| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel supply unit capable of suppressing noises caused by pulsating a pressure of a fuel gas during operation of an injector.SOLUTION: A hydrogen supply unit 24 comprises: an introduction block 40 including an introduction passage 52 for introducing a hydrogen gas; and at least one injector 42 connected to the introduction passage 52 for adjusting a flow rate and a pressure of the hydrogen gas. In the hydrogen supply unit, the pressure of the hydrogen gas is reduced by emitting the hydrogen gas that is introduced into the introduction passage 52, to the outside of the introduction passage 52 by the injector 42. The introduction passage 52 includes: a plurality of expansion chambers 56; a communication path 58 communicating the neighboring expansion chambers 56; and a fitting hole 60 which is communicated to the expansion chamber 56 and in which the injector 42 is disposed. A cross-sectional area of the communication path 58 is smaller than a cross-sectional area of the expansion chamber 56.SELECTED DRAWING: Figure 3 |
