pompu ya petulo
Ntchito ya pampu yamafuta ndikutulutsa mafuta mu thanki yamafuta ndikuyikankhira mu chipinda choyandama cha carburetor kudzera mupaipi ndi fyuluta yamafuta. Chifukwa cha pampu yamafuta, thanki yamafuta imatha kuyikidwa kumbuyo kwa galimoto kutali ndi injini komanso pansi pa injini.
Mapampu a petulo amatha kugawidwa m'magulu awiri: mtundu wa diaphragm woyendetsedwa ndi makina ndi mtundu wamagetsi woyendetsedwa ndi njira zosiyanasiyana zoyendetsera.
Chiyambi
Ntchito ya pampu yamafuta ndikutulutsa mafuta mu thanki yamafuta ndikuyikankhira mu chipinda choyandama cha carburetor kudzera mupaipi ndi fyuluta yamafuta. Chifukwa cha pampu yamafuta, thanki yamafuta imatha kuyikidwa kumbuyo kwa galimoto kutali ndi injini komanso pansi pa injini.
Kugawa
Mapampu a petulo amatha kugawidwa m'magulu awiri: mtundu wa diaphragm woyendetsedwa ndi makina ndi mtundu wamagetsi woyendetsedwa ndi njira zosiyanasiyana zoyendetsera.
Pampu ya petulo ya diaphragm
Pampu ya mafuta ya diaphragm imayimira pampu ya mafuta yamakina. Imagwiritsidwa ntchito mu injini ya carburetor ndipo nthawi zambiri imayendetsedwa ndi gudumu losazolowereka pa camshaft. Mikhalidwe yake yogwirira ntchito ndi iyi:
① Pamene camshaft yoyamwa mafuta ikuzungulira, pamene gudumu losaoneka bwino likukankhira mkono wa rocker ndikukoka pansi ndodo yokokera ya pampu, diaphragm ya pampu imatsika kuti ipange kuyamwa, ndipo mafuta amatuluka mu thanki yamafuta ndikulowa mu pampu yamafuta kudzera mu chitoliro chamafuta, chipinda chosefera mafuta.
②Kupompa mafuta Pamene gudumu losaoneka bwino likuzungulira mbali ina yake ndipo silikupompanso mkono wozungulira, kasupe wa nembanemba ya pampu umatambasuka, kukankhira nembanemba ya pampu mmwamba, ndikukakamiza mafuta kuchokera ku valavu yotulutsira mafuta kupita ku chipinda choyandama cha carburetor.
Mapampu a petulo a diaphragm amadziwika ndi kapangidwe kosavuta, koma chifukwa amakhudzidwa ndi kutentha kwa injini, chisamaliro chapadera chiyenera kuperekedwa kuti zitsimikizire kuti kupompa kukuyenda bwino kutentha kwambiri komanso kulimba kwa diaphragm ya rabara motsutsana ndi kutentha ndi mafuta.
Kawirikawiri, mafuta ambiri omwe amaperekedwa pa pampu ya mafuta ndi ochulukirapo nthawi 2.5 mpaka 3.5 kuposa mafuta ambiri omwe amaperekedwa pa injini ya mafuta. Pamene mafuta a pampu ndi ochulukirapo kuposa mafuta omwe amaperekedwa ndipo valavu ya singano m'chipinda choyandama cha carburetor yatsekedwa, kuthamanga kwa mafuta mupaipi yamafuta ya pampu ya mafuta kumawonjezeka, zomwe zimayankha pa pampu yamafuta, kuchepetsa kukwapula kwa diaphragm kapena kuyimitsa ntchito.
pompu yamagetsi ya petulo
Pampu yamagetsi yamafuta siidalira camshaft kuti iyendetse, koma imadalira mphamvu yamagetsi kuti ikayamwe mobwerezabwereza nembanemba ya pampu. Mtundu uwu wa pampu yamagetsi ukhoza kusankha momasuka malo oikira, ndipo ungalepheretse vuto la kutseka mpweya.
Mitundu yayikulu yoyika mapampu amagetsi amafuta a injini zolowetsa mafuta imayikidwa mu payipi yoperekera mafuta kapena mu thanki yamafuta. Yoyamba ili ndi mawonekedwe akuluakulu, sifunikira thanki yamafuta yopangidwira mwapadera, ndipo ndi yosavuta kuyiyika ndikuyichotsa. Komabe, gawo loyamwa mafuta la pampu yamafuta ndi lalitali, ndi losavuta kupanga kukana mpweya, ndipo phokoso logwira ntchito nalonso ndi lalikulu. Kuphatikiza apo, pampu yamafuta imafunika kuti isatuluke. Mtundu uwu sugwiritsidwa ntchito kawirikawiri m'magalimoto atsopano amakono. Yomalizayi ili ndi mapaipi osavuta amafuta, phokoso lochepa, komanso zosowa zochepa pakutaya mafuta ambiri, komwe ndi njira yayikulu yomwe ikugwiritsidwa ntchito pano.
Pakugwira ntchito, kuchuluka kwa mafuta omwe amatuluka pa pampu ya petulo sikuyenera kungopereka mphamvu yogwiritsira ntchito injini yokha, komanso kuonetsetsa kuti mafuta akubwerera bwino kuti pakhale bata komanso kuziziritsa bwino mafuta.
