Patent ID: 7591436

Claim:
A fuel injection valve for intermittent injection of fuel into a combustion chamber of an internal combustion engine, the fuel injection valve comprising: an elongated housing; a valve seat with injection openings; a high pressure space in the housing which is connected to a high pressure fuel inlet and to the valve seat; an injection valve element which is guided in the housing in a longitudinally adjustable manner and interacts with the valve seat for closing and opening the injection openings; and a hydraulic control apparatus for controlling the adjusting movement of the injection valve element, wherein the hydraulic control apparatus has a control body which is held on its circumference in an opening in the housing, wherein the opening is connected to the high pressure space, said control body being provided with a control passage which, on a first end side of the control body, is connected to a control space and, on a second end side of the control body, is closed and is connectable to a low pressure space by means of a pilot valve, wherein the control body is held on its circumference in a non-sealing manner in the opening of the housing and has a flat sealing face on its second end side, wherein the flat sealing face surrounds the control passage, the control body sealingly engaging said flat sealing face, under action of fuel pressure in the high pressure space, against a first sealing face of a holding body which is held fixedly in the housing and on which a second sealing face is formed which lies in a common flat end face with the first sealing face on the holding body and with which the holding body sealingly engages a seat face which is formed in the housing and surrounds the opening in the housing.