The mechanism of autotravamento. This publication refers to a mechanism for autrotravamento (100) to rotate the actuator, which allows rotation of a rotation side while denies the other side. The mechanism (100) including one or more sets of coils (113) possibly separated by a spring (114, 118) and arranged between a housing (101) and a part of the connection of the valve (102).The connection of the valve (102) can be configured with a format that presses a roller (113) of each set against the inner surface of the wall of the housing (101) and cause locking if the mechanism is tried to be twisted to the side of the valve.In addition, the mechanism is provided with a connection part of the engine (105), configured so that press the coils (113) out of the locking position and release the lock before the valve (102) and start the torque transfer.A spring (114, 118) may have a stiffness and a length to provide an output which is sufficient to maintain the coils (113) in position, but not enough to cause considerable friction between the rollers (113) and the housing (101), and thereby enable the engine to rotate the and Ngrenagem through the mechanism of autotravamento (11).With the loss of power and torque for small autotravamento mechanism (100). In a place of springs (114, 118), the rollers may be separated and held in position by a handle (117) on the part of the connection of the valve (102).
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