Effects of narrow-width, low-tangential-tension, 3-piece oil ring on oil consumption
✍ Scribed by Hideki Yoshida; Hiroyuki Kobayashi; Takeshi Yamada; Masaaki Takiguchi; Kazuhiro Kuwada
- Book ID
- 104342899
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 803 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0389-4304
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✦ Synopsis
The subject of reducing the tangential tension (from 30 to 10 N) of 3-piece oil rings for gasoline engines was analyzed through measurements of oil consumption, friction, ring motion, and oil "lm thickness (LIF Method). Although oil consumption increases under high engine speed operation with tension reduced oil rings, setting the ring width, h , to 2.0 mm decreased the oil consumption signi"cantly. Analysis of this phenomenon reveals sealing ability on the side surfaces at oil ring and piston motion during the intake stroke to be the key issues. Further reduction in the tangential tension of oil rings is possible through this improvement.