CN108843473A - More check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation in advance - Google Patents
More check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation in advance Download PDFInfo
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- CN108843473A CN108843473A CN201810742450.6A CN201810742450A CN108843473A CN 108843473 A CN108843473 A CN 108843473A CN 201810742450 A CN201810742450 A CN 201810742450A CN 108843473 A CN108843473 A CN 108843473A
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- supply chamber
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- 238000004134 energy conservation Methods 0.000 title claims abstract description 14
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 150
- 239000002828 fuel tank Substances 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 108
- 239000000295 fuel oil Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000145637 Lepturus Species 0.000 description 2
- 241001494479 Pecora Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/043—Arrangements for driving reciprocating piston-type pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a kind of adaptive shift to an earlier date of more check valve combinations mutually to open the reciprocal fueller of energy conservation, including fueller and electric control system, the fueller include fuel tank, filter, reciprocal oil feed pump and electric-controlled fuel injector；The reciprocal oil feed pump is made of piston rod, piston and fuel supply chamber, and the fuel supply chamber is divided into left fuel supply chamber A and right fuel supply chamber B by the piston；It is provided with oil supply loop ac on the left fuel supply chamber A, oil supply loop bd is set on the right fuel supply chamber B, the lower end of two oil supply loops connects the fuel tank, and upper end connects voltage-stablizer, and the right end of the voltage-stablizer is provided with excess-flow valve and the electric-controlled fuel injector；The excess-flow valve and the electric-controlled fuel injector pass through line connecting controller；The configuration of the present invention is simple, energy conservation is reliable, it can be achieved that adaptive mutually open function in advance, meets the needs of engine various working is to fuel delivery, and with good economic efficiency, has a wide range of application.
Description
Technical field
The present invention relates to a kind of fuellers of engine, and in particular to a kind of more check valve combinations are adaptive mutually to open in advance
The reciprocal fueller of energy conservation.
Background technique
In conventional engines fueller, when engine crankshaft is with certain revolving speed continuous rotation, is engaged and driven by gear
Dynamic fuel injection camshaft continuous rotation, to filter being sucked out in fuel from fuel tank through cleaner, injection pump pressurization will be clear
The clean fuel oil with elevated pressures is transported to fuel injector, is directly injected to engine with certain injection pressure and injection rate
In cylinder；The extra fuel oil of injection pump conveying flows back to fuel tank through oil return pipe；This fueller due to fuel injection camshaft according to
It is driven by engine crankshaft, therefore the supply capability of injection pump is influenced very big, fuel feeding frequency and oil spout frequency by engine speed
It mismatches, causes the high pressure fuel between injection pump and fuel injector in oil pipe to fluctuate big, and its fuel feeding is convex by injection pump
The rotary motion of wheel shaft is converted to the linear motion of pump oil plunger, and fuel feeding efficiency is lower.
By the retrieval discovery to existing technical literature and patent, application No. is 201510056019.2 patents of invention
" a kind of self-suction hydraulic free piston linear engine ", the self-suction hydraulic free piston linear engine include：Cylinder block,
Piston component, low pressure accumulator, high pressure accumulator, pressure oil tank, pneumatic control valve and fuel injector, wherein piston component includes gas
The cylinder piston, pump piston and compression piston；Since the invention is multiple mainly for existing hydraulic free-piston linear motor structure
It is miscellaneous, propose without the deficiencies of self-suction function, be mainly characterized by that there is " self-suction function ", i.e., generated using the high-speed mobile of piston
Pressure difference oil liquid is sucked into pump chamber, to save individual oil feed pump；But pump piston passes through connecting cylinder and cylinder in the invention
Piston coaxial is affixed, and compression piston is located inside pump piston, coaxially affixed with cylinder piston by connecting column.
Firstly, cylinder piston carries out straight line between top dead centre and lower dead center with certain speed when the engine operation
Move back and forth, due to pump piston, compression piston with cylinder piston it is coaxially affixed, when the timing of revolving speed one of engine, gas
The movement velocity of the cylinder piston is also certain, and the movement velocity of pump piston and compression piston is certain（It is equal to the movement of cylinder piston
Speed）, cannot automatic adjusument pump piston, compression piston according to actual needs movement velocity；And pump piston, compression piston
Movement travel be also it is certain, can not automatic adjusument movement travel as needed.
