CN201080832Y - Variable section worm supercharger - Google Patents
Variable section worm supercharger Download PDFInfo
- Publication number
- CN201080832Y CN201080832Y CNU2007200132203U CN200720013220U CN201080832Y CN 201080832 Y CN201080832 Y CN 201080832Y CN U2007200132203 U CNU2007200132203 U CN U2007200132203U CN 200720013220 U CN200720013220 U CN 200720013220U CN 201080832 Y CN201080832 Y CN 201080832Y
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- CN
- China
- Prior art keywords
- turbine
- air inlet
- nozzle ring
- inlet volute
- gas inlet
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a variable-section turbocharger, wherein the gas inlet channel of a gas inlet turbo shell is designed to be a variable-section round bent shape, a nozzle ring is arranged in the gas inlet turbo shell, the nozzle ring is connected fixedly with nozzle ring blades on an annular bottom plate, uniform contracted channels are formed between the blades, a center hole is arranged at the center of the gas inlet turbo shell, the nozzle ring is arranged between the gas inlet turbo shell and the turbine, the turbine is arranged on the bearing by center shaft, the bearing is arranged at the center hole of the gas inlet turbo shell, the blades of the turbine are connected with turbine frame to form a whole. The utility model has the advantages of smart conception, reasonable design, compact integrated structure, stable and reliable performance, convenient manufacture and installation, integrated efficiency improvement, simple operation, strong practicability and being suitable for automobiles.
Description
Technical field
The utility model relates to the motor car engine pressurized machine, concrete is a kind of variable section worm wheel pressure booster.
Background technique
Rapid development of science and technology, greatly having promoted the high speed development of automotive engineering and automotive industry has become one of important directions of domestic and international internal combustion engine development with regard to the engine charge supercharging technology.Yet, the technology of diesel engine pressurized machine is comparatively ripe at present, and petrol engine is very fast because of its rotating speed, having certain difficulty in the enforcement of pressurized machine reaches surely and has some concrete problems in the real world applications, for instance: the efficient of axial flow blower descends rapidly along with dwindling of physical dimension, if the pressure ratio that improves gas compressor just must improve the rotating speed of pressurized machine, this is implementing to want a series of key problem in technology of corresponding solution, relevant parts and problem of materials, in addition, because the speed of a motor vehicle is fast, the scope of engine charge mass flow rate is broad also, this just requires pressurized machine that the range of flow of broad need be arranged, this is the pressurized machine palpus big problem of using at present to be solved, and the pressurized machine of using now presents incoordinate efficient under high and low rotating speed, in other words just when the slow-speed of revolution efficient on the low side, motor is turned round refuse to strengthen and is made automobile not possess good acceleration performance, the poor reliability of pressurized machine.
Summary of the invention
The purpose of this utility model is that the efficient that exists at the pressurized machine of present use is low, charge flow rate narrow range, some problems such as poor reliability and shortcoming and provide reliable performance, a kind of variable section worm wheel pressure booster that the high charge flow rate scope of efficient is adjustable.
The technological scheme that adopts is:
A kind of variable section worm wheel pressure booster, comprise air inlet volute, nozzle ring, turbine, air outlet channel, the intake duct of described air inlet volute is arranged to the circular bend intake duct of variable cross section, installing one nozzle ring in the air inlet volute, the center of air inlet volute is provided with a center hole, nozzle ring is between air inlet volute and turbine, and turbine is installed on the bearing by central shaft, and bearing is installed in air inlet volute center hole.
Above-mentioned air inlet volute is provided with at least one suction port.
Above-mentioned nozzle ring is a fixedly connected nozzle blade on annular base plate, forms even constricted channel between blade.
Above-mentioned turbine blade adopts the method for precision casting to link into an integrated entity with the wheel bone.
Above-mentioned air outlet channel is arranged on a side of air inlet volute.
The variable-area turbocharger working principle:
Variable-area turbocharger mainly is made up of air inlet volute, nozzle ring, turbine and air outlet channel, see shown in Figure 1, one of effect of air inlet volute is that motor and variable-area turbocharger are coupled together, and variable-area turbocharger is fixed on whole pressurized machine on the engine exhaust pipe by the flange of air inlet volute; Two of the effect of air inlet volute is that the import of turbine case links to each other with engine exhaust pipe, the variable cross section intake duct distributing nozzle ring of the waste gas of motor discharge by the air inlet turbine case, thereby utilizes exhaust energy better.In addition, the air inlet turbine case also plays block bearing.
Because of the air inlet turbine case contacts with high-temp waste gas, generally cast with alloy cast iron, require internal surface bright and clean.Waste gas is through axially discharging behind the turbine.
Between air inlet volute and turbine nozzle ring is housed, nozzle ring is guider again, and waste gas enters impeller through nozzle ring.The annular cascade that nozzle ring is made up of many nozzle vanes and annular base plate forms a uniform constricted channel, as shown in Figure 2 between the blade.One of effect of nozzle ring is leading role, and nozzle blade is evenly distributed on the nozzle ring, because blade has certain established angle in the nozzle ring outlet, this just makes exhaust flow flow into turbine equably by certain direction behind nozzle ring; Another effect is that the potential energy with waste gas is converted to kinetic energy effectively, because the nozzle ring aisle spare is a convergent, and has certain discharge area, this makes the high-temp waste gas with certain pressure of discharging from engine exhaust pipe expand at the nozzle ring interchannel, pressure and temperature descends, and speed increases rapidly, and makes air-flow have certain direction and than even velocity, i.e. loss with minimum enters active wheel at jet expansion.
