JPH01111165U

JPH01111165U -

Info

Publication number: JPH01111165U
Application number: JP442488U
Authority: JP
Priority date: 1988-01-18
Filing date: 1988-01-18
Publication date: 1989-07-26

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図はシリン
ダヘツドの底面図、第２図は第１図の―視断
面図、第３図は第１図の―視断面図、第４図
は第１図の―視断面図である。１……シリンダヘツド、１ａ……シリンダヘツ
ドの長手一側面、１ｂ……シリンダヘツドの長手
他側面、４ａ，４ｂ……燃焼室、５……クランク
軸線、６……吸気弁、７……排気弁、８……吸気
ポート、９……排気ポート、９ａ……排気ポート
の燃焼室への開口部、１０……冷却水ジヤケツト
、１１……排気ガス還流通路、１１ａ……第１通
路、１１ｂ……第２通路、１２……肉盛部、１３
……凹所。 The drawings show an embodiment of the present invention; FIG. 1 is a bottom view of the cylinder head, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is a cross-sectional view of FIG. 1, and FIG. FIG. 2 is a cross-sectional view taken from FIG. 1; 1... Cylinder head, 1a... One longitudinal side of the cylinder head, 1b... The other longitudinal side of the cylinder head, 4a, 4b... Combustion chamber, 5... Crank axis, 6... Intake valve, 7... Exhaust Valve, 8... Intake port, 9... Exhaust port, 9a... Opening of exhaust port to combustion chamber, 10... Cooling water jacket, 11... Exhaust gas recirculation passage, 11a... First passage, 11b ... Second passage, 12 ... Overlay part, 13
...Concavity.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

内部に、一列状に配設した各燃焼室における吸
気弁から長手一側面への吸気ポートと、各燃焼室
における排気弁から長手他側面への排気ポートと
を備えると共に、一端が前記一つの排気ポートに
他端が長手一側面に各々開口する一つの排気ガス
還流通路を備えて成る内燃機関用シリンダヘツド
において、前記排気ガス還流通路を、前記燃焼室
列の最も外側の部位に配設すると共に、該排気ガ
ス還流通路を、長手一側面からこれと略直角の方
向に穿設した第１通路と、前記排気ポートの燃焼
室内への開口部から前記第１通路に連通するよう
に穿設した第２通路とで構成したことを特徴とす
る内燃機関用シリンダヘツド。 The interior includes an intake port from the intake valve in each combustion chamber arranged in a row to one longitudinal side, and an exhaust port from the exhaust valve in each combustion chamber to the other longitudinal side, and one end is connected to the one exhaust port. In a cylinder head for an internal combustion engine, the exhaust gas recirculation passage is provided with one exhaust gas recirculation passage whose other end opens on one longitudinal side of the port, and wherein the exhaust gas recirculation passage is disposed at the outermost part of the combustion chamber row, and , the exhaust gas recirculation passage has a first passage bored from one longitudinal side in a direction substantially perpendicular thereto, and is bored so as to communicate with the first passage from the opening of the exhaust port into the combustion chamber. A cylinder head for an internal combustion engine, comprising a second passage.