Secondly, needing two low pressure accumulator, high pressure accumulator accumulators in the engine working process, function is complicated；
In first stroke, after the position of pump piston is more than low pressure hydraulic fluid port, the low pressure oil liquid in low pressure accumulator passes through low pressure inlet valve
Into pump chamber, in the second stroke, after pump piston closes low pressure hydraulic fluid port, the oil liquid in pump chamber is passed through high pressure delivery valve by pump piston
It is pressed into high pressure accumulator, working efficiency is low.Importantly, when leading to charge oil pressure raising or oil spout extremely due to certain failures
When device Traffic Anomaly is bigger than normal, which does not have safety protection function, fuel feeding safety
Property is lower.
Summary of the invention
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide a kind of more check valves combination from
The reciprocal fueller of energy conservation is mutually opened in adaptation in advance, and structure is simple, adjustment control method is simple, Fuel injection system is safe and reliable, and
Fuel feeding demand can be adjusted according to revolving speed, the load self-adapting of engine.
The present invention is adopted the technical scheme that in order to solve the technical problem：A kind of more check valve combinations are adaptive mutually to open in advance
The reciprocal fueller of energy conservation, including fueller and electric control system, the fueller includes fuel tank, filter, reciprocal
Oil feed pump and electric-controlled fuel injector；The reciprocal oil feed pump is made of piston rod, piston and fuel supply chamber, and the fuel supply chamber passes through described
Piston is divided into left fuel supply chamber A and right fuel supply chamber B；Oil supply loop ac is provided on the left fuel supply chamber A, on the right fuel supply chamber B
Oil supply loop bd is set, and the lower end of two oil supply loops connects the fuel tank, and upper end connects voltage-stablizer, the right end of the voltage-stablizer
It is provided with excess-flow valve and the electric-controlled fuel injector；The excess-flow valve and the electric-controlled fuel injector pass through connection control
Device processed.
It is provided on filter A, check valve A and check valve B, the oil supply loop bd and is provided on the oil supply loop ac
Filter B, check valve C and check valve D；The upper end of the fuel tank is provided with left end oil outlet a and right end oil outlet b, described steady
The lower end of depressor is provided with left end oil inlet c and right end oil inlet d；The right end of the voltage-stablizer is provided with oil outlet and connection flow
The oil inlet of amount limitation valve, the oil inlet of the oil outlet connection electric-controlled fuel injector of excess-flow valve, the oil outlet of electric-controlled fuel injector
Connect cylinder.
Two oil supply loops connection vertical and internal with the reciprocal oil feed pump, in the oil supply loop ac：It is described
The upper end of left end oil outlet a be sequentially connected the filter A, the check valve A, the left fuel supply chamber A, the check valve B and
The left end oil inlet c；In the oil supply loop bd：The upper end of the right end oil outlet b is sequentially connected the filter B, institute
State check valve C, the right fuel supply chamber B, the check valve D and the right end oil inlet d.
The left end of the piston rod is provided with straight line electric drive, the right end connection speed sensing of the straight line electric drive
Device and displacement sensor, the left upper end of the left fuel supply chamber A are provided with pressure sensor A, and the upper right side of the right fuel supply chamber B is set
It is equipped with pressure sensor B；The lower end of the voltage-stablizer is provided with pressure sensor C；The straight line electric drive, the speed pass
Sensor, institute's displacement sensors, the pressure sensor, the check valve B, the check valve D, the excess-flow valve and institute
It states electric-controlled fuel injector and connects and composes electric control system with the controller.
Each section element of the fueller is connected by oil pipe, and the electric control system is connected by control route
It connects；The movement velocity of the piston is obtained by the movement velocity that the velocity sensor measures the piston rod, the piston
Moving displacement obtained by the displacement of piston rod described in the displacement sensor.
