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US 12,736,095 B1Granted
Transmission assemblies with overrunning clutch and associated systems and methods
AssigneeThe Boeing Company
InventorsCharles B. Powell, Maura C. Wear, Caleb R. Shill, Hon-Wai W. Chun, Gary A. Craig
Life of this patent
Estimating the term…
Abstract
A transmission assembly includes a first shaft, a second shaft, and an overrunning clutch coupled between the first shaft and the second shaft. The second shaft includes a clutch section and an engagement section. The clutch section is coupled to the overrunning clutch. The engagement section is coupled to the clutch section by a crowned spline coupling. The crowned spline coupling isolates displacement of the engagement section relative to the clutch section.
Claims20
A transmission assembly comprising:
- a transmission housing;
- a first shaft;
- a second shaft;
- a second bearing coupled between an engagement section of the second shaft and the transmission housing;
- and
- an overrunning clutch coupled between the first shaft and the second shaft,
- wherein:
- the second shaft comprises:
- a clutch section coupled to the overrunning clutch;
- and
- the engagement section coupled to the clutch section by a flexible coupling;
- the flexible coupling isolates displacement of the engagement section relative to the clutch section;
- and
- the second bearing has a radial clearance sufficient for the engagement section of the second shaft to pivot relative to the transmission housing about a pivot axis.
11 more elements
A system comprising:
- a transmission housing;
- a power input;
- input shaft coupled to the power input;
- an output shaft comprising:
- a clutch section;
- and
- an engagement section coupled to the clutch section by a flexible coupling;
- a second bearing coupled between the engagement section of the output shaft and the transmission housing;
- an overrunning clutch coupled between the input shaft and the clutch section of the output shaft;
- and
- a main transmission coupled to the output shaft,
- wherein:
- the flexible coupling isolates displacement of the engagement section relative to the clutch section;
- and
- the second bearing has a radial clearance sufficient for the engagement section of the output shaft to pivot relative to the transmission housing about a pivot axis.
12 more elements
A method comprising:
- transmitting torque between a first shaft and a second shaft through an overrunning clutch coupled between the first shaft and the second shaft;
- isolating a displacement of an engagement section of the second shaft relative to a clutch section of the second shaft by a flexible coupling between the engagement section and the clutch section;
- and
- enabling the engagement section of the second shaft to pivot relative to a transmission housing about a pivot axis via a radial clearance of a second bearing coupled between the engagement section of the second shaft and the transmission housing.
1 more element
Dependencies are inferred from the claim text.