CN106482955A - The fuel oil constant temperature apparatus of diesel engine - Google Patents
The fuel oil constant temperature apparatus of diesel engine Download PDFInfo
- Publication number
- CN106482955A CN106482955A CN201611120505.7A CN201611120505A CN106482955A CN 106482955 A CN106482955 A CN 106482955A CN 201611120505 A CN201611120505 A CN 201611120505A CN 106482955 A CN106482955 A CN 106482955A
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- oil
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of fuel oil constant temperature apparatus of diesel engine.This fuel oil constant temperature apparatus includes：Controller；Heating heat exchanger, this fuel consumption meter oil-feed port is provided with inlet oil temperature sensor；Described cooling water outlet interface is provided with electromagnetic valve, and this electromagnetic valve is connected with described controller；Threeway ratio adjusting valve；Cooling heat exchanger, the heating oil outlet of described heating heat exchanger cools down the cooling-oil inlet of heat exchanger and the second inlet communication of described threeway ratio adjusting valve, the first inlet communication of described cooling-oil outlet and threeway ratio adjusting valve with described respectively；And exhaust gas collection cylinder, there is oil-in and oil-out, the oil-in of described exhaust gas collection cylinder and the outlet of threeway ratio adjusting valve, the top of described exhaust gas collection cylinder is provided with automatic exhaust steam valve, and the oil-out of described exhaust gas collection cylinder is provided with oil outlet temperature sensor.This fuel oil constant temperature apparatus solves the problems, such as that the internal air-discharging of diesel oil thermostat is difficult.
Description
Technical field
The present invention relates to engine test field, particularly to a kind of fuel oil constant temperature apparatus of diesel engine.
Background technology
According to standard GB/T 1105.3-87《On Internal Combustion Engine Platform method for testing performance e measurement technology》And GB/T18297-
2001《Automobile engine method for testing performance》Regulation, during engine test, diesel fuel temperature should control in 311K ± 5K
(38 DEG C ± 5 DEG C), to ensure the accuracy of Diesel engine performance parameter measurement result.
Send out diesel oil thermostat used in machine test equipment at present, the pipeline within diesel oil thermostat is all suddenly upper neglecting
Under, in the test process of diesel engine, diesel systems can produce gas in running, and diesel oil is in the process of heating and cooling
In also can produce gas.When gas flows through diesel oil thermostat, will there is the pipeline of the internal eminence of device in these gases, when
When there are air in pipeline, the lighter causes the certainty of measurement of diesel oil influence of fluctuations diesel consumption rate, forms gas and block up when serious, bavin
Oil does not circulate, and causes the diesel engine tested to stop because lacking diesel oil.During the air of exclusion internal pipeline, internal pipeline need to be torn open
Or plus the mode such as pump just enable to exclude air.Diesel oil constant temperature is the size adjusting heat exchanger cooling water using electronic regulated valve
To reach the mode of adjustment diesel oil temperature, this mode is due to being heated or cooled through over-heat-exchanger and constantly by electronic regulated valve
Adjustment can be only achieved controlled precision, and response speed is slow, and control accuracy is poor.Heating function passes through with electric-heating water or directly
With electric energy Heating Diesel Fuel mode, under relatively rugged environment, the mode using electric energy heating exists very Engine Block Test oil-water-gas ratio
Big potential safety hazard, and use the waste of energy energy.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
Recognize when being considered or imply in any form that this information structure has been the prior art well known to persons skilled in the art.
Content of the invention
It is an object of the invention to provide a kind of fuel oil constant temperature apparatus of simple and reasonable diesel engine, this diesel engine
Fuel oil constant temperature apparatus install automatic exhaust steam valve in the extreme higher position of pipeline, and the air above exclusion diesel oil, solves diesel oil automatically
The difficult problem of the internal air-discharging of thermostat；And this diesel oil thermostat directly passes through to adjust high temperature diesel oil and low temperature diesel oil
Ratio, directly reach the requirement of diesel fuel temperature control, there is fast response time, control accuracy high.
