CN211692582U - Vortex end sealing structure of mixed flow turbocharger - Google Patents
Vortex end sealing structure of mixed flow turbocharger Download PDFInfo
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- CN211692582U CN211692582U CN202020294160.2U CN202020294160U CN211692582U CN 211692582 U CN211692582 U CN 211692582U CN 202020294160 U CN202020294160 U CN 202020294160U CN 211692582 U CN211692582 U CN 211692582U
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- gas inlet
- mixed flow
- annular groove
- sealing gasket
- threaded
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Abstract
The utility model discloses a mixed flow turbo charger whirlpool end seal structure prevents that the gas from leaking. The utility model provides a mixed flow turbo charger whirlpool end seal structure, includes gas inlet casing, bearing housing, on gas inlet casing and the bearing housing complex outer peripheral face, be equipped with annular groove along circumference, the tank bottom of annular groove is equipped with seal gasket, on bearing housing and the gas inlet casing complex inner peripheral face, be equipped with annular arch along circumference, in annular arch embedding annular groove, extrusion seal gasket, seal gasket compressive deformation form sealed effect.
Description
Technical Field
The utility model relates to a turbo charger technical field especially relates to a mixed flow turbo charger whirlpool end seal structure.
Background
The turbocharger is widely applied to the marine diesel engine, and the power density and the economy of the marine diesel engine are improved. The small end of the bearing shell is sequentially provided with the nozzle ring, the heat insulation wall and the gas inlet shell, the nozzle ring, the heat insulation wall and the gas inlet shell are extruded and sealed through matching surfaces, but the turbine end of the supercharger is through-flow high-temperature and high-pressure gas, the parts can deform in the using process, gaps are generated on the matching surfaces after disassembly and assembly, gas leakage is caused, a diesel engine cabin is polluted, and the turbine efficiency is reduced. Therefore, in order to reduce the gas leakage and improve the turbine efficiency, the design of the vortex end sealing structure of the mixed flow turbocharger is the key point for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a mixed flow turbo charger whirlpool end seal structure, prevent that the gas from leaking.
The purpose of the utility model is realized like this:
the utility model provides a mixed flow turbo charger whirlpool end seal structure, includes gas inlet casing, bearing housing, on gas inlet casing and the bearing housing complex outer peripheral face, be equipped with annular groove along circumference, the tank bottom of annular groove is equipped with seal gasket, on bearing housing and the gas inlet casing complex inner peripheral face, be equipped with annular arch along circumference, in annular arch embedding annular groove, extrusion seal gasket, seal gasket compressive deformation form sealed effect.
Preferably, the sealing gasket is made of an elastic material.
Preferably, the notch of the annular groove is provided with a limiting bevel edge for limiting the sealing gasket and preventing the sealing gasket from being separated from the annular groove.
Preferably, the gas inlet device further comprises a pressure plate, wherein the pressure plate is pressed on the outer peripheral surfaces of the gas inlet shell and the bearing shell, and the pressure plate is fixed on the gas inlet shell through a threaded fastener.
Preferably, the pressure plate is provided with a positioning hole, the middle part of the threaded fastener is a smooth shaft section, the two ends of the threaded fastener are threaded sections, the smooth shaft section is in clearance fit with the positioning hole, one threaded section at one end is in threaded fit with the gas inlet casing, and the other threaded section at the other end is in threaded fit with the nut, so that the pressure plate is locked.
Since the technical scheme is used, the utility model discloses strengthen the sealed effect between gas inlet casing and the bearing housing, reduce the gas and leak, improve turbine efficiency.
Drawings
Fig. 1 is a schematic structural diagram (removing the sealing gasket) of the present invention.
Reference numerals
In the attached drawing, 1-a gas inlet shell, 2-a bearing shell, 3-a nozzle ring, 4-a heat insulation wall, 5 are limit bevel edges, 6-an installation position of a sealing gasket, 7-an annular bulge, 8-a threaded fastener and 9-a pressure plate.
