mass air flow


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mass air flow

The amount of air (by weight) flowing through an engine.
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HTF MI Analyst have added a new research study on Title Global (United States, European Union and China) Air Flow Sensors Market Research Report 2019-2025with detailed information of Product Types [, Mass air flow sensors & Volume air flow sensors], Applications [Aerospace, HVAC & automobiles] & Key Players Such as First Sensor AG, TE Connectivity Corporation, Sensirion AG Switzerland, Honeywell International Inc., Siemens AG, Denso Europe, Degree Controls Inc., Oscium, A Dechnia LLC., Delta OHM & Systec Controls etc.
This was mainly due to the average cold mass air flow velocities were almost constant around the trailing vehicle cooling package.
As the pressure and temperature of the compressed air changed, the volumetric flow meters could not adjust for the change in mass air flow. There also was not enough pipe straight run to create a repeatable flow profile, which again affected accuracy and consistency of measurement.
A building envelope air tightness model can then be built on the basis of the following generic equation that allows mass air flows to be positive or negative, depending on the air flow direction:
Based on the NOx sensor signal, in combination with an engine mass air flow sensor and temperature sensor, the necessary urea dosing rate is calculated by the control algorithm.
Engine upgrade projects typically require lowering the equivalence ratio (i.e., a higher mass air flow rate through the engine for a given mass fuel flow rate) to achieve successively lower [NO.sub.X] emissions.
The engines also yield improved combustion and lower fuel consumption through a closed-loop electronic fuel injection system, electronic ignition, automotive-type oxygen and mass air flow sensors and a three-way catalytic muffler.