JPH01118109U - - Google Patents
Info
- Publication number
- JPH01118109U JPH01118109U JP1408788U JP1408788U JPH01118109U JP H01118109 U JPH01118109 U JP H01118109U JP 1408788 U JP1408788 U JP 1408788U JP 1408788 U JP1408788 U JP 1408788U JP H01118109 U JPH01118109 U JP H01118109U
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- intake
- seating surface
- cylinder head
- port
- 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
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図はバルブシートの部分側面図であり、第
１図ａは吸気用バルブシートの部分断面図、第１
図ｂは排気用バルブシートの部分断面図、第２図
はシリンダヘツドの側面側面図である。
２…シリンダヘツド、３ａ…吸気ポート、４ａ
…排気ポート、７，８…バルブシート、７ａ，８
ａ…着座面、１２…バルブフエイス、１３…方向
制御部。
FIG. 1 is a partial side view of the valve seat, FIG. 1a is a partial sectional view of the intake valve seat, and FIG.
Figure b is a partial sectional view of the exhaust valve seat, and Figure 2 is a side view of the cylinder head. 2...Cylinder head, 3a...Intake port, 4a
...Exhaust port, 7, 8...Valve seat, 7a, 8
a... Seating surface, 12... Valve face, 13... Direction control section.
Claims (1)
路とを連通するポートに配設され、着座面を有す
るバルブシートにおいて、上記着座面の近傍に、
該吸排気ポートの少なくとも一方を逆流する流体
に対してのみ流下抵抗を高める方向制御部が設け
られていることを特徴とするエンジンのバルブシ
ート。 In a valve seat that is disposed in a port that communicates a combustion chamber formed in a cylinder head with an intake and exhaust passage and has a seating surface, near the seating surface,
1. A valve seat for an engine, characterized in that a directional control section is provided that increases flow resistance only to fluid flowing backward through at least one of the intake and exhaust ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1408788U JPH01118109U (en) | 1988-02-03 | 1988-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1408788U JPH01118109U (en) | 1988-02-03 | 1988-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01118109U true JPH01118109U (en) | 1989-08-09 |
Family
ID=31224968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1408788U Pending JPH01118109U (en) | 1988-02-03 | 1988-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01118109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2916798A3 (en) * | 2007-06-01 | 2008-12-05 | Renault Sas | Anti-reflux valve seat for intake duct of cylinder head of average cylinder capacity diesel engine, has lateral surface with impact surfaces for chamfers, where impact surfaces are oriented in same manner as that of lower surface |
| WO2013093541A1 (en) * | 2011-12-22 | 2013-06-27 | Renault Trucks | Cylinder head for engine |
-
1988
- 1988-02-03 JP JP1408788U patent/JPH01118109U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2916798A3 (en) * | 2007-06-01 | 2008-12-05 | Renault Sas | Anti-reflux valve seat for intake duct of cylinder head of average cylinder capacity diesel engine, has lateral surface with impact surfaces for chamfers, where impact surfaces are oriented in same manner as that of lower surface |
| WO2013093541A1 (en) * | 2011-12-22 | 2013-06-27 | Renault Trucks | Cylinder head for engine |