CN208350374U - A kind of engine rig test charge-air cooling system - Google Patents
A kind of engine rig test charge-air cooling system Download PDFInfo
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- CN208350374U CN208350374U CN201820758650.6U CN201820758650U CN208350374U CN 208350374 U CN208350374 U CN 208350374U CN 201820758650 U CN201820758650 U CN 201820758650U CN 208350374 U CN208350374 U CN 208350374U
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Abstract
A kind of engine rig test charge-air cooling system, including the intercooler module for controlling engine booster air temperature, for providing the thermostatted water module of the stable thermostatted water of pressure and temperature for intercooler module, Signal Regulation intercooler module for being fed back according to sensor module in intercooler module, thermostatted water module, in thermostatted water module ratio valve module aperture to control the microcomputerized controller of engine booster air temperature.The utility model solves during previous engine rig test, and old-fashioned water-air intercooler cooling medium is unstable, temperature controls the temperature that unstable, temperature control response is slow, controls and is not inconsistent with vehicle actual conditions, is unsatisfactory for the problems such as national emission regulation.The utility model is high to the control precision of charge-air temperature, and control response is fast, effectively improves the efficiency of engine test.
Description
Technical field
The utility model relates to engine rig test field, a kind of engine rig test charge-air cooling system.
Background technique
With the raising that national environmental protection is realized, more manufacturers apply charge inter cooling technology on the engine, to answer
To national emission regulation plus tight.Pressurization can make engine achieve the purpose that increase output power in the case where discharge capacity is constant,
But air is with the raising of pressure that its temperature can also increase.Pressurized air is cooled down by cooler, can be effectively improved
Density of the induced air increases output power, reduces the oxynitrides (NOx) generated in combustion process.
During bench test, since the temperature of pressurized air influences very the performance of engine and emission level
Greatly.The whole temperature for using charger-air cooler and recording pressurized air during national emission regulation demands test.Start
Charge-air temperature under machine declared working condition should be maintained within the scope of maximum value ± 5K as defined in manufacturing enterprise, cooling medium
Temperature at least should be 293K(20 DEG C), do not allow to change the temperature of cooling medium in entire test cycle.Manufacturer Ying Shi
The cooling volume of pressurized air is provided according to the engineering experience of practical entrucking before testing, and puts net condensed water before emission testing starts.
The cooling medium of cooler is surrounding air on vehicle, and in bench test, since laboratory space limits and saves
The considerations of cost, generallys use water-air intercooler and is simulated.Variation and environment in vehicle driving conditions, due to speed
Variation, the state of cooler cooling medium can change, and cooling efficiency can also generate variation.In bench test, commonly
Water-air intercooler be the work condition state that can not simulate vehicle completely.
A kind of novel engine rig test increasing need to be designed to adapt to the requirement of national emission regulation and vehicle simulation
Press air-cooling apparatus.
Summary of the invention
The purpose of the invention of the present invention is to overcome the above-mentioned deficiency of the prior art, and provide a kind of pair of pressurized air
The control precision of temperature is high, the fast engine rig test charge-air cooling system of control response, effectively improves engine examination
The efficiency tested.
The technical solution of the utility model is: including the intercooler module for controlling engine booster air temperature, using
In providing the thermostatted water module of the stable thermostatted water of pressure and temperature for intercooler module, for according to intercooler module, constant temperature
Sensor module is fed back in water module Signal Regulation intercooler module, in thermostatted water module ratio valve module aperture to control
The microcomputerized controller of engine booster air temperature.
