Abstract
Engine oil consumption causes particulate matter, poisoning of catalysts, abnormal combustion like pre-ignition in a gasoline engine, and an increase in customer's running cost. Oil consumption, therefore, must be reduced. It is well known that pressure at a piston second land sometimes becomes larger than the cylinder pressure in the latter half of the expansion stroke. Larger pressure at the second land causes an increase in engine oil consumption. For reducing the second land pressure, increasing volume of a piston second land is one of design schemes. Pressure at a piston second land is calculated in piston design stage. In the calculation, pressure at a piston third land is assumed as same as pressure at the crankcase. This study aimed the effect of volume of the third land of a piston on engine oil consumption. The third and the second lands pressure were measured using an optical fiber type pressure sensor. It was found that the third land pressure showed a quite different trend from the crankcase pressure. It was also found that the pressure balance between the second land and the third land affected engine oil consumption. It was suggested that the third land pressure should be considered in the calculation for lands pressure of a piston and further investigation on third land design for reducing engine oil consumption may be required.
| Original language | English |
|---|---|
| Title of host publication | ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014 |
| Publisher | Web Portal ASME (American Society of Mechanical Engineers) |
| Volume | 2 |
| ISBN (Print) | 9780791846179 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014 - Columbus Duration: 2014 Oct 19 → 2014 Oct 22 |
Other
| Other | ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014 |
|---|---|
| City | Columbus |
| Period | 14/10/19 → 14/10/22 |
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ASJC Scopus subject areas
- Fuel Technology
- Automotive Engineering
- Mechanical Engineering
Cite this
A study on the effect of pressure balance between the second and third land of a piston on engine oil consumption. / Ohno, Yohei; Kikuhara, Koji; Ito, Akemi; Inui, Masatsugu; Akamatsu, Hirotaka.
ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014. Vol. 2 Web Portal ASME (American Society of Mechanical Engineers), 2014.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A study on the effect of pressure balance between the second and third land of a piston on engine oil consumption
AU - Ohno, Yohei
AU - Kikuhara, Koji
AU - Ito, Akemi
AU - Inui, Masatsugu
AU - Akamatsu, Hirotaka
PY - 2014
Y1 - 2014
N2 - Engine oil consumption causes particulate matter, poisoning of catalysts, abnormal combustion like pre-ignition in a gasoline engine, and an increase in customer's running cost. Oil consumption, therefore, must be reduced. It is well known that pressure at a piston second land sometimes becomes larger than the cylinder pressure in the latter half of the expansion stroke. Larger pressure at the second land causes an increase in engine oil consumption. For reducing the second land pressure, increasing volume of a piston second land is one of design schemes. Pressure at a piston second land is calculated in piston design stage. In the calculation, pressure at a piston third land is assumed as same as pressure at the crankcase. This study aimed the effect of volume of the third land of a piston on engine oil consumption. The third and the second lands pressure were measured using an optical fiber type pressure sensor. It was found that the third land pressure showed a quite different trend from the crankcase pressure. It was also found that the pressure balance between the second land and the third land affected engine oil consumption. It was suggested that the third land pressure should be considered in the calculation for lands pressure of a piston and further investigation on third land design for reducing engine oil consumption may be required.
AB - Engine oil consumption causes particulate matter, poisoning of catalysts, abnormal combustion like pre-ignition in a gasoline engine, and an increase in customer's running cost. Oil consumption, therefore, must be reduced. It is well known that pressure at a piston second land sometimes becomes larger than the cylinder pressure in the latter half of the expansion stroke. Larger pressure at the second land causes an increase in engine oil consumption. For reducing the second land pressure, increasing volume of a piston second land is one of design schemes. Pressure at a piston second land is calculated in piston design stage. In the calculation, pressure at a piston third land is assumed as same as pressure at the crankcase. This study aimed the effect of volume of the third land of a piston on engine oil consumption. The third and the second lands pressure were measured using an optical fiber type pressure sensor. It was found that the third land pressure showed a quite different trend from the crankcase pressure. It was also found that the pressure balance between the second land and the third land affected engine oil consumption. It was suggested that the third land pressure should be considered in the calculation for lands pressure of a piston and further investigation on third land design for reducing engine oil consumption may be required.
UR - http://www.scopus.com/inward/record.url?scp=84919346902&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84919346902&partnerID=8YFLogxK
U2 - 10.1115/ICEF2014-5631
DO - 10.1115/ICEF2014-5631
M3 - Conference contribution
AN - SCOPUS:84919346902
SN - 9780791846179
VL - 2
BT - ASME 2014 Internal Combustion Engine Division Fall Technical Conference, ICEF 2014
PB - Web Portal ASME (American Society of Mechanical Engineers)
ER -