Fuel pump module and vehicle residual fuel detector

Details Fuel pump module and vehicle residual fuel detector Fuel pump module and vehicle residual fuel detector

2005-01-18

2005-01-18

Williams, Hezron (Department: 2856)

Measuring and testing

Volumetric content measuring

Reexamination Certificate

active

06843116

ABSTRACT:
A fuel pump module is liquid-tightly mounted in an opening of a vehicle fuel tank. The fuel pump module includes a residual fuel detector provided near the fuel tank. The residual fuel detector includes a diaphragm having a first diaphragm for receiving fuel pressure Pg by a head and atmospheric pressure Po, and a diaphragm portion for receiving atmospheric pressure Po and internal pressure Pi. The residual fuel detector detects the amount of fuel remaining in the fuel tank on the basis of these kinds of pressure Po, Pg and Pi. At the same time, the residual fuel detector detects the in-tank pressure Pt of the fuel tank on the basis of Po and Pi.

REFERENCES:
patent: 5189500 (1993-02-01), Kusunoki
patent: 5245870 (1993-09-01), Hartel et al.
patent: 5338549 (1994-08-01), Hord et al.
patent: 6065452 (2000-05-01), Yoshioka
patent: 6260540 (2001-07-01), Hiraiwa et al.

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