I-master cylinder (I-Master Cylinder), eyaziwa nangokuthi i-brake main oil (umoya), umsebenzi wayo oyinhloko ukusunduza uketshezi lwebhuleki (noma igesi) ukuze ludluliselwe ku-cylinder yebhuleki ngayinye ukuze iphushe ipiston.
I-brake master cylinder iyisilinda ye-piston hydraulic cylinder esebenza ngendlela eyodwa, futhi umsebenzi wayo ukuguqula okokufaka kwamandla okusebenza ngomshini wokunyathela kube amandla asebenza ngamanzi. Kunezinhlobo ezimbili zamasilinda e-brake master, i-single-chamber kanye ne-dual-chamber, asetshenziswa ngokulandelana kumasistimu okubhuleka e-hydraulic eyi-circuit eyodwa.
Ukuze kuthuthukiswe ukuphepha kokushayela ezimotweni, ngokwezidingo zemithetho yethrafikhi, i-service braking system yezimoto manje isithatha i-dual-circuit braking system, eyakhiwe uchungechunge lwamasilinda ayinhloko enamagumbi amabili (ibhuleki legumbi elilodwa). amasilinda amakhulu asusiwe). i-dual-circuit hydraulic braking system.
Njengamanje, cishe wonke amasistimu wokubhuleka we-hydraulic hydraulic ama-servo braking systems noma ama-dynamic braking systems. Kodwa-ke, kwezinye izimoto ezincane noma ezilula, ukuze kwenziwe isakhiwo sibe lula, futhi ngaphansi kwesimo sokuthi amandla e-brake pedal aweqi ububanzi bamandla angokomzimba omshayeli, kukhona futhi amamodeli asebenzisa ibhuleki le-tandem dual-chamber. I-master cylinder ukwenza ibhuleki le-hydraulic manual eyiziyingi ezimbili. uhlelo.
Isakhiwo se-Tandem ye-double-chamber master cylinder
Lolu hlobo lwe-brake master cylinder lusetshenziswa kusistimu yebhuleki eyi-dual-circuit hydraulic brake, elingana namasilinda ayinhloko angamabhuleki egumbi elilodwa axhunywe ochungechungeni.
Izindlu ze-brake master cylinder ifakwe ngaphambili cylinder piston 7, isilinda piston 12 yangemuva, isilinda sangaphambili sentwasahlobo 21 kanye nesilinda sangemuva sasemuva esingu-18.
I-cylinder piston yangaphambili ivalwe ngendandatho yokuvala 19; i-cylinder piston yangemuva ivalwe ngendandatho engu-16 yokuvala, futhi ibekwe ngendandatho yokugcina 13. Amachibi amabili oketshezi axhunyaniswa negumbi langaphambili B kanye negumbi A elingemuva, futhi axhunyaniswa namasilinda amasondo amabhuleki angaphambili nangemuva. ngamavalvu awokuphuma amafutha 3. Ipiston yesilinda yangaphambili iphushwa amandla asebenza ngogesi i-cylinder piston yangemuva, futhi i-cylinder piston yangemuva iqhutshwa ngokuqondile yi-push rod. 15 phusha.
Lapho isilinda esiyinhloko se-brake singasebenzi, ikhanda lepiston nenkomishi emagumbini angaphambili nangemuva atholakala nje phakathi kwezimbobo zokudlula ezilandelanayo ezingu-10 nezimbobo zesinxephezelo ezingu-11. Amandla anwebekayo entwasahlobo ebuyayo yepiston yesilinda sangaphambili makhulu kunalawo entwasahlobo ebuyayo yepiston yesilinda sangemuva ukuze kuqinisekiswe ukuthi amapiston amabili asesimweni esifanele uma engasebenzi.
Uma ubhuleka, umshayeli unyathela ibhuleki, amandla e-pedal adluliselwa ku-push rod 15 nge-transmission mechanism, bese ephusha isilinda piston 12 ukuze siye phambili. Ngemuva kokuthi inkomishi yesikhumba imboze imbobo yokudlula, ukucindezela emgodini ongemuva kuyanda. Ngaphansi kwesenzo sokucindezela kwe-hydraulic ekamelweni elingemuva kanye ne-spring force yesilinda sangemuva, i-piston 7 ye-cylinder yangaphambili iqhubekela phambili, futhi ingcindezi ekamelweni langaphambili nayo iyanda. Uma i-pedal ye-brake iqhubeka nokucindezelwa phansi, i-hydraulic pressure emakamelweni angaphambili nangemuva iyaqhubeka nokwenyuka, okwenza ibhuleki langaphambili nangemuva.
Uma ibhuleki lidedelwa, umshayeli udedela ibhuleki elinyathelayo, ngaphansi kokusebenza kwe-piston springs ngaphambili nangemuva, i-piston ne-push rod ku-brake master cylinder zibuyela endaweni yokuqala, futhi uwoyela epayipini uphusha uwoyela uvuleke. buyisela ivalvu 22 bese igeleza ibuyele emuva I-master cylinder ibhuleki, ukuze umphumela wokubhuleka unyamalale.
Uma isifunda esilawulwa yigumbi elingaphambili lehluleka, i-cylinder piston yangaphambili ayikhiqizi ingcindezi ye-hydraulic, kodwa ngaphansi kwamandla kagesi we-cylinder piston yangemuva, i-cylinder piston yangaphambili iphushwa iye ekugcineni, bese kuthi ingcindezi ye-hydraulic ikhiqizwe ngemuva. chamber usengenza isondo ezingemuva ukukhiqiza braking force. Uma isifunda esilawulwa yigumbi elingemuva lehluleka, igumbi elingemuva alikhiqizi umfutho we-hydraulic, kodwa i-cylinder piston yangemuva iya phambili ngaphansi kwesenzo se-push rod, bese ithinta i-cylinder piston yangaphambili ukuze iphushele i-cylinder piston phambili, futhi I-front chamber isengakwazi ukukhiqiza amabhuleki e-Hydraulic pressure amasondo angaphambili. Kungabonakala ukuthi uma noma iyiphi isethi yamapayipi ohlelweni lwe-dual-circuit hydraulic hydraulic brake ihluleka, isilinda esiyinhloko sebhuleki isengasebenza, kodwa ukushaywa kwe-pedal edingekayo kuyakhuphuka.
