Patent ID: 7673811

Claim:
A compensating element for an injection valve, comprising: a cup-shaped body with a cup-base and a recess; a piston having an axially extending guide segment making a clearance fit with respect to the recess of the cup-shaped body, the guide segment of the piston arranged at least partially axially moveable with the guide segment in the recess of the cup-shaped body; and a sealing element, which is arranged on the side of the guide segment facing away from the cup base, which couples the cup-shaped body with the piston, wherein a sealed system is delimited by the cup-shaped body, the piston and the sealing element, and wherein the coupling of the sealing element is friction-fit with at least one of the cup-shaped body and the piston; wherein the sealing element includes an outer ring and an inner ring coupled together by a sealing ring having a greater elasticity than the outer ring and the inner ring; and wherein one of the sealing element outer ring and the cup-shaped body includes at least one first outer protrusion that extends around the entire circumference of an outer coupling area of the sealing element and cup-shaped body, the at least one first outer protrusion of the one of the sealing element outer ring and the cup-shaped body creating an oversize fit with respect to the other one of the sealing element outer ring and the cup-shaped body in the outer coupling area.