Patent ID: 6719220
Filing Date: 2004-04-13
Classification: F02M

Abstract:
A fuel injector for fuel-injection systems of internal combustion engines, comprising:a valve-seat member including a valve-seat surface and a valve-closure member configured to cooperate with the valve-seat surface to form a first sealing seat; a swirl disk including a central recess, the valve-closure member penetrating the recess; a sealing seat surface arranged adjacent to the swirl disk; a valve needle connected to the valve-closure member and including at least one swirl channel arranged upstream from the valve-seat surface, the swirl channel configured to generate a swirl in a fuel to be sprayed off by the fuel injector; and a guide compensator insertable into the central recess of the swirl disk, the guide compensator including a central recess to guide the valve needle, and a radial widening at a downstream end of the guide compensator which cooperates with the sealing-seat surface to form a second sealing seat.