AFR

(redirected from Air fuel ratio)
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AcronymDefinition
AFRAustralian Financial Review
AFRAfrican
AFRApplicable Federal Rate
AFRAlternate Frame Rendering
AFRAir Filter Regulator (various companies)
AFRAfrikaans (South African language)
AFRAir France (ICAO code)
AFRAccounting and Financial Reporting (various organizations)
AFRAir Force Reserve
AFRAnnual Financial Report
AFRAmerican Family Radio (Christian radio network)
AFRAides à Finalité Régionale (French: Regional Aid)
AFRA Football Report (est. 2009)
AFRAutomatic Fingerprint Recognition
AFRAutomatic Facial Recognition
AFRAutomatic File Replication
AFRAir Fuel Ratio
AFRAsian Formula Renault (race)
AFRArbel Fauvet Rail (French railway manufacturer; Douai, France)
AFRAir Force Regulation
AFRAnnualized Failure Rate
AFRAssociation Française des Russisants (French Russian culture association)
AFRAncient Faith Radio (Internet radio station)
AFRAmerican Financial Realty Trust
AFRAfren PLC (UK)
AFRAssociation Française pour la Réduction des Risques (French: French Association for Risk Reduction)
AFRAnnual Failure Rate
AFRAfrican Department (International Monetary Fund)
AFRAir-to-Fuel Ratio
AFRAutomatic Feature Recognition
AFRAssociation Française du Ragdoll (French: French Ragdoll Association)
AFRAllocation Formation Reclassement
AFRAlternative Fuels and Raw Materials
AFRAverage Failure Rate
AFRAdvanced Fuel Research, Inc.
AFRAvailable Financial Resources (finance)
AFRAssign Frequency for Network Reporting (US DoD)
AFRAccident Frequency Ratio
AFRAsociatia Femeilor din România (Women's Association of Romania)
AFRAway From Reactor (water storage basin)
AFRApplied for Registration
AFRAlt.fairs.renaissance (Usenet group frequented by RenFest attendees)
AFRAuthorized Firm Representative (persons responsible for managing a financial institution's access to the National Registration System)
AFRAmericans for a Free Republic (Dallas, TX)
AFRAdministrative and Fundraising expense Rate
AFRAir Force Recognition
AFRAvailable for Reassignment
AFRAutomatic Flexible Routing
AFRAudit Finding Report
AFRAccidental Fecal Release
AFRArndt-Ford-Roper
AFRAides à la Formation Recherche
AFRAsynchronous Fixed Repetition
AFRArtillery Flash Ranging
AFRAuthentication Failure Report
AFRAppropriation for RDT&E
AFRApproximate Factor Re-Normalization
AFRAdditional Funding Request
AFRAs Found Report
AFRAdvanced Fuel Reprocessing
AFRAmpoule Filling Room
AFRAcid Fractionation Recycle
AFRAverage Fuel Rate
AFRAffordable Readiness
AFRAutomated Field Report
AFRAngle Face Ring (pipe valves and fittings)
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References in periodicals archive ?
Intake vacuum drops to open the throttle when engine is working hard and requires more fuel to maintain the air fuel ratio. In case of deceleration, power required by the engine decreases comparatively and thus, the throttle closes itself.
The prime motivation of the present study is on the application of disc-type ultrasonic atomizers to a two-wheeler engine, to device a control mechanism to maintain the air fuel ratio, and to assess the thermodynamic performance of the engine.
Both the UEGO and HEGO sensors are important to obtain accurate controls of the closed loop air fuel ratio control system and they must be located properly in order to sense evenly and accurately the AFR from each cylinder.
Since the air fuel ratio is also a contributing factor to vehicle performance and drive comfort, both objective evaluation and subjective evaluation by a trained driver is required to validate the optimization results that are obtained from dynamometer tests and computer simulations.
"It demonstrates reliable starting and operates over the full air fuel ratio range from 120:1 (idling) to 15:1 (stoichiometric or full power).
Air fuel ratio shows not much difference in both conditions.
When ethanol blended gasoline used, the ratio of air-fuel mixture became leaner and the ECU would reduce the fuel injection quantity to maintain the air fuel ratio. Ethanol blends has given relatively higher torque than gasoline for the all speed conditions.
Use of electronic burner programmers will deliver even more precise modulating control of the air and fuel rates, also improving upon the repeatability of the air fuel ratio. The result will be reduced air levels and flue losses and increased operational efficiency.
The performance of the engine was evaluated in terms of brake specific fuel consumption, brake thermal efficiency, volumetric efficiency and air fuel ratio. The combustion characteristics of the engine were studied in terms of cylinder pressure and rate of pressure rise with respect to crank angle.
The MEC-FI controller precisely controls air fuel ratio based on engine variables such as fuel pressure, fuel flow, intake manifold temperature, exhaust temperature and air manifold pressure.
These allow for excess air levels to be continuously monitored and the feedback can also be used to adjust the air fuel ratio, enabling optimum combustion to be achieved at all times.