Variable phase drive mechanism
AssigneeMechadyne PLC
InventorsIan Methley, Timothy Mark Lancefield
Life of this patent
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Abstract
A variable phase drive mechanism is described for providing drive from an engine crankshaft to two sets of cams. The drive mechanism comprises a drive member 32 connectable for rotation with the engine crankshaft and two driven members 38 and 40, each connectable for rotation with a respective one of the two sets of cams. Each of the driven members 38, 40 is connected by a vane-type hydraulic coupling for rotation with the drive member 32. The hydraulic coupling between the drive and driven members is such as to enable the angular position of each of the driven members 38 and 40 to be varied relative to the drive member 32 independently of the other driven member.
Claims8
A variable phase drive mechanism for providing drive from an engine crankshaft to two sets of cams, the drive mechanism comprising a drive member connectable for rotation with the engine crankshaft and two driven members each connectable for rotation with a respective one of the two sets of cams, wherein the drive and driven members are all mounted for rotation about a common axis and the driven members are coupled for rotation with the drive member by means of vane-type hydraulic couplings to enable the phase of the driven members to be adjusted independently of one another relative to the drive member.
Dependencies are inferred from the claim text.