The viscosity mafuta ayo simba pamusoro motokari injini

Chero mvura ane viscosity, maitire ichi anosarudza fluidity kwayo. mafuta Automotive rinotarisirwa kuita mabasa akasiyana-siyana kuitira mumwe parameter ane simba rayo riri hombe yepamusoro. The viscosity mafuta hakuna anosara.

The chikuru hwokugadzira dambudziko chero mafuta injini - kumisa kukweshera kutamira zvikamu panguva injini oparesheni. Zvakanakisa, kuti kukweshera simba zvinofanira usingashandi nemafuta mukuru mukurumari, zvivako zvayo zvinofanira kuramba achitsungirira pamusoro navanopinda tembiricha siyana.

Kuziva pfungwa iyi tsika, uye kuumba nenhumbi rinonangana zvose zvinodiwa, zvakaoma chaizvo. Uyezve, tapota ziva kuti panguva kwebasa mutoro ari dzichichinja, uye motokari injini mafuta tembiricha ichava yakasiyana chaizvo, mune dzimwe nhambo nayo kuchasvika 140-150 inegumi.

Zvisinei, nyanzvi dziri kuramba kushanda kusika injini mafuta, iyo yaizova sezvo pedyo ehupfumi aro runodiwa parameters. Science akaita munzvimbo iyi zvikuru danho mberi, saka injini ano zvikuru simba uye inobudirira kupfuura ayo vamutangira, uye vanoshandira yakareba.

The viscosity yemafuta ndiyo imwe inokosha parameters. Nepo injini ushamwari kana kwete kushanda pane zvizere chinzvimbo, namafuta ari muinjini iri kutanga thicken. Panyaya iyi pane chinodiwa kuti mafuta vanofanira kuramba emura pasi chero ezvinhu, kunyange kana tembiricha kunze zvakanaka pasi razero. The nani fluidity mafuta, kuti zviri nani achadzivirira injini panguva oparesheni.

Indekisi viscosity

Kuziva viscosity mafuta, vanamazvikokota vakasuma chaiyo indekisi, iyo inoratidza kutsamira huru parameters (kusanganisira viscosity) ari tembiricha. The yepamusoro indekisi, nani mafuta anochengeta fluidity ayo kunyange panguva yakaderera tembiricha.

The mafuta vanofanira mumamiriro ezvinhu zvose kuramba injini zvikamu, asi panguva imwe chete kuramba chokubuda yaro. Oil kupatsanura ari raiwanzoitwa pamusoro indekisi sezvazvakaita chimwe chezvinhu zvinokosha zviratidzo, izvo kune pamwero kunoratidza huru unhu.

5W indekisi kunoratidza kuti injini inogona kumhanya kunyange panguva tembiricha kuti - madhigirii 35 pasina preheating. Rezasi tembiricha, mafuta denser ichava, uye zvakaoma kuti "kwokunangisa" injini, ikoku kunoreva kuti Starter havagoni crank injini. Pakusarudza zvikuru mafuta injini unofanira kugara pfungwa huru mabasa, asi kwete kukanganwa kunenge ari mugadziri wacho motokari. Zvakakodzera kufunga pamasikiro injini, ukuru kudzikira, vakawanda modes kushanda, uye zvichingodaro.

Engine kunyatsoshanda

Mukuwedzera, mafuta viscosity kunokanganisa injini kuita, kureva simba kuparadzirwa. Kana injini iri kumhanya mamwe simba iri kupedzerwa yayo zvinodiwa zvemukati, i.e. izvi zvinoreva kuti injini zvinoda simba rokukurira frictional mauto zvisaitike nokudyidzana dzakasiyana nhengo. The nani uye zvakanyanya aizova mafuta, shoma simba ruchaderera iri.

Zvino kushandiswa kwemafuta kupatsanura, akapinda pamusoro American Society of Automotive Engineers. Kuti tiwane imwe kana rimwe muchikwata, mafuta inofanira kusvitsa zvimwe zvinodiwa. Kinematic viscosity pakati mafuta kunotemwa pa 40 100 madhigirii, uye kunoonekwa kupfuura munhu curved chubhu chaiyo - viscometer. Pahwaro uyu akasarudza chaiyo viscosity mafuta, iyo inoshandiswa kuziva chinokosha inonyatsoita. nemiedzo yakadaro kuona unhu mafuta, uyewo basa imwe muchikwata.