Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2005-08-02
2005-08-02
Lo, Weilun (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S497000, C123S516000, C123S179170
Reexamination Certificate
active
06923159
ABSTRACT:
A diesel engine comprises a high-pressure pump (5) driven by an engine (E) to supply fuel in a fuel tank (2) to a common rail (3), an electric priming pump (13) provided in a fuel passage (15) extending from the fuel tank (2) to the high-pressure pump (5), and a control device (10) to control the electric priming pump (13). The control device (10) drives the electric priming pump (13) when the engine is started, if a state that the engine rotating speed (Ne) is higher than a predetermined first rotating speed (N1) and the common rail pressure (Cp) is lower than a predetermined first pressure (C1) continues for a period being equal to or more than a predetermined first period (T1). The burden on the operator is mitigated since necessity for the priming operation can be automatically judged.
REFERENCES:
patent: 4984554 (1991-01-01), Ariga et al.
patent: 5213083 (1993-05-01), Glassey
patent: 5263459 (1993-11-01), Talaski
patent: 5839413 (1998-11-01), Krause et al.
patent: 5899193 (1999-05-01), Betz II et al.
patent: 6817343 (2004-11-01), Greco et al.
patent: 2004/0237943 (2004-12-01), Krishnamoorthy et al.
patent: 02-188663 (1990-07-01), None
patent: 02-256869 (1990-10-01), None
patent: 04-043851 (1992-02-01), None
patent: 2568830 (1998-01-01), None
patent: 10-252599 (1998-09-01), None
patent: 11-257177 (1999-09-01), None
Nagata Shigenobu
Narita Kazuyoshi
Sakumoto Koji
Isuzu Motors Limited
Lo Weilun
McCormick Paulding & Huber LLP
LandOfFree
Diesel engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diesel engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diesel engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3502473