The intercooler module includes intercooler, and intercooler return water proportioning valve is loaded on intercooler water return pipeline, pressurizing air
Gas bypass proportioning valve is mounted on the air inlet of intercooler and the bypass line of air outlet pipe, charge-air temperature sensing
Device is mounted on the air outlet pipe of intercooler；The thermostatted water module includes freezing unit, Thermostating water device water tank, freezing
Chilled water temperature sensor, chilled water pressure sensor, Thermostating water device radiator drain road are housed on unit outlet pipeline
Equipped with heater, heat-exchangers of the plate type, constant temperature water temperature sensor, freezes and pass through thermostatted water between unit and heat-exchangers of the plate type
Temperature controls the connection of threeway proportioning valve, and the effect of constant temperature coolant-temperature gage control threeway proportioning valve is to adjust to enter heat-exchangers of the plate type
Chilled water water increases ratio valve opening when Thermostating water device water temperature over-high, increases the freezing water into heat-exchangers of the plate type
Add capable heat dissipation；Laboratory's water system is separately connected freezing unit, Thermostating water device water tank, intercooler；Microcomputerized controller with it is cold
Freeze water temperature sensor, chilled water pressure sensor, constant temperature coolant-temperature gage control threeway proportioning valve, heater, constant temperature coolant-temperature gage to pass
Sensor, intercooler return water proportioning valve, charge air bypasses proportioning valve, the connection of charge-air temperature sensor；The freezing temperature
It spends sensor, chilled water pressure sensor, constant temperature water temperature sensor, charge-air temperature sensor and forms sensor module；
The constant temperature coolant-temperature gage controls threeway proportioning valve, intercooler return water proportioning valve, charge air bypasses proportioning valve composition ratio valve group
Part.Microcomputerized controller receives chilled water temperature sensor, chilled water pressure sensor chilled water temperature pressure feedback signal, passes through
Control freezing unit starting and closing, control the temperature of chilled water；Microcomputerized controller receives constant temperature water temperature sensor thermostatted water
Constant temperature water management is being arranged in range by control heater, heat-exchangers of the plate type for temperature feedback signal；Microcomputerized controller connects
The charge-air temperature feedback signal for receiving charge-air temperature sensor, enters intercooler by intercooler return water ratio valve regulation
Constant temperature water flow, the temperature of pressurized air can be quickly adjusted by charge air bypasses proportioning valve.
The Thermostating water device water tank is equipped with cistern water level position sensor, water tank overflow channel, tank drains ball valve, permanent
Water-warming device tank inlet pipe road is equipped with the thermostatted water module automatic water compensating valve connecting with microcomputerized controller, Thermostating water device water
Case outlet pipeline is equipped with water tank and ends ball valve.
The Thermostating water device radiator drain road is additionally provided with water pump, the one-way flow connecting with microcomputerized controller sensing
Device has monitored whether that water enters water pump by one-way flow sensor, prevents water pump from damaging because not having water idle running.
The utility model solves during previous engine rig test, and old-fashioned water-air intercooler cooling medium is not
Stablize, temperature controls the temperature that unstable, temperature control response is slow, controls and is not inconsistent with vehicle actual conditions, is unsatisfactory for national row
The problems such as putting regulation.The control precision to charge-air temperature greatly improved after installation is implemented in utility model device,
Accelerate control response.Such as ESC test cycle as defined in national emission regulation, work is completed within 2 minutes between operating condition
Condition conversion, stable conditions, data acquisition and etc., tested according to the mode by operating conditions charge-air temperature, it is old
The water-air intercooler of formula is difficult before the deadline to stablize charge-air temperature, and using utility model device can expire
Sufficient test requirements document.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure.
In figure: 1 is laboratory's water system, and 1a is water system water supply ball valve, and 1b is water system return water ball valve, and 1c is freezing
Unit moisturizing ball valve, 1d are thermostatted water module automatic water compensating valve.2 be freezing unit, and 2a is freezing unit return water ball valve, and 2b is cold
Freeze unit water supply ball valve, 2c is chilled water temperature sensor, and 2d is chilled water pressure sensor.3 be intercooler, and 3a is to start
Machine, 3b are intercooler return water proportioning valve, and 3c is charge air bypasses proportioning valve, and 3d is intercooler drainage ball valve, and 3e is pressurizing air
Gas temperature sensor.4 be thermostatted water module water tank, and 4a is cistern water level position sensor, and 4b is water tank overflow channel, and 4c is water
Case drainage ball valve, 4e are that water tank ends ball valve, and 4f is one-way flow sensor, and 4g is water pump, and 4h is heater, and 4i is board-like heat
Exchanger, 4j are that constant temperature coolant-temperature gage controls threeway proportioning valve, and 4k is constant temperature water temperature sensor, and 4l is manual bypass ball valve, 4m
End ball valve for auto bypass, 4n is adjustable differential-pressure bypass valve, and 4o is constant temperature water temperature sensor, and 4p is constant temperature water pressure biography
Sensor, 4q are thermostatted water module water supply ball valve, and 4r is thermostatted water module return water ball valve.5 be microcomputerized controller.
