CN1603606A - In-tank fuel purifying treatment apparatus - Google Patents
In-tank fuel purifying treatment apparatus Download PDFInfo
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- CN1603606A CN1603606A CNA2004100833806A CN200410083380A CN1603606A CN 1603606 A CN1603606 A CN 1603606A CN A2004100833806 A CNA2004100833806 A CN A2004100833806A CN 200410083380 A CN200410083380 A CN 200410083380A CN 1603606 A CN1603606 A CN 1603606A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention provides a tank fuel purifier. A construction machine 1 is provided with the tank fuel purifier 10, whereby the fuel in the fuel tank 2 can be circulated, and filtered by a filter 1 to be automatically purified. Therefore, it is not necessary to once empty the fuel storing tank installed in a job site and eliminate foreign matter staying in the interior of the tank. Further, since purification is automated, the cleanliness of fuel can be easily improved in a short time without trouble. Furthermore, the purifier 10 is composed of a particle counter 15, an oil feed pump 14, a filter 12 and a differential pressure sensor 16, which are components not requiring large space, whereby the purifier 10 can be made enough compact and surely installed without any increase in size of the construction machine 1 itself.
Description
Technical field
The present invention relates to a kind of in-tank fuel purifying treatment apparatus (below, sometimes be called for short " treatment device ").
Background technique
,, after utilizing fuel tank to deliver to the scene, temporarily be stored in the fuel storage tanks at the scene of being located in the past, more as required, supplied to the fuel tank of engineering machinery from this storage tank from fuel supply person to the fuel of supplies such as the engineering machinery of using at the construction field (site).In fuel storage tanks so, wish thoroughly to remove the rust that generates in inside etc., developed multiple so removal device and remover for this reason.
In addition, in large ships such as oil tanker etc., though the large tank of a part that constitutes hull is set, but in long navigation, owing in jar, get rusty or sneak into the possibility height of foreign matter, so generally carry large-scale purifying processing device (for example, the spy opens flat 8-310490 communique).
, engineering machinery is worked under the site environment that produces a large amount of sand and dust or dust etc. mostly.Therefore, in being located at the fuel storage tanks at scene like this, sneak into foreign matters such as a large amount of sand and dust or dust sometimes.In addition, also sneak into rust sometimes as the fuel pot of using all the year round of foreign matter.Be mixed with engineering machinery one side of the fuel of foreign matter in supply,, can produce inordinate wear, cause functional fault sometimes the parts of the fuel injection system that constitutes motor because of this foreign matter.
Specifically be, generation fault in the needle roller of the sliding parts that constitutes fuel injection system, instruction piston, two-way valve etc., particularly,, therefore more be easy to generate so problem owing to more critically design each slide member at the fuel-device of the ejecting system that is used for public rail.
Therefore, also consider to utilize above-mentioned removal device to remove the interior foreign matter of storage tank, but under the high environment of the possibility of frequently sneaking into foreign matter, this removal operation not only bothers but also bothersome, also need simultaneously temporarily to empty in the fuel storage tanks, can not carry out fuel supply during this period or replenish etc., more problem is also arranged aspect enforcement.
In addition, be used for the large-scale purifying processing device of boats and ships,, don't say that more lift-launch is in the engineering machinery side since can not be located at job site etc. easily.
Summary of the invention
The object of the invention provide a kind of can be easily and remove foreign matter in the fuel rapidly, and can compact in-tank fuel purifying treatment apparatus.
In-tank fuel purifying treatment apparatus of the present invention is characterized in that: have from the jar of storing fuel send above-mentioned fuel send oil circuit, be located at this filter that send oily recipient's one side of sending of oil circuit, make the fuel of discharging from this filter return above-mentioned jar return the road, be located at above-mentionedly send fuel circulating pump on the oil circuit and particle collector, based on the control mechanism of controlling above-mentioned fuel circulating pump from the signal of this particle collector; This control mechanism, when surpassing specified value based on the cleanliness from the signal of this particle collector, keeping this in-tank fuel purifying treatment apparatus is operating condition, and this in-tank fuel purifying treatment apparatus is stopped.
But so-called " this in-tank fuel purifying treatment apparatus is stopped " referring to the state that does not play a role as in-tank fuel purifying treatment apparatus that forms, for this reason, for example, as long as it is just passable that fuel circulating pump is stopped, and the power supply of particle collector etc. is no matter disconnect or connection.
If adopt above-mentioned formation, by being located at the particle collector that send in the oil circuit, detect the quantity of the foreign matters such as sand that exist in the fuel tank, by control mechanism, drive this in-tank fuel purifying treatment apparatus, until the quantity of foreign matter is dropped to below the specified value, by making fuel cycle, filter with filter, carry out self-purging.
Therefore, be trapped in the inner foreign matter owing in the jar that do not need temporarily to soar, remove, can also self-purging, so can without difficulty ground improve the cleanliness of fuel easily and at short notice.And, owing to constitute,, also can be located at the fuel tank side of engineering machinery etc. so abundant compactness for example, can be located at the fuel storage tanks side of job site etc. by particle collector or fuel circulating pump, parts that the filter equal-volume is little.
In in-tank fuel purifying treatment apparatus of the present invention, preferably: above-mentioned control mechanism, at the state that is no more than specified value based on the cleanliness from the signal of above-mentioned particle collector, continuous several times or continuously under the situation of stipulated time stops this in-tank fuel purifying treatment apparatus.