The beneficial effects of the invention are as follows：The reciprocal fuel feeding of energy conservation can be achieved in the present invention, has always during straight reciprocating motion
For one fuel supply chamber in fuel feeding, fuel feeding is high-efficient, and delivery stroke, delivery rate can be according to engine running speeds, load
Automatic adjusument, fuel feeding frequency, fuel feeding oil mass and oil spout frequency, oil spout oil mass match, therefore do not have oil return, avoid tradition
Fuel tank will be flowed back to by the high pressure fuel of oil pump pressurization in fueller, avoids the waste of fuel feeding energy.
The present invention can be achieved adaptive shift to an earlier date and mutually open function, and it is only big in fuel pressure to avoid valve in traditional fueller
It could be opened in the spring force of valve, save the pressure energy of fuel oil, avoided valve from opening fuel feeding negative work caused by lag, improve confession
Oily economy, while reducing fuel feeding lag, improve the fuel feeding response time.
The present invention has 3 grades and gradually triggers measure, solves since failure causes voltage-stablizer internal fuel pressure moment anxious
Play increases, and Fuel injection system is safe and reliable.Meanwhile when electric-controlled fuel injector breaks down, excess-flow valve can cut off fuel feeding, prevent
The high pressure fuel of big flow sprays into engine and causes the accident and fuel oil waste.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention will be further explained in the following with reference to the drawings and specific embodiments：
Referring to Fig. 1, in figure, 1- fuel tank, 2- filter, 3- check valve, the reciprocal oil feed pump of 4-, 5- piston rod, 6- piston, 7- straight line
Electric drive, 8- controller, 9- voltage-stablizer, 10- excess-flow valve, 11- electric-controlled fuel injector, 12- velocity sensor, 13- displacement
Sensor, 14- pressure sensor, 15- fuel supply chamber, arrow show fuel flow direction in figure, and dotted line is control route.
Embodiment：The combination of more check valves is adaptive mutually to open the reciprocal fueller of energy conservation in advance, including fueller and electrical
Control system, fueller include fuel tank 1, filter 2, reciprocal oil feed pump 4 and electric-controlled fuel injector 11；Reciprocal oil feed pump 4 is by living
Stopper rod 5, piston 6 and fuel supply chamber 15 form, and fuel supply chamber 15 is divided by piston 6 for left fuel supply chamber 15A and right fuel supply chamber 15B；Left confession
It is provided with oil supply loop ac on oil pocket 15A, oil supply loop bd, the lower end connection of two oil supply loops are set on right fuel supply chamber 15B
Fuel tank 1, upper end connect voltage-stablizer 9, and the right end of voltage-stablizer 9 is provided with excess-flow valve 10 and electric-controlled fuel injector 11；Flow restriction
Valve 10 and electric-controlled fuel injector 11 pass through line connecting controller 8.
It is provided with filter 2A, check valve 3A and check valve 3B on oil supply loop ac, is provided with filtering on oil supply loop bd
Device 2B, check valve 3C and check valve 3D；The upper end of fuel tank 1 is provided with left end oil outlet a and right end oil outlet b, under voltage-stablizer 9
End is provided with left end oil inlet c and right end oil inlet d；The right end of voltage-stablizer 9 is provided with oil outlet and connects excess-flow valve 10
Oil inlet, the oil inlet of the oil outlet connection electric-controlled fuel injector 11 of excess-flow valve 10, the oil outlet of electric-controlled fuel injector 11 connects
Connect cylinder.
Two oil supply loops connection vertical and internal with reciprocal oil feed pump 4, in oil supply loop ac：Left end oil outlet a's is upper
End is sequentially connected filter 2A, check valve 3A, left fuel supply chamber 15A, check valve 3B and left end oil inlet c；In oil supply loop bd：It is right
The upper end for bringing out hydraulic fluid port b is sequentially connected filter 2B, check valve 3C, right fuel supply chamber 15B, check valve 3D and right end oil inlet d.
