CN113236460A - 一种防止柱塞脱出的喷油泵 - Google Patents

一种防止柱塞脱出的喷油泵 Download PDF

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CN113236460A
CN113236460A CN202110530672.3A CN202110530672A CN113236460A CN 113236460 A CN113236460 A CN 113236460A CN 202110530672 A CN202110530672 A CN 202110530672A CN 113236460 A CN113236460 A CN 113236460A
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plunger
hole
spring seat
head
barrel assembly
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黄民备
邓秋明
邓飞
欧阳玲湘
龙美彪
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Nanyuediankong Hengyang Industrial Technology Co ltd
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Nanyuediankong Hengyang Industrial Technology Co ltd
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Priority to CN202110530672.3A priority Critical patent/CN113236460A/zh
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102Mechanical drive, e.g. tappets or cams
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48Assembling; Disassembling; Replacing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

本发明公开的一种防止柱塞脱出的喷油泵,包括:与发动机连接的高压油泵泵体,在所述高压油泵泵体内设置有若干并列的柱塞偶件安装孔;安装每一柱塞偶件安装孔内的柱塞偶件,每一柱塞偶件包括柱塞套、柱塞、柱塞弹簧和柱塞弹簧座,其在所述柱塞弹簧座的中心开设有一柱塞穿过孔,所述柱塞的底部穿过所述柱塞穿过孔并在所述柱塞穿过所述柱塞穿过孔底部末端设置有一柱塞头部,所述柱塞头部的外径大于所述柱塞穿过孔的内径并且所述柱塞头部的厚度大于所述柱塞穿过孔的高度。这样柱塞头部不易从柱塞弹簧座的柱塞穿过孔中脱出,可以有效的防止柱塞脱出而导致柱塞弹簧座被顶烂裂和柱塞断裂的故障。

Description

一种防止柱塞脱出的喷油泵
技术领域
本发明涉及一种柴油发动机的高压油泵技术领域,特别涉及一种应用于燃油喷射系统中的防止柱塞脱出的喷油泵。
背景技术
现有共轨系统中的喷油泵的柱塞装配在柱塞弹簧座中,在装配中容易导致柱塞从柱塞弹簧座中脱出,而导致柱塞弹簧座被顶烂裂和柱塞断裂的故障。
发明内容
本发明所要解决的技术问题针对现有共轨系统中的喷油泵装配时柱塞容易从柱塞弹簧座中脱出的问题而提供一种防止柱塞脱出的的喷油泵。
本发明所要解决的技术问题可以通过以下技术方案来实现:
一种防止柱塞脱出的喷油泵,包括:
与发动机连接的高压油泵泵体,在所述高压油泵泵体内设置有若干并列的柱塞偶件安装孔;
安装每一柱塞偶件安装孔内的柱塞偶件,每一柱塞偶件包括柱塞套、柱塞、柱塞弹簧和柱塞弹簧座,所述柱塞套滑动配置在所述柱塞偶件安装孔内,所述柱塞中上部滑动配置在所述柱塞套内的柱塞孔内,所述柱塞的底部与所述柱塞弹簧座连接,所述柱塞弹簧座安装在所述喷油泵内的滚轮体部件上;所述柱塞弹簧套在所述柱塞的中下部,该柱塞弹簧的上端作用在所述柱塞套的底部,下端作用在所述柱塞弹簧座上;其特征在于;
在所述柱塞弹簧座的中心开设有一柱塞穿过孔,所述柱塞的底部穿过所述柱塞穿过孔并在所述柱塞穿过所述柱塞穿过孔底部末端设置有一柱塞头部,所述柱塞头部的外径大于所述柱塞穿过孔的内径并且所述柱塞头部的厚度大于所述柱塞穿过孔的高度。
由于采用了如上柱塞头部的厚度大于所述柱塞穿过孔的高度的技术方案,本发明可防止在装配中导致柱塞从柱塞弹簧座中脱出,防止柱塞弹簧座被顶烂裂和柱塞断裂的故障。
附图说明
图1为本发明一种防止柱塞脱出的喷油泵的主视图。
图2为本发明一种防止柱塞脱出的喷油泵的剖面示意图。
图3为本发明一种防止柱塞脱出的喷油泵的局部放大剖视图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体图示,进一步阐述本发明。
参见图1至图3,图中给出的一种防止柱塞脱出的的喷油泵,包括与发动机连接的高压油泵泵体100,在高压油泵泵体100内并列开设有若干柱塞偶件安装孔110。在每一柱塞偶件安装孔110内安装有一柱塞偶件200。
每一柱塞偶件200包括柱塞套300、柱塞500、柱塞弹簧400和柱塞弹簧座600,柱塞套300滑动配置在柱塞偶件安装孔110内,柱塞500中上部滑动配置在柱塞套300内的柱塞孔310内,柱塞500的底部与柱塞弹簧座600连接,柱塞弹簧座600安装在喷油泵内的滚轮体部件700上;柱塞弹簧400套在柱塞500的中下部,该柱塞弹簧400的上端作用在柱塞套300的底部,下端作用在柱塞弹簧座600上。
在柱塞弹簧座600的中心开设有一柱塞穿过孔610,柱塞500的底部穿过柱塞穿过孔610并在柱塞500穿过柱塞穿过孔610底部末端设置有一柱塞头部510,柱塞头部510的外径大于柱塞穿过孔610的内径并且该柱塞头部510的厚度H1大于柱塞穿过孔610的高度H2,这样柱塞头部510从柱塞弹簧座600的柱塞穿过孔610中倾斜装入,装入后因柱塞头部510的厚度H1的高度大于H2的柱塞穿过孔610的高度高度,柱塞头部510不易从柱塞弹簧座600的柱塞穿过孔610中脱出,可以有效的防止柱塞脱出而导致柱塞弹簧座被顶烂裂和柱塞断裂的故障。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明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发明的结构原理,在不脱离本发明精神和范围的前提下,本发明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发明范围内。本发明要求保护范围有所附的权利要求书及其等同物界定。