Here, as particle collector, can adopt stipulated time output regularly at interval according to the mode of the testing signal of cleanliness, in such cases, so-called " continuous several times ", refer to the signal that is no more than specified value and export continuously more than 2 times, so-called " stipulated time continuously ", refer to the signal that is no more than specified value and export the required time continuously.
If adopt above-mentioned formation and since confirm cleanliness repeatedly or continuously the stipulated time good after, this in-tank fuel purifying treatment apparatus is stopped, so can discern certain cleanliness that improves fuel, improve the reliability of treatment device.
In in-tank fuel purifying treatment apparatus of the present invention, preferably will return on the above-mentioned jar oil extraction road other particle collector be set at the remaining fuel that overflows of fuel injection system; Above-mentioned control mechanism when surpassing specified value based on the cleanliness from the signal of above-mentioned other particle collector, makes this in-tank fuel purifying treatment apparatus running.
But, so-called " making this in-tank fuel purifying treatment apparatus running ", opposite with above-mentioned situation, refer to the state that plays a role as in-tank fuel purifying treatment apparatus that forms, surpass under the situation of specified value at cleanliness, beginning not is the in-tank fuel purifying treatment apparatus overall operation.That is, above-mentioned other particle collector, certainly, even, between on-stream periods such as motor, also need to form opening state always at fuel circulating pump or when sending the particle collector of oil circuit side to stop.
Be provided with on the fuel tank of engineering machinery side under the situation of in-tank fuel purifying treatment apparatus, if temporarily carry out the fuel detergenting in the fuel tank, even think and sneak into foreign matter because of certain reason in fuel tank, fuel circulating pump or host grain counter do not turn round yet, and do not purify.In addition, in such cases, can give fuel injection system with the fuel that does not improve cleanliness.
To this, if adopt the formation be provided with above-mentioned other particle collector, because by detect the quantity of overflowing the foreign matter in the fuel with other particle collector, can judge the clean state of the fuel of giving fuel injection system easily, even therefore when giving the fuel that does not improve cleanliness, also can implement cleaningization once more fast, also can prevent to constitute the wearing and tearing etc. of the parts of fuel injection system really.
In addition, in-tank fuel purifying treatment apparatus, also can predict that in advance a jar interior dirty situation utilization manually boots by operator or fuel management person, or prediction jar internal contamination in advance during, automatically start by each stipulated time, but in the in-tank fuel purifying treatment apparatus of this formation, can start the startup that can suppress to do nothing after really by dirt detecting fuel by other particle collector.
At in-tank fuel purifying treatment apparatus of the present invention, preferably have: be crossed on above-mentioned send oil circuit and above-mentioned return the road between, the differential pressure pickup that detects the pressure reduction before and after the above-mentioned filter; Based on signal from this differential pressure pickup, judge under the situation of above-mentioned plugged filter, notify the alarm mechanism of this blocked state.
If adopt this formation since send oil circuit and return the road between differential pressure pickup is set, therefore can judge the stopping state of filter really by relatively actual pressure reduction and predetermined pressure reduction, can understand fully the swap time of filter easily.
In in-tank fuel purifying treatment apparatus of the present invention, preferably has the on-stream indication mechanism of this in-tank fuel purifying treatment apparatus of demonstration.
If adopt this formation, show the on-stream indication mechanism of this treatment device owing to be provided with, so operational situation can come into plain view.Therefore, if in the operator cabin of engineering machinery etc., so indication mechanism is set,,, can grasps at any time and carry the fuel that has improved cleanliness Yi Bian confirm the operational situation of treatment device on one side can carry out the operation of engineering machinery easily.In addition, under situation about not showing for a long time in the running, owing to also can suspect the fault of treatment device itself, therefore fault that can the early detection treatment device, can prevent that the fuel that will pollute in a large number in fault from giving combustion ejection device etc., the inordinate wear of parts also can prevent trouble before it happens.
In in-tank fuel purifying treatment apparatus of the present invention, preferred above-mentioned jar, constitute by the 1st, the 2nd container portions that is interconnected in the bottom, above-mentioned oil sources one side of sending of oil circuit of sending is connected on above-mentioned the 1st container, the above-mentioned place's of returning one side of returning the road is connected on above-mentioned the 2nd container, on above-mentioned the 2nd container, connect the fuel supply road of supplying with above-mentioned fuel from jar.
In in-tank fuel purifying treatment apparatus of the present invention, preferably be equipped on any in engineering machinery, industrial machinery and the industrial vehicle.
If adopt this formation, the fuel that cleanliness is low after sending from the 1st container portions, by through filter, can turn back to the 2nd container portions after improving cleanliness, from the 2nd container portions supply engine etc.Therefore, for example when not in the fuel storage tanks side and when the engineering machinery side is installed treatment device etc., even running engine and treatment device both sides generally can supply with the fuel that improves cleanliness that filters through filter, the more convenient inordinate wear that prevents parts really to motor simultaneously.
In addition, frequent change such as engineering machinery operation field.Therefore, the operator of engineering machinery must be noted that the fuel cleanliness that is arranged in each on-the-spot fuel storage tanks at every turn, becomes burden concerning the operator.
To this, if adopt the in-tank fuel purifying treatment apparatus of claim 7, because this treatment device is arranged on the engineering machinery side, even so accept from changing the fuel that on-the-spot different fuel storage tank is supplied with, also can improve the cleanliness of fuel by the treatment device of itself, not should be noted that the fuel cleanliness in the fuel storage tanks, can alleviate operator's burden.
