Me ka hoʻomau mau ʻana o ke kaʻina hana hana ʻenehana o Kina, ua hoʻomaka ka piʻi ʻana o ka pollution index ea, a ua wikiwiki e hoʻomaikaʻi i ka haumia kaiapuni. I ka pane ʻana i kēia pūʻulu pilikia, ua hoʻopuka koke ke aupuni Kina i nā kulekele kūpono no ka hoʻokuʻu ʻana i ka mīkini diesel. Ma waena o lākou, ʻoi aku ka kaulana o nā mīkini kaʻa maʻamau maʻamau me National III a me Euro III i loko o ka mākeke hoʻonohonoho diesel.
ʻO ka mīkini kaʻa kaʻa kaʻa kiʻekiʻe e pili ana i kahi ʻōnaehana hoʻolako wahie e hoʻokaʻawale loa i ka hanauna o ke kaomi injection a me ke kaʻina hana injection i loko o kahi ʻōnaehana pani pani ʻia i haku ʻia me kahi pahu wahie kiʻekiʻe, kaomi sensor a me ka mana uila uila (ECU). E nānā ka ECU i ke kūlana manawa maoli o ka mīkini i ka manawa maoli a hoʻoponopono i ka hoʻokele wahie e like me ke kūlana o ka pedal accelerator. Ka nui o ka manawa a me ka wahie injection. I kēia mau lā, hoʻohana nui ʻia nā ʻenekini diesel i ke kolu o ka hanauna o ka "time pressure control" fuel injection system, ʻo ia hoʻi, kiʻekiʻe-pressure common rail.
ʻO nā mea maikaʻi o nā mīkini diesel kaʻa maʻamau kiʻekiʻe he haʻahaʻa ka hoʻohana ʻana i ka wahie, hilinaʻi kiʻekiʻe, ola lōʻihi, a me ka torque kiʻekiʻe. ʻO nā ʻenekini Diesel me nā kaʻaahi maʻamau e hoʻokuʻu i nā kinoea ʻino ma mua o nā ʻenekini me ka ʻole o ke kaʻa maʻamau (ʻoi aku ka liʻiliʻi o CO), no laila ua maikaʻi lākou i ke kaiapuni ke hoʻohālikelike ʻia me nā ʻenekini ʻaila.
ʻO nā pōʻino o nā ʻenekini diesel kaʻa maʻamau kaomi kiʻekiʻe e pili ana i nā kumukūʻai kiʻekiʻe o ka hana a me ka mālama ʻana (nā kumu kūʻai), ka walaʻau nui, a me ka paʻakikī i ka hoʻomaka. Inā lōʻihi ka holo ʻana o ka ʻenekini, ʻoi aku ka kiʻekiʻe o ka wela a me ke kaomi ʻana, a ʻoi aku ka nui o ka soot a me ka coke i loko o nā cylinders, a ua maʻalahi ka ʻaila ʻenekini i ka oxidation e hana i nā gums. No laila, pono ka ʻaila diesel maikaʻi i ka detergency kiʻekiʻe.
Ka manawa hoʻouna: Nov-16-2021
