Dry-running gas vane pump having a first fluid outlet and a second fluid outlet associated with the pump chamber with the second fluid outlet permanently open to atmosphere without being impeded
US-10995757-B2 · May 4, 2021 · US
Vane gas pump with sliding element trmporaily completely covering the elongated fluid outlet opening
US11261868B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11261868-B2 |
| Application number | US-201716481489-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2017 |
| Priority date | Feb 1, 2017 |
| Publication date | Mar 1, 2022 |
| Grant date | Mar 1, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A vane type gas pump for a compressible fluid. The vane-type gas pump includes a pump housing which forms a pump chamber in which a pump rotor with at least one slidable sliding element is rotatably mounted. At least one fluid inlet opening and at least one elongated fluid outlet opening are dedicated to the pump chamber. The at least one slidable sliding element has a tangential width. The at least one elongated fluid outlet opening has a tangential width. The tangential width of the at least one slidable sliding element at least corresponds to the tangential width of the at least one elongated fluid outlet opening so that the at least one slidable sliding element temporarily completely covers the at least one elongated fluid outlet opening.
First claim
Opening claim text (preview).
What is claimed is: 1. A vane gas pump for a compressible fluid, the vane gas pump comprising: a pump housing which is configured to form a pump chamber in which a pump rotor comprising at least one slidable sliding element is rotatably mounted, at least one fluid inlet opening and at least one elongated fluid outlet opening being dedicated to the pump chamber, wherein, the at least one slidable sliding element comprises a tangential width, the at least one elongated fluid outlet opening comprises a tangential width, the tangential width of the at least one slidable sliding element at least corresponds to the tangential width of the at least one elongated fluid outlet opening so that the at least one slidable sliding element temporarily completely covers the at least one elongated fluid outlet opening the pump chamber, when viewed from a rotational direction, comprises the at least one elongated fluid outlet opening as a first fluid outlet opening and as a second fluid outlet opening, each of the first fluid outlet opening and the second fluid outlet opening are dedicated to the pump chamber, a check valve is dedicated to the first fluid outlet opening, and no valve is dedicated to the second fluid outlet opening. 2. The vane gas pump as recited in claim 1 , wherein the tangential width of the at least one slidable sliding element is larger than the tangential width of the at least one elongated fluid outlet opening. 3. The vane gas pump as recited in claim 1 , wherein, the at least one elongated fluid outlet opening further comprises a length, and the tangential width of the at least one elongated fluid outlet opening is constant over the length. 4. The vane gas pump as recited in claim 3 , wherein, the pump chamber is configured to have a width, and the length of the at least one elongated fluid outlet opening corresponds with the width in a longitudinal direction of the at least one slidable sliding element. 5. The vane gas pump as recited in claim 1 , wherein the first fluid outlet opening is provided as a longitudinal hole which is oriented in a longitudinal direction of the at least one slidable sliding element. 6. The vane gas pump as recited in claim 1 , wherein the pump housing comprises a thrust washer, a stroke ring, and a bottom element which define the pump chamber. 7. The vane gas pump as recited in claim 6 , wherein, the at least one fluid inlet opening is arranged at the bottom element, and the at least one elongated fluid outlet opening is arranged at the thrust washer.
Assignees
Inventors
Classifications
the inner and outer member being in contact along more than one line or surface · CPC title
- F04C18/344Primary
with vanes reciprocating with respect to the inner member · CPC title
- F04C29/12Primary
Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title
Casings or housings · CPC title
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Frequently asked questions
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- What does patent US11261868B2 cover?
- A vane type gas pump for a compressible fluid. The vane-type gas pump includes a pump housing which forms a pump chamber in which a pump rotor with at least one slidable sliding element is rotatably mounted. At least one fluid inlet opening and at least one elongated fluid outlet opening are dedicated to the pump chamber. The at least one slidable sliding element has a tangential width. The at …
- Who is the assignee on this patent?
- Pierburg Pump Technology Gmbh
- What technology area does this patent fall under?
- Primary CPC classification F04C18/344. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 01 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).