SEALED DEVICE Russian patent published in 2018 - IPC G01M3/00 

FIELD: machine building.

SUBSTANCE: invention relates to engineering and can be used, for example in testing cavities of aircraft and rocket equipment. Essence: the device comprises body (1) consisting of stationary (5) and removable (6) parts, between them elastomeric seal (19) is placed. From outer end (2) of the housing there is bore (3) communicating with inner cavity (4). Body has fluid connection (14) with channel (15) extending into the internal cavity of bore (3). Cylindrical finger (7) provided with chamfer (17) is mounted in bore (3), and two grooves (12, 13) are provided. Two radial sealing rings (10, 11) are installed in grooves (12, 13) with the possibility of contact with finger (7) along its cylindrical surface. Finger (7) is made up of a composite one – of two parts (8, 9). First finger part (8) is mounted with the possibility of moving up to contact with sealing ring (10). Second finger part (9) is mounted in bore (3) in detachable housing part (6), in contact with sealing ring (11). Finger (7) is mounted with the possibility of axial movement relative to body (1) and locked in two positions: – the original, where channel (15) of the nozzle communicates with inner cavity (4), and – the end, where duct (15) of the nozzle is isolated from internal cavity (4). In bore (3) between first sealing groove (12) and inner cavity (4) there is stop (18) to limit the axial movement of finger (7) in its final position.

EFFECT: technical result: reduction of the dimensions and weight of the sealed device.

1 cl, 2 dwg