| 摘要 |
A jet pump includes a power fluid inlet, a pumped fluid inlet having a conduit therein, a fluid outlet and a downstream structure of generally frustoconical shape having a small end adjacent the pumped fluid inlet conduit, a large end downstream of the small end and a central passage. In several embodiments, the downstream structure is a series of washer like rings of increasing size. In other embodiments, the downstream structure is a solid body. Several embodiments include an upstream structure having a central power fluid inlet conduit sealed relative to the pump housing having a disc thereon downstream of the pumped fluid inlet. The disc provides a series of passages in the form of notches in the disc periphery or openings through the disc body.
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