CN102278192A - Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine - Google Patents
Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine Download PDFInfo
- Publication number
- CN102278192A CN102278192A CN201110189615XA CN201110189615A CN102278192A CN 102278192 A CN102278192 A CN 102278192A CN 201110189615X A CN201110189615X A CN 201110189615XA CN 201110189615 A CN201110189615 A CN 201110189615A CN 102278192 A CN102278192 A CN 102278192A
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- gas path
- path joint
- mounting hole
- joint
- coil
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 99
- 238000005516 engineering process Methods 0.000 description 7
- 238000013022 venting Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 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
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- Supercharger (AREA)
Abstract
The invention discloses a pulse width modulation valve for controlling the boost pressure of a turbocharger of a gasoline engine. The pulse width modulation valve consists of a shell, a coil framework, a first air path joint, a copper sleeve, a movable armature, a wear-resistant rubber plug, a spring, a secondary bracket, a coil and a main bracket, wherein the shell is provided with an electrical signal joint. The coil is wound around the coil framework, the shell, the coil framework, the secondary bracket and the main bracket are integrated through injection molding, a coil joint of the coil framework is welded with the electric signal joint of the shell, and the secondary bracket and the main bracket are arranged at two ends of a combination part of the shell and the coil framework. During assembly, the movable armature with the wear-resistant rubber plug is arranged in a mounting hole of the first air path joint of the coil framework, and the spring is arranged in a central air hole on the movable armature. The first air path joint with the copper sleeve is arranged in the mounting hole of the first air path joint on the coil framework and is fixedly connected with a reverse tapered concave ring slot on the inner wall of the mounting hole of the first air path joint through a reverse tapered concave ring of the external circle in an interference fit manner.
Description
Technical field
The present invention relates to the turbocharger supercharged pressure techniques of petrol engine field, particularly a kind of turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine that is used for.
Background technique
In order to satisfy more and more strict emission control standards, automobile enterprise need constantly carry out technological improvement, turbosupercharger is to be diesel oil, supporting environmental protection, the energy-saving high-tech product of gasoline power plant, it can improve the working condition of motor well, thereby satisfy high-level emission request, supercharging is that motor satisfies more maximum discharge standard and the technology that must take.
Traditional supercharged engine is that turbosupercharger is appended on available engine, to improve output power, in order to improve low engine speed performance and acceleration, prevents the running hypervelocity of turbosupercharger, and turbosupercharger has adopted the exhaust gas bypass technology.
Adopt the advantage of exhaust gas bypass technology to be: the motor valve closing of exit when low speed and high pulling torque operating mode makes full use of the rotating speed that exhaust energy improves turbosupercharger, required air quantity and the pressure ratio of assurance motor; The motor valve opening by-passing part exhaust energy of exitting when high rotating speed, declared working condition guarantees that turbosupercharger does not exceed the speed limit.
Diesel engine be compression-ignited, compression ratio than petrol engine height, engine speed is in the matched well of 700rpm～3500 rpm turbosupercharger of having used the exhaust gas bypass technical guarantee and motor.
Petrol engine is that Spark ignition type, compression ratio are about 8～12; Petrolic rotating speed is at 700rpm～6500 rpm, and the air mass flow excursion is big, because suction pressure and temperature all raise, this makes and compress temperature rising at the end, makes the tendency to detonate aggravation after the petrol engine supercharging.Adopt turbosupercharging to cause in the factors of pinking that therefore having the greatest impact of boost pressure, must be controlled boost pressure at petrol engine.Present stage, the maximal pressure ratio is controlled at about 1.8～2.0 can effectively suppress pinking.
After the petrol engine turbosupercharging, directly the subject matter point that adopts the exhaust gas bypass technology that boost pressure is controlled appearance is: adopt the exhaust gas bypass technology that the control of boost pressure is approximately the linearity control mode, boost pressure progressively raises with the operating mode of motor from low speed point, torque point, rated point.Petrol engine causes pinking for preventing that boost pressure is too high, and the maximal pressure ratio is controlled at about 1.8～2.0, and the pretightening force of final controlling element is on the low side; The boost pressure of torque point part operating mode can be approaching with the rated point boost pressure in demarcation, even than rated point boost pressure height.The exhaust gas bypass technology can not be carried out Flexible Control to turbo boost pressure according to engine design point, can not satisfy the torque demand of whole working condition point, can only reduce engine power performance, economic index, influences the popularization of turbocharging technology on petrol engine.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine that is used for is provided.
