Patent ID: 11898526
Assignee: ROBERT BOSCH GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 1:
2. A fuel injector comprising:
a fuel injector housing
a valve seat disposed in the fuel injector housing, the valve seat including a base that is mechanically connected to an end of the fuel injector housing and includes a concave inner surface, and an insert that cooperates with the base to define a spray hole that extends between the concave inner surface and an exterior of the valve seat; and a valve body disposed in the fuel injector housing and operable to move along a longitudinal axis of the fuel injector housing between a first position in which the valve body abuts the concave inner surface and in which fluid is prevented from passing through the spray hole, and a second position in which the valve body is spaced apart from the concave inner surface and in which fluid is permitted to pass through the spray hole; wherein a surface of the insert includes surface features that engage with corresponding surface features formed on a surface of the base so as to retain the insert in an assembled configuration with and in direct contact with the base, and the insert is received within a vacancy that is formed in the base, and wherein the surface features of the insert include a clip portion that engages the corresponding surface features formed on the surface of the base, and the corresponding surface features formed on the surface of the base include one of a shoulder, a groove, a recess and a protrusion.