CN202091076U - Turbocharger turbine box with rocker arm-braking variable geometric control device - Google Patents
Turbocharger turbine box with rocker arm-braking variable geometric control device Download PDFInfo
- Publication number
- CN202091076U CN202091076U CN2011202035789U CN201120203578U CN202091076U CN 202091076 U CN202091076 U CN 202091076U CN 2011202035789 U CN2011202035789 U CN 2011202035789U CN 201120203578 U CN201120203578 U CN 201120203578U CN 202091076 U CN202091076 U CN 202091076U
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- turbine box
- shift fork
- ring
- rocking arm
- inner ring
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Abstract
A turbocharger turbine box with a rocker arm-braking variable geometric control device comprises a turbine box body and the rocker arm-braking variable geometric control device, wherein the rocker arm-braking variable geometric control device comprises an inner ring, a closed gas ring, a shift fork, a rocker arm, an actuator push rod, an actuator, an actuator bracket and a pressure pad; the actuator bracket is mounted on the turbine box body through bolts; the actuator is mounted on the actuator bracket through bolts; the actuator push rod is mounted on the actuator; the inner ring is fixed at the gas inlet end of the turbine box body through bolts; the closed gas ring is mounted on a closed gas ring guide sleeve of the inner ring and in transition fit with the closed gas ring guide sleeve; the shift fork extends into the turbine box through a shift fork hole on the turbine box; the circular arc end of the shift fork is clamped in a ring groove on the closed gas ring, so as to control the travel of the closed gas ring; the flat part at other end of the shift fork is inserted into the flat part at one end of the rocker arm, and is positioned through the pressure pad welded on the flat part of the shift fork; and the other end of the rocker arm is inserted into a taper hole on the actuator push rod.
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 9, it comprises turbine box 15, turbine rotor 16, nozzle assembly 10, bearing support 11, back of the body dish 12, compressor impeller 13, compressor volute 14, between turbine box 15 and bearing support 11, collet is housed, turbine rotor 16 is positioned at the outlet port of turbine box 15, turbine box 15 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 rocking arm braking of a design variable-geometry control gear on turbine box, control the flow area of turbine box gas flow by rocking arm 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 rocking arm braking variable-geometry control gear, it comprises turbine box body and rocking arm braking variable-geometry control gear.On the turbine box body, be provided with a shift fork hole, four tapped holes that connect inner ring.Rocking arm braking variable-geometry control gear is made up of inner ring, obturator ring, shift fork, rocking arm, final controlling element push rod, final controlling element, actuator bracket, pressure pad.Be provided with the obturator ring guide sleeve on an end of inner ring, the end plates of inner ring are provided with four sunk screw holes.On the cylindrical of obturator ring one end, be provided with a circular groove.Actuator bracket is installed on the turbine box body with screw, and final controlling element is installed on the actuator bracket with screw, and the final controlling element push rod is installed on the final controlling element.Inner ring is by the suction port end of screw at the turbine box body, and obturator ring is installed on the obturator ring guide sleeve of inner ring, and it cooperates each other and is transition fit.Shift fork stretches in the turbine box by the shift fork hole on the turbine box, the arc end of shift fork is stuck in the circular groove on the obturator ring, play control obturator ring stroke, the flat side of the other end inserts in the flat side of rocking arm one end, and by being welded on the pressure pad location on the flat side of shift fork, the other end of rocking arm is inserted in the taper hole on the final controlling element push rod.
During use, the turbine box that will have rocking arm 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 rocking arm braking variable-geometry control gear working principle that the utility model provides is as follows:
One, when time of engine low speed; the target value signal that rocking arm braking variable-geometry control gear collection Engine ECU is sent; in time send electrical signal and give final controlling element; the final controlling element push rod moves forward; drive the obturator ring that is installed on the inner ring obturator ring guide sleeve by rocking arm and shift fork and move 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; thus the rotating speed of raising pressurized machine increases charge flow rate.
Two, when high engine speeds turns round; rocking arm braking variable-geometry control gear is gathered the target value signal that Engine ECU is sent; in time send electrical signal and give final controlling element; the final controlling element push rod back moves; drive the obturator ring that is installed on the inner ring obturator ring guide sleeve by rocking arm and shift fork and also back move, obturator ring is progressively opened the gas flow of turbine box in moving process back, progressively increases 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 rocking arm 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, rocking arm braking variable-geometry control gear is gathered the angle target value signal that Engine ECU is sent, by the aperture of final controlling element control obturator ring.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 rocking arm braking variable-geometry control gear is also sent according to Engine ECU changes the actual internal area of turbine nozzle; thus different boost pressures and charge flow rate obtained; realize the optimum Match of full operating mode scope intrinsic motivation and pressurized machine; make power range expansion; and the economical operation scope of high load also enlarges, thus reach comprehensive optimization of motor economic performance.
