CN202031701U - Turbocharger turbine case with rack brake variable geometrical control device - Google Patents
Turbocharger turbine case with rack brake variable geometrical control device Download PDFInfo
- Publication number
- CN202031701U CN202031701U CN2011200873705U CN201120087370U CN202031701U CN 202031701 U CN202031701 U CN 202031701U CN 2011200873705 U CN2011200873705 U CN 2011200873705U CN 201120087370 U CN201120087370 U CN 201120087370U CN 202031701 U CN202031701 U CN 202031701U
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- ring
- inner ring
- obturator
- motor
- turbine box
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- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241000013987 Colletes Species 0.000 description 1
- 210000003800 Pharynx Anatomy 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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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
Abstract
A turbocharger turbine case with a rack brake variable geometrical control device comprises a turbine case body and a rack type variable geometrical control device. The turbocharger case body is provided with a spiral toothed rod hole and six threaded holes connected with an inner ring. The rack brake variable geometrical control device consists of the inner ring, an obturator ring, a spiral toothed rod, a motor and a motor support. An obturator ring guiding sleeve is arranged at one end of the inner ring, and six sunk screw holes are arranged on an end surface plate of the inner ring. An annular rack is disposed on an outer circle of the one end of the obturator ring. Two threaded holes and two screw holes are arranged on the motor support. The obturator ring is mounted on the obturator ring guiding sleeve of the inner ring, and the inner ring is fixed at an air inlet end of the turbine case via screws. The motor support is fixed on the turbine case via screws, the motor is mounted on the motor support via screws, and the spiral toothed rod is mounted on an output shaft of the motor, penetrates through the spiral toothed rod hole on the turbine case to extend into the turbine case and is meshed with the annular rack on the obturator ring.
Description
Technical field
The utility model relates to turbo-charger technical field, particularly the turbine box on the turbosupercharger.
Background technique
Conventional turbocharger can not provide enough pressure ratios because its flow area can not change when the low engine speed operating mode, and because the response characteristic difference causes motor to quicken the smoke intensity height.For the response characteristic of improving the engine turbine pressurized machine and the pressure ratio of low operating mode, in pressurized machine, adopted the variable-geometry supercharging mode, pressure ratio when the turbine circulation area being regulated with the response characteristic that improves turbosupercharger and low operating mode improves low engine speed torque characteristics and booster response characteristic.Variable-geometry cross section turbine box pressurized machine is a kind of of variable geometry turbocharger, by the control driving mechanism, changes the throat area of runner between turbine blade, thereby plays the effect that control enters the exhaust gas flow of turbine.
Existing variable geometry turbocharger as shown in Figure 10, it comprises turbine box 8, turbine rotor 9, nozzle assembly 10, bearing support 11, back of the body dish 12, compressor impeller 13, compressor volute 14, between turbine box 8 and bearing support 11, collet is housed, turbine rotor 9 is positioned at the outlet port of turbine box 8, turbine box 8 is connected with compressor volute 14 by bearing support 11, and gas compressor blade 13 is taken turns the outlet port that is positioned at compressor volute 14.
When time of engine low speed, driving mechanism drives nozzle assembly 10 motions, reduces the turbine nozzle actual internal area, makes exhaust back pressure and flow velocity increase.When high engine speeds turned round, driving mechanism drove nozzle assembly 10 motions, increases the turbine nozzle actual internal area, reduces exhaust back pressure and flow velocity, reduces charge flow rate.
Existing variable-geometry cross section turbosupercharger, find in the practical application aspect Performance Match, also to come with some shortcomings, modern engine speed is more and more higher, need the scope of coupling also more and more wider, present employed variable-geometry cross section pressurized machine is difficult in the whole service operating mode and all keeps high efficient, also is difficult to all possess good effect and high turbine efficiency in the assurance on a large scale.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of novel turbocharger variable geometry turbine box is provided, it is a tooth bar braking of a design variable-geometry control gear on turbine box, control the flow area of turbine box gas flow by tooth bar braking variable-geometry control gear, improve turbosupercharger response characteristic and pressure ratio, the full operating mode of turbosupercharger and motor is efficiently mated.
