JPH046508U - - Google Patents

Description

[Brief explanation of the drawing]

1 and 2 show a first embodiment of this invention, with FIG. 1 being a schematic side view of the oil passage structure, and FIG. 2 being a schematic front view of the oil passage structure. FIG. 3 shows a second embodiment of this invention, and is a schematic side view of the oil passage structure. Figures 4 to 6 show conventional oil passage structures, Figure 4 is a schematic side view of the oil passage structure, Figure 5 is a schematic front view of the oil passage structure, and Figure 6 is equipped with a hydraulic lash adjuster. FIG. 2 is a schematic side view of an oil passage structure of an internal combustion engine. In the figure, 2... Internal combustion engine, 4... Cylinder block, 6... Cylinder head, 8... Camshaft, 22... Block side oil passage, 24... Oil rising passage, 28... First oil introduction passage. ,3
2...second oil introduction passage, 34...main oil passage, and 42...oil distribution passage.

Claims (1)

[Scope of utility model registration request] An oil entry passage formed in the cylinder head to introduce lubricating oil from the cylinder block side of the internal combustion engine, an oil introduction passage communicating with the oil entry passage, and an oil introduction passage oriented in the axial direction of the camshaft held in the cylinder head. In the oil passage structure of the cylinder head, the cylinder head has a main oil passage that communicates with the oil introduction passage, and a plurality of oil distribution passages that guide lubricating oil from the main oil passage to each part of the camshaft. An oil passage structure for a cylinder head, characterized in that a part of the main oil passage with which the introduction passage communicates is arranged at a higher position than other parts of the main oil passage.