Cover member of internal combustion engine

A technology for cover parts and internal combustion engines, which is applied in the direction of engine components, lubricating parts, engine lubrication, etc., can solve the problems of increased weight of the chain cover, and achieve the effects of weight reduction, vibration suppression, and efficient lubrication

Active Publication Date: 2017-06-30
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the invention described in the above-mentioned Patent Document 1, the weight of the chain cover increases in accordance with the provision of the first rib and the second rib, and not only that, oil that flows down due to gravity may accumulate in the first rib and the second rib. The intersection of the second rib does not flow down smoothly

Method used

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  • Cover member of internal combustion engine
  • Cover member of internal combustion engine
  • Cover member of internal combustion engine

Examples

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Embodiment Construction

[0025] Below, according to Figure 1 to Figure 7 Embodiments of the present invention will be described. The front-back direction, left-right direction, and up-down direction in this manual are defined based on the driver sitting in the driver's seat.

[0026] Such as figure 1 as well as figure 2 As shown, the V-type multi-cylinder internal combustion engine E is mounted on the vehicle body so that the axis of the crankshaft 11 is along the front-rear direction, and the crankcase 12 is formed by integrating the crankcase upper half 12A and the crankcase lower half 12B In this configuration, the left cylinder 13 and the right cylinder 14 protrude obliquely upward in a V shape from the upper portion of the crankcase upper half 12A. The front surface of the crankcase 12 is covered with a detachable main chain cover 15 , and the front openings of the left and right cylinders 13 , 14 are covered with detachable sub chain covers 16 , 16 , respectively.

[0027] The crankshaft 1...

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Abstract

The present invention provides a cover member for an internal combustion engine capable of improving the rigidity of a lid member of an internal combustion engine to suppress vibration and capable of smoothly guiding the oil flowing along the cover member to a through hole for supporting the shaft. A cover member (15) mounted on a crankcase (12) of an internal combustion engine (E) has a through hole (15d) rotatably supported by a shaft (11); a bulging portion (15f) which is located above the through hole and bulges toward the inside of the cover member; and a plurality of groove portions (15g) extending radially from the through hole so as to connect the upper portion and the lower portion on the inner surface side of the bulging portion. Therefore, it is possible to suppress the vibration by improving the rigidity of the cover member by the groove portion (15g) of the bulging portion (15f) without providing the ribs with weight, the oil inside the crankcase (12) can concentrated around the through hole (15d) along the groove portion (15g) of the bulging portion (15f) by means of the gravity, so that the rotating shaft can be efficiently lubricated.

Description

technical field [0001] The invention relates to a cover part to be mounted on the casing of an internal combustion engine. Background technique [0002] According to the following patent document 1, it is known that a first rib and a second rib protrude from the inner surface of the chain cover of the internal combustion engine, the first rib extends in the direction of the cylinder axis, and the second rib connects the The side edge of the chain cover and the first rib are inclined downward in the direction of the cylinder axis toward the first rib. The rigidity of the chain cover is increased by the first rib and the second rib to suppress vibration, and it will be moved along by gravity. The oil flowing down from the first rib and the second rib is guided to the sprocket provided on the crankshaft to improve the lubricating performance. [0003] prior art literature [0004] Patent Document 1: Japanese Patent Laid-Open No. 2013-113166 [0005] However, in the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F7/00
CPCF02F7/0073F01M9/08F16H57/05F02F2007/0075F02F2007/0078F16N2210/33F01M11/0004F01M2011/0083F02F7/0039
Inventor 小岩洋二郎
Owner HONDA MOTOR CO LTD
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