JPH02107719U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the partial cylinder head along the line - in FIG. 2; FIG.
Longitudinal cross-sectional view along the line; Figure 3 is the − of Figure 1.
Partial cylinder head cross section along line; 4th
The figure is a sectional view of the cylinder head corresponding to FIG. 3 when the respective axes are aligned when viewed from above the cylinder head; FIG. 5 is a cross-sectional view of the cylinder head of a conventional cooling structure; FIG. A sectional view of a cooling water passage along a line. 2...Intake port, 3...Exhaust port, 1a...Cylinder head partition, 1b...Cylinder head lower end surface,
9...First cooling water passage, 10...Second cooling water passage, 13, 14...Water hole.

Claims (1)

[Claim for Utility Model Registration] Cooling water that directs cooling water from a water hole in a cylinder block into a cylinder head partition that separates an intake port and an exhaust port near the valve seats of intake and exhaust valves that are arranged adjacent to each other. In the cylinder head having a passage, the cooling water passage is constituted by a first cooling water passage and a second cooling water passage, which have different height positions from the lower end surface of the cylinder head within the cylinder head partition, and When viewed from a direction perpendicular to the lower end surface of the cylinder head, the respective axes of the cooling water passages are formed so as to intersect with each other within the cylinder head partition wall, and furthermore, different cooling water passages are provided on the left and right sides of the cylinder head with the intake and exhaust ports as boundaries. A cooling structure for a cylinder head, characterized in that an inlet and an outlet of the passage are arranged, and the inlets of the cooling water passage are respectively connected to correspond to different water holes in the cylinder block.