Kulowa mochuluka.
Kwa injini zojambulira mafuta a carburetor kapena throttle body, kuchuluka kwake kumatanthawuza chitoliro cholowera kuchokera kuseri kwa carburetor kapena throttle body kupita patsogolo pa doko lolowera mutu wa silinda. Ntchito yake ndikugawira kusakaniza kwa mpweya ndi mafuta ku doko lililonse lolowera pa silinda ndi carburetor kapena throttle body.
Kwa injini yojambulira mafuta padoko kapena injini ya dizilo, kuchuluka kwake kumangogawira mpweya woyera ku ma silinda. Kuchulukitsa kwamafuta kumayenera kugawa mpweya, kusakaniza kwamafuta kapena mpweya wabwino mofanana momwe mungathere pa silinda iliyonse, kotero kuti kutalika kwa njira ya gasi muzolowera kukhale kofanana momwe kungathekere. Kuti muchepetse kukana kwa gasi ndikuwongolera mphamvu yolowera, khoma lamkati lazolowera liyenera kukhala losalala.
Tisanalankhule za kuchuluka kwa madyedwe, tiyeni tiganizire za momwe mpweya umalowera mu injini. M'mawu oyamba a injini, tatchulapo ntchito ya pisitoni mu silinda, pamene injini ili mu sitiroko, pisitoni imatsika pansi kuti ipange vacuum mu silinda (ndiko kuti, kuthamanga kumakhala kochepa), kotero kuti kusiyana kwapakati ndi mpweya wakunja kungathe kupangidwa, kuti mpweya ulowe mu silinda. Mwachitsanzo, aliyense amayenera kubayidwa jekeseni ndikuwona momwe namwino adayamwira mankhwala mumtsuko wa singano! Ngati ndowa ya singano ndi injini, ndiye pamene pisitoni mu ndowa ya singano itulutsidwa, madziwo adzayamwa mu ndowa ya singano, ndipo ndi momwe injini imakokera mpweya mu silinda.
Chifukwa cha kutentha kwapang'onopang'ono kwa mapeto a kudya, zipangizo zophatikizika zakhala zodziwika bwino zopangira zinthu, zomwe zimakhala zopepuka komanso zosalala mkati, zimatha kuchepetsa kukana ndikuwonjezera mphamvu ya kudya.
Chifukwa cha dzinali
The manifold intake lili pakati pa valavu throttle ndi valavu intake injini, chifukwa chake amatchedwa "zobwezedwa" ndi kuti pambuyo mpweya kulowa valavu throttle, pambuyo zobwezedwa dongosolo chotchinga mpweya "kugawanika" njira otaya mpweya, lolingana ndi chiwerengero cha masilindala injini, monga injini zinayi yamphamvu ali ndi njira zinayi, ndipo injini ali olemekezeka asanu, ndi zisanu ndi njira ya aircylinder. masilinda. Kwa injini yowonongeka kwachilengedwe, chifukwa manifold amalowedwe amapezeka pambuyo pa valavu yamagetsi, pamene injini yamagetsi imatsegulidwa, silinda sichikhoza kuyamwa mpweya wokwanira, zomwe zidzachititsa kuti pakhale mpweya wambiri; Pamene throttle injini yatsegulidwa, vacuum muzolowera zambiri imakhala yaying'ono. Chifukwa chake, injini yoperekera jakisoni imayika choyezera chopondera pamitundu yambiri kuti ipereke ECU kuti idziwe kuchuluka kwa injini ndikupereka jekeseni yoyenera yamafuta.
Zogwiritsa ntchito zosiyanasiyana
Vacuum yochulukirapo sikuti imagwiritsidwa ntchito popereka ma sign opanikizika kuti mudziwe kuchuluka kwa injini, pali ntchito zambiri! Ngati mabuleki ayeneranso kugwiritsa ntchito vacuum ya injini kuti athandizire, motero injini ikayamba, chopondapo chizikhala chopepuka kwambiri, chifukwa cha thandizo la vacuum. Palinso njira zina zowongolera liwiro zomwe zimagwiritsa ntchito vacuum yochulukirapo. Machubu a vacuum awa akatsitsidwa kapena kusinthidwa molakwika, zingayambitse kusokonezeka kwa injini ndikusokoneza ma brake, kotero owerenga akulangizidwa kuti asasinthe molakwika machubu a vacuum kuti asunge chitetezo choyendetsa.