Claims (1)

1.一种防止柱塞脱出的喷油泵,包括:
与发动机连接的高压油泵泵体,在所述高压油泵泵体内设置有若干并列的柱塞偶件安装孔;
安装每一柱塞偶件安装孔内的柱塞偶件,每一柱塞偶件包括柱塞套、柱塞、柱塞弹簧和柱塞弹簧座,所述柱塞套滑动配置在所述柱塞偶件安装孔内,所述柱塞中上部滑动配置在所述柱塞套内的柱塞孔内,所述柱塞的底部与所述柱塞弹簧座连接,所述柱塞弹簧座安装在所述喷油泵内的滚轮体部件上;所述柱塞弹簧套在所述柱塞的中下部,该柱塞弹簧的上端作用在所述柱塞套的底部,下端作用在所述柱塞弹簧座上;其特征在于;
在所述柱塞弹簧座的中心开设有一柱塞穿过孔,所述柱塞的底部穿过所述柱塞穿过孔并在所述柱塞穿过所述柱塞穿过孔底部末端设置有一柱塞头部,所述柱塞头部的外径大于所述柱塞穿过孔的内径并且所述柱塞头部的厚度大于所述柱塞穿过孔的高度。
CN202110530672.3A 2021-05-15 2021-05-15 一种防止柱塞脱出的喷油泵 Pending CN113236460A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061936A (zh) * 2013-01-10 2013-04-24 无锡开普机械有限公司 共轨泵的进出油阀
CN203835590U (zh) * 2014-05-22 2014-09-17 无锡威孚高科技集团股份有限公司 单体式共轨高压泵的防脱落弹簧座

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061936A (zh) * 2013-01-10 2013-04-24 无锡开普机械有限公司 共轨泵的进出油阀
CN203835590U (zh) * 2014-05-22 2014-09-17 无锡威孚高科技集团股份有限公司 单体式共轨高压泵的防脱落弹簧座

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Application publication date: 20210810