CN107816430B - A kind of low-temperature test system of automobile fuel pump - Google Patents
A kind of low-temperature test system of automobile fuel pump Download PDFInfo
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- CN107816430B CN107816430B CN201710891086.5A CN201710891086A CN107816430B CN 107816430 B CN107816430 B CN 107816430B CN 201710891086 A CN201710891086 A CN 201710891086A CN 107816430 B CN107816430 B CN 107816430B
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- oil
- measured
- pump
- pipe line
- oil pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
Abstract
The present invention provides a kind of low-temperature test system and method for automobile fuel pump, which includes: refrigerating plant, heat exchanger, experimental box, gearbox, circuit control unit, temperature control unit, detection unit and fuel tank.Heat exchanger is connected by first circulation pipeline with refrigerating plant, and heat exchanger is connected by second circulation pipeline with experimental box.The oil outlet of oil pump to be measured is connected by the first oil pipe line with fuel tank, and the oil outlet of oil pump to be measured is connected by the second oil pipe line with oil pump oil return opening to be measured, and the oil inlet of oil pump to be measured is connected by third oil pipe line with fuel tank.Circuit control unit is used to control the on-off of the first oil pipe line, the second oil pipe line.Temperature control unit is adjusted for controlling the oil liquid temperature run in gearbox and oil pump to be measured by test requirements document.Detection unit is used to detect the returning of oil pump to be measured, oil outlet pressure and oil outlet flow.The present invention can improve the accuracy of operation of oil pump parameter testing.
Description
Technical field
The present invention relates to automobile parts the field of test technology more particularly to a kind of low-temperature test systems of automobile fuel pump.
Background technique
Pressure, flow are the groundwork parameters of oil pump, can be obtained by the pressure of oil pump, flow under measurement specific operation
Know the oil pump volumetric efficiency under the operating condition, and volumetric efficiency is the basic performance indices of oil pump, is commonly used in practical applications
Measure whether an oil pump meets product design requirement.
At low temperature due to oil property, oil viscosity is big, poor fluidity, and oil pump is easily pumped into air and testing equipment
It limits (needing for oil pump to be refrigerated to subzero 40 DEG C), the pressure flow data acquisition difficulty under oil pump low temperature is big, needs to spend more
High experimentation cost and time obtains.Therefore, oil pump manufacturer generally only provides 30 DEG C or more of pressure flow data.And it is oily
The pressure flow data under oil pump low temperature are exactly needed when pumping calibration high and cold using producer (gearbox main engine plants) progress winter again,
Due to not having the support of pressure flow data under oil pump low-temperature condition, high and cold calibration and software development work belt to main engine plants come
It seriously affects.Therefore, there is important research significance as the test of automobile fuel pump at different temperatures can be achieved.
Summary of the invention
The present invention provides a kind of low-temperature test system of automobile fuel pump, solve existing automobile fuel pump in cryogenic conditions pressure and
The high problem of data on flows testing cost can improve the accuracy of the running parameter test of automobile fuel pump, improve what automobile used
Safety.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of low-temperature test system of automobile fuel pump, comprising: refrigerating plant, heat exchanger, experimental box, gearbox, circuit
Control unit, temperature control unit, detection unit and fuel tank；
After the gearbox is connected with oil pump to be measured, it is arranged in the experimental box；
The heat exchanger is connected by first circulation pipeline with the refrigerating plant, and the heat exchanger is followed by second
Endless tube road is connected with the experimental box；
The oil outlet of the oil pump to be measured is connected by the first oil pipe line with fuel tank, and the oil outlet of the oil pump to be measured passes through
Second oil pipe line is connected with the oil return opening of the oil pump to be measured, and the oil inlet of the oil pump to be measured passes through third oil pipe line and fuel tank
It is connected；
The circuit control unit is used to control the on-off of first oil pipe line and the second oil pipe line；
The temperature control unit is used to control the refrigerating plant and adjusts to the temperature in the experimental box, so that described
The oil liquid temperature run in gearbox and the oil pump to be measured is adjusted by test requirements document；
The detection unit is used to detect recycle muzzle pressure, oil outlet pressure and the oil outlet flow of the oil pump to be measured.
Preferably, further includes: heating combined equipment；
The heating combined equipment is connected by third circulation line with the heat exchanger, the temperature control unit control
The heat exchange amount of the heating combined equipment and the refrigerating plant and the heat exchanger, to be adjusted to the temperature in experimental box
Section realizes the test of the oil pump to be measured at different temperatures.
