Slotted guide
AssigneeMahle International GmbH
InventorsPatrick Altherr, Thorsten Ihne, Rolf Kirschner, Mario Mohler, Markus Walch
Life of this patent
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Abstract
The present disclosure concerns a slotted guide of a valve train of an internal combustion engine. The slotted guide includes two guide tracks, which cross one another in a crossing region, for guiding a switching pin of a cam follower of the valve train. The two guide tracks have an on-track region, a crossing region, and an off-track region. At least one radial projection, structured and arranged to protrude beyond the slotted guide in a radial direction, is provided in or downstream from the off-track region of at least one guide track.
Claims20
A slotted guide, comprising:
- two guide tracks, structured and arranged to cross one another in a crossing region, for guiding a switching pin of a cam follower of a valve train of an internal combustion engine,
- wherein each of the two guide tracks has an on-track region, a crossing region, and an off-track region;
- and
- at least one radial projection, structured and arranged to protrude beyond the slotted guide in a radial direction, provided in or downstream from the off-track region of at least one guide track of the two guide tracks.
A valve train for an internal combustion engine, comprising:
- a camshaft and at least one cam follower, wherein the at least one cam follower cooperates with the camshaft via at least two cams and is axially adjustable,
- a switching pin arranged in the at least one cam follower,
- a slotted guide arranged on the camshaft for guiding the switching pin, the slotted guide including two guide tracks structured and arranged to cross one another in a crossing region, the two guide tracks each having an on-track region, a crossing region, and an off-track region;
- wherein the slotted guide further includes at least one radial projection provided in or downstream from the off-track region of at least one guide track of the two guide tracks, the at least one radial projection protruding beyond the slotted guide in a radial direction;
- and
- wherein the switching pin cooperates with the two guide tracks of the slotted guide such that the at least one cam follower is adjusted between a first cam and a second cam of the at least two cams.
An internal combustion engine, comprising:
- a valve train, the valve train including:
- a camshaft and at least one cam follower, wherein the at least one cam follower cooperates with the camshaft via at least two cams and is axially adjustable,
- a switching pin arranged in the at least one cam follower,
- a slotted guide arranged on the camshaft for guiding the switching pin, the slotted guide including two guide tracks structured and arranged to cross one another in a crossing region, the two guide tracks each having an on-track region, a crossing region, and an off-track region;
- wherein the slotted guide further includes at least one radial projection provided in or downstream from the off-track region of at least one guide track of the two guide tracks, the at least one radial projection protruding beyond the slotted guide in a radial direction;
- and
- wherein the switching pin cooperates with the two guide tracks of the slotted guide such that the at least one cam follower is adjusted between a first cam and a second cam of the at least two cams.
Dependencies are inferred from the claim text.