CN107299856A - Engine clutch fan detection method and equipment - Google Patents
Engine clutch fan detection method and equipment Download PDFInfo
- Publication number
- CN107299856A CN107299856A CN201710682254.XA CN201710682254A CN107299856A CN 107299856 A CN107299856 A CN 107299856A CN 201710682254 A CN201710682254 A CN 201710682254A CN 107299856 A CN107299856 A CN 107299856A
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- Prior art keywords
- fan
- engine clutch
- temperature
- detection
- engine
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
- F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a kind of engine clutch fan detection method and equipment, method includes：Performance detection, the method for performance detection is：Engine clutch fan is heated, and monitors the temperature and rotating speed of engine clutch fan；When the rotating speed of monitoring engine clutch fan reaches peak speed, stop heating, until engine clutch rotation speed of the fan is 0；It is a detection cycle to begin to warm up engine clutch rotation speed of the fan as 0, at least extract four temperature values, start-up temperature T3, engagement temperature T1, closing temperature T4 and disengagement temperature T2, and compared respectively with corresponding normal temperature, difference is in allowed band then to be qualified.In the detection method of the present invention, outer bound pair engine clutch fan heating examines rotating speed and temperature value to evaluate the performance of the fan, is usually to be compared with standard value, it is of course also possible to the performance parameter for confirming certain product.
Description
Technical field
The present invention relates to vehicle detection, more particularly to a kind of engine clutch fan detection method and equipment.
Background technology
Silicon oil clutch fan is located at after radiator, by driving water pump and same V-type V belt translation of generator, fan belt
Take turns is used for the engagement of fan with separating with the silicon oil clutch between cooling fan.When reaching engagement temperature, fan engagement, with
The temperature control valve opening increase in load increase, cooling water temperature rise, silicon oil clutch, the oil mass into fluid coupling increases
Many, rotation speed of the fan increases, air quantity increase, intensity of cooling enhancing；Conversely, when the load is decreasing, rotation speed of the fan reduction.When less than de-
During from temperature, fan departs from, and shuts down.
Drive fan viscous is transmitted moment of torsion using the highly viscous characteristic of silicone oil, is utilized radiator using silicone oil as medium
Air themperature afterwards, the separation and engagement of fan clutch are controlled by temperature detector.
When temperature is low, silicone oil does not flow, and fan clutch separation, rotation speed of the fan slows down, substantially dallied.Temperature is high
When, the viscosity of silicone oil engages fan clutch, and fan rotates together with pump shaft, adjusts engine temperature.
Prior art detects the heat produced in itself generally by engine to it, is born by increasing or decreasing engine
Regulation silicon oil clutch fan is carried, responds slowly, is adjusted by the mode of engine load is increased or decreased in this way
Silicon oil clutch fan is saved, one operating mode of simulation needs the cycle longer；Secondly, this method defines the work of engine in itself
Condition, examination scope is more single, bad adaptability；Finally, due to the influence of the factor such as environment temperature, engine condition, it is difficult to control
Test cycle time, poor controllability.
The content of the invention
It is an object of the invention to provide a kind of engine clutch fan detection method and equipment, detection efficiency is high, detection
Scope is wide, and with good adaptability, accuracy of detection is high.
The engine clutch fan detection method of the present invention, including：Performance detection, the method for the performance detection is：
Engine clutch fan is heated, and monitors the temperature and rotating speed of the engine clutch fan；Monitor the engine
When the rotating speed of clutch fan reaches peak speed, stop heating, until the engine clutch rotation speed of the fan is 0；To open
It 0 is a detection cycle that beginning, which is heated to the engine clutch rotation speed of the fan to be, at least extracts four temperature values, start-up temperature
T3, engagement temperature T1, closing temperature T4 and disengagement temperature T2, and compared respectively with corresponding normal temperature, difference is allowing model
Then to be qualified in enclosing.
