Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Reexamination Certificate
2006-02-07
2006-02-07
Dolinar, Andrew M. (Department: 3747)
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
Reexamination Certificate
active
06994069
ABSTRACT:
A hydraulic control device for valve trains of an engine having cylinders which are optionally deactivated by applying oil pressure to the valve train so as to suspend the operations of associated intake and exhaust valves, the hydraulic control device comprising a plurality of rocker shafts which are arranged in line, and each of which is provided with hydraulic passages therein for applying oil pressure to each of the valve trains so as to activate and deactivate the cylinders, a plurality of sets of hydraulic circuits, which are provided to the rocker shafts, respectively, for applying oil pressure to each of the rocker shafts, and oil pressure measuring sections provided to the hydraulic circuits, respectively, for measuring oil pressure in each of the hydraulic circuits.
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Office Communication from the Japanese Patent Office dated Mar. 18, 2004 in Application No. 2002-149729 with English language translation.
Hasebe Tetsuya
Ikematsu Tomofumi
Kubodera Masao
Sugiyama Tetsu
Tatara Yusuke
Dolinar Andrew M.
Harris Katrina
Westerman, Hattori, Daniels and Adrian LLP
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