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Karamin tsari | guda 20 |
Biyan kuɗi | L/C, T/T, O/A, D/A, D/P |
Bayarwa | A cikin kwanaki 15 |
Keɓancewa | Akwai |
Pistons wani bangare ne na injuna masu jujjuyawa, famfo mai jujjuyawar, damfarar gas, na'ura mai aiki da karfin ruwa da silinda na pneumatic, da sauran nau'ikan injina iri daya. Wani sashi ne mai motsi wanda ke ƙunshe a cikin silinda kuma yana hana iska ta zoben piston. A cikin injin, manufar ita ce watsa ƙarfi daga faɗaɗa iskar gas a cikin silinda zuwa crankshaft ta sandar fistan da / ko sanda mai haɗawa. A cikin famfo, tasirin yana jujjuya shi, kuma ana ɗaukar ƙarfi daga crankshaft zuwa fistan don matsawa ko fitar da jikin famfo. Ruwa a cikin silinda. A wasu injuna, fistan kuma yana aiki azaman bawul ta hanyar rufewa da fallasa tashoshin jiragen ruwa a cikin silinda.
Fitin da kansa an yi shi da ƙarfe mai tauri kuma yana gyarawa a cikin fistan, amma yana iya motsawa cikin yardar kaina a cikin sandar haɗi. Wasu ƙira suna amfani da ƙirar "cikakkiyar iyo" waɗanda ke kwance a cikin sassan biyu. Dole ne a hana dukkan fil daga motsi zuwa gefe, kuma iyakar fitilun ana hana su sanya su cikin bangon Silinda ta hanyar kewayawa.
Ana samun rufewar iskar gas ta hanyar amfani da zoben fistan. Waɗannan su ne kunkuntar zoben ƙarfe da yawa waɗanda suka yi daidai da ramukan piston, kusa da saman fistan. An rabu da zoben a wani wuri a kan gefen, yana ba su damar danna kan silinda tare da matsananciyar bazara. Ana amfani da nau'i nau'i nau'i nau'i biyu: zobe na sama yana da tsayi mai tsayi kuma yana ba da hatimin gas; ƙananan zobe yana da kunkuntar gefe da bayanin martaba na U kuma yana aiki azaman mai goge mai. Akwai da yawa na mallakar mallaka da cikakkun fasalulluka masu alaƙa da zoben piston.
An yi pistons na farko da baƙin ƙarfe, amma idan za a iya amfani da gawa mai sauƙi, zai sami fa'ida a bayyane ga ma'aunin injin. Domin samar da pistons da za su iya jure zafin konewar injin, ya zama dole a samar da sabbin allurai, irin su Y alloy da Hiduminium, musamman a matsayin pistons.
Piston diski ne mai motsi wanda ke kewaye a cikin silinda wanda ke da iska ta zoben fistan.
Pistons suna taimakawa don canza makamashin zafi zuwa aikin injiniya.
Akwai nau'ikan pistons guda uku, kowanne mai suna da siffarsa: saman lebur, kubba da tasa.