Ford Global Technolgoies, LLC

Michael George Aimone

Eduard Golovatai-Schmidt

Matthew Byrne Diggs

Jamie Charles Hanshaw

Hoa T Dinh

An internal combustion engine arrangementwith a variable cam timing unit pressurized oil supply arrangementis provided. A first pumpdelivers oil through a first check valveto a VCT unitand additionally provides oil to the engine lubrication system. A second oil pumpprovides pressurized oil to the VCT unitthrough a second check valveAn accumulatoris connected between the firstand secondcheck valves to pressurize oil delivered to the variable cam timing unit

Variable cam timing unit oil supply arrangement

An accumulator is provided in an engine camshaft having at least one lobe and an internal cavity . A compliance member is provided for pressurizing the fluid within the internal cavity

Camshaft accumulator

An oil feed system for an internal combustion engine with a variable camshaft timing mechanism includes a bracket attached to the front structure of the engine at a final location which is determined in part by the interaction of the bracket and the camshaft adjuster to which it is furnishing oil. An oil feed spud which engages the adjuster will be ablated when the engine is initially operated, so as to provide a running clearance between the VCT mechanism and the oil supply spud, while the same time allowing piloting of the oil supply spud within the variable camshaft timing mechanism.

Oil feed system for IC engine with variable camshaft timing

An arrangement of a dual oil feed variable timed camshaft is provided. The arrangement includes a camshaft which has a radial side and an end face . The camshaft has first and second passages fluidly connecting end face with the radial side . A hub is connected with camshaft end face . The hub has a central opening intersecting with the first and second passages . The hub has at least first and second axial spaced radial passages intersecting with the hub central opening . A timing pulley has relative rotational movement with respect to the hub . The timing pulley and the hub define pressure chambers which are divided by vanes into retard angle spaces intersecting with the hub first radial passages and advance angle spaces intersecting with the hub second radial passage . A fastener is provided having intersecting longitudinal and radial bores fluidly connecting the camshaft first passage with the hub first radial passage . The fastener connects the hub to fasten the hub with the camshaft

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Belleville, MI, United States of America

Michael George Aimone