| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: two-stage jet engine simulator consists of a cylindrical housing accommodating a cylindrical ring cowling simulating the intake flow separation into external and internal stages. The housing head outlines are identical to those of engine nacelle and air intake. The ring cowling front end face accommodates the engine spinner. The housing and ring cowling tail end faces are covered with inclined separation screens arranged with a gap between them. The engine simulator is furnished with two accumulating devices arranged one into another. The outer accumulating device top end face is jointed to the housing, while the inner accumulating device top end faces is linked to the ring cowling. Note here that both lower end faces of the aforesaid devices are covered by detachable covers. The housing head part has a window to allow shooting, the spinner and ring cowling being coated with a dull paint. The invention allows estimating the total amount of foreign objects getting in the jet engine on running on the strip and recording the points where sand particles collide with the simulator inner surface. ^ EFFECT: engine higher efficiency. ^ 5 cl, 8 dwg |