Engine clutch fan detection method as described above, in addition to：Oil consumption detection, the method for the oil consumption detection
For：Remove the engine clutch fan, the oil consumption L1 in detection engine isolated operation time H；The performance is examined again
The qualified engine clutch fan is installed on the engine in survey, by a detection week in the performance detection
On the basis of phase, the oil consumption L2 in run time H is detected, the difference of oil consumption twice is less than or equal to standard deviation, then to be qualified.
Engine clutch fan detection method as described above, wherein, a when a length of detection of the time H
The positive integer times of the duration in cycle.
The engine clutch fan detection device of the present invention, for any of the above-described kind of detection method, the equipment includes：Control
Platform processed, with acquisition control unit；Temperature sensor and speed probe, are connected, collection is started with the acquisition control unit
The temperature data and rotary speed data of machine clutch fan, and it is sent to the acquisition control unit；Air-heater, with adjusting shower nozzle
And flow valve, the adjusting shower nozzle is towards the engine clutch fan；The acquisition control unit connects with the air-heater
Connect, control the direction of the adjusting shower nozzle, and the flow of the regulation flow valve to control.
Engine clutch fan detection device as described above, in addition to engine consumption detector and engine speed
Detector.
In the detection method of the present invention, outer bound pair engine clutch fan heating detects rotating speed and temperature value to evaluate
The performance of the fan, is usually to be compared with standard value, it is of course also possible to the performance parameter for confirming certain product.In some realities
Apply in example, can also be used to evaluate the performance for the engine for having used the engine clutch fan.
Brief description of the drawings
Fig. 1 is the curve map that engine clutch fan detection method is obtained.
Fig. 2 is the schematic diagram of engine clutch fan detection device.
Reference：
Console 1；Acquisition control unit 2；Temperature sensor 3；Speed probe 4；Engine clutch fan 5；Start
Machine 6；Flow valve 7；Air-heater 8；Adjusting shower nozzle 9；Laboratory 10.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The present invention discloses a kind of engine clutch fan detection method, and this method can be to engine clutch fan
The performance of (hereinafter referred to as fan) is detected, moreover it is possible to which its fuel consumption is detected.
The method of performance detection is that engine clutch fan is heated, and monitors the temperature of the engine clutch fan
Degree and rotating speed；When the rotating speed for monitoring the engine clutch fan reaches peak speed, stop heating, until the engine
Clutch rotation speed of the fan is 0；
It is a detection cycle to begin to warm up the engine clutch rotation speed of the fan as 0, at least extracts four temperature
Angle value, start-up temperature T3, engagement temperature T1, closing temperature T4 and disengagement temperature T2, and compared respectively with corresponding normal temperature,
Difference is in allowed band then to be qualified.
Incipient stage, fan is heated, gradually rises temperature, fan is together with clutch housing in bearing friction power
Rotated under effect with very low rotating speed, in such as Fig. 1, section A-B curve.
When clutch temperature-sensitive temperature rises to start-up temperature T3, control valve block, which is started to open at, to be gradually opened, and silicone oil is flowed into
To working chamber, clutch starts engagement, and in the presence of silicone oil, follower plate starts to follow active plate to rotate, and drives clutch
Housing rotates together with fan, the B-C section curves in such as Fig. 1；
When temperature rises to engagement temperature T1, at a fully engaged, fan work, the rotation speed of the fan of C points is engagement rotating speed,
Until clutch temp reaches D points (according to experiment needs), i.e. C-D sections of curve.In monitoring, it can be examined before and after engagement temperature T1
The change of the acceleration of fan speed is measured, with reference to Fig. 1, B-C sections of acceleration are significantly greater than C-D sections of acceleration, can during monitoring
T1 temperature is confirmed with the change according to speed, i.e. acceleration.Speed typically in T1 temperature, referred to as geared speed R1.
When rotating speed reaches the rotating speed of the D points in peak value, i.e. figure, stop heating, temperature is gradually reduced, and rotation speed of the fan is not
Become, i.e. D-E curves；
When clutch temp declines closing temperature T4, bimetallic temperature detector starts to recover to original state, controls valve block
Progressively close off, clutch starts to disengage, and rotation speed of the fan is drastically reduced, i.e. E-F curves.