2, turbo charger speed is controlled in the position of opening by rocking arm 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, and the turbine box gas flow in the accompanying drawing is a closed condition;
Accompanying drawing 2 is similarly structural representation of the present utility model, and the turbine box gas flow in the accompanying drawing is an open mode;
Accompanying drawing 3 is the structural representation of obturator ring;
Accompanying drawing 4 is the A-A sectional view in the accompanying drawing 3;
Accompanying drawing 5 is the structural representation of inner ring;
Accompanying drawing 7 is the assembling schematic representation of shift fork, rocking arm and pressure pad;
Accompanying drawing 8 is the right elevation in the accompanying drawing 7;
Accompanying drawing 9 is existing variable geometry turbocharger structural representation.
Embodiment
A kind of turbocharger turbine case that has rocking arm braking variable-geometry control gear, it comprises turbine box body 1 and rocking arm braking variable-geometry control gear.On turbine box body 1, be provided with a shift fork hole 1-2, four tapped hole 1-1 that connect inner ring.Rocking arm braking variable-geometry control gear is made up of inner ring 2, obturator ring 3, shift fork 4, Rocker arm 5, final controlling element push rod 6, final controlling element 7, actuator bracket 8, pressure pad 9.Be provided with obturator ring guide sleeve 2-2 on an end of inner ring 2, the end plates of inner ring 2 are provided with four sunk screw hole 2-1.On the cylindrical of obturator ring 3 one ends, be provided with a circular groove 3-1.Actuator bracket 8 usefulness screws are installed on the turbine box body 1, and final controlling element 7 usefulness screws are installed on the actuator bracket 8, and final controlling element push rod 6 is installed on the final controlling element 7.Inner ring 2 is by the suction port end of screw at turbine box body 1, and obturator ring 3 is installed on the obturator ring guide sleeve 2-2 of inner ring 2, and it cooperates each other and is transition fit.Shift fork 4 stretches in the turbine box 1 by the shift fork hole 1-2 on the turbine box 1, the arc end of shift fork 4 is stuck in the circular groove 3-1 on the obturator ring 3, play control obturator ring 3 strokes, the flat side of the other end inserts in the flat side of Rocker arm 5 one end, and by being welded on pressure pad 9 location on the shift fork 4 flat sides, the other end of Rocker arm 5 is inserted in the taper hole on the final controlling element push rod 6.
Claims (1)
1. one kind has the turbocharger turbine case that rocking arm is braked the variable-geometry control gear, it is characterized in that: it comprises turbine box body and rocking arm braking variable-geometry control gear; On the turbine box body, be provided with a shift fork hole, four tapped holes that connect inner ring; Rocking arm braking variable-geometry control gear is made up of inner ring, obturator ring, shift fork, rocking arm, final controlling element push rod, final controlling element, actuator bracket, pressure pad; Be provided with the obturator ring guide sleeve on an end of inner ring, the end plates of inner ring are provided with four sunk screw holes; On the cylindrical of obturator ring one end, be provided with a circular groove; Actuator bracket is installed on the turbine box body with screw, and final controlling element is installed on the actuator bracket with screw, and the final controlling element push rod is installed on the final controlling element; Inner ring is by the suction port end of screw at the turbine box body, and obturator ring is installed on the obturator ring guide sleeve of inner ring, and it cooperates each other and is transition fit; Shift fork stretches in the turbine box by the shift fork hole on the turbine box, the arc end of shift fork is stuck in the circular groove on the obturator ring, play control obturator ring stroke, the flat side of the other end inserts in the flat side of rocking arm one end, and by being welded on the pressure pad location on the flat side of shift fork, the other end of rocking arm is inserted in the taper hole on the final controlling element push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202035789U CN202091076U (en) | 2011-06-16 | 2011-06-16 | Turbocharger turbine box with rocker arm-braking variable geometric control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202035789U CN202091076U (en) | 2011-06-16 | 2011-06-16 | Turbocharger turbine box with rocker arm-braking variable geometric control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091076U true CN202091076U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202035789U Expired - Fee Related CN202091076U (en) | 2011-06-16 | 2011-06-16 | Turbocharger turbine box with rocker arm-braking variable geometric control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943388A (en) * | 2021-01-28 | 2021-06-11 | 蜂巢蔚领动力科技(江苏)有限公司 | Variable volume turbocharger |
-
2011
- 2011-06-16 CN CN2011202035789U patent/CN202091076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943388A (en) * | 2021-01-28 | 2021-06-11 | 蜂巢蔚领动力科技(江苏)有限公司 | Variable volume 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20180616 |