CN107091167B - A kind of active sealing device for friction force measurement system between piston ring-cylinder liner - Google Patents
A kind of active sealing device for friction force measurement system between piston ring-cylinder liner Download PDFInfo
- Publication number
- CN107091167B CN107091167B CN201710477946.0A CN201710477946A CN107091167B CN 107091167 B CN107091167 B CN 107091167B CN 201710477946 A CN201710477946 A CN 201710477946A CN 107091167 B CN107091167 B CN 107091167B
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- Prior art keywords
- cylinder
- pressure
- pressure sensor
- air valve
- piston ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/005—Arrangements of sealings in combustion engines involving cylinder liners
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
The invention belongs to the testing fields of internal combustion engine, more particularly to a kind of active sealing device for friction force measurement system between piston ring-cylinder liner, including cylinder cap, floating cylinder sleeve, piston, cylinder body, high-pressure conduit, air valve, pressure pan, air compressor, pressure sensor, in-cylinder pressure sensor, pressure testing and controlling device and seal chamber composition.The pressure value that pressure testing and controlling device is measured by comparative analysis pressure sensor and in-cylinder pressure sensor, active control air valve carry out the realizing active sealing for realizing floating cylinder sleeve so that the pressure in seal chamber reaches synchronous equivalence with combustion chamber in-cylinder pressure.It is mounted with that force snesor is used to carry out the friction measurement between piston ring-cylinder liner between floating cylinder sleeve and cylinder body.The present invention realizes the realizing active sealing of cylinder sleeve, prevents gas in the jar from leaking, it is ensured that measures under internal combustion engine nonknocking condition to piston-cylinder liner frictional force.
Description
Technical field
The invention belongs to the testing fields of internal combustion engine, and in particular to one kind is for friction measurement system between piston ring-cylinder liner
The active sealing device of system.
Background technique
Currently, petroleum resources are more and more shorter, and corresponding fuel economy regulation is increasingly stringent.For how to reduce the combustion of internal combustion engine
Oil consumption, it has also become an important job.Friction loss by reducing internal combustion engine is that a kind of common combustion engine energy-saving changes
Into technology.In general, the 40%~50% of internal combustion engine friction loss is consumed by piston ring-cylinder liner friction pair.In order to survey
Friction, lubrication situation between amount analysis piston-cylinder liner component, researcher has carried out a large amount of trials, to develop measurable internal combustion
The testing equipment of machine actual operating mode lower piston-cylinder sleeve component frictional force situation.In setting for this kind of friction force measurement system
In meter, it is often used floating cylinder sleeve method and carries out friction measurement, therefore, to assure that connect always in non-between cylinder sleeve and internal combustion engine cylinders
Touching state, and this will certainly destroy the leakproofness of cylinder.Internal combustion engine, especially compression ignition engine want the leakproofness of cylinder
Ask especially high.Cylinder seal deficiency may make internal combustion engine can not normal combustion, lead to the mistake of friction measurement between piston-cylinder liner
Very.But so far, the sealing problem of floating cylinder sleeve all fails to obtain effective solution always.
Summary of the invention
The object of the present invention is to provide a kind of active sealing device for friction force measurement system between piston ring-cylinder liner,
To solve sealing problem of the floating cylinder sleeve in internal combustion engine compression and expansion stroke.
To solve above-mentioned technical problem, present invention uses following technical schemes: one kind is for measuring piston ring-
The floating cylinder sleeve active sealing device of frictional force between cylinder sleeve, including cylinder cap, floating cylinder sleeve, piston and cylinder body, further include that high pressure is led
Pipe, air valve, pressure pan, air compressor, pressure sensor, IC engine cylinder pressure sensor add in the cylinder body of cylinder cap
Work seal chamber, installs force snesor between floating cylinder sleeve and cylinder body to carry out the friction measurement between piston ring-cylinder liner, high
Pressure tube at one end is connect with seal chamber, and the other end is connect with air valve；Air valve is mounted on pressure pan, pressure pan and air compressor
It is connected, air compressor provides pressure for pressure pan, and pressure sensor one end is connect with seal chamber, the pressure of seal chamber is measured,
The other end is connected with controller, and IC engine cylinder pressure sensor one end is connect with combustion chamber, measures the pressure of combustion chamber, another
End is connected with controller, and controller is connect with air valve, pressure of the controller to pressure sensor and IC engine cylinder pressure sensor
Force value compares, active control air valve, so that seal chamber reaches synchronous equivalent with in-cylinder pressure value, and then realizes floating cylinder sleeve
Realizing active sealing.
The present invention machined a seal chamber on internal combustion engine cylinders, synchronous with combustion chamber by actively applying to seal chamber
Equivalent high pressure gas, makes combustion chamber reach sealing effect.The present invention realizes the realizing active sealing of cylinder sleeve, prevents gas in the jar from letting out
Leakage, it is ensured that piston-cylinder liner frictional force is measured under internal combustion engine nonknocking condition.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1- cylinder cap；2- floating cylinder sleeve；3- piston；4- cylinder body；5- high-pressure conduit；6- air valve；7- pressure pan；8- is empty
Air compressor；9- pressure sensor；10- in-cylinder pressure sensor；11- controller；12- seal chamber；The combustion chamber 13-；14- power passes
Sensor.
Specific embodiment
With reference to the accompanying drawing, the present invention is described further.