Preferably, the circuit control unit includes: first throttle valve, second throttle and third throttle valve；
One end that first oil pipe line is connect with the oil outlet of the oil pump to be measured is arranged in the first throttle valve, uses
In the flow and pressure of the oil outlet for adjusting the oil pump to be measured；
One end that second oil pipe line is connect with the oil return opening of the oil pump to be measured is arranged in the second throttle, uses
In the flow for the oil return opening for adjusting the oil pump to be measured；
The third throttle valve is arranged on first oil pipe line, for adjusting the flow of oil pump and fuel tank to be measured.
Preferably, the detection unit includes: first pressure sensor, second pressure sensor and flowmeter；
The oil outlet side of the oil pump to be measured, the second pressure sensor setting is arranged in the first pressure sensor
In the oil return opening side of the oil pump to be measured, the oil outlet of first oil pipe line Yu the oil pump to be measured is arranged in the flowmeter
One end of connection.
Preferably, the temperature control unit includes: temperature sensor；
The temperature sensor is for detecting the oil liquid temperature run in the gearbox and the oil pump to be measured.
Preferably, the experimental box includes: oil drain pan；
The oil drain pan is bolted with the gear box casing, the oil drain pan be used for the gearbox and it is described to
Survey oil pump connection the dust-proof of oil circuit interface, splashproof and pipeline guiding；
The oil drain pan is additionally provided with the first groove body and the second groove body, and first groove body is equipped with first through hole and second and leads to
Hole, second groove body are equipped with third through-hole；
First oil pipe line passes through the first through hole, the first throttle valve, the flowmeter, third throttling
Valve is connected with fuel tank；
Second oil pipe line passes through the second throttle and is connected with the second through-hole with oil pump oil return opening to be measured；
The third oil pipe line is connected by the third through-hole with the fuel tank.
Preferably, the oil drain pan edge is equipped with multiple lugs, and bolt hole is equipped in the lug, and the oil drain pan is logical
The bolt hole is crossed to connect with the gear box casing.
Preferably, the refrigerating plant is outdoor cooling tower and/or indoor freezing unit, and the heating combined equipment is electric heating
System.
The present invention provides a kind of low-temperature test system of automobile fuel pump, makes refrigerating plant to oil pump to be measured by heat exchanger
The oil liquid temperature of operation cools down, and solves existing automobile fuel pump and asks cryogenic conditions pressure and data on flows testing cost are high
Topic can improve the accuracy of the running parameter test of automobile fuel pump, improve the safety that automobile uses.
Detailed description of the invention
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1: a kind of low temperature of automobile fuel pump provided by the invention tests check system schematic diagram；
Fig. 2: being a kind of schematic diagram of the low-temperature test system of automobile fuel pump provided by the invention；
Fig. 3: being a kind of oil drain pan structural schematic diagram provided in an embodiment of the present invention；
Fig. 4: being oil drain pan scheme of installation provided in an embodiment of the present invention.
Appended drawing reference
S1 first circulation pipeline
S2 second circulation pipeline
S3 third circulation line
1 first through hole
2 second through-holes
3 third through-holes
11 first oil pipe lines
12 second oil pipe lines
13 third oil pipe lines
21 first throttle valves
22 second throttle
23 third throttle valves
24 flowmeters
25 first pressure sensors
26 second pressure sensors
Specific embodiment
The scheme of embodiment in order to enable those skilled in the art to better understand the present invention with reference to the accompanying drawing and is implemented
Mode is described in further detail the embodiment of the present invention.
For current automobile fuel pump, in the case where measuring specific operation, the pressure of oil pump, flow have that testing cost is high,
The present invention provides a kind of low-temperature test system and method for automobile fuel pump, transports refrigerating plant to oil pump to be measured by heat exchanger
Capable oil liquid temperature cools down, and solves existing automobile fuel pump and asks cryogenic conditions pressure and data on flows testing cost are high
Topic can improve the accuracy of the running parameter test of automobile fuel pump, improve the safety that automobile uses.
