Patent ID: 11867097
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A rocker arm, comprising:
a cam side arm comprising:
a bearing surface, a cam-side pivot extension, and a plunger set seat arranged in a triangular configuration, and a centered longitudinal force transfer axis along which the bearing surface is configured to transfer an actuation force to the plunger set seat; and

a valve side arm comprising:
a rocker shaft bore configured to receive a rocker shaft;
a valve side pivot extension pivotally connected to the cam-side pivot extension;
a hydraulic capsule including a hollow capsule body comprising:
a latch groove;
a hydraulic port in fluid communication with the latch groove;
a plunger set configured to receive the actuation force from the plunger set seat;
a latch set alienable with the latch groove, the latch set configured to reciprocate in the hollow capsule body and switch between a latched condition and an unlatched condition; and
a latch-setting insert in the hollow capsule body, the latch-setting insert positioning the latch set with respect to the latch groove, the plunger set further configured to push the latch set towards the latch-setting insert;

a capsule mount comprising:
a capsule bore configured to receive the hydraulic capsule; and
an end face at an inner end of the capsule bore;
a lost motion spring biased between the end face and the latch-setting insert; and
a centered longitudinal lost motion axis along which the plunger set selectively acts on the latch-setting insert and the latch set so as to collapse the lost motion spring, the centered longitudinal lost motion axis being offset from the centered longitudinal force transfer axis such that the plunger set receives the actuation force from the plunger set seat at an offset from the centered longitudinal lost motion axis; and

an arm extension extending from the rocker shaft, the arm extension configured to be coupled to a valve arrangement.