Pumps – Motor driven – Internal-combustion engine
Patent
1998-08-07
2000-04-11
Jeffery, John A.
Pumps
Motor driven
Internal-combustion engine
123495, F05B 1700, F02M 3704
Patent
active
060481803
ABSTRACT:
A high-pressure fuel supply pump with high performance is capable of securely preventing a cylinder section from seizing up and also permits improved sealing performance to minimize the chance of fuel leakage. The high-pressure fuel supply pump has: a casing (48) having a cylindrical cavity (48a); a sleeve (40) which has a cylinder section (40a) and a fixing section (40c), one end thereof closer to the fixing section (40c) being abutted against the bottom of the cavity (48a); and a piston (53) which is disposed in the cylinder section (40a). The high-pressure fuel supply pump takes in fuel through an intake passage (36) by the reciprocation of the piston (53) into a fuel pressurizing chamber (52) to pressurize it, then discharges the pressurized fuel through a discharge passage (37) to forcibly feed it into a fuel injector of a cylinder injection engine. A cylindrical slit (40d) is provided between the cylinder section (40a) and the fixing section (40c) of the sleeve (40), and the fixing section (40c) is secured by being fastened toward the bottom of a cavity (48a) by a cylindrical fastening member (64) screwed to the cavity (48a).
REFERENCES:
patent: 5567134 (1996-10-01), Inoue
Baba Hidekazu
Ikegami Tatsuya
Konishi Keiichi
Zenmei Keisaku
Jeffery John A.
Mitsubishi Denki & Kabushiki Kaisha
Robinson Daniel
LandOfFree
High-pressure fuel supply 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 High-pressure fuel supply pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-pressure fuel supply pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1172451