In addition, so-called engineering machinery for example is excavator, wheel loader, bulldozer, motor-driven grader etc.; So-called industrial machinery for example is engine-driven fixed motor, fixed shredder, fixed soil improvement machine etc.; So-called industrial vehicle is dump car, shredder, soil improvement machine voluntarily voluntarily.Wherein, the present invention is specially adapted to the machinery that disposes under the many rugged environment of sand or dust.
Description of drawings
Fig. 1 is the schematic representation of wanting portion's formation of the engineering machinery of the expression in-tank fuel purifying treatment apparatus that is suitable for the 1st mode of execution of the present invention.
Fig. 2 is the schematic representation of formation of the in-tank fuel purifying treatment apparatus of expression the 1st mode of execution.
Fig. 3 is the flow chart of running of the in-tank fuel purifying treatment apparatus of expression the 1st mode of execution.
Fig. 4 is the schematic representation of wanting portion to constitute of the in-tank fuel purifying treatment apparatus of expression the 2nd mode of execution of the present invention.
Fig. 5 is the flow chart of running of the in-tank fuel purifying treatment apparatus of expression the 2nd mode of execution.
Embodiment
The 1st mode of execution
Below, with reference to accompanying drawing, the 1st mode of execution of the present invention is described.
Fig. 1 is the schematic representation of wanting portion's formation of engineering machinery 1 such as the expression hydraulic shovel that is suitable for the in-tank fuel purifying treatment apparatus 10 of present embodiment, wheel loader, bulldozer, motor-driven grader.
At first, in this project machinery 1, same with general specification, have by supplying with road 3 and supply with the fuel that is stored in the fuel tank 2 to fuel injection system 4, again to the formation of the in-cylinder injection of not shown motor, supplying with road 3, setting gradually from upstream side and set up filter 5, petrolift 6, public rail (common rail) 7.In addition, petrolift 6, comprise from fuel tank 2 extract fuel pressure pump 61, purify the standard filter 62 of the fuel of discharging from pressure pump 61, the high-pressure service pump 63 of the public rail 7 of fuel supply that will discharge from standard filter 62.Symbol 8 among the figure is to overflow the oil extraction road that fuel turns back to fuel tank 2 in that fuel injection system 4 is remaining.
In the fuel tank 2 of engineering machinery 1 so,, refuel as required from being arranged on the not shown fuel storage tanks of job site.
Herein, standard filter 62, irrelevant with the situation of job site, it is the filter that is used for engineering machinery 1 by standard, its performance, in the present embodiment, can be to the cleanliness of 0.5mg/L (promptly with the fuel enhancement of cleanliness 6mg/L (foreign matter that in 1L, contains 6mg), as the fuel of supply engine, require the following cleanliness of 0.5mg/L at least).
In addition, the above-mentioned filter 5 of setting up, be to compare with common scene, be in sand and dust or dust many, in being located at on-the-spot fuel storage tanks, sneak into following time of environment of foreign matter etc. easily, the filter of setting up, its performance in the present embodiment, can be brought up to the fuel that contains the 25mg/L foreign matter the following cleanliness of 6mg/L.In so setting up filter 5, also one is installed the water separating filter device sometimes, sneaks into water in the fuel with separation.
In addition, in the present embodiment, consider that engineering machinery 1 working under the rugged environment very much, promptly, suppose in fuel storage tanks, to sneak into a large amount of foreign matters, in engineering machinery 1, the in-tank fuel purifying treatment apparatus 10 of fuel in effective fuel purifying case 2 is set above 25mg/L.That is, in-tank fuel purifying treatment apparatus 10 does not purify the fuel that is located in the on-the-spot fuel storage tanks in this fuel storage tanks side, and the device of the fuel when purifying in the fuel tank 2 that moves on to engineering machinery 1 from here.Below, describe treatment device 10 in detail.
In Fig. 2, in-tank fuel purifying treatment apparatus 10, formation contains the formation of above-mentioned fuel pot 2, have from this fuel tank 2 send fuel send oil circuit 11, be located at this a plurality of (being 4 in the present embodiment) filter 12 that send oily recipient's one side of sending of oil circuit 11, make that the fuel of discharging from these filters 12 returns fuel tank 2 return road 13.Sending oil circuit 11, the fuel circulating pump 14 that extracts fuel from fuel tank 2 is being set, at the upstream side of this fuel circulating pump 14, particle collector 15 is being set simultaneously.In addition, across fuel circulating pump 14 downstreams of sending oil circuit 11 with return differential pressure pickup 16 is set between the road 13.In addition, other particle collector 24 is set on oil extraction road 8.
As above-mentioned particle collector 15,24, can suitably adopt commercially available instrument, for example can adopt RION corporate system KR60, HIAC/Royco system PC4000, Intechnos Japan system CM20 etc.
From the testing signal of particle collector 15,24 and from the testing signal of differential pressure pickup 16, input to controller (control mechanism) 17.In addition, come the drive control signal of self-controller 17 to export to fuel circulating pump 14.The alarm mechanism 19 that on controller 17, is electrically connected the indication mechanism 18 that constitutes by LCD monitors etc. respectively, constitutes by buzzer or sound generator, warning light etc.In addition, indication mechanism 18 and alarm mechanism 19 are located in the operator cabin of engineering machinery 1, even handle in engineering machinery 1 process the operator, also can confirm its displaying contents or identification alarm content.
