Internal combustion engine
AssigneeMahle International GmbH
InventorsPatrick Altherr, Hermann Hoffmann
Life of this patent
Estimating the term…
Abstract
An internal combustion engine may include at least one cylinder, a first outlet valve and a second outlet valve for directing exhaust gas out from a combustion chamber of the at least one cylinder. The first outlet valve may include a first valve opening and a first valve body where the first valve opening is adjustable between a closed position and an open position. The second outlet valve may include a second valve opening and a second valve body where the second valve body is adjustable between a closed position and an open position. An adjusting lever may adjust one or both of the first valve body and the second valve body between the open position and the closed position.
Claims20
An internal combustion engine, comprising:
- at least one cylinder including a combustion chamber;
- a first outlet valve and a second outlet valve for directing exhaust gas out from the combustion chamber of the at least one cylinder;
- the first outlet valve including a first valve opening and a first valve body, wherein the first valve body is adjustable between a closed position where the first valve body closes the first valve opening, and an open position where the first valve body frees the first valve opening for flowing through by the exhaust gas;
- the second outlet valve including a second valve opening and a second valve body, wherein the second valve body is adjustable between a closed position where the second valve body closes the second valve opening, and an open position where the second valve body frees the second valve opening for flowing through by the exhaust gas;
- a shared, rotatable adjusting lever, wherein the first valve body and the second valve body via the shared, rotatable adjusting lever are respectively adjustable simultaneously between the open position and the closed position of the first outlet valve and the second outlet valve;
- and
- wherein the first valve body and the second valve body are constructed such that after the first valve body is adjusted by a predetermined adjustment travel away from the closed position of the first outlet valve, the second valve body still closes the second valve opening.
An internal combustion engine, comprising:
- at least one cylinder defining a combustion chamber;
- a first outlet valve and a second outlet valve for directing exhaust gas out from the combustion chamber of the at least one cylinder;
- the first outlet valve including a first valve opening and a first valve body, wherein the first valve body is adjustable between a closed position where the first valve body closes the first valve opening, and an open position where the first valve body frees the first valve opening for flowing through by the exhaust gas;
- the second outlet valve including a second valve opening and a second valve body, wherein the second valve body is adjustable between a closed position where the second valve body closes the second valve opening, and an open position where the second valve body frees the second valve opening for flowing through by the exhaust gas;
- a shared, rotatable adjusting lever including a lever arm structured and arranged to simultaneously adjust the first valve body and the second valve body respectively between the open position and the closed position of the first outlet valve and the second outlet valve;
- wherein the first valve body and the second valve body are configured such that after the first valve body is adjusted by a predetermined adjustment travel away from the closed position of the first outlet valve, the second valve opening is closed by the second valve body;
- wherein the second valve body in the closed position of the first outlet valve projects further into the second valve opening than the first valve body projects into the first valve opening;
- and
- wherein the second valve body is arranged at a distance to the second valve opening that is smaller than that of the first valve body to the first valve opening in the open position of the first outlet valve and the second outlet valve.
Dependencies are inferred from the claim text.