Kipphebel zur zweistufigen Nockenbetätigung

A two-step finger follower rocker arm assembly (10) for cooperating with high-lift (25) and low-lift cam lobes (23) of an engine camshaft (27). The rocker arm assembly includes a follower body (12) for engaging an hydraulic lash adjuster (18) and a valve stem (24). A central well (26) contains a rol...

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Bibliographische Detailangaben
Hauptverfasser:	FERNANDEZ, HERMES A, HENDRIKSMA, NICK J, LIPINSKI, ANDREW J
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A two-step finger follower rocker arm assembly (10) for cooperating with high-lift (25) and low-lift cam lobes (23) of an engine camshaft (27). The rocker arm assembly includes a follower body (12) for engaging an hydraulic lash adjuster (18) and a valve stem (24). A central well (26) contains a roller (28,28') for following the central low-lift cam lobe. Pivotably mounted on the body are lateral high-lift followers (46a,46b,46'), including sliders or rollers, for following the lateral high-lift cam lobes. A latch block (56,56') disposed on the body surface (23) is slidable by piston (74) and spring means (90) between first and second positions to engage and thereby alternatively latch and unlatch the high-lift followers. In latched position, the rocker arm assembly acts in high-lift mode; in unlatched position, in low-lift mode.