JPH0482342U

JPH0482342U -

Info

Publication number: JPH0482342U
Application number: JP12683290U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-17

Description

[Brief explanation of the drawing]

第１図は本考案を適用したシリンダヘツドアセ
ンブリの一部省略平面図、第２図は第１図の矢線
−に沿う断面図、第３図は第１図の矢線−
に沿う断面図、第４図は第１図のカムシヤフト
ホルダの平面図、第５図は第４図の側面図、第６
図は第４図の端面図、第７図は第４図の矢線−
に沿う断面図、第８図は第２図のロツカシヤフ
トキヤツプの平面図、第９図は第８図の側面図、
第１０図は第８図の端面図、第１１図は第８図の
矢線−に沿う断面図、第１２図は可変バ
ルブタイミング機構の一例を示す組立斜視図、第
１３図は第１２図の矢線−に沿う断面図
、第１４図は従来の分割式シリンダヘツドのカム
シヤフトホルダの斜視図である。１……可変バルブタイミング機構、３０……シ
リンダヘツドアセンブリ、３１……シリンダヘツ
ド、３２……カムシヤフトホルダ、３２ａ，３２
ａ′……側壁、３２ｂ……クロスバー、３３……
カムキヤツプ、３４……ロツカシヤフトキヤツプ
、３８，３９……バルブ。 Fig. 1 is a partially omitted plan view of a cylinder head assembly to which the present invention is applied, Fig. 2 is a sectional view taken along the arrow line - in Fig. 1, and Fig. 3 is a cross-sectional view taken along the arrow line - in Fig. 1.
4 is a plan view of the camshaft holder shown in FIG. 1, FIG. 5 is a side view of the camshaft holder shown in FIG. 4, and FIG.
The figure is an end view of Fig. 4, and Fig. 7 is an arrow line in Fig. 4.
8 is a plan view of the rock shaft cap shown in FIG. 2, FIG. 9 is a side view of the shaft cap shown in FIG. 8,
10 is an end view of FIG. 8, FIG. 11 is a sectional view taken along the arrow line - in FIG. 8, FIG. 12 is an assembled perspective view showing an example of the variable valve timing mechanism, and FIG. FIG. 14 is a perspective view of a camshaft holder of a conventional split cylinder head. DESCRIPTION OF SYMBOLS 1... Variable valve timing mechanism, 30... Cylinder head assembly, 31... Cylinder head, 32... Camshaft holder, 32a, 32
a'...Side wall, 32b...Cross bar, 33...
Cam cap, 34...Rock shaft cap, 38, 39...Valve.

Claims

[Scope of utility model registration request]

The camshaft holder of the cylinder head has a structure in which the cylinder head is divided into a lower cylinder head and a camshaft holder that is placed and fixed on the lower cylinder head and pivotally supports each of the intake and exhaust camshafts. A cylinder head structure characterized in that the opposing camshaft journals on the intake and exhaust sides are connected to form a ladder frame structure.