In so constituting, when adopting 4 filters 12 (in Fig. 1, as filter set diagram) performance, when the flow by 28L/min makes the 170L fuel cycle of cleanliness 100mg/L, have the ability that about usefulness was improved to the cleanliness of 25mg/L in 20 minutes.But the performance of filter 12 also is not limited to this, the cleanliness of the fuel in the time of can be according to fueling case 2, or the capacity of fuel tank 2 (in the present embodiment, being approximately 500L), cleanliness improve required time etc. and determine.The quantity of filter 12 too.
The driving mechanism of fuel circulating pump 14 is arbitrarily, can be by the oil pressure motor driving that is located on the engineering machinery 1, or be that the motor (electric power is from storage battery, by the supplies such as circulator in the controller) of power supply drives in order to storage battery, or, be situated between and export driving etc. by the motor of power transmitting deice transmission.In either case, in the running of engineering machinery 1 (under the situation of motor, in motor stops also can), also can be used for the drive control signal of self-controller 17 to drive.
Cleanliness is mechanism 21 relatively, has the function that the actual cleanliness C of the fuel that obtains to default cleanliness C1, C2 with based on the testing signal of particle collector 15,24 compares.Default cleanliness C, be from fuel tank 2 to the cleanliness (detected) of setting up the fuel that filter 5 sends by particle collector 15, in the present embodiment, be 25mg/L.Default cleanliness C2 is the cleanliness that overflows fuel (detected by particle collector 24) that is returned by oil extraction road 8, in the present embodiment, is 0.5mg/L.If adopt relatively mechanism 21 of this cleanliness, surpass under the situation of cleanliness C1, C2 at the cleanliness C of reality, it is contaminated to be judged as fuel.On the contrary, if actual cleanliness C is judged as and has fully removed the foreign matter in the fuel at cleanliness C1, below the C2.
Pressure reduction is mechanism 22 relatively, has default pressure differential deltap P1 and the function that compares based on the pressure differential deltap P that the testing signal of differential pressure pickup 16 obtains.Default pressure differential deltap P1 is the value of the use boundary of regulation filter 12, if the obstruction of filter 12 reaches more than it, then is to keep the value that foreign matter is removed function.Adopt relatively mechanism 22 of this pressure reduction, if the actual pressure differential Δ P that send the pressure in the oil circuit 11 and return the pressure in the road 13 below pressure differential deltap P1, the obstruction of filter 12 is so not serious, is judged as filter 12 and can fully keeps foreign matter and remove function.On the contrary,, be judged as filter 12 and cause obstruction, need to change filter 12 if actual pressure differential deltap P surpasses pressure differential deltap P1.
Signal generates mechanism 23, based on the judged result of cleanliness comparison mechanism 21, generates the drive control signal of fuel circulating pump 14.Specifically be, compare in the mechanism 21, surpass cleanliness C1 if judge cleanliness C at cleanliness, then continue to generate the output drive control signal, keeping the driving of fuel circulating pump 14, reach stage below the cleanliness C1 at cleanliness C, generate the drive control signal that also output stops fuel circulating pump 14.In addition, during driving fuel circulating pump 14, generate and output signals, the main information in purifying is presented at indication mechanism 18 to indication mechanism 18.In addition,, can compare the judged result of mechanism 22, generate the signal of exporting to alarm mechanism 19 based on pressure reduction if adopt signal to generate mechanism 23.That is, when judging that pressure differential deltap P surpasses pressure differential deltap P1, generate the output signal of exporting to alarm mechanism 19, make alarm mechanism work, urge the operator to change filter 12.
, the fuel tank 2 that present embodiment adopts as shown in Figure 2, is divided into the 1st container portions 2A and the 2nd container portions 2B, and the bottom side of the 1st container portions 2A and the 2nd container portions 2B is connected by interconnecting part 2C to each other.
The capacity of the 1st container portions 2A is greater than the 2nd container portions 2B.In the bottom of the 1st container portions 2A, connect above-mentioned send oil circuit 11 send oil sources one side, simultaneously with respect to the 2nd container portions 2B, also can carry out fuel feeding (supply).In addition, in the inclined bottom of the 2nd container portions 2B, connect supply source one side of supplying with road 3, in addition, the place's of returning side of returning road 13 and oil extraction road 8 is connected on the 2nd container portions 2B.
If adopt this formation, from the low fuel of the cleanliness of fuel storage tanks supply, at first, by interconnecting part 2C, can be stored in the 1st container portions 2A and the 2nd container portions 2B both sides, after sending into oil circuit 11 from here, filter 12 by treatment device 10, improve cleanliness,, turn back to the 2nd container portions 2B by returning road 13.At this moment, the driving source of treatment device 10 (fuel circulating pump 14) is a motor, and parallel with treatment device 10, under the situation of running engine, a part that turns back to the fuel of the 2nd container portions 2B can pass out to supplies with road 3.
