| 摘要 |
PURPOSE: A fuel jet pump with a sub housing unit of an improved structure is provided to have the little axial line torsion of a core flowing passage, including a nozzle housing unit, and to reduce the possibilities of a fatigue fracture on a core joining surface of the housing units due to the accumulated impact on a poppet. CONSTITUTION: A fuel jet pump with a sub housing unit (20) of an improved structure includes a main housing unit (10), a driving nozzle (50), and a nozzle housing unit (30). The main housing unit forms an inlet, a mixing chamber, and a dispersing unit. The driving nozzle is arranged in an internal space of the main housing unit. The nozzle housing unit fixes and supports the driving nozzle. The sub housing unit is joined to the main housing unit while fixing and supporting the nozzle housing unit. The nozzle housing unit and the driving nozzle are joined and fixed to the joining surface of the nozzle housing unit inside the sub housing unit without being in contact with the inner surface of the main housing unit, thereby being joined to or separated from the main housing unit by only joining the sub housing unit to the main housing unit or separating the sub housing unit from the main housing unit. |