For achieving the above object, the invention provides a kind of fuel oil constant temperature apparatus of diesel engine, the fuel oil of this diesel engine is permanent
Warm device includes：Controller；Heating heat exchanger, it has fuel consumption meter oil-feed port, heating oil outlet, diesel oil oil return opening, cooling
Water outlet mouthpiece and cooling water inlet interface, this fuel consumption meter oil-feed port is provided with inlet oil temperature sensor, this inlet oil temperature sensor with
Described controller connects；Described cooling water outlet interface is provided with electromagnetic valve, and this electromagnetic valve is connected with described controller；Threeway ratio
Regulating valve, it is connected with described controller, and has the first import, the second inlet and outlet；Cooling heat exchanger, it has cold
But water inlet, coolant outlet, cooling-oil inlet and cooling-oil outlet, the heating oil outlet of described heating heat exchanger respectively with
The described cooling cooling-oil inlet of heat exchanger and the second inlet communication of described threeway ratio adjusting valve, described cooling-oil outlet
The first inlet communication with threeway ratio adjusting valve；And exhaust gas collection cylinder, there is oil-in and oil-out, described exhaust gas collection
The oil-in of cylinder is provided with automatic exhaust steam valve with the outlet of threeway ratio adjusting valve, the top of described exhaust gas collection cylinder, institute
The oil-out stating exhaust gas collection cylinder is provided with oil outlet temperature sensor, and this oil outlet temperature sensor is connected with described controller.
Preferably, in technique scheme, the voltage of the control circuit of controller is direct current DC24V.
Preferably, in technique scheme, automatic exhaust steam valve is float-type automatic exhaust valve.
Preferably, in technique scheme, the position of diesel oil oil return opening is higher than fuel consumption meter oil-feed port.
Preferably, in technique scheme, cooling water outlet interface is connected with the outlet of engine-cooling system, described cold
But water inlet interface is connected with the water inlet of engine-cooling system.
Preferably, in technique scheme, cooling heat exchanger is arranged on the top of described heating heat exchanger；Described from
Dynamic air bleeding valve is located at the top of described cooling heat exchanger, and described fuel consumption meter oil-feed port is located under described heating heat exchanger
Portion, the connecting line between described heating heat exchanger and cooling heat exchanger is laid from low to high, described cooling heat exchanger
Connecting line and exhaust gas collection cylinder between is laid from low to high.
Compared with prior art, the present invention has the advantages that：The fuel oil constant temperature apparatus of this diesel engine are in pipeline
Automatic exhaust steam valve is installed in extreme higher position, automatically the air above exclusion diesel oil, solves the internal air-discharging of diesel oil thermostat and is stranded
Difficult problem；And this diesel oil thermostat directly passes through to adjust the ratio of high temperature diesel oil and low temperature diesel oil, directly reaches diesel oil
Temperature controlled requirement, has fast response time, control accuracy height.
Brief description
Fig. 1 is the main structure diagram of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Fig. 2 is the side structure schematic view of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Fig. 3 is the overlooking the structure diagram of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Fig. 4 is the theory structure schematic diagram of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Fig. 5 is the automatic exhaust steam valve closing structure schematic diagram of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Fig. 6 is the automatic exhaust steam valve Unclosing structure schematic diagram of the fuel oil constant temperature apparatus of diesel engine of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredient.
As shown in Figure 1 to Figure 3, the concrete structure of the fuel oil constant temperature apparatus of the diesel engine according to the specific embodiment of the invention
Including：Controller 12, inlet oil temperature sensor 1, heating heat exchanger 2, cooling heat exchanger 3, threeway ratio adjusting valve 4, row
Gas surge drum 5, automatic exhaust steam valve 6 and oil outlet temperature sensor 7.Wherein, heating heat exchanger 2 has fuel consumption meter oil-feed port, adds
Hot oil outlet, diesel oil oil return opening, engine-cooling system water outlet mouthpiece and engine-cooling system water inlet interface, fuel consumption meter fuel feeding
Heating heat exchanger 2, engine-cooling system water outlet mouthpiece and engine-cooling system water inlet are entered by fuel consumption meter oil-feed port
Interface is connected with engine-cooling system respectively, and engine-cooling system water outlet mouthpiece is provided with electromagnetic valve 8, using diesel oil in examination
The high-temperature water that during testing, cooling system produces, as heating energy source, enters in heating heat exchanger 2 and diesel oil is heated.Enter
Oil temperature sensor 1 is arranged on fuel consumption meter oil-feed port.Cooling heat exchanger 3 has cooling water inlet, coolant outlet, cooling oil
Import and cooling-oil outlet, cooling-oil outlet is connected with the A mouth of threeway ratio adjusting valve 4, the bavin of heated heat exchanger 2 heating
Oil is bifurcated by its heating oil outlet and flows out, and wherein one cooling-oil inlet with cooling heat exchanger 3 connects, and diesel oil enters
Cooling heat exchanger 3 cools down, more cooled oil export enters the A mouth of threeway ratio adjusting valve 4；Other one directly with threeway ratio
The B mouth connection of example regulating valve 4, the AB mouth (outlet) of threeway ratio adjusting valve 4 is connected with the oil-in of exhaust gas collection cylinder 5, automatically
Air bleeding valve 6 is arranged on the top of exhaust gas collection cylinder 5, and oil outlet temperature sensor 7 is arranged on the oil-out of exhaust gas collection cylinder 5.This dress
Put, after the oil-out of fuel consumption meter oil-feed port and exhaust gas collection cylinder 5, temperature sensor is installed, monitoring cooling in running
Front diesel fuel temperature, when diesel fuel temperature is less than and controls temperature+A to spend, automatically opens up the hot water heating diesel oil of heating heat exchanger.
