Patent ID: 6705264
Filing Date: 2004-03-16
Classification: F01L,F02B,F02F,F02M

Abstract:
An engine including a valve actuating mechanism comprising a camshaft with at least two adjacent intake cams and at least one exhaust cam, a pair of adjacent, pivotally-supported first and second intake rockers, each intake rocker being pivotal about an intake rocker support and having a cam side arm with a following surface engaged with one of the intake cams for pivoting the intake rocker about the intake rocker support, the first intake rocker also having a valve side arm with an operating portion that directly engages an intake valve of the engine, a first member slideably supported within a first bore of the first intake rocker, a second member slideably supported within a second bore of the first intake rocker, a first passage located within the intake rocker support and in communication with the second bore, the second intake rocker further including a cam side arm with a first engagement surface that engages the first member, the second member selectively engaging the first member when an actuating pressure is supplied to the first passage such that movement of the second intake rocker is transmitted to the first intake rocker, and at least one exhaust rocker having a cam side arm with an exhaust following surface engaged with the exhaust cam for pivoting the exhaust rocker about an exhaust rocker support, the exhaust rocker support lying generally parallel to the intake rocker support and being disposed on a side of the camshaft generally opposite of the intake rocker support.