Rotary pump comprising a lubricating groove in the sealing stay
US-10578101-B2 · Mar 3, 2020 · US
Rotary pump with supporting pockets
US11353020B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11353020-B2 |
| Application number | US-201916291486-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 4, 2019 |
| Priority date | Mar 6, 2018 |
| Publication date | Jun 7, 2022 |
| Grant date | Jun 7, 2022 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A rotary pump, including: a housing featuring a delivery space which includes an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the rotary pump; an inner rotor which is arranged in the delivery space; an outer rotor which is arranged in the delivery space and forms delivery cells with the inner rotor, wherein an outer circumferential wall of the outer rotor is mounted in a sliding manner on an inner circumferential wall of the delivery space, wherein the inner circumferential wall of the delivery space and/or the outer circumferential wall of the outer rotor comprises at least one pocket.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotary pump, comprising: a housing featuring a delivery space which comprises an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the rotary pump; an inner rotor which is arranged in the delivery space; an outer rotor which is arranged in the delivery space and forms delivery cells with the inner rotor, wherein an outer circumferential wall of the outer rotor is mounted in a sliding manner on an inner circumferential wall of the delivery space, wherein the inner circumferential wall of the delivery space and/or the outer circumferential wall of the outer rotor comprises at least one pocket, wherein an axial extension of the at least one pocket is smaller than an axial length of the outer rotor and the at least one pocket has only one closed axial end, and wherein the at least one pocket is separated from the inlet and the outlet for the fluid. 2. The rotary pump according to claim 1 , wherein the at least one pocket is open on an axial end facing a lid or a bottom which delimits the delivery space axially. 3. The rotary pump according to claim 1 , wherein the housing comprises a cup-shaped housing part forming the inner circumferential wall and a bottom of the delivery space of the rotary pump, and wherein the at least one pocket is formed in the inner circumferential wall of the cup-shaped housing part. 4. The rotary pump according to claim 1 , wherein the at least one pocket comprises a plurality of pockets. 5. The rotary pump according to claim 1 , wherein the at least one pocket is formed in the inner circumferential wall of the delivery space. 6. The rotary pump according to claim 1 , wherein the one closed axial end is a closed axial front end. 7. The rotary pump according to claim 1 , wherein the at least one pocket is arranged in an area radially outward from the outlet and/or the inlet. 8. The rotary pump according to claim 1 , comprising an electric drive.
Assignees
Inventors
Classifications
Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors · CPC title
Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00 (of pumps specially adapted for elastic fluids F04C18/00 - F04C29/00) · CPC title
Lubrication (of machines or engines in general F01M) · CPC title
Carter · CPC title
specially adapted for stopping, starting, idling or no-load operation · CPC title
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Frequently asked questions
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- What does patent US11353020B2 cover?
- A rotary pump, including: a housing featuring a delivery space which includes an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the rotary pump; an inner rotor which is arranged in the delivery space; an outer rotor which is arranged in the delivery space and forms delivery cells with the inner rotor, wherein an outer circumferential wal…
- Who is the assignee on this patent?
- Shw Automotive Gmbh
- What technology area does this patent fall under?
- Primary CPC classification F04C2/102. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 07 2022 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).