Yogawa mpweya limagwirira. Nchifukwa Chiyani Kumafunikira?

yogawa mpweya limagwirira - mmodzi wa mbali yofunika kwambiri injini, amene ntchito olondola a ntchito umadalira mwachindunji. Amuchita kwa yake nadzaza yamphamvu ya osakaniza kuyaka kapena mpweya (mu injector ndi dizilo injini), ndi lililonse utsi mpweya. The zikuchokera chikuphatikizapo pagalimoto nthawi camshaft, zikhonza kukhala lamba, unyolo kapena magiya wa camshaft ndi limagwirira valavu. Mu thupi yamasika mapanelo ndi mavavu ndi rocker manja. inawo, nayenso chili ndi chitsulo chogwira matayala kuti phewa munthu chifukwa cha kusintha wononga, ndipo chachiwiri - pa vavu tsinde.

The camshaft ndi olamulira limene machined eccentric (kamera), monga valavu nthawi kumathandiza kupeza ngodya zabwino. Gawo nthawi - ichi ndi mphindi ya kutsegula ndi kutseka vavu. Izi zimachitika pa nthawi imene yamphamvu ndi mu chapamwamba kapena kuchepera mfundo akufa. Yomwe imatithandiza kumveketsa valavu (polowera kapena kubwereketsa) zikudalira kugunda amapezeka yamphamvu ina.

Mwachitsanzo, ngati pisitoni ndi pansi pakati akufa ndipo akuyamba psinjika sitiroko, mavavu onse atsekedwa, ngati izi sitiroko utsi, valavu utsi ndi lotseguka. M'pake kuganiza kuti wotchi mkombero wa anakhomedwa ntchito mavavu onse Anatseka, ndi kutsegula zakudya polowera. yogawa mpweya limagwirira mwina camshafts imodzi kapena ziwiri. yogawa mpweya limagwirira OHC - uyu ndiye woyamba, wachiwiri amatchedwa DOHC. Kakonzedwe kotero kokha ntchito injini anthu omwe aliyense yamphamvu ndi mavavu 4 kapena kuposa, monga 5 Audi.

Choncho, mafuta yogawa limagwirira DOHC injini amalola kuti ntchito kwambiri ndi kupangitsa zachilengedwe wochezeka ndi ndalama. Aliyense camshaft lakonzedwa kutsegula vavu gulu, kapena kudya kapena utsi.

Iwo anali pambuyo pa mpweya kufalitsidwa limagwirira SOHC. Lilinso mavavu 4 pa yamphamvu, koma camshaft chimodzi chokha ntchito zitsekozo. nthawi amenewa ndi ambiri 90s, koma posakhalitsa linasiyidwa chifukwa cha zokolola zake otsika poyerekeza ndi DOHC.

Kusonkhana adzatenge kolowera lolondola la camshaft wachibale crankshaft lapansi. Zimapezeka kutsatira kwa chizindikiro zida mukufuna kuphatikiza. Pamene ntchito lamba galimoto , choyamba anapereka pulleys ali limagwirizana chizindikiro, pambuyo zomwe atathana ndi olema nthawi lamba, limene anatambasula mavuto wodzigudubuza.

yogawa mpweya limagwirira sikutanthauza pafupifupi munthu chisamaliro, izo yafupika kwa kusintha yake ya chilolezo valavu. kuphwanya ake kumabweretsa kuchuluka avale mbali ndi salola injini kukhala ndi mphamvu zake zonse. Komanso, kukacheza mavavu, iwo amakhala mu malo theka-lotseguka, ndi kuwononga pistons, ndipo m'malo ngakhale wina akhoza ndalama mtengo ndithu.