CN103884510B - The gas blowby exception of engine and the detection method of the correlativity of supercharger - Google Patents
The gas blowby exception of engine and the detection method of the correlativity of supercharger Download PDFInfo
- Publication number
- CN103884510B CN103884510B CN201410134493.8A CN201410134493A CN103884510B CN 103884510 B CN103884510 B CN 103884510B CN 201410134493 A CN201410134493 A CN 201410134493A CN 103884510 B CN103884510 B CN 103884510B
- Authority
- CN
- China
- Prior art keywords
- engine
- gas
- air leak
- supercharger
- leak amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of gas blowby exception of engine and the detection method of the correlativity of supercharger, detection method comprises the steps: to start the engine broken down, and is detected the air leak amount of engine, as the first air leak amount by checkout equipment; Stop engine, the scavenge pipe of the supercharger of engine is extracted from spill port, then with plug, spill port is blocked; Starting engine again, detects the air leak amount of engine, as the second air leak amount by checkout equipment; Judge engine blow-by gas exception and the correlativity of supercharger, if the second air leak amount is less than the first air leak amount, then judge that engine blow-by gas is abnormal relevant with the Leakage Gas of supercharger; Otherwise judge that engine blow-by gas is abnormal to have nothing to do with the Leakage Gas of supercharger, then the abrasion condition of engine piston ring and cylinder sleeve is checked.The present invention gets rid of order by mapping fault, judges engine blow-by gas exception and the correlativity of supercharger Leakage Gas fast, can accelerate fault handling speed, enhance productivity.
Description
Technical field
The present invention relates to engine art, particularly a kind of gas blowby exception of engine and the detection method of the correlativity of supercharger.
Background technology
The abnormal performance directly affecting engine of engine blow-by gas, air leak amount off technical requirement can cause engine output to decline, and the oil consumption of machine oil exceeds standard, and causes the adverse consequencess such as environmental pollution.Engine blow-by gas is abnormal many reasons, and first maintenance personal can judge that whether main cause is the wearing and tearing of engine piston ring and cylinder sleeve.But need disintegration engine, complicated operation, take time and effort.
It is another kind of reason that supercharger internal gas leaks, during turbocharger operation, pneumatic plant end air pressure, turbine end gaseous-pressure are different from lubricating oil pressure in bearing body, therefore, between pneumatic plant and bearing and can there is the phenomenon of the mutual seepage of oil gas between turbine and bearing body, the gas leaked from supercharger enters in engine by the scavenge pipe of supercharger, causes engine blow-by gas abnormal, but this reason is more hidden, not easily discovers.
The order of fixing a breakdown in prior art reduces fault detection efficiency, and clearly cannot judge the reason of the Leakage Gas except the wearing and tearing of engine piston ring and cylinder sleeve.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide the abnormal detection method with the correlativity of supercharger of a kind of gas blowby of engine, thus overcome the shortcoming of the reason of the Leakage Gas that cannot clearly judge except the wearing and tearing of engine piston ring and cylinder sleeve.
