Patent ID: 7874282

Claim:
A coupling device for hydraulically coupling a fuel injector to a fuel rail of a combustion engine comprising a spring; a fuel injector cup designed to engage a fuel inlet portion of the fuel injector, the fuel injector cup including: a first portion for engaging a distance element to be positioned between the fuel injector cup and a cylinder head, the distance element being physically distinct from both the spring and the fuel injector cup, the distance element also being uncoupled from the fuel injector such that the fuel injector can translate independent of the distance element; and a second portion for engaging the spring, the spring positioned outside of the fuel injector cup and between the fuel injector cup and a cylinder head; wherein the distance element is secured between the fuel injector cup and the cylinder head by one or more fixing elements extending at least partially through each of the first portion of the fuel injector cup, the physically distinct distance element, and the cylinder head; and a tube with a first end and a second end, the first end being couplable to the fuel rail and the second end being coupled to the fuel injector cup.