In addition, in the present embodiment, from returning the flow fuel that road 13 is returned, even improve in maximum under the situation of rotation number of motor, also to set than sending into the big mode of flow of supplying with road 13, the contaminated fuel of the 1st container portions 2A side is difficult to by interconnecting part 2C to the 2nd container portions 2B side shifting.In addition, according to difference of flow so, when returning the 2nd container portions 2B, also exist not from supplying with the fuel that road 3 is sent.The fuel of this part by interconnecting part 2C, is transferred to the 1st container portions 2A side, with the unborn fuel mix of the 1st container portions 2A, carries out recirculation.In addition, through after the stipulated time, behind the cleanliness of the whole fuel in substantially improving fuel tank 2, stop fuel circulating pump 14.
Below, according to the running of flowchart text in-tank fuel purifying treatment apparatus 10 shown in Figure 3.
Step (below, step is called for short " S ") starts the motor of engineering machinery 1 at 1: one, and the signal of controller 17 generates mechanism 23 and just starts automatically, generates, the output control signal, drives fuel circulating pump 14.At this moment, particle collector 15,24 and differential pressure pickup 16 also are on-state.In addition, signal generates mechanism 23, makes indication mechanism 18 show the main information of carrying out fuel detergenting.
S2: then, start relatively mechanism 22 of pressure reduction, relatively send oil circuit 11 and return the pressure differential deltap P and the default pressure differential deltap P1 of the reality on 13 on road, judge the stopping state of filter 12.Judge pressure differential deltap P greater than pressure differential deltap P1, under the obstruction of filter 12 situation beyond the mark, entering S3.Judging pressure differential deltap P less than pressure differential deltap P1, the obstruction of filter 12 so under the serious situation, does not enter S4.
S3: stopping up under the situation beyond the mark, utilizing signal to generate mechanism 23,, making its work, urging the operator to change filter 12 to alarm mechanism 19 output signals.
S4:, start cleanliness relatively mechanism 21, the cleanliness C of the fuel of comparison loop and default cleanliness C1 at this.Judging cleanliness C greater than cleanliness C1, the quantity of the foreign matter of sneaking in the per unit volume turns back to S2 during greater than specified value, continues the circulation of fuel, improves cleanliness.Relative therewith, as the cleanliness of the fuel in the fuel tank 2 original when good or the circulation by fuel when having improved cleanliness, when judging that cleanliness C is less than cleanliness C1, enter S5.
S5: in S4, in the cleanliness of the fuel in judgement has improved fuel tank 2, controller 17 confirms whether the kilter of cleanliness continues the stipulated time, judges whether certain improvement.That is, the timer of inside reach the time during repeat S4-S5, confirm that cleanliness C is less than cleanliness C1 at the appointed time.Then, enter S6.
S6: in S5, when judgement had improved the cleanliness of fuel really, signal generated mechanism 23 to fuel circulating pump 14 output drive control signal, and fuel circulating pump 14 is stopped.Thus, particle collector 15 differential pressure sensors 16 also disconnect.
S7: in addition, behind the fuel in having purified fuel tank 2, utilize other particle collector 24, begin to detect the foreign matter that overflows fuel, during engine running, monitor the cleanliness that overflows fuel., surpass under the situation of default cleanliness C2 herein,, judge that cleanliness worsens, return S1, start fuel circulating pump 14 etc. once more because of certain reason has been sneaked into foreign matter in fuel tank at the cleanliness C of reality.
More than, when the fuel that enters fuel tank 2 is contaminated, utilize treatment device 10 to improve its cleanliness automatically, even pusher side is started in fuel supply, do not worry producing inordinate wear at fuel injection system 4 yet.
In addition, for fuel tank 2, in the time of the contaminated fuel of fuel storage tanks supply that is provided with from the scene once more, because when this supply, the motor of general temporary transient suspension of engineering work machinery 1, thus if ato unit once more, the operation after the beginning fuel make up, repeat above processing too, carry out the improvement of cleanliness again.
If adopt so present embodiment, has following effect.
(1) promptly, in-tank fuel purifying treatment apparatus 10 is set on engineering machinery 1, because by making the fuel cycle in the fuel tank 2, filter with filter 12, carry out self-purging, be not located at on-the-spot fuel storage tanks, remove and be trapped in inner foreign matter so do not need temporarily to soar.In addition, because automation purifies, therefore can without difficulty ground improve the cleanliness of fuel easily and at short notice.And treatment device 10 owing to be made of particle collector 15 or fuel circulating pump 14, filter 12, parts that differential pressure pickup 16 equal-volumes are little, so can make treatment device 10 abundant compactnesss, can not make engineering machinery 1 maximization dungeon own set firmly and put.
(2) in addition, controller 17, shown in the S5 of Fig. 3 because in the lasting stipulated time, confirm that cleanliness is good after, stop fuel circulating pump 14, so can discern certain cleanliness that improves fuel, the reliability of raising treatment device 10.
(3) and, behind the cleanliness in improving fuel tank 2, because the quantity of overflowing the interior foreign matter of fuel with 24 detections of other particle collector, so can judge the purification state of the fuel of sending into fuel injection system 4 easily.Therefore, behind the cleanliness of the fuel in temporarily improving fuel tank 2, for example, even under the state of the lid that takes off oil filler,, in fuel tank 2, sneak into a large amount of foreign matters during this period because of long-time running engineering machinery 1, under the situation of the cleanliness variation of fuel, also can be based on the testing signal of particle collector 24, implement to purify once again fast, can prevent to constitute the wearing and tearing etc. of the parts of fuel injection system 4 really.
In addition, by other particle collector 24 is set, detect with particle collector 24 fuel genuine contaminated after, also can make in-tank fuel purifying treatment apparatus 10 running, in the case since with the engine start interlock, not necessarily need to drive fuel circulating pump 14 etc., can simplify control.
