专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2010050703A2 APPARATUS FOR PREVENTING CAVITATION DAMAGE TO A DIESEL ENGINE FUEL INJECTION PUMP 审中-公开
标题翻译：用于防止对柴油发动机燃油喷射泵造成伤害的装置
公开(公告)号：WO2010050703A2
公开(公告)日：2010-05-06
申请号：PCT/KR2009006146
申请日：2009-10-23
申请人： HYUN DAI HEAVY IND CO LTD , KIM DONG-HUN , RYU SEUNG-HYUP , GHAL SANG-HAK , KANG SANG-LIP , KIM JU-TAE
发明人： KIM DONG-HUN , RYU SEUNG-HYUP , GHAL SANG-HAK , KANG SANG-LIP , KIM JU-TAE
IPC分类号： F02M59/26
CPC分类号： F02M59/265 , F02M59/26 , F02M63/005 , F02M2200/04
摘要： The present invention relates to an apparatus for preventing cavitation damage to a diesel engine fuel injection pump, wherein a pressure control valve for shutting a barrel port is mounted on a deflector or a barrel of the fuel injection pump to increase the fuel pressure in the barrel port during an early stage of fuel compression. This prevents fountain-type or jet-type cavitation from occurring before and after the opening of the barrel port during a late stage of fuel compression, thereby preventing corrosion damage caused by cavitation occurring mainly in a plunger and the barrel port of the fuel injection pump. The key technical features of the present invention are for an apparatus for preventing cavitation damage to a diesel engine fuel injection pump having a fuel intake valve and the barrel port for the inflow and outflow of fuel, respectively, comprising: a valve member mounted on the barrel port to shut the barrel port during an early stage of fuel compression performed by the upward movement of the plunger to increase the pressure in the barrel port; a valve housing installed in the deflector or the barrel of a pump housing to support the valve member; and a pressure control valve constituted by a spring interposed between the valve member and the valve housing to elastically support the valve member. The barrel port is shut to increase the pressure therein during the early stage of fuel compression, and thus preventing cavitation caused by the pressure difference between the barrel port and a pump chamber before and after the opening of the barrel port during the late stage of fuel compression. When the pressure of fuel in the barrel port exceeds a level higher than an open level, the barrel port opens to discharge fuel.
摘要翻译：本发明涉及一种用于防止对柴油发动机燃料喷射泵的气穴破坏的装置，其中用于关闭桶口的压力控制阀安装在燃料喷射泵的偏转器或桶上以增加筒体内的燃料压力港口在燃料压缩的早期阶段。这防止在燃料压缩的后期期间在筒口打开之前和之后发生喷泉型或喷射式气蚀，从而防止主要在柱塞和燃料喷射泵的筒口中产生的气蚀引起的腐蚀损坏。本发明的关键技术特征是分别用于防止对具有燃料进气阀和用于燃料流入和流出的桶形端口的柴油发动机燃料喷射泵的空穴破坏的装置，该装置包括：阀构件，其安装在在通过柱塞的向上运动进行的燃料压缩的早期阶段期间关闭桶口以增加桶形端口中的压力; 安装在泵壳体的偏转器或筒体中以支撑阀构件的阀壳体; 以及压力控制阀，其由夹在阀构件和阀壳体之间的弹簧构成，以弹性地支撑阀构件。在燃料压缩的早期期间，关闭桶口以增加其中的压力，从而防止在燃料晚期阶段在桶口开口之前和之后由桶口和泵室之间的压力差引起的空化压缩。当桶口中的燃料压力超过开启高度时，桶口打开以排出燃料。

IPRDB

热门服务

关于我们

友情链接

联系方式