CN204492968U - Sequential supercharged diesel engine switches stabilizer - Google Patents
Sequential supercharged diesel engine switches stabilizer Download PDFInfo
- Publication number
- CN204492968U CN204492968U CN201420785196.5U CN201420785196U CN204492968U CN 204492968 U CN204492968 U CN 204492968U CN 201420785196 U CN201420785196 U CN 201420785196U CN 204492968 U CN204492968 U CN 204492968U
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- boost device
- diesel engine
- suction tude
- controlled boost
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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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Abstract
The purpose of this utility model is to provide sequential supercharged diesel engine to switch stabilizer, the gas compressor of basic pressurized machine connects cylinder of diesel engine by A row suction tude, the turbine of basic pressurized machine connects cylinder of diesel engine by A row outlet pipe, the gas compressor of controlled boost device connects cylinder of diesel engine by B row suction tude, the turbine of controlled boost device connects cylinder of diesel engine by B row outlet pipe, A row suction tude is installed A row intercooler, B row suction tude is installed B row intercooler, air valve, bleed valve, gas valve installed by B row outlet pipe, be communicated with by air inlet connecting tube between A row suction tude and B row suction tude, by communicating exhaust gas pipe between A row outlet pipe and B row outlet pipe, the axle of controlled boost device connects motor by clutch.The utility model eliminates consecutive pressurization system delay issue switching time, prevents engine speed fluctuations, improves the stability of handoff procedure.
Description
Technical field
The utility model relates to a kind of engine device.
Background technique
Sequential pressurizing technology refers to employing two or multiple stage turbosupercharger, according to the difference of diesel engine operating conditions, use the turbosupercharger parallel running with it of varying number, the effective ways improving highly supercharged diesel engine low-load performance, there is structure simple, reliability is high, is easy to the advantage realized on existing turbo-charged diesel, has obtained at present applying more and more widely.
The sequential pressurizing switching delay time is one of key technology determining sequential pressurizing, and along with the supercharging of diesel engine speed and load, the gas valve in consecutive pressurization system and air valve are successively opened, and controlled boost device puts into operation.In handoff procedure, due to factors such as pressurized machine self rotating speed inertia, controlled boost device cannot make an immediate response and devote oneself to work, and namely has hysteresis quality, so gas valve must be opened prior to air valve certain hour, prevents controlled boost device generation surge in handoff procedure.But, due to the unlatching of gas valve, make the instantaneous minimizing of the exhaust gas flow of basic pressurized machine, and air valve need postpone a period of time opens again, during this, controlled boost device cannot provide pressurized air to motor, causes engine speed fluctuations, runs the bad phenomenon such as not steady.
Owing to having response characteristic and flexibly working method fast, electric auxiliary turbine supercharging technology receives gradually to be paid close attention to and enters R&D process.When the large load of low speed, accelerating mode, electric motor starting drives gas compressor work, and electric energy conversion is the kinetic energy of gas compressor, to improve suction pressure; When engine operation is in high speed or large load, motor cuts out, and generator starts, and reclaims a part in turbine power and is converted into electric energy.Electricity additional mechanical supercharging mainly contains three kinds of implementations: the mid-and electric hydraulic booster of motor preposition, motor is independently arranged.
Authorize or in disclosed patent, related to the more of electric additional mechanical supercharging turbosupercharger at present.As " electric auxiliary turbine pressurizer " patent that application number is " 200720017195.X ", provide a kind of electric auxiliary turbine pressurizer, outside the suction port electric auxiliary device being arranged at compressor casing, to overcome the restriction of turbosupercharger high temperature to electric auxiliary device, but this electric auxiliary device changes the balance of pressurized machine, can vibration problem be produced, unfavorable to pressurized machine work.Application number is " a kind of electric auxiliary turbine pressurizer " of " 200820225752.8 ", on the basis of patent " electric auxiliary turbine pressurizer ", between electromagnetic rotor and compressor impeller, be provided with rotor bearing support device, eliminate the uneven vibration problem brought of pressurized machine axle system with this.But because rotor and turbosupercharger coupling shaft are fixed together, turbosupercharger runs up for a long time and can reduce the ride quality of motor, similar scheme together with integrated with turbosupercharger for electric auxiliary device being worth improves further.Meanwhile, above-mentioned patent is all that electric additional mechanical supercharging technology is used in merely in turbosupercharger, is intended to the perfect match and the turbo-lag effect that solve full working scope.
