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Cylinder head structure for a multi-cylinder internal combustion engine

A technology of cylinder head and internal combustion engine, applied in the direction of cylinder head, engine lubrication, cylinder, etc., can solve the problems of rigidity and strength, the opening area of ​​oil leakage holes, the difficulty of changing the position, etc.

Active Publication Date: 2007-03-14
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in the vicinity of the side wall of the cover, in addition to the above-mentioned oil leakage hole, there are provided in a sealed state the cover bolt flange part through which the cover bolt for connecting the cylinder head and the cylinder block is inserted, and the valve spring seat flange for receiving the valve spring seat. part, the secondary air passage for supplying secondary air to the exhaust passage, etc., so that the opening area of ​​the oil leakage hole is increased, and the location is very difficult

Method used

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  • Cylinder head structure for a multi-cylinder internal combustion engine
  • Cylinder head structure for a multi-cylinder internal combustion engine
  • Cylinder head structure for a multi-cylinder internal combustion engine

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Embodiment Construction

[0011] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 3 are cross-sectional views showing main parts of a cylinder head 10 according to an embodiment of the present invention. The internal combustion engine to which this cylinder head 10 is applied is a vertical multi-cylinder internal combustion engine mounted on a vehicle in a posture where the cylinder row direction is arranged along the front and rear direction of the vehicle (arrow Fr direction in FIG. A V-shaped multi-cylinder internal combustion engine inclined at an angle has a cylinder head 10 on each side body. In addition, this internal combustion engine is a six-cylinder internal combustion engine with three cylinders #1, #3, #5 (or #2, #4, #6) on each side body, and the inner side of the side body (to the right side of Figure 1) is the The air valve side is the exhaust valve side on the outside of the side body (on the left side in F...

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Abstract

The invention relates to a cylinder head of a multi-cylinder internal combustion engine. The cylinder is a vertical V-shaped multi-cylinder internal combustion engine. In the cylinder head (10) of the cylinder head (10), a plurality of cylinder heads are formed along the direction of the cylinder row near the cover side wall (14) on the outside of the side body. The oil leakage hole (24) of opening on the upper strata plate (16). Behind the oil leakage holes (24B, 24C), ribs (34) extending in the width direction of the cylinder head are erected on the upper layer plate (16).

Description

technical field [0001] The invention relates to a cylinder head of a vertical multi-cylinder internal combustion engine. technical background [0002] As is well known, in an internal combustion engine for an automobile, a plurality of bearing parts and sliding parts are lubricated by oil (lubricating oil), and an oil leak hole for letting the oil fall is opened and formed on the upper plate of the cylinder head. For example, as described in Patent Document 1, a plurality of oil leakage holes are formed alternately with the cylinder near the side wall of the cylinder head. [0003] Patent Document 1: (Japanese) Patent No. 2661319 [0004] In a vertical multi-cylinder internal combustion engine in which the cylinder banks are mounted in the engine room of the vehicle with the cylinder banks facing the front and rear directions of the vehicle, a large amount of oil on the upper plate rapidly rushes toward the rear of the engine during sudden acceleration, etc. The oil leakag...

Claims

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Application Information

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IPC IPC(8): F02F1/24F01M11/06
CPCF01M11/02F01M11/064F02F1/24
Inventor 祢津广直野村绅
Owner NISSAN MOTOR CO LTD