Patent ID: 8313125
Filing Date: 2012-11-20
Classification: F02M

Abstract:
1. A connection assembly for connecting an injector to a fluid supply comprising: a coupling arrangement comprising: a housing, at least one locking element designed to at least partly surround the housing forming a first area of contact with the housing via positive locking or frictional connection to limit rotational movement of the housing, and a connecting element arranged at least partly circumferentially around the housing and being cylindrical with a center axis, the connecting element having a cylindrical shape and comprising at least one locking recess designed to at least partly take in the respective locking element to limit rotational movement of the connecting element via positive locking, wherein the at least one locking recess is sized and shaped for insertion of the at least one locking element through the locking recess in a radial direction perpendicular to an axial direction of the housing after the housing has been received in the connecting element in the axial direction of the housing, wherein the locking element is horseshoe-shaped and generally extends in a single plane, wherein the horseshoe-shaped locking element has an inner circumference and an outer circumference radially outward from the inner circumference, and wherein the horseshoe-shaped locking element includes a thicker central portion and thinner end portions, wherein a portion of the outer circumference of the locking element proximate the thicker central portion defines an outer surface that aligns with an outer surface of the cylindrical connecting element, wherein the housing, the locking element and the connecting element are designed and arranged such as to limit movement of the housing relative to the connecting element at least in one direction of the center axis, wherein the housing forms part of the injector, and the connecting element, which is fixed to a pipe of the fluid supply, communicates with the pipe through a fluid recess at an axial end area of the connecting element.