Übersetzung für "Stratified combustion" in Deutsch

Moreover, stratified combustion has the advantage to be very efficient.

Both stratified combustion and homogeneous auto-ignition are characterized by high efficiency.

The direct injection of the fuel is a suitable means for realizing a stratified combustion chamber charge.

Engine Test Bench: The test runs were conducted on a V6 spark-ignition motor with spray-guided, stratified combustion process.

The lean stratified combustion in working cycle B works with high excess air and produces very low NO x emissions, more specifically when a very small quantity of fuel is injected.

No significant further improvements in fuel economy have been achieved through the utilization of fuel parameter modifications in lean-burn stratified charge combustion using the wall-guided or air-guided direct-injection processes of production engines.

In stratified charge operation, which is typically also referred to as a stratified combustion process, high charge movements may result.

In the stratified combustion process or the lean operation, fuel injection into the cylinder is not carried out until just before the ignition point-in-time so that, at the point-in-time of the ignition, despite a very low quantity of injected fuel, an ignitable combustion mixture forms around the spark plug.

A comparable power control via the quantity of the fuel metered in is also used in an Otto engine having direct injection in an operation having stratified combustion chamber charging.

Specifically when very small quantities of fuel are injected, the lean stratified combustion results in very low NO x emissions.

This measure is particularly advantageous for a stratified charge combustion process since the fuel is injected late during the compression stroke and the wetting of the piston with fuel must be prevented.

In jet-controlled or a stratified charge combustion, the necessary symmetry of the torus-shaped swirl is maintained by the fuel injection nozzle according to the invention and a tilting of the swirl is prevented.

Because of the late fuel injection during the working cycle, a stratified combustion chamber charge having local differences in fuel concentration develops, with a very lean mixture formed or pure air outside fuel cone 8 .

The measures referred to above are used preferably in connection with injection nozzles for internal combustion engines with spark ignition wherein the fuel is injected in the form of a hollow cone, and particularly in connection with a stratified charge combustion process.

The fuel scattered in this manner is transported by a tumble current to the electrodes of the spark plug, the circular projecting part of the piston trough preventing the atomized fuel from being scattered in the direction of the cylinder wall, thus ensuring a stable stratified charge combustion.

Due to the late fuel injection during the working cycle, a stratified combustion chamber charge with locally varying fuel concentrations occurs, with a very lean mixture being formed or pure air existing outside conical fuel jet 8 .

The fuel which thus becomes sprayed is transported by a tumble flow to the electrodes of the spark plug, the circular-shaped projecting part of the piston recess preventing the sprayed fuel from being scattered in the direction of the cylinder wall, whereby a stable stratified charge combustion is ensured.

Because of the late fuel injection during the operating cycle, a stratified combustion chamber charging occurs at locally different fuel concentrations, a very lean mixture formed and/or pure air being located outside of the fuel cone 8 .

The generation of such a stratified charge is generally known from stratified internal combustion engines, whereby the formation and control of the stratified charge can be accomplished with a suitably shaped piston head as well as with design measures that affect the flow characteristic in an air inlet line, for example in the form of charge deflection plates.

The method has proven particularly effective for stratified internal combustion engines which operate with an air flow in the combustion chamber that has in particular a twist axis that extends perpendicular to the piston motion.

The electrodes are arranged adjacent the injection nozzle whereby a fuel-rich mixture is ignited such that stratified combustion is achieved depending on the engine load, and, as a result of a pressure and temperature increase resulting from the combustion of the fuel-rich mixture portion, the fuel-lean mixture in the remainder of the combustion chamber is combusted.

A comparable power control via the quantity of the fuel metered in takes place also in an Otto engine having direct injection in an operation having stratified combustion chamber charging.

With a view to lowering further fuel consumption in road operation, the stratified charge combustion phase must be enlarged over the entire torque/speed map by improving the spray jet characteristics.