CN106918449A - The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter - Google Patents
The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter Download PDFInfo
- Publication number
- CN106918449A CN106918449A CN201510990932.XA CN201510990932A CN106918449A CN 106918449 A CN106918449 A CN 106918449A CN 201510990932 A CN201510990932 A CN 201510990932A CN 106918449 A CN106918449 A CN 106918449A
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- China
- Prior art keywords
- oil filter
- pressure
- opening pressure
- return valve
- valve opening
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to the measurement apparatus and method of non-return valve opening pressure in a kind of oil filter, including the compressed air pump (1), pressure-regulating valve (2), pressure gauge (3), testing base (4) and the suspended body flowmeter (5) that are sequentially connected, oil filter to be tested is arranged in testing base (4)；During measurement, compressed air pump (1), regulation pressure-regulating valve (2), the reading change of observation suspended body flowmeter (5) are opened；Treat that its reading reaches 500cm3/ min, writes down the reading of now pressure gauge (3), the Opening pressure of check-valves as in the oil filter to be measured.Compared with prior art, testing cost of the present invention is cheap, result is accurate.
Description
Technical field
The present invention relates to oil filter performance test field, and in particular to check-valves is opened in a kind of oil filter
Open the measurement apparatus and method of pressure.
Background technology
Within the engine, machine oil constantly pollutes the particulate of engine scuffing and the extraneous impurity for falling into, while
The acidic materials and insoluble gelatinous precipitate of machine oil are dissolved in due to being produced by thermal oxide.It is hard in these impurity
Particle can increase the abrasion of engine, colloid can be made to be sent out between the parts such as piston and rings, valve and valve guide bushing
Rubber knot.The effect of oil filter seeks to filter the above-mentioned objectionable impurities being present in machine oil, it is ensured that lubrication
The cleaning of oil, so as to protect the parts of engine, extends its service life.So, oil filter is in lubrication
The effect of system is very big.
When machine oil reaches certain pressure, the check-valves in oil filter is pushed up out, and the machine oil of certain flow passes through
Oil filter, engine oil pressure now is referred to as the non-return valve opening pressure of the oil filter.Oil filter is stopped
It is one of main performance parameter of oil filter to return valve opening pressure, be in Engine Matching option one it is important
Consideration.For the measure of the non-return valve opening pressure of oil filter, current most common method is maintenance one
Determine the experimental oil of height, oil temperature is not all normal temperature or high temperature according to oil product, determines certain hour and passes through oil filtration
The amount of the experimental oil of device, the height of experimental oil is generally 60cm.
The defect of current this method of testing be under normal temperature low viscous experiment oil product price is high in itself, and
And experiment oil product can produce chemical reaction with some rubber in itself, may influence experimental result.If using common
Machine oil substitutes low viscous experimental oil, then need extra heating servicing unit, to reach identical viscosity, but adds
Volatile flavor can be produced in thermal process.
The content of the invention
The purpose of the present invention is exactly that to provide a kind of testing cost for the defect for overcoming above-mentioned prior art to exist low
The measurement apparatus and method of non-return valve opening pressure in the accurate oil filter of honest and clean, result.
The purpose of the present invention can be achieved through the following technical solutions：Check-valves opens pressure in a kind of oil filter
The measurement apparatus of power, including compressed air pump, pressure-regulating valve, pressure gauge, the testing base and floating being sequentially connected
Subflow gauge, mutual connection is completed by flexible pipe, and needs to realize sealing after connection, machine oil to be tested
Cleaner is by being threadably mounted in testing base, and design torque during installation according to oil filter is installed, described
Testing base should match with test oil filter, and air inlet and air gauge are exported and be connected, gas outlet and float
Flowmeter is connected, without internal leakage between air inlet/outlet.
Air is compressed at least pressure of 5bar by described compressed air pump；
Described barometric precision reaches ± 0.001bar；
The precision of described suspended body flowmeter reaches ± 0.1cm3/min；
Described test base is mutually matched with oil filter to be tested, and during connection, the sealing surface of connection should
Flatness 0.1mm is reached, surface roughness Rz is 12 μm.
The measuring method of non-return valve opening pressure in a kind of oil filter using above-mentioned test device, including it is following
Several steps：
(1) oil filter to be measured is arranged in testing base by product design moment of torsion, uses air leak detecting
Check air-tightness；
(2) compressed air pump, pressure-regulating valve, pressure gauge, testing base and suspended body flowmeter are sequentially connected,
Air-tightness is checked using air leak detecting；
(3) compressed air pump is opened, and adjusts pressure-regulating valve, observe the reading change of suspended body flowmeter；Treat
Its reading reaches 500cm3/ min, writes down now manometric reading, as non-return in the oil filter to be measured
The Opening pressure of valve.
