The viscosity nke mmanụ na ya mmetụta na ụgbọala engine

Ọ bụla mmiri mmiri nwere a viscosity, ọ bụ nke a ji mara na-ekpebi ya fluidity. Automotive mmanụ ezubere ịrụ a dịgasị iche iche nke ihe aga-eme otú ọ bụla oke nwere ya mmetụta na mkpokọta mma. The viscosity nke mmanụ bụ sokwa.

Isi technical nsogbu nke ọ bụla engine mmanụ - kwụsị esemokwu nke na-akpụ akpụ akụkụ n'oge engine ọrụ. N'eziokwu, ndị esemokwu ike kwesịrị ntakiri na elu anwụ ngwa ngwa mmanụ, ya Njirimara kwesịrị ịnọgide mgbe nile na-elekọta a obosara okpomọkụ nso.

Na-aghọta nke a echiche na omume, na ike a umi na-ezukọ niile chọrọ, ọ bụ nnọọ ike. Ke adianade do, biko na-maara na n'oge na-ije nke ibu na-agbanwe mgbe nile, na akpakanamde engine mmanụ okpomọkụ ga-adị nnọọ iche, na ụfọdụ oge ọ ga-eru 140-150 degrees.

Otú ọ dị, ndị ọkachamara na-mgbe niile na-arụ ọrụ ike engine mmanụ, nke ga-dị ka nso na ya Njirimara na chọrọ kwa. Science mere na mpaghara ebe a nnọọ a nzọụkwụ na-atụ, ka oge a engines bụ ihe ndị ọzọ dị ike ma dị irè karịa ya ụzọ, na ha na-arụ ọrụ ọzọ.

The viscosity nke mmanụ bụ otu n'ime ihe ndị kasị mkpa parameters. Ezie na engine bụ oyi ma ọ bụ na-arụ ọrụ na zuru ike, mmanụ na engine na-amalite thicken. A na njikọ e nwere ihe a chọrọ na mmanụ kwesịrị ịnọgide na mmiri mmiri n'okpuru ọnọdụ ọ bụla, ọbụna ma ọ bụrụ na n'èzí okpomọkụ bụ nke ọma n'okpuru efu. The mma fluidity nke mmanụ, mma ọ ga-echebe engine n'oge ọrụ.

The index nke viscosity

Iji chọpụta viscosity nke mmanụ, ndị ọkachamara ẹkenam a pụrụ iche index, nke na-egosiputa na nduzi nke isi parameters (gụnyere viscosity) nke okpomọkụ. The elu index, mma mmanụ na-eme ya fluidity ọbụna na ala okpomọkụ.

The mmanụ kwesịrị n'ọnọdụ nile ịnọgide na-engine akụkụ, ma n'otu oge ịnọgide na-enwe ya oruru. Oil nhazi ọkwa a na-emekarị rụrụ na index, dị ka ọ bụ otu n'ime ndị kasị mkpa na-egosi, nke ruo n'ókè ụfọdụ na-egosipụta na isi e ji mara.

5W index na-egosi na engine nwere ike na-agba ọsọ ọbụna na a okpomọkụ nke - 35 degrees enweghị preheating. The ala na okpomọkụ, denser mmanụ ga-aghọ, na ọ bụ ike "iduzi" na engine, nke a pụtara na Starter ike crank na engine. Mgbe ahọpụta a akpan akpan moto mmanụ na ị mgbe niile kwesịrị ilekwasị anya isi ihe aga-eme, ma ọ bụghị na-echefu na-atụ aro nke emeputa ụgbọala. Ọ dị mkpa n'ime akaụntụ imewe nke engine, ogo arịa ọrịa, ọtụtụ nkịtị ụdịdị nke ime, na na.

engine arụmọrụ

Ke adianade do, mmanụ viscosity na-emetụta ndị engine arụmọrụ, ya bụ ike nkesa. Mgbe engine na-agba ọsọ ụfọdụ nke ume nọrọ na ya esịtidem mkpa, i.e. nke a pụtara na moto-achọ ike imeri frictional agha ịda na kọntaktị dị iche iche. The mma na ndị ọzọ rụọ ọrụ nke ọma ga-abụ mmanụ, na obere ume ga-egbughị na nke a.

Ugbu a na-eji mmanụ nhazi ọkwa, banye n'elu American Society of Automotive Engineers. Iji nweta otu ma ọ bụ ndị ọzọ, Atiya, mmanụ aghaghị iru ihe ụfọdụ a chọrọ. Kinematic viscosity nke mmanụ kpebisiri ike na 40 na 100 degrees, na tụrụ site na-agafe a pụrụ iche curved tube - viscometer. Na ndabere nke a kpebisiri ike n'ezie viscosity nke mmanụ, nke a na-eji ya iji chọpụta a pụrụ iche usoro. Ule dị otú iji chọpụta àgwà nke mmanụ, nakwa dị ka na-ekenye a na-na udi.