CN104234775A - Measurement method of key pressure of lubricating system - Google Patents
Measurement method of key pressure of lubricating system Download PDFInfo
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- CN104234775A CN104234775A CN201410354095.7A CN201410354095A CN104234775A CN 104234775 A CN104234775 A CN 104234775A CN 201410354095 A CN201410354095 A CN 201410354095A CN 104234775 A CN104234775 A CN 104234775A
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- oil pressure
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Abstract
The invention relates to the field of an engine lubrication system, in particular to a measurement method of the key pressure of a lubricating system. The measurement method of the key pressure of the lubricating system comprises the steps of A, punching in the position where the oil pressure needs to be monitored; B, installing an adapter at the position where the oil pressure needs to be monitored; C, introducing the oil pressure into a pressure sensor, and measuring the oil pressure; D, analyzing according to the measurement result. After the measurement method is applied, whether an oil way of an engine is smooth or not in the testing process can be known, whether parts have enough pressure for lubrication and normal work or not can be known, the root of a problem can be rapidly locked when abnormal pressure is found in the monitoring process, and the problem can be better solved; the measured actual pressure can be combined with CAE (computer aided engineering) analysis, so that a pipeline having overhigh pressure drop can be known, and a direction is provided for pipeline design optimization and manufacturing quality optimization.
Description
Technical field
The present invention relates to engine lubrication system field, particularly relate to a kind of lubrication system key pressure method of measurement.
Background technique
In engine rig test, only motor main oil gallery pressure is monitored, for analyzing oil circulation state and the part lubricating status of motor.And often generating portion blocking in oil circuit branch road, leak, for shortage of oil time, they are remarkable on the impact of main oil gallery pressure, therefore not easily discover.Until when part occurs to lose efficacy, just start to search problem.Now may there is irremediable loss.
Summary of the invention
For the defect existed in prior art or deficiency, technical problem to be solved by this invention is: provide a kind of sliding system core pressure measurement method, can know in process of the test that whether engine oil path is unimpeded, whether part has enough pressure to carry out lubrication and normal work.
The technological scheme that the present invention takes, for providing a kind of sliding system core pressure measurement method, comprises the following steps:
A, to punch needing to monitor the position of oil pressure;
B, described need monitor oil pressure position install conversion adapter;
C, oil pressure is guided to pressure transducer measure;
D, to analyze according to measurement result.
As a further improvement on the present invention, described need to monitor the position of oil pressure comprise main oil gallery oil filter before, after cylinder body main oil gallery oil filter, oil cylinder head way admission cam shaft far-end, oil cylinder head way exhaust cam shaft far-end, air inlet OCV valve oil input channel, exhaust OCV valve oil input channel.
As a further improvement on the present invention, after described cylinder body main oil gallery oil filter, transfer pipeline is installed.
As a further improvement on the present invention, step e is also had after described step D: according to the actual pressure recorded compared with cae analysis result, as close, then part manufacturing and design conforms to, and illustrates that this design is rational; As actual measurement and CAE deviation are comparatively large, then whether existing defects causes oil circuit not smooth to need to analyze part manufacturing process.
As a further improvement on the present invention, the analytical method of described step D is
D1, measuring point engine oil pressure meet tested part lubrication needs, then illustrate that lubrication subsystem is working properly;
D2, measuring point engine oil pressure are too high, then whether normally need to analyze operation of oil pump, whether measuring point rear oil circuit is not smooth;
D3, whether measuring point engine oil pressure is on the low side, then need analysis to measure point front oil circuit not smooth.
The invention has the beneficial effects as follows: after using this method of measurement, just can know in process of the test that whether engine oil path is unimpeded, whether part has enough pressure to carry out lubrication and normal work, when finding that there is pressure anomaly in monitoring, can quick lock in question classification, be conducive to Resolving probiems; Also the actual pressure recorded can be combined with cae analysis, see if there is which section pressure-drop in pipeline excessive, to circuit design optimization and workmanship optimize provider to.
