An Advanced Fuel Supply Unit for Single Cylinder Gas Engines

Paper #:
  • 2014-32-0040

Published:
  • 2014-11-11
DOI:
  • 10.4271/2014-32-0040
Citation:
Walters, J. and Brun, F., "An Advanced Fuel Supply Unit for Single Cylinder Gas Engines," SAE Technical Paper 2014-32-0040, 2014, https://doi.org/10.4271/2014-32-0040.
Affiliated:
Pages:
6
Abstract:
Stringent emissions legislation is being applied to small motorcycles and scooters around the world. This is forcing, gradually, the replacement of carburetors by electronic fuel injection (EFI) systems. The integration of this new technology creates new constraints on the engine and also on the vehicle. This study will provide an overview of these constraints and also technical solutions to reduce the impact on engine and vehicle. A special focus will be done on the fuel system, where the development of an advanced technology will be discussed in detail. This technology marks a break with the standard automotive fuel system architecture in order to fulfill the specific requirements of scooters and small motorcycles: low size, low weight, low energy demand, as well as simple integration. The discussion will disclose: the advantages and drawbacks of different fuel system architectures, the detailed description of the technology selected to achieve the requirements, the modelling approach used for the sizing and optimization of the design, and finally the performance achieved on the test bench.
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