Patent ID: 7341204
Filing Date: 2008-03-11
Classification: F02M

Abstract:
1. A fuel injection valve which comprises a valve seat member ( 3 ) which has at one end portion a valve seat ( 8 ) and an outlet hole ( 7 ) penetrating through a central portion of the valve seat ( 8 ), a valve body ( 18 ) which is housed in the valve seat member ( 3 ) and operates to open and close the valve seat ( 8 ), and an injector plate ( 10 ) which is joined to one end surface of the valve seat member ( 3 ) and has a plurality of fuel injection holes ( 11 ) disposed to be spaced radially outward from the outlet hole ( 7 ); and in which a funnel-shaped fuel collecting recess ( 35 ) for collecting a fuel passing through the valve seat ( 8 ) and guiding the fuel to the outlet hole ( 7 ) is provided between the valve seat ( 8 ) and the outlet hole ( 7 ), and a flat fuel diffusion chamber ( 36 ) which diffuses radially outward the fuel passing through the outlet hole ( 7 ) and guides the fuel to the plurality of fuel injection holes ( 11 ) is provided between opposed surfaces of the valve seat member ( 3 ) and the injector plate ( 10 ), characterized in that a seating portion (