CN210977614U - Heat insulation sleeve with pressure relief hole - Google Patents
Heat insulation sleeve with pressure relief hole Download PDFInfo
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- CN210977614U CN210977614U CN201921412048.8U CN201921412048U CN210977614U CN 210977614 U CN210977614 U CN 210977614U CN 201921412048 U CN201921412048 U CN 201921412048U CN 210977614 U CN210977614 U CN 210977614U
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- heat insulating
- insulating sleeve
- outside
- heat insulation
- pressure
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Abstract
The utility model discloses a take heat insulating sleeve in pressure release hole, the heat insulating sleeve is established at the sealed space that bearing body and turbine sealing ring formed outside, and the turbine rotor axle is located the outside of heat insulating sleeve, the axle center trompil of heat insulating sleeve, a serial communication port, there are a plurality of pressure release holes on the circumference of heat insulating sleeve, the pressure release hole will gas outgoing in the sealed space. The design of the utility model can keep the air flow inside and outside the heat insulation sleeve, ensure the balance of the pressure inside and outside the heat insulation sleeve, greatly reduce the temperature and pressure at the vortex end sealing ring, and prolong the service life of the supercharger; the use requirement of the engine with higher and higher strengthening degree is met, and the use reliability of the supercharger is further improved.
Description
Technical Field
The utility model relates to an engine turbo charger technical field, concretely relates to take radiation shield in pressure release hole.
Background
With the increasing prominence of environmental problems and the shortage of energy resources, turbochargers constitute an indispensable component of engines. The turbocharger fully utilizes heat energy, kinetic energy and pressure energy contained in high-temperature waste gas discharged by the exhaust pipe to blow the turbine to rotate at a high speed, so that the impeller of the gas compressor on the same rotating shaft is driven to rotate at a high speed, the density of air entering a cylinder of an engine is increased, the air inflow of the engine is increased, the power of the engine is improved, the fuel consumption rate is reduced, the waste gas pollution is reduced, the emission level is reduced, and the turbocharger has the effects of energy conservation and environmental protection. Meanwhile, the application of the turbocharger is an important means for recovering the power of the engine in the plateau area.
Due to the continuous upgrading of national emission regulations, the strengthening degree of an engine is higher and higher, the energy contained in exhaust gas is higher and higher, the heat load of the engine borne by a supercharger is higher and higher, and in addition, the conventional structure can not meet the requirements to a great extent due to frequent exhaust braking in the transportation process of a vehicle and the like. At present, when a common supercharger is used, particularly when the pressure and the temperature of exhaust gas are high, especially when exhaust braking is carried out, high-temperature exhaust gas enters a closed space formed by a heat insulation sleeve, a bearing body and a sealing ring from the back of a turbine rotor wheel through a middle hole of the heat insulation sleeve, and the pressure of an oil cavity of the bearing body is lower than the pressure of the exhaust gas, so that the vortex end of the supercharger has the risk of air cross, the risk of organic oil coking and carbon deposition near a rotor oil throwing groove and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects of the prior art, an object of the utility model is to provide a take radiation shield in pressure release hole.
In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:
the utility model provides a take heat insulating sleeve in pressure release hole, the heat insulating sleeve is established at the bearing body outside with the confined space that the turbine sealing ring formed, and the turbine rotor axle is located the outside of heat insulating sleeve, the axle center trompil of heat insulating sleeve, wherein, there are a plurality of pressure release holes on the circumference of heat insulating sleeve, the pressure release hole will gas outgoing in the confined space.
The beneficial effects of the utility model reside in that:
the design of the utility model can keep the air flow inside and outside the heat insulation sleeve, ensure the balance of the pressure inside and outside the heat insulation sleeve, greatly reduce the temperature and pressure at the vortex end sealing ring, and prolong the service life of the supercharger; the use requirement of the engine with higher and higher strengthening degree is met, and the use reliability of the supercharger is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a partially enlarged schematic view of the prior art.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a partially enlarged schematic view of the present invention.
Detailed Description
The structure and the working principle of the present invention are further explained with the attached drawings as follows:
as shown in fig. 1,2,
in the prior art, to assemble a conventional thermal sleeve supercharger assembly structure, the conventional thermal sleeve supercharger assembly structure mainly includes a turbine casing 200, a turbine rotor 230, a thermal sleeve 100, a turbine end sealing ring 220 and a bearing body 210.
When the supercharger normally operates, the space formed by the heat insulation sleeve 100, the vortex end sealing ring 220 and the bearing body 210 is filled with high-temperature and high-pressure waste gas, and the vortex end sealing ring 220 has large air leakage, so that the risk of coking and carbon deposition of engine oil nearby the position is caused.
To ameliorate this problem, the applicant has modified the existing design by active research,
as shown in fig. 3 and 4, in the heat insulating jacket 100 with the pressure relief hole 110, the heat insulating jacket 100 is fitted around a sealed space 200a formed by combining the bearing body 210 and the turbine seal ring 220 in the turbine box 200, and at the other end 200b of the turbine box 200, the turbine rotor 230 is axially disposed on the outer side 111 of the heat insulating jacket 110, and the axial center 100a of the heat insulating jacket 100 is opened with a hole 112.
With particular emphasis on FIG. 4, the perimeter 100b of the sleeve 100 has a plurality of relief holes 110.
Part of high-temperature and high-pressure waste gas between the turbine rotor 230 and the heat insulation sleeve 110 enters the heat insulation sleeve 110 through the middle hole 112 of the heat insulation sleeve 110 and enters a sealing space 200a formed by combining the bearing body 210 and the turbine sealing ring 220, and then flows back to the turbine box 200 through the pressure relief holes 110 formed in the circumference of the heat insulation sleeve 110, so that when the supercharger operates in a high-temperature and high-pressure environment, the flow of gas inside and outside the heat insulation sleeve 110 is better kept, the balance of the pressure inside and outside the heat insulation sleeve 110 is ensured, the temperature and the pressure at the vortex end sealing ring 220 are greatly reduced, and the working safety and the service life of the supercharger are improved.
Because of possessing the above structure, the utility model has the advantages that:
the circumference of the heat insulation sleeve is provided with the plurality of pressure relief holes, so that gas inside and outside the heat insulation sleeve flows, pressure balance inside and outside the heat insulation sleeve is kept, the temperature and pressure of the vortex end sealing ring are reduced, and the service life of the supercharger is prolonged.
Claims (1)
1. The utility model provides a take heat insulating sleeve in pressure release hole, the heat insulating sleeve is established at the bearing body outside with the confined space that the turbine sealing ring formed, and the turbine rotor axle is located the outside of heat insulating sleeve, the axle center trompil of heat insulating sleeve, its characterized in that, there are a plurality of pressure release holes on the circumference of heat insulating sleeve, the pressure release hole will gas escape in the confined space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412048.8U CN210977614U (en) | 2019-08-28 | 2019-08-28 | Heat insulation sleeve with pressure relief hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412048.8U CN210977614U (en) | 2019-08-28 | 2019-08-28 | Heat insulation sleeve with pressure relief hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210977614U true CN210977614U (en) | 2020-07-10 |
Family
ID=71424000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921412048.8U Active CN210977614U (en) | 2019-08-28 | 2019-08-28 | Heat insulation sleeve with pressure relief hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210977614U (en) |
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2019
- 2019-08-28 CN CN201921412048.8U patent/CN210977614U/en active Active
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