As shown in Figure 1, a kind of low-temperature test system of automobile fuel pump, comprising: refrigerating plant, heat exchanger, experimental box, change
Fast case, circuit control unit, temperature control unit, detection unit and fuel tank.The oil outlet of the gearbox and oil pump to be measured
After oil inlet is connected, it is arranged in the experimental box.The heat exchanger passes through first circulation pipeline S1 and the refrigerating plant
It is connected, the heat exchanger is connected by second circulation pipeline S2 with the experimental box.The oil outlet of the oil pump to be measured passes through
First oil pipe line 11 is connected with fuel tank, the oil return opening that the oil outlet of the oil pump to be measured passes through the second oil pipe line 12 and oil pump to be measured
It is connected, the oil inlet of the oil pump to be measured is connected by third oil pipe line 13 with fuel tank.The circuit control unit is for controlling
The on-off of first oil pipe line 11 and the second oil pipe line 12.The temperature control unit is for controlling the refrigerating plant to institute
The temperature stated in experimental box is adjusted, so that the oil liquid temperature run in the gearbox and the oil pump to be measured is by test requirements document tune
Section.The detection unit is used to detect recycle muzzle pressure, oil outlet pressure and the oil outlet flow of the oil pump to be measured.
Further, system further include: heating combined equipment.The heating combined equipment is handed over by third circulation line S3 and the heat
Parallel operation is connected, the temperature control unit controls the heating combined equipment and the refrigerating plant and the heat of the heat exchanger is handed over
The amount of changing realizes the test of the oil pump to be measured at different temperatures so that the temperature in experimental box to be adjusted.
As shown in Fig. 2, the circuit control unit includes: first throttle valve 21, second throttle 22 and third throttle valve
23.One end that first oil pipe line 11 is connect with the oil outlet of the oil pump to be measured is arranged in the first throttle valve 21, uses
In the flow and pressure of the oil outlet for adjusting the oil pump to be measured.The second throttle 22 is arranged in second oil pipe line 12
The one end being connect with the oil return opening of the oil pump to be measured, the flow of the oil return opening for adjusting the oil pump to be measured.The third
Throttle valve 23 is arranged on first oil pipe line 11, for adjusting the flow of oil pump and fuel tank to be measured.
Further, the detection unit includes: first pressure sensor 25, second pressure sensor 26 and flowmeter 24.
The oil outlet side of the oil pump to be measured is arranged in the first pressure sensor 25, and the second pressure sensor 26 is arranged in institute
The oil return opening side of oil pump to be measured is stated, the oil outlet of first oil pipe line 11 and the oil pump to be measured is arranged in the flowmeter 24
One end of connection.
The temperature control unit includes: temperature sensor (not shown).The temperature sensor is for detecting institute
State the oil liquid temperature run in gearbox and the oil pump to be measured.It should be noted that temperature sensor can be set in gearbox
Chamber may also be arranged in the oil pipe of oil pump out of the mouth, and multiple temperature can be arranged according to actual needs and pass device.
As shown in Figure 3,4, the experimental box includes: oil drain pan.The oil drain pan is bolted with the gear box casing,
The oil drain pan is used to connect the gearbox with the oil pump to be measured the dust-proof of oil circuit interface, splashproof and pipeline guiding.Institute
It states oil drain pan and is additionally provided with the first groove body and the second groove body, first groove body is equipped with first through hole 1 and the second through-hole 2, and described the
Two groove bodies are equipped with third through-hole 3.
First oil pipe line 11 passes through the first through hole 1, first throttle valve 21 and flowmeter 24, the third throttles
Valve 23 is connected with fuel tank.Second oil pipe line 12 passes through the second throttle 22 and the second through-hole 2 and oil pump oil return to be measured
Mouth is connected.The third oil pipe line 13 is connected by the third through-hole 3 with the fuel tank.
Further, the oil drain pan edge is equipped with multiple lugs, and bolt hole is equipped in the lug, and the oil drain pan is logical
The bolt hole is crossed to connect with the gear box casing.
Further, the refrigerating plant is outdoor cooling tower and/or indoor freezing unit, and the heating combined equipment is that electricity adds
Hot systems.
