| 摘要 |
PROBLEM TO BE SOLVED: To provide a road sweeper capable of jetting a liquid including generated air bubbles to a road surface without using a high-output pump.SOLUTION: A jetting body part of a jetting unit of a road sweeper includes: a liquid feed passage which feeds a liquid toward a jet port positioned at an end on a liquid-feed-directional side, and has a sectional area decrease part partially smaller in sectional area perpendicular to a passage axis than other parts of the liquid feed passage; and an air feed passage which generates air bubbles in the liquid by feeding air toward the sectional area decrease part of the liquid feed passage. The jetting unit includes an air introduction part which introduces the air from outside a casing into the air feed passage. |