Nozzle ring is with nozzle blade and the smart casting of base plate or integrally welded.
The effect of turbine is that the kinetic energy and the pressure potential of the high-speed exhaust gas of coming from the nozzle ring outlet are changed into mechanical work.Turbine is the part of high speed rotating under the strong back blast of high temperature, high speed and corrosivity, be heated, stressed, vibrated, corroded the most serious part.
The working principle of turbine when the high-speed exhaust gas from nozzle ring rushes at turbine, just waste gas is forced to the channel change flow direction along the turbine blade bending, at this moment makes turbine rotation acting under action of centrifugal force shown in Fig. 5-6.Turbine blade and wheel bone fine casting method cast solid, the shape of turbine adopts parabola shaped or quadratic curve shape.
The utility model is skillfully constructed, reasonable in design, compact overall structure, stable performance, reliable are made, easy for installation, improve whole efficiency, and be simple to operate, has extremely strong practicability, the automobile that can suit uses.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is vertical cross-sectional schematic of Fig. 1.
Fig. 3 is the utility model nozzle ring schematic representation.
Fig. 4 is the cross-sectional schematic of Fig. 3.
Fig. 5 is the utility model turbine structure schematic representation.
Fig. 6 is the cross-sectional schematic of Fig. 5.
Embodiment
A kind of variable section worm wheel pressure booster, comprise air inlet volute 1, nozzle ring 2, turbine 3, air outlet channel 4, the intake duct 6 of air inlet volute 1 is arranged to the circular bend intake duct 6 of variable cross section, air inlet volute 1 is provided with a suction port 5, installing one nozzle ring 2 in the air inlet volute 1, nozzle ring 2 is fixedly connected nozzle blades 9 on annular base plate 8, forms even constricted channel 12 between nozzle blade 9.Nozzle ring 2 is between air inlet volute 1 and turbine 3, and the center of air inlet volute 1 is provided with a center hole 7, and turbine 3 is installed on the bearing by central shaft, and bearing is installed in the center hole 7 of air inlet volute 1, and the blade 11 of turbine 3 links into an integrated entity with the 10 smart castings of wheel bone.Air outlet channel 4 is arranged on a side of air inlet volute 1.
Claims (5)
1. a variable section worm wheel pressure booster comprises air inlet volute (1), nozzle ring (2), turbine (3), air outlet channel (4), it is characterized in that:
The intake duct (6) of described air inlet volute (1) is arranged to the circular bend intake duct (6) of variable cross section, installing one nozzle ring (2) in the air inlet volute (1), the center of air inlet volute (1) is provided with a center hole (7), nozzle ring (2) is positioned between air inlet volute (1) and the turbine (3), turbine (3) is installed on the bearing by central shaft, and bearing is installed in the center hole (7) of air inlet volute (1).
2. a kind of variable section worm wheel pressure booster according to claim 1 is characterized in that: above-mentioned air inlet volute (1) is provided with at least one suction port (5).
3. a kind of variable section worm wheel pressure booster according to claim 1 is characterized in that: above-mentioned nozzle ring (2) is to go up fixedly connected nozzle blade (9) in annular base plate (8), forms even constricted channel (12) between nozzle blade (9).
4. a kind of variable section worm wheel pressure booster according to claim 1 is characterized in that: the blade (11) of above-mentioned turbine (3) links into an integrated entity with wheel bone (10).
5. a kind of variable section worm wheel pressure booster according to claim 1 is characterized in that: above-mentioned air outlet channel (4) is arranged on a side of air inlet volute (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200132203U CN201080832Y (en) | 2007-07-11 | 2007-07-11 | Variable section worm supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200132203U CN201080832Y (en) | 2007-07-11 | 2007-07-11 | Variable section worm supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080832Y true CN201080832Y (en) | 2008-07-02 |
Family
ID=39614505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200132203U Expired - Fee Related CN201080832Y (en) | 2007-07-11 | 2007-07-11 | Variable section worm supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080832Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865032A (en) * | 2009-04-20 | 2010-10-20 | 博格华纳公司 | Variable geometry turbocharger with simplification of sliding gate and a plurality of spiral cases |
| CN106513188A (en) * | 2016-11-18 | 2017-03-22 | 西北工业大学 | Section-variable flat-hole nozzle |
| CN108266271A (en) * | 2018-03-21 | 2018-07-10 | 孔祥真 | A kind of centrifugal gas power turbine |
| EP4239164A3 (en) * | 2022-03-01 | 2023-09-13 | Garrett Transportation I Inc. | Method for constructing a fixed-vane ring for a nozzle of a turbocharger turbine |
-
2007
- 2007-07-11 CN CNU2007200132203U patent/CN201080832Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865032A (en) * | 2009-04-20 | 2010-10-20 | 博格华纳公司 | Variable geometry turbocharger with simplification of sliding gate and a plurality of spiral cases |
| CN101865032B (en) * | 2009-04-20 | 2014-06-18 | 博格华纳公司 | Simplified variable geometry turbocharger with sliding gate and multiple volutes |
| CN106513188A (en) * | 2016-11-18 | 2017-03-22 | 西北工业大学 | Section-variable flat-hole nozzle |
| CN108266271A (en) * | 2018-03-21 | 2018-07-10 | 孔祥真 | A kind of centrifugal gas power turbine |
| EP4239164A3 (en) * | 2022-03-01 | 2023-09-13 | Garrett Transportation I Inc. | Method for constructing a fixed-vane ring for a nozzle of a turbocharger turbine |
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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: 20080702 |