Übersetzung für "Fettes gemisch" in Englisch

The probe 5 therefore first registers only oxygen deficiency (rich mixture) as an average.

A rich mixture and therefore a deficiency of oxygen is present during those time spans in which FR is greater than 1.

The counter voltage value UO is selected such that it is located approximately in the middle between the probe voltage values US for rich and lean mixture.

By maintaining identical injection volumes in the two intake passages while throttling the air flow in the neutral passage 5, a comparatively rich mixture is admitted through the neutral passage 5, while the mixture entering through the tangential passage 4 is rather lean.

The resetting occurs to such an extent that a rich mixture is obtained in the upper load range, even if the throttle flap is again opened further with further increase in the value of the accelerator pedal position signal past the position threshold value.

The essential advantage of the invention is to be seen in that as a consequence of this knowledge, the air is preheated above the level used hitherto, before a very rich but homogeneous mixture of fuel and primary air is produced in burners, the mixture then being partially burnt in a precombustion chamber.

In the mix-forming device shown in FIG. 4, the injection nozzle 9 is always fed enough fuel so that a mixture is formed with a Lambda number 0.9, that is, a rich mixture.

It is no longer necessary to reduce the combustion chamber temperature by an "enriched" mixture, which corresponds to an unnecessarily increased fuel consumption.

In this instance charge layering is achieved by providing identical injection volumes in the two intake passages while throttling the air flow in the neutral passage, such that a comparatively rich mixture is admitted through the neutral passage whereas the mixture admitted through the tangential passage is comparatively lean.

By means of a fuel excess--a rich mixture with lambda lower than 1--the oxygen in the exhaust gas can be reduced and the hydrocarbon fraction in the exhaust gas can simultaneously be increased.

Lambda fluctuates in the range of 0.98 ("saturated" mixture) to 1.02 ("lean" mixture), which allows for the catalytic conversion of HC, CO, H2 and NOx on the catalytically active coating 6 of the heat tone sensor 1.

The spark plug sleeve 12 extends through the mixture envelope 14 into the spray cone 9 so that rich mixture from the spray cone 9 is pressed during the compression stroke of the piston through the open end portion 13 of the spark plug sleeve 12 into the ignition chamber 15 while, at the same time, the ignition chamber 15 is vented through the circumferential opening 16 of the spark plug sleeve 12.

In an opposite manner, upstream from the catalytic converter, oxygen deficiency (rich mixture) is generated as long as exhaust gas probe 26 situated downstream from the catalytic converter signals a lean mixture.

This is advantageous, for example, when, in the case of a lean mixture, charge stratification is to be achieved, such that there is a relatively rich mixture in the upper part of the cylinder, i.e., close to the spark plug.

This is because, in the full-load range, the precontrol values are not intended to lead to the lambda value one but, rather, to a lambda value for rich mixture.

As shown in the diagram, when the left cylinder bank 2 is switched off (and therefore operated in a lean manner), the lambda probe signal U1 of the lambda probe 1 indicates a rich mixture, while the lambda probe signal U5 of the lambda probe 5 assigned to the right cylinder bank 4 (but connected to the left cylinder bank 2) indicates a lean mixture.

The invention proceeds from the insight that the process mentioned at the outset must not only function reliably during the recombination of unignitable hydrogen concentrations and effect a reliable ignition at the so-called lower ignition limit, but that a reliable ignition of the hydrogen in the incoming mixture must also be guaranteed at the upper ignition limit (a so-called rich mixture or H2 -air-steam mixture having a relatively high H2 concentration).

In the normal case, a high level (indicating a rich mixture) would have to be expected, and the test result could be characterized as "normal".

By analogy, in FIG. 2(d) the sensor shows the presence of a constantly rich mixture indicating that the presetting of F? corresponds to an excessive fuel amount.

For example, if a rich air-fuel mixture is presented to the internal combustion engine by perturbation ?F.+-., the oxygen sensor may react with either a high or a low output level.

A threshold value is provided for the ? signal, the understepping of which for a certain period of time (? values smaller than 1 indicate a mixture that is too rich) produce an output signal in the form of a trigger for a response signal.

It is no longer necessary to reduce the combustion chamber temperature by an "enriched" mixture, which corresponds to an unnecessarily increased fuel consumption.

If the exhaust-gas oxygen content is less than 3% (rich mixture), the voltage of the lambda sensor increases relative to the increased difference to 0.9V.

If the concentration is too high (rich mixture) or too low (lean mixture), no explosion occurs. Instead, there is just a steady-state combustion reaction or none at all.

Actual ignition with the spark plug takes place in the pre-chamber, in which case a comparatively rich fuel-air mixture is ignited there with the spark plug. The ignition flares which are produced in that case pass by way of the transfer openings into the actual combustion chamber and there ignite a comparatively weak fuel-air mixture.

With this injection, a mixture is produced only in a very small area directly at the spark plug that is so rich that an “ignition torch” results in the combustion chamber that can reliably ignite the rest of the mixture, which in the normal case is lean.

In addition this can involve a lower lambda value of the mixture in the combustion chamber than is wanted (excessively rich mixture) as more gas flows into the combustion chamber than is wanted.

The additional fuel supply is now actuated such that a rich fuel/air mixture is produced, with this rich fuel/air mixture being supplied to the pilot burner 3 .

Thus, a rich mixture is extracted from the dead space 2 and mixed into the lean mixture flowing from the main combustion chamber 5 into the prechamber 10 . This mixing has a positive effect on the mixing homogeneity in the prechamber 10 .