JPS5781144A - Piston for internal combustion engine - Google Patents
Piston for internal combustion engineInfo
- Publication number
- JPS5781144A JPS5781144A JP15796880A JP15796880A JPS5781144A JP S5781144 A JPS5781144 A JP S5781144A JP 15796880 A JP15796880 A JP 15796880A JP 15796880 A JP15796880 A JP 15796880A JP S5781144 A JPS5781144 A JP S5781144A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- notched
- axial line
- wall face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
- F02F3/022—Pistons having means for accommodating or controlling heat expansion the pistons having an oval circumference or non-cylindrical shaped skirts, e.g. oval
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
PURPOSE:To reduce knocking noise of the piston in such a way that in the outer periphery of a piston in an internal combustion engine, part on the anti-thrust side which contacts the wall face of a cylinder when it is in compression stroke at least is notched slantwise as it comes near to its axial line toward the upper part of the piston. CONSTITUTION:A piston (a) is conically formed from the skirt part (a2) of the lower part toward a ring land part (a1), and an exhaust port 2 and an air inlet port 3 are opened toward the inner wall face in a cylinder b. In the piston (a), part on its anti-thrust side S2 is notched slantwise as it comes near to its axial line l2 toward the upper part of the piston. This notched part (a2) is faced opposite to the exhaust port 2 at the time of top dead point, and formed over the length extent between its upper side and lower side. In consequence, the angle alpha to the axial line l2 of the cylinder for the piston becomes larger, and when it is transferred to expansion stroke, it clashes from the lowest part of the skirt part (a2) which is thin and less rigid to the cylinder wall face, and knocking noise is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15796880A JPS5781144A (en) | 1980-11-10 | 1980-11-10 | Piston for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15796880A JPS5781144A (en) | 1980-11-10 | 1980-11-10 | Piston for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5781144A true JPS5781144A (en) | 1982-05-21 |
Family
ID=15661371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15796880A Pending JPS5781144A (en) | 1980-11-10 | 1980-11-10 | Piston for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5781144A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0153594A2 (en) * | 1984-02-29 | 1985-09-04 | Goetze Ag | Piston for internal combustion engines |
| DE3713242C1 (en) * | 1987-04-18 | 1988-10-20 | Mahle Gmbh | Light metal plunger for internal combustion engines |
-
1980
- 1980-11-10 JP JP15796880A patent/JPS5781144A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0153594A2 (en) * | 1984-02-29 | 1985-09-04 | Goetze Ag | Piston for internal combustion engines |
| EP0153594A3 (en) * | 1984-02-29 | 1985-11-21 | Goetze Ag | Piston for internal combustion engines |
| DE3713242C1 (en) * | 1987-04-18 | 1988-10-20 | Mahle Gmbh | Light metal plunger for internal combustion engines |
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