When clutch temp drops to disengagement temperature T2, rotation speed of the fan gently declines, until returning to initial speed, i.e. F-
A curves.Rotation speed of the fan when temperature, which is reduced to, disengages temperature T2 is disengagement speed R2.
Except above-mentioned performance detection, moreover it is possible to carry out oil consumption detection, the oil consumption detection generally refer to the engine from
The fuel consumption of the transmitter of clutch fan, it will be understood that the attached heavy increase after fan is installed, it is possible to increase fuel consumption, therefore
It can be appreciated that increased oil consumption is the oil consumption of fan.
The oil consumption detection method be：The engine clutch fan is removed, in detection engine isolated operation time H
Oil consumption L1；
The engine clutch fan qualified in the performance detection is installed on the engine again, by described
On the basis of a detection cycle in performance detection, the oil consumption L2 in run time H is detected, the difference of oil consumption twice is less than or equal to
Standard deviation, then to be qualified.
Above-mentioned installation fan and do not install fan operation time be H, i.e., run time is identical twice.
The time H when an a length of detection cycle duration positive integer times.It can make after installation fan,
Operation detection cycle that can be complete.
It is preferred that, engine does not install fan, isolated operation 1 hour, and records the fuel consumption L1 in this 1 hour；Pacify again
Fan is filled, according to the method for operation of detection cycle, operation 1h engines keep original operating mode, record its fuel consumption values L2；
Engine is carried after fan, and the oil consumption incrementss of operation 1 hour set index as Lx, that is, is installed fan and run 1
Hour is Lx compared to not installing fan to run 1 hour increased oil consumption, then Lx >=L2-L1 then thinks to meet the requirements.
Certainly, it is of the invention the abrasion of fan parts to be evaluated, after above-mentioned end of run, remove wind
Fan, and parts, such as gear, carry out wear evaluation.
Invention additionally discloses a kind of engine clutch fan detection device for above-mentioned detection method, referring to Fig. 2, its
Including：Console 1, with acquisition control unit 2；Temperature sensor 3 and speed probe 4, connect with the acquisition control unit 2
It is logical, the temperature data and rotary speed data of collection engine clutch fan 5, and it is sent to the acquisition control unit 2；Air-heater
8, with adjusting shower nozzle 9 and flow valve 7, the adjusting shower nozzle 9 is towards the engine clutch fan 5；Flow valve 7 is arranged on
On in adjusting shower nozzle 9.The acquisition control unit 2 is connected with the air-heater 8, controls the direction of the adjusting shower nozzle 9, and
Adjust the flow control of the flow valve 7.It is preferred that also include engine consumption detector and engine speed detector, this two
Individual equipment is all used for detecting engine 6.
In a preferred embodiment, in addition to above-mentioned console 1 (including acquisition control unit 2 on console 1),
Other parts are all disposed within laboratory 10, can so avoid the influence of outer bound pair experimental precision.
Before on-test, arrangement temperature sensor 3, speed probe 4 and air-heater 8, adjusting shower nozzle 9 make heating gate just
To engine clutch fan 5, temperature sensor 3 turns to measure silicon oil clutch temperature, the measurement fan of speed probe 4
Speed；Acquisition control unit 2 gathers measurement data in real time, while controlling air-heater 8 and flow control valve 7, adjusts silicon oil clutch
Temperature；Console 1 is used for the operating mode for controlling engine 6, such as rotating speed, moment of torsion, water temperature, while it is bent with rotating speed to be fitted temperature
Line, writes auto-programming.
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change, or be revised as the equivalent embodiment of equivalent variations, still without departing from specification with illustrating during covered spirit,
All should be within the scope of the present invention.