For achieving the above object, the invention provides a kind of gas blowby exception of engine and the detection method of the correlativity of supercharger, detection method comprises the steps: to start the engine broken down, and is detected the air leak amount of engine, as the first air leak amount by checkout equipment; Stop engine, the scavenge pipe of the supercharger of engine is extracted from spill port, then with plug, spill port is blocked; Starting engine again, detects the air leak amount of engine, as the second air leak amount by checkout equipment; Judge engine blow-by gas exception and the correlativity of supercharger, if the second air leak amount is less than the first air leak amount, then judge that engine blow-by gas is abnormal relevant with the Leakage Gas of supercharger; Otherwise judge that engine blow-by gas is abnormal to have nothing to do with the Leakage Gas of supercharger, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
In technique scheme, judge that engine blow-by gas is abnormal and also comprise with the step of the correlativity of supercharger: if the second air leak amount is within the scope of the standard air leak amount of engine, then judge that the abnormal Leakage Gas primarily of supercharger of engine blow-by gas causes; If the second air leak amount is less than the first air leak amount, but the second air leak amount is not within the scope of the standard air leak amount of engine, then judge that the Leakage Gas of supercharger is not the sole cause of engine blow-by gas exception, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
Compared with prior art, the present invention has following beneficial effect:
The present invention gets rid of order by mapping fault, engine is being disintegrated, before the abrasion condition checking engine piston ring and cylinder sleeve, by pulling out the scavenge pipe of supercharger, the method of the air leak amount of comparison engine, quick judgement engine blow-by gas exception and the correlativity of supercharger Leakage Gas, can accelerate fault handling speed, enhance productivity.。
Accompanying drawing explanation
Fig. 1 is the process flow diagram according to determination methods of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole instructions and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
As shown in Figure 1, whether supercharger Leakage Gas of the present invention is that the method for the main cause of engine blow-by gas exception comprises the steps:
Start the engine broken down, detected the air leak amount of engine by checkout equipment, as the first air leak amount;
Stop engine, the scavenge pipe of engine supercharger is extracted from spill port, then with plug, spill port is blocked;
Starting engine again, detects the air leak amount of engine, as the second air leak amount by checkout equipment;
Judge the correlativity of engine blow-by gas exception and supercharger Leakage Gas.If the second air leak amount is less than the first air leak amount, then judge that engine blow-by gas is abnormal relevant with the Leakage Gas of supercharger; Otherwise judge that engine blow-by gas is abnormal to have nothing to do with the Leakage Gas of supercharger, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
Specifically, if the second air leak amount is within the scope of the standard air leak amount of engine, then judge that the abnormal Leakage Gas primarily of supercharger of engine blow-by gas causes; If the second air leak amount is less than the first air leak amount, but the second air leak amount is not within the scope of the standard air leak amount of engine, then judge that the Leakage Gas of supercharger is not the sole cause of engine blow-by gas exception, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
The present invention gets rid of order by mapping fault, engine is being disintegrated, before the abrasion condition checking engine piston ring and cylinder sleeve, by pulling out the scavenge pipe of supercharger, the method of the air leak amount of comparison engine, quick judgement engine blow-by gas exception and the correlativity of supercharger Leakage Gas, can accelerate fault handling speed, enhance productivity.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (2)
1. the gas blowby exception of engine and a detection method for the correlativity of supercharger, it is characterized in that, described detection method comprises the steps:
Start the engine broken down, detected the air leak amount of described engine by checkout equipment, as the first air leak amount;
Stop described engine, the scavenge pipe of the supercharger of engine is extracted from spill port, then with plug, described spill port is blocked;
Again start described engine, detected the air leak amount of described engine by checkout equipment, as the second air leak amount;
Judge engine blow-by gas exception and the correlativity of supercharger, if the second air leak amount is less than the first air leak amount, then judge that engine blow-by gas is abnormal relevant with the Leakage Gas of described supercharger; Otherwise judge that engine blow-by gas is abnormal to have nothing to do with the Leakage Gas of described supercharger, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
2. the detection method of the gas blowby exception of engine according to claim 1 and the correlativity of supercharger, is characterized in that, described judgement engine blow-by gas is abnormal also to be comprised with the step of the correlativity of supercharger:
If described second air leak amount is less than described first air leak amount, and described second air leak amount is within the scope of the standard air leak amount of engine, then judge that the abnormal Leakage Gas primarily of described supercharger of engine blow-by gas causes; If described second air leak amount is less than described first air leak amount, but described second air leak amount is not within the scope of the standard air leak amount of engine, then judge that the Leakage Gas of described supercharger is not the sole cause of engine blow-by gas exception, then the abrasion condition of engine piston ring and cylinder sleeve is checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134493.8A CN103884510B (en) | 2014-04-02 | 2014-04-02 | The gas blowby exception of engine and the detection method of the correlativity of supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134493.8A CN103884510B (en) | 2014-04-02 | 2014-04-02 | The gas blowby exception of engine and the detection method of the correlativity of supercharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103884510A CN103884510A (en) | 2014-06-25 |
| CN103884510B true CN103884510B (en) | 2016-02-24 |
Family
ID=50953529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134493.8A Active CN103884510B (en) | 2014-04-02 | 2014-04-02 | The gas blowby exception of engine and the detection method of the correlativity of supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103884510B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677637A (en) * | 2015-03-11 | 2015-06-03 | 句容五星机械制造有限公司 | Method for detecting large engine oil consumption amount of diesel engine |
| CN110748415B (en) * | 2019-11-23 | 2024-03-01 | 广西玉柴机器股份有限公司 | Engine blowby gas fault monitoring device and method capable of being used for whole vehicle |
| CN114810347B (en) * | 2022-05-12 | 2024-03-19 | 潍柴动力股份有限公司 | Control method for vehicle respiratory system and vehicle respiratory system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117683A (en) * | 1990-02-06 | 1992-06-02 | Uis, Inc. | Method of measuring leakage in fuel injector system |
| EP0785358A2 (en) * | 1996-01-19 | 1997-07-23 | C.R.F. Società Consortile per Azioni | Method and unit for diagnosing leakage of an internal combustion engine high-pressure injection system |
| CN201007691Y (en) * | 2007-01-31 | 2008-01-16 | 重庆宗申技术开发研究有限公司 | Engine crankcase air leak amount testing device |
| CN202117733U (en) * | 2011-06-23 | 2012-01-18 | 潍柴动力股份有限公司 | Oil-gas separator and crankshaft case gas blowby quantity detection control system provided with same |
| CN202994398U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Test apparatus for amount of air leakage of booster |
-
2014
- 2014-04-02 CN CN201410134493.8A patent/CN103884510B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117683A (en) * | 1990-02-06 | 1992-06-02 | Uis, Inc. | Method of measuring leakage in fuel injector system |
| EP0785358A2 (en) * | 1996-01-19 | 1997-07-23 | C.R.F. Società Consortile per Azioni | Method and unit for diagnosing leakage of an internal combustion engine high-pressure injection system |
| CN201007691Y (en) * | 2007-01-31 | 2008-01-16 | 重庆宗申技术开发研究有限公司 | Engine crankcase air leak amount testing device |
| CN202117733U (en) * | 2011-06-23 | 2012-01-18 | 潍柴动力股份有限公司 | Oil-gas separator and crankshaft case gas blowby quantity detection control system provided with same |
| CN202994398U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Test apparatus for amount of air leakage of booster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103884510A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103884510B (en) | The gas blowby exception of engine and the detection method of the correlativity of supercharger | |
| RU2014133935A (en) | Method and system for rules for diagnosing powerful gas turbines | |
| EP2615260A3 (en) | Gas turbine engine bearing chamber seals | |
| GB2533351A8 (en) | Internal combustion engine having a two stage turbocharger | |
| EA201591991A1 (en) | METHOD AND SYSTEM FOR DIAGNOSTIC VALVE RECIRCULATION OF EXHAUST GASES ON THE BASIS OF THE PRESSURE IN THE ENGINE CARTER | |
| EP2154348A3 (en) | Engine braking method and system | |
| WO2014060831A3 (en) | Blowby gas ventilation system for supercharger-equipped internal combustion engine | |
| EP2615259A3 (en) | Gas turbine engine bearing chamber seals | |
| CN104454226A (en) | Engine piston assembly | |
| CN204388450U (en) | For the chilled water system of the buried construction of Diversion Tunnels cooling of High-geotemperature | |
| MX2017003006A (en) | Method and system for providing torque-assist. | |
| CN201857999U (en) | Compressed air sealing device for oil seal | |
| CN107091167A (en) | A kind of active sealing device for friction force measurement system between piston ring and cylinder | |
| CN104975979A (en) | Novel piston ring | |
| CN202520958U (en) | Gas sealing system for hydrogenerator | |
| CN107907340B (en) | Low-pressure engine ignition test equipment with air supplement ring device | |
| CN105115669B (en) | A kind of cylinder head fuel oil fuel feed hole leak test component and its leak testing process | |
| CN205101050U (en) | Prevent steam turbine axle gland leak -off device | |
| CN201730896U (en) | Engineering machine and hydraulic cylinder thereof | |
| CN204900095U (en) | Novel piston ring | |
| CN206397691U (en) | A kind of piston rod seal of double-operation diaphragm compressor | |
| CN204804967U (en) | A piston for on engine | |
| CN204964128U (en) | Cylinder head fuel inlet port leak test subassembly | |
| CN201321911Y (en) | Motor piston with reduced air leakage amount | |
| CN202370672U (en) | Single cylinder sealing device of internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |