Pumps – Expansible chamber type – Having pulsation dampening fluid receiving space
Patent
1998-04-15
2000-05-09
Walberg, Teresa
Pumps
Expansible chamber type
Having pulsation dampening fluid receiving space
417309, 417311, 417541, 417542, 123446, 123450, 123506, 138 30, F04B 1100
Patent
active
060595477
ABSTRACT:
A cylinder injection high-pressure fuel pump permits reduction in size and cost thereof and it is also capable of securely absorbing high-frequency pulsations. The cylinder injection high-pressure fuel pump (200) has: a casing (1) in which an inlet passage (2) for taking fuel in and a discharge passage (35) for discharging the fuel are formed; a cylinder (30) formed in the casing (1); a fuel pressurizing chamber (32) formed in a part of the cylinder (30); and a plunger (31) disposed in the cylinder (30) such that it may reciprocate therein. As the plunger (31) reciprocates, the fuel is taken into the fuel pressurizing chamber (32) through the inlet passage (2) and pressurized therein, then the pressurized fuel is discharged through the discharge passage (35) and forcibly fed into a fuel injector of a cylinder injection type engine. The high-pressure fuel pump (200) is equipped with: a capacity chamber (44) formed by enlarging a part of the inlet passage (2); and a sealed vessel (42) which is disposed in the capacity chamber (44), which has a gas hermetically sealed therein, and which changes the volume thereof according to a change in the pressure of the capacity chamber (44).
REFERENCES:
patent: 4201522 (1980-05-01), Toyota et al.
patent: 4378774 (1983-04-01), Kato
patent: 4523612 (1985-06-01), Kuklo
patent: 4591321 (1986-05-01), Devaux
patent: 4708116 (1987-11-01), Gaa et al.
patent: 4870939 (1989-10-01), Ishikawa et al.
patent: 5257606 (1993-11-01), Willman et al.
patent: 5318001 (1994-06-01), Djordjievic
patent: 5353754 (1994-10-01), Wissmann et al.
Konishi Keiichi
Onishi Yoshihiko
Fastovsky L.
Mitsubishi Denki & Kabushiki Kaisha
Walberg Teresa
LandOfFree
Cylinder injection high-pressure fuel pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cylinder injection high-pressure fuel pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder injection high-pressure fuel pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1058260