Patent ID: 8544767
Filing Date: 2013-10-01
Classification: F02M

Abstract:
1. A fuel injection device, which is provided with a fuel channel through which a high-pressure fuel is supplied to an injection hole, and a recovery channel through which the fuel leaked from the fuel channel is recovered, the fuel injection device comprising: a first valve body in which the fuel channel and the recovery channel are provided, the first valve body having a first end surface at which the fuel channel is opened by an opening; a second valve body in which the fuel channel is formed, the second valve body having a second end surface at which the fuel channel is opened by an opening, the second end surface of the second valve body facing the first end surface of the first valve body; and a force applying member disposed to apply a force to the first valve body and the second valve body, such that the first end surface and the second end surface liquid-tightly contact each other by using the applied force from the force applying member, wherein one of the first end surface and the second end surface is provided with an end surface groove connected to the recovery channel, the end surface groove is provided to enclose at least a part of the opening and is separated from the opening by a clearance, and at least one of the first valve body and the second valve body has a side surface groove extending in a circumferential direction at an outer periphery of the at least one of the first valve body and the second valve body.