closing lift are 997.0, 1096.2, 1194.2, 1291.6 and 1387.9mm 3 , respectively, with a variation range of 7.0-10.0% with variation step. The CFQ is closest to the technical requirement when the closing lift is 8.5mm especially.…”

Section: Effect Of Closing Liftmentioning

confidence: 94%

“…Six FLVs are installed in the fuel outlet interfaces which arranged in equal spacing along the axial direction of the common rail pipe. Overload cycle injection quantity 710mm 3 Close flow quantity of the FLV 1200mm 3 2. The valve core can reset to its initial position if it hasn't closed the FLV's outlet by the end of injection, then the FLV will not affect the injection in that case.…”

Section: Structure Design Of Flvmentioning

confidence: 99%

“…High pressure common rail fuel system has been considered to be one of the key technologies to meet the current marine diesel engine emission regulations for it can flexibly adjust injection time, pressure, frequency and duration, improve spray quality and optimize combustion process significantly [1][2][3] . At present, CRS has been widely used in modern marine diesel engine to improve combustion efficiency, reduce harmful gas emissions and optimize overall performance [4,5] .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Matching analysis on flow limiting valve of marine diesel engine common rail system

Sun,

Tian,

Mao

2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The flow limiting valve (FLV) designed for the high pressure common rail fuel system (CRS) was designed, the simulation model of the FLV and electronic controlled injector is established and the injector’s model was verified by experiment data. Through simulation, the maximum cycle injection quantity (CIQ) and close flow quantity (CFQ) of the CRS matched with the FLV are verified, and the influence of key FLV’s parameters on the matching performance was analysed. The maximum CIQ is 722mm3 and the CFQ is 1194.2mm3, which can satisfy the technical requirements of the CRS under overload conditions. The closing lift and orifice diameter of the FLV has a significant impact on the CFQ, which should be carefully designed according to the technical requirements, and the dimensional tolerance and processing accuracy should be guaranteed in the production and assembly process to ensure the consistency of the CFQ.

show abstract

Section: Effect Of Closing Liftmentioning

confidence: 94%

Section: Structure Design Of Flvmentioning

confidence: 99%