Crankcase ventilation - nei ichidikanwa?
Zviri mukati
Kuderedza kuburitswa kweakasiyana siyana anokuvadza mumhepo kubva ku crankcase yeinjini yekupisa kwemukati kunoitwa nenzira yakakosha crankcase ventilation system.
Zvimiro zveinjini crankcase ventilation system
Exhaust magasi anogona kupinda mu crankcase kubva kumakamuri ekupisa panguva yekushanda kweinjini yemotokari. Mukuwedzera, kuvapo kwemvura, mafuta uye mhute yemafuta inowanzoonekwa mukrankcase. Zvese zvinhu izvi zvinowanzonzi crankcase magasi.
Kuunganidza kwavo kwakanyanya kuzere nekuparadzwa kwezvikamu izvo zveinjini yekupisa mukati iyo inogadzirwa nesimbi. Izvi zvinokonzerwa nekuderera kwehutano hwekuumbwa uye kushanda kweinjini mafuta.
The ventilation system yatiri kufarira inoitirwa kudzivirira inotsanangurwa yakaipa zviitiko. Pamotokari dzemazuva ano, zvinomanikidzwa. Nheyo yebasa rayo iri nyore. Inobva pakushandiswa kwevacuum yakaumbwa muhuwandu hwekutora. Kana iyo yakatsanangurwa vacuum ichionekwa, zvinotevera zviitiko zvinoonekwa muhurongwa:
- kubviswa kwemagasi kubva ku crankcase;
- kucheneswa kubva kumafuta emagasi aya;
- kufamba kuburikidza nemhepo inoputika yezvibatanidza zvakacheneswa kune muunganidzi;
- kupisa kunotevera kwemagasi mukamuri yekupisa kana yakasanganiswa nemhepo.
Dhizaini ye crankcase ventilation system
Pamamotor akasiyana, ayo anogadzirwa nevagadziri vakasiyana, iyo inotsanangurwa sisitimu inoratidzirwa neyayo dhizaini. Panguva imwecheteyo, mune imwe neimwe yeaya masisitimu, mune chero mamiriro ezvinhu, kune akawanda akajairika zvikamu. Izvi zvinosanganisira:
- ventilation valve;
- mafuta separator;
- pombi dzemhepo.
Ivhavha inofanirwa kugadzirisa kudzvinyirira kwemagasi anopinda muhuwandu hwekudya. Kana vacuum yavo yakakosha, valve inoshandura kuvharwa mode, kana isingakoshi - kuvhura.
Iyo inoparadzanisa mafuta, iyo iyo system ine, inoderedza chiitiko chekugadzirwa kwesoti mukamuri yekupisa nekuda kwekuti haibvumiri mhepo yemafuta kupinda mairi. Oiri inogona kuparadzaniswa kubva kumagasi nenzira mbiri:
- cyclic;
- labyrinthine.
Muchiitiko chekutanga, vanotaura nezve centrifugal mhando yemafuta separator. Sistimu yakadaro inofunga kuti magasi anotenderera mairi, uye izvi zvinotungamira kuti mafuta agadzikane pamadziro echigadzirwa, obva adonhedza mu crankcase. Asi iyo labyrinth mechanism inoshanda zvakasiyana. Mariri, crankcase magasi anononoka kufamba kwavo, nekuda kweiyo mafuta anoiswa.
Injini dzinopisa dzemukati dzemazuva ano dzinowanzo kuve nemafuta akasanganiswa masisitimu ekuparadzanisa. Mavari, iyo labyrinth mudziyo wakaiswa mushure meiyo cyclic. Izvi zvinovimbisa kusavapo kwegasi kusagadzikana. Maitiro akadaro panguva ino, pasina kuwedzeredza, akakodzera.
Crankcase ventilation fitting
Pamusoro peSolex carburetors, mukuwedzera, pane nguva dzose kupindira kwemhepo (pasina iyo, iyo yemhepo yemhepo haishande). Kukodzera kwakakosha kwazvo pakushanda kwakagadzikana kweiyo crankcase ventilation yeinjini, uye ichi ndicho chikonzero. Dzimwe nguva kubviswa kwemhando yepamusoro kwemagasi hakuitike nekuda kwekuti vacuum mumhepo sefa idiki. Uye zvino, kuitira kuti kuwedzere kushanda kwegadziriro, rimwe bazi rinowedzerwa rinoiswa mukati maro (kazhinji rinonzi davi duku).
Iyo inongobatanidza iyo throttle zone neyakakodzera, kuburikidza iyo crankcase magasi anobviswa kubva mukati memoto injini. Davi rakadaro rekuwedzera rine dhayamita diki - kwete kupfuura mamirimita mashoma. Iyo yekumisikidza pachayo iri munzvimbo yakaderera ye carburetor, iyo, pasi pepombi yekumhanyisa munzvimbo ye throttle. Imwe hose yakakosha inodhonzwa pane yakakodzera, iyo inoita basa rekupedza.
• kudonha kwesimba;
• kuwedzera kushandiswa kwemafuta;
• kusvibiswa kwakakurumidza uye kwakanyanya kwevhavhavha yevhavha uye idle speed controller;
• mafuta mumhepo sefa.
Zvizhinji zvezviratidzo izvi zvinogona kuverengerwa kune mamwe malfunctions, semuenzaniso, malfunctions mune ignition system. Saka, kana uchiongorora, zvinokurudzirwa kutarisa crankcase ventilation system. Sezvo simiti yemagetsi inopera, soot yakawanda, soot uye zvimwe zvinosvibisa zvinopinda mu crankcase. Nokufamba kwenguva, vanoiswa pamadziro enzira nemapombi.
Iyo yakashata crankcase ventilation system inogona kukonzera matambudziko mazhinji munguva yechando. Quarry magasi anogara aine zvimedu zvemvura, achipinda mumhepo inofefetera, anogona kunyura muutsi uye kuungana chero kupi. Injini painotonhora, mvura inogarwa nechando yoshanduka kuita aizi, ichivharira machani. Muzviitiko zvepamberi, machani nemapombi zvakavharwa zvekuti kudzvanywa mu crankcase kunokwira uye kusvina dipstick, nepo injini yese inosaswa nemafuta. Izvi zvinogona kuitika pamota ine chero mileage, kunze kweinjini ine yakawedzera crankcase kudziyisa.
