Injection assembly, bearing assembly, and fuel injector

Abstract

A fuel injector includes an injection assembly and a bearing assembly. The injection assembly includes an injection housing that includes a housing sealing surface defining a cavity, and an injection body disposed at least partially within the injection housing. The injection body includes a plunger that includes a plunger sealing surface that interfaces with the housing sealing surface to create a fuel-tight seal, and an extension member coupled to the plunger and translates the plunger in an axial direction. The bearing assembly includes a bearing housing and an outer bearing coupled to and disposed within the bearing housing. The outer bearing and the bearing housing define a plurality of bearing channels. The bearing assembly further includes an inner bearing disposed at least partially within the outer bearing and slidably coupled to the outer bearing, and a support shaft coupled to the inner bearing and translates in an axial direction.

Dependencies are inferred from the claim text.