Išẹ ti oruka epo ni lati pin pinpin kaakiri epo lubricating lori ogiri silinda nigbati piston ba gbe soke, eyiti o jẹ anfani si lubrication ti piston, oruka piston ati ogiri silinda; nigbati pisitini ba lọ silẹ, o yọkuro epo lubricating ti o pọju lori ogiri silinda lati ṣe idiwọ lubrication Breach sinu iyẹwu ijona lati sun. Gẹgẹbi ọna ti o yatọ, oruka epo ti pin si awọn oriṣi meji: oruka epo lasan ati oruka epo idapo.
Arinrin oruka epo
Ilana ti oruka epo lasan ni gbogbo igba ṣe ti irin simẹnti alloy. A groove ti wa ni ge ni arin ti awọn lode ipin dada, ati ọpọlọpọ awọn epo sisan ihò tabi slits ti wa ni machined ni isalẹ ti yara.
Apapo epo oruka
Iwọn epo ti o ni idapo jẹ ti awọn scrapers oke ati isalẹ ati orisun omi ti o ni agbedemeji. Awọn scrapers ti wa ni ṣe ti Chrome-palara irin. Ni ipinle ọfẹ, iwọn ila opin ti ita ti scraper ti a fi sori ẹrọ lori orisun omi ti o ni awọ jẹ diẹ ti o tobi ju iwọn ila opin silinda. Awọn aaye laarin awọn abe jẹ tun die-die o tobi ju awọn iwọn ti awọn yara oruka. Nigbati oruka epo idapo ati piston ti fi sori ẹrọ ni silinda, orisun omi ila ti wa ni fisinuirindigbindigbin ni mejeji axial ati awọn itọnisọna radial. Labẹ iṣẹ ti agbara orisun omi ti orisun omi ila, a le mu wiper naa pọ. Titẹ lodi si awọn silinda odi mu awọn epo scraping ipa. Ni akoko kanna, awọn meji scrapers tun ni wiwọ abut lori yara oruka. Iwọn epo idapo ko ni ifẹhinti, nitorina o dinku ipa fifa epo ti oruka piston. Iru oruka epo yii ni titẹ olubasọrọ ti o ga, ibaramu ti o dara si ogiri silinda, ọna ipadabọ epo nla, iwuwo kekere, ati ipa ipadanu epo ti o han gbangba. Nitorinaa, oruka epo ti o darapọ ni lilo pupọ ni awọn ẹrọ iyara giga. Ni gbogbogbo, ọkan si meji oruka epo ti wa ni ti fi sori ẹrọ lori piston. Nigbati a ba lo awọn oruka epo meji, isalẹ nigbagbogbo ni a gbe si isalẹ opin ti yeri piston.
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