Patent application number | Description | Published |
20080196681 | MOUNTING OF AN SCP CAMSHAFT ON AN ENGINE - A method disclosed for mounting a camshaft and a phaser on an engine, the camshaft being an SCP camshaft formed of concentric inner and outer rotary members each fast in rotation with a respective one of two groups of cams and the phaser enabling the phase of at least one of the rotary members of the camshaft to be varied dynamically relative to the phase of the engine crankshaft and the other rotary member. The method comprises first securing the phaser | 08-21-2008 |
20090266320 | VALVE ACTUATING SYSTEM - An actuating system for a gas exchange valve of an internal combustion engine is described which comprises two cams ( | 10-29-2009 |
20090293826 | VARIABLE PHASE MECHANISM - A variable phase mechanism is described which comprises a drive member rotatable about an axis, first and second driven members rotatable in synchronism with the drive member, an actuator for rotating the first driven member relative to the drive member to vary the phase of rotation of the first driven member relative to the drive member, and a yoke coupling the second driven member for rotation with one of the drive member and the first driven member and movable transversely relative to the axis of the drive member to vary the phase of rotation of the second driven member relative to the drive member. In the invention, transverse movement of the yoke is effected by means of interaction between the other of the drive member and the first driven member and a radially outwards facing surface defined by the yoke. | 12-03-2009 |
20100050967 | CAMSHAFT AND PHASER ASSEMBLY - An assembly is provided comprising an SCP camshaft ( | 03-04-2010 |
20100288229 | VALVE MECHANISM FOR AN ENGINE - An internal combustion engine has intake ( | 11-18-2010 |
20120160200 | Engine Valve System - An engine valve system comprises two cams ( | 06-28-2012 |
Patent application number | Description | Published |
20080257104 | Camshaft Assembly - The invention relates to a camshaft assembly comprising an inner shaft, an outer tube rotatable relative to the inner shaft, and two groups of cams mounted on the outer tube, the first group of cams being fast in rotation with the outer tube, and the second group being rotatably mounted on the outer surface of the tube and being connected for rotation with the inner shaft by means of connecting members that pass through circumferentially elongated slots in the outer tube. In the invention, the outer tube surrounds the inner shaft with clearance and the members connecting different ones of the cams of the second group to the inner shaft are inclined relative to one another and act to locate the axis of the inner shaft relative to the outer tube. | 10-23-2008 |
20090178634 | ENGINE WITH VARIABLE VALVE ACTUATING MECHANISM - An internal combustion engine is described having a valve mechanism that comprises an SCP camshaft operating two sets of valves. The first set of valves is operated via a summation rocker system such that the valve lift characteristic results from the combination of two cam profiles. The second set of valves has a valve lift characteristic that is different from that of the first set. In the invention, changing the valve lift characteristic of the first set of valves by varying the phase of the inner shaft of the SCP camshaft relative to the outer tube of the SCP camshaft serves additionally to alter the operation of the second set of valves. | 07-16-2009 |
20100132640 | CAMSHAFT ASSEMBLY - A camshaft assembly is disclosed which comprises an inner shaft, an outer tube surrounding and rotatable relative to the inner shaft, and two groups of cam lobes mounted on the outer tube, the first group of cam lobes being fast in rotation with the outer tube, the second group being rotatably mounted on the outer surface of the tube and connected for rotation with the inner shaft. The connection between the second group of cam lobes and the inner shaft is effected by means of driving members whose positions are adjustable in order to compensate for significant manufacturing inaccuracies between the inner shaft and its associated group of cam lobes. | 06-03-2010 |