Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-03-16
1995-06-20
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
123514, 12317917, F02M 2704
Patent
active
054253420
ABSTRACT:
An apparatus for injecting fuel into an engine through fuel injectors connected to a fuel tank through a fuel supply passage having a fuel pump provided therein. The apparatus include a first pressure regulator provided in the fuel supply passage between the fuel pump and the fuel injectors for varying the amount of excess fuel returned through a first return passage to the fuel tank to maintain a first predetermined pressure differential across the fuel injectors. The apparatus also includes a second pressure regulator provided in the fuel supply passage downstream of the fuel injectors for varying the amount of excess fuel returned through a second return passage to the fuel tank to maintain a second predetermined pressure differential across the fuel injectors. The second predetermined pressure differential is higher than the first predetermined pressure differential. A control valve is provided in the first return passage. The control valve is normally open and it closes the first return passage to inhibit the pressure regulation of the first pressure regulator under predetermined engine starting conditions.
REFERENCES:
patent: 3614945 (1971-10-01), Shlagmuller
patent: 3614946 (1971-10-01), Staudt
patent: 4156560 (1979-05-01), Chekwich
patent: 4274380 (1981-06-01), de Vulpilliers
patent: 4300509 (1981-11-01), Schfchter
patent: 4562816 (1986-01-01), Dorr
patent: 4800859 (1989-01-01), Sagisaka
patent: 4829964 (1989-05-01), Asayama
patent: 4984554 (1991-01-01), Ariga
patent: 5207203 (1993-05-01), Wagner
Ariga Hironobu
Sato Kazuhiro
Miller Carl S.
Nissan Motor Co,. Ltd.
LandOfFree
Fuel injection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel injection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel injection apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1838919