Specific embodiment
It is further illustrated below in conjunction with specific embodiment of the attached drawing to the utility model patent:
Device is divided into two parts, thermostatted water module and intercooler module in the utility model.Thermostatted water module includes freezing
The components such as unit 2, heater 4h, heat-exchangers of the plate type 4i, proportioning valve, microcomputerized controller 5, for providing pressure for intercooler module
Power and the stable thermostatted water of temperature.Intercooler module includes the portions such as intercooler 3, proportioning valve, microcomputerized controller 5, bypass proportioning valve
Part, for controlling the temperature of engine booster air.The thermostatted water module of the utility model has heating function, the cold module in
Thermostatted water block heater 4h is actuated for heating in the lower situation of return water temperature；The cold higher feelings of module return water temperature in
Under condition, the heat-exchangers of the plate type 4i of thermostatted water module radiates, and cooling stabilization is accurately controlled by proportioning valve；Thermostatted water module
Can be with output temperature in 20-30 DEG C of controllable cooling water, the temperature deviation at control point is less than ± 2 DEG C.The water outlet of thermostatted water module
Mouthful it is mounted with adjustable differential-pressure bypass valve, when pressure of supply water is more than setting value, device releasing pressure automatically and should be able to be maintained at setting
It is worth in deviation range, control deviation is the ± 0.1bar of setting value.
The intercooler module of the utility model passes through the water flow size of intercooler by the proportional valve control of return pipe, can
The temperature of pressurized air is controlled within the scope of 40-60 DEG C of arbitrary temp, the temperature deviation at control point is less than ± 2 DEG C.Work as water
In the immovable situation of flow, the air inlet and exhaust of intercooler have bypass all the way with proportioning valve, can respond pressurized air
Temperature setting.
The principles of the present invention are to export thermostatted water by thermostatted water module to increase the engine Jing Guo intercooler module
The temperature of pressure air is controlled.Thermostatted water module exports thermostatted water to intercooler module, and intercooler module controls pressurized air
Temperature.Dotted line is circuit in figure, and microcomputerized controller 5 controls thermostatted water module automatic water compensating valve 1d, chilled water temperature sensor
2c, chilled water pressure sensor 2d, cistern water level position sensor 4a, water pump 4g, one-way flow sensor 4f, heater 4h,
Constant temperature coolant-temperature gage controls threeway proportioning valve 4j, constant temperature water temperature sensor 4k, intercooler return water proportioning valve 3b, charge air bypasses
The components such as proportioning valve 3c, charge-air temperature sensor 3e control the aperture of proportioning valve, control by acquiring the signal of sensor
Pressurized air processed enters the temperature of engine.Constant temperature water temperature sensor 4o, constant temperature water pressure sensor 4p are that mechanical instruction passes
Sensor can check the temperature, pressure of output before equipment.
Water flow carries out flowing 4-4e-4f-4g-4h-4i-4q-3-3b-4r- according to following route when device works normally
4。
Thermostatted water module water tank 4 stores the water of certain liquid level, when cistern water level position sensor 4a shows liquid level warning
When, thermostatted water module automatic water compensating valve 1d moisturizing can be opened；When liquid level transfinites, water tank overflow channel 4b overflow pipe
Road draining.One-way flow sensor 4f monitoring water flow can protect water pump 4g, and water pump 4g establishes system pressure, and 4h is in engine
Thermostatted water is heated in the insufficient situation of thermic load, heat-exchangers of the plate type 4i can radiate to thermostatted water, and entrance is board-like
The chilled water of heat exchanger 4i takes away the heat of thermostatted water module.The pressure of supply water of thermostatted water by manual bypass ball valve 4l and
Auto bypass cut-off ball valve 4m, adjustable differential-pressure bypass valve 4n are adjusted, and device can be set in adjustable differential-pressure bypass valve 4n
Pressure of supply water automatically opens bypass pressure release when pressure is more than setting value；Manual bypass ball valve 4l can also be opened manually simultaneously
Device pressure of supply water is set.
It is anti-that microcomputerized controller 5 receives chilled water temperature sensor 2c, chilled water pressure sensor 2d chilled water temperature pressure
Feedback signal by control freezing unit 2 starting and closes, controls the temperature of chilled water；Microcomputerized controller 5 receives 4k constant temperature water temperature
Feedback signal is spent, constant temperature water management is being arranged in range by control heater 4h, heat-exchangers of the plate type 4i；Microcomputerized controller
5 receive charge-air temperature sensor 3e charge-air temperature signals feedback, by intercooler return water proportioning valve 3b adjust into
The constant temperature water flow for entering intercooler 3 can quickly adjust the temperature of pressurized air by charge air bypasses proportioning valve 3c, accelerate
Response opens intercooler drainage ball valve 3d and the condensed water of intercooler 3 is discharged before engine test operation.
