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US 6,253,735 B1Granted
Fuel feeding device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorMasayasu Miyajima
Life of this patent
Estimating the term…
Abstract
In order to reduce load placed on an engine by suppressing loss of the engine power, the fuel feeding device is arranged to comprise a check valve and a two-port connecting valve and further comprises a branch passage for connecting a portion between the check valve and a deliver side of a pumping element with a low pressure and high pressure passage so that the branch passage is opened through operation of the two-port connecting valve when amount of fuel required by the engine is small.
Claims4
A fuel feeding device comprising:
- multiple pumping elements for pressurizing fuel to a predetermined pressure and for delivering said pressurized fuel;
- regulating means for regulating pressure in high and low pressure fuel passages;
- draining means for draining said high and low pressure fuel passages after operation of said regulating means;
- and
- means for selectively enabling and disabling the function of at least one of said pumping elements depending on the amount of fuel required by an engine said means comprising a two-port connecting valve and a check valve.
2 more elements
Dependencies are inferred from the claim text.