CN202266306U - Volute casing device of variable geometric pulse air inlet turbine - Google Patents
Volute casing device of variable geometric pulse air inlet turbine Download PDFInfo
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- CN202266306U CN202266306U CN2011203740387U CN201120374038U CN202266306U CN 202266306 U CN202266306 U CN 202266306U CN 2011203740387 U CN2011203740387 U CN 2011203740387U CN 201120374038 U CN201120374038 U CN 201120374038U CN 202266306 U CN202266306 U CN 202266306U
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- flow passage
- spiral case
- air inlet
- inlet
- outer flow
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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
The utility model discloses a volute casing device of a variable geometric pulse air inlet turbine, which comprises a volute casing, wherein an air inlet passage is arranged on the volute casing, an air inlet is arranged at one of the ends of the air inlet passage, and a volute casing air outlet is arranged at the other end of the air inlet passage; the air inlet passage comprises two working flow passages: an internal flow passage comprising a first internal flow passage and a second internal flow passage, and an external flow passage comprising a first external flow passage and a second external flow passage; the air inlet comprises a first volute casing inlet and a second volute casing inlet; the first internal flow passage and the first external flow passage are communicated with the first volute casing inlet and achieve 0-180 DEG semicircular air inlet in the circumferential direction; and the second internal flow passage and the second external flow passage are communicated with the second volute casing inlet and achieve 180-360 DEG semicircular air inlet in the circumferential direction. The volute casing device disclosed by the utility model has the advantages of simple structure, good inheritability and low cost, and is easy and rapid to realize engineering. An air inlet control device in the volute casing device has a simple structure, the control manner is implemented easily, and the reliability is high.
Description
Technical field
The utility model relates to a kind of ram charging turbosupercharger of variable-geometry; Specifically a kind of co-operation through different runners satisfies the spiral case device of the ram charging turbo machine of the variable-geometry that each performance of operating condition of motor requires, and belongs to field of internal combustion engine.
Background technique
In practical engineering application; Separating the air inlet turbine based on the two-chamber half cycle of pulse pressure-charging is a kind of more traditional structural type; The two-chamber half cycle is separated the spiral case of air inlet turbine and is made up of upper runner and two runners of lower flow channel, and the air inlet zone of upper runner is the 0-180 degree, and the air inlet zone of lower flow channel is the 180-360 degree; One 360 degree full admission zone is formed in the air inlet zone of upper runner and lower flow channel, and inlet stream drives the turbine wheel acting through upper and lower runner respectively.Along with the increasingly stringent of Abgasgesetz, require pressurized machine must have higher boost pressure and the adjustable function of exhaust pressure, immobilize and this turbine section is long-pending, therefore can't satisfy the performance requirement of each operating mode of motor.
Based on the long-pending changeless characteristics of this turbine section; At the nozzle location of spiral case rotatable nozzle vane is installed; It is rotary vane type variable cross section turbine; Change the inlet flow area of turbine through the rotation aperture of regulating nozzle vane, control is convenient, but in practical application, still has some defectives:
Motor is under big flow operating mode, and the aperture of nozzle vane increases, and is nearer apart from the turbine blade leading edge, has limited the regulation range that its aperture increases.Motor is under low flow rate condition, and the aperture of nozzle vane is very little, and this moment, the circumferential speed of jet expansion air-flow was high, and turbine becomes action turbine, and the bump loss is bigger, poor reliability; Have, jet expansion is far away apart from impeller eye again, and annulus air-flow is therein interfered each other, has increased flow losses, thereby efficiency of turbocharger is descended.
In addition, the cost of rotary vane type variable-area turbocharger is very high, and this makes many motors producer hang back to its expensive price, cost and age limit the market of this type turbosupercharger.
Therefore hope design a kind of simple in structure, reliability is high, cost is low and under small flow, have the worm frame of the variable-geometry of greater efficiency; To solve the problem of the aspects such as efficient, reliability and price that above-mentioned two kinds of turbine plants exist, satisfy the performance requirement under each operating mode of motor.
