Me ka hoʻomohala mau ʻana o ke kaʻina hana ʻoihana o Kina, ua hoʻomaka ka piʻi ʻana o ka helu kuhikuhi haumia ea, a he mea wikiwiki ia e hoʻomaikaʻi i ka haumia o ke kaiapuni. I ka pane ʻana i kēia mau pilikia, ua hoʻolauna koke ke aupuni Kina i nā kulekele pili i nā hoʻokuʻu ʻana o nā mīkini diesel. I waena o lākou, ʻo nā mīkini diesel kaʻaahi maʻamau kiʻekiʻe me nā hoʻokuʻu ʻana o National III a me Euro III ma ka mākeke mīkini hana diesel e lilo nei i mea kaulana i ka mākeke.
ʻO ka mīkini diesel maʻamau 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 loop pani i haku ʻia me kahi pamu wahie kiʻekiʻe, sensor kaomi a me ka ʻāpana mana uila (ECU). ʻAʻole hilinaʻi hou nā mīkini diesel i hoʻokele ʻia e ka uila i ka hohonu throttle o ka mea hoʻokele e kāohi i ka nui o ka injection wahie o ka pamu mechanical, akā hilinaʻi i ka mīkini ECU e hana i ka ʻike o ka mīkini holoʻokoʻa. E nānā ka ECU i ke kūlana manawa maoli o ka mīkini i ka manawa maoli a hoʻoponopono i ka injection wahie e like me ke kūlana o ka pedal accelerator. Manawa a me ka nui o ka injection wahie. I kēia mau lā, hoʻohana nui ʻia nā mīkini diesel i ka ʻōnaehana injection wahie "mana kaomi manawa" o ke kolu o ka hanauna, ʻo ia hoʻi, ke kaʻaahi maʻamau kiʻekiʻe.
ʻO nā pono o nā mīkini diesel common rail kiʻekiʻe-kaomi, ʻo ia ka hoʻohana ʻana i ka wahie haʻahaʻa, ka hilinaʻi kiʻekiʻe, ke ola lōʻihi, a me ka torque kiʻekiʻe. Hoʻopuka nā mīkini diesel me ka common rail i nā kinoea ʻino ʻole ma mua o nā mīkini me ka ʻole o ka common rail (ʻoi aku ka liʻiliʻi o ka CO2), no laila he aloha lākou i ke kaiapuni i hoʻohālikelike ʻia me nā mīkini gasoline.
ʻO nā hemahema o nā mīkini diesel kaʻaahi maʻamau kiʻekiʻe e komo pū ana me nā kumukūʻai hana a me ka mālama ʻana (nā kumukūʻai), ka walaʻau nui, a me ka paʻakikī o ka hoʻomaka ʻana. Inā holo ka mīkini no ka manawa lōʻihi, kiʻekiʻe ka mahana a me ke kaomi o ka mīkini, a ʻoi aku ka nui o ka soot a me ke coke e hana ʻia i loko o nā cylinders, a he maʻalahi hoʻi ka ʻaila mīkini i ka oxidation e hana i nā gums. No laila, pono ka ʻaila mīkini diesel i ka detergent wela kiʻekiʻe maikaʻi.
Ka manawa hoʻouna: Nov-16-2021