In practical applications, it after building up pilot system platform according to the connection of Fig. 2 schematic diagram, (can will be examined from pressure sensor
Survey oil pump out of the mouth pressure), gearbox built-in temperature sensor module (detection speed change box cavity oil liquid temperature), flowmeter (inspection
Survey oil pump out of the mouth flow) draw harness be connected respectively on 2 industrial personal computers, pressure sensor harness is connected with flowmeter harness
Same industrial personal computer, gearbox built-in sensors module are individually connected to an industrial personal computer.Keep gearbox whole by refrigerating plant
Machine temperature and oil liquid temperature are reduced to -40 DEG C or so (can be according to test needs, the cryogenic temperature that selection is suitble to oneself to need).It drives
Dynamic gantry motor, one stabilized (steady-state) speed of oil-feed pump, such as 1000rpm make oil pump out of the mouth by adjusting the aperture of each throttle valve
Pressure is stablized in 5bar or so, and the temperature spot of oneself needs, such as -30 DEG C are reached to temperature, record oil pump out of the mouth at this time
Flow records this group of data.This kind of throttle valve open and-shut mode simulates oil pump oil return opening does not have the operating condition of flow, if necessary to detect
Through-current capability or flow, the pressure of oil return opening can close third throttle valve, second throttle standard-sized sheet entirely, according to test needs
Adjust the aperture of first throttle valve.So far, the pressure flow of an operating point, which is tested, completes, can be according to oneself to measurement condition point
Needs adjust the flow value that corresponding operating point is recorded to different temperature, pressure, revolving speed, can so establish as needed
Suitable pressure fuel pump data on flows library.
As it can be seen that the present invention provides a kind of low-temperature test system of automobile fuel pump, treat refrigerating plant by heat exchanger
The oil liquid temperature for surveying oil pump operation cools down, and solves existing automobile fuel pump in cryogenic conditions pressure and data on flows testing cost
High problem can improve the accuracy of the running parameter test of automobile fuel pump, improve the safety that automobile uses.
The present invention also provides a kind of low-temperature test methods of automobile fuel pump, comprising:
Step 1: setting is by refrigerating plant by the way that heat exchanger is oil liquid cooling that gearbox and oil pump to be measured are run the
One circulation line and second circulation pipeline.
Step 2: the first oil pipe line that oil pump out of the mouth to be measured is connected with fuel tank is set.
Step 3: the second oil pipe line that oil pump out of the mouth to be measured is connected with oil pump oil return opening to be measured is set；
Step 4: the third oil pipe line that oil pump oil inlet to be measured is connected with fuel tank is set.
Step 5: at different temperatures, by controlling the on-off of first oil pipe line and the second oil pipe line, come obtain to
Survey recycle muzzle pressure, oil outlet pressure and the oil outlet flow of oil pump.
Further, further includes:
Step 6: setting is by heating combined equipment by the way that heat exchanger is oil liquid heating that gearbox and oil pump to be measured are run the
Three circulation lines.
Step 7: the internal circulating load by controlling the first circulation pipeline and the second circulation pipeline adjusts the third
The temperature of circulation line tests the oil pump to be measured at different temperatures.
As it can be seen that the present invention provides a kind of low-temperature test method of automobile fuel pump, treat refrigerating plant by heat exchanger
The oil liquid temperature for surveying oil pump operation cools down, and solves existing automobile fuel pump in cryogenic conditions pressure and data on flows testing cost
High problem can improve the accuracy of the running parameter test of automobile fuel pump, improve the safety that automobile uses.
Structure, feature and effect of the invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (7)
1. a kind of low-temperature test system of automobile fuel pump characterized by comprising refrigerating plant, heat exchanger, experimental box, change
Fast case, circuit control unit, temperature control unit, detection unit and fuel tank；
After the gearbox is connected with oil pump to be measured, it is arranged in the experimental box；
The heat exchanger is connected by first circulation pipeline with the refrigerating plant, and the heat exchanger passes through second circulation pipe
Road is connected with the experimental box；
The oil outlet of the oil pump to be measured is connected by the first oil pipe line with fuel tank, and the oil outlet of the oil pump to be measured passes through second
Oil pipe line is connected with the oil return opening of the oil pump to be measured, and the fuel tank passes through the oil inlet of third oil pipe line and the oil pump to be measured
It is connected；
The circuit control unit is for controlling first oil pipe line and the second oil pipe line；
The circuit control unit includes: first throttle valve, second throttle and third throttle valve；
One end that first oil pipe line is connect with the oil outlet of the oil pump to be measured is arranged in the first throttle valve, for adjusting
Save the flow of the oil outlet of the oil pump to be measured；
One end that second oil pipe line is connect with the oil return opening of the oil pump to be measured is arranged in the second throttle, for adjusting
Save the flow of oil pump oil return opening to be measured；
The third throttle valve is arranged on first oil pipe line, for adjusting the flow of oil pump and fuel tank to be measured；
The temperature control unit is used to control the refrigerating plant and adjusts to the temperature in the experimental box, so that the speed change
The oil liquid temperature run in case and the oil pump to be measured is adjusted by test requirements document；
The detection unit is used to detect recycle muzzle pressure, oil outlet pressure and the oil outlet flow of the oil pump to be measured.