Mapangidwe anzeru
Kupanga kochulukira kumakhalanso chidziwitso chochuluka, kuti injini iliyonse yoyaka moto ya silinda imakhala yofanana, kutalika kwa silinda ndi kupindika ziyenera kukhala zofanana momwe zingathere. Popeza injiniyo imayendetsedwa ndi zikwapu zinayi, silinda iliyonse ya injini idzaponyedwa mumtundu wa pulse, ndipo monga lamulo, nthawi yayitali ndi yoyenera kugwira ntchito yotsika ya RPM, pamene manifold amfupi ndi oyenera ntchito yapamwamba ya RPM. Chifukwa chake, mitundu ina idzagwiritsa ntchito manifples otengera kutalika kosiyanasiyana, kapena ma manifples opitilira kutalika kosiyanasiyana, kuti injiniyo izitha kuchita bwino m'madomeni onse othamanga.
kupambana
Ubwino waukulu wa mapulasitiki opangira pulasitiki ndi mtengo wake wotsika komanso kulemera kwake. Kuphatikiza apo, popeza matenthedwe a PA ndi otsika kuposa aluminiyamu, bubu lamafuta ndi kutentha kwa mpweya komwe kukubwera ndizotsika. Sizingangowonjezera ntchito yoyambira yotentha, kuwonjezera mphamvu ndi torque ya injini, komanso kupewa kutaya kutentha mu chubu kumlingo wina pamene kuzizira kumayambira, kumathandizira kuwonjezeka kwa kutentha kwa mpweya, komanso khoma lokhala ndi pulasitiki ndi losalala, lomwe lingachepetse kukana kwa mpweya, motero kuwongolera magwiridwe antchito a injini.
Pankhani ya mtengo, mtengo wamtengo wapatali wa mapulasitiki opangira pulasitiki kwenikweni ndi ofanana ndi a aluminiyamu omwe amamwa mochuluka, ndipo pulasitiki yowonjezera imapangidwa kamodzi, ndi chiwongoladzanja chachikulu; Kutulutsa kwa aluminiyumu kopanda kanthu kopanda kanthu ndikotsika, mtengo wamakina ndiokwera kwambiri, kotero mtengo wopangira ma pulasitiki ochulukirapo ndi 20% -35% kutsika kuposa kuchuluka kwa aluminium.
Zofunika zakuthupi
1) High kutentha kukana: pulasitiki kudya zobwezedwa chikugwirizana mwachindunji injini yamphamvu mutu, ndi injini yamphamvu mutu kutentha akhoza kufika 130 ~ 150 ℃. Chifukwa chake, zinthu zambiri zamapulasitiki zimafunikira kupirira kutentha kwa 180 ° C.
2) Mphamvu yayikulu: pulasitiki yokhazikika imayikidwa pa injini, kuti ipirire kugwedezeka kwa injini yamagalimoto, kugwedezeka kwamphamvu ndi sensa inertia, kuthamanga kwamphamvu, etc., komanso kuonetsetsa kuti injiniyo siphulika ndi kuthamanga kwamphamvu kwapang'onopang'ono pamene kutenthedwa kwachilendo kumachitika.
3) Kukhazikika kwapakatikati: Zofunikira pakulolera kwapakatikati pa kulumikizana pakati pa kuchuluka kwamafuta ndi injini ndizovuta kwambiri, komanso kuyika kwa masensa ndi ma actuators pamitundu yambiri kuyeneranso kukhala kolondola kwambiri.
4) Kukhazikika kwa Chemical: Kuchuluka kwa pulasitiki kumalumikizana mwachindunji ndi petulo ndi antifreeze coolant pogwira ntchito, petulo ndi chosungunulira champhamvu, ndipo glycol muzoziziritsa ikhudzanso magwiridwe antchito apulasitiki, chifukwa chake, kukhazikika kwamankhwala azinthu zambiri zamapulasitiki ndizokwera kwambiri ndipo ziyenera kuyesedwa mosamalitsa.
5) Kukhazikika kwa kutentha kwa kutentha; Injini yamagalimoto ikugwira ntchito potentha kwambiri, kutentha kwa ntchito kumasintha mu 30 ~ 130 ° C, ndipo zinthu zapulasitiki ziyenera kutsimikizira kudalirika kwanthawi yayitali kwazinthu zambiri.
Chonde tiyimbireni ngati mukufuna such mankhwala.
Zhuo Meng Shanghai Auto Co., Ltd. yadzipereka kugulitsa zida zamagalimoto za MG&MAUXS zolandiridwa kuti mugule.