(4) in treatment device 10, owing to differential pressure pickup 16 is set sending oil circuit 11 and return 13 on road, therefore can judge the stopping state of filter 12 really by the comparison of pressure differential deltap P and pressure differential deltap P1, can discern the exchange period of filter 12 easily.
(5) if adopt treatment device 10, because the indication mechanism 18 in the purification that shows fuel is set, so can be easily while the operation of carrying out engineering machinery 1, confirm the operational situation of treatment device 10, can discern at any time and carry the fuel that has improved cleanliness.In addition, under situation about not showing for a long time in the running, owing to also can cause the fault of doubting treatment device 10 itself, therefore fault that can early detection treatment device 10, can prevent that the fuel that will pollute in a large number in fault from giving combustion ejection device 4, the inordinate wear of parts can prevent trouble before it happens.
(6) because fuel tank 2 is distinguished into the 1st container portions 2A and the 2nd container portions 2B, even so while running engine and treatment device 10 both sides, also can be general by the fuel that improves cleanliness by filter 12 to the motor supply, can prevent the inordinate wear of parts more really.
(7) owing to treatment device 10 is not located at on-the-spot fuel storage tanks side, and be located at the engineering machinery side, even so accept from changing the fuel that on-the-spot different fuel storage tank is supplied with, also can improve the cleanliness of fuel by the treatment device 10 of itself, not should be noted that the fuel cleanliness in the fuel storage tanks, can alleviate operator's burden.
The 2nd mode of execution
Fig. 4 is the schematic representation of wanting portion to constitute of the in-tank fuel purifying treatment apparatus 10 of expression the 2nd mode of execution of the present invention.
In above-mentioned the 1st mode of execution, fuel tank 2 is distinguished into the 1st container portions 2A and the 2nd container portions 2B, but in the present embodiment, in the lower side of common fuel tank 2 secondary fuel tank 30 is set, on this pair fuel tank 30, connect and supply with road 3.
In addition,, carry out handover operation, switch to fuel to the situation of particle collector 15 (Fig. 2) side flow with to the situation of secondary fuel tank 30 side flow according to the switching signal of controller 17 by switching valve 31 being set on the oil circuit 11 sending of being connected with fuel tank 2.
In addition, fuel, is not undertaken by pump etc. to the flowing of secondary fuel tank 30 from fuel tank 2, utilizes whereabouts naturally of head pressure.Other formation and the 1st mode of execution are roughly the same.
The capacity of secondary fuel tank 30 comprises the float 32 with limit switch less than fuel tank 2 in inside.From this float 32, when when fuel is upper limit level (illustrated state), reaching, respectively to the different signal of controller 17 outputs to threshold level (among the figure) by two point dotted line diagram.In addition, at secondary fuel tank 30, the capacity of the fuel of threshold level, according to the fuel (trunkful state) that purifies main fuel tank 2 all the required times decide, at this moment between in, even running engine to greatest extent also can be set in the degree of not wasting fully.
In present embodiment so, the capacity level of the fuel in secondary fuel tank 30 reaches down in limited time, the fuel in the stipulated time fuel purifying case 2 at interval, therebetween, and at switching valve 31, can be from the fuel of fuel tank 2 to particle collector 15 side flow.In addition, when purifying end, switch switching valve, improve the fuel tank 2 interior fuel of cleanliness and send into secondary fuel tank 30, be stored to upper limit level.Therefore, after fuel in secondary fuel tank 30 reaches lower limit, in during the cleanliness that improves the fuel in the fuel tank 2, fuel is not sent in the secondary fuel tank 30, not use the mode of the fuel in the secondary fuel tank 30 during this period, be set in the capacity of above-mentioned threshold level.
Below, the flow chart with reference to shown in Figure 5 illustrates the running of the in-tank fuel purifying treatment apparatus 10 in the present embodiment.
S1: one starts the motor of engineering machinery 1, and at first controller 17 makes the fuel in the fuel tank 2 flow to particle collector 15 just to switching valve 31 output switching signals.At engine start constantly, under situation about having switched, keep its original state.
S2: then, controller 17 monitors the signal output of secondary fuel tank 32, and whether the fuel quantity that detects in the secondary fuel tank 30 reaches lower limit.That is, with the fuel driven motor that reaches lower limit.
S3: in S2, if fuel quantity reaches lower limit, the signal of controller 17 generates mechanism 23 (Fig. 2) and starts, and generates, exports control signal, drives fuel circulating pump 14 (Fig. 2).At this moment, same with the 1st mode of execution, particle collector 15 and differential pressure pickup 16 also are on-state.In addition, signal generates mechanism 23, makes indication mechanism 18 show the main information of carrying out fuel detergenting.
And, before following S4～S8, identical with the S2～S6 (Fig. 3) of the 1st mode of execution.
S9: in S8,, stop fuel circulating pump 14, switch switching valve 31 then, the fuel that improves cleanliness is moved into secondary fuel tank 30 if the purification of the fuel in the fuel tank 2 finishes.
S10: the bunkering in secondary fuel tank 30 proceeds to fuel and reaches the upper limit.That is, if from the signal of secondary fuel tank 32 to controller 17 input upper limit sides, turn back to S1, switching valve switches to particle collector 15 sides once again, stops the storage to secondary fuel tank 32.
