Patent ID: 8443774
Filing Date: 2013-05-21
Classification: F01L

Abstract:
1. A camshaft variator device for an internal combustion engine including a crankshaft and a camshaft; said camshaft variator device comprising: a) a first component for fixed attachment to said camshaft so that rotation of said first component will cause said camshaft to rotate; said first component including a transmission mechanism of the first component having at least one spiral tooth; b) A second component for being rotated by said crankshaft; c) A third component to join said first and second components to one another so that said first component will rotate when said second component is rotated by said crankshaft and for rotating said first component relative to said second component to rearrange the positional relationship of said camshaft relative to said crankshaft; said third component including a transmission mechanism of the third component having at least one spiral tooth for coacting with said spiral tooth of said transmission mechanism of the first component so that longitudinal movement of said transmission mechanism of the third component relative to said transmission mechanism of the first component will cause rotation of said transmission mechanism of the first component; said third component including a plurality of spaced apart male members; and d) a fourth component, interposed between said second component and said third component, for causing longitudinal movement of said third component; said second component having a plurality of spaced apart female members for slidably receiving said male members of said third component to secure said second and third component together in a manner which allows longitudinal movement of said third component relative to said second component while preventing rotation of said third component relative to said second component.