CN2913681Y - Inwardly retracting type seal ring - Google Patents
Inwardly retracting type seal ring Download PDFInfo
- Publication number
- CN2913681Y CN2913681Y CN 200620091778 CN200620091778U CN2913681Y CN 2913681 Y CN2913681 Y CN 2913681Y CN 200620091778 CN200620091778 CN 200620091778 CN 200620091778 U CN200620091778 U CN 200620091778U CN 2913681 Y CN2913681 Y CN 2913681Y
- Authority
- CN
- China
- Prior art keywords
- seal ring
- stator
- type seal
- utility
- telescopic type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a seal ring for vane pumps, specifically an inward-retractable seal ring special for stator of vane pump. The utility model comprises a vane pump stator seal ring, a circular groove formed at a stator position to be sealed between the stator and rotor of the vane pump and positioned closely to the internal diameter of a high-pressure end surface, and at least one inward-retractable seal ring having an axial notch at the edge of the groove. Compared with the prior art, the utility model has the advantages that the seal ring employs inward-retractable seal ring made of fluoroplastic, so that the groove edge retracts inwards upon the impact of a high pressure fluid flowing toward the internal diameter, to seal the clearance between the stator and rotor and thus to reduce the seal leakage, increase the pump efficiency and reduce the operation cost.
Description
Technical field:
The utility model relates to a kind of vane pump seal ring, is the inside telescopic type seal ring of blade pump stator seal ring first-selection.
Background technique:
Sealing technique is widely used in all kinds of vane pump products, for improving vane pump efficient, energy saving had once been brought into play positive effect, still, along with more and more higher to vane pump efficient and requirements of saving energy, seal ring in the past causes the vane pump decrease in efficiency because the existence in gap always has certain leakage, for these reasons, vane pump seal ring in the past has further improved necessity.
The model utility content:
The utility model provides a kind of rational in infrastructure at the technical problem that the seal ring prior art exists, and the high-pressure liquid that is subjected to flowing to internal diameter inwardly shrinks the inside telescopic type seal ring in gap between sealing stator and the rotor when impacting.Because it has adopted the very low fluoroplastic of friction factor to manufacture, and surface of contact is very little, thus little with the frictional loss of rotor, can obviously improve vane pump efficient, reduce operating cost.
The technological scheme of the present utility model purpose is made up of the blade pump stator seal ring, its described inside telescopic type seal ring high pressure end face has an end face circular groove near inner radius, and trough rim has one at least and helps the axial cut-outs that it evenly inwardly shrinks.
Described inside telescopic type seal ring internal surface has one and helps the internal surface circular groove that trough rim inwardly shrinks near the high voltage terminal place.
Described inside telescopic type seal ring is to be made by fluoroplastic.
The utility model compared with prior art owing to need sealing part to adopt inside telescopic type seal ring between blade pump stator and rotor, can make its leakage rate reduce significantly, has saved the energy, has improved pump efficiency, has reduced operating cost.
Description of drawings
Fig. 1 is the utility model master TV structure schematic representation.
Fig. 2 is Fig. 1 left side TV structure schematic representation.
Among the figure: end face circular groove 1, internal surface circular groove 2, axial cut-outs 3, trough rim 4.
Embodiment
Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, as shown in Figure 1, have end face circular groove 1 at the inside telescopic type seal ring of fluoroplastic high pressure end face near inner radius, the trough rim 4 of circular groove 1 has one at least and helps the axial cut-outs 3 that it evenly inwardly shrinks, and internal surface has one near high voltage terminal and helps the internal surface circular groove 2 that trough rim 4 inwardly shrinks.
Described inside telescopic type seal ring, when high voltage terminal was subjected to flowing to the high-pressure liquid impact of internal diameter, trough rim 4 can inwardly shrink, and sealing and gap between rotor have reduced the leakage at seal ring place.
Claims (3)
1, inside telescopic type seal ring, form by the blade pump stator seal ring, it is characterized in that described inside telescopic type seal ring high pressure end face has an end face circular groove (1) near inner radius, trough rim (4) has one at least and helps the axial cut-outs (3) that it evenly inwardly shrinks.
2, inside telescopic type seal ring according to claim 1 is characterized in that described internal surface near the high voltage terminal place, has one and helps the internal surface circular groove (2) that trough rim (4) inwardly shrinks.
3, inside telescopic type seal ring according to claim 1 is characterized in that described seal ring is to be formed by the very low fluoroplastic manufacturing of friction factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091778 CN2913681Y (en) | 2006-06-28 | 2006-06-28 | Inwardly retracting type seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091778 CN2913681Y (en) | 2006-06-28 | 2006-06-28 | Inwardly retracting type seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913681Y true CN2913681Y (en) | 2007-06-20 |
Family
ID=38168280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091778 Expired - Fee Related CN2913681Y (en) | 2006-06-28 | 2006-06-28 | Inwardly retracting type seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913681Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104484B (en) * | 2011-11-11 | 2015-10-28 | 施韦比施冶金厂汽车有限公司 | There is the rotary pump of the sealing of improvement |
-
2006
- 2006-06-28 CN CN 200620091778 patent/CN2913681Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104484B (en) * | 2011-11-11 | 2015-10-28 | 施韦比施冶金厂汽车有限公司 | There is the rotary pump of the sealing of improvement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 |