| 摘要 |
The invention relates to pneumatic control and can be used in gas and oil fields. The control choke has the body containing two tubes on one of them lengthwise passages are arranged, tangential to the tube internal surface, the second tube is connected to a nut connected with a screw. According to the invention the tubes are connected between them with forming an input and an output. The input is made as an axial channel and the output is made as a lengthwise passage, tangential to the tube internal surface. Both tubes are mounted with opportunity of rotating in bearing parts located in the body. In the outlet cavity of the tube there is a plunger, on the stem being mounted a bearing part with opportunity of motion connected with a docking unit arranged as a feed nut with external screw. The invention provides the extension of range temperature control differential throttling gas pressure, as well as design simplification of adjusting inductance choke control mechanism. |