This device adopts electric three passes ratio adjusting valve as regulating valve, directly passes through to adjust the ratio of high temperature diesel oil and low temperature diesel oil,
Directly reach the requirement of diesel fuel temperature control, have the characteristics that the high right side in device of fast response time, control accuracy is provided with
Exhaust gas collection cylinder, the top position of exhaust gas collection cylinder is connected with cooling exchanger mixing valve, installs at the top of exhaust gas collection cylinder
There is automatic exhaust steam valve, when there being air in device, air converges in exhaust gas collection cylinder along flow direction from low to high, and from aerofluxuss
The automatic exhaust steam valve at surge drum top is discharged.
Specifically, heating heat exchanger 2 has fuel consumption meter oil-feed port 21, heating oil outlet, diesel oil oil return opening 23, starts
Machine cooling system water outlet mouthpiece 24 and engine-cooling system water inlet interface 25, fuel consumption meter fuel feeding is entered by fuel consumption meter oil-feed port
Heating heat exchanger 2, inlet oil temperature sensor 1 is arranged on this fuel consumption meter oil-feed port, and is connected with controller.Diesel oil oil return opening
Position is higher than fuel consumption meter oil-feed port, prevents the air in the oil return of diesel engine from channeling to fuel consumption meter oil-feed port and flows to fuel consumption meter.Start
Machine cooling system water outlet mouthpiece and engine-cooling system water inlet interface outlet, the water inlet with engine-cooling system respectively
Connect, engine-cooling system water outlet mouthpiece is provided with electromagnetic valve 8, and electromagnetic valve 8 is connected with controller, is being tested using diesel oil
The high-temperature water that in journey, cooling system produces, as heating energy source, enters in heating heat exchanger 2 and diesel oil is heated.This device
It is used the diesel oil high-temperature water that cooling system produces in process of the test as heating energy source, connecting diesel oil from diesel water outlet pipe
The hot water having pressure of machine, enters in heating heat exchanger and diesel oil is heated.When inlet oil temperature sensor 1 detects diesel oil
Temperature is less than the temperature+A setting when spending, and controller automatically opens up electromagnetic valve 8, allows high temperature have the diesel engine cycle of certain pressure
The heated exchanger of current, is heated to diesel oil by heat exchanger；When inlet oil temperature sensor 1 detects diesel fuel temperature height
When temperature+the A that the temperature setting sets spends, controller cuts out electromagnetic valve 8, stops the heated exchange of diesel engine cycle current
Device, now heat exchanger stopping is heated to diesel oil.
Threeway ratio adjusting valve 4 is connected with controller, has the first import (A mouth), the second import (B mouth) and outlet (AB
Mouthful).Using electric three passes ratio adjusting valve as regulating valve, directly pass through to adjust the ratio of high temperature diesel oil and low temperature diesel oil, directly
Access the requirement of diesel fuel temperature control, have the characteristics that fast response time, control accuracy are high.
Cooling heat exchanger 3 be arranged on heating heat exchanger 2 top, have cooling water inlet 31, coolant outlet 32,
Cooling-oil inlet and cooling-oil outlet.The heating oil outlet of heating heat exchanger 2 is entered with the cooling oil of cooling heat exchanger 3 respectively
Mouth connects with the B mouth of threeway ratio adjusting valve 4, and cooling-oil outlet is connected with the A mouth of threeway ratio adjusting valve 4, and heated heat is handed over
The diesel oil of parallel operation 2 heating passes through its heating oil outlet and bifurcates outflow, wherein one cooling-oil inlet with cooling heat exchanger 3
Connection, diesel oil enters cooling heat exchanger 3 and cools down, more cooled oil export enters the A mouth of threeway ratio adjusting valve 4；Other one
Prop up the B mouth being directly entered threeway ratio adjusting valve 4.