If adopt so present embodiment, by having the formation identical, can obtain the effect of above-mentioned (1), (2), (4)～(7) equally with the 1st mode of execution, in addition, also have following effect.
(8) promptly, in the present embodiment, the secondary fuel tank 30 that setting and main fuel tank 2 separate fully, after the cleanliness of the fuel in fuel tank 2 improves fully, because its fuel can move on to secondary fuel tank 30, so to starting pusher side, generally can supply with the fuel of the high-quality of improving cleanliness from secondary fuel tank 30, can prevent the inordinate wear of fuel injection system 4 (Fig. 1) further really.
(9) in addition, case 2 acts as a fuel, owing to can directly use by standard and be installed in fuel tank on the original engineering machinery 1, if therefore utilize the interior clearance space of engine hood of engineering machinery 1, secondary fuel tank 30 or other component parts are installed, then treatment device 10 can be installed on existing engineering machinery 1 easily, and can cut down the expense that treatment device 10 is installed.
In addition, the present invention is not limited to above-mentioned mode of execution, also comprises arriving other formations of purpose of the present invention, and variation shown below etc. is also contained in the present invention.
For example, in the respective embodiments described above, in-tank fuel purifying treatment apparatus 10 is located on the engineering machinery 1, but also is not limited to this, also can be located on the fuel storage tanks that is arranged on the job site.
In the 1st mode of execution, fuel tank 2 is divided into the 1st container portions 2A and the 2nd container portions 2B that is interconnected, can be to starting pusher side to supply with the more fuel of high-quality; In the 2nd mode of execution, by the secondary fuel tank 30 different with fuel tank 2 is set, be to starting pusher side only to supply with the formation of the fuel that improves cleanliness fully, even but the fuel tank 2 that is only adopting the 2nd mode of execution, when constituting treatment device 10, be also contained among the present invention.
Wherein, under situation so, in order not supply with the fuel that pollutes to motor, preferably: for example, with the electric drive fuel circulating pump 14 of storage battery, or with outside commercial power driving etc., in the mode of the treatment device 10 that can turn round during stopping at motor, before ato unit, improve the fuel cleanliness in the fuel tank 2 in advance.
In the 1st mode of execution, particle collector 24 is set, but same formation also can be used for the 2nd mode of execution on oil extraction road 8, so, can further prevent in the wearing and tearing of fuel injection system 4 etc.
Certainly, the particle collector 24 on oil extraction road 8, optional in the present invention formation can be set as required.
In the 1st, the 2nd mode of execution, pass through ato unit, for example, can controller 17 be started automatically with start key switch interlock, and running fuel circulating pump 14 etc., but also can be provided with and the independent switch of start key switch, by operating this switch, can with the irrelevant ground of the startup of motor, regularly to start treatment device 10 arbitrarily, so also can carry out the purification of fuel.
In above record, show the formation of implementing the best of the present invention, method etc., but the present invention also is not limited to this.Promptly, the present invention, illustrate and illustrated main specific implementations especially, under the situation that does not break away from technological thought of the present invention and purpose scope, with respect to above-described mode of execution, in shape, quantity, other detailed formation directions, those of ordinary skills also can increase numerous variations.
Therefore, limit the record of above-mentioned disclosed shape, quantity etc., the just record of example, in order that easy to understand the present invention, owing to be not to limit content of the present invention, so the record of the title of the parts outside removal partly limits with these shapes, quantity etc. or all limits is also contained among the present invention.
Claims (7)
1. an in-tank fuel purifying treatment apparatus (10) is characterized in that:
Have:
From the jar (2) of storing fuel send above-mentioned fuel send oil circuit (11),
Be located at this filter (12) that send oily recipient's one side of sending of oil circuit (11),
Make the fuel of sending from this filter return above-mentioned jar (2) return road (13),
Be located at above-mentioned send fuel circulating pump (14) on the oil circuit (11) and particle collector (15),
Based on the control mechanism (17) of controlling above-mentioned fuel circulating pump (14) from the signal of this particle collector (15);
This control mechanism (17), when surpassing specified value based on cleanliness from the signal of above-mentioned particle collector (15), keep this in-tank fuel purifying treatment apparatus (10) to be operating condition, when being no more than specified value, this in-tank fuel purifying treatment apparatus (10) is stopped.
2. in-tank fuel purifying treatment apparatus as claimed in claim 1 (10) is characterized in that:
Above-mentioned control mechanism (17) is being no more than the state continuous several times of specified value or continuously under the situation of stipulated time, this in-tank fuel purifying treatment apparatus (10) is being stopped based on the cleanliness from the signal of above-mentioned particle collector (15).
3. in-tank fuel purifying treatment apparatus as claimed in claim 1 or 2 (10) is characterized in that:
To return on the oil extraction road (8) of above-mentioned jar (2) other particle collector (24) be set at the remaining fuel that overflows of fuel injection system (4);
Above-mentioned control mechanism (17) when surpassing specified value based on the cleanliness from the signal of above-mentioned other particle collector (24), makes this in-tank fuel purifying treatment apparatus (10) running.
4. in-tank fuel purifying treatment apparatus as claimed in claim 1 or 2 (10) is characterized in that having:
Across above-mentioned send oil circuit (11) and above-mentioned return road (13) between differential pressure pickup (16) that be provided with, that be used to detect the pressure difference before and after the above-mentioned filter (12);
Based on from the signal of this differential pressure pickup and be judged as under the situation of above-mentioned plugged filter, notify the alarm mechanism (19) of this blocked state.
5. in-tank fuel purifying treatment apparatus as claimed in claim 1 or 2 (10) is characterized in that having:
Show that this in-tank fuel purifying treatment apparatus (10) is the indication mechanism (18) in the running.
6. in-tank fuel purifying treatment apparatus as claimed in claim 1 or 2 (10) is characterized in that:
Above-mentioned jar (2) are made of the 1st, the 2nd container portions (2A, 2B) that is interconnected in the bottom;
Above-mentioned oil sources one side of sending of oil circuit (11) of sending is connected on above-mentioned the 1st container (2A);
The above-mentioned place's of returning one side of returning road (13) is connected on above-mentioned the 2nd container (2B);
Go up the fuel supply road (3) that connection is used for supplying with from jar (2) above-mentioned fuel at above-mentioned the 2nd container (2B).
7. in-tank fuel purifying treatment apparatus as claimed in claim 1 or 2 (10) is characterized in that:
Can be equipped on any in engineering machinery (1), industrial machinery and the industrial vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003343047 | 2003-10-01 | ||
| JP2003343047A JP2005104392A (en) | 2003-10-01 | 2003-10-01 | Tank fuel purifier |
| JP343047/2003 | 2003-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603606A true CN1603606A (en) | 2005-04-06 |
| CN100476192C CN100476192C (en) | 2009-04-08 |
Family
ID=34537129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100833806A Expired - Fee Related CN100476192C (en) | 2003-10-01 | 2004-10-08 | In-tank fuel purifying treatment apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005104392A (en) |
| CN (1) | CN100476192C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008707A (en) * | 2013-02-27 | 2015-10-28 | 日产自动车轻型卡车株式会社 | Fuel filter diagnostic device and diagnostic method |
| CN106368834A (en) * | 2016-08-30 | 2017-02-01 | 潍柴动力股份有限公司 | Fuel system monitoring method and device, fuel system and engine |
| CN106837633A (en) * | 2015-12-07 | 2017-06-13 | 卡特彼勒公司 | Additional fuel filtering on demand |
| CN107110080A (en) * | 2014-10-28 | 2017-08-29 | Mtu 腓特烈港有限责任公司 | The integrated storage tank purifier of motor |
| CN108252804A (en) * | 2016-12-29 | 2018-07-06 | 阿里巴巴集团控股有限公司 | The control method and device of fuel filter, the control method and device of on-line maintenance |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4585502B2 (en) * | 2006-11-10 | 2010-11-24 | 三菱重工業株式会社 | Fuel injection device |
| JP5205105B2 (en) * | 2008-03-31 | 2013-06-05 | 株式会社小松製作所 | Fuel contamination degree determination system and fuel contamination degree determination device |
| JP5093016B2 (en) * | 2008-09-17 | 2012-12-05 | コベルコ建機株式会社 | Fuel supply device |
| SE535284C2 (en) | 2010-01-25 | 2012-06-12 | Bt Products Ab | Method for cleaning hydraulic fluid, computer program product, control unit and industrial truck |
| JP5500205B2 (en) * | 2012-05-30 | 2014-05-21 | コベルコクレーン株式会社 | Fuel supply / discharge mechanism of traveling crane |
| JP5913240B2 (en) * | 2013-09-12 | 2016-04-27 | 日立建機株式会社 | Construction equipment fuel filter clogging detection device |
| JP7242043B2 (en) * | 2019-05-07 | 2023-03-20 | 株式会社ビー・テック | Liquid fuel supply system and liquid fuel supply method |
| CN112824671B (en) * | 2019-11-20 | 2023-03-21 | 上海梅山钢铁股份有限公司 | Environment-friendly fuel oil circulating and purifying device for locomotive |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5663846U (en) * | 1979-10-20 | 1981-05-29 | ||
| JPS62170115U (en) * | 1986-04-17 | 1987-10-28 | ||
| JPH07284743A (en) * | 1994-04-15 | 1995-10-31 | Mitsubishi Heavy Ind Ltd | Oil flashing device of oil pressure pipeline |
-
2003
- 2003-10-01 JP JP2003343047A patent/JP2005104392A/en active Pending
-
2004
- 2004-10-08 CN CNB2004100833806A patent/CN100476192C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008707A (en) * | 2013-02-27 | 2015-10-28 | 日产自动车轻型卡车株式会社 | Fuel filter diagnostic device and diagnostic method |
| CN107110080A (en) * | 2014-10-28 | 2017-08-29 | Mtu 腓特烈港有限责任公司 | The integrated storage tank purifier of motor |
| CN106837633A (en) * | 2015-12-07 | 2017-06-13 | 卡特彼勒公司 | Additional fuel filtering on demand |
| CN106368834A (en) * | 2016-08-30 | 2017-02-01 | 潍柴动力股份有限公司 | Fuel system monitoring method and device, fuel system and engine |
| CN106368834B (en) * | 2016-08-30 | 2019-07-05 | 潍柴动力股份有限公司 | Monitor method and device, fuel system and the engine of fuel system |
| CN108252804A (en) * | 2016-12-29 | 2018-07-06 | 阿里巴巴集团控股有限公司 | The control method and device of fuel filter, the control method and device of on-line maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005104392A (en) | 2005-04-21 |
| CN100476192C (en) | 2009-04-08 |
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