| 摘要 |
PCT No. PCT/CH86/00132 Sec. 371 Date May 19, 1987 Sec. 102(e) Date May 19, 1987 PCT Filed Sep. 19, 1986 PCT Pub. No. WO87/01770 PCT Pub. Date Mar. 26, 1987.A device for creating a pressure difference in the flow of a fluid which may be a liquid or a gas and a number of technical applications. The fluid medium is fed along the longitudinal axis of a double cone, consisting of two coaxial hollow cones linked by their smallest faces. At the narrowest point of the double cone a depression occurs in the fluid flow which is made accessible to the outside by means of a lateral connection piece. Compared with a conventional venturi the present double cone offers increased efficiency owing to its special shape, which is defined by geometric parameters. The high efficiency of the double cone, which can be further improved by a special embodiment, makes the device suitable for a number of technical applications. |
