CN106837527A - Diesel engine consecutive pressurization system lubrication system - Google Patents
Diesel engine consecutive pressurization system lubrication system Download PDFInfo
- Publication number
- CN106837527A CN106837527A CN201710050295.7A CN201710050295A CN106837527A CN 106837527 A CN106837527 A CN 106837527A CN 201710050295 A CN201710050295 A CN 201710050295A CN 106837527 A CN106837527 A CN 106837527A
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- Prior art keywords
- controlled
- boost device
- diesel engine
- basic
- outlet
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Supercharger (AREA)
Abstract
It is an object of the invention to provide diesel engine consecutive pressurization system lubrication system, including diesel engine body, basic booster, controlled boost device, oil pump and scavenge oil pump, the exhaust outlet of diesel engine body is connected with basic turbine and controlled turbine respectively, basic turbine and controlled turbine connect air, basic compressor and controlled compressor connect charge air cooler respectively, charge air cooler connects the air inlet of diesel engine body, the outlet of oil pump connects axial grease entrance with basic booster respectively and controlled boost device connection axial grease entrance is connected, basic booster connection shaft oil outlet and controlled boost device connection shaft oil outlet are connected with oil return pump intake, oil return pump discharge is connected with lubricating oil pump intake.The present invention is separately provided electrical ball valve by controlled boost device lubricating oil branch road, can effectively solve the problems, such as controlled boost device lubrication leakage under Part load, and total is simple, it is easy to arrangement and realization, can significantly lift the utilization ratio of lubricating oil.
Description
Technical field
The present invention relates to a kind of diesel engine, specifically marine diesel.
Background technology
Sequential pressurizing (Sequential Turbo Charging) system abbreviation STC systems, by 2 or more than 2 turbines
Booster composes in parallel pressure charging system, with the growth of engine with supercharger rotating speed and load, puts into operation in order in succession.Turning
When speed or load are less than certain setting value, the air supply of the waste gas and compressor of one or several booster turbine of cut-out makes
The booster turbine that work is flowed through in exhaust gas centralized, increases its exhaust gas flow, improve turbine efficiency such that it is able to make full use of useless
Gas energy, improves boost pressure, improves fuel economy, dynamic property and the emission performance of the low operating mode of diesel engine.And work as engine and turn
When speed or load are higher than certain setting value, cut-off one or several boosters put back into, to ensure the height of engine
Performance of operating condition.
In current consecutive pressurization system, generally using 2 working methods of booster, it is respectively basic booster and receives
Control booster.When low operating mode, only basic booster is devoted oneself to work, when in operating mode high, basic booster and controlled increasing
Depressor is devoted oneself to work simultaneously.
Booster operationally, the working condition in rotating speed high, high temperature, it is therefore necessary to ensure enough lubricating conditions.
When booster works, when high pressure lubricating oil enters booster connection shaft by lubricating oil entrance, because compressor side high pressure is empty
The presence of gas, serves the effect of sealing gland, can effectively it is close prevent lubricating oil leakage.
When controlled boost device cuts out work, the lubricating oil branch road at place continues to remain on, but booster has stopped
Work, " sealing gland effect " disappears, therefore just generates Leakage, and this is also of existing consecutive pressurization system generally existing
Problem.Do not occur the correlation technique or patent that solve this problem also at present.
The content of the invention
It is an object of the invention to provide the lubrication leakage that can effectively solve the problems, such as controlled boost device under Part load, carry
The utilization ratio of lubricating oil high, significantly reduces the diesel engine consecutive pressurization system lubrication system of energy loss.
The object of the present invention is achieved like this：
Diesel engine consecutive pressurization system lubrication system of the present invention, including diesel engine body, basic booster, controlled boost
Device, it is characterized in that：Also include oil pump and scavenge oil pump, basic booster includes basic turbine and basic compressor, controlled boost
Device includes controlled turbine and controlled compressor, the exhaust outlet of diesel engine body respectively with the entrance of basic turbine and controlled turbine
Entrance is connected, and the outlet of basic turbine and the outlet of controlled turbine connect air, the outlet of basic compressor and by pressure control
The outlet of mechanism of qi connects the entrance of charge air cooler respectively, and the air inlet of the outlet connection diesel engine body of charge air cooler, oil pump goes out
Mouth connects axial grease entrance with basic booster respectively and controlled boost device connection axial grease entrance is connected, and basic booster connects
Axis oil outlet and controlled boost device connection shaft oil outlet are connected with oil return pump intake, and oil return pump discharge is pumped into lubricating oil
Mouth is connected.
The present invention can also include：
The 1st, gas valve is installed on the pipeline between controlled turbine inlet and diesel engine body air exit, controlled compressor
Air valve is installed, electrical ball valve is installed in controlled boost device connection shaft lubricating inlet front end on the pipeline between outlet and charge air cooler,
Electrical ball valve entrance front end is installed by pressure sensor.
2nd, electrical ball valve is no more than 15 centimetres apart from controlled boost device connection axial grease entrance.
3rd, Real-time Collection pressure sensor fuel injection pressure signal, when oil pressure meets to impose a condition, controlled boost device puts into operation,
Electrical ball valve is opened, and the lubricating oil of controlled boost device connection shaft puts into operation；After controlled boost device cuts out work, electrical ball valve is closed
Close, the lubricating oil of controlled boost device connection shaft cuts out operation.
Advantage of the invention is that：The present invention keep consecutive pressurization system lubrication system on the basis of, by controlled
Electrical ball valve is separately provided in booster lubricating oil branch road, controlled boost device lubrication leakage is asked under can effectively solving Part load
Topic, total is simple, it is easy to arrangement and realization, can significantly lift the utilization ratio of lubricating oil, energy saving.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1, a kind of diesel engine consecutive pressurization system lubrication system of the invention, including diesel engine body 12, diesel engine
Air inlet-outlet pipe, charge air cooler 11, basic booster, controlled boost device, gas valve 9, air valve 10, electrical ball valve 3, pressure sensor
4th, oil pump 7, scavenge oil pump 8.It is characterized in that basic booster is made up of basic turbine 1 and basic compressor 2, controlled boost device
It is made up of controlled turbine 6 and controlled compressor 5；Diesel exhaust gas outlet respectively with the entrance of basic turbine 1 and the entrance of controlled turbine 6
It is connected, the outlet of basic turbine 1 and the outlet of controlled turbine 6 are respectively connected to air；The basic outlet of compressor 2 and controlled compressor 5 and
The entrance of charge air cooler 11 is connected；Oil pump 7 is exported and connects axial grease entrance and controlled boost device connection shaft with basic booster respectively
Entrance is connected, and basic booster connection shaft oil outlet and controlled boost device connection axial outlet are connected with the entrance of scavenge oil pump 8, oil return
The outlet of pump 8 is connected with the entrance of oil pump 7；
Gas valve 9 is arranged between the entrance of controlled turbine 6 and diesel exhaust gas outlet, and air valve 10 is arranged on controlled calming the anger
Machine 5 is exported and charge air cooler entrance between, and electrical ball valve 3 is arranged on controlled boost device connection axial grease entrance front end, pressure sensing
Device 4 is arranged on the entrance front end of electrical ball valve 5.
Electrical ball valve 3 is at 15cm before controlled boost device lubricating oil entrance.
Lubricating oil pressure in the Real-time Collection controlled boost device lubricating oil branch road of pressure sensor 4 before electrical ball valve 3.According to oil pressure
The opening and closing of electrical ball valve 3 are controlled with reference to the running status of diesel engine.
Specific control strategy is such：
According to the running status of diesel engine, the fuel injection pressure signal of Real-time Collection pressure sensor 4, when meeting booster working oil
During press strip part, controlled boost device puts into operation, opens electrical ball valve 3, and controlled boost device lubricating oil circulation loop puts into operation；When receiving
When control booster cuts out work, electrical ball valve 5 is closed, controlled boost device circulation loop is closed.
The various pipe arrangements of diesel engine in Fig. 1 are not limited by the present invention, because they are composition supercharged diesel engine systems
The important component of system.
The main lubricating oil structure to controlled boost device in the consecutive pressurization system of diesel engine of the invention is protected, specifically
Say refer to electrical ball valve and pressure sensor arrangement, i.e., be separately provided the He of electrical ball valve 3 before controlled boost device lubricating oil entrance
Pressure sensor 4, effectively solves the problems, such as the lubrication leakage of controlled boost device under Part load, and significantly lift lubricating oil utilizes effect
Rate.
Claims (5)
1. diesel engine consecutive pressurization system lubrication system, including diesel engine body, basic booster, controlled boost device, its feature
It is：Also include oil pump and scavenge oil pump, basic booster includes basic turbine and basic compressor, and controlled boost device includes controlled
Turbine and controlled compressor, the exhaust outlet of diesel engine body are connected with the entrance of basic turbine and the entrance of controlled turbine respectively,
The basic outlet of turbine and the outlet of controlled turbine connect air, the outlet and the outlet of controlled compressor of basic compressor
Connect the entrance of charge air cooler respectively, the air inlet of the outlet connection diesel engine body of charge air cooler, the outlet of oil pump respectively with base
This booster connects axial grease entrance and controlled boost device connection axial grease entrance is connected, and basic booster connection axial grease goes out
Mouth and controlled boost device connection shaft oil outlet are connected with oil return pump intake, and oil return pump discharge is connected with lubricating oil pump intake.
2. diesel engine consecutive pressurization system lubrication system according to claim 1, it is characterized in that：Controlled turbine inlet and bavin
Gas valve is installed on the pipeline between oil machine body air exit, is pacified on the pipeline between the outlet of controlled compressor and charge air cooler
Electrical ball valve is installed in dress air valve, controlled boost device connection shaft lubricating inlet front end, and electrical ball valve entrance front end is installed pressure and passed
Sensor.
3. diesel engine consecutive pressurization system lubrication system according to claim 1 and 2, it is characterized in that：Electrical ball valve distance
Controlled boost device connection axial grease entrance is no more than 15 centimetres.
4. diesel engine consecutive pressurization system lubrication system according to claim 1 and 2, it is characterized in that：Real-time Collection pressure
Sensor fuel injection pressure signal, when oil pressure meets to impose a condition, controlled boost device is put into operation, and electrical ball valve is opened, controlled boost
The lubricating oil of device connection shaft puts into operation；After controlled boost device cuts out work, electrical ball valve is closed, controlled boost device connection shaft
Lubricating oil cuts out operation.
5. diesel engine consecutive pressurization system lubrication system according to claim 3, it is characterized in that：Real-time Collection pressure sensing
Device fuel injection pressure signal, when oil pressure meets to impose a condition, controlled boost device is put into operation, and electrical ball valve is opened, and controlled boost device connects
The lubricating oil of axis puts into operation；After controlled boost device cuts out work, electrical ball valve is closed, the lubricating oil of controlled boost device connection shaft
Cut out operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050295.7A CN106837527A (en) | 2017-01-23 | 2017-01-23 | Diesel engine consecutive pressurization system lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050295.7A CN106837527A (en) | 2017-01-23 | 2017-01-23 | Diesel engine consecutive pressurization system lubrication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106837527A true CN106837527A (en) | 2017-06-13 |
Family
ID=59119722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710050295.7A Pending CN106837527A (en) | 2017-01-23 | 2017-01-23 | Diesel engine consecutive pressurization system lubrication system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757162A (en) * | 2018-06-25 | 2018-11-06 | 南京世界村汽车动力有限公司 | A kind of vehicle engine booster oil return pipe degasification structure |
| CN110107395A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of fuel feeding hollow screw structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221427A (en) * | 1983-05-27 | 1984-12-13 | Fuji Heavy Ind Ltd | Cooler for internal-combustion engine with supercharger |
| CN2507999Y (en) * | 2001-12-07 | 2002-08-28 | 贵阳风云通用机械新技术开发有限公司 | Independent lubricating device for turbocharger |
| US20100281862A1 (en) * | 2008-01-10 | 2010-11-11 | Mitsubishi Heavy Industries, Ltd. | Marine diesel engine |
| CN102979615A (en) * | 2012-11-19 | 2013-03-20 | 哈尔滨工程大学 | Diesel engine sequential turbocharging structure with anti-surge function |
| CN103032152A (en) * | 2012-11-29 | 2013-04-10 | 哈尔滨工程大学 | Diesel engine sequential supercharging structure with air supplementing function |
| CN105221244A (en) * | 2015-10-23 | 2016-01-06 | 哈尔滨工程大学 | A kind of sequential supercharged diesel engine device peculiar to vessel and controlling method thereof |
-
2017
- 2017-01-23 CN CN201710050295.7A patent/CN106837527A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221427A (en) * | 1983-05-27 | 1984-12-13 | Fuji Heavy Ind Ltd | Cooler for internal-combustion engine with supercharger |
| CN2507999Y (en) * | 2001-12-07 | 2002-08-28 | 贵阳风云通用机械新技术开发有限公司 | Independent lubricating device for turbocharger |
| US20100281862A1 (en) * | 2008-01-10 | 2010-11-11 | Mitsubishi Heavy Industries, Ltd. | Marine diesel engine |
| CN102979615A (en) * | 2012-11-19 | 2013-03-20 | 哈尔滨工程大学 | Diesel engine sequential turbocharging structure with anti-surge function |
| CN103032152A (en) * | 2012-11-29 | 2013-04-10 | 哈尔滨工程大学 | Diesel engine sequential supercharging structure with air supplementing function |
| CN105221244A (en) * | 2015-10-23 | 2016-01-06 | 哈尔滨工程大学 | A kind of sequential supercharged diesel engine device peculiar to vessel and controlling method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757162A (en) * | 2018-06-25 | 2018-11-06 | 南京世界村汽车动力有限公司 | A kind of vehicle engine booster oil return pipe degasification structure |
| CN110107395A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of fuel feeding hollow screw structure |
| CN110107395B (en) * | 2019-04-02 | 2020-10-09 | 中国北方发动机研究所(天津) | Oil supply hollow screw structure |
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Application publication date: 20170613 |