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Control valve arrangement of a fuel injector

United States Patent

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October 13, 2020
View the Complete Patent at the US Patent & Trademark Office
A control valve arrangement includes a valve body with a filling chamber with a filling hole. A filling valve is arranged in the filling chamber for opening or closing a first fluid communication controlling filling of a first control chamber, the filling valve having a filling valve member with a moving valve seat, the filling valve member being normally biased open by a first spring. A control valve opens and closes a second fluid communication for controlling the emptying of the first control chamber, the control valve being normally biased closed by a second spring. A plug is arranged in the valve body for closing the filling chamber, the plug being provided with an opening which cooperates with the moving valve seat, the opening defining the first fluid communication between the filling chamber and the first control chamber.
15/ 771,519
October 18, 2016
F02M 63/00 (20060101)F02M 47/02 (20060101)F02M 51/06 (20060101)