During test, compressed air enters testing base from entrance, subsequently into oil filter in, work as compressed air
Pressure when reaching certain numerical value, check-valves is washed open by air-flow in oil filter, outlet of the gas from testing base
Suspended body flowmeter is discharged into, the reading for treating suspended body flowmeter is 500cm3/ min, the pressure value that pressure gauge shows
The Opening pressure of check-valves as in oil rectifier, empirical tests, experimental result is consistent with actual Opening pressure.
Described method of testing is carried out under the experimental situation that environment temperature is 25 DEG C, relative humidity is 50%, pressure
The pressure of contracting air is at least up to 5bar.
Airtight test described in step (1) and step (2), it is ensured that the leakage rate of device is less than 0.01cm3/min。
Compared with prior art, beneficial effects of the present invention are embodied in following several respects：
(1) using common compressed air pump, air gauge, pressure-regulating valve, suspended body flowmeter, thus need not
Carry out the investment of costliness；
(2) tested compared to using experimental oil, it is less expensive to carry out experimental cost using air, and will not produce
Volatile flavor；
(3) using air as medium test with respect to being tested with oil, without having to worry about due to test medium
The rubber parts of check-valves is caused to produce chemical reaction so as to influence experimental result, experimental result is more accurate.
Brief description of the drawings
Fig. 1 is connection diagram of the invention.
Wherein, 1 is compressed air pump, and 2 is pressure-regulating valve, and 3 is pressure gauge, and 4 is testing base, and 5 is floating
Subflow gauge.
Specific embodiment
Embodiments of the invention are elaborated below, the present embodiment enters under premised on technical solution of the present invention
Row is implemented, and gives detailed implementation method and specific operating process, but protection scope of the present invention is not limited to down
The embodiment stated.
Embodiment 1
As shown in figure 1, being a kind of measurement apparatus of non-return valve opening pressure in oil filter, including it is sequentially connected
Compressed air pump 1, pressure-regulating valve 2, pressure gauge 3, testing base 4 and suspended body flowmeter 5, machine oil to be measured
Cleaner is installed moment of torsion and is arranged in testing base 4 according to it, its sealing surface for connecting is reached flatness and is
0.1mm, surface roughness Rz are 12 μm.
The precision of above-mentioned pressure gauge 3 reaches ± 0.001bar, and the precision of suspended body flowmeter 5 reaches ± 0.1cm3/min。
Using the method for non-return valve opening pressure in above-mentioned test device measurement oil rectifier, including following step
Suddenly：
(1) oil filter to be measured is arranged in testing base 4 by product design moment of torsion, at 25 DEG C of room temperature,
Air-tightness is checked using air leak detecting, leakage rate is measured for 0.001cm3/ min, air-tightness is qualified；
(2) compressed air pump 1, pressure-regulating valve 2, pressure gauge 3, testing base 4 and float-type 5 are counted
It is sequentially connected, at 25 DEG C of room temperature, air-tightness is checked using air leak detecting, it is 0.001 to measure leakage rate
cm3/ min, air-tightness is qualified；
(3) under conditions of being 50% in air humidity, open compressed air pump 1 and switch, compressed air is passed through successively
Pressure-regulating valve 2, the deutostoma of pressure gauge 3 enter testing base 4, subsequently into oil filter in, now in it
Closure of check ring, when the pressure of compressed air reaches certain numerical value, check-valves is washed open by air-flow in oil filter,
The outlet of gas from testing base 4 is discharged into suspended body flowmeter 5, and slow regulation pressure-regulating valve 2, observation is floating
The reading of subflow gauge 4 changes.Treat that suspended body flowmeter reaches 500cm3During/min, the pressure gauge 3 at the moment is write down
Reading 0.12bar, the reading is the non-return valve opening pressure of the oil strainer, empirical tests, experimental result and reality
Opening pressure is consistent.
Claims (6)
1. in a kind of oil filter non-return valve opening pressure measurement apparatus, it is characterised in that the measurement apparatus
Including the compressed air pump (1), pressure-regulating valve (2), pressure gauge (3), the testing base (4) that are sequentially connected
With suspended body flowmeter (5), oil filter to be tested is by being threadably mounted in testing base (4).
