Variable displacement engine having selectively engageable...

Details Variable displacement engine having selectively engageable... Variable displacement engine having selectively engageable...

2011-03-29

2011-03-29

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390

Reexamination Certificate

active

07913656

ABSTRACT:
Systems and methods for selectively activating and deactivating gas exchange valves in a variable displacement internal combustion engine include a rocker arm having a positioning device that opposes movement of a lash adjustment device while deactivated to position a coupling hole of the rocker arm within a desired coupling range to facilitate coupling of the rocker arm during subsequent activation of an associated engine cylinder.

REFERENCES:
patent: 5107803 (1992-04-01), Furnivall
patent: 5778842 (1998-07-01), Schmidt et al.
patent: 6058895 (2000-05-01), Hermsen

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