| 摘要 |
The invention refers to a building for testing aircraft engines, particularly of propeller type, and comprising vertical walls and a roof which on a ground surface (2) delimit a closed test hall (3) in which the aircraft (4), the engine or engines (5) of which are to be tested, is adapted to be parked and with air inlet and outlet ducts (6, 7) provided with silencing baffles (8) and extending substantially horizontally forwardly and rearwardly of the parked aircraft (4), respectively, and which have an adjoining inlet and outlet portion (6a, 7a), respectively, which is directed substantially vertically. In order to provide that the airflows in the test hall effectively are taken care of and a laminary and stable airflow might be maintained, it is suggested according to the invention that the air outlet duct (7) has diffusor shape in its portion located closest to the test hall (3). |