Accompanying drawing explanation
Fig. 1 is the flow chart of the sliding system core pressure measurement method of the present invention;
Fig. 2 is the present invention's sliding system core pressure measurement method exhaust side of engine measuring position figure;
Fig. 3 is the sliding system core pressure measurement method engine charge side measuring position figure of the present invention;
Fig. 4 is the present invention's sliding system core pressure measurement method engine head measuring position figure.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
Numeral in figure: 1, before main oil gallery oil filter; 2, after cylinder body main oil gallery oil filter; 3, oil cylinder head way admission cam shaft far-end; 4, oil cylinder head way exhaust cam shaft far-end; 5, air inlet OCV valve oil input channel; 6, OCV valve oil input channel is vented;
As shown in Figure 1, a kind of sliding system core pressure measurement method is provided, comprises the following steps:
A, to punch needing to monitor the position of oil pressure;
B, described need monitor oil pressure position install conversion adapter;
C, oil pressure is guided to pressure transducer measure;
D, to analyze according to measurement result.
Describedly need to monitor that the position of oil pressure to comprise before main oil gallery oil filter 1, after cylinder body main oil gallery oil filter 2, oil cylinder head way admission cam shaft far-end 3, oil cylinder head way exhaust cam shaft far-end 4, air inlet OCV valve oil input channel 5, exhaust OCV valve oil input channel 6.
Due to the engine oil pressure monitoring above position, just can know in process of the test that whether engine oil path is unimpeded, whether part has enough pressure to carry out lubrication and normal work.When finding that there is pressure anomaly in monitoring, pressure anomaly comprises overpressure and on the low side, and mainly comparing with normal historical data and CAE data, it is high or low to analyze.Find pressure to occur abnormal measuring point at first, then most problem all can appear in this section of pipeline.The method can to pipeline optimize provider to, mainly refer to lockout issue pipeline, namely problem occur region, be then optimized for this region.
After described cylinder body main oil gallery oil filter, 2 install transfer pipeline, and machine oil is caused machine oil intercooler, intercooler comprises an oil filter, monitoring equipment oil pressure on the pipeline at oil filter rear.
Step e is also had: according to the actual pressure recorded compared with cae analysis result, as close, then part manufacturing and design conforms to, and illustrates that this design is rational after described step D; As actual measurement and CAE deviation are comparatively large, then whether existing defects causes oil circuit not smooth to need to analyze part manufacturing process.Also can revise CAE model by test result, make model more accurate.The analytical method of described step D is
D1, measuring point engine oil pressure meet tested part lubrication needs, then illustrate that lubrication subsystem is working properly;
D2, measuring point engine oil pressure are too high, then whether normally need to analyze operation of oil pump, whether measuring point rear oil circuit is not smooth;
D3, whether measuring point engine oil pressure is on the low side, then need analysis to measure point front oil circuit not smooth.
Embodiment 1: once occurred the situation that in pipeline, all measured points pressure is all too high in development process, Direct Analysis is oil pump operation irregularity, takes oil pump inspection apart and finds that clamping stagnation appears in Decompression valves, cannot normally pressure release cause.
Embodiment 2: in actual applications, once all idle situation of motor inlet and outlet VVT occur.And without pressure in oil pressure monitoring display inlet and outlet OCV valve oil input channel.Then problem is locked as stopping up of oil channel, checks that part finds that bilateral OCV oil input channel does not drill through, solve after changing qualified parts.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a lubrication system key pressure method of measurement, is characterized in that: comprise the following steps:
A, to punch needing to monitor the position of oil pressure;
B, described need monitor oil pressure position install conversion adapter;
C, oil pressure is guided to pressure transducer measure;
D, to analyze according to measurement result.
2. lubrication system key pressure method of measurement according to claim 1, is characterized in that: described need to monitor the position of oil pressure comprise main oil gallery oil filter before, after cylinder body main oil gallery oil filter, oil cylinder head way admission cam shaft far-end, oil cylinder head way exhaust cam shaft far-end, air inlet OCV valve oil input channel, exhaust OCV valve oil input channel.