The model utility content
The problem that the utility model will solve is can not realize the matched well with the full operating mode of motor in order to overcome the constant cross-section turbosupercharger; And problem such as rotary vane type variable-area turbocharger cost height, poor reliability, efficient be low; Provide that a kind of cost is low, simple in structure, have higher efficient under the reliability high, low speed operating mode; Improve the acting ability of turbine; The time satisfy the negotiability of motor in middle and high speed, avoid the spiral case device of ram charging turbo machine of the variable-geometry of pressurized machine hypervelocity.
In order to address the above problem, the utility model has adopted following technological scheme:
A kind of spiral case device of ram charging turbo machine of variable-geometry comprises spiral case, and said spiral case is provided with air inlet runner, and a wherein end of air inlet runner is provided with suction port, and the other end is provided with the spiral case air outlet, and said air inlet runner comprises two groups of work runners:
-inner flow passage comprises first inner flow passage and second inner flow passage;
-outer flow passage; Comprise first outer flow passage and second outer flow passage;
Suction port comprises first spiral case inlet and second spiral case inlet;
Said first inner flow passage and first outer flow passage are connected with first spiral case inlet and on circumferential direction, realize the half cycle air inlet of 0-180 degree;
Said second inner flow passage and second outer flow passage are connected with second spiral case inlet and on circumferential direction, realize the half cycle air inlet of 180-360 degree.
Below be the further improvement of the utility model to such scheme:
On first outer flow passage, be respectively equipped with air inlet regulating device near the position of second spiral case inlet near the position of first spiral case inlet and second outer flow passage.
Further improve:
Said two air inlet regulating device is positioned at the spiral case homonymy, and air inlet regulating device is realized the distribution to charge flow rate according to the actual conditions of motor.，
The another kind of improvement:
Said two air inlet regulating devices lay respectively at the spiral case both sides, and air inlet regulating device is realized the distribution to charge flow rate according to the actual conditions of motor.
Further improve:
Said air inlet regulating device comprises the valve shaft that is installed in the spiral case; The two ends and the spiral case of valve shaft are rotationally connected respectively; Wherein an end reaches the outside of spiral case and is connected with actuator; Said valve shaft passes first outer flow passage and second outer flow passage, and the position that is positioned at first outer flow passage and second outer flow passage on the valve shaft is separately installed with valve.
Further improve: the position corresponding with valve is provided with the valve cover plate on the said spiral case, valve cover plate and spiral case fixed seal connection.
The opening and closing of actuating mechanism controls valve are regulated the distribution that realizes the turbine charge flow rate through the aperture to valve, thus the co-operation of outer flow passage in realizing.
The another kind of improvement:
The cross section of said first spiral case inlet and second spiral case inlet is a trapezium structure, is up and down to arrange.
The another kind of improvement:
The cross section of said first spiral case inlet and second spiral case inlet is a rectangular configuration, is arranged side by side about being.
The another kind of improvement:
Said first outer flow passage, first inner flow passage, second inner flow passage and second outer flow passage are arranged side by side in the spiral case.
The utility model adopts such scheme, and motor is under the low speed operating mode, and valve is in closed condition; At this moment, inner flow passage is in running order, only organizes the work runner through this by the inlet stream that outlet pipe is discharged; Because this group work runner sectional area is less, has improved the preceding suction pressure of turbine, has improved the available energy in the waste gas; Strengthened the acting ability of turbine, improved the efficient of turbine low speed, satisfied the low-speed performance of motor and reached the purpose that reduces discharging.
Motor is under the high speed operating mode; Valve is in opening state; The aperture of air intake valve is regulated according to the actual conditions of motor by the air intake valve control mechanism, makes two groups of work runners of inner flow passage and outer flow passage all participate in work, under the co-operation of all runners; Realize the reasonable distribution of turbine flow, satisfy the performance requirement of motor high speed operating mode.
