Abin hawa hudu-bugun jini engine

Kunsha na hudu engine cylinders, wanda aka saka a kan crankcase kuma a saman rufaffiyar kai. Carter kasa da tire lazimta. A Silinda kai bawuloli aka kafa - da mashiga ruwa da kanti, da bututun ƙarfe ga allura na man fetur (Diesel) injuna, ko kuma walƙiya ƙonewa (fetur). Ciki da fistan motsa, an haɗa ta hanyar da fistan fil tare da babba shugaban da a haɗa sanda. Ƙananan shugaban da a haɗa sanda aka rufe cervix crankshaft babban mujallolin da ake saka a zahiri. A fistan a cikin Silinda aka hatimce ta musamman zobba. A karshen da crankshaft ne mai ƙayyadadden ajali flywheel.

Kira babba matattu batu matsayi shagaltar da ta fistan a karshen ta sama bugun jini, kasa matattu batu ne da ake kira wuri shagaltar a karshen downward tafiya.

Kissa da aka kira da motsi na da fistan daga daya matattu cibiyar zuwa wani. Hijira kafa a kan shi a lokacin da aka gano a TDC, konewa jam'iyya ne mai siga. engine kawar da ko kawar da girma - shi ne yawan sake ta fistan lokacin da motsi daga matattu batu. A girma daga cikin Silinda - a total darajar da konewa jam'iyya tare da aiki.

Matsawa rabo ne mai muhimmanci al'amari, wanda aka bayyana a matsayin rabo na da cikakken Silinda girma ga total girma na konewa jam'iyya. Modern guda-Silinda engine yana da wani matsawa rabo na game da 10. A single-Silinda hudu-bugun jini engine yana da mafi girma matsawa rabo, ba kasa da 20.

Hudu-bugun jini engine a farkon na ci bugun jini a lokacin da ci bawul buɗe, idan da fistan farawa motsi daga saman matattu cibiyar. A kan aiwatar da motsi da injin da aka kafa a cikin Silinda da hudu-bugun jini engine sami wani cakuda iska da kuma man fetur tururi, wanda sau da yawa ake kira man fetur ko man fetur-iska cakuda.

Bayan da fistan BDC zai faru, saboda da juyawa daga cikin crankshaft, sai ta fara da hawa zuwa saman matattu cibiyar, wanda aka dauke farkon na matsawa bugun jini. Wannan rufe mashiga bawul, kuma a ko'ina cikin zagayowar, duka biyu bawuloli ake rufe. A combustible cakuda da cewa shi ne a cikin Silinda a kawar da na fistan zuwa TDC aka matsa, ta zafin jiki da kuma matsa lamba karuwa. Akwai matsakaicin daraja a lokacin da matsawa fistan TDC. Amma tun da man fetur konewa aiwatar daukan wani lokaci domin combustible cakuda shi ne kunna a gaba, kafin fistan kai TDC a kan matsawa bugun jini. A cakuda da aka kunna ta wani lantarki walƙiya wanda tsalle tsakanin wayoyin na toshe. Daga lokacin da walƙiya BTDC, da crank kwana kira da kwana na precession ƙonewa.

A wani gagarumin yawan ikon-cinyewa gas saki a lokacin man fetur konewa, latsa a kan fistan, wanda sa da engine yin hudu bugun jini sake zagayowar lokacin na gaba da ke faruwa tare da bawuloli rufe a fistan bugun jini daga TDC zuwa BDC. Shaye bugun jini ta fara bayan bugun jini. Ya buɗe, shaye bawul da fistan motsa zuwa ga TDC, wuce shaye gas cikin yanayi. Sa'an nan, a cikin wannan jerin sake zagayowar an maimaita.