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Development of Compact Fuel Pump Module for Motorcycles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 09, 2008 by SAE International in United States
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A compact, low-cost fuel pump module has been developed for use in motorcycles with a small-displacement engine. Various considerations are given to make the module as compact as possible. The pump motor, which is one of the major component parts, is down-sized specifically for applications to small-displacement engines. The pressure regulator uses a simple construction consisting only of a ball and a spring without a diaphragm. Especially noteworthy is that with the volume reduced by approximately 40% from the conventional pressure regulator while using the construction that reduces self-excited vibrations caused by fuel pressure pulsations, the pressure regulator contributes significantly to the down-sizing and cost reduction of the module. Furthermore, the down-sized module remarkably reduces the size of fuel pump mount surface, allowing a modification from the flat-surface sealing to the radial sealing. The pump mount method is changed from the conventional bolt-on to the retainer-slide type for easy assembly and a reduction of number of parts. With all the aforementioned modifications, the cost is reduced by approximately 30% and the mount surface area on the fuel tank is reduced by 40%.
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CitationUeda, M., Akamatsu, S., Torikai, M., Fukuda, M. et al., "Development of Compact Fuel Pump Module for Motorcycles," SAE Technical Paper 2008-32-0039, 2008, https://doi.org/10.4271/2008-32-0039.
- Ujiie, T. Saito, H. Ueda, M. Akamastsu, S. Hayashi, A. Nakano, Y. Development of Fuel Injector and Fuel Pump for a Fuel Injection System to Use in Small Motorcycles SAE Paper 2005-01-0047 2005