JPS63121863U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a metal cylinder head gasket according to a first embodiment of the present invention taken in longitudinal section and viewed from an angle (an enlarged perspective view of the cross section shown in FIG. 2); , FIG. 3 is a front view of the metal cylinder head gasket according to the first embodiment of the present invention, FIG. 3 is a perspective view of the portion shown in FIG. - Cross-sectional view, Figure 5,
Fig. 3 is a sectional view, Fig. 6 is a sectional view of Fig. 3.
7 is a cross-sectional view of FIG. 3, and FIG. 8 is a cross-sectional view of the metal cylinder head gasket according to the first embodiment of the present invention when the bead is pressed by the cylinder head and cylinder block. FIG. 9 is a vertical cross-sectional view showing the surface pressure generated in the portion of FIG. 4 in the case where the bead of the metal cylinder head gasket according to the first embodiment of the present invention is pressed by the cylinder head and cylinder block FIG. 10 is a vertical cross-sectional view showing the surface pressure generated in the portion shown in FIG. 5 when FIG. 11 is a longitudinal cross-sectional view showing the surface pressure generated in the portion shown in FIG. A vertical cross-sectional view showing the surface pressure generated in the part shown in Fig. 7 when pressed by a block, and Fig. 12 a shows the asymmetry of the metal cylinder head gasket according to the first embodiment of the present invention. FIG. 12b is a longitudinal sectional view for explaining the asymmetry of the metal cylinder head gasket according to the first embodiment of the present invention, and FIG. , FIG. 14 is a longitudinal sectional view of a metal cylinder head gasket according to a second embodiment of the present invention, FIG. 14 is a front view of a conventional metal cylinder head gasket, and FIG.
4, FIG. 16 is a cross-sectional view of FIG. 15, and FIG. 17 is a cross-sectional view of FIG. 15.
18 is a sectional view of FIG. 15, FIG. 19 is a sectional view of FIG. 15, and FIG. Fig. 21 is a vertical sectional view showing the surface pressure generated in the area shown in Fig. 16 when the bead of a conventional metal cylinder head gasket is pressed by the cylinder head and cylinder block. FIG. 22 is a longitudinal cross-sectional view showing the surface pressure generated in the portion shown in FIG. 17 when the cylinder head is pressed by the cylinder head and cylinder block. Figure 23 is a vertical cross-sectional view showing the surface pressure generated in the area shown in Figure 19, which occurs in the area shown in Figure 19 when the bead of a conventional metal cylinder head gasket is pressed by the cylinder head and cylinder block. It is a longitudinal cross-sectional view showing surface pressure. 1...Metal cylinder head gasket, 2...
... Cylinder bore hole, 3 ... Bead, 4 ... Cylinder head, 5 ... Cylinder block, 31 ... Surface on the side of the cylinder bore hole, 32 ... Surface on the opposite side to the cylinder bore hole, 33 ... Top part.

Claims (1)

[Scope of utility model registration request] It is a metal cylinder head gasket made of metal for sealing between the cylinder head and the cylinder block, and has a bead around the cylinder bore hole, and the bead has a triangular cross section. Moreover, the surface of the bead on the side of the cylinder bore hole has a steep angle, and the surface opposite to the cylinder bore hole has an asymmetrical cross-sectional shape with a gentle angle, and the cylinder bore hole and the cylinder bore hole are in contact with each other. A metal cylinder head gasket characterized in that there are two tops of the bead between the two.