Axial hydraulic piston pump
US-10302073-B2 · May 28, 2019 · US
Cradle bearing and cradle bearing support
US11761435B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11761435-B2 |
| Application number | US-202117555586-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2021 |
| Priority date | Dec 21, 2020 |
| Publication date | Sep 19, 2023 |
| Grant date | Sep 19, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate tilt axis, suitable for supporting the swashplate in a housing of a variable hydraulic axial piston unit, wherein the first cradle bearing zone is inclined with respect to the swashplate tilt axis. A variable hydraulic axial piston unit of the swashplate type including a swashplate which is supported rotatable in the housing of the variable hydraulic axial piston unit at a first bearing zone by a tapered bearing and at a second bearing zone by regular cylindrical cradle bearing or a journal bearing whose axis is aligned with the swashplate tilt axis.
First claim
Opening claim text (preview).
What is claimed is: 1. A cradle bearing for supporting a swashplate of a variable hydraulic axial piston unit, wherein the cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race, and wherein an inner shell carrying the tapered inner race shows a tapered inner mounting surface with respect to the bearing axis and/or wherein an outer shell carrying the tapered outer race shows a tapered outer mounting surface with respect to the bearing axis. 2. The cradle bearing according to claim 1 , wherein the cradle bearing is of the sliding bearing type or the hydrostatic bearing type. 3. The cradle bearing according to claim 1 , wherein the cradle bearing is of the roller bearing type and comprises spherical, cylindrical or conical shaped rolling elements. 4. The cradle bearing according to claim 1 , wherein the inner race and the outer race are made of metal, and wherein the inner shell and/or the outer shell are made of plastic or reinforced plastic material. 5. The cradle bearing according to claim 1 , wherein the circumferential length of the inner race is greater than 120 degrees. 6. The cradle bearing according to claim 1 , wherein the circumferential length of the inner race is greater than 140 degrees.
Assignees
Inventors
Classifications
Bearings for swash plates or driving axles · CPC title
Swash plates · CPC title
- F04B1/148Primary
Bearings therefor · CPC title
Details of specific parts of races · CPC title
Pumps with cylinders or pistons · CPC title
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Frequently asked questions
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- What does patent US11761435B2 cover?
- A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate…
- Who is the assignee on this patent?
- Danfoss Power Solutions Gmbh & Co Ohg
- What technology area does this patent fall under?
- Primary CPC classification F04B1/148. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 19 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).