CN204691832U - The shell construction of the turbo-charger bearing portion that anti-gas-leak is compact and turbine end - Google Patents
The shell construction of the turbo-charger bearing portion that anti-gas-leak is compact and turbine end Download PDFInfo
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- CN204691832U CN204691832U CN201520314032.9U CN201520314032U CN204691832U CN 204691832 U CN204691832 U CN 204691832U CN 201520314032 U CN201520314032 U CN 201520314032U CN 204691832 U CN204691832 U CN 204691832U
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Abstract
A shell construction for the turbo-charger bearing portion that anti-gas-leak is compact and turbine end, it comprises housing and turbine back shroud, is provided with the bearing bore and turbine chamber that communicate in housing, and it is respectively used to install turbine bearing and turbine; Housing is provided with the turbine communicated with turbine chamber and installs entrance inside one end of turbine chamber, and the size of entrance installed by turbine and the radial dimension of turbine adapts, and it is passage turbine being fit into turbine chamber; The profile size of turbine back shroud and turbine are installed entrance and are adapted, and are provided with toxic emission hole in the middle of it, and ingress installed by the turbine that turbine back shroud is arranged on housing, and toxic emission hole can form suitable waste gas outlet.Housing is integral type structure, compared to the structure that existing bearing support is connected with turbine shroud, there is not the risk of gas leakage.
Description
Technical field
The utility model relates to turbo-charger technical field, the turbo-charger bearing portion that particularly a kind of anti-gas-leak is compact and the shell construction of turbine end.
Background technique
Small sized turbocharger is applied to light car more, existing small sized turbocharger bearing support and turbine shroud be two independently parts, its two kinds of common Placements are as shown in Figure 4,5.Fig. 4 middle (center) bearing body 3 and housing 4 adopt pressing plate 5 and bolt 6 fastening; Fig. 5 middle (center) bearing body 7 and housing 8 adopt clip 9 fastening.
Adopting the small sized turbocharger assembling difficulty of structure shown in Fig. 4 or Fig. 5 comparatively large, inevitably there is gap in the faying surface of bearing support and turbine shroud, namely there is gas leakage risk.And delivery temperature high (particularly petrol engine during engine operation, most high exhaust temperature is more than 900 DEG C), pressure is large, also be subject to the pulse of engine exhaust air-flow simultaneously, pressurized machine is run at high operating temperatures, turbine shroud and bearing support all can produce deformation, cause both faying surface places to be out of shape, further aggravation gas leakage risk.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, and the shell construction of the turbo-charger bearing portion providing a kind of anti-gas-leak compact and turbine end.It solving existing small sized turbocharger assembling difficulty large, there is the problem of risk of leaking gas in the faying surface of bearing support and turbine shroud.
The technical solution of the utility model is: the shell construction of the turbo-charger bearing portion that a kind of anti-gas-leak is compact and turbine end, and it comprises housing and turbine back shroud, is provided with the bearing bore and turbine chamber that communicate in housing, and it is respectively used to install turbine bearing and turbine; Housing is provided with the turbine communicated with turbine chamber and installs entrance inside one end of turbine chamber, and the size of entrance installed by turbine and the radial dimension of turbine adapts, and it is passage turbine being fit into turbine chamber; The profile size of turbine back shroud and turbine are installed entrance and are adapted, and are provided with toxic emission hole in the middle of it, and ingress installed by the turbine that turbine back shroud is arranged on housing.
The further technological scheme of the utility model is: be positioned at turbine and install the outer edge place of entrance and be provided with the annular table terrace matched with turbine back shroud in the exhaust steam passage of housing.
The utility model further technological scheme is: turbine back shroud ringwise, its toxic emission hole is in meeting the streamlined of housing flow channel shape, turbine back shroud one end is provided with the annular boss extended radially, and is arranged on the annular table terrace of housing by annular boss.
The utility model further technological scheme is: turbine back shroud is fixedly connected with by heat-resisting internal spline bolt with between housing.
The further technological scheme of the utility model is: housing is the integral structure of casting.
The utility model compared with prior art tool has the following advantages:
1, housing is integral type structure, compared to the structure that existing bearing support is connected with turbine shroud, there is not the risk of gas leakage.
2, assemble more convenient, compared to the structure that existing bearing support is connected with turbine shroud, attachment face does not between the two exist, the layout of the oil inlet and oil return pipe connecting flange faces of be more convenient for pressurized machine and motor.
Below in conjunction with figure and embodiment, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model and the assembling relationship figure with other parts in small sized turbocharger;
Fig. 2 is the structural representation of turbine back shroud;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is a kind of bearing support of existing small sized turbocharger and the linkage structure schematic diagram of turbine shroud;
Fig. 5 is the bearing support of another kind of existing small sized turbocharger and the linkage structure schematic diagram of turbine shroud.