Exhaust gas collection cylinder 5 is vertically arranged, and has oil-in and oil-out 51, wherein, the oil-in of exhaust gas collection cylinder 5 and three
AB mouth (outlet) connection of logical ratio adjusting valve 4, automatic exhaust steam valve 6 is arranged on the top of exhaust gas collection cylinder 5, and is located at cooling heat
The top of exchanger 3, oil outlet temperature sensor 7 is arranged on the oil-out of exhaust gas collection cylinder 5, and is connected with controller.
This device internal pipe arrangements meet the characteristic of gas and liquid, arrange to automatic from the fuel consumption meter oil-feed port 21 of diesel oil
The pipeline of air valve 6 is all from as little as high, and gas is different from the density of liquid, and, in the presence of with the gases, air is always for liquid
Above diesel oil, automatically exclude the air above diesel oil in the automatic aerofluxuss of installation of the extreme higher position of pipeline, solve diesel oil permanent
The difficult problem of the internal air-discharging of warm device.
As shown in Figure 5 and Figure 6, automatic exhaust steam valve 6 be float-type automatic exhaust valve, in automatic exhaust steam valve diesel oil be not free
, when high-end trim, ball float 10 rises under the power effect of diesel oil 9, valve closing for gas or diesel oil 9.With the sky in air bleeding valve
The increase of gas 11, when liquid level reduces, ball float 10 is floated downward, and valve is opened, and air is discharged from outlet, thus reaching self-bleeding mesh
's.The bottom of exhaust gas collection cylinder is provided with the oil-out of thermostat, and the density ratio air of diesel oil is big, bavin in exhaust gas collection cylinder
In bottom, by designing the automatic exhaust steam valve of float-type, with the operation of diesel engine, continuous air enters the automatic of float-type to oil
Air bleeding valve, is discharged by the float elevating control air of float-type automatic exhaust valve, reaches the air being automatically drained out in diesel oil.By
Discharge from air bleeding valve in air, the diesel oil in exhaust gas collection cylinder bottom does not have air, from exhaust gas collection cylinder bottom oil-out
It is the diesel oil not having air, so that it is guaranteed that the diesel oil entering electromotor is that do not have air.
The voltage of the control circuit that this device is adopted is all direct current DC24V safe voltage, this diesel oil automatic thermostatic device
On control circuit use control instrument and cooling the detached mode of body, control circuit use direct current DC24V safe voltage,
Fundamentally improve the safety of diesel oil Keeping device.
As shown in figure 4, automatically cooling down constant temperature work process：
After engine test starts, when oil outlet temperature sensor 7 detects diesel fuel temperature and is more than design temperature, controller
General controls electric three passes ratio adjusting valve 4 rotates, and increases A-AB passage, reduces B-AB passage, thus increasing the board-like heat of entrance
The diesel oil flow of exchanger heat exchange cooling, reduces the diesel oil flow being directly entered electric three passes ratio adjusting valve 4 so that electronic three
The diesel fuel temperature in logical ratio adjusting valve 4 exit declines.Vice versa, and oil outlet temperature sensor 7 detects diesel fuel temperature and is less than
During design temperature, controller (control electric three passes ratio adjusting valve 4 to rotate, reduce A-AB passage, increase B-AB passage, thus
Reduce the diesel oil flow entering heat-exchangers of the plate type heat exchange cooling, increase the diesel oil being directly entered electric three passes ratio adjusting valve 4
Flow is so that the diesel fuel temperature in electric three passes ratio adjusting valve 4 exit rises.By automatically adjusting of controller pid parameter
The aperture of threeway ratio adjusting valve 4, is finally reached an equilibrium point, the diesel fuel temperature going out diesel oil temperature control system is maintained at setting
Temperature constant state.
To sum up, the fuel oil constant temperature apparatus of this diesel engine install automatic exhaust steam valve in the extreme higher position of pipeline, automatically exclude bavin
The air of oil top, solves the problems, such as that the internal air-discharging of diesel oil thermostat is difficult；And this diesel oil thermostat directly leads to
Cross the ratio of adjustment high temperature diesel oil and low temperature diesel oil, directly reach the requirement of diesel fuel temperature control, there is fast response time, control
High precision.
