Locking clutch for downhole motor
A locking clutch (200) to selectively transmit torque from a stator (204) of a downhole tool to a rotor (202) of the downhole tool (201) includes at least one locking pawl (208) disposed upon the rotor (202), wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass cente...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English French German |
| Published |
06.12.2017
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A locking clutch (200) to selectively transmit torque from a stator (204) of a downhole tool to a rotor (202) of the downhole tool (201) includes at least one locking pawl (208) disposed upon the rotor (202), wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass center, wherein the at least one locking pawl (208) is biased into an engaged position by a biasing mechanism (214), wherein the at least one locking pawl (208) transmits force from the stator (204) to the rotor (202) along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl (208) into a disengaged position when the rotor (202) is rotated above a disengagement speed. |
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| AbstractList | A locking clutch (200) to selectively transmit torque from a stator (204) of a downhole tool to a rotor (202) of the downhole tool (201) includes at least one locking pawl (208) disposed upon the rotor (202), wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass center, wherein the at least one locking pawl (208) is biased into an engaged position by a biasing mechanism (214), wherein the at least one locking pawl (208) transmits force from the stator (204) to the rotor (202) along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl (208) into a disengaged position when the rotor (202) is rotated above a disengagement speed. |
| Author | Underwood, Lance D Beylotte, James Edmond |
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| Discipline | Medicine Chemistry Sciences |
| DocumentTitleAlternate | Embrayage de verrouillage pour moteur de fonds de puits Sperrkupplung für einen Bohrlochmotor |
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| Notes | Application Number: EP20080155183 |
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| RelatedCompanies | Smith International, Inc |
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| Snippet | A locking clutch (200) to selectively transmit torque from a stator (204) of a downhole tool to a rotor (202) of the downhole tool (201) includes at least one... |
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| SubjectTerms | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| Title | Locking clutch for downhole motor |
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