Patent ID: 8226016
Filing Date: 2012-07-24
Classification: F02M

Abstract:
1. A fuel injector assembly comprising: a substantially cylindrical injector body having a longitudinal axis and having a leading end, a fuel inlet passage, a backleak passage, and a trailing end that terminates in an end surface; a cap that is sized to be a clearance fit over the trailing end of the injector body, said cap fitted over the trailing end of the injector body to define, therebetween, a chamber for receiving fuel from said backleak passage; and a seal for sealing said chamber so as to prevent the flow of fuel therefrom, wherein said seal is axially located between said end surface of the trailing end and an inlet end of said fuel inlet passage; wherein the inlet end of the fuel inlet passage is defined in a sidewall of the injector body, and said cap defines an opening through which, in use, fuel is supplied to the inlet end of said fuel inlet passage; wherein the injector body and cap are configured to receive a threaded inlet connector having a fuel delivery passage, the cap defining an opening configured to receive the inlet connector therethrough, the cap additionally defining threads configured to cooperate with the threads on the inlet connector to secure the inlet connector to the cap so as to urge the inlet connector into fluidtight engagement with the inlet end of the fuel inlet passage with sufficient force to fix the cap to the injector body so that relative movement between the cap and the injector body is substantially prevented, further comprising the inlet connector; wherein the inlet connector passes through the opening in the cap and engages the injector body fluidtightly, wherein the inlet connector fixes the cap to the injector body to substantially prevent relative movement between the cap and the injector body.