CN204852880U - 一种柱塞机油泵限压阀 - Google Patents

一种柱塞机油泵限压阀 Download PDF

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Publication number
CN204852880U
CN204852880U CN201520509051.7U CN201520509051U CN204852880U CN 204852880 U CN204852880 U CN 204852880U CN 201520509051 U CN201520509051 U CN 201520509051U CN 204852880 U CN204852880 U CN 204852880U
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plunger
limiting valve
voltage limiting
oil pump
cone
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杜长征
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XINXIANG YUANHANG POWER ENVIRONMENTAL CONTROL MACHINERY CO Ltd
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XINXIANG YUANHANG POWER ENVIRONMENTAL CONTROL MACHINERY CO Ltd
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Abstract

本实用新型公开了一种柱塞机油泵限压阀,包括阀座、柱塞、限压阀壳和弹簧,所述柱塞的前端为锥体,所述限压阀壳前端台阶孔的孔口为与柱塞前端的锥体相配的锥形口。本实用新型具有限压效果好且可靠及结构简单工艺性好的优点。

Description

一种柱塞机油泵限压阀
技术领域:
本实用新型涉及一种阀,特别是一种柱塞机油泵限压阀。
背景技术:
发动机工作时,润滑系统将润滑油送到各摩擦面处进行润滑,对发动机的正常运转和寿命具有重要意义。然润滑油的压力应当适大,过高则发动机功耗增大,过低则不能保证其正常运转,降低发动机寿命。现有柱塞机油泵限压阀柱塞与限压阀壳的密封结构为柱塞端面与阀壳台阶孔的端面进行密封,这种平面密封结构,工艺要求高,制造成本高。
发明内容:
本实用新型的任务是提出一种限压效果好且工艺性好结构简单的一种柱塞机油泵限压阀。
本实用新型的技术方案是,一种柱塞机油泵限压阀,包括阀座、柱塞、限压阀壳和弹簧,其特征在于:所述柱塞的前端为锥体,所述限压阀壳前端台阶孔的孔口为与柱塞前端的锥体相配的锥形口。
本实用新型具与现有技术比较具有限压效果好且可靠及结构简单工艺性好的优点。
附图说明:
图1是本实用新型柱塞机油泵限压阀结构示意图。
具体实施方式:
为了克服现有平面密封存在的缺陷,本实用新型采用下述技术方案,将柱塞4的前端制成锥体,限压阀壳3前端台阶孔的孔口制成锥形口,两者的锥度相同,用此锥面密封结构取代平面密封结构,其密封效果好且可靠,其工艺性好,制造精度要求不高。而对现有阀座1、弹簧2的结构不作改变。

Claims (1)

1.一种柱塞机油泵限压阀,包括阀座、柱塞、限压阀壳和弹簧,其特征在于:所述柱塞的前端为锥体,所述限压阀壳前端台阶孔的孔口为与柱塞前端的锥体相配的锥形口。
CN201520509051.7U 2015-07-15 2015-07-15 一种柱塞机油泵限压阀 Active CN204852880U (zh)

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CN201520509051.7U CN204852880U (zh) 2015-07-15 2015-07-15 一种柱塞机油泵限压阀

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CN204852880U true CN204852880U (zh) 2015-12-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107300029A (zh) * 2017-08-17 2017-10-27 湖南机油泵股份有限公司 限压阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107300029A (zh) * 2017-08-17 2017-10-27 湖南机油泵股份有限公司 限压阀

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