GDI-moto: ngwaọrụ na karịsịa

GDI-engine na-ezo aka nkeji na kpọmkwem mmanụ ụgbọala ogwu ogbugba, na nke manu ngwakọta ọ dịghị banye n'ime ndị oriri manifold, na mgbe esịtidem combustion engine cylinders. N'oge ahụ, dị ike osisi na-dechara ụgbọala mere na Japan. Karịsịa, "Toyota", "Nissan" na "Mitsubishi".

GDI-engines na akụrụngwa

Ya mere, ka anya na imewe atụmatụ nke a unit. Dị ka anyị kwuru, na GDI-engine nwere kpọmkwem fuel injection n'ime cylinders, nke mere ka o kwe, iji budata onu nkezi mmanụ ụgbọala oriri nke ruo 20-30 percent. Ọzọkwa, a unit e ji eziokwu na maka obere na-ajụ ibu ọ na-abịa stratified ụgwọ. Na nke a, na mmanụ ụgbọala nri n'ime engine cylinder mgbali na GDI banyere 100 atmospheres, nke mere na ọ bụghị jikwaa na-ezu oxygen. N'ihi na ha tụnyere, na ot fuel injection engines na-egbu maramara pụtara na a mgbali nke 3 igwe ndọrọ ego. N'ihi nke a, nke mmanụ ụgbọala na-anọgide na ihe ji nkwụnye, na kpọmkwem oge nke sparking.

Mgbe a nyere ibu nke manu abatakwa oriri manifold, ọ uniformly jupụtara n'ime dum olu, si otú na-akpụ a ngwa ngwa evaporating na ata. Na nke a, enweghị penetration nke oxygen gas ga ọkụ, na ọtụtụ na ọ bụ nanị na-efe tube. Na-emekarị dị otú ahụ ikpe, ndị injector ụgbọala overheats na kandụl, a na-acha ọcha soot. Gịnị na-eme GDI-engine? Ọ na-adịghị na-etolite dị otú ahụ ego, n'ihi ya imewe abụghị ndị trotul valvụ. Ọ, n'aka nke ya, were n'èzí ikuku na-anapụta ya n'ime cylinder (na nke a emee tupu njikere nke mmanụ ụgbọala-air ngwakọta). Na nke a, na moto anaghị imefusị ike ya na ikuku oriri, nke na-abụkarị 3-5 obere horsepower. Ọzọkwa, GDI engine 18 na-oké ya elu nke mkpakọ, nke a na-enweta n'ihi na otu enweghị trotul.

Ọ ga-kwuru na a edo oyi akwa nke oxygen na-kpụrụ, adịru ngwakọta ignites na ngwa ngwa mere ndị pistin na cylinder mgbidi n'oge combustion. Na otú GDI-engine na kacha ibu? Ọ bụrụ na mbụ na nke abụọ mgbe, ụkpụrụ nke stratified ụgwọ, mgbe ahụ, nke a abụghị na zuru ibu. The mmanụ ụgbọala na nke a abatakwa cylinder na ibu ego, ọ bụghị dị ka tupu, n'ihi na nke na ọ na-enwekwu eruba ọnụego na ịta larịị nke na-emerụ bekee ke iyuzucha gas na tinyekwa. N'ihi nke a niile oge a engines na-onwem na ndị ọzọ GDI injectors na oriri manifold. Ha nwere ike belata mmanụ ụgbọala oriri ruo larịị nke ot ụgbọala na mmanụ ụgbọala-agbara nkeji. N'ihi ya, kacha ibu ọ na-erepịakwa hà ego nke mmanụ ụgbọala, na ndapụta kwesịrị ekwesị ike injector ka ot Motors.

Esi kọwaa nke a mgbalị?

A, na kacha ibu na engine GDI-na-amalite na a ọsọ nke 120 kilomita kwa hour, ya mere na ọtụtụ ikpe aku na uba unit erepịakwa mmanụ ụgbọala.