ʻO ka mea hoʻoheheʻe wahie Diesel hou 2645A747 ka mea hoʻoheheʻe maʻamau 320-0680 kūpono me Cat C6.6 C4.4 Engine 323D L Excavator

Cavitation Loko High-Pressure Optical Transparent Fuel Injector Nozzles(MĀhele 2)

Ua hoʻohana ʻia nā nozzle injector hiki ke loaʻa (OA) ma kekahi mau haʻawina i hala no nā kahe o loko o nā geometries nozzle injector i loaʻa i loko o nā ʻenekini hoʻopiʻi-hoʻā. ʻO ka nui o kēia mau haʻawina i hala aku nei i hana ʻia ma nā puʻe injection i haʻahaʻa haʻahaʻa loa ma mua o nā mea o ka injector ʻoihana pili, ma muli o ka paʻakikī o ka hoʻolālā ʻana i kahi injector OA e hiki ke kū i nā kaomi hoʻokiʻekiʻe kiʻekiʻe. No ka uku ʻana, ua hoʻohana kekahi i nā geometries i hoʻohālikelike ʻia i ka helu Reynolds.

E hōʻuluʻulu ʻia ma ʻaneʻi nā haʻawina i hoʻāʻo e hōʻea i nā kaomi hoʻopiʻi maoli, no ka mea, ʻo ia ka mea pili loa i ka hoʻolālā i hōʻike ʻia ma kēia pepa, a ʻo ka hope loa ka pololei loa i ka hana hou ʻana i ke kahe o ka hoihoi.

ʻO Arcoumanis et al. ua nānā i ka hopena o ka scaling geometries i ka hoʻohālikelike ʻana i nā helu Reynolds a me Cavitation i ka nui maoli a hoʻonui i ka geometry [2]. Ua ʻike lākou he ʻokoʻa nā hale cavitation i nā geometries ʻelua ma nā helu cavitation like. Ua hōʻike ʻia nā unahi geometry ʻelua i ka cavitation geometric ma ka ʻaoʻao o lalo o ka ʻaoʻao puka o luna (me ke kuhikuhi ʻana o ka injector i lalo), a me ka cavitation string aia ma ka ʻaoʻao o ka puka puka.

ʻO ka ʻokoʻa nui i ʻike ʻia e nā mea kākau, ʻo ia ka ʻokoʻa o ka manawa noho o ka bubble i ke kahe ma muli o nā lōʻihi orifice. Ua hana ʻia ka injector nui i ke aniani acrylic, ʻoiai ʻo ka injector unahi maoli i hana ʻia me ke koʻokoʻo quartz i hoʻopili ʻia i kahi kino injector common-rail Bosch a hoʻopuni ʻia e kahi hale kiʻi kākoʻo acrylic. ʻOi aku ka nui o ka ʻāpana acrylic ma mua o ka nozzle kila kumu o ka injector. ʻO Reid et al. ua hoʻohana i ka sapphire e hana i kahi mana maʻalahi o ka geometry i loaʻa i nā injectors valve-covered-orifice (VCO)[3]. Ua loaʻa iā lākou nā kaomi injection o 2000 bar me ka hoʻolālā. Me he mea lā ua kūkulu ʻia ka puka ma ka waiho ʻana i nā papa sapphire ma ka ʻaoʻao axial me ke ʻano o nā lua i hoʻokumu ʻia ka geometry hope. He ala akamai kēia e maʻalahi i ka hana ʻana i nā ʻāpana.