A kind of active sealing device for friction force measurement system between piston ring-cylinder liner, including cylinder cap 1, floating cylinder sleeve
2, piston 3 and cylinder body 4 further include high-pressure conduit 5, air valve 6, pressure pan 7, air compressor 8, pressure sensor 9, IC engine cylinder
Pressure sensor 10 machined seal chamber 12 in the cylinder body 4 of cylinder cap 1, the installing force between floating cylinder sleeve 2 and cylinder body 4
Sensor 14 carries out the friction measurement between piston ring-cylinder liner, and 5 one end of high-pressure conduit connect with seal chamber 12, the other end with
Air valve 6 connects；Air valve 6 is mounted on pressure pan 7, and pressure pan 7 is connected with air compressor 8, and air compressor 8 is pressure pan 7
Pressure is provided, pressure sensor 9 is mounted on cylinder body 4 and one end is connect with seal chamber 12, measures the pressure of seal chamber 12, another
End is connected with controller 11, and IC engine cylinder pressure sensor 10 is mounted on cylinder cap 1 and one end is connect with combustion chamber 13, measurement
The pressure of combustion chamber 13, the other end are connected with controller 11, and controller 11 is connect with air valve 6, and controller 11 is to pressure sensor 9
It is compared with the pressure value of IC engine cylinder pressure sensor 10, active control air valve 6, so that seal chamber 12 and in-cylinder pressure
Value reach synchronize it is equivalent, carry out realize floating cylinder sleeve realizing active sealing.
A kind of above-mentioned active sealing device for friction force measurement system between piston ring-cylinder liner, force snesor 14 1
End is connected by link block with cylinder body, and 14 other end of force snesor is connected by link block and floating cylinder sleeve 2.
Claims (2)
1. a kind of active sealing device for friction force measurement system between piston ring-cylinder liner, including cylinder cap (1), floating cylinder sleeve
(2), piston (3) and cylinder body (4), it is characterised in that further include high-pressure conduit (5), air valve (6), pressure pan (7), air compressor
(8), pressure sensor (9), IC engine cylinder pressure sensor (10) machined seal chamber in the cylinder body (4) of cylinder cap (1)
(12), the frictional force installed between floating cylinder sleeve (2) and cylinder body (4) between force snesor (14) Lai Jinhang piston ring-cylinder liner is surveyed
Amount, high-pressure conduit (5) one end are connect with seal chamber (12), and the other end is connect with air valve (6)；Air valve (6) is mounted on pressure pan (7)
On, pressure pan (7) is connected with air compressor (8), and air compressor (8) is that pressure pan (7) provide pressure, pressure sensor
(9) one end is connect with seal chamber (12), measures the pressure of seal chamber (12), and the other end is connected with controller (11), IC engine cylinder
Pressure sensor (10) one end is connect with combustion chamber (13), the pressure of measurement combustion chamber (13), the other end and controller (11)
It is connected, controller (11) is connect with air valve (6), and controller (11) is to pressure sensor (9) and IC engine cylinder pressure sensor
(10) pressure value compares, active control air valve (6), so that seal chamber (12) reaches synchronous equivalent with in-cylinder pressure value,
And then realize the realizing active sealing of floating cylinder sleeve.
2. a kind of active sealing device for friction force measurement system between piston ring-cylinder liner according to claim 1,
Be characterized in that force snesor (14) one end is connected by link block with cylinder body, force snesor (14) other end by link block and
Floating cylinder sleeve (2) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477946.0A CN107091167B (en) | 2017-06-22 | 2017-06-22 | A kind of active sealing device for friction force measurement system between piston ring-cylinder liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477946.0A CN107091167B (en) | 2017-06-22 | 2017-06-22 | A kind of active sealing device for friction force measurement system between piston ring-cylinder liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091167A CN107091167A (en) | 2017-08-25 |
| CN107091167B true CN107091167B (en) | 2019-06-18 |
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ID=59640734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710477946.0A Expired - Fee Related CN107091167B (en) | 2017-06-22 | 2017-06-22 | A kind of active sealing device for friction force measurement system between piston ring-cylinder liner |
Country Status (1)
| Country | Link |
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| CN (1) | CN107091167B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607241B (en) * | 2017-09-06 | 2020-07-03 | 太原理工大学 | Device for measuring friction force of piston and cylinder sleeve assembly of internal combustion engine |
| CN107687368B (en) * | 2017-10-16 | 2020-09-11 | 北京理工大学 | Method for predicting friction loss of radial sealing sheet of microminiature rotor engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2990291B2 (en) * | 1990-07-07 | 1999-12-13 | 大豊工業株式会社 | Cylinder head gasket |
| KR100394635B1 (en) * | 2000-12-28 | 2003-08-14 | 현대자동차주식회사 | A mounting structure of floating liner for measuring friction of piston |
| CN103698072A (en) * | 2013-12-24 | 2014-04-02 | 潍柴动力股份有限公司 | Friction measuring system and fraction measuring device |
| CN104568275B (en) * | 2015-01-22 | 2017-06-13 | 大连海事大学 | The test device and method of a kind of cylinder sleeve and piston component frictional force |
| CN105136373A (en) * | 2015-05-14 | 2015-12-09 | 奇瑞汽车股份有限公司 | Device used for measuring frictional force between piston and cylinder sleeve and piston side thrust under fired state |
-
2017
- 2017-06-22 CN CN201710477946.0A patent/CN107091167B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107091167A (en) | 2017-08-25 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200107 Address after: 239500 Anhui city of Chuzhou province Quanjiao County Xiang Town Chuquan Road Patentee after: QUANJIAO POWER MACHINERY Co.,Ltd. Address before: 030024 West Street, Taiyuan, Shanxi, No. 79, No. Patentee before: Taiyuan University of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 |