Caterpillar Inc.
Valvetrain pivot stand assembly having multifunctional cap

Abstract:

An internal combustion engine includes a valvetrain having a pivot stand assembly that includes rocker arm assemblies and a compound pivot stand including a cap that integrates camshaft journaling and rocker arm support. The cap includes an elongate cap body structured to bolt to a base to form a camshaft journal bore, and each of a first and a second shaft bore for receiving rocker arm pivot shafts to position the rocker arms at different pivot locations. The rocker arms may be structured to actuate gas exchange valves arranged in a diamond pattern.