2. the low-temperature test system of automobile fuel pump according to claim 1, which is characterized in that further include: heating combined equipment；
The heating combined equipment is connected by third circulation line with the heat exchanger, and the temperature control unit controls the system
The heat exchange amount of thermal and the refrigerating plant and the heat exchanger is realized so that the temperature in experimental box is adjusted
The test of the oil pump to be measured at different temperatures.
3. the low-temperature test system of automobile fuel pump according to claim 2, which is characterized in that the detection unit includes:
First pressure sensor, second pressure sensor and flowmeter；
The oil outlet side of the oil pump to be measured is arranged in the first pressure sensor, and the second pressure sensor is arranged in institute
The oil return opening side of oil pump to be measured is stated, the flowmeter is arranged in first oil pipe line and connect with the oil outlet of the oil pump to be measured
One end.
4. the low-temperature test system of automobile fuel pump according to claim 3, which is characterized in that the temperature control unit packet
It includes: temperature sensor；
The temperature sensor is for detecting the oil liquid temperature run in the gearbox and the oil pump to be measured.
5. the low-temperature test system of automobile fuel pump according to claim 4, which is characterized in that the experimental box includes: to connect
Food tray；
The oil drain pan is bolted with the gear box casing, and the oil drain pan is used for the gearbox and the oil to be measured
Pump connection the dust-proof of oil circuit interface, splashproof and pipeline guiding；
The oil drain pan is additionally provided with the first groove body and the second groove body, and first groove body is equipped with first through hole and the second through-hole, institute
The second groove body is stated equipped with third through-hole；
First oil pipe line pass through the first through hole, the first throttle valve, the flowmeter, the third throttle valve with
Fuel tank is connected；
Second oil pipe line passes through the second through-hole and the second throttle is connected with oil pump oil return opening to be measured；
The third oil pipe line is connected by the third through-hole with the fuel tank.
6. the low-temperature test system of automobile fuel pump according to claim 5, which is characterized in that the oil drain pan edge is equipped with
Multiple lugs, are equipped with bolt hole in the lug, and the oil drain pan is connect by the bolt hole with the gear box casing.
7. the low-temperature test system of automobile fuel pump according to claim 6, which is characterized in that the refrigerating plant is outdoor
Cooling tower and/or indoor freezing unit, the heating combined equipment are electric heating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891086.5A CN107816430B (en) | 2017-09-27 | 2017-09-27 | A kind of low-temperature test system of automobile fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891086.5A CN107816430B (en) | 2017-09-27 | 2017-09-27 | A kind of low-temperature test system of automobile fuel pump |
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| Publication Number | Publication Date |
|---|---|
| CN107816430A CN107816430A (en) | 2018-03-20 |
| CN107816430B true CN107816430B (en) | 2019-04-16 |
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| CN201710891086.5A Active CN107816430B (en) | 2017-09-27 | 2017-09-27 | A kind of low-temperature test system of automobile fuel pump |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678938B (en) * | 2018-05-09 | 2019-12-17 | 中国人民解放军空军工程大学 | Performance degradation test method for airborne fuel pump |
| CN113503216A (en) * | 2021-08-25 | 2021-10-15 | 一汽解放汽车有限公司 | Diesel engine fuel supply system and testing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100218169B1 (en) * | 1996-12-28 | 1999-09-01 | 정몽규 | Oil-pump tester |
| CN101469699B (en) * | 2007-12-25 | 2012-06-27 | 上海华普汽车有限公司 | System for detecting oil pumping performance of engine oil pump |
| CN201653688U (en) * | 2010-04-16 | 2010-11-24 | 常州精瑞自动化装备技术有限公司 | Low-temperature oil supply system for automobile detecting and testing device |
| CN202187746U (en) * | 2011-08-18 | 2012-04-11 | 陈吉宽 | Thick oil heating device |
| CN104131971B (en) * | 2014-08-01 | 2016-03-30 | 盛瑞传动股份有限公司 | Oil pump test system |
| CN105020128B (en) * | 2015-07-06 | 2017-01-25 | 安徽精科检测技术有限公司 | Comprehensive performance test bed of fuel pumps |
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2017
- 2017-09-27 CN CN201710891086.5A patent/CN107816430B/en active Active
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