| 摘要 |
FIELD: machine building.SUBSTANCE: limiter contains movable shaft, made with possibility of movement to both sides in axial direction, and rotation during work to rotate the drive shaft of the actuator for the valve driving. The brake disk is installed on the movable shaft. The first friction device is located at the first side from the brake disk. The second friction device is located at the second side. Contact between the brake disk and first or second friction devices stops the engine rotating the movable shaft. The limiter also contains casing and regulating system to regulate position of the first friction device and/or second friction device relatively the brake disk. The valve drive contains the limiter. The valve block contains the valve and valve drive.EFFECT: reduced size of the device, and valve stress.16 cl, 3 dwg |