Summary of the invention
The purpose of this utility model is to provide can eliminate sequential supercharged diesel engine delay issue switching time, and the sequential supercharged diesel engine improving handoff procedure stability switches stabilizer.
The purpose of this utility model is achieved in that
The utility model sequential supercharged diesel engine switches stabilizer, comprise basic pressurized machine, controlled boost device, cylinder of diesel engine, it is characterized in that: the gas compressor of basic pressurized machine connects cylinder of diesel engine by A row suction tude, the turbine of basic pressurized machine connects cylinder of diesel engine by A row outlet pipe, the gas compressor of controlled boost device connects cylinder of diesel engine by B row suction tude, the turbine of controlled boost device connects cylinder of diesel engine by B row outlet pipe, A row suction tude is installed A row intercooler, B row suction tude is installed B row intercooler, air valve, bleed valve, gas valve installed by B row outlet pipe, be communicated with by air inlet connecting tube between A row suction tude and B row suction tude, by communicating exhaust gas pipe connecting tube between A row outlet pipe and B row outlet pipe, gas valve is arranged between the turbine of communicating exhaust gas pipe and B row outlet pipe joint and controlled boost device, between the gas compressor that bleed valve is arranged on controlled boost device and air valve, air valve is arranged on air inlet connecting tube and between B row suction tude joint and bleed valve, the axle of controlled boost device connects motor by clutch.
The utility model can also comprise:
The axle of 1, basic pressurized machine and controlled boost device installs the first speed probe and the second speed probe respectively, the A row suction tude at basic supercharger air compressor rear installs the first pressure transducer, the B row suction tude at controlled boost device gas compressor rear installs the second pressure transducer.
Advantage of the present utility model is: the utility model can carry out additional mechanical supercharging to controlled boost device in sequential supercharged diesel engine handoff procedure, eliminate consecutive pressurization system delay issue switching time, prevent engine speed fluctuations, improve the stability of handoff procedure.Control to effectively prevent turbosupercharger high temperature, high-revolving working environment to the restriction of electric auxiliary device by engaging and disengaging gear.Inertial force after utilizing controlled boost device to cut out charges to storage battery in electric auxiliary device, while making full use of the energy, contributes to controlled boost device and quits work fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is flow chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 2, sequential supercharged diesel engine of the present utility model switches stabilizer, turbosupercharger is connected by pipeline with cylinder of diesel engine, turbosupercharger comprises basic pressurized machine 1 and controlled boost device 12, motor 10 and engaging and disengaging gear is provided with before the gas compressor of wherein controlled boost device 12, intercooler is arranged on the pipeline that turbosupercharger is connected with cylinder of diesel engine, comprises A row intercooler 5 and B row intercooler 6.Gas valve 3 is arranged between controlled boost device 12 turbine inlet and waste gas connecting tube, and air valve 8 is arranged between controlled boost device 12 blower outlet and B row intercooler 6 entrance, and bleed valve 9 is arranged between air valve 8 and controlled boost device 12 blower outlet.
Turbosupercharger coupling shaft is provided with speed probe 13,14, is used for measuring turbo charger speed.At turbocharger air compressor outlet port setting pressure sensor 2,10, be used for measuring compressor delivery pressure.Motor 10 has generator function simultaneously, and location arrangements before controlled boost device 12 gas compressor, and is provided with corresponding engaging and disengaging gear, and motor 10 rotor and controlled boost device 12 coupling shaft are defaulted as bonding state.The control of engaging and disengaging gear is determined according to collection speed probe and pressure sensor signal.