Technological scheme of the present invention is: a kind of turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine that is used for, it is made up of the shell that has the electrical signal joint, coil rack, first gas path joint, copper sheathing, moving armature, abrasive rubber plug, spring, assistant support, coil and master bracket.Be provided with the first gas path joint mounting hole, second gas path joint and the 3rd gas path joint on coil rack, second gas path joint, the 3rd gas path joint communicate with the first gas path joint mounting hole.Be provided with a plurality of air drains on the inwall of the first gas path joint mounting hole and second gas path joint, the 3rd gas path joint connecting part, a plurality of air drains are evenly distributed on the inwall of the first gas path joint mounting hole.Be provided with the inverted cone concave ring groove that two circles match with inverted cone bulge loop on the first gas path joint cylindrical on the inwall of the first gas path joint mounting hole.Coil winding is on coil rack, shell, coil rack, assistant support and master bracket are by being injected into one, coil connectors on the coil rack and the electrical signal joint on the shell weld together, assistant support and master bracket are located at the two ends of shell and coil rack connecting part, work to increase structural strength.One end of first gas path joint is provided with a copper sheathing mounting hole, and copper sheathing embeds in the copper sheathing mounting hole on first gas path joint by interference fit.Be provided with two circle inverted cone bulge loops on the cylindrical of first gas path joint, the inverted cone concave ring groove on inverted cone bulge loop and the coil rack on the first gas path joint mounting hole inwall matches.Moving armature is provided with centre porosity, and the cylindrical of moving armature is provided with a circle annular gas tank, and annular gas tank is provided with a plurality of pores, and pore is evenly distributed on the annular gas tank, and communicates with centre porosity.One end of moving armature is provided with an abrasive rubber plug mounting hole, and the abrasive rubber plug is fixed in the abrasive rubber plug mounting hole on the moving armature by injection moulding.
During assembling, the moving armature that will have the abrasive rubber plug earlier is installed in the first gas path joint mounting hole on the coil rack, and spring is installed in the centre porosity on the moving armature.First gas path joint that has a copper sheathing is installed in the first gas path joint mounting hole on the coil rack, and utilizes inverted cone bulge loop on its cylindrical and the inverted cone concave ring groove on the first gas path joint mounting hole inwall securely to link together by interference fit.At this moment, an end of spring withstands on the bottom in the moving armature centre porosity, and the other end withstands on the outer end of first gas path joint.
The present invention compared with prior art has following characteristics:
Link by pulse width modulated valve power on signal joint and Engine ECU output signal, utilize input pulse to transfer the duty cycle signals of wide valve, control impuls is transferred the boost pressure size of wide valve second gas path joint passage output, the working pressure flexibility that realizes final controlling element is adjustable, reach the adjustable of exhaust gas bypass amount, the rotating speed of control turbosupercharger finally reaches the flexibility adjustment of boost pressure, has taken into account power performance and the economic performance of petrol engine motor under each operating mode effectively.
Below in conjunction with the drawings and specific embodiments detailed structure of the present invention is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the A-A sectional view in the accompanying drawing 1;
Accompanying drawing 3 is the structural representation of coil rack;
Accompanying drawing 5 is the structural representation of moving armature;
Accompanying drawing 6 is the C-C sectional view in the accompanying drawing 5;
Accompanying drawing 7 is the structural representation of first gas path joint;
Accompanying drawing 8 is the D-D sectional view in the accompanying drawing 7;
Accompanying drawing 10 is under the different duty condition, and the second gas path joint passage delivery pressure curve synoptic diagram vertically is the pressure of second gas path joint passage output in the accompanying drawing, laterally is dutycycle.