Turbine volute structure in the utility model and common pressurized machine worm frame are basic identical; Simple in structure, inheritance good, cost is low, easy Rapid Realization through engineering approaches; Air inlet regulating device in the model utility is simple in structure, and control mode realizes that easily reliability is high.
In sum; The spiral case device of the ram charging turbo machine of employing variable-geometry can effectively satisfy the supercharging requirement of the full operating mode scope of motor; Big variation does not take place in the supercharger integrated structure of the type, and cost is low, realizes easily; Have the vast market promotional value, realize the through engineering approaches and the commercialization of this series products easily.
Further specify below in conjunction with accompanying drawing with to the utility model.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the spiral case device 0-180 degree cross section of fluid channel structural representation of ram charging turbo machine among the utility model embodiment 1;
Fig. 3 is the gas exhaust manifold structural representation among the utility model embodiment 1;
Fig. 4 is the structural representation of air inlet regulating device among the utility model embodiment 1;
Fig. 5 is the structural representation of valve cover plate among the utility model embodiment 1;
Fig. 6 is the utility model embodiment 2 a structural representation;
Fig. 7 is the spiral case device 0-180 degree cross section of fluid channel structural representation of ram charging turbo machine among the utility model embodiment 2;
Fig. 8 is the gas exhaust manifold structural representation among the utility model embodiment 2;
Fig. 9 is the structural representation of air inlet regulating device among the utility model embodiment 3.
Among the figure: 1-first spiral case inlet; 2-second spiral case inlet; The 3-spiral case; 4-spiral case air outlet; 5-first inner flow passage; 6-second inner flow passage; 7-first outer flow passage; 8-second outer flow passage; The 9-valve; The 10-valve shaft; The 11-axle sleeve; 12-actuator; 13-valve cover plate; The outlet of 14-downtake pipe; The outlet of 15-second exhaust pipe.
Embodiment
Embodiment 1, and like Fig. 1, shown in Figure 2, a kind of spiral case device of ram charging turbo machine of variable-geometry comprises spiral case 3, and said spiral case 3 is provided with air inlet runner, and a wherein end of air inlet runner is provided with suction port, and the other end is provided with spiral case air outlet 4.
Said air inlet runner comprises two groups of work runners, and wherein one group is inner flow passage, and another group is outer flow passage, and said outer flow passage is positioned at a side of said inner flow passage.
Said inner flow passage comprises first inner flow passage 5 and second inner flow passage 6, and said outer flow passage comprises first outer flow passage 7 and second outer flow passage 8.
Suction port comprises first spiral case inlet 1 and second spiral case inlet 2;
Said first inner flow passage 5 and first outer flow passage 7 are connected with first spiral case inlet 1 and on circumferential direction, realize the half cycle air inlet of 0-180 degree;
Said second inner flow passage 6 and second outer flow passage 8 are connected with second spiral case inlet 2 and on circumferential direction, realize the half cycle air inlet of 180-360 degree.
On first outer flow passage 7, be respectively equipped with air inlet regulating device near the position of second spiral case inlet 2 near the position of first spiral case inlet 1 and second outer flow passage 8.
Said first spiral case inlet 1 and second spiral case inlet 2 also are connected with gas exhaust manifold respectively for the trapezium structure of arranging up and down.
As shown in Figure 3; Gas exhaust manifold comprises that the cross section is trapezoidal downtake pipe outlet 14 and second exhaust pipe outlet 15; Said first inner flow passage 5 and first outer flow passage 7 are communicated with downtake pipe outlet 14 through first spiral case inlet, 1 correspondence, and said second inner flow passage 6 and second outer flow passage 8 are communicated with second exhaust pipe outlet 15 through second spiral case inlet, 2 correspondences.