Claims (5)
1. a kind of engine clutch fan detection method, it is characterised in that including：
Performance detection, the method for the performance detection is：
Engine clutch fan is heated, and monitors the temperature and rotating speed of the engine clutch fan；
When the rotating speed for monitoring the engine clutch fan reaches peak speed, stop heating, until the engine clutch
Device rotation speed of the fan is 0；
It is a detection cycle to begin to warm up the engine clutch rotation speed of the fan as 0, at least extracts four temperature values,
Start-up temperature T3, engagement temperature T1, closing temperature T4 and disengagement temperature T2, and compared respectively with corresponding normal temperature, difference
Then to be qualified in allowed band.
2. engine clutch fan detection method according to claim 1, it is characterised in that also include：
Oil consumption detects that the method for the oil consumption detection is：
Remove the engine clutch fan, the oil consumption L1 in detection engine isolated operation time H；
The engine clutch fan qualified in the performance detection is installed on the engine again, by the performance
On the basis of a detection cycle in detection, the oil consumption L2 in run time H is detected, the difference of oil consumption twice is less than or equal to standard
Difference, then to be qualified.
3. engine clutch fan detection method according to claim 2, it is characterised in that the duration of the time H
For the positive integer times of the duration of a detection cycle.
4. a kind of engine clutch fan detection device for claim 1-3 detection methods, it is characterised in that including：
Console (1), with acquisition control unit (2)；
Temperature sensor (3) and speed probe (4), are connected with the acquisition control unit (2), gather engine clutch wind
The temperature data and rotary speed data of fan, and it is sent to the acquisition control unit (2)；
Air-heater (8), with adjusting shower nozzle (9) and flow valve (7), the adjusting shower nozzle (9) is towards the engine clutch
Fan；
The acquisition control unit (2) is connected with the air-heater (8), controls the direction of the adjusting shower nozzle (9), and regulation
The flow control of the flow valve (7).
5. engine clutch fan detection device according to claim 4, it is characterised in that
Also include engine consumption detector and engine speed detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682254.XA CN107299856A (en) | 2017-08-10 | 2017-08-10 | Engine clutch fan detection method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682254.XA CN107299856A (en) | 2017-08-10 | 2017-08-10 | Engine clutch fan detection method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107299856A true CN107299856A (en) | 2017-10-27 |
Family
ID=60134547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710682254.XA Pending CN107299856A (en) | 2017-08-10 | 2017-08-10 | Engine clutch fan detection method and equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN107299856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963237A (en) * | 2021-03-17 | 2021-06-15 | 潍柴动力股份有限公司 | Method, device and equipment for detecting running state of electric control silicone oil clutch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411318A (en) * | 2011-11-17 | 2012-04-11 | 东风朝阳柴油机有限责任公司 | Device for automatically testing and controlling electromagnetic fan clutch for vehicle |
| CN103353397A (en) * | 2013-07-31 | 2013-10-16 | 潍柴动力股份有限公司 | Clutching testing method of silicone oil fan clutch and testing system |
| JP2016033355A (en) * | 2014-07-31 | 2016-03-10 | 井関農機株式会社 | Prime mover part of working vehicle |
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2017
- 2017-08-10 CN CN201710682254.XA patent/CN107299856A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411318A (en) * | 2011-11-17 | 2012-04-11 | 东风朝阳柴油机有限责任公司 | Device for automatically testing and controlling electromagnetic fan clutch for vehicle |
| CN103353397A (en) * | 2013-07-31 | 2013-10-16 | 潍柴动力股份有限公司 | Clutching testing method of silicone oil fan clutch and testing system |
| JP2016033355A (en) * | 2014-07-31 | 2016-03-10 | 井関農機株式会社 | Prime mover part of working vehicle |
Non-Patent Citations (2)
| Title |
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| 王吉、韩明芳、李凯、段练: "《中华人民共和国汽车行业标准QC/T33-2006》", 7 March 2006 * |
| 黄立新、郭青: "《汽车发动机构造与维修》", 31 January 2010, 上海科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963237A (en) * | 2021-03-17 | 2021-06-15 | 潍柴动力股份有限公司 | Method, device and equipment for detecting running state of electric control silicone oil clutch |
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Application publication date: 20171027 |