Mfundo Yogwira Ntchito ya Power Brake Booster

The vacuum booster amagwiritsa ntchito mfundo yoyamwa mpweya pamene injini ikugwira ntchito, yomwe imapanga vacuum kumbali yoyamba ya chilimbikitso. Poyankha kusiyana kwa kuthamanga kwa mpweya wabwino kumbali inayo, kusiyana kwapakati kumagwiritsidwa ntchito kulimbitsa mphamvu ya braking.

Ngati pali kusiyana pang'ono pakati pa mbali ziwiri za diaphragm, chifukwa cha dera lalikulu la diaphragm, kukakamiza kwakukulu kungathe kupangidwa kukankhira diaphragm kumapeto ndi kutsika kochepa. Pochita braking, vacuum booster system imayang'aniranso vacuum yomwe imalowa mu chilimbikitso kuti chiwongolero chisunthike, ndipo amagwiritsa ntchito ndodo yokankhira pa diaphragm kuthandiza munthu kuponda ndikukankhira chopondapo kudzera pa chipangizo chophatikizira.

M'malo osagwira ntchito, kasupe wobwerera wa valavu yowongolera amakankhira ndodo yolowera kumalo otsekera kumanja, ndipo doko la vacuum liri poyera. Kasupe wa valavu yowongolera imapangitsa kapu yowongolera ndi mpando wa valve ya mpweya kukhudzana kwambiri, motero kutseka doko la valavu ya mpweya.

Panthawiyi, chipinda chosungiramo mpweya komanso chipinda chogwiritsira ntchito mpweya wa chilimbikitso chimalankhulidwa ndi njira yogwiritsira ntchito chipinda cha gasi kupyolera mu chipinda cha gasi cha pisitoni cha thupi la pistoni kupyolera muzitsulo zolamulira, ndipo zimasiyanitsidwa ndi mlengalenga. Injini ikayamba, vacuum (kuthamanga koyipa kwa injini) pamagawo osiyanasiyana a injini imakwera mpaka -0.0667mpa (ndiko kuti, kuthamanga kwa mpweya ndi 0.0333mpa, ndi kusiyana kwamphamvu ndi 0.0667mpa). ). Pambuyo pake, vacuum ya booster ndi vacuum ya chipinda chofunsira idakwera mpaka -0.0667mpa, ndipo anali okonzeka kugwira ntchito nthawi iliyonse.

Pochita mabuleki, chopondapo cha brake chimakhala chokhumudwa, ndipo mphamvu yonyamulira imakulitsidwa ndi lever ndikuchitapo kanthu pa ndodo yowongolera. Choyamba, kasupe wobwerera wa kuwongolera valavu kukankhira ndodo ndi wothinikizidwa, ndi valavu kukankhira ndodo ndi mpweya valavu ndime kupita patsogolo. Pamene chowongolera valavu chikankhira ndodo ikupita patsogolo pomwe kapu yowongolera imalumikizana ndi mpando wa vacuum vacuum, doko la vacuum limatsekedwa. Panthawiyi, vacuum ya booster ndi chipinda chogwiritsira ntchito zimasiyanitsidwa.

Panthawi imeneyi, mapeto a valavu ya mpweya amangolumikizana pamwamba pa disk reaction. Pamene chiwongolero cha valve chowongolera chikupitirirabe kupita patsogolo, khomo la valve la mpweya lidzatsegulidwa. Pambuyo kusefedwa kwa mpweya, mpweya wakunja umalowa m'chipinda chogwiritsira ntchito cha booster kudzera pa doko lotseguka la valve ndi njira yopita ku chipinda chogwiritsira ntchito mpweya, ndipo mphamvu ya servo imapangidwa. Chifukwa zinthu zomwe zimapangidwira mbale zimakhala ndi zofunikira zakuthupi zofanana ndi mphamvu ya unit pamtunda wopanikizika, mphamvu ya servo imawonjezeka mokhazikika (chiŵerengero cha mphamvu ya servo) ndi kuwonjezeka kwapang'onopang'ono kwa mphamvu yolowera ya valve yolamulira. Chifukwa cha kuchepa kwa mphamvu ya servo mphamvu, pamene mphamvu yaikulu ya servo ikufika, ndiye kuti, pamene digiri ya vacuum ya chipinda chogwiritsira ntchito ndi zero, mphamvu ya servo idzakhala yosasintha ndipo sidzasinthanso. Panthawiyi, mphamvu yolowera ndi mphamvu yowonjezera yowonjezera idzawonjezeka mofanana; pamene brake yazimitsidwa, ndodo yoyendetsera valve imayenda chammbuyo ndi kuchepa kwa mphamvu yolowera. Pamene malo okwera kwambiri afika, doko la vacuum vacuum litatsegulidwa, chowonjezera chowonjezera ndi chipinda cha mpweya chogwiritsira ntchito chikugwirizanitsidwa, mlingo wa vacuum wa chipinda chogwiritsira ntchito udzachepa, mphamvu ya servo idzachepa, ndipo thupi la pistoni lidzabwerera kumbuyo. . Mwanjira imeneyi, pamene mphamvu yolowera ikuchepa pang'onopang'ono, mphamvu ya servo idzachepa mu gawo lokhazikika (chiŵerengero cha mphamvu ya servo) mpaka kumasulidwa kwathunthu.


Nthawi yotumiza:09-22-2022
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