Said first inner flow passage 5 and second inner flow passage 6 are in running order all the time; Said first outer flow passage 7 and second outer flow passage 8 are in work and inoperative two states under the control of air inlet regulating device, every group of work runner realized the 360 degree full admissions of inlet stream to turbine wheel respectively.
As shown in Figure 4, the air inlet regulating device of said two outer flow passages is positioned at the spiral case homonymy, and air inlet regulating device is realized the distribution to charge flow rate according to the actual conditions of motor.
Said air inlet regulating device comprises the valve shaft 10 that is installed in the spiral case 3; The two ends of valve shaft 10 are rotationally connected respectively through axle sleeve 11 and spiral case 3; Wherein an end reaches the outside of spiral case 3 and is connected with actuator 12; Said valve shaft 10 passes first outer flow passage 7 and second outer flow passage 8, and the position that is positioned at first outer flow passage 7 and second outer flow passage 8 on the valve shaft 10 is separately installed with valve 9.
The opening and closing of actuator's 12 control valves 9 are regulated the distribution that realizes the turbine charge flow rate through the aperture to valve 9, thus the co-operation of outer flow passage in realizing.
As shown in Figure 5, said air inlet adjustment valve 9 corresponding parts are provided with valve cover plate 13, and said valve cover plate 13 is through bolt and spiral case 3 fixed seal connections.
Described valve cover plate plays seal action on the one hand, on the other hand, also has the effect of pressing plate between spiral case and the middle case.
Under the low engine speed operating mode, valve 9 is in closed condition under the control of actuator 12, and first outer flow passage 7 and second outer flow passage 8 are in closed state, are not connected with spiral case inlet.At this moment, the waste gas of being discharged by gas exhaust manifold only passes through first inner flow passage 5 and second inner flow passage 6 of said work runner, has only first inner flow passage 5 and the 6 participation work of second inner flow passage at this moment; First outer flow passage 7 and second outer flow passage 8 are not participated in work, because the turbine sectional area reduces, have improved the preceding suction pressure of turbine; Improved the available energy in the waste gas; Strengthened the acting ability of turbine, improved the low speed efficient of turbine, satisfied the low-speed performance of motor and reached the purpose that reduces discharging.
Under the motor high speed operating mode; Valve 9 is in opening state under the control of actuator; The aperture of said air intake valve 9 is regulated according to the actual conditions of motor by carrying out control mechanism, and at this moment, first inner flow passage 5, second inner flow passage 6, first outer flow passage 7 and second outer flow passage 8 all are connected with spiral case inlet; The interior outer flow passage that is said every group of work runner is all participated in work; Under the co-operation of all runners, thereby realize the reasonable distribution of turbine flow, satisfy the performance requirement of motor high speed operating mode.
Said first outer flow passage 7, first inner flow passage 5, second inner flow passage 6 and second outer flow passage 8 are arranged side by side in the spiral case.
As shown in Figure 8; Gas exhaust manifold comprises that the cross section is the downtake pipe outlet 14 and second exhaust pipe outlet 15 of rectangle; Said first inner flow passage 5 and first outer flow passage 7 are communicated with downtake pipe outlet 14 through first spiral case inlet, 1 correspondence, and said second inner flow passage 6 and second outer flow passage 8 are communicated with second exhaust pipe outlet 15 through second spiral case inlet, 2 correspondences.
The utility model has been accomplished the exploitation of the partial-air admission turbine plant of changeable flow to the demand of motor to variable-area turbocharger, has effectively utilized exhaust energy, has taken into account the boost demand under low engine speed and the high speed operating mode.The partial-air admission turbine plant of the type changeable flow can adopt the casting of existing common pressurized machine and processing technique to accomplish.
