Internal-combustion engines – Charge forming device – With fuel pump
Patent
1994-09-09
1997-03-25
Miller, Carl S.
Internal-combustion engines
Charge forming device
With fuel pump
123514, 13711501, 137576, F02M 3704
Patent
active
056134762
ABSTRACT:
An in-tank type fuel pump which can easily be installed and reduces the vibration caused by the fuel pump. The fuel pumped up by a pump part passes through a filter to have foreign matter contained therein removed. Then, the fuel flows from a fuel passage, through an opening part in a cap, into a recessed part and a second fuel passage. The fuel that has flowed into the second fuel passage lifts a check valve and flows into the recessed part. Then, the fuel flows through a third fuel passage to a discharge pipe, and then is guided to the outside of the fuel tank. A ball moves within a large-diameter passage according to the fuel pressure to regulate the fuel pressure required for fuel injection. When the fuel pumping is ceased, the fuel pressure falls to 0, and therefore the ball is forced to contact a valve seat by the spring force of a compression coil spring. Then, the head part of the check valve is forced to contact a valve seat to block the fuel passage. As a result, the residual fuel pressure can be maintained downstream from the recessed part.
REFERENCES:
patent: 4694857 (1987-09-01), Harris
patent: 4953582 (1990-09-01), Kennedy
patent: 5024188 (1991-06-01), Hartke
patent: 5044344 (1991-09-01), Tuckey et al.
patent: 5056492 (1991-10-01), Banse
patent: 5078167 (1992-01-01), Brandt
patent: 5148792 (1992-09-01), Tuckey
patent: 5231967 (1993-08-01), Baltz
patent: 5289810 (1994-03-01), Bauer
patent: 5361742 (1994-11-01), Briggs
Kaga Hideki
Kawano Yasushi
Kobayashi Atsushige
Nakashima Kazushi
Oi Kiyotoshi
Miller Carl S.
Nippondenso Co. Ltd.
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