2. in a kind of oil filter according to claim 1 non-return valve opening pressure measurement apparatus, its
It is characterised by, air is compressed at least pressure of 5bar by described compressed air pump (1)；
The precision of described air gauge (3) reaches ± 0.001bar；
The precision of described suspended body flowmeter (5) reaches ± 0.1cm3/min。
3. in a kind of oil filter according to claim 1 non-return valve opening pressure measurement apparatus, its
It is characterised by, described test base (4) is mutually matched with oil filter to be tested, during connection, even
The sealing surface for connecing reaches flatness 0.1mm, and surface roughness Rz is 12 μm.
4. test device described in a kind of use claims 1 to 3 measures non-return valve opening pressure in oil filter
Method, it is characterised in that the method includes following steps：
(1) oil filter to be measured is arranged in testing base (4) by product design moment of torsion, is examined using air
Leakage method checks air-tightness；
(2) by compressed air pump (1), pressure-regulating valve (2), pressure gauge (3), testing base (4) and floating
Subflow gauge (5) is sequentially connected, and air-tightness is checked using air leak detecting；
(3) compressed air pump (1) is opened, and adjusts pressure-regulating valve (2), observation suspended body flowmeter (5)
Reading changes；Treat that its reading reaches 500cm3During/min, the reading of pressure gauge (3) is write down, as the machine to be measured
The Opening pressure of check-valves in oil rectifier.
5. in a kind of oil filter according to claim 4 non-return valve opening pressure measuring method, its
It is characterised by, described method is carried out under the experimental situation that environment temperature is 25 DEG C, relative humidity is 50%.
6. in a kind of oil filter according to claim 4 non-return valve opening pressure measuring method, its
It is characterised by, the airtight test described in step (1) and step (2), it is ensured that the leakage rate of device is less than
0.01cm3/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990932.XA CN106918449A (en) | 2015-12-24 | 2015-12-24 | The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990932.XA CN106918449A (en) | 2015-12-24 | 2015-12-24 | The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106918449A true CN106918449A (en) | 2017-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510990932.XA Pending CN106918449A (en) | 2015-12-24 | 2015-12-24 | The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter |
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| Country | Link |
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| CN (1) | CN106918449A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328946A (en) * | 2017-08-18 | 2017-11-07 | 安图实验仪器(郑州)有限公司 | Fluid injection non-return valve retarded capability detecting system |
| CN111855109A (en) * | 2020-07-29 | 2020-10-30 | 东科克诺尔商用车制动技术有限公司 | Check valve opening pressure and sealing test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676170Y (en) * | 2003-05-09 | 2005-02-02 | 浙江三花股份有限公司 | Integrated test system for one-way valve |
| CN102680217A (en) * | 2012-04-20 | 2012-09-19 | 芜湖杰锋汽车动力系统有限公司 | Opening pressure detection device for check valve |
| KR20130047001A (en) * | 2011-10-31 | 2013-05-08 | 대우조선해양 주식회사 | Leakage testing apparatus for double check valve and its testing method |
| CN204008098U (en) * | 2014-07-24 | 2014-12-10 | 江苏神通阀门股份有限公司 | A kind of non-return valve opening pressure proving installation |
| CN205449454U (en) * | 2015-12-24 | 2016-08-10 | 曼胡默尔滤清器（上海）有限公司 | Measurement device for check valve cracking pressure in oil cleaner |
-
2015
- 2015-12-24 CN CN201510990932.XA patent/CN106918449A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676170Y (en) * | 2003-05-09 | 2005-02-02 | 浙江三花股份有限公司 | Integrated test system for one-way valve |
| KR20130047001A (en) * | 2011-10-31 | 2013-05-08 | 대우조선해양 주식회사 | Leakage testing apparatus for double check valve and its testing method |
| CN102680217A (en) * | 2012-04-20 | 2012-09-19 | 芜湖杰锋汽车动力系统有限公司 | Opening pressure detection device for check valve |
| CN204008098U (en) * | 2014-07-24 | 2014-12-10 | 江苏神通阀门股份有限公司 | A kind of non-return valve opening pressure proving installation |
| CN205449454U (en) * | 2015-12-24 | 2016-08-10 | 曼胡默尔滤清器（上海）有限公司 | Measurement device for check valve cracking pressure in oil cleaner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328946A (en) * | 2017-08-18 | 2017-11-07 | 安图实验仪器(郑州)有限公司 | Fluid injection non-return valve retarded capability detecting system |
| CN111855109A (en) * | 2020-07-29 | 2020-10-30 | 东科克诺尔商用车制动技术有限公司 | Check valve opening pressure and sealing test device |
| CN111855109B (en) * | 2020-07-29 | 2022-02-11 | 东科克诺尔商用车制动技术有限公司 | Check valve opening pressure and sealing test device |
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Application publication date: 20170704 |
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