Claims (9)
1. the spiral case device of the ram charging turbo machine of a variable-geometry comprises spiral case (3), and said spiral case (3) is provided with air inlet runner, and a wherein end of air inlet runner is provided with suction port, and the other end is provided with spiral case air outlet (4), it is characterized in that:
Said air inlet runner comprises two groups of work runners:
-inner flow passage comprises first inner flow passage (5) and second inner flow passage (6);
-outer flow passage comprises first outer flow passage (7) and second outer flow passage (8);
Suction port comprises first spiral case inlet (1) and second spiral case inlet (2);
Said first inner flow passage (5) and first outer flow passage (7) are connected with first spiral case inlet (1) and on circumferential direction, realize the half cycle air inlet of 0-180 degree;
Said second inner flow passage (6) and second outer flow passage (8) are connected with second spiral case inlet (2) and on circumferential direction, realize the half cycle air inlet of 180-360 degree.
2. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 1 is characterized in that:
Go up near the position of first spiral case inlet (1) and second outer flow passage (8) at first outer flow passage (7) and to be respectively equipped with air inlet regulating device near the position of second spiral case inlet (2).
3. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 2, it is characterized in that: said two air inlet regulating device is positioned at the spiral case homonymy.
4. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 2, it is characterized in that: said two air inlet regulating devices lay respectively at spiral case (3) both sides.
5. according to the spiral case device of the ram charging turbo machine of claim 3 or 4 described variable-geometries; It is characterized in that: said air inlet regulating device comprises the valve shaft (10) that is installed in the spiral case (3); The two ends of valve shaft (10) and spiral case (3) are rotationally connected respectively; Wherein an end reaches the outside of spiral case (3) and is connected with actuator (12); Said valve shaft (10) passes first outer flow passage (7) and second outer flow passage (8), and the position that is positioned at first outer flow passage (7) and second outer flow passage (8) on the valve shaft (10) is separately installed with valve (9).
6. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 5; It is characterized in that: said spiral case (3) is gone up and is provided with valve cover plate (13) with the corresponding position of valve (9), valve cover plate (13) and spiral case (3) fixed seal connection.
7. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 6, it is characterized in that: the cross section of said first spiral case inlet (1) and second spiral case inlet (2) is a trapezium structure, is up and down to arrange.
8. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 6, it is characterized in that: the cross section of said first spiral case inlet (1) and second spiral case inlet (2) is a rectangular configuration, is arranged side by side about being.
9. the spiral case device of the ram charging turbo machine of variable-geometry according to claim 6, it is characterized in that: said first outer flow passage (7), first inner flow passage (5), second inner flow passage (6) and second outer flow passage (8) are arranged side by side in the spiral case (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203740387U CN202266306U (en) | 2011-10-08 | 2011-10-08 | Volute casing device of variable geometric pulse air inlet turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203740387U CN202266306U (en) | 2011-10-08 | 2011-10-08 | Volute casing device of variable geometric pulse air inlet turbine |
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| Publication Number | Publication Date |
|---|---|
| CN202266306U true CN202266306U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203740387U Expired - Lifetime CN202266306U (en) | 2011-10-08 | 2011-10-08 | Volute casing device of variable geometric pulse air inlet turbine |
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| CN (1) | CN202266306U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383877A (en) * | 2011-10-08 | 2012-03-21 | 康跃科技股份有限公司 | Volute device of variable geometry pulse gas inlet turbine |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| US10662870B2 (en) | 2015-02-25 | 2020-05-26 | Kangyue Technology Co., Ltd. | Variable geometry wastegate turbine |
-
2011
- 2011-10-08 CN CN2011203740387U patent/CN202266306U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383877A (en) * | 2011-10-08 | 2012-03-21 | 康跃科技股份有限公司 | Volute device of variable geometry pulse gas inlet turbine |
| WO2013049971A1 (en) * | 2011-10-08 | 2013-04-11 | Zhu Zhifu | Volute device of variable geometry pulse gas inlet turbine |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| US10662870B2 (en) | 2015-02-25 | 2020-05-26 | Kangyue Technology Co., Ltd. | Variable geometry wastegate turbine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |
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| CX01 | Expiry of patent term |