CN203035339U - Sequential turbocharging switching gas supply device of diesel engine - Google Patents
Sequential turbocharging switching gas supply device of diesel engine Download PDFInfo
- Publication number
- CN203035339U CN203035339U CN2012206589815U CN201220658981U CN203035339U CN 203035339 U CN203035339 U CN 203035339U CN 2012206589815 U CN2012206589815 U CN 2012206589815U CN 201220658981 U CN201220658981 U CN 201220658981U CN 203035339 U CN203035339 U CN 203035339U
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- air
- diesel engine
- tonifying
- distributor
- bottle
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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 utility model provides a sequential turbocharging switching gas supply device of a diesel engine and a sequential turbocharging switching gas supply method for the diesel engine. The sequential turbocharging switching gas supply device of the diesel engine comprises a basic turbocharger, a controlled turbocharger, a main air bottle, an air supply air bottle and an air supply distributor. The basic turbocharger and the controlled turbocharger are respectively connected with the diesel engine. An air valve is arranged between a gas compressor of the controlled turbocharger and the diesel engine. A gas valve is arranged between a turbine of the controlled turbocharger and the diesel engine. The air supply distributor is connected with air cylinders of the diesel engine through pipelines. The air supply distributor is further connected with the air supply air bottle and the main air bottle in sequence. A solenoid valve is arranged between the air supply air bottle and the air supply distributor. A pressure reducing valve and an air purifier are arranged between the main air bottle and the air supply air bottle. The sequential turbocharging switching gas supply device of the diesel engine can be used for directly supplying air for the air cylinders of the diesel engines in the switching process so as to ensure air intake of the diesel engine, enables the sequential turbocharging switching process to be stable, and prevents black smoke.
Description
Technical field
The utility model relates to a kind of diesel engine, specifically turbo-charged diesel.
Background technique
The sequential pressurizing technology is the technology that late 1970s West Germany MTU company at first adopts, its design mainly is in order to enlarge the operating range of low compression ratio, high blower engine, the fuel consumption rate when increasing the low speed torque of motor and reducing operation at part load.Its basic principle is to adopt a plurality of turbosupercharger, with engine speed and load increasing, put into operation in succession in order, so just can guarantee that the turbosupercharger that work moves at high efficient area all the time, so that the fuel consumption rate of motor is all lower in whole running district, low-speed big is functional.
In diesel engine sequential pressurizing handoff procedure, gas valve and air valve are successively opened, the controlled boost device is devoted oneself to work, in this handoff procedure, because the influence of the factors such as compressibility of gas in the existence of pressurized machine rotary inertia and the pipeline that links to each other with motor, cause the controlled boost device not make an immediate response, air valve must be later than the gas valve regular hour and open, to prevent that gas compressor enters the surge region operation in the transient state handoff procedure.Yet because air valve lags behind gas valve and opens, thereby make the instantaneous minimizing of basic pressurized machine exhaust gas flow, the pressurized air flow that it provides and pressure ratio descend, but the controlled boost device can not provide pressurized air to motor again, therefore cause before and after the handoff procedure that engine air-fuel ratio is instantaneous to be reduced and increase, the rotating speed rapid fluctuation moves not steady.If pressurization system cooperates bad with motor or switching controls is improper, gas compressor enters the surge region operation most probably, and motor may be subjected to bigger thermal shock.
Also directly do not replenish the relevant report that forced air improves the sequential pressurizing handoff procedure to cylinder of diesel engine at present.
Summary of the invention
The purpose of this utility model is to provide and can remedies because the diesel engine sequential pressurizing that the suction pressure that turbosupercharger short time exhaust energy deficiency causes descends switches making-up air device.
