发明名称 |
Method for manufacturing a fuel injection valve |
摘要 |
There is disclosed a fuel injection valve for internal combustion engines, which is used in combination with a fuel injection device for intermittent injection of fuel and which comprises a main body having a passageway extending between a fuel inlet and a fuel outlet, a valve member which cooperates with a valve seat disposed in the outlet and which is movable between a closed position and a fully open position in response to the pressure of the fuel fed into the passageway, the valve member being made up of a shaft member and a valve head, and is manufactured in such a way that a valve head made of a steel ball is welded by an instantaneous current passage welding process to one end of the shaft member and that the steel ball is cut perpendicularly to the axis on a smaller circle toward the shaft member than the equator of the steel ball so as to form an edge where the fuel jet flares.
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申请公布号 |
US4270257(A) |
申请公布日期 |
1981.06.02 |
申请号 |
US19770840297 |
申请日期 |
1977.10.07 |
申请人 |
NTN TOYO BEARING CO. LTD. |
发明人 |
KIMATA, KEI;FUKUNAGA, SHOICHI |
分类号 |
F02M61/08;(IPC1-7):B23P15/00;B23P13/00 |
主分类号 |
F02M61/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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