US Patent 10364784 Fuel injector arrangement

A fuel injector arrangement for supplying fuel into a cylinder of an internal combustion engine. The fuel injector arrangement includes a fuel injector and a sealing ring which is arranged around the circumference of the fuel injector. The sealing ring is located between a fuel inlet and/or outlet of the fuel injector located nearest to an injector tip of the fuel injector and the injector tip, wherein the sealing ring has an asymmetrical cross section with a narrow end extending towards the injector tip and a wider end extending away from the injector tip. The wider end has a recess therein creating two legs with a space there between.