The purpose of this utility model is achieved in that
The utility model diesel engine sequential pressurizing switches making-up air device, comprise basic pressurized machine, the controlled boost device, basic pressurized machine all is connected diesel engine with the controlled boost device, it is characterized in that: also comprise main air bottle, the tonifying Qi air bottle, the tonifying Qi distributor, between the gas compressor of controlled boost device and the diesel engine air valve is installed, between the turbine of controlled boost device and the diesel engine gas valve is installed, the tonifying Qi distributor links to each other with each cylinder of diesel engine by pipeline, the tonifying Qi distributor also with the tonifying Qi air bottle, main air bottle links to each other successively, between tonifying Qi air bottle and the tonifying Qi distributor solenoid valve is installed, reduction valve and air cleaner are installed between main air bottle and the tonifying Qi air bottle.
The utility model can also comprise:
1, mounting point sensor on the camshaft of tonifying Qi distributor.
Advantage of the present utility model is: the utility model can to guarantee the air inflow of diesel engine, make the sequential pressurizing handoff procedure become more steady to the direct tonifying Qi of cylinder of diesel engine in this handoff procedure, prevents over-emitting black exhaust.
Description of drawings
Fig. 1 is the structural representation that the utility model diesel engine sequential pressurizing switches making-up air device;
Fig. 2 is the flow chart that the utility model diesel engine sequential pressurizing switches supplementing method for air.
Embodiment
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～2, the utility model diesel engine sequential pressurizing switches making-up air device and comprises controlled boost device 1, gas valve 2, basic pressurized machine 3, cylinder of diesel engine 4, distributor is to cylinder air pipe 5, main air bottle 6, air cleaner 7, reduction valve 8, tonifying Qi air bottle 9, solenoid valve 10, tonifying Qi distributor (air distributor) 11, distributor camshaft 12, distributor (starting or tonifying Qi) cam position conversion equipment 13, camshaft converted command signal line 14, position sensor signal line 15, tonifying Qi control gear 16, sequential pressurizing switching control 17, time delay device 18, air valve 19, position transducer 20.Solenoid valve 10 1 ends connect distributor 11, and the other end links to each other with tonifying Qi air bottle 9.Position transducer 20 is to gather distributor camshaft location situation, and tonifying Qi control gear 16 will collect also whether camera supercharging switching signal is arranged, and solenoid valve 10 instructions are from tonifying Qi control gear 16.Tonifying Qi source of the gas 9 links to each other by solenoid valve 10, distributor 11 with the air distributor pipe of each cylinder, in order to replenish camera supercharged diesel engine air inflow in (by air inlet regularly) cylinder of diesel engine in handoff procedure, solenoid valve 10 is installed, in order to beginning and the concluding time of controlling tonifying Qi, at distributor (starting or tonifying Qi) cam position mounting point sensor 20, detect distributor camshaft 12 positions, tonifying Qi control gear 16 is gathered signal and the camera supercharging switching signal of CMPS Camshaft Position Sensor 20 and is controlled the switch of solenoid valve 10.Sequential supercharged diesel engine is not having when switching, solenoid valve 10 cuts out, when the sequential pressurizing switching command, time-delay is earlier switched, tonifying Qi control gear 16 is according to switching signal, at first gather camshaft location 12 signals, it is the tonifying Qi position, send and open the solenoid valve instruction, not just to send switching signal to cam position conversion equipment 13, make distributor camshaft 12 go to the tonifying Qi position, open tonifying Qi solenoid valve 10 again, the gas valve 2 and the air valve 19 that switch carry out tonifying Qi when switching, make the forced air in the tonifying Qi source of the gas 9 pass through solenoid valve 10, distributor 11, distributor to cylinder air pipe directly enters cylinder of diesel engine 4, after a period of time is finished in camera supercharging switching, close solenoid valve 10.
