Patent ID: 11898525
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A roller tappet for a high-pressure fuel pump, the roller tappet comprising:
a housing having:
a cam contact roller arranged on a drive-side of the housing,
a bridge piece arranged: i) on an inner lateral surface of the housing, and ii) between the cam contact roller and an output-side annular face of the housing, the bridge piece having a rest configured for actuating a pump piston,

a separate annular disc arranged on an output-side of the housing,
a separate adapter bolt extending from the rest beyond the output-side annular face of the housing, and an end face of the adapter bolt, remote from the bridge piece, is configured as a direct rest for the pump piston, and
a bore of the annular disc surrounds and retains the adapter bolt, the bore integrally formed with an annular collar and the annular collar protruding axially from the annular disc, and
at least one surrounding segment of the annular collar is configured as a spring tongue formed with an inner-wall claw, and
the adapter bolt has a locking recess configured to receive a respective inner-wall claw, and the adapter bolt is axially retained by engagement of the claw in the locking recess.