CN2544104Y - 高性能气门导杆油封 - Google Patents

高性能气门导杆油封 Download PDF

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Publication number
CN2544104Y
CN2544104Y CN 02267644 CN02267644U CN2544104Y CN 2544104 Y CN2544104 Y CN 2544104Y CN 02267644 CN02267644 CN 02267644 CN 02267644 U CN02267644 U CN 02267644U CN 2544104 Y CN2544104 Y CN 2544104Y
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China
Prior art keywords
rubber
lip
utility
oil seal
model
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Expired - Fee Related
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CN 02267644
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English (en)
Inventor
高明
唐跃
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JIPO SEALING INDUSTRIAL Co Ltd QINGDAO CITY
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JIPO SEALING INDUSTRIAL Co Ltd QINGDAO CITY
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Priority to CN 02267644 priority Critical patent/CN2544104Y/zh
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Publication of CN2544104Y publication Critical patent/CN2544104Y/zh
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Abstract

本实用新型涉及了一种气门导杆油封,它包括带有唇口的丙烯酸酯橡胶或硅橡胶密封唇,橡胶密封唇的唇口表面上粘贴填充聚四氟乙烯的耐磨片;这种油封由于其唇口上粘合了填充聚四氟乙烯层,又保留了基体橡胶的弹性,大大提高了其耐磨、耐高温、耐腐蚀性能,延长了使用寿命。

Description

性能气门导杆油封
                                技术领域
本实用新型属于内燃机的密封装置,尤其是一种气门导杆用的油封。
                                背景技术
传统的气门导杆油封,参见图1,其包括骨架1和橡胶密封体3,密封体3的外周沟槽内套有螺旋弹簧圈2,橡胶材料密封体大多是丁腈橡胶丙烯酸酯橡胶或氟橡胶材料制作而成。这种材料弹性变形好,加工容易,但是由于这些材料耐磨、耐高温、耐腐蚀的性能比较差,故与导杆接触磨擦的唇口容易损坏,缩短了油封的使用寿命。
                                发明内容
本实用新型的目的是提供一种耐磨、耐高温、耐腐蚀性能更好、使用寿命长的气门导杆用油封。
本实用新型是这样实现的,它包括骨架和橡胶密封唇,密封唇外周的沟槽内套有螺旋弹簧圈,在橡胶密封唇的唇口表面设置增强层;增强层为采用聚四氟乙烯的耐磨片。
采用本实用新型,由于填充聚四氟乙烯具有非常高耐磨、耐高温、耐腐蚀性能,它是经化学活化处理后,直接硫化粘合在橡胶密封唇的唇口表面成为增强层的,这样大大提高了密封唇的耐磨、耐高温、耐腐蚀性能,从而延长了油封的使用寿命。
                                附图说明
图1为现有技术的结构示意图;
图2为本实用新型的结构示意图。
                              具体实施方式
参见图2,本实用新型包括骨架4和橡胶密封唇6,密封唇外周的沟槽内套有螺旋弹簧圈5,在橡胶密封唇的唇口表面设置材料为聚四氟乙烯的耐磨片7。本实用新型是将填充聚四氟乙烯经化学活化处理后,直接硫化粘合在橡胶唇口表面。使用时,唇口的填充聚四氟乙烯层与导杆直接接触并产生相对运动和磨擦,由于它将填充聚四氟乙烯的高耐磨性和基体橡胶的弹性熔为一体,既保留了橡胶的弹性,又达到了耐高温、耐磨擦、耐腐蚀,因此使用寿命较长。

Claims (2)

1.一种高性能气门导杆油封,它包括骨架和橡胶密封唇,其特征在于在橡胶密封唇的唇口表面设置增强层。
2.根据权利要求1所述的高性能气门导杆油封,其特征在于增强层为采用填充聚四氟乙烯的耐磨片。
CN 02267644 2002-06-11 2002-06-11 高性能气门导杆油封 Expired - Fee Related CN2544104Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02267644 CN2544104Y (zh) 2002-06-11 2002-06-11 高性能气门导杆油封

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Application Number Priority Date Filing Date Title
CN 02267644 CN2544104Y (zh) 2002-06-11 2002-06-11 高性能气门导杆油封

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CN2544104Y true CN2544104Y (zh) 2003-04-09

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CN (1) CN2544104Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1920266A (zh) * 2005-08-01 2007-02-28 科尔科斯弗罗伊登伯格工业及科索有限公司 内燃机的阀衬垫

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1920266A (zh) * 2005-08-01 2007-02-28 科尔科斯弗罗伊登伯格工业及科索有限公司 内燃机的阀衬垫

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