US 12,421,878 B2
Rocker arm assembly with improved latch pin assembly
Andrei Radulescu, Marshall, MI (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Appl. No. 18/705,272
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
PCT Filed Oct. 31, 2022, PCT No. PCT/EP2022/025489
§ 371(c)(1), (2) Date Apr. 26, 2024,
PCT Pub. No. WO2023/072432, PCT Pub. Date May 4, 2023.
Claims priority of provisional application 63/273,586, filed on Oct. 29, 2021.
Prior Publication US 2025/0075645 A1, Mar. 6, 2025
Int. Cl. F01L 1/46 (2006.01); F01L 1/18 (2006.01); F01L 13/00 (2006.01)
CPC F01L 1/46 (2013.01) [F01L 1/18 (2013.01); F01L 13/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A rocker arm assembly comprising:
a cam side rocker arm portion configured to selectively rotate about a pivot axis, the cam side rocker arm portion including an inner surface defining a cam side bore;
a valve side rocker arm portion configured to rotate about the pivot axis relative to the cam side rocker arm portion, the valve side rocker arm portion including an inner surface defining a valve side bore; and
a latch pin assembly for selectively latching and unlatching the cam side rocker arm portion relative to the valve side rocker arm portion, the latch pin assembly comprising:
a latch pin moveable within the cam side bore and the valve side bore, the latch pin comprising a first portion and a second portion, wherein both an outer surface of the first portion and an outer surface of the second portion of the latch pin are frustoconical-shaped and tapered in the same direction.