Embodiment
A kind of turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine that is used for, it is made up of the shell 1 that has electrical signal joint 1-1, coil rack 2, first gas path joint 3, copper sheathing 4, moving armature 5, abrasive rubber plug 6, spring 7, assistant support 8, coil 9 and master bracket 10.Be provided with the first gas path joint mounting hole 2-2, the second gas path joint 2-5 and the 3rd gas path joint 2-4 on coil rack 2, the second gas path joint 2-5, the 3rd gas path joint 2-4 communicate with the first gas path joint mounting hole 2-2.Be provided with six air drain 2-1 on the inwall of the first gas path joint mounting hole 2-2 and the second gas path joint 2-5, the 3rd gas path joint 2-4 connecting part, six air drain 2-1 are evenly distributed on the inwall of the first gas path joint mounting hole 2-2.Be provided with the inverted cone concave ring groove 2-3 that two circles match with inverted cone bulge loop on first gas path joint, 3 cylindricals on the inwall of the first gas path joint mounting hole 2-2.Coil 9 is wound on the coil rack 2, shell 1, coil rack 2, assistant support 8 and master bracket 10 are by being injected into one, coil 9 joints on the coil rack 2 and the electrical signal joint 1-1 on the shell 1 weld together, assistant support 8 and master bracket 10 are located at the two ends of shell 1 and coil rack 2 connecting parts, work to increase structural strength.One end of first gas path joint 3 is provided with a copper sheathing mounting hole 3-2, and copper sheathing 4 embeds in the copper sheathing mounting hole 3-2 on first gas path joint 3 by interference fit.Be provided with two circle inverted cone bulge loop 3-1 on the cylindrical of first gas path joint 3, the inverted cone concave ring groove 2-3 on inverted cone bulge loop 3-1 and the coil rack 2 on the first gas path joint mounting hole 2-2 inwall matches.Moving armature 5 is provided with centre porosity 5-4, and the cylindrical of moving armature 5 is provided with a circle annular gas tank 5-1, and annular gas tank 5-1 is provided with six pore 5-2, and pore 5-2 is evenly distributed on the annular gas tank 5-1, and communicates with centre porosity 5-4.One end of moving armature 5 is provided with an abrasive rubber plug mounting hole 5-3, and abrasive rubber plug 6 is fixed in the abrasive rubber plug mounting hole 5-3 on the moving armature 5 by injection moulding.
During assembling, the moving armature 5 that will have abrasive rubber plug 6 earlier is installed in the first gas path joint mounting hole 2-2 on the coil rack 2, and spring 7 is installed in the centre porosity 5-4 on the moving armature 5.First gas path joint 3 that has a copper sheathing 4 is installed in the first gas path joint mounting hole 2-2 on the coil rack 2, and utilizes inverted cone bulge loop 3-1 on its cylindrical and the inverted cone concave ring groove 2-3 on the first gas path joint mounting hole 2-2 inwall securely to link together by interference fit.At this moment, an end of spring 7 withstands on the bottom in the moving armature 5 centre porosity 5-4, and the other end withstands on the outer end of first gas path joint 3.
After assembling, because moving armature 5 light weight, and be furnished with pore 5-2 and annular gas tank 5-1 equably in the border, coil rack 2 also is provided with air drain 2-1 at the annular gas tank 5-1 opposite position with moving armature 5, and gas stream forms air film when pore 5-2, air drain 2-1, reduced surface friction drag, responsiveness is fast, makes moving armature 5 in the course of the work, and gas circuit is unobstructed, can not produce extra vapour lock, guarantee the stability of pulse width modulated valve work because of residing position is different.Abrasive rubber plug 6 has good wear resistance, and it is less that pulse width modulated valve is worn and torn in long-term use, guaranteed working life.Copper sheathing 4 has not only played the wearing and tearing that reduce abrasive rubber plug 6, has also guaranteed when pulse width modulated valve is worked and the sealing between the abrasive rubber plug 6.
The pulse width modulated valve that present embodiment provides is a two-position three-way valve, and first gas path joint 3, the second gas path joint 2-5, three air-path interfaces of the 3rd gas path joint 2-4 and an electrical signal joint 1-1 are arranged on the valve.During use, first gas path joint 3 and turbocharger air compressor air outlet UNICOM, the second gas path joint 2-5 and final controlling element suction port UNICOM, the 3rd gas path joint 2-4 and turbocharger air compressor suction port UNICOM.Electrical signal joint 1-1 and Engine ECU output signal link, utilize input pulse to transfer the duty cycle signals of wide valve, control impuls is transferred the boost pressure size of wide valve second gas path joint 2-5 passage output, the working pressure flexibility that realizes final controlling element is adjustable, reach the adjustable of exhaust gas bypass amount, the rotating speed of control turbosupercharger finally reaches the flexibility adjustment of boost pressure, has taken into account power performance and the economic performance of petrol engine under each operating mode effectively.
