Aircraft brake and cooling methods therefor
US-2017227079-A1 · Aug 10, 2017 · US
Wet brake
US2018073586A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018073586-A1 |
| Application number | US-201715703475-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 13, 2017 |
| Priority date | Sep 15, 2016 |
| Publication date | Mar 15, 2018 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A wet brake includes a housing, a rotator, a plurality of plates, a plurality of discs, and a piston. The rotator is rotatably disposed in the housing and cooperates with the housing to form therebetween a brake chamber into which cooling oil is forced to flow. The plates are disposed in the brake chamber and axially movably engaged with the housing. The discs are disposed alternatively with the plates in the brake chamber and axially movably engaged with the rotator. The piston is configured to push the plates and the discs. The housing has a cooling oil inlet and a cooling oil outlet that communicate with an inner peripheral region and an outer peripheral region of the brake chamber, respectively. An oil collecting passage is formed adjacent to an open end of the cooling oil outlet on a brake chamber side to communicate with the brake chamber and continues circumferentially.
First claim
Opening claim text (preview).
What is claimed is: 1 . A wet brake comprising: a housing; a rotator rotatably disposed in the housing and cooperating with the housing to form therebetween a brake chamber into which cooling oil is forced to flow; a plurality of plates disposed in the brake chamber and axially movably engaged with the housing; a plurality of discs disposed alternatively with the plurality of plates in the brake chamber and axially movably engaged with the rotator; and a piston configured to push the plates and the discs, wherein the housing has a cooling oil inlet that communicates with an inner peripheral region of the brake chamber and a cooling oil outlet that communicates with an outer peripheral region of the brake chamber, and an oil collecting passage is formed adjacent to an open end of the cooling oil outlet on a brake chamber side to communicate with the brake chamber and continues circumferentially. 2 . The wet brake according to claim 1 , wherein an outer passage is formed extending axially in an inner surface of the housing and/or through outer peripheries of the plates to communicate with the oil collecting passage. 3 . A wet brake comprising: a housing; a rotator rotatably disposed in the housing and cooperating with the housing to form therebetween a brake chamber into which cooling oil is forced to flow; a plurality of plates disposed in the brake chamber and axially movably engaged with the housing; a plurality of discs disposed alternatively with the plurality of plates in the brake chamber and axially movably engaged with the rotator; and a piston configured to push the plates and the discs, wherein the housing has a cooling oil inlet that communicates with an inner peripheral region of the brake chamber and a cooling oil outlet that communicates with an outer peripheral region of the brake chamber, and an outer passage is formed extending axially in an inner surface of the housing and/or through outer peripheries of the plates to permit the flow of the cooling oil from the outer peripheral region of the brake chamber. 4 . The wet brake according to claim 3 , wherein an oil collecting passage is formed adjacent to an open end of the cooling oil outlet on a brake chamber side to communicate with the brake chamber and continues circumferentially, and the oil collecting passage communicates with the outer passage. 5 . The wet brake according to claim 2 , wherein the outer passage is arranged radially outward of an outer periphery of each disc. 6 . The wet brake according to claim 2 , wherein the outer passage is formed by a groove formed in the housing and cutouts formed in the respective plates.
Assignees
Inventors
Classifications
Internal cooling channels · CPC title
characterised by means for cooling · CPC title
External cooling ribs · CPC title
actuated by a fluid-pressure device arranged in or one the brake · CPC title
acting on a piston-type actuator, e.g. for liquid pressure · CPC title
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Frequently asked questions
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- What does patent US2018073586A1 cover?
- A wet brake includes a housing, a rotator, a plurality of plates, a plurality of discs, and a piston. The rotator is rotatably disposed in the housing and cooperates with the housing to form therebetween a brake chamber into which cooling oil is forced to flow. The plates are disposed in the brake chamber and axially movably engaged with the housing. The discs are disposed alternatively with th…
- Who is the assignee on this patent?
- Toyota Jidoshokki Kk
- What technology area does this patent fall under?
- Primary CPC classification F16D65/853. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Mar 15 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).