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US 8,136,507 B2Granted
Fuel supply system
AssigneeDenso Corporation
InventorMitsuru Nagai
Life of this patent
Estimating the term…
Abstract
A fuel supply system includes a feed pump pumping up fuel in a fuel tank, a filter removing a foreign matter contained in the fuel discharged from the feed pump, and a high-pressure pump pressuring and discharging the fuel toward an internal combustion engine. A fuel pipe introducing the fuel from the filter to the high-pressure pump and a fuel pipe introducing the fuel from the filter to a housing of the high-pressure pump are formed independently of each other.
Claims13
A fuel supply system supplying a fuel in a fuel tank to an internal combustion engine, the fuel supply system comprising:
- a feed pump pumping up the fuel in the fuel tank;
- a filter removing a foreign matter contained in the fuel discharged from the feed pump;
- and
- a high-pressure pump suctioning and pressurizing the fuel filtrated by the filter, the high-pressure pump discharging the pressurized fuel toward the internal combustion engine, wherein
- the high-pressure pump includes a camshaft driven by the internal combustion engine, a cam rotated along with the camshaft, a plunger reciprocated by the cam, a fuel pressurizing chamber in which the fuel is suctioned and pressurized by a reciprocation of the plunger, and a housing accommodating a part of the plunger, the cam, and the camshaft,
- the fuel is supplied from the fuel tank to the feed pump through a first fuel pipe, the fuel is supplied from the feed pump to the filter through a second fuel pipe, the fuel is supplied from the filter to the fuel pressurizing chamber through a third fuel pipe, the fuel is supplied from the filter to the housing through the fourth fuel pipe, and
- the third fuel pipe and the fourth fuel pipe are formed independently of each other.
4 more elements
Dependencies are inferred from the claim text.