BENZINLI DVIGATELLARDA DETONATSIYANING KELIB CHIQISH SABABLARINI O’RGANISH
Keywords:
Detonatsiya, yonilg’i, benzinlili dvigatellar, yonish jarayoni, havoning miqdori, dvigatelning detallari.Abstract
Benzinlili dvigatellarda yonish jarayoni tezligiga ko‘p omillar, yonilg‘ining tarkibi, havoning miqdori, namligi yonish kamerasi ichidagi bosim, harorat ta’sir qiladi. Dvigatel detonatsiyali ishlaganda alangalanishning tarqalishi boshida bir xil bo‘lsa ham, lekin yonish jarayonining oxiriga borganda yonish tezligi (alanganing tarqalish tezligi) juda katta bo‘lib, 1500-2000m/s portlash orqali boradi. Detonatsiya yonish jarayonining noto‘g‘ri borishidir. Kuchli detonatsiya vaqtida dvigatelning quvvati kamayadi, ishlatilgan gazlar qop-qora tutun ko‘rinishida chiqadi, dvigatelning detallari issiqlik ta’siridan zo‘riqib ishlaydi. Yonish jarayoni normal kechganda yonilg’ining bir qismi alangalanib, alanga fronti sekin-asta kengayib boradi. Yonish tezligi bir xil tarqaladi, bosim ham bir tekisda oshib boradi, dvigatel esa ravon ishlaydi. Yonish jarayoniga benzinning frakstion tarkibi katta ta’sir ko’rsatadi.
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