Lightweight rocker arm
Patent
·
OSTI ID:5753271
This patent describes a lightweight rocker arm assembly of the cam follows type for an internal combustion engine. It comprises: an elongated rocker arm body formed of a metal matrix composite material, the rocker arm body having a generally rectangular centralized opening extending between sidewalls thereof, a first end formed to engage a support upon which the rocker arm pivots and a second end for engaging and activating a valve stem; and cam engaging means comprising a roller formed of a first ceramic material for engaging a cam on a rotating cam shaft to pivot the rocker arm assembly, the roller being mounted for rotation on a roller shaft formed of a second ceramic material and mounted in circular openings in the sidewalls of the rocker arm body intermediate the rocker arm body first and second ends.
- Assignee:
- Ford Motor Co., Dearborn, MI (USA)
- Patent Number(s):
- A; US 4995281
- Application Number:
- PPN: US 7-386755
- OSTI ID:
- 5753271
- Country of Publication:
- United States
- Language:
- English
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