Hydraulic control device for valve trains of engine

A hydraulic control device for valve trains (VT) of an engine (E) having cylinders which are optionally deactivated by applying oil pressure to the valve train (VT) so as to suspend the operations of associated intake and exhaust valves (IV, EV), the hydraulic control device comprising a plurality o...

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Bibliographische Detailangaben
Hauptverfasser:	IKEMATSU, TOMOFUMI, HASEBE, TETSUYA, KUBODERA, MASAO, SUGIYAMA, TETSU, TATARA, YUSUKE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT STEAM ENGINES TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic control device for valve trains (VT) of an engine (E) having cylinders which are optionally deactivated by applying oil pressure to the valve train (VT) so as to suspend the operations of associated intake and exhaust valves (IV, EV), the hydraulic control device comprising a plurality of rocker shafts (31, 31') which are arranged in line, and each of which is provided with hydraulic passages (59a, 59b) therein for applying oil pressure to each of the valve trains (VT) so as to activate and deactivate the cylinders, a plurality of sets of hydraulic circuits (34, 35; 34', 35'), which are provided to the rocker shafts (31, 31'), respectively, for applying oil pressure to each of the rocker shafts (31, 31'), and oil pressure measuring sections (S1, S1') provided to the hydraulic circuits (35, 35'), respectively, for measuring oil pressure in each of the hydraulic circuits (35, 35').