3. lubrication system key pressure method of measurement according to claim 1, is characterized in that: after described cylinder body main oil gallery oil filter, install transfer pipeline.
4. lubrication system key pressure method of measurement according to claim 1, it is characterized in that: also have step e after described step D: according to the actual pressure recorded compared with cae analysis result, as close, then part manufacturing and design conforms to, and illustrates that this design is rational; As actual measurement and CAE deviation are comparatively large, then whether existing defects causes oil circuit not smooth to need to analyze part manufacturing process.
5. lubrication system key pressure method of measurement according to claim 1, is characterized in that: the analytical method of described step D is
D1, measuring point engine oil pressure meet tested part lubrication needs, then illustrate that lubrication subsystem is working properly;
D2, measuring point engine oil pressure are too high, then whether normally need to analyze operation of oil pump, whether measuring point rear oil circuit is not smooth;
D3, whether measuring point engine oil pressure is on the low side, then need analysis to measure point front oil circuit not smooth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354095.7A CN104234775B (en) | 2014-07-23 | 2014-07-23 | A kind of lubricating system key pressure measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410354095.7A CN104234775B (en) | 2014-07-23 | 2014-07-23 | A kind of lubricating system key pressure measuring method |
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| CN104234775A true CN104234775A (en) | 2014-12-24 |
| CN104234775B CN104234775B (en) | 2017-06-30 |
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| CN201410354095.7A Active CN104234775B (en) | 2014-07-23 | 2014-07-23 | A kind of lubricating system key pressure measuring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203329A (en) * | 2015-10-29 | 2015-12-30 | 中国第一汽车股份有限公司 | Method for evaluating working condition of engine lubrication system |
| CN107288706A (en) * | 2017-07-06 | 2017-10-24 | 中车大连机车车辆有限公司 | High-power diesel engine moving component engine oil pressure detection method |
| CN112525415A (en) * | 2020-11-02 | 2021-03-19 | 天津钢管制造有限公司 | Pressure detection method for oil tapping pressure in oil casing coupling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220892A (en) * | 1991-05-25 | 1993-06-22 | Kloeckner-Humboldt-Deutz Aktiengesellschaft | Lubricating system |
| CN201050393Y (en) * | 2007-05-26 | 2008-04-23 | 潍柴动力股份有限公司 | Engine oil pressure detection device |
| CN201180570Y (en) * | 2008-03-28 | 2009-01-14 | 赵片 | Engine oil pressure alarm controller |
| CN103195535A (en) * | 2013-04-18 | 2013-07-10 | 河源职业技术学院 | Method and system for detecting automobile engine lubricating system state |
-
2014
- 2014-07-23 CN CN201410354095.7A patent/CN104234775B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220892A (en) * | 1991-05-25 | 1993-06-22 | Kloeckner-Humboldt-Deutz Aktiengesellschaft | Lubricating system |
| CN201050393Y (en) * | 2007-05-26 | 2008-04-23 | 潍柴动力股份有限公司 | Engine oil pressure detection device |
| CN201180570Y (en) * | 2008-03-28 | 2009-01-14 | 赵片 | Engine oil pressure alarm controller |
| CN103195535A (en) * | 2013-04-18 | 2013-07-10 | 河源职业技术学院 | Method and system for detecting automobile engine lubricating system state |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203329A (en) * | 2015-10-29 | 2015-12-30 | 中国第一汽车股份有限公司 | Method for evaluating working condition of engine lubrication system |
| CN105203329B (en) * | 2015-10-29 | 2017-11-28 | 中国第一汽车股份有限公司 | Method for assessing engine lubrication system working condition |
| CN107288706A (en) * | 2017-07-06 | 2017-10-24 | 中车大连机车车辆有限公司 | High-power diesel engine moving component engine oil pressure detection method |
| CN112525415A (en) * | 2020-11-02 | 2021-03-19 | 天津钢管制造有限公司 | Pressure detection method for oil tapping pressure in oil casing coupling |
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| CN104234775B (en) | 2017-06-30 |
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