Silinda yayikulu (Master Cylinder), yomwe imadziwikanso kuti mafuta akuluakulu a brake (mpweya), ntchito yake yayikulu ndikukankhira madzi a brake (kapena mpweya) kuti atumizidwe ku silinda iliyonse ya brake kuti akankhire pistoni.
Silinda ya brake master ndi silinda ya hydraulic ya piston yogwira ntchito mbali imodzi, ndipo ntchito yake ndikusintha mphamvu yamakina yolowetsedwa ndi pedal mechanism kukhala mphamvu ya hydraulic. Pali mitundu iwiri ya masilinda a brake master, chipinda chimodzi ndi chipinda chachiwiri, zomwe zimagwiritsidwa ntchito motsatana mu makina otsekera a hydraulic a single-circuit ndi dual-circuit.
Pofuna kukonza chitetezo cha magalimoto, malinga ndi zofunikira za malamulo apamsewu, dongosolo loyendetsera mabuleki a magalimoto tsopano likugwiritsa ntchito dongosolo loyendetsa mabuleki la magawo awiri, lomwe limapangidwa ndi masilinda awiri a chipinda chimodzi (masilinda awiri a mabuleki a chipinda chimodzi achotsedwa). Dongosolo loyendetsa mabuleki la magawo awiri.
Pakadali pano, pafupifupi makina onse oyendetsera ma hydraulic braking system ndi ma servo braking system kapena ma dynamic braking system. Komabe, m'magalimoto ena ang'onoang'ono kapena opepuka, kuti kapangidwe kake kakhale kosavuta, komanso ngati mphamvu ya brake pedal isapitirire mphamvu ya dalaivala, palinso mitundu ina yomwe imagwiritsa ntchito tandem dual-chamber brake master cylinder kupanga dual-circuit manual hydraulic brake system.
Kapangidwe ka silinda yayikulu ya brake ya zipinda ziwiri yolumikizana
Mtundu uwu wa silinda ya brake master umagwiritsidwa ntchito mu dongosolo la mabuleki a hydraulic brake la dual-circuit, lomwe ndi lofanana ndi masilendala awiri a brake master a single-chamber olumikizidwa motsatizana.
Chipinda cha silinda yayikulu ya brake chili ndi pistoni ya silinda yakutsogolo 7, pistoni ya silinda yakumbuyo 12, kasupe wa silinda yakutsogolo 21 ndi kasupe wa silinda yakumbuyo 18.
Pisitoni yakutsogolo ya silinda imatsekedwa ndi mphete yotsekera 19; pisitoni yakumbuyo ya silinda imatsekedwa ndi mphete yotsekera 16, ndipo imayikidwa ndi mphete yosungira 13. Malo awiri osungira madzi amalumikizidwa motsatana ndi chipinda chakutsogolo B ndi chipinda chakumbuyo A, ndipo amalumikizidwa ndi masilinda akutsogolo ndi akumbuyo a mawilo a brake kudzera mu ma valve awo otulutsira mafuta 3. Pisitoni yakutsogolo ya silinda imakankhidwa ndi mphamvu ya hydraulic ya pisitoni yakumbuyo ya silinda, ndipo pisitoni yakumbuyo ya silinda imayendetsedwa mwachindunji ndi ndodo yokankhira. 15 kukankhira.
Ngati silinda ya brake master sikugwira ntchito, mutu wa pistoni ndi chikho chomwe chili m'zipinda zakutsogolo ndi zakumbuyo zimakhala pakati pa mabowo ozungulira 10 ndi mabowo obwezeretsa 11. Mphamvu yotanuka ya kasupe wobwerera wa pistoni ya silinda yakutsogolo ndi yayikulu kuposa ya kasupe wobwerera wa pistoni ya silinda yakumbuyo kuti zitsimikizire kuti ma pistoni awiriwa ali pamalo oyenera pamene sakugwira ntchito.
Poyendetsa galimoto, dalaivala amaponda pedal ya brake, mphamvu ya pedal imatumizidwa ku ndodo yokankhira 15 kudzera mu njira yotumizira, ndikukankhira pistoni ya silinda yakumbuyo 12 kuti ipite patsogolo. Chikho chachikopa chikaphimba dzenje la bypass, mphamvu ya kumbuyo imawonjezeka. Pansi pa mphamvu ya hydraulic mu chipinda chakumbuyo ndi mphamvu ya spring ya silinda yakumbuyo, pistoni 7 ya silinda yakutsogolo imapita patsogolo, ndipo mphamvu ya kutsogolo imawonjezekanso. Pamene pedal ya brake ikupitiliza kukanikiza pansi, mphamvu ya hydraulic mu zipinda zakutsogolo ndi zakumbuyo imapitirira kuwonjezeka, zomwe zimapangitsa kuti mabuleki akutsogolo ndi akumbuyo azisweka.
Pamene brake yatulutsidwa, dalaivala amamasula pedal ya brake, pansi pa mphamvu ya masipulini a pistoni akutsogolo ndi akumbuyo, pisitoni ndi ndodo yopukutira mu silinda ya brake master zimabwerera pamalo oyamba, ndipo mafuta omwe ali mupaipi amakankhira kutsegula valavu yobwezera mafuta 22 ndikubwerera mmbuyo. Silinda yayikulu imasweka, kotero kuti mphamvu ya braking imatha.
Ngati dera lolamulidwa ndi chipinda chakutsogolo lalephera, pisitoni ya silinda yakutsogolo sipanga mphamvu ya hydraulic, koma pansi pa mphamvu ya hydraulic ya pistoni yakumbuyo ya silinda, pisitoni yakutsogolo ya silinda imakankhidwira kutsogolo, ndipo mphamvu ya hydraulic yopangidwa ndi chipinda chakumbuyo ikhoza kupangitsa gudumu lakumbuyo kupanga mphamvu ya braking. Ngati dera lolamulidwa ndi chipinda chakumbuyo lalephera, chipinda chakumbuyo sichipanga mphamvu ya hydraulic, koma pisitoni yakumbuyo ya silinda imapita patsogolo pansi pa ntchito ya ndodo yokakamiza, ndikulumikizana ndi pisitoni yakutsogolo ya silinda kuti ikankhire pisitoni yakutsogolo ya silinda, ndipo chipinda chakutsogolo chingathe kupanga mabuleki a Hydraulic pressure mawilo akutsogolo. Zikuoneka kuti pamene mapaipi aliwonse mu dual-circuit hydraulic brake system alephera, brake master silinda ikhoza kugwirabe ntchito, koma pedal stroke yofunikira imawonjezeka.
