CN202926919U - 离合助力分泵 - Google Patents

离合助力分泵 Download PDF

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Publication number
CN202926919U
CN202926919U CN 201220632693 CN201220632693U CN202926919U CN 202926919 U CN202926919 U CN 202926919U CN 201220632693 CN201220632693 CN 201220632693 CN 201220632693 U CN201220632693 U CN 201220632693U CN 202926919 U CN202926919 U CN 202926919U
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China
Prior art keywords
servo
cylinder
clutch
power
air chamber
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Expired - Fee Related
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CN 201220632693
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Inventor
丁翠华
董衍海
刘壮贤
刘燕
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RIZHAO BEIYE BRAKE PUMP LLC
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RIZHAO BEIYE BRAKE PUMP LLC
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Abstract

本实用新型公开了一种离合助力分泵,包括助力缸和与所述助力缸安装在一起的助力伺服气室,所述助力缸内腔设有助力活塞,所述助力活塞上套装有设在所述助力缸和所述助力伺服气室之间的密封装置,所述密封装置为骨架气封;所述密封装置为骨架气封,增强了密封效果,避免了离合油中混入气体导致的离合失效。

Description

离合助力分泵
技术领域
本实用新型涉及一种离合助力分泵。 
背景技术
离合助力器是串联在汽车液压离合管路中,离合时起助力作用的部件。目前存在的离合助力器包括进油接头、助力缸、助力缸活塞、伺服助力活塞、助力伺服气室、离合助力输出推杆、密封皮圈、进气阀、进气接头、控制阀活塞、控制阀。     
由于助力缸直接与助力伺服气室相连接,助力缸左端采用副皮圈密封,当汽车开始离合时、助力伺服气室处于低压状态时,副皮圈的唇口部位不能充分舒展,助力伺服气室中的空气在低压力作用下易渗入助力缸中,当离合油中混入足量气体时会导致离合失效。
发明内容
本实用新型所要解决的技术问题是提供一种使用寿命长,密封效果好的离合助力分泵。 
为解决上述技术问题,本实用新型的技术方案是:离合助力分泵,包括助力缸和与所述助力缸安装在一起的助力伺服气室,所述助力缸内腔设有助力活塞,所述助力活塞上套装有设在所述助力缸和所述助力伺服气室之间的密封装置,其特征在于:所述密封装置为骨架气封。 
作为优选的技术方案,所述骨架气封和所述助力活塞以及所述骨架气封和所述助力伺服气室之间过盈配合,所述过盈配合的过盈量大于等于0.3mm小于等于0.5mm。 
由于采用了上述技术方案,离合助力分泵,包括助力缸和与所述助力缸安装在一起的助力伺服气室,所述助力缸内腔设有助力活塞,所述助力活塞上套装有设在所述助力缸和所述助力伺服气室之间的密封装置,所述密封装置为骨架气封;所述密封装置为骨架气封,增强了密封效果,避免了离合油中混入气体导致的离合失效。 
附图说明  
图1是本实用新型实施例的结构示意图;
图中:1-助力缸;2-助力伺服气室;3-助力活塞;4-骨架气封。
具体实施方式
如附图所示,离合助力分泵,包括助力缸1和与所述助力缸1安装在一起的助力伺服气室2,所述助力缸1内腔设有助力活塞3,所述助力活塞3上套装有设在所述助力缸1和所述助力伺服气室2之间的密封装置,所述密封装置为骨架气封4。 
所述骨架气封和所述助力活塞以及所述骨架气封和所述助力伺服气室之间过盈配合,所述过盈配合的过盈量为0.4mm,所述过盈量也可以设为大于等于0.3mm小于等于0.5mm的其他数值。 
所述骨架气封和所述助力活塞以及所述骨架气封和所述助力伺服气室之间过盈配合,当汽车开始离合时,虽然助力伺服气室处于低压状态,但是骨架气封仍能保持充分密封,助力伺服气室中的空气在低压力作用下不会渗入助力缸中,避免了助力伺服气室中空气渗入助力缸中致使离合油中混入过量气体,所导致的离合失效。 
以上显示和描述了本实用新型的基本原理、主要特征及本实用新型的优点。本行业的技术人员应该了解,本实用新型不受上述实施例的限制,上述实施例和说明书中描述的只是说明本实用新型的原理,在不脱离本实用新型精神和范围的前提下,本实用新型还会有各种变化和改进,这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。 

Claims (2)

1.离合助力分泵,包括助力缸和与所述助力缸安装在一起的助力伺服气室,所述助力缸内腔设有助力活塞,所述助力活塞上套装有设在所述助力缸和所述助力伺服气室之间的密封装置,其特征在于:所述密封装置为骨架气封。
2.如权利要求1所述的离合助力分泵,其特征在于:所述骨架气封和所述助力活塞以及所述骨架气封和所述助力伺服气室之间过盈配合,所述过盈配合的过盈量大于等于0.3mm小于等于0.5mm。
CN 201220632693 2012-11-27 2012-11-27 离合助力分泵 Expired - Fee Related CN202926919U (zh)

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CN 201220632693 CN202926919U (zh) 2012-11-27 2012-11-27 离合助力分泵

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179829A (zh) * 2014-07-19 2014-12-03 芜湖恒坤汽车部件有限公司 一种摆动式离合器分泵的进油装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179829A (zh) * 2014-07-19 2014-12-03 芜湖恒坤汽车部件有限公司 一种摆动式离合器分泵的进油装置

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Granted publication date: 20130508

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