It is as follows that sequential supercharged diesel engine switches stable control method flow process:
(1) tach signal of basic turbocharger speed sensor 13 and controlled boost device speed probe 14 is gathered respectively, the pressure signal of basic charger pressure sensor 2 and controlled boost device pressure transducer 10.
(2) if meet the condition switched, open gas valve 3 and air valve 8 simultaneously, and starting electrical machinery 11, motor 11 drives controlled boost device 12 to run up.
(3) judge the rotating speed of basic turbocharger speed sensor 14 and controlled boost device speed probe 13, when both relative error higher than 10% time, maintain motor 11 work on; When both relative errors lower than 10% time, then the pressure of basic charger pressure sensor 2 and controlled boost device pressure transducer 10 to be judged.
(4) judge that whether basic charger pressure sensor 2 is equal with the pressure of controlled boost device pressure transducer 10, if unequal, then maintain motor 11 to work on, if equal, then controlling engaging and disengaging gear makes motor 11 be separated with controlled boost device 12 and disable motor 11, and so far controlled boost device 12 is cut smoothly and carried out work.
(5) continue to gather basic pressurized machine and the tach signal of controlled boost device speed probe and the pressure signal of pressure transducer.When meeting controlled boost device 12 and cutting out condition, closing gas valve 3 and air valve 8 simultaneously, and open bleed valve 9, control motor 11 to be combined with controlled turbosupercharger 12, utilize the inertial force drive motor of the high 12 speed runnings of controlled boost device to charge to storage battery, so far controlled boost device 12 cuts out smoothly.
The utility model is achieved in that and mainly comprises cylinder of diesel engine, turbosupercharger, intercooler, motor, pressure transducer, speed probe, gas valve, air valve and bleed valve.It is characterized in that: turbosupercharger is connected by pipeline with cylinder of diesel engine, motor and engaging and disengaging gear is provided with before the gas compressor of wherein controlled boost device, intercooler is arranged on the pipeline that turbosupercharger is connected with cylinder of diesel engine, gas valve is arranged between controlled boost device turbine inlet and waste gas connecting tube, air valve is arranged between controlled boost device blower outlet and intercooler entrance, and bleed valve is arranged between air valve and controlled boost device blower outlet.
Motor also can be used as generator simultaneously, and location arrangements before controlled boost device gas compressor, and is provided with corresponding engaging and disengaging gear, and rotor and controlled boost device coupling shaft are defaulted as bonding state.The control of engaging and disengaging gear is determined according to collection speed probe and pressure sensor signal.
Wherein, the incision of controlled boost device or the condition that cuts out are determined according to turbo charger speed and pressure signal, and its specific standards is different because of type.
Control principle of the present utility model is such:
(1) tach signal of basic pressurized machine and controlled boost device speed probe and the pressure signal of pressure transducer is gathered respectively.
(2) if meet the condition switched, open gas valve and air valve simultaneously, and starting electrical machinery, driven by motor controlled boost device runs up.
(3) judge the rotating speed of basic turbocharger speed sensor and controlled boost device speed probe, when both relative error higher than 10% time, maintain motor work on; When both relative errors lower than 10% time, then the pressure of basic charger pressure sensor and controlled boost device pressure transducer to be judged.
(4) judge that whether basic charger pressure sensor is equal with the pressure of controlled boost device pressure transducer, if unequal, then maintain motor to work on, if equal, then controlling engaging and disengaging gear makes motor be separated with controlled boost device and disable motor, and so far controlled boost device is cut smoothly and carried out work.
(5) continue to gather basic pressurized machine and the tach signal of controlled boost device speed probe and the pressure signal of pressure transducer.When meeting controlled boost device and cutting out condition, closing gas valve and air valve simultaneously, and open bleed valve, control motor and be combined with controlled turbosupercharger, the inertial force drive motor utilizing controlled boost device to run up charges to storage battery, and so far controlled boost device cuts out smoothly.
