indawo abilayo ye-brake fluid
Umqondo osetshenziswayo
Umgomo wokusebenza kwesistimu yamabhuleki yesimanje isuselwe ekudluliselweni kwamandla ukusuka ku-pedal kuya kuma-brake pads ngama-hydraulic. Isikhathi samabhuleki ajwayelekile ezimotweni zabagibeli sesidlulile. Namuhla, umoya noma uketshezi lusebenza njengesithwali samandla. Ezimotweni zabagibeli, cishe ku-100% wamacala, amabhuleki ane-hydraulic.
AmaHydraulics njengesithwali samandla abeka imingcele ethile kuzakhiwo ezibonakalayo ze-brake fluid.
Okokuqala, i-brake fluid kufanele ibe nolaka ngokusesilinganisweni kwezinye izakhi zesistimu futhi ingabangeli ukwehluleka okungazelelwe ngenxa yalesi sizathu. Okwesibili, uketshezi kufanele lubekezelele amazinga okushisa aphezulu naphansi kahle. Futhi okwesithathu, kufanele kube incompressible ngokuphelele.
Ngaphezu kwalezi zidingo, kunezinye eziningi ezichazwe kuzinga le-FMVSS No. 116 loMnyango Wezokuthutha wase-US. Kodwa manje sizogxila entweni eyodwa kuphela: incompressibility.
Uketshezi olusohlelweni lwamabhuleki luhlala luchayeka ekushiseni. Lokhu kwenzeka lapho ukushisa kudluliselwa kusuka kumaphedi ashisayo nama-disc ngokusebenzisa izingxenye zensimbi ze-chassis yemoto, kanye nokungqubuzana koketshezi lwangaphakathi lapho uhamba ngesistimu enengcindezi ephezulu. Lapho umkhawulo oshisayo ufinyelelwa, uketshezi luyabila. Kwakhiwa ipulaki yegesi, okuthi, njenganoma iyiphi igesi, icindezelwe kalula.
Enye yezidingo eziyinhloko ze-brake fluid iphulwa: iba yi-compressible. Amabhuleki ahluleka, njengoba ukudluliselwa kwamandla okucacile nokuphelele kusuka ku-pedal kuya kuma-pads kuba yinto engenakwenzeka. Ukucindezela i-pedal kumane kucindezela ipulaki yegesi. Cishe awekho amandla asetshenziswa kumaphedi. Ngakho-ke, ipharamitha efana nendawo yokubilisa ye-brake fluid inikezwa ukunakwa okukhethekile.
Iphuzu elibilayo lama-brake fluids ahlukahlukene
Namuhla, izimoto zabagibeli zisebenzisa amakilasi amane ama-brake fluids: i-DOT-3, i-DOT-4, i-DOT-5.1 ne-DOT-5. Ezintathu zokuqala zinesisekelo se-glycol noma se-polyglycol kanye nokwengezwa kwephesenti elincane lezinye izingxenye ezikhulisa ukusebenza koketshezi. I-Brake fluid DOT-5 yenziwe ngesisekelo se-silicone. Iphoyinti lokubilisa lalolu ketshezi ngendlela yalo emsulwa kunoma yimuphi umkhiqizi alikho ngaphansi kwephuzu eliboniswe ezingeni:
- I-DOT-3 - hhayi ngaphansi kuka-205 ° C;
- I-DOT-4 - hhayi ngaphansi kuka-230 ° C;
- I-DOT-5.1 - hhayi ngaphansi kuka-260 ° C;
- I-DOT-5 - hhayi ngaphansi kuka-260 ° C;
Ama-glycols nama-polyglycol anesici esisodwa: lezi zinto ziyi-hygroscopic. Lokhu kusho ukuthi bayakwazi ukuqongelela umswakama ovela emkhathini ngomthamo wabo. Ngaphezu kwalokho, amanzi ahlangana kahle ne-glycol-based brake fluids futhi awadli. Lokhu kwehlisa izinga lokubilisa kakhulu. Umswakama ubuye ube nomthelela omubi endaweni yokubanda ye-brake fluid.
Okulandelayo ngamanani ajwayelekile ajwayelekile abilayo oketshezi olumanzi (nokuqukethwe kwamanzi okungu-3,5% wevolumu ephelele):
- I-DOT-3 - hhayi ngaphansi kuka-140 ° C;
- I-DOT-4 - hhayi ngaphansi kuka-155 ° C;
- I-DOT-5.1 - hhayi ngaphansi kuka-180 ° C.
Ngokwehlukana, ungagqamisa isigaba se-silicone fluid DOT-5. Naphezu kweqiniso lokuthi umswakama awuncibiliki kahle kumthamo wawo futhi ukhuphuka ngokuhamba kwesikhathi, amanzi abuye ehlise iphuzu elibilisayo. Izinga liphawula indawo yokubilisa yoketshezi lwe-DOT-3,5 olumanziswe ngo-5% ezingeni elingekho ngaphansi kuka-180°C. Njengomthetho, inani langempela lamanzi e-silicone liphakeme kakhulu kunezinga elijwayelekile. Futhi izinga lokuqoqwa komswakama ku-DOT-5 lincane.
Ukuphila kwesevisi ye-glycol liquids ngaphambi kokuqoqwa kwenani elibucayi lomswakama kanye nokwehla okungamukeleki endaweni yokubilisa kuvela eminyakeni emi-2 kuya kwemi-3, kuketshezi lwe-silicone - cishe iminyaka emi-5.
