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Rotary oil seal with oil-sealing mouth

An oil seal and oil sealing technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of loss of sealing function, reduction of sealing effect, deformation of main seal oil, etc., to increase sealing measures, improve sealing effect, extend The effect of service life

Inactive Publication Date: 2007-11-14
张绍翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, the oil pressure will deform the main seal oil, reduce the sealing effect, and even lose the sealing function

Method used

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  • Rotary oil seal with oil-sealing mouth
  • Rotary oil seal with oil-sealing mouth

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Experimental program
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Embodiment Construction

[0011] Referring to Fig. 3 and 4, there is a main seal oil surface 2 and a dust seal lip 1 on its inner ring, and its characteristic is that there is another oil seal lip 3 on the other side of the main seal oil surface. The first function of the oil sealing lip is to bear the oil pressure, and the second function is to implement the first seal.

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Abstract

The present invention provides a closure oil rotary lip seal, the technical problems to be solved: the current seal on the inner ring closure has a main oil-dust lip and closed, respectively for oil seal and dust seal. So the surface of oil seal wokes under hydraulic pressure. Over time, the main oil seal will be deformed, reduce sealing effect, or even lose their sealing function. The point of the invention is : on ther side of the main oil-seal there is a oil seal lip. The positive effect of this invention is: due to adding oil seal lip, reduce the main compression pressure of the main oil seal, extended theservice life of the mian oil seal, and add a sealed measures to enhance the sealing effect.

Description

technical field [0001] The invention relates to a sealing device installed on the end face of a mechanical rotating shaft to prevent lubricating oil from leaking. Background technique [0002] Said oil seal of the present invention is widely used in the engine of automobile, and it is installed on the end face of mechanical rotating shaft, prevents the lubricating oil with pressure from leaking outwards. The current oil seal has a main seal oil surface 2 and a dust seal lip 1 on its inner ring, which are used to seal oil and dust respectively (see Figure 1). Therefore, the oil surface of the main seal works under oil pressure. Over time, the oil pressure will deform the main seal oil, reduce the sealing effect, and even lose the sealing function. Contents of the invention [0003] The object of the present invention is to provide a rotary oil seal with long service life and good sealing effect with an oil sealing lip. [0004] The purpose of the present invention is ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32F16J15/3232
Inventor 张绍翔张绍忠
Owner 张绍翔
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