First the tach signal of basic pressurized machine and controlled boost device speed probe and the pressure signal of pressure transducer is gathered respectively, if do not meet incision condition, switch and do not carry out, motor does not start, gas valve, air valve and bleed valve are all in closed condition, controlled boost device does not work, and rotor and controlled boost device coupling shaft keep bonding state simultaneously; If meet the condition of incision, open bleed valve and air valve simultaneously, and starting electrical machinery, driven by motor controlled boost device runs up; Judge the rotating speed of basic pressurized machine and controlled boost device speed probe, if both relative errors higher than 10% time, maintain motor work on; If both relative errors lower than 10% time, judge again basic pressurized machine and controlled boost device pressure transducer pressure whether equal, if unequal, then maintain motor to work on, if equal, then solenoidoperated cluthes make motor be separated with turbosupercharger and disable motor, and so far controlled boost device is cut smoothly and carried out work; Continue to gather basic pressurized machine and the tach signal of controlled boost device speed probe and the pressure signal of pressure transducer, if meet controlled boost device when cutting out condition, closing gas valve and air valve simultaneously, and open bleed valve, control motor to be combined with controlled turbosupercharger, the inertia utilizing controlled boost device to run up charges to storage battery, and so far controlled boost device cuts out smoothly.
Claims (2)
1. sequential supercharged diesel engine switches stabilizer, comprise basic pressurized machine, controlled boost device, cylinder of diesel engine, it is characterized in that: the gas compressor of basic pressurized machine connects cylinder of diesel engine by A row suction tude, the turbine of basic pressurized machine connects cylinder of diesel engine by A row outlet pipe, the gas compressor of controlled boost device connects cylinder of diesel engine by B row suction tude, the turbine of controlled boost device connects cylinder of diesel engine by B row outlet pipe, A row suction tude is installed A row intercooler, B row suction tude is installed B row intercooler, air valve, bleed valve, gas valve installed by B row outlet pipe, be communicated with by air inlet connecting tube between A row suction tude and B row suction tude, by communicating exhaust gas pipe connecting tube between A row outlet pipe and B row outlet pipe, gas valve is arranged between the turbine of communicating exhaust gas pipe and B row outlet pipe joint and controlled boost device, between the gas compressor that bleed valve is arranged on controlled boost device and air valve, air valve is arranged on air inlet connecting tube and between B row suction tude joint and bleed valve, the axle of controlled boost device connects motor by clutch.
2. sequential supercharged diesel engine according to claim 1 switches stabilizer, it is characterized in that: the axle of basic pressurized machine and controlled boost device installs the first speed probe and the second speed probe respectively, the A row suction tude at basic supercharger air compressor rear installs the first pressure transducer, the B row suction tude at controlled boost device gas compressor rear installs the second pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785196.5U CN204492968U (en) | 2014-12-11 | 2014-12-11 | Sequential supercharged diesel engine switches stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785196.5U CN204492968U (en) | 2014-12-11 | 2014-12-11 | Sequential supercharged diesel engine switches stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492968U true CN204492968U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420785196.5U Expired - Fee Related CN204492968U (en) | 2014-12-11 | 2014-12-11 | Sequential supercharged diesel engine switches stabilizer |
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| Country | Link |
|---|---|
| CN (1) | CN204492968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675512A (en) * | 2014-12-11 | 2015-06-03 | 哈尔滨工程大学 | Sequential supercharged diesel engine switching stabilizing device and control method |
-
2014
- 2014-12-11 CN CN201420785196.5U patent/CN204492968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675512A (en) * | 2014-12-11 | 2015-06-03 | 哈尔滨工程大学 | Sequential supercharged diesel engine switching stabilizing device and control method |
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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: 20150722 Termination date: 20201211 |