Two-step rocker arm assembly

Details Two-step rocker arm assembly Two-step rocker arm assembly

2007-03-13

2010-06-08

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090440, C074S559000

Reexamination Certificate

active

07730861

ABSTRACT:
A two-step rocker arm assembly is provided having an arm member and a first roller assembly rotatably mounted with respect to the arm member and defining a generally C-shaped opening. A shaft member rotatably supports a second and a third roller assembly. The shaft member extends through the generally C-shaped opening and is selectively translatable therein to guide the second and third roller assemblies with respect to the arm member. A coupling lever is mounted with respect to the shaft member and is operable to selectively retain the shaft member with respect to the arm member for unitary movement therewith.

REFERENCES:
patent: 6691657 (2004-02-01), Hendriksma et al.
patent: 6769387 (2004-08-01), Hayman et al.
patent: 6966291 (2005-11-01), Fischer et al.
patent: 7305951 (2007-12-01), Fernandez et al.

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