Patent ID: 6152111
Filing Date: 2000-11-28
Classification: F02M

Abstract:
A fuel injection valve for internal combustion engines, having a valve member (11), which can be displaced axially outward in a bore (9) of a valve body (1) counter to the force of a closing spring (47) and which on an end toward the combustion chamber has a closing head (13) that protrudes from the bore (9) and forms a valve closing member, that on a side toward the valve body (1) has a valve sealing face (15) which cooperates with a valve seat face (17) disposed on an end of the valve body (1) toward the combustion chamber, and at least one injection opening (23) on the closing head (13) which originates at a pressure chamber (19) and whose outlet opening (25) is covered by the valve body (1) in a closing position of the valve member (11) and is uncovered in an outward-oriented opening stroke, and in the fuel injection valve a damping chamber (35) is provided, which damps a stroke motion of the valve member (11) in the opening direction, a damping piston is disposed axially displaceably on a valve member shaft (27) of the valve member (11), which damping piston with one end face defines the damping chamber (35) and with an end face 2 remote from the damping chamber (35) rests on a shoulder of a valve member (11), and the damping chamber (35) can be relieved into a low-pressure chamber via at least one throttle opening (45).