Fuel Pumps - 21st Century Technology

Paper #:
  • 982053

Published:
  • 1998-09-14
Citation:
Kunkel, R., "Fuel Pumps - 21st Century Technology," SAE Technical Paper 982053, 1998, https://doi.org/10.4271/982053.
Pages:
6
Abstract:
A fuel pump has been developed that uses Twenty-first century technology for four-stroke two-cylinder EFI engines. Fuel system feedback, frequency modulation, and an entirely new drive motor design is part of this technology.Some of the torque required to drive the current automotive pumps is absorbed in the driving method of the gerotor elements. It is a documented fact that the centrifugal churning of fuel by the motor armature uses 1a at 12vdc. The regulating valve requires a minimal flow [9gph] over engine demand in order to operate the regulating valve with some stability.Because of high energy demand, it is necessary to submerge the pump in the fuel for cooling purposes. This renders the pump useless for applications where it must run without fuel for a short time.Heat is transferred to the fuel from the armature and by the dumping of excess fuel over the regulating valve.
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