Patent ID: 9404456
Filing Date: 2016-08-02
CPC Classification: F02M

Claim Text:
1. A fuel injection valve comprising: a slidable valve element; a valve seat member having a valve seat formed thereon and an opening at a downstream side, the slidable valve element being seated on the valve seat at a time of valve closing; a passage for swirling provided at each of two opposite downstream sides of a central hole, the passage for swirling communicating with the opening of the valve seat member; at least one swirl chamber formed on a downstream side of the passage for swirling, an entirety of the at least one swirl chamber having a curved inner surface and causing fuel to swirl in an interior of the at least one swirl chamber so as to give swirling force to the fuel; and at least one fuel injection port having a cylindrical shape and being formed in a bottom portion of the at least one swirl chamber, the fuel being injected outside through the at least one fuel injection port, wherein