| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel pumping device that can reliably prevent the generation of fuel vapor, and to provide a fuel supply system. <P>SOLUTION: The fuel pumping device includes: a pump body 11 where a fuel inlet 10a and a fuel outlet 11c are formed; a pressurizing pump mechanism 20 that has a plunger 12 forming a fuel pressurization chamber 15 therein; a plurality of valve elements 16, 17, 19 that include an inlet valve 16 and an outlet valve 17; an introduction check valve 30 that allows fuel into a low-pressure fuel passage 11a and regulates the back-flow at the downstream side from the fuel inlet 10a and at the upstream side from the inlet valve 16; and a fuel reservoir 13 that configures part of the low-pressure fuel passage 11a inside the pump body 11 to reserve the fuel introduced through the introduction check valve 30. <P>COPYRIGHT: (C)2013,JPO&INPIT |
