ʻO ka hoʻoheheʻe ʻia ʻana o ka pahu pahu pahu 0445120182 Bosch no Dongfengdfl 4.8 Cummins Sprayer Qsb4.5 Tier 4 Hope

ʻOi aku ka mana o ka 4-cylinder QSB4.5 no ka Tier 4 Final ma mua o ka wā ma mua, e hāʻawi ana i ka 173 hp (129 kW), me ka torque kiʻekiʻe o 520 lb-ft (705 N•m), he 12 pakeneka hoʻonui. ma mua o ka ʻenekini Tier 4 Interim mua.ʻO ka Tier 4 Final QSB4.5 kaʻana like me Cummins VGT Turbocharger, kahi ʻōnaehana wahie HPCR a me kahi ECM me ka mīkini Cummins QSB6.7.ʻAʻole ia he mea kupanaha no ka hoʻohālikelike ʻana o ka mana mana o ka QSB4.5 i ka hana me nā ʻenekini 6-cylinder ma lalo o 174 hp (130 kW), mai kahi pūʻolo liʻiliʻi a māmā.

Hoʻohui ʻia ʻo SCR me ka maʻalahi o kā mākou Diesel Oxidation Catalyst (DOC) ma ke ʻano he pūʻulu hoʻonohonoho maʻalahi.Hoʻohana ʻia ma ka Tier 4 Interim installations, ua ʻike ʻia ka DOC e hoʻopau pono i ka Particulate Matter (PM) me ka hoʻohana ʻana i ka hoʻoheheʻe passive maʻalahi.ʻOi aku ka liʻiliʻi ma mua o nā ʻano hana ʻē aʻe ma hope o ka hoʻomaʻamaʻa ʻana i mea kūpono i kēia catalyst no nā lako i kaohi ʻia.Hoʻohui pū, hana ka DOC a me Cummins SCR ma ke ʻano he ʻōnaehana hoʻohui piha, ultra-maʻemaʻe ma hope o ka mālama ʻana.ʻO ka ʻeke paʻa loa e hōʻoia i ka loaʻa ʻana o ka ʻōnaehana ma hope o ka mālama ʻana i ka lōʻihi e like me ka mīkini QSB4.5.ʻO kēia ka noi mua o kā mākou ʻenehana VGT Turbocharger lanakila ma kahi ʻenekini 4-cylinder.

ʻOi aku ka liʻiliʻi o ka ʻenehana nozzle sliding Cummins ma mua o nā hoʻolālā turbine ʻē aʻe, e lawe mai ana i ka lōʻihi o ka wā ma mua o ka hāʻawi ʻana i ka hoʻoponopono pololei ʻana o ka ea i hāʻawi ʻia i ka mīkini, hiki ke hoʻoikaika wikiwiki i ka rpm engine haʻahaʻa me ka mālama ʻana i kahi kiʻekiʻe o ka hoʻonui ʻana i ka rpm kiʻekiʻe.Hāʻawi ka QSB4.5 i ka maʻalahi o ka turbocharger hoʻokahi, ʻokoʻa me nā ʻenekini 4-cylinder ʻē aʻe e koi ana i ʻelua turbocharger e hoʻokō i ka mana like, torque a me ke kiʻekiʻe.Hāʻawi nā koho waena a kiʻekiʻe i ka hoʻolālā hoʻolālā, no ka maʻalahi o ka hoʻohui ʻana i ka mīkini.

Ua hoʻonohonoho pono ʻia ka ʻōnaehana SCR ma ka QSB4.5 no kēia ʻenekini e CES, me ka hopena catalytic e hiki mai ana ma nā mahana hana haʻahaʻa.Hoʻemi ʻia nā pae dosing DEF me ka hoʻonui ʻia ʻana o ka hui ʻana i loko o ke kahe kahe.He mea hoʻomaʻemaʻe ea ʻo Cummins Direct Flow e kōkua i ka maʻalahi o ka hoʻonohonoho ʻana me ka hoʻohaʻahaʻa nui ʻana i kahi koi a me ka hiki ke kānana kiʻekiʻe.