Two-stroke internal combustion engine i.e. petrol engine, has oil scraper that is utilized for scrapping of oil, where oil scraper is arranged in circular groove that is provided on piston skirt, and is placed below ring seal

摘要

The engine has a cylinder (11), and a piston (12) that slides in the cylinder according to a back and forth motion. The piston includes a head (17) at an upper end, where the head is prolonged vertically downwards by a piston skirt (21). The piston comprises two segments at its lower end. A ring seal (24) is arranged a circular groove that is dug on the piston skirt. An oil scraper (26) utilized for scrapping of oil is arranged in another circular groove that is provided on the piston skirt, where the oil scrapper is placed below ring seal.