JPS6114744U

JPS6114744U - internal combustion engine cylinder head

Info

Publication number: JPS6114744U
Application number: JP9820284U
Authority: JP
Inventors: 行紀大石
Original assignee: 日産ディーゼル工業株式会社
Priority date: 1984-06-29
Filing date: 1984-06-29
Publication date: 1986-01-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

同分解斜視図、第３図は吸気の整流部材の変形例を委す
斜視図、第４図は同装着状態の断面図、第５図は同断熱
構造とした実施例を示す断面図、第６図は従来や内燃機
関のシリンダヘッドを示す断−ト、８は上側体、９は下
側体、１０，・１０′は上− 面、１１は吸気ポート
、１２は排気ポート、１３．１３’は吸気ポート用凹部
、１４，１４’は排気ポート用凹部、１５．１５’は吸
気の整流部材、１６．１６’は排気の整流部材、２８は
ス９ール生成用凹部、２９はセラミック溶射層、３０は
ヘッドプレートである。3 is a perspective view showing a modified example of the intake air rectifying member, FIG. 4 is a sectional view of the same installed state, and FIG. 5 is a sectional view showing an embodiment with the same heat insulation structure. Figure 6 is a cross section showing a cylinder head of a conventional internal combustion engine, 8 is an upper body, 9 is a lower body, 10, 10' are upper surfaces, 11 is an intake port, 12 is an exhaust port, 13.13 ' is a concave part for intake port, 14, 14' is a concave part for exhaust port, 15.15' is an intake rectifying member, 16.16' is an exhaust rectifying member, 28 is a recess for generating air bubbles, 29 is ceramic The thermal spray layer 30 is a head plate.

Claims

[Scope of utility model registration request]

(1) A head main body is constituted by a cast upper body and a lower body of a flat plate connected thereto, and the upper body has a recess that forms an intake port and an exhaust port by the upper surface of the lower body. What is claimed is: 1. A cylinder head for an internal combustion engine, characterized in that a rectifying member forming a streamlined shape of intake or exhaust is attached to a portion of the upper surface of the lower body corresponding to the intake port recess and the exhaust port recess.

(2) When the cylinder head is for a heat-insulated engine, a ceramic sprayed layer is formed on the surface of the exhaust port recess and the portion corresponding to the exhaust port recess on the upper surface of the lower body, and the valve plate member of the lower body is coated with a ceramic sprayed layer. 2. A cylinder head for an internal combustion engine according to claim 1, wherein the exhaust gas rectifying member is made of a ceramic material. {3} The syringe head for an internal combustion engine according to claim 1, wherein the intake air rectifying member is provided with a recessed portion for producing Swannyl.