Patent ID: 8511280
Filing Date: 2013-08-20
Classification: F02M

Abstract:
1. A coupling device for hydraulically and mechanically coupling a fuel injector to a fuel rail of a combustion engine, the coupling device comprising a fuel injector cup having a central longitudinal axis and being designed to be hydraulically coupled to the fuel rail and to engage a fuel inlet portion of the fuel injector, a first flange being fixedly coupled to the fuel injector cup and a second flange being fixedly coupled to the fuel injector, at least one shell element, the shell element comprising a first projection and a second projection, the flanges being axially arranged between the first projection and the second projection, and the shell element being designed and arranged in a way that the flanges are in mechanical cooperation with the shell element to retain the fuel injector in the fuel injector cup in direction of the central longitudinal axis, and a fixing element being arranged on a circumferential outer surface of the shell element and being designed to prevent a radial movement of the shell element relative to the flanges, wherein the fixing element comprises at least one radially spring-loaded element which is arranged and designed in a manner that the spring-loaded element is in engagement with a recess in the shell element to prevent an axial movement of the fixing element relative to the shell element.