The left end of piston rod 5 is provided with straight line electric drive 7, the right end connection speed sensor 12 of straight line electric drive 7
With displacement sensor 13, the left upper end of left fuel supply chamber 15A is provided with pressure sensor 14A, the upper right side setting of right fuel supply chamber 15B
There is pressure sensor 14B；The lower end of voltage-stablizer 9 is provided with pressure sensor 14C；Straight line electric drive 7, velocity sensor 12,
Displacement sensor 13, pressure sensor 14, check valve 3B, check valve 3D, excess-flow valve 10 and electric-controlled fuel injector 11 with control
Device 8 processed connects and composes electric control system.
Each section element of fueller is connected by oil pipe, and electric control system passes through control connection；Piston 6
Movement velocity is obtained by the movement velocity that velocity sensor 12 measures piston rod 5, and the moving displacement of piston 6 passes through displacement sensing
The displacement that device 13 measures piston rod 5 obtains.
Working principle：The full displacement of 1 high speed of operating condition moves from left to right：When engine work, reciprocal oil feed pump 4 into
The reciprocal fuel feeding of row normal straight；Straight line electric drive 7 drives piston rod 5 when moving from left to right, piston rod 5 push piston 6 to
Right movement, the seal chamber volume of the left fuel supply chamber 15A of reciprocal oil feed pump 4 becomes larger, pressure reduction, vacuum is generated, in atmospheric pressure
Under effect, left end oil outlet a, filter 2A, check valve 3A sucking of the fuel oil through fuel tank 1 in fuel tank 1, into left fuel supply chamber
Inside 15A, an oil-absorbing process is completed；Meanwhile piston 6 moves right, the seal chamber of the right fuel supply chamber 15B of reciprocal oil feed pump 4
Volume becomes smaller, and the fuel oil inside right fuel supply chamber 15B is compressed, and fuel pressure increases, and fuel oil passes through check valve 4D, voltage-stablizer 9
Right end oil inlet d enter inside voltage-stablizer 9, complete a pressure oil process.
The full displacement right-to-left movement of 2 high speed of operating condition：It is living when straight line electric drive 7 drives piston rod 5 to move from right to left
Stopper rod 5 pulls piston 6 to move downward, and the seal chamber volume of the right fuel supply chamber 15B of reciprocal oil feed pump 4 becomes larger, pressure reduction, generates
Vacuum, under atmospheric pressure, right end oil outlet b, filter 2B, check valve 3C of the fuel oil through fuel tank 1 in fuel tank 1 are inhaled
Enter, into inside right fuel supply chamber 15B, completes an oil-absorbing process；Meanwhile piston 6 moves downward, the left confession of reciprocal oil feed pump 4
The seal chamber volume of oil pocket 15A becomes smaller, and the fuel oil inside left fuel supply chamber 15A is compressed, and fuel pressure increases, and fuel oil is by single
It is entered inside voltage-stablizer 9 to the left end oil inlet c of valve 3B, voltage-stablizer 9, completes a pressure oil process.
Operating condition 1 and operating condition 2 are repeated, reciprocal oil feed pump 4 carries out normal fuel injection.
Function is mutually opened in advance：Check valve 3D connect interlocking, check valve 3B and pressure sensor 14B with pressure sensor 14A
Connection interlocking；When piston 6 moves right, the seal chamber volume of the left fuel supply chamber 15A of reciprocal oil feed pump 4 becomes larger, pressure sensing
Device 14A measures the reduction of the fuel pressure in left fuel supply chamber 15A, issues open signal immediately and check valve 3D, check valve 3D is given to mention
Preceding unlatching, the fuel oil in right fuel supply chamber 15B are advanced directly into the right end oil inlet d of voltage-stablizer 9 by piston 6；When piston 6 is transported to the left
When dynamic, the seal chamber volume of the right fuel supply chamber 15B of reciprocal oil feed pump 4 becomes larger, and pressure sensor 14B measures right fuel supply chamber 15B
Interior fuel pressure reduces, and issues open signal immediately and check valve 3B, check valve 3B is given to open in advance, in left fuel supply chamber 15A
Fuel oil is advanced directly into the left end oil inlet c of voltage-stablizer 9 by piston 6；This function avoids traditional check valve only in fuel oil pressure
Power could open when being greater than the spring force of check valve, save the pressure energy of fuel oil, avoid fuel feeding negative work caused by opening lag,
Fuel feeding economy is improved, while improving