Patent ID: 7201330
Filing Date: 2007-04-10
Classification: F02M

Abstract:
1. A fuel injection valve, comprising: a stepped tubular body of a magnetic material, including a larger body section, a smaller body section smaller in sectional size than the larger body section, and a step portion connecting the larger body section and the smaller body section; a valve seat fixed to a forward end of the smaller body section of the stepped tubular body; a stepped core tube including a smaller tube section confronting the valve seat, and a larger tube section press fit in the smaller body section of the stepped tubular body, the larger tube section of the stepped core tube being formed with a reduced portion located in the smaller body section of the stepped tubular body; a valve element disposed in the smaller body section of the tubular body, between the smaller tube portion of the core tube and the valve seat; and an electromagnetic actuator disposed outside the stepped tubular body, and arranged to drive the valve element between the core tube and the valve seat.