This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Innovative Carburetor Design with Dynamic Air to Fuel Ratio (AFR) Control for Improved Fuel Economy and Reduced Emissions
Technical Paper
2017-32-0003
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
An innovative carburetor system has been developed for use in single cylinder small engines. The carburetor has been implemented on a 79cc 4 stroke portable gasoline generator for the purposes of illustrating its effect in reducing emissions, engine deposits and improving fuel economy without re-jetting the carburetor. This method of carburetion dynamically tunes the venturi effect in the carburetor, allowing for air density, fuel viscosity and fuel type compensation for optimal AFR. Modified and stock generators were tested at various power levels, elevations and temperatures to simulate operational environments. The improvements in emissions and fuel consumption will be presented. In addition, the system has been designed as a bolt-on, low cost alternative to an EFI method of complying with emissions regulations for existing small engine applications.
Recommended Content
Topic
Citation
Simmons, T. and Markoski, L., "Innovative Carburetor Design with Dynamic Air to Fuel Ratio (AFR) Control for Improved Fuel Economy and Reduced Emissions," SAE Technical Paper 2017-32-0003, 2017, https://doi.org/10.4271/2017-32-0003.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 | ||
| Unnamed Dataset 7 | ||
| Unnamed Dataset 8 |
Also In
References
- Consumer Product Safety Commission Safety Standard for Portable Generators 16 CFR Part 1241 Docket No. CPSC-2006-0057, RIN 3041-AC36 81 224 November 21 2016 https://www.federalregister.gov/documents/2016/11/21/2016-26962/safety-standard-for-portable-generators May 2017
- Emmerich S.J. , Persily A.K. and Wang L. Modeling and Measuring the Effects of Portable Gasoline Powered Generator Exhaust on Indoor Carbon Monoxide Level (NIST Technical Note 1781) Feb 2013
- Adrian Irimescu , Gabriel Vasiu , Tordai Gavrilă Trif Perfomance and emissions of a small scale generator powered by a spark ignition engine with adaptive fuel injection control Applied Energy 121 15 May 2014
- Hushim Mohd Faisal , Ahmad Jais , Alimin , Batcha Mohd Faizal Mohideen , Mohd Ali Mas Fawzi , Rashid Luqman Abdul Port-Fuel Injection Systgem for Small 4-Stroke Single Cylinder Engine: An Experimental Framework 2nd International Conference on Mechanical and Manufacturing Engineering 2011
- Crypton Equipment Understanding Exhaust Emissions http://www.crypton.co.za/Tto%20know/Emissions/exhaust%20emissions.html Apr. 4 2017
- EMS Emissions Systems Inc. Portable Exhaust Gas Analyzer Operators Manual http://www.emsgas.com/wp-content/uploads/2016/11/5003_live_display_manual.pdf Apr. 4 2017
- Komuro K , Yagisawa K , Akamatsu S , Hayashi A , Ueda M Fuel injection system of air-cooled engines for small displacement motorcycles Proceedings of the SAE paper 2005-32-0035 2005
- Yuki Takano , Katsuhiro , Utsugi , Kazuhiko Sakaguchi , Kenta Onishi Development of Intake Air Pressure Sensorless Fuel Injection System for Small Motorcycles SAE Technical Paper 2011-32-0564 2011 10.4271/2011-32-0564
- Muslima Mohd Taufiq , Hazlina Selamata , Aliminb Ahmad Jais , Rohia Noorfaizah Mohd , Hushimb Mohd Faisal A review on retrofit fuel injection technology for small carburetted motorcycle engines towards lower fuel consumption and cleaner exhaust emission Renewable and Sustainable Energy Reviews 35 July 2014
- Jónsson Bergþór Lár , Garðarsson Garðar Örn , Óskar Pétursson , Hlynsson Sigurður Bjarki , Foley Joseph Timothy Ultrasonic Gasoline Evaporation Transducer -Reduction of Internal Combustion Engine Fuel Consumption using Axiomatic Design Procedia CIRP 34 2015
- Moh’d Abu-Qudais , Asfar K.R , Ramzi Al-Azzam Vaporizing carburetor Engine Performance using Vaporizing Carburetor Energy Conversion and Management 42 6 April 2001
- Allen J. , Ravenhill P. , Smither B. , Hoolahan R. , Farmer G. Low cost electronic fuel injection for 2 and 3 wheeled motorcycles Innovations in Fuel Economy and Sustainable Road Transport 2011
- Environmental Protection Agency Control of Emissions From Nonroad Spark-Ignition Engines and Equipment Final Rule, 40 CFR Parts 9, 60, 80 et al. Oct 8 2008 May 2017
- Hassani A. , Hosseini V. An assessment of gasoline motorcycle emissions performance and understanding their contribution to Tehran air pollution Transportation Research Part D: Transport and Environment 47 Aug. 2016
- Guo , Q. and Liu , B. Simulation and Physical Measurement of Seamless Passenger Airbag Door Deployment SAE Technical Paper 2012-01-0082 2012 10.4271/2012-01-0082
- Kunkel , S. , Zimmer , T. , and Wachtmeister , G. Friction Analysis of Oil Control Rings during Running-In SAE Technical Paper 2011-01-2428 2012 10.4271/2011-01-2428
- Morgan , R. , Scullion , P. , Nix , L. , Kan , C. et al. Injury Risk Investigation of the Small, Rear-seat Occupant in Side Impact SAE Int. J. Passeng. Cars - Mech. Syst. 5 1 61 75 2012 https://doi.org/10.4271/2012-01-0092
- Kimura , Y. and Murakami , M. Analysis of Piston Friction - Effects of Cylinder Bore Temperature Distribution and Oil Temperature SAE Int. J. Fuels Lubr. 5 1 1 6 2012 https://doi.org/10.4271/2011-01-1746
- SAE International Surface Vehicle Recommended Practice Laboratory Measurement of the Composite Vibration Damping Properties of Material on a Supporting Steel Bar SAE Standard J1637 Aug. 2007