Measuring and testing – Internal combustion engine or related engine system or... – Compression
Patent
1994-03-03
1996-03-19
Chilcot, Richard
Measuring and testing
Internal combustion engine or related engine system or...
Compression
123479, F02M 3900
Patent
active
054995388
ABSTRACT:
The present invention is directed to an on-board diagnostic system for detecting a malfunctioning fuel pump in an internal combustion engine during engine operation. Pressure sensor means are provided for sensing fuel pressure in the fuel supply line and for generating corresponding pressure signals. Signal processing means receive and process the pressure signals from the pressure sensor means. An output signal is generated by the signal processing means if pressure signals are determined to correspond to a defective fuel pump Such output signal can be stored, used to alert an engine operator to an impaired fuel pump and/or provided to a fuel injector control means for adjusting fuel flow.
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patent: 4790277 (1988-12-01), Schechter
Chui Granger K.
Glidewell John M.
Yang Woong-Chul
Abolins Peter
Chilcot Richard
Ford Motor Company
May Roger L.
McCall Eric S.
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