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US 2006/0075984 A1Published application
Adjustable cam shaft
OwnerGrant Goracyinventor
Life of this patent
Estimating the term…
Abstract
An adjustable cam shaft includes an elongated shaft which may include multiple shaft sections rotatably coupled to one another. Intake and exhaust cam lobes are carried by the one or more shafts and are selectively rotatable relative to one another and selectively locked in place relative to one another in order to adjust a displacement angle between the cam lobes to alter intake and exhaust timing and other engine characteristics without the need to replace the cam shaft.
Claims31
An adjustable cam shaft, comprising:
- an elongated shaft;
- a first cam lobe carried by the shaft;
- a second cam lobe carried by the shaft;
- wherein the first and second cam lobes are selectively rotatable relative to one another and selectively locked in place relative to one another, whereby a displacement angle between the cam lobes can be selectively adjusted;
- and
- means for locking the first and second cam lobes to the shaft.
3 more elements
(canceled)
An adjustable cam shaft, comprising:
- a first shaft section having a cam lobe extending therefrom;
- a second shaft section having a cam lobe extending therefrom;
- and
- means for locking the first and second shaft sections relative to one another;
- wherein either the first or second cam lobe comprises an intake cam lobe associated with an intake valve of an engine, and the other cam lobe comprises an exhaust lobe associated with an exhaust valve of an engine;
- and
- wherein the first and second shafts are selectively rotatable relative to one another and selectively locked in place relative to one another, whereby a displacement angle between the cam lobes can be selectively adjusted.
4 more elements
An adjustable cam shaft, comprising:
- an elongated shaft;
- a first cam lobe carried by the shaft;
- a second cam lobe carried by the shaft;
- and
- means for locking the first and second cam lobes to the shaft;
- wherein either the first or second cam lobe comprises an intake cam lobe associated with an intake valve of an engine, and the other cam lobe comprises an exhaust lobe associated with an exhaust valve of an engine;
- and
- wherein the first and second cam lobes are selectively rotatable relative to one another and selectively locked in place relative to one another, whereby a displacement angle between the cam lobes can be selectively adjusted.
5 more elements
An adjustable cam shaft, comprising:
- an elongated shaft;
- a first cam lobe carried by the shaft;
- and
- a second cam lobe carried by the shaft;
- wherein the first and second cam lobes are selectively locked in place relative to one another, whereby a displacement angle between the cam lobes can be selectively adjusted;
- wherein the elongated shaft comprises first and second shaft sections, the first cam lobe extending from the first shaft section, and the second cam lobe extending from the second shaft section, and wherein the shaft sections are rotatably associated with one another and selectively locked in place relative to one another;
- and
- wherein the first shaft section includes a shaft extending therefrom, and the second shaft section includes a hollow sleeve extending therefrom and configured to accept the shaft therein.
5 more elements
An adjustable cam shaft, comprising:
- an elongated shaft;
- a first cam lobe carried by the shaft;
- and
- a second cam lobe carried by the shaft;
- wherein the first and second cam lobes are selectively locked in place relative to one another, whereby a displacement angle between the cam lobes can be selectively adjusted;
- wherein the elongated shaft comprises first and second shaft sections, the first cam lobe extending from the first shaft section, and the second cam lobe extending from the second shaft section, and wherein the shaft sections are rotatably associated with one another and selectively locked in place relative to one another;
- and
- means for locking the first and second shaft sections relative to one another.
5 more elements
Dependencies are inferred from the claim text.