Pump device for supplying fuel from a tank to an internal combus

Details Pump device for supplying fuel from a tank to an internal combus Pump device for supplying fuel from a tank to an internal combus

1995-01-11

1996-11-05

Miller, Carl S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123510, 417206, F02B 7700, F02M 3704

Patent

active

055712436

ABSTRACT:
A device presenting a high-pressure pump, and a low-pressure pump connected pstream from the first. To prevent damage in the event of a fault on the device, the connection between the low- and high-pressure pumps is provided with a cutoff valve which is closed in the event of a fault on the low-pressure pump to prevent the intake of solid particles by the high-pressure pump. Also, in the event of a fault on one of the injectors, detected on the basis of the operating conditions of the engine, the low-pressure pump is disconnected to prevent seriously damaging the engine.

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patent: 4915592 (1990-04-01), Mishinuma et al.
patent: 4925196 (1990-05-01), Green
patent: 4995355 (1991-02-01), Cowley
patent: 5365906 (1994-11-01), Deweedt

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