The description of the aforementioned specific illustrative embodiment to the present invention illustrate that and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much be changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles of the present invention and its reality should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of fuel oil constant temperature apparatus of diesel engine are it is characterised in that include：
Controller；
Heating heat exchanger, it has fuel consumption meter oil-feed port, heating oil outlet, diesel oil oil return opening, cooling water outlet interface and cooling
Water inlet interface, this fuel consumption meter oil-feed port is provided with inlet oil temperature sensor, and this inlet oil temperature sensor is connected with described controller；
Described cooling water outlet interface is provided with electromagnetic valve, and this electromagnetic valve is connected with described controller；
Threeway ratio adjusting valve, it is connected with described controller, and has the first import, the second inlet and outlet；
Cooling heat exchanger, it has cooling water inlet, coolant outlet, cooling-oil inlet and cooling-oil outlet, described heating
The heating oil outlet of heat exchanger respectively with the described cooling cooling-oil inlet of heat exchanger and described threeway ratio adjusting valve
First inlet communication of the second inlet communication, described cooling-oil outlet and threeway ratio adjusting valve；And
Exhaust gas collection cylinder, has oil-in and oil-out, and the oil-in of described exhaust gas collection cylinder is gone out with threeway ratio adjusting valve
Mouthful connection, the top of described exhaust gas collection cylinder is provided with automatic exhaust steam valve, and the oil-out of described exhaust gas collection cylinder is provided with fuel-displaced
Temperature sensor, this oil outlet temperature sensor is connected with described controller.
2. the fuel oil constant temperature apparatus of diesel engine according to claim 1 are it is characterised in that the control circuit of described controller
Voltage be direct current DC24V.
3. the fuel oil constant temperature apparatus of diesel engine according to claim 1 are it is characterised in that described automatic exhaust steam valve is float
Formula automatic exhaust steam valve.
4. the fuel oil constant temperature apparatus of diesel engine according to claim 1 are it is characterised in that the position of described diesel oil oil return opening
Higher than fuel consumption meter oil-feed port.
5. diesel engine according to claim 1 fuel oil constant temperature apparatus it is characterised in that described cooling water outlet interface with send out
The outlet of motivation cooling system connects, and described cooling water inlet interface is connected with the water inlet of engine-cooling system.
6. the fuel oil constant temperature apparatus of diesel engine according to claim 1 are it is characterised in that described cooling heat exchanger is arranged
Above described heating heat exchanger；Described automatic exhaust steam valve is located at the top of described cooling heat exchanger, described fuel consumption meter
Oil-feed port is located at the bottom of described heating heat exchanger, the connecting line between described heating heat exchanger and cooling heat exchanger
Lay from low to high, the connecting line between described cooling heat exchanger and exhaust gas collection cylinder is laid from low to high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611120505.7A CN106482955A (en) | 2016-12-08 | 2016-12-08 | The fuel oil constant temperature apparatus of diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120505.7A CN106482955A (en) | 2016-12-08 | 2016-12-08 | The fuel oil constant temperature apparatus of diesel engine |
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| CN201611120505.7A Pending CN106482955A (en) | 2016-12-08 | 2016-12-08 | The fuel oil constant temperature apparatus of diesel engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107289806A (en) * | 2017-06-22 | 2017-10-24 | 兰州蓝星纤维有限公司 | The temperature controlled devices and methods therefor of stoste before a kind of carbon fibre precursor is spun |
| CN109252991A (en) * | 2018-08-01 | 2019-01-22 | 中国煤炭科工集团太原研究院有限公司 | It is a kind of based on automatically controlled anti-explosion diesel engine air inlet fuel oil constant temperature apparatus |
| CN110243607A (en) * | 2019-07-12 | 2019-09-17 | 吉孚动力技术(中国)有限公司 | A kind of engine performance test stand frame oil temperature control system |
| CN111537704A (en) * | 2020-05-20 | 2020-08-14 | 四川大学 | Online measurement device and method for concentration of dissolved oxygen in fuel oil |
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| CN107289806A (en) * | 2017-06-22 | 2017-10-24 | 兰州蓝星纤维有限公司 | The temperature controlled devices and methods therefor of stoste before a kind of carbon fibre precursor is spun |
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| CN111537704A (en) * | 2020-05-20 | 2020-08-14 | 四川大学 | Online measurement device and method for concentration of dissolved oxygen in fuel oil |
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Application publication date: 20170308 |
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