Cam phasing systems and methods
AssigneeHUSCO Automotive Holdings LLC
InventorsAUSTIN SCHMITT, ALLEN TEWES, MICHAEL KUJAK, BRIAN HEIDEMANN
Life of this patent
Estimating the term…
Abstract
Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock an helix rod during cam torque pulses.
Claims20
A cam phasing system configured to vary a rotational relationship between a camshaft and a crankshaft on an internal combustion engine, the cam phasing system comprising:
- a crank coupling component configured to be coupled to the crankshaft;
- a cam coupling component configured to be coupled to the camshaft, wherein the cam coupling component includes a first helical feature;
- and
- an input component including a second helical feature, wherein the second helical feature is configured to interact with the first helical feature to vary a rotational relationship between the camshaft and the crankshaft,
- wherein the interaction between the first helical feature and the second helical feature is configured to frictionally lock the cam coupling component to the input component during rotary torque events.
A cam phasing system configured to vary a rotational relationship between a camshaft and a crankshaft on an internal combustion engine, the cam phasing system comprising:
- a sprocket hub configured to be coupled to the crankshaft;
- a cradle rotor configured to be coupled to the camshaft, wherein the cradle rotor includes a helical feature;
- and
- a helix rod including a spline having a helical portion configured to interact with the helical feature of the cradle rotor to vary a rotational relationship between the camshaft and the crankshaft,
- wherein the interaction between the helical feature and the helical portion is configured to frictionally lock the cradle rotor to the helix rod during rotary torque events.
Dependencies are inferred from the claim text.