| 摘要 |
The liquid feeding device includes a branched portion at which a fluid is branched into a main flow passage that feeds the fluid from an upstream side to a downstream side and a first flow passage being branched from the main flow passage; a narrow flow passage being provided at a terminal end portion, and has a smaller cross-sectional area than the first flow passage; and a liquid feeding mechanism which feeds the fluid to the main flow passage and the first flow passage, wherein the narrow flow passage suppresses the fluid, being fed from the main flow passage side to the first flow passage using the mechanism in the branched portion, from leaking from first flow passage, quantitatively determines fluid as a first volume by filling the first flow passage, which has the first volume, with the fluid, and feeds the quantitatively determined fluid to the main flow passage. |