The technical solution of the utility model is: a kind of turbocharger turbine case that has tooth bar braking variable-geometry control gear, it comprises turbine box body and tooth bar braking variable-geometry control gear.On the turbine box body, be provided with a spiral ratch hole, six tapped holes that connect inner ring.Tooth bar braking variable-geometry control gear is made up of inner ring, obturator ring, spiral ratch, motor, electric machine support.Be provided with the obturator ring guide sleeve on an end of inner ring, the end plates of inner ring are provided with six sunk screw holes.On the cylindrical of obturator ring one end, be provided with an annular rack.On electric machine support, be provided with two tapped holes and two screw holes.Obturator ring is installed on the obturator ring guide sleeve of inner ring, and inner ring is by the suction port end of screw at turbine box.On turbine box, motor is installed on the electric machine support by screw electric machine support by screw, and the spiral ratch is installed on the output shaft of motor, and the spiral ratch hole of passing on the turbine box stretches in the turbine box, with the annular rack engagement on the obturator ring.
During use, the turbine box that will have tooth bar braking variable-geometry control gear is installed on the pressurized machine, adopts the electronic type control mode to link to each other with ECU, opening and closing by on/off valve control exhaust passage.
The tooth bar braking variable-geometry control gear working principle that the utility model provides is as follows:
One, when time of engine low speed, tooth bar braking variable-geometry control gear is gathered the target value signal that Engine ECU is sent, in time send electrical signal and give motor, driven by motor spiral ratch just changes, the moving obturator ring that is installed on the inner ring obturator ring guide sleeve of spiral ratch rotating band moves forward, obturator ring progressively cuts out the gas flow of turbine box in moving process, gradually reduce the actual internal area of turbine box gas flow, make exhaust back pressure and flow velocity increase, available exhaust energy improves, thereby improve the rotating speed of pressurized machine, increase charge flow rate.
Two, when high engine speeds turns round, tooth bar braking variable-geometry control gear is gathered the target value signal that Engine ECU is sent, in time send electrical signal and give motor, the counter-rotating of driven by motor spiral ratch, the moving obturator ring that is installed on the inner ring obturator ring guide sleeve of spiral ratch rotating band moves backward, and obturator ring is progressively opened the gas flow of turbine box in moving process, progressively increase the actual internal area of turbine box gas flow, reduce exhaust back pressure and flow velocity, reduce charge flow rate.
Three, in other speed range of motor, the angle signal that rack-type variable-geometry control gear is sent according to Engine ECU changes the actual internal area of turbine box gas flow, thereby obtains different boost pressures and charge flow rate.
Turbosupercharger of the present utility model compared with prior art has following characteristics:
1, tooth bar braking variable-geometry control gear is gathered the angle target value signal that Engine ECU is sent, and controls the aperture of turbine box obturator ring by the running of motor.Reduce the turbine nozzle actual internal area when time of engine low speed, make exhaust back pressure and flow velocity increase, available exhaust energy improves, thereby improves the rotating speed of pressurized machine, increases charge flow rate; When high engine speeds turns round, increase the turbine nozzle actual internal area, reduce exhaust back pressure and flow velocity, reduce charge flow rate; In other speed range of motor, the angle signal that the variable-geometry control gear is also sent according to Engine ECU changes the actual internal area of turbine nozzle, thereby obtain different boost pressures and charge flow rate, realize the optimum Match of full operating mode scope intrinsic motivation and pressurized machine, power range is enlarged, and the economical operation scope of high load also enlarges, thereby reaches comprehensive optimization of motor economic performance.
2, turbo charger speed is controlled in the position of opening by tooth bar braking variable-geometry control gear change turbine box obturator ring, when low engine speed is worked, reduce the turbine actual internal area by turning down obturator ring, boost pressure is improved, improve supercharger speed and supercharging pressure ratio to a certain extent, thereby improve the low speed torque of motor; When high engine speeds was worked, obturator ring was opened gradually, and the turbine actual internal area increases, and boost pressure is reduced relatively, solved the excessive problem of supercharging.
