| 摘要 |
A method for creating weightlessness of a container on a bench of freefall and an apparatus for implementing the method can be used in test equipment. Essence of the invention consists in creation during free-fall of a container of thrust force equal in magnitude and opposite directional force of drag of the container due to supply of a gas-reactive jet acting along the longitudinal axis of the container and use of a device for implementation of the method, wherein the container is equipped with a high pressure cylinder, a pressure reducer, an electro-pneumatic valve, a nozzle unit and a hydraulic cylinder divided by a piston into two cavities interconnected by a conduit, in which a throttling device is mounted, and a rod one side of which ends by a profiled needle passing through the critical cross-section of the nozzle unit and the other one is connected to the piston of the hydraulic cylinder, wherein the profiled needle is detachable. Technical result: creation of weightlessness of container on the bench of freefall during bench testing of intake and innertank devices of fuel tanks of aircraft. |