Detailed Description
Referring to fig. 1, the vortex end sealing structure of the mixed flow turbocharger comprises a gas inlet casing 1 and a bearing casing 2, wherein an annular groove is formed in the peripheral surface, matched with the bearing casing 2, of the gas inlet casing 1 along the circumferential direction, and a sealing gasket is arranged at the bottom of the annular groove and made of an elastic material. Prevent that seal gasket from deviating from the annular groove. The gas inlet housing comprises a bearing shell 2, a gas inlet shell 1, a sealing gasket, a groove opening and a sealing groove, wherein the inner circumferential surface of the bearing shell 2 matched with the gas inlet shell 1 is provided with an annular bulge 7 along the circumferential direction, the annular bulge 7 is embedded into the annular groove to extrude the sealing gasket, the sealing gasket deforms under pressure to form a sealing effect, one side of the groove opening of the annular groove is provided with a limiting bevel edge 5 for limiting the sealing gasket, and the other side of the groove opening of the annular groove.
The utility model discloses still include clamp plate 9, clamp plate 9 presses on the outer peripheral face of gas air inlet shell 1, bearing housing 2, clamp plate 9 passes through threaded fastener 8 to be fixed on gas air inlet shell 1. The pressure plate 9 is provided with a positioning hole, the middle part of the threaded fastener 8 is a smooth shaft section, the two ends of the threaded fastener are threaded sections, the smooth shaft section is in clearance fit with the positioning hole, one threaded section at one end is in threaded fit with the gas inlet casing 1, and the other threaded section at the other end is in threaded fit with a nut, so that the pressure plate 9 is locked.
The remaining related structures, driving methods, etc. of the present patent application are the same as those of the previous patent application (application No.: CN201811547948.3) of the applicant.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a mixed flow turbo charger whirlpool end seal structure, includes gas inlet casing, bearing housing, its characterized in that: the gas inlet shell is characterized in that an annular groove is formed in the circumferential direction of the outer circumferential face matched with the bearing shell, a sealing gasket is arranged at the bottom of the annular groove, an annular protrusion is arranged in the circumferential direction of the inner circumferential face matched with the bearing shell, the annular protrusion is embedded into the annular groove, the sealing gasket is extruded, and the sealing gasket is deformed under pressure to form a sealing effect.
2. The scroll end sealing structure of a mixed flow turbocharger according to claim 1, wherein: the sealing gasket is made of elastic materials.
3. The scroll end sealing structure of a mixed flow turbocharger according to claim 1, wherein: the notch of the annular groove is provided with a limiting bevel edge for limiting the sealing gasket and preventing the sealing gasket from being separated from the annular groove.
4. The scroll end sealing structure of a mixed flow turbocharger according to claim 1, wherein: the gas compressor further comprises a pressing plate, wherein the pressing plate is pressed on the outer peripheral surfaces of the gas inlet shell and the bearing shell, and the pressing plate is fixed on the gas inlet shell through a threaded fastener.
5. The scroll end sealing structure of a mixed flow turbocharger according to claim 4, wherein: the gas inlet cover is characterized in that the pressing plate is provided with a positioning hole, the middle part of the threaded fastener is a smooth shaft section, the two ends of the threaded fastener are threaded sections, the smooth shaft section is in clearance fit with the positioning hole, one threaded section at one end is in threaded fit with the gas inlet shell, and the other threaded section at the other end is in fit with the nut, so that the pressing plate is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020294160.2U CN211692582U (en) | 2020-03-11 | 2020-03-11 | Vortex end sealing structure of mixed flow turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020294160.2U CN211692582U (en) | 2020-03-11 | 2020-03-11 | Vortex end sealing structure of mixed flow turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692582U true CN211692582U (en) | 2020-10-16 |
Family
ID=72780388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020294160.2U Active CN211692582U (en) | 2020-03-11 | 2020-03-11 | Vortex end sealing structure of mixed flow turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692582U (en) |
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2020
- 2020-03-11 CN CN202020294160.2U patent/CN211692582U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yang Inventor after: He Fenglin Inventor after: Peng Zhengjun Inventor after: Zhou Li Inventor after: Chen Shifan Inventor after: Wang Zhengchuan Inventor after: He Xiaojun Inventor before: Liu Yang Inventor before: He Fenglin Inventor before: Peng Zhengjun Inventor before: Zhou Li Inventor before: Chen Shifan Inventor before: Wang Zhengchuan Inventor before: He Xiaojun |