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Valve rocker chamber with composite lubrication oil path, and cylinder head cover

A valve rocker arm, cylinder head cover technology, applied in the direction of cylinder head, valve accessories lubrication, cylinder, etc., can solve the problem of insufficient lubrication of the friction pair of the rocker arm, avoid failure to work, reduce parts wear, and ensure normal operation. Effect

Pending Publication Date: 2019-04-05
浙江康思特动力机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of insufficient lubrication of the friction pair of the rocker arm of the small and medium-sized general-purpose gasoline engine in the prior art, the present invention provides a valve rocker chamber adopting a compound lubrication method to ensure that the kinematic pair of the rocker arm can be sufficiently lubricated, thereby reducing wear and tear. Avoid friction pair jamming in the rocker chamber and ensure the normal operation of the engine

Method used

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  • Valve rocker chamber with composite lubrication oil path, and cylinder head cover
  • Valve rocker chamber with composite lubrication oil path, and cylinder head cover

Examples

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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment provides a valve rocker arm chamber 5 with a composite lubricating oil circuit. The valve rocker arm chamber 5 is formed by closing the cylinder head 1 and the cylinder head cover 10, and includes an intake rocker arm assembly 4. Exhaust lubrication components. The size of the cylinder head 1 is adapted to the size of the cylinder head cover 10 . by figure 1 The direction shown in the figure shall prevail. There is a cylinder head oil mist channel 13 and a cylinder head lubricating oil channel 12 on the left and right sides of the cylinder head 1 respectively. The cylinder head oil mist channel 13 and the cylinder head lubricating oil channel 12 are both vertical. It is arranged and connected up and down so that the valve rocker chamber 5 communicates with the oil passage on the cylinder block and the crankcase. The lower opening of the cylinder head oil mist passage 13 communicates with the oil mist passage on the crankcase...

Embodiment 2

[0036]The difference between this embodiment and Embodiment 1 is that there is only one cylinder head lubricating oil passage 12 in this embodiment, but there are two oil mist lubricating oil passages in the cylinder head 1, both of which are located in the intake rocker arm assembly. 4 are located on one side, and one front and one back are set.

[0037] The oil mist lubrication process and the forced lubrication process in this embodiment are basically the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0039] The difference between this embodiment and Embodiment 1 is that in this embodiment, there are two lubricating oil passages in the cylinder head cover 10, but there is only one oil mist lubricating oil passage in the cylinder head 1, and one of the cylinder head lubricating oil passages 12 is arranged on the side where the exhaust rocker arm assembly 11 is located, and the other lubricating oil channel of the cylinder head cover 10 and the oil mist lubricating oil channel of the cylinder head 1 are arranged on the side where the intake rocker arm is located. Moreover, one cylinder head cover 10 lubricating oil passage is arranged in the cylinder rocker chamber, while the other cylinder head lubricating oil passage 12 is arranged in the cylinder head 1 on or near the side wall of the cylinder head cover 10 . In order to correspond to another cylinder head lubricating oil passage 12, the cylinder head cover lubricating oil passage a8 can be added one above the position of ...

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Abstract

The invention discloses a valve rocker chamber with a composite lubrication oil path, and belongs to the field of small engines. The valve rocker chamber with the composite lubrication oil path comprises a valve rocker chamber body formed by covering a cylinder head and a cylinder head cover; the cylinder head is provided with a cylinder head oil mist channel communicating with the valve rocker chamber body and a cylinder head lubrication oil channel; the top of the cylinder head cover is provided with at least one forced lubrication oil outlet; and the top and side wall of the cylinder head cover are provided with lubrication oil channels communicating with the cylinder head lubrication oil channel on the cylinder head. Two lubrication modes of oil mist lubrication and forced lubricationare combined, so that movement pairs inside the valve rocker chamber are lubricated sufficiently, the valve rocker chamber is cooled, and thus reliability, stability and durability of the movement pairs and a heat engine part are improved.

Description

technical field [0001] The invention belongs to the field of engine lubricating systems, in particular to a valve rocker chamber with a composite lubricating oil passage and a cylinder head cover with a forced lubricating oil passage. Background technique [0002] The cylinder head of the existing small general-purpose gasoline engine usually only uses the oil mist lubrication method to realize the lubrication of the kinematic pair of the rocker chamber. The oil mist lubrication method has a simple structure and is easy to process. Due to internal pressure, crankshaft, connecting rod, camshaft and other friction pairs that agitate the engine oil and other factors, the kinematic pair often has poor lubrication, resulting in friction pair jamming in the rocker chamber, rupture of the valve oil seal lip buckle, abnormal wear of the valve stem, etc. Appear. [0003] Moreover, it is difficult to cool and dissipate the engine body (mainly the cylinder head) only by oil mist lubri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/24F01M9/10
CPCF01M9/10F02F1/24
Inventor 殷贵良徐钢濮光明方天泽沈乡情平鸿光
Owner 浙江康思特动力机械有限公司
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