JPS57146037A - Piston of internal combustion engine - Google Patents
Piston of internal combustion engineInfo
- Publication number
- JPS57146037A JPS57146037A JP3217681A JP3217681A JPS57146037A JP S57146037 A JPS57146037 A JP S57146037A JP 3217681 A JP3217681 A JP 3217681A JP 3217681 A JP3217681 A JP 3217681A JP S57146037 A JPS57146037 A JP S57146037A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- thickness
- exhaust side
- scanvenging
- temperature
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title abstract 4
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
- F01P3/202—Cooling circuits not specific to a single part of engine or machine for outboard marine engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To suppress the increase in the temperature of the exhaust side to lower the temperature of the full part of the piston head and to prevent the seizure of the piston by forming the piston head into a deviated thickness structure in which the exhaust side is relatively thinner than the other parts. CONSTITUTION:A two-cycle internal combustion engine A for an outboard motor is accommodated in a cowling B, for example, and the head part C1 of the piston C is heated in accordance with the combustion in a combustion chamber 7. With respect to the temperature in the piston head C1, the temperature at the exhaust side S1 facing an exhaust hole 1 is higher than that at the scanvenging side S2 facing a scanvenging hole 2. Therefore, the thickness of the piston head C1 is made into a deviated thickness and the thickness of the exhaust side S1 is made relatively thinner than the thickness of the scanvenging side S2. Accordingly, the propagation of heat from the exhaust side S1 where it is apt to become high temperatures to the scanvenging side S2 where it is apt to be cooled, is promoted, and the exhaust side S1 is indirectly cooled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3217681A JPS57146037A (en) | 1981-03-05 | 1981-03-05 | Piston of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3217681A JPS57146037A (en) | 1981-03-05 | 1981-03-05 | Piston of internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57146037A true JPS57146037A (en) | 1982-09-09 |
JPS6347901B2 JPS6347901B2 (en) | 1988-09-26 |
Family
ID=12351621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3217681A Granted JPS57146037A (en) | 1981-03-05 | 1981-03-05 | Piston of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57146037A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6010852U (en) * | 1983-07-04 | 1985-01-25 | スズキ株式会社 | Piston for 2-stroke engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5388403A (en) * | 1977-01-17 | 1978-08-03 | Toyota Motor Corp | Combustion chamber for internal cobbustion engine |
-
1981
- 1981-03-05 JP JP3217681A patent/JPS57146037A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5388403A (en) * | 1977-01-17 | 1978-08-03 | Toyota Motor Corp | Combustion chamber for internal cobbustion engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6010852U (en) * | 1983-07-04 | 1985-01-25 | スズキ株式会社 | Piston for 2-stroke engine |
JPH0118822Y2 (en) * | 1983-07-04 | 1989-06-01 |
Also Published As
Publication number | Publication date |
---|---|
JPS6347901B2 (en) | 1988-09-26 |
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