| 摘要 |
1486689 Ejectors SRC LABORATORIES Inc 15 July 1975 [1 Aug 1974] 29593/75 Heading F1E In an ejector the throat 18 is formed by a resilient ring 17 which is deformable to vary the cross-sectional area of the throat. In the embodiment shown the ring is disposed between a fixed inlet member 15 and a movable outlet member 16 which has a surface 21 exposed to the ambient pressure and a surface 22 exposed to the induced fluid-pressure whereby the member 16 may compress the ring 18 to reduce the area as the differential pressure increases. The ring may be hollow. In other embodiments a hollow ring is disposed between fixed inlet and outlet members and the interior may be open to atmosphere, connected to a source of pressure fluid or be sealed. The ring may be of elliptical cross-section and the inner wall thickness may be reduced Fig. 6 (not shown). |