The pulse width modulated valve working principle that present embodiment provides is as follows:
When pulse width modulated valve duty cycle signals was 0%: under the double action of spring 7 and gas compressor air outlet gas, moving armature 5 drove abrasive rubber plugs 6 the 3rd gas path joint 2-4 passage is stopped up.Import gas stream through the pore 5-2 of first gas path joint, 3 passages, moving armature 5 borders, the annular gas tank 5-1 on the moving armature 5, the air drain 2-1 on the coil rack 2 this moment, first gas path joint, 3 passages and the second gas path joint 2-5 passage UNICOM, the control of turbocharger air compressor boost pressure is to enter final controlling element by first gas path joint 3 from the second gas path joint 2-5, it is bigger to promote final controlling element push rod stroke, at this moment, the venting valve opening is bigger, and the bypass exhausted air quantity is bigger.
When pulse width modulated valve duty cycle signals was 100%: moving armature 5 overcame the dual resistance of spring 7 and gas compressor air outlet gas under the magnetic force of coil 9, drives abrasive rubber plug 6 first gas path joint, 3 passages are stopped up.At this moment, the second gas path joint 2-5 passage and the 3rd gas path joint 2-5 passage UNICOM, original pressurization gas in the final controlling element releases by the second gas path joint 2-5 and the 3rd gas path joint 2-5, final controlling element push rod return, at this moment, and the venting valve closing, waste gas is bypass not.
When pulse width modulated valve duty cycle signals is intermediate value, moving armature 5 is according to duty cycle signals, under the compound action of the magnetic force of coil 9, spring 7 elastic force, gas compressor air outlet gas pressure, moving armature 5 is with the motion of the frequency reciprocating vibration of 32HZ, makes the pressurization gas of the turbocharger air compressor outlet of first gas path joint 3 pro rata distribute the second gas path joint 2-5, enters final controlling element, promoting the final controlling element push rod moves, at this moment, the venting valve opening is moderate, by-passing part waste gas.
When first gas path joint, 3 incoming pressures are definite value, utilize input pulse to transfer the duty cycle signals of wide valve, the boost pressure that can control second gas path joint 2-5 output is the arbitrary value smaller or equal to this definite value, the working pressure flexibility that realizes final controlling element is adjustable, reach the adjustable of exhaust gas bypass amount, the rotating speed of control turbosupercharger finally reaches the flexibility adjustment of boost pressure, has taken into account power performance and the economic performance of petrol engine under each operating mode effectively.
Claims (2)
1. one kind is used for the turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine, and it is characterized in that: it is made up of the shell that has the electrical signal joint, coil rack, first gas path joint, copper sheathing, moving armature, abrasive rubber plug, spring, assistant support, coil and master bracket; On coil rack, be provided with the first gas path joint mounting hole, second gas path joint and the 3rd gas path joint, second gas path joint, the 3rd gas path joint communicate with the first gas path joint mounting hole, on the inwall of the first gas path joint mounting hole and second gas path joint, the 3rd gas path joint connecting part, be provided with a plurality of air drains, a plurality of air drains are evenly distributed on the inwall of the first gas path joint mounting hole, are being provided with the inverted cone concave ring groove that two circles match with inverted cone bulge loop on the first gas path joint cylindrical on the inwall of the first gas path joint mounting hole; Coil winding is on coil rack, shell, coil rack, assistant support and master bracket are by being injected into one, coil connectors on the coil rack and the electrical signal joint on the shell weld together, assistant support and master bracket are located at the two ends of shell and coil rack connecting part, work to increase structural strength; One end of first gas path joint is provided with a copper sheathing mounting hole, copper sheathing embeds in the copper sheathing mounting hole on first gas path joint by interference fit, be provided with two circle inverted cone bulge loops on the cylindrical of first gas path joint, the inverted cone concave ring groove on inverted cone bulge loop and the coil rack on the first gas path joint mounting hole inwall matches; Moving armature is provided with centre porosity, the cylindrical of moving armature is provided with a circle annular gas tank, annular gas tank is provided with a plurality of pores, pore is evenly distributed on the annular gas tank, and communicate with centre porosity, one end of moving armature is provided with an abrasive rubber plug mounting hole, and the abrasive rubber plug is fixed in the abrasive rubber plug mounting hole on the moving armature by injection moulding;
During assembling, the moving armature that will have the abrasive rubber plug earlier is installed in the first gas path joint mounting hole on the coil rack, spring is installed in the centre porosity on the moving armature, first gas path joint that has a copper sheathing is installed in the first gas path joint mounting hole on the coil rack, and utilize inverted cone bulge loop on its cylindrical and the inverted cone concave ring groove on the first gas path joint mounting hole inwall securely to link together by interference fit, at this moment, one end of spring withstands on the bottom in the moving armature centre porosity, and the other end withstands on the outer end of first gas path joint.