When device maintenance or failure, alternative scheme can be reinstated in the case where the temperature of cooling water is suitably adjusted.This
When intercooler cooling water running route be 1-1a-3-3b-1b-1.
The utility model had both been able to satisfy the requirement of national emission regulation, and also could by the combination of simple and practical components
Improve the efficiency of engine test.
Claims (4)
1. a kind of engine rig test charge-air cooling system, it is characterised in that: including for controlling engine booster sky
The intercooler module of temperature degree is used for providing the thermostatted water module of the stable thermostatted water of pressure and temperature for intercooler module
In the Signal Regulation intercooler module fed back according to sensor module in intercooler module, thermostatted water module, in thermostatted water module
The aperture of ratio valve module is to control the microcomputerized controller (5) of engine booster air temperature.
2. engine rig test charge-air cooling system according to claim 1, it is characterised in that: the intercooler
Module includes intercooler (3), and intercooler return water proportioning valve (3b) is loaded on intercooler (3) water return pipeline, charge air bypasses ratio
Example valve (3c) is mounted on the air inlet of intercooler and the bypass line of air outlet pipe, charge-air temperature sensor
(3e) is mounted on the air outlet pipe of intercooler；
The thermostatted water module includes freezing unit (2), Thermostating water device water tank (4), freezes and is equipped on unit (2) outlet pipeline
Chilled water temperature sensor (2c), chilled water pressure sensor (2d), equipped with heating on Thermostating water device water tank (4) outlet pipeline
Device (4h), heat-exchangers of the plate type (4i), constant temperature water temperature sensor (4k), freezing unit (2) and heat-exchangers of the plate type (4i) it
Between by constant temperature coolant-temperature gage control threeway proportioning valve (4j) connection；
Laboratory's water system (1) is separately connected freezing unit (2), Thermostating water device water tank (4), intercooler (3)；
Microcomputerized controller (5) and chilled water temperature sensor (2c), chilled water pressure sensor (2d), constant temperature coolant-temperature gage control three
Logical proportioning valve (4j), heater (4h), constant temperature water temperature sensor (4k), intercooler return water proportioning valve (3b), by pressurized air
Logical proportioning valve (3c), charge-air temperature sensor (3e) connection；
The chilled water temperature sensor (2c), chilled water pressure sensor (2d), constant temperature water temperature sensor (4k), pressurizing air
Gas temperature sensor (3e) forms sensor module；The constant temperature coolant-temperature gage controls threeway proportioning valve (4j), intercooler return water ratio
Example valve (3b), charge air bypasses proportioning valve (3c) composition ratio valve module.
3. engine rig test charge-air cooling system according to claim 2, it is characterised in that: the thermostatted water
Device water tank (4) is equipped with cistern water level position sensor (4a), water tank overflow channel (4b), tank drains ball valve (4c), constant temperature
Water installations water tank (4) inlet pipeline is equipped with the thermostatted water module automatic water compensating valve (1d) connecting with microcomputerized controller (5), constant temperature
Water installations water tank (4) outlet pipeline is equipped with water tank cut-off ball valve (4e).
4. engine rig test charge-air cooling system according to claim 2, it is characterised in that: the thermostatted water
The one-way flow sensor (4f) for being additionally provided with water pump (4g) on device water tank (4) outlet pipeline, being connect with microcomputerized controller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758650.6U CN208350374U (en) | 2018-05-22 | 2018-05-22 | A kind of engine rig test charge-air cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758650.6U CN208350374U (en) | 2018-05-22 | 2018-05-22 | A kind of engine rig test charge-air cooling system |
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| Publication Number | Publication Date |
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| CN208350374U true CN208350374U (en) | 2019-01-08 |
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| CN201820758650.6U Active CN208350374U (en) | 2018-05-22 | 2018-05-22 | A kind of engine rig test charge-air cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766069A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Cold analogue means in engine |
| CN114439605A (en) * | 2022-01-19 | 2022-05-06 | 东风汽车股份有限公司 | Intercooling temperature test control device |
-
2018
- 2018-05-22 CN CN201820758650.6U patent/CN208350374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766069A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Cold analogue means in engine |
| CN114439605A (en) * | 2022-01-19 | 2022-05-06 | 东风汽车股份有限公司 | Intercooling temperature test control device |
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