JPS57127173A - Protective method for valve seat part - Google Patents
Protective method for valve seat partInfo
- Publication number
- JPS57127173A JPS57127173A JP1323581A JP1323581A JPS57127173A JP S57127173 A JPS57127173 A JP S57127173A JP 1323581 A JP1323581 A JP 1323581A JP 1323581 A JP1323581 A JP 1323581A JP S57127173 A JPS57127173 A JP S57127173A
- Authority
- JP
- Japan
- Prior art keywords
- seat part
- valve seat
- valve
- exhaust valve
- casing
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000001681 protective effect Effects 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/02—Arrangements using fluid issuing from valve members or seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To prevent exhaust valve from blow-bye by a method wherein air passages, which are open to a valve seat part, are provided in the member of the valve casing of the exhaust valve equipped in diesel engine or the like. CONSTITUTION:The air passages 6 provided in the member of the valve casing 2 are open to the valve seat part 7. The compressed air 11 is fed to the passages 6 just before the closing of the exhaust valve by means of timing gear to be jetted against the valve seat part 7. The valve seat part 7 is prevented from the formation of dent owing to the jamming of combustion residue at the closing of the exhaust valve by blowing-off the residue such as carbon and the like adhering to or suspending in the space near the exhaust valve stem 1 and the valve seat part 7 of the exhaust valve casing 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323581A JPS57127173A (en) | 1981-01-30 | 1981-01-30 | Protective method for valve seat part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323581A JPS57127173A (en) | 1981-01-30 | 1981-01-30 | Protective method for valve seat part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57127173A true JPS57127173A (en) | 1982-08-07 |
Family
ID=11827523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1323581A Pending JPS57127173A (en) | 1981-01-30 | 1981-01-30 | Protective method for valve seat part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57127173A (en) |
-
1981
- 1981-01-30 JP JP1323581A patent/JPS57127173A/en active Pending
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