The flow process that the utility model diesel engine sequential pressurizing switches supplementing method for air is: the air of boats and ships main air bottle (3.0MPa) to tonifying Qi air bottle 9, arrives the tonifying Qi solenoid valve again after purification and decompression.The tonifying Qi control gear is gathered camshaft-position signal 15, gather simultaneously whether camera supercharging switching signal 17 is arranged, when the sequential pressurizing switching command, switched by time delay device 18 time-delays earlier, be gas valve 2 and air valve 19 deferred actions, be conducive to the preparation (camshaft location converts) of tonifying Qi control gear, after tonifying Qi control gear 16 obtains switching signal in addition, at first gather camshaft-position signal 15, if camshaft location is the tonifying Qi position, send OPEN to tonifying Qi solenoid valve 10, if camshaft location is the starting position, tonifying Qi control gear 16 will send switching signal to cam position conversion equipment 13, make distributor camshaft 12 go to the tonifying Qi position, send OPEN to tonifying Qi solenoid valve 10 again, open the gas valve 2 and air valve 19 of switching simultaneously, when switching, carry out tonifying Qi, make the forced air in the tonifying Qi air bottle 9 pass through solenoid valve 10, distributor 11, distributor to cylinder air pipe 5 directly enters cylinder of diesel engine 4, after a period of time is finished in camera supercharging switching, close solenoid valve.
Claims (2)
1. the diesel engine sequential pressurizing switches making-up air device, comprise basic pressurized machine, the controlled boost device, basic pressurized machine all is connected diesel engine with the controlled boost device, it is characterized in that: also comprise main air bottle, the tonifying Qi air bottle, the tonifying Qi distributor, between the gas compressor of controlled boost device and the diesel engine air valve is installed, between the turbine of controlled boost device and the diesel engine gas valve is installed, the tonifying Qi distributor links to each other with each cylinder of diesel engine by pipeline, the tonifying Qi distributor also with the tonifying Qi air bottle, main air bottle links to each other successively, between tonifying Qi air bottle and the tonifying Qi distributor solenoid valve is installed, reduction valve and air cleaner are installed between main air bottle and the tonifying Qi air bottle.
2. diesel engine sequential pressurizing according to claim 1 switches making-up air device, it is characterized in that: mounting point sensor on the camshaft of tonifying Qi distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206589815U CN203035339U (en) | 2012-12-04 | 2012-12-04 | Sequential turbocharging switching gas supply device of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206589815U CN203035339U (en) | 2012-12-04 | 2012-12-04 | Sequential turbocharging switching gas supply device of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035339U true CN203035339U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206589815U Withdrawn - After Issue CN203035339U (en) | 2012-12-04 | 2012-12-04 | Sequential turbocharging switching gas supply device of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035339U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016139A (en) * | 2012-12-04 | 2013-04-03 | 哈尔滨工程大学 | Sequential turbocharging switching air supplementing device and method of diesel engine |
| CN105275587A (en) * | 2014-07-11 | 2016-01-27 | 通用汽车环球科技运作有限责任公司 | Engine with cylinder deactivation and multi-stage turbocharging system |
| CN111022178A (en) * | 2019-11-12 | 2020-04-17 | 安庆中船柴油机有限公司 | Air supplement unit for reducing black smoke amount in combined emission period of diesel engine |
-
2012
- 2012-12-04 CN CN2012206589815U patent/CN203035339U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016139A (en) * | 2012-12-04 | 2013-04-03 | 哈尔滨工程大学 | Sequential turbocharging switching air supplementing device and method of diesel engine |
| CN103016139B (en) * | 2012-12-04 | 2015-05-20 | 哈尔滨工程大学 | Sequential turbocharging switching air supplementing device and method of diesel engine |
| CN105275587A (en) * | 2014-07-11 | 2016-01-27 | 通用汽车环球科技运作有限责任公司 | Engine with cylinder deactivation and multi-stage turbocharging system |
| US9945329B2 (en) | 2014-07-11 | 2018-04-17 | GM Global Technology Operations LLC | Engine with cylinder deactivation and multi-stage turbocharging system |
| CN111022178A (en) * | 2019-11-12 | 2020-04-17 | 安庆中船柴油机有限公司 | Air supplement unit for reducing black smoke amount in combined emission period of diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20150520 |
|
| RGAV | Abandon patent right to avoid regrant |