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US 12,140,057 B2Granted
Valve train for an internal combustion engine, in particular of a motor vehicle, as well as an internal combustion engine for a motor vehicle
AssigneeDaimler Truck AG
InventorMatthias Lahr
Life of this patent
Estimating the term…
Abstract
A valve train for an internal combustion engine includes an outlet valve, an engine brake rocker shaft that is pivotable around a pivot axis, where the outlet valve is operable by pivoting the engine brake rocker shaft during an engine braking operation of the internal combustion engine, a camshaft which has a cam via which the engine brake rocker shaft is pivotable around the pivot axis, and a spring element via which the engine brake rocker shaft is tensioned against the camshaft. The spring element is a leaf spring.
Claims8
A valve train for an internal combustion engine, comprising:
- a first outlet valve;
- a first engine brake rocker shaft that is pivotable around a pivot axis, wherein the first outlet valve is operable by pivoting the first engine brake rocker shaft during an engine braking operation of the internal combustion engine;
- a camshaft which has a first cam via which the first engine brake rocker shaft is pivotable around the pivot axis;
- a first spring element via which the first engine brake rocker shaft is tensioned against the camshaft;
- wherein the first spring element is a first leaf spring for a first cylinder, a second outlet valve;
- a second engine brake rocker shaft that is pivotable around the pivot axis, wherein the second outlet valve is operable by pivoting the second engine brake rocker shaft during the engine braking operation of the internal combustion engine;
- wherein the camshaft has a second cam via which the second engine brake rocker shaft is pivotable around the pivot axis;
- a second spring element via which the second engine brake rocker shaft is tensioned against the camshaft;
- wherein the second spring element is a second leaf spring for a second cylinder, and wherein the first leaf spring and the second leaf spring are designed integrally with each other.
6 more elements
Dependencies are inferred from the claim text.