Delivery pipe for fuel injection device

F - Mech Eng,Light,Heat,Weapons – 02 – M

Patent

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Details

F02M 55/02 (2006.01) F02M 69/46 (2006.01)

Patent

CA 2516309

An object of the invention is to provide a fuel injector delivery pipe which does not require a tool for holding an upper part and lower part together, and thereby eliminate the process of attaching and removing the tool, and increases the efficiency of the operation. Furthermore, in order to achieve this object, the fuel injector delivery pipe comprises an upper part 2 with an inverted substantially U-shaped vertical cross-section in the longitudinal direction formed with a top wall 2a and two side walls 2b, 2b, and also comprises a lower part 3 with a substantially U-shaped vertical cross-section in the longitudinal direction with a bottom wall 3a and two side walls 3b, 3b. Locking parts 5, 10 are formed in both side walls 2b, 2b of the upper part 2 and in both side walls 3b, 3b of the lower part 3 respectively for locking together the walls, and the locking parts 5, 10 are locked together to temporarily lock the upper part 2 and the lower part 3 together while the parts are integrated by brazing.

L'invention concerne un tube d'amenée pour dispositif d'injection de carburant dans lequel le tube ne nécessite aucun gabarit pour le serrage d'une partie supérieure et de la partie inférieure du tuyau, ce qui évite le travail d'installation et de démontage du gabarit et améliore l'efficacité du travail. Le tuyau d'amenée comprend une partie supérieure (2) et une partie inférieure (3). La partie supérieure (2) comprend une section transversale sensiblement en U, perpendiculaire au sens de la longueur, formée par une paroi de plafond (2a) et deux parois latérales (2b, 2b), et une partie inférieure (3) comprend une section transversale sensiblement en U, perpendiculaire au sens de la longueur, formée par une paroi de fond (3a) et les deux parois latérales (3a, 3b) de la partie inférieure (3), respectivement. La partie supérieure et la partie inférieure (3) sont provisoirement fixées par la connexion des parties de connexion (5, 10) et par le brasage.

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