Njupụta mmanụ engine. Kedu paramita ọ dabere?
Ihe
Mmanya njupụta dị elu
Njupụta nke mmanụ ụgbọala dịgasị iche na ọkwa nke 0,68-0,95 kg / l. A na-ekewa mmanu nwere ihe ngosi dị elu karịa 0,95 kg / l dị ka njupụta dị elu. Mmanụ ndị a na-ebelata nrụgide n'ibu na nnyefe hydraulic na-enweghị nkwụsị nke arụmọrụ. Otú ọ dị, n'ihi ụbara njupụta, mmanu anaghị abanye n'ime ebe siri ike iru nke piston cylinders. N'ihi ya: ibu na usoro crank (crankshaft) na-abawanye. Oriri mmanu mmanu na-abawanye na nkwụnye ego coke na-etolitekarị.
Mgbe afọ 1,5-2 gasịrị, a na-ejikọta mmanụ mmanu site na 4-7% nke uru mbụ ya, nke na-egosi mkpa ọ dị iji dochie mmanụ mmanu.
Mmanụ moto njupụta dị ala
Mbelata nke oke oke n'okpuru 0,68 kg / l bụ n'ihi iwebata adịghị ọcha dị obere, dịka ọmụmaatụ, paraffins dị arọ. Mmanụ mmanu na-adịghị mma n'ọnọdụ dị otú a na-eduga ngwa ngwa nke ihe hydromechanical nke injin, ya bụ:
- Mmiri mmiri ahụ enweghị oge iji mmanu mmanu n'elu nke usoro na-akpụ akpụ ma na-asọba na crankcase.
- Mmụba ọkụ na coking na akụkụ igwe nke injin combustion n'ime.
- Oke ikpo ọkụ nke usoro ike n'ihi mmụba nke ike esemokwu.
- Mmụba oriri mmanu mmanu.
- Ihe nzacha mmanụ ruru unyi.
Ya mere, maka ịrụ ọrụ ziri ezi nke ligament "cylinder-piston", a chọrọ mmanụ engine nke njupụta kacha mma. A na-ekpebi uru ahụ maka ụdị injin a kapịrị ọnụ ma akwadoro ya dịka nhazi SAE na API.
Isiokwu njupụta nke oyi moto mmanụ
A na-ekewa mmanụ aṅụ nke index 5w40-25w40 gosipụtara dị ka ụdị oyi (W - Winter). Njupụta nke ngwaahịa ndị dị otú ahụ dịgasị iche na 0,85-0,9 kg / l. Ọnụ ọgụgụ dị n'ihu "W" na-egosi okpomọkụ nke piston cylinders na-atụgharị na ntụgharị. Ọnụọgụ nke abụọ bụ viscosity index nke mmiri na-ekpo ọkụ. Ndekọ njupụta nke mmanu klas 5W40 bụ nke kachasị ala n'etiti ụdị oyi - 0,85 kg / l na 5 Celsius. Ngwaahịa yiri nke 10W40 klas nwere uru nke 0,856 kg / l, na maka 15w40 oke bụ 0,89-0,91 kg / l.
SAE engine mmanụ ọkwa | Njupụta, kg/l |
5w30 | 0,865 |
5w40 | 0,867 |
10w30 | 0,865 |
10w40 | 0,865 |
15w40 | 0,910 |
20w50 | 0,872 |
Njupụta mmanụ engine eji
Mgbe afọ 1-2 gachara, njirimara anụ ahụ nke mmanụ aṅụ na-akawanye njọ. Agba nke ngwaahịa ahụ dịgasị iche site na odo odo na agba aja aja. Ihe kpatara ya bụ ịmepụta ngwaahịa ire ere na ọdịdị nke mmetọ. Asphaltene, ihe ndị na-emepụta carbene, yana soot na-ekpuchi ọkụ bụ isi ihe na-eduga na akara nke mmanụ mmanu nka. Dịka ọmụmaatụ, mmiri mmiri 5w40 nke nwere ọnụ ahịa 0,867 kg / l mgbe afọ 2 gachara nwere uru nke 0,907 kg / l. Ọ gaghị ekwe omume ikpochapụ usoro kemịkalụ na-emebi emebi na-eduga na mgbanwe njupụta nke mmanụ engine.
Lelee ihe onyonyo a na YouTube