Common rail fuel injection system and fuel injector for same
A fuel injection system is provided which includes a source of high pressure fuel, a low pressure fuel reservoir, and at least one fuel injector which has an injector body that defines a nozzle chamber, a needle control chamber, a needle control vent, a fuel inlet, and a nozzle outlet. A high pressu...
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| creator | Tian, Ye Nan, Xinshuang |
| description | A fuel injection system is provided which includes a source of high pressure fuel, a low pressure fuel reservoir, and at least one fuel injector which has an injector body that defines a nozzle chamber, a needle control chamber, a needle control vent, a fuel inlet, and a nozzle outlet. A high pressure line extends between the source of high pressure fuel and the fuel inlet. A low pressure line extends between the low pressure fuel reservoir and the needle control vent. A needle control valve is positioned in the injector body and includes a poppet valve member with a first position in which the needle control chamber is fluidly connected to the fuel inlet but closed to the needle control vent. The poppet valve also has a second position in which the needle control chamber is closed to the fuel inlet but open to the needle control vent. A needle valve is positioned in the injector body and includes a one piece needle valve member with a closing hydraulic surface exposed to fluid pressure in the needle control chamber, and an opening hydraulic surface exposed to fluid pressure in the nozzle chamber. |
| format | Patent |
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A high pressure line extends between the source of high pressure fuel and the fuel inlet. A low pressure line extends between the low pressure fuel reservoir and the needle control vent. A needle control valve is positioned in the injector body and includes a poppet valve member with a first position in which the needle control chamber is fluidly connected to the fuel inlet but closed to the needle control vent. The poppet valve also has a second position in which the needle control chamber is closed to the fuel inlet but open to the needle control vent. 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A high pressure line extends between the source of high pressure fuel and the fuel inlet. A low pressure line extends between the low pressure fuel reservoir and the needle control vent. A needle control valve is positioned in the injector body and includes a poppet valve member with a first position in which the needle control chamber is fluidly connected to the fuel inlet but closed to the needle control vent. The poppet valve also has a second position in which the needle control chamber is closed to the fuel inlet but open to the needle control vent. A needle valve is positioned in the injector body and includes a one piece needle valve member with a closing hydraulic surface exposed to fluid pressure in the needle control chamber, and an opening hydraulic surface exposed to fluid pressure in the nozzle chamber.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EFI</sourceid><recordid>eNrjZLBxzs_Nzc9TKErMzFFIK03NUcjMy0pNLskEihVXFpek5iok5qUgy-QXKaQBcXFibioPA2taYk5xKi-U5mbQdHMNcfbQLS0uSCxJzSspjk8sKMjJTE4EmVccb2RgYGxgYGpmbmpuTIpaAGgJNqg</recordid><startdate>20030327</startdate><enddate>20030327</enddate><creator>Tian, Ye</creator><creator>Nan, Xinshuang</creator><scope>EFI</scope></search><sort><creationdate>20030327</creationdate><title>Common rail fuel injection system and fuel injector for same</title><author>Tian, Ye ; Nan, Xinshuang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_applications_200300567573</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2003</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Tian, Ye</creatorcontrib><creatorcontrib>Nan, Xinshuang</creatorcontrib><collection>USPTO Published Applications</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Tian, Ye</au><au>Nan, Xinshuang</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Common rail fuel injection system and fuel injector for same</title><date>2003-03-27</date><risdate>2003</risdate><abstract>A fuel injection system is provided which includes a source of high pressure fuel, a low pressure fuel reservoir, and at least one fuel injector which has an injector body that defines a nozzle chamber, a needle control chamber, a needle control vent, a fuel inlet, and a nozzle outlet. A high pressure line extends between the source of high pressure fuel and the fuel inlet. A low pressure line extends between the low pressure fuel reservoir and the needle control vent. A needle control valve is positioned in the injector body and includes a poppet valve member with a first position in which the needle control chamber is fluidly connected to the fuel inlet but closed to the needle control vent. The poppet valve also has a second position in which the needle control chamber is closed to the fuel inlet but open to the needle control vent. A needle valve is positioned in the injector body and includes a one piece needle valve member with a closing hydraulic surface exposed to fluid pressure in the needle control chamber, and an opening hydraulic surface exposed to fluid pressure in the nozzle chamber.</abstract><oa>free_for_read</oa></addata></record> |
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| source | USPTO Published Applications |
| title | Common rail fuel injection system and fuel injector for same |
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