3, the variable-geometry cross section turbine box of a kind can use on the turbosupercharger of a plurality of kinds, covers a plurality of engine models, and is simple in structure, control is reliable.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the A-A sectional view in the accompanying drawing 1, and the turbine box gas flow in the accompanying drawing is a closed condition;
Accompanying drawing 3 is similarly the A-A sectional view in the accompanying drawing 1, and the turbine box gas flow in the accompanying drawing is an open mode;
Accompanying drawing 4 is the structural representation of obturator ring;
Accompanying drawing 5 is the B-B sectional view in the accompanying drawing 4;
Accompanying drawing 6 is the structural representation of inner ring;
Accompanying drawing 7 is the C-C sectional view in the accompanying drawing 6;
Accompanying drawing 8 is the structural representation of electric machine support;
Accompanying drawing 9 is the left view in the accompanying drawing 8;
Accompanying drawing 10 is existing variable geometry turbocharger structural representation.
Embodiment
A kind of turbocharger turbine case that has tooth bar braking variable-geometry control gear, it comprises turbine box body 1 and rack-type variable-geometry control gear.On turbine box body 1, be provided with a spiral ratch hole 1-1, six tapped hole 1-2 that connect inner ring.Rack-type variable-geometry control gear is made up of inner ring 4, obturator ring 2, spiral ratch 3, motor 6, electric machine support 7.Be provided with obturator ring guide sleeve 4-1 on an end of inner ring 4, the end plates of inner ring 4 are provided with six sunk screw hole 4-2.On the cylindrical of obturator ring 2 one ends, be provided with annular rack 2-1.On electric machine support 7, be provided with two tapped hole 7-1 and two screw hole 7-1.Obturator ring 2 is installed on the obturator ring guide sleeve 4-1 of inner ring 4, and inner ring 4 is by the suction port end of screw at turbine box.Electric machine support 7 by screw on turbine box, motor 6 is installed on the electric machine support 7 by screw, spiral ratch 3 is installed on the output shaft of motor 6, and the spiral ratch hole 1-1 that passes on the turbine box 1 stretches in the turbine box 1, with the annular rack 2-1 engagement on the obturator ring 2.
Claims (1)
1. one kind has the turbocharger turbine case that tooth bar is braked the variable-geometry control gear, and it is characterized in that: it comprises turbine box body and rack-type variable-geometry control gear; On the turbine box body, be provided with a spiral ratch hole, six tapped holes that connect inner ring; Tooth bar braking variable-geometry control gear is made up of inner ring, obturator ring, spiral ratch, motor, electric machine support; Be provided with the obturator ring guide sleeve on an end of inner ring, the end plates of inner ring are provided with six sunk screw holes; On the cylindrical of obturator ring one end, be provided with an annular rack; On electric machine support, be provided with two tapped holes and two screw holes; Obturator ring is installed on the obturator ring guide sleeve of inner ring, and inner ring is by the suction port end of screw at turbine box; On turbine box, motor is installed on the electric machine support by screw electric machine support by screw, and the spiral ratch is installed on the output shaft of motor, and the spiral ratch hole of passing on the turbine box stretches in the turbine box, with the annular rack engagement on the obturator ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200873705U CN202031701U (en) | 2011-03-29 | 2011-03-29 | Turbocharger turbine case with rack brake variable geometrical control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200873705U CN202031701U (en) | 2011-03-29 | 2011-03-29 | Turbocharger turbine case with rack brake variable geometrical control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031701U true CN202031701U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200873705U Expired - Fee Related CN202031701U (en) | 2011-03-29 | 2011-03-29 | Turbocharger turbine case with rack brake variable geometrical control device |
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| Country | Link |
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| CN (1) | CN202031701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236460A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | Variable geometry turbine shell inlet channel for exhaust-driven turbocharger |
-
2011
- 2011-03-29 CN CN2011200873705U patent/CN202031701U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236460A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | Variable geometry turbine shell inlet channel for exhaust-driven turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20190329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |