Invention Grant
US08776915B2 Locking clutch for downhole motor 有权
井下电机锁止离合器

Locking clutch for downhole motor
Abstract:
A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl radially between the rotor and the stator and configured to engage at least one recess formed in an outer periphery of the rotor, and a biasing mechanism configured to bias the at least one locking pawl into an engaged position. The at least one locking pawl includes a load path, two pivot axes, and a mass center. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated about one of the two pivot axes above a disengagement speed.
Public/Granted literature
Information query
Patent Agency Ranking
0/0