Cam angle sensor mounting structure for engine
OwnerMasahiro Uchidainventor
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OwnerMasahiro Uchidainventor
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An improved journaling and sensor mounting arrangement for the VVT mechanisms of a twin overhead cam engine. By utilizing a combined single bearing cap for the VVT ends of the camshafts that mounts the sensors that are associated with timing wheels on the respective camshafts, it is possible to maintain a very neat external appearance and a compact construction. Also, high accuracy can be obtained because of the positive rotation of the components. In addition, a simplified oil supply and control arrangement is also disclosed for lubricating the thrust surfaces of the camshaft bearings and other bearing surfaces as well as supplying hydraulic fluid to the VVT mechanisms.
An internal combustion engine comprised of an engine body providing a number of axially spaced bearing sections, a plurality of axially spaced bearing caps fixed to said engine body and cooperating with said bearing sections for journalling axially spaced bearing surfaces of a camshaft, a variable valve timing mechanism associated with one end of said camshaft for driving said camshaft in an adjustable, timed fashion from an engine crankshaft, one of said journalled camshaft bearing surfaces being juxtaposed to said variable valve timing mechanism, a timing member formed on said camshaft on the side of said one of said journalled camshaft bearing surfaces opposite to said variable valve timing mechanism, and a timing sensor cooperating with said timing member for providing a signal indicative of camshaft angle, said timing sensor being carried by the bearing cap journalling said one of said journalled camshaft bearing surfaces.
Dependencies are inferred from the claim text.