Makina otenthetsera mafuta a galimoto
Choyamba, tiyeni tiwone komwe kutentha kwa makina otenthetsera mafuta a galimoto kumachokera.
Mphamvu ya kutentha kwa injini ya galimoto ndi yochepa, pafupifupi 30%-40% yokha ya mphamvu yopangidwa ndi kuyaka imasanduka mphamvu ya makina ya galimoto, ndipo yotsalayo imachotsedwa ndi choziziritsira ndi mpweya wotulutsa utsi. Mphamvu ya kutentha yomwe imachotsedwa ndi choziziritsira imakhala pafupifupi 25-30% ya kutentha komwe kumayaka.
Dongosolo lotenthetsera mafuta la galimoto yachikhalidwe ndi lotsogolera choziziritsira mu dongosolo loziziritsira injini kupita ku chosinthira kutentha cha mpweya/madzi mu kabati. Mphepo ikadutsa mu radiator, madzi otentha kwambiri amatha kusamutsa kutentha mosavuta kupita mumlengalenga, motero amawomba. Mphepo yomwe imalowa mu kabati ndi mpweya wofunda.
Makina atsopano otenthetsera mphamvu
Mukaganizira za magalimoto amagetsi, zingakhale zosavuta kwa aliyense kuganiza kuti makina otenthetsera omwe amagwiritsa ntchito waya wotsutsa mwachindunji kutentha mpweya sikokwanira. M'malingaliro, ndizotheka kwathunthu, koma palibe makina otenthetsera waya wotsutsa magalimoto amagetsi. Chifukwa chake ndichakuti waya wotsutsa amadya magetsi ambiri.
Pakadali pano, magulu a zatsopanomakina otenthetsera mphamvuPali magulu awiri makamaka, limodzi ndi kutentha kwa PTC, lina ndi ukadaulo wa pampu yotenthetsera, ndipo kutentha kwa PTC kumagawidwa m'magulu awiri.PTC ya mpweya ndi PTC yoziziritsira.
Mfundo yotenthetsera ya makina otenthetsera a PTC thermistor ndi yosavuta kumva. Ndi yofanana ndi makina otenthetsera a waya wokana, omwe amadalira mphamvu yamagetsi kuti apange kutentha kudzera mu mphamvu yamagetsi. Kusiyana kokha ndi zinthu zomwe zimakhudzidwa ndi mphamvu yamagetsi. Waya wokana ndi waya wamba wachitsulo wokana kwambiri, ndipo PTC yomwe imagwiritsidwa ntchito m'magalimoto amagetsi oyera ndi semiconductor thermistor. PTC ndi chidule cha Positive Temperature Coefficient. Mtengo wa mphamvu yamagetsi udzawonjezekanso. Khalidweli limatsimikizira kuti pansi pa mphamvu yamagetsi yokhazikika, chotenthetsera cha PTC chimatentha mwachangu kutentha kukakhala kochepa, ndipo kutentha kukakwera, mphamvu yamagetsi imakhala yayikulu, mphamvu yamagetsi imakhala yochepa, ndipo PTC imagwiritsa ntchito mphamvu zochepa. Kusunga kutentha kokhazikika kudzapulumutsa magetsi poyerekeza ndi kutentha kwa waya wokana.
Ndi ubwino uwu wa PTC womwe wagwiritsidwa ntchito kwambiri ndi magalimoto amagetsi (makamaka mitundu yotsika mtengo).
Kutentha kwa PTC kumagawidwa m'magulu awiri:Chotenthetsera choziziritsira cha PTC ndi chotenthetsera mpweya.
Chotenthetsera madzi cha PTCnthawi zambiri imaphatikizidwa ndi madzi ozizira a injini. Magalimoto amagetsi akamayenda ndi injini ikuyenda, injiniyo imatenthanso. Mwanjira imeneyi, makina otenthetsera amatha kugwiritsa ntchito gawo lina la injiniyo kutentha poyendetsa, ndipo imathanso kusunga magetsi. Chithunzi chili pansipa ndiChotenthetsera choziziritsira chamagetsi champhamvu cha EV.
Pambuyo pakutentha kwa madzi PTCikatentha choziziritsira, choziziritsiracho chidzadutsa pakati pa chotenthetsera chomwe chili mu kabati, kenako chimakhala chofanana ndi makina otenthetsera a galimoto yamafuta, ndipo mpweya womwe uli mu kabati udzazunguliridwa ndi kutenthedwa ndi mphamvu ya wowotchera.
Thekutentha kwa mpweya PTCNdiko kuyika PTC mwachindunji pakati pa chotenthetsera cha kabati, kufalitsa mpweya mgalimoto kudzera mu chopumira ndikutenthetsa mpweya womwe uli mgalimoto kudzera mu chotenthetsera cha PTC. Kapangidwe kake ndi kosavuta, koma ndi kokwera mtengo kuposa PTC yotenthetsera madzi.
Nthawi yotumizira: Ogasiti-03-2023
