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Patent Searching and Data


Title:
ELECTRIC FUEL PUMP TESTER AND METHOD
Document Type and Number:
WIPO Patent Application WO/2013/028440
Kind Code:
A3
Abstract:
The system and method for determining the operational condition of an electric fuel pump (16). The test apparatus (22) is configured to perform first, second and third tests. During the first test, a low voltage, low current signal is applied to produce an inductive reflectance from the pump armature winding. During the second test, continuity is assessed in the coil winding circuit. During the third test, a higher power, short duration pulse is applied to create rotational movement of the pump armature for the purpose of detecting mechanical and/or electrical issues not otherwise discerned from the prior tests. An optional fourth test may be conducted in which the pump (16) is run for a short period of time at standard operating power to generate a current waveform. Collected test data is compared to stored reference data sets using a processor contained within the test apparatus (22). If collected test data corresponds within an acceptable threshold range to the reference data, a PASS signal is generated.

Inventors:
MCGAUGHEY ROBERT J (US)
Application Number:
PCT/US2012/051019
Publication Date:
April 18, 2013
Filing Date:
August 16, 2012
Export Citation:
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Assignee:
FEDERAL MOGUL CORP (US)
MCGAUGHEY ROBERT J (US)
International Classes:
G01R31/00; F04B51/00; F04D15/00; G01R31/34; G01R31/72
Foreign References:
US5612629A1997-03-18
US3871797A1975-03-18
US7710121B22010-05-04
US20040230384A12004-11-18
US20040145838A12004-07-29
Attorney, Agent or Firm:
STEARNS, Robert, L. et al. (2600 W. Big Beaver RoadSuite 30, Troy MI, US)
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