Valve control system including deactivating rocker arm

Details Valve control system including deactivating rocker arm Valve control system including deactivating rocker arm

2006-10-17

2006-10-17

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With compound movement of cam follower

C123S090160, C123S090390, C123S090440, C074S569000

Reexamination Certificate

active

07121241

ABSTRACT:
A valve control system (15) in which there is provided a deactivating rocker arm (51) disposed beneath a conventional, upper rocker arm (27), and disposed within a module housing (17). The deactivating rocker arm includes a latch tab (63) and when the latch tab engages (FIG.3) a latch member (65), the system operates in a normal, valve activating mode. When the latch member is in an unlatched condition (FIG.4), the deactivating rocker arm pivots, compressing the valve return spring (41), which thereafter serves as the required lost motion spring, biasing the deactivating rocker arm (51) and lash compensation device (35) back toward their normal position.

REFERENCES:
patent: 6615782 (2003-09-01), Hendriksma et al.

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