Embodiment
Embodiment 1:
As shown in Figures 1 to 3, the shell construction of the turbo-charger bearing portion that a kind of anti-gas-leak is compact and turbine end, comprises housing 1 and turbine back shroud 2, is provided with the bearing bore 11 and turbine chamber 12 that communicate in housing 1, and it is respectively used to install turbine bearing 4 and turbine 5; Housing 1 is provided with the turbine communicated with turbine chamber and installs entrance 13 inside one end of turbine chamber 12, and the size of entrance 13 installed by turbine and the radial dimension of turbine 5 adapts, and it is passage turbine 5 being fit into turbine chamber 12.The profile size of turbine back shroud 2 and turbine are installed entrance 13 and are adapted, and are provided with toxic emission hole 21 in the middle of it, and entrance 13 place installed by the turbine that turbine back shroud 2 is arranged on housing 1.
Be positioned at turbine and the outer edge place of entrance 13 is installed is provided with the annular table terrace 14 matched with turbine back shroud 2 in the exhaust steam passage of housing 1.Ringwise, its toxic emission hole 21, in meeting the streamlined of housing flow channel shape, can form suitable waste gas outlet to turbine back shroud 2.Turbine back shroud 2 one end is provided with the annular boss 22 extended radially, and is arranged on the annular table terrace 14 of housing 1 by annular boss 22, is fixedly connected with by heat-resisting internal spline bolt 3 with between housing 1.
Housing 1 is generally adopt casting, i.e. integral structure.
Claims (6)
1. the turbo-charger bearing portion that an anti-gas-leak is compact and the shell construction of turbine end, it is characterized in that: it comprises housing (1) and turbine back shroud (2), be provided with the bearing bore (11) and turbine chamber (12) that communicate in housing (1), it is respectively used to install turbine bearing (4) and turbine (5); Housing (1) is provided with the turbine communicated with turbine chamber and installs entrance (13) inside one end of turbine chamber (12), the radial dimension of the size and turbine (5) that entrance (13) installed by turbine adapts, and it is passage turbine (5) being fit into turbine chamber (12); The profile size of turbine back shroud (2) and turbine are installed entrance (13) and are adapted, be provided with toxic emission hole (21) in the middle of it, entrance (13) place installed by the turbine that turbine back shroud (2) is arranged on housing (1).
2. the turbo-charger bearing portion that anti-gas-leak as claimed in claim 1 is compact and the shell construction of turbine end, is characterized in that: in the exhaust steam passage of housing (1) and the outer edge place being positioned at turbine installation entrance (13) is provided with the annular table terrace (14) matched with turbine back shroud (2).
3. the turbo-charger bearing portion that anti-gas-leak as claimed in claim 2 is compact and the shell construction of turbine end, it is characterized in that: turbine back shroud (2) ringwise, its toxic emission hole (21) is in meeting the streamlined of housing flow channel shape, turbine back shroud (2) one end is provided with the annular boss (22) extended radially, and is arranged on the annular table terrace (14) of housing (1) by annular boss (22).
4. the turbo-charger bearing portion that anti-gas-leak is compact as claimed any one in claims 1 to 3 and the shell construction of turbine end, be is characterized in that: be fixedly connected with by heat-resisting internal spline bolt (3) between turbine back shroud (2) with housing (1).
5. the turbo-charger bearing portion that anti-gas-leak is compact as claimed any one in claims 1 to 3 and the shell construction of turbine end, is characterized in that: the integral structure that housing (1) is casting.
6. the turbo-charger bearing portion that anti-gas-leak as claimed in claim 4 is compact and the shell construction of turbine end, is characterized in that: the integral structure that housing (1) is casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314032.9U CN204691832U (en) | 2015-05-15 | 2015-05-15 | The shell construction of the turbo-charger bearing portion that anti-gas-leak is compact and turbine end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314032.9U CN204691832U (en) | 2015-05-15 | 2015-05-15 | The shell construction of the turbo-charger bearing portion that anti-gas-leak is compact and turbine end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691832U true CN204691832U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520314032.9U Active CN204691832U (en) | 2015-05-15 | 2015-05-15 | The shell construction of the turbo-charger bearing portion that anti-gas-leak is compact and turbine end |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847423A (en) * | 2015-05-15 | 2015-08-19 | 湖南天雁机械有限责任公司 | Anti-gas leakage compact turbo-supercharger bearing part and turbine end shell structure |
| CN105909371A (en) * | 2016-06-30 | 2016-08-31 | 奕森科技（上海）有限公司 | Integrated type automotive mixed flow turbosuperchager |
| CN106014605A (en) * | 2016-06-30 | 2016-10-12 | 奕森科技（上海）有限公司 | Mixed-flow turbosupercharger for integration vehicle |
-
2015
- 2015-05-15 CN CN201520314032.9U patent/CN204691832U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847423A (en) * | 2015-05-15 | 2015-08-19 | 湖南天雁机械有限责任公司 | Anti-gas leakage compact turbo-supercharger bearing part and turbine end shell structure |
| CN105909371A (en) * | 2016-06-30 | 2016-08-31 | 奕森科技（上海）有限公司 | Integrated type automotive mixed flow turbosuperchager |
| CN106014605A (en) * | 2016-06-30 | 2016-10-12 | 奕森科技（上海）有限公司 | Mixed-flow turbosupercharger for integration vehicle |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |