Dual actuation ball contour synchronizing clutch
US-2017114839-A1 · Apr 27, 2017 · US
Clutch with synchronizer and locking mechanism
US11008113B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11008113-B2 |
| Application number | US-201816035409-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2018 |
| Priority date | Jul 23, 2017 |
| Publication date | May 18, 2021 |
| Grant date | May 18, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A clutch that has a synchronizer for matching a rotational velocity of a drive input with a rotational velocity of a driven output prior to engagement of a locking mechanism.
First claim
Opening claim text (preview).
What is claimed is: 1. A clutch, comprising: a synchronizer, comprising: a first friction element coupled to a drive input, the first friction element including a first friction surface; a second friction element coupled to a driven output, the second friction element including a second friction surface; and a first piston configured to cause relative translation between the first friction element and the second friction element; and a locking mechanism, comprising: a plunger coupled to the driven output; and a second piston configured to cause relative translation between the driven output and the drive input; wherein the first friction surface and the second friction surface of the synchronizer are separated from transmission fluid by a first rotary seal. 2. The clutch of claim 1 , wherein the second friction element is configured to translate relative to the driven output. 3. The clutch of claim 1 , wherein the driven output is rotatably coupled to the plunger. 4. The clutch of claim 1 , wherein the first friction element comprises an inner cone, the first friction surface comprises a frusto-conical inner friction surface, the second friction element comprises an outer cone, and the second friction surface comprises a frusto-conical outer friction surface. 5. The clutch of claim 1 , further comprising: a second rotary seal separating the first friction surface and the second friction surface from the transmission fluid. 6. The clutch of claim 5 , further comprising: a third rotary seal separating the first friction surface and the second friction surface from the transmission fluid. 7. The clutch of claim 6 , wherein the first rotary seal is located between a case and the drive input, the second rotary seal is located between the drive input and the driven output, and the third rotary seal is located between the driven output and the plunger. 8. The clutch of claim 1 , wherein the drive input and the driven output have complementary splines configured to engage each other in response to translation of the driven output caused by the second piston. 9. The clutch of claim 1 , wherein the driven output is coupled for common rotation with a transmission element, but the driven output may translate relative to the transmission element.
Assignees
Inventors
Classifications
- B64C11/28Primary
Collapsible or foldable blades · CPC title
the clutch having interengaging clutch members · CPC title
Clutches with hydraulic actuation · CPC title
- B64D35/00Primary
Transmitting power from power plants to propellers or rotors; Arrangements of transmissions · CPC title
Rotor drives · CPC title
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Frequently asked questions
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- What does patent US11008113B2 cover?
- A clutch that has a synchronizer for matching a rotational velocity of a drive input with a rotational velocity of a driven output prior to engagement of a locking mechanism.
- Who is the assignee on this patent?
- Bell Helicopter Textron Inc, Textron Innovations Inc
- What technology area does this patent fall under?
- Primary CPC classification B64C11/28. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 18 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).