kuvira kwemvura yebhureki
Kushandisa pfungwa
Nheyo yekushanda kweazvino mabhureki system yakavakirwa pakufambiswa kwesimba kubva kune pedal kuenda kune mabhureki pads kuburikidza ne hydraulics. Nguva yezvakajairwa mabhureki emuchina mumotokari dzinotakura vanhu yaenda kare. Nhasi, mweya kana mvura inoshanda semutakuri wesimba. Mumotokari dzinotakura vanhu, munenge 100% yezviitiko, mabhureki ane hydraulic.
Hydraulics semutakuri wesimba inoisa zvimwe zvirambidzo pane zvemuviri zvimiro zvebhureki fluid.
Chekutanga, iyo brake fluid inofanirwa kuve ine hukasha kune zvimwe zvinhu zvehurongwa uye kwete kukonzera kutadza kamwe kamwe nekuda kweichi chikonzero. Chechipiri, mvura inofanira kushivirira kutonhora kwepamusoro uye kwakaderera zvakanaka. Uye chechitatu, inofanira kunge isingagoneki zvachose.
Mukuwedzera kune izvi zvinodiwa, kune zvimwe zvakawanda zvinotsanangurwa muFMVSS Nhamba ye116 yeDhipatimendi reKutakura. Asi ikozvino tichatarisa pachinhu chimwe chete: incompressibility.
Mvura iri mubhureki system inogara ichiratidzwa nekupisa. Izvi zvinoitika kana kupisa kunotamiswa kubva kune anopisa mapadhi uye discs kuburikidza nesimbi zvikamu zvechasi yemotokari, pamwe nekubva mukati mekuputika kwemvura mukati kana uchifamba nehurongwa nekumanikidza kwakanyanya. Kana chimwe chikumbaridzo chekupisa chasvika, mvura inovira. Gasi plug inoumbwa, iyo, seyese chero gasi, inomanikidzwa nyore nyore.
Yakaputswa chimwe chezvinonyanya kudiwa kune bhureki fluid: inova compressible. Mabhureki anokundikana, sekunge kwakajeka uye kwakazara kuchinjisa kwesimba kubva kune pedal kuenda kumapadhi kunova kusingabviri. Kudzvanya pedal kunongomanikidza iyo gasi plug. Kunenge pasina simba rinoshandiswa pamapedhi. Naizvozvo, parameter yakadai seyekubikira kweiyo brake fluid inopiwa kutariswa kwakanyanya.
Boiling point yemhando dzakasiyana dzebrake fluid
Nhasi, motokari dzinoshandisa makirasi mana emabhureki emvura: DOT-3, DOT-4, DOT-5.1 uye DOT-5. Zvitatu zvekutanga zvine glycol kana polyglycol base pamwe nekuwedzerwa kwechikamu chiduku chezvimwe zvikamu zvinowedzera kushanda kwemvura. Brake fluid DOT-5 inogadzirwa pachigadziko chesilicone. Iyo yekubikira yezvinwiwa izvi mune yavo yakachena fomu kubva kune chero mugadziri haina kudzika pane iyo inoratidzirwa muchiyero:
- DOT-3 - kwete pasi pe205 ° C;
- DOT-4 - kwete pasi pe230 ° C;
- DOT-5.1 - kwete pasi pe260 ° C;
- DOT-5 - kwete pasi pe260 ° C;
Glycols uye polyglycols vane chinhu chimwe chete: zvinhu izvi hygroscopic. Izvi zvinoreva kuti vanokwanisa kuunganidza hunyoro kubva mumhepo muhuwandu hwavo. Uyezve, mvura inosanganiswa zvakanaka neglycol-based brake fluids uye haina kudonha. Izvi zvinoderedza kubikira kwakawanda. Kunyorova kunokanganisawo kutonhora kwebhureki fluid.
Izvi zvinotevera zvakajairwa zvekubikira mapoinzi ezvinwiwa zvakanyoroveswa (nemvura inokwana 3,5% yehuwandu hwehuwandu):
- DOT-3 - kwete pasi pe140 ° C;
- DOT-4 - kwete pasi pe155 ° C;
- DOT-5.1 - kwete pasi pe180 ° C.
Kusiyana, iwe unogona kusimbisa iyo silicone fluid kirasi DOT-5. Kunyangwe idi rekuti hunyoro hahunyunguruke zvakanaka muhuwandu hwahwo uye hunonaya nekufamba kwenguva, mvura inodzikisawo nzvimbo yekuvira. Chiyero chinotaridza panovira mvura ye3,5% yakanyoroveswa DOT-5 padanho risiri pasi pe180°C. Sezvo mutemo, kukosha kwechokwadi kwesilicone fluid yakakwirira kwazvo kudarika chiyero. Uye mwero wekuunganidza hunyoro muDOT-5 ishoma.
Hupenyu hwesevhisi yeglycol zvinwiwa kusati kwaunganidzwa kwehuwandu hwakakosha hunyoro uye kuderera kusingagamuchirwi munzvimbo yekubikira kunobva pa2 kusvika kumakore matatu, kune silicone zvinwiwa - anenge makore mashanu.
