I-Diesel Injector Fuel Injector 0445120141 Bosch ye-Gazon Engine D 245.7 E3 Mmz Serie DD 245.30 E3

I-Cavitation Ngaphakathi Kwemibhobho Yomjovo Wamafutha Okucindezela Okuphezulu Okubonakalayo(INGXENYE 7)

4 Iziphetho (qhubeka)

Le ndlela icabangele izindlela zokwehluleka ezivame kakhulu zezinto eziphukayo, futhi yasebenzisa i-Finite Element Analysis ukuze ixazulule imithwalo yokusebenza kubhobho ngokuningiliziwe. Idizayini yasebenzisa izinsimbi zesafire ezinamajiyometri alula ukuze iminyanise ucezu lombhobho we-acrylic ukuze kuncishiswe ukucindezelwa okuqinile ezindaweni ezingaphakathi zengcezu lapho kusetshenziswe khona ukucindezela okuvela kuphethiloli. Ngomthamo wokucindezela onikeziwe, lo mklamo ubiza kancane kunowakhiwe ngokukhethekile ngesafire futhi uhlala isikhathi eside kunowodwa owakhiwe nge-acrylic kuphela.

I-cavitation ku-orifices ibonise ukuncika ku-geometry, ikakhulukazi ku-engeli yokuthambekela ye-axis emaphakathi ye-orifice. Ngenkathi i-cavitation itholwe nhlangothi zombili ze-orifice nge-angle yokuthambekela enkulu, kwakungengenxa ye-string cavitation, okuyinto i-cavitation kule ndawo evame ukubhekwa ngayo ezifundweni ezedlule.

Umsebenzi wesikhathi esizayo uzosusa izimbobo zokusula ezimpahleni zesafire, futhi esikhundleni salokho sebenzisa izingcezu zesafire ezilula ezifakwe ngaphakathi kwezinsimbi zensimbi engagqwali. Lolu shintsho kulindeleke ukuthi lunciphise ukugxiliswa kwengcindezi ezicucu zesafire futhi luvumele amandla amakhulu okugoqa kunalokho obekungenzeka ngedizayini yangaphambilini.

Izingcezu ezintsha zizohlolwa ukuze kuqinisekiswe ukusebenza kwazo bese ukuhlolwa kuzokwenziwa phezu kohlu lwezingcindezi zangemuva (ama-cavitation umbers) ekamelweni elicindezelweyo. Lokhu kuzokhiqiza uhla lokugeleza kwe-cavitating ukuze kuqhutshekwe nesifundo.

5 Ukubongwa

Ababhali bangathanda ukubonga i-EU ngokusekela lo msebenzi ngaphansi kwephrojekthi ye-HERCULES-C, kanye nokubonga i-Swedish Energy Agency ngokusekela kwabo.

6 Izikhombo

[1] Soteriou, C., Andrews, R., noSmith, M., 1999, "Izifundo Eziqhubekayo ze-Cavitation kanye ne-Atomization ku-Diesel Injection," (724).

[2] Arcoumanis, C., Flora, H., and Gavaises, M., 2000, “Cavitation in Real-Size Multi-Hole Diesel Injector Nozzles,” (724).

[3] Reid, B. a., Hargrave, GK, Garner, CP, noWigley, G., 2010, "Uphenyo lwe-string cavitation ku-geometry ye-real-scale fuel injector flow at high pressure," Phys. Uketshezi, 22(3), p. 031703.

[4] Badock, C., Wirth, R., Fath, A., and Leipertz, A., 1999, "Uphenyo lwe-cavitation ngosayizi wangempela womjovo wedizili," Int. J. Ukugeleza Koketshezi Lokushisa, 20(5), amakhasi 538–544.

[5] Blessing, M., König, G., Krüger, C., Michels, U., kanye noSchwarz, V., 2003, “Ukuhlaziywa Kwephenomena Yokugeleza Ne-Cavitation Emibhobho Yomjovo Kadizili kanye Nemiphumela Yami Ekufutheni Nengxube Ukwakheka.”

[6] Butcher, a. J., Aleiferis, PG, kanye noRichardson, D., 2013, "Ukuthuthukiswa kwenozzle ye-optical injector yosayizi wangempela ukuze kufundwe i-cavitation, ukwakheka kwesifutho kanye nokubilisa i-flash ezimeni ezihambisana nezinjini zokuthungela i-spark-ignition eziqondile," Int. . J. Engine Res., 14(6), amakhasi 557-577.

[7] Mitroglou, N., McLorn, M., Gavaises, M., Soteriou, C., kanye noWinterbourne, M., 2014, “Izakhiwo ze-cavitation ezisheshayo nezihlanganisiwe ku-Diesel micro-flow orifices,” Fuel, 116 , amakhasi 736-742.