2. a kind of turbocharger supercharged pressure controlled pulse width modulated valve of petrol engine that is used for according to claim 1, it is characterized in that: be provided with six air drains on the inwall of the first gas path joint mounting hole and second gas path joint, the 3rd gas path joint connecting part, six air drains are evenly distributed on the inwall of the first gas path joint mounting hole; The annular gas tank of moving armature is provided with six pores, and six pores are evenly distributed on the annular gas tank, and communicate with centre porosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189615.XA CN102278192B (en) | 2011-07-07 | 2011-07-07 | Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189615.XA CN102278192B (en) | 2011-07-07 | 2011-07-07 | Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102278192A true CN102278192A (en) | 2011-12-14 |
| CN102278192B CN102278192B (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110189615.XA Expired - Fee Related CN102278192B (en) | 2011-07-07 | 2011-07-07 | Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102278192B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102371A (en) * | 1987-04-20 | 1988-11-09 | 联合信号公司 | The closed loop turbocharger control system that has transient wastegate control |
| CN2164488Y (en) * | 1993-06-24 | 1994-05-11 | 中国贵航集团新安机械厂 | Three-way two-way electromagnetic valve |
| CN1376236A (en) * | 1999-07-27 | 2002-10-23 | 联合讯号公司 | Integrally mounted pneumatic solenoid valve for wastegate control |
| CN2528942Y (en) * | 2002-03-22 | 2003-01-01 | 哈尔滨志阳汽车电气股份有限公司 | Variable air intake magnetic valve |
| JP2005061624A (en) * | 2003-08-08 | 2005-03-10 | Carl Freudenberg Kg | Solenoid valve |
| CN201616356U (en) * | 2010-02-24 | 2010-10-27 | 辽宁省电力有限公司鞍山供电公司 | Electromagnetic blowdown valve used for pneumatic operating mechanism of circuit breaker |
| CN202140165U (en) * | 2011-07-07 | 2012-02-08 | 湖南天雁机械有限责任公司 | Pulse width adjusting valve for controlling boost pressure of turbocharger of gasoline engine |
-
2011
- 2011-07-07 CN CN201110189615.XA patent/CN102278192B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102371A (en) * | 1987-04-20 | 1988-11-09 | 联合信号公司 | The closed loop turbocharger control system that has transient wastegate control |
| CN2164488Y (en) * | 1993-06-24 | 1994-05-11 | 中国贵航集团新安机械厂 | Three-way two-way electromagnetic valve |
| CN1376236A (en) * | 1999-07-27 | 2002-10-23 | 联合讯号公司 | Integrally mounted pneumatic solenoid valve for wastegate control |
| CN2528942Y (en) * | 2002-03-22 | 2003-01-01 | 哈尔滨志阳汽车电气股份有限公司 | Variable air intake magnetic valve |
| JP2005061624A (en) * | 2003-08-08 | 2005-03-10 | Carl Freudenberg Kg | Solenoid valve |
| CN201616356U (en) * | 2010-02-24 | 2010-10-27 | 辽宁省电力有限公司鞍山供电公司 | Electromagnetic blowdown valve used for pneumatic operating mechanism of circuit breaker |
| CN202140165U (en) * | 2011-07-07 | 2012-02-08 | 湖南天雁机械有限责任公司 | Pulse width adjusting valve for controlling boost pressure of turbocharger of gasoline engine |
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| Publication number | Publication date |
|---|---|
| CN102278192B (en) | 2014-06-11 |
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