Two step rocker arm having side by side roller configuration
AssigneeEaton Intelligent Power Limited
InventorsJames E. McCarthy, Jr., Dale Arden Stretch
Life of this patent
Estimating the term…
Abstract
A rocker arm assembly constructed in accordance to one example of the present disclosure includes an outer rocker arm and an inner rocker arm. The outer rocker arm has a first roller configuration that rotates around a first axis. The inner rocker arm has a second roller configuration that rotates around a second axis. The inner rocker arm is configured to move between a latched and unlatched position relative to the outer rocker arm. One of the first and second axes is positioned for alignment over an engine valve. The other of the first and second axes is offset from the engine valve.
Claims17
A rocker arm assembly comprising:
- an outer rocker arm having a first roller configuration that rotates around a first axis;
- an inner rocker arm having a second roller configuration that rotates around a second axis, the inner rocker arm configured to move between a latched and unlatched position relative to the outer rocker arm;
- wherein one of the first and second axes is positioned for alignment over an engine valve and the other of the first and second axes is offset from alignment from the engine valve;
- wherein when the inner rocker arm is latched, a single cam profile rests between the first and second roller configurations;
- and
- wherein when the single cam profile rotates, the engine valve is opened on one of the first and second roller configurations and closed on the other of the first and second roller configurations.
A rocker arm assembly comprising:
- an outer rocker arm having a first roller configuration that rotates around a first axis positioned for alignment over an engine valve;
- an inner rocker arm having a second roller configuration that rotates around a second axis, the inner rocker arm configured to move between a latched and unlatched position relative to the outer rocker arm;
- wherein when the inner rocker arm is latched, a single cam profile rests between the first and second roller configurations;
- and
- wherein when the single cam profile rotates, the engine valve is opened on one of the first and second roller configurations and closed on the other of the first and second roller configurations.
A rocker arm assembly comprising:
- an outer rocker arm having a first roller configuration that rotates around a first axis positioned for alignment over an engine valve;
- an inner rocker arm having a second roller configuration that rotates around a second axis, the inner rocker arm configured to move between a latched and unlatched position relative to the outer rocker arm;
- wherein when the single cam profile rotates, the engine valve is opened on one of the first and second roller configurations and closed on the other of the first and second roller configurations;
- and
- when the inner rocker arm is unlatched, a single cam profile rests on one of the first and second roller configurations.
Dependencies are inferred from the claim text.