Olee otú ndị EGR valvụ?

Mmadụ ole na ole mara, ma ọ bụ n'ihi na EGR nwere ike budata belata ụgbọala mmanụ ụgbọala oriri, melite engine arụmọrụ, normalize ya ọrụ ma belata larịị nke detonation. E nwere ndị dị otú ahụ a usoro a na-a ogologo oge, na na na oge ọ na-etinyere n'ụzọ zuru okè na niile ugbo ala. Ọbụna na mba "Cornfield" e dị otú ahụ a na ngwaọrụ.

Gịnị mere anyị kwesịrị usoro ihe a?

Recirculation nke iyuzucha, haruru na-mkpa iji na engine adịghị efu ike ya maka emission nke unburnt mmanụ ụgbọala residues. Na nke a emee dị ka ndị a. Ọ bụrụ na ọnọdụ okpomọkụ ke combustion ulo ọnụ na oxygen, nitrogen-amalite na-etolite nitric oxide. Na mmanụ ụgbọala engine O2 mkpa maka oru oma combustion nke manu, na n'ihi na ọ na-ebelata ego nke nitrogen, mmiri mmiri na-adịghị kpamkpam combusted. N'ihi ya, mmanụ ụgbọala nanị enwupụta n'ime ọjà, mmanụ ụgbọala oriri na-abawanye, na a mbelata arụmọrụ nke esịtidem combustion engine. The EGR valvụ na-enye ohere mmanụ ụgbọala ọkụ si tupu ọgwụgwụ nke-ekwe omume, nke mere na normalized ike na mmanụ ụgbọala oriri na ụgbọala.

Gịnị bụ valvụ?

Na echiche nke a obere disk na a tube nke na jikọọ na oriri manifold na na-mmasị na cylinder isi. Na quiescent obodo iyuzucha gas recirculation valvụ ( "Audi" gụnyere) bụ mechiri emechi. Ma ozugbo ahụ engine mmanụ ụgbọala ọkọnọ emee, ọ na-actuated. ikuku agụụ guzobere esite, magbuo ime ka akpụkpọ ahụ, na ya, n'aka nke ya, ga-emepe EGR valvụ.

umu

Ugbu a, e nwere ọtụtụ ụdị nke data na ngwaọrụ. The EGR valvụ bụ ịkpata (n'aka ekewa n'ime ise mgbanwe) na electronic (3 e mgbanwe).

Gịnị ka ọ na-eme?

A na usoro bụ isi akụrụngwa nke recirculation usoro. Ọ na-alaghachi azụ òkè bekee edifọp ke na oriri manifold na agwakọta ha na ikuku. Nke ikpeazụ, n'aka, enwekwu combustion okpomọkụ (ruru ka oxygen - O2). Ya mere, site artificially mbenata ya ọdịnaya na Mbelata a ogo combustion emee nke mmanụ ụgbọala-air ngwakọta. Oxygen mkpatụ na nitrogen, na n'ihi na ogo nke okpomọkụ ọnụ, ọ na-aghọ ihe ndị ọzọ mere na-ulo mmanụ ụgbọala ọkụ kpamkpam.

Ke adianade do, iyuzucha gas recirculation valvụ (BMW gụnyere) n'ụzọ ebelata pumping ọnwụ, dị ka e nwere ndị dị otú ahụ a siri ike dobe na nsogbu na trotul. Low combustion okpomọkụ ebelata larịị nke detonation, nke bụ oké uru maka moto (dịghị torque weere). Banyere dizel nrụnye ebe a EGR valvụ apụta ihe "ike" ime ihe nke moto na-abaghị uru: ekele zie combustion okpomọkụ ebelata nrụgide na-ulo, ya mere, dị ike vibrations.