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A mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density with temperature and pressure.
The Volvo FMX (FMX meaning "Forward control Medium Xtreme" [2]) is a heavy-duty truck produced by Volvo Truck Corporation. It was introduced in 2010. It was introduced in 2010. [ 3 ] [ 4 ] Based on the standard Volvo FM which is related, the FMX range is a multipurpose truck range for distribution, construction and on highway/off highway ...
An air flow meter is a device similar to an anemometer that measures air flow, i.e. how much air is flowing through a tube. It does not measure the volume of the air passing through the tube, it measures the mass of air flowing through the device per unit time, though Thus air flow meters are simply an application of mass flow meters for the ...
Volvo FM Petronas tanker truck at Sandakan port, Malaysia. Volvo FM day cab on the A4 near Hoofddorp, the Netherlands. In 2010, Volvo released the completely facelifted FM. The facelift which adds the new styling and added engines. It was the first time fitted with LED daytime running lights. Also, Volvo launched its related to the FM, the FMX.
4 speed non-syncro manual: Dimensions; ... Volvo FCH: I6 ohv: 4,394 cc (268.1 cu in) 90 bhp (67 kW) Hesselman engine Gallery. 1936 Volvo LV84 fire engine.
The mass flow rate is the mass of the fluid traveling past a fixed point per unit time. The mass flow meter does not measure the volume per unit time (e.g. cubic meters per second) passing through the device; it measures the mass per unit time (e.g. kilograms per second) flowing through the device. Volumetric flow rate is the mass flow rate ...
The pump's air intake is filtered by a rotating screen or the vehicle air filter to exclude dirt particles large enough to damage the system. Air is delivered under light pressure to the injection point(s). A check valve prevents exhaust forcing its way back through the air injection system, which would damage the pump and other components.
Fuel enrichment during cold-start is achieved by altering the timing of the main injectors based on engine temperature. The idle speed is also fully controlled by the digital Motronic unit, including fast-idle during warm-up. Updated variants ML 2.10.1 through 2.5 add MAF Mass Air Flow sensor logic and direct fire ignition coils per cylinder.