Valve deactivation system and improved latchable HLA therefor

Details Valve deactivation system and improved latchable HLA therefor Valve deactivation system and improved latchable HLA therefor

2007-01-09

2007-01-09

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090160, C123S090390

Reexamination Certificate

active

10966646

ABSTRACT:
A deactivating valve control system for an internal combustion engine and, for each deactivating intake poppet valve (19D), there is provided a deactivating lash compensation device (37). Each of the devices (37) includes a latch member (83) biased toward an unlatched condition (FIG.3) by a spring member69,including a vertically-extending spring portion (73). In one embodiment (FIG.1), the deactivation system includes an actuation rod (49) which is rotated to overcome the biasing force of the spring members (69) and move the latch members (83) into latching engagement (FIG.5). In another embodiment (FIG.7), an actuation wire (105) is reciprocated linearly to pivot a lever member (99) associated with each deactivating device (37), again to overcome the spring (69) and move the latch member (83) into latching engagement.

REFERENCES:
patent: 6321704 (2001-11-01), Church et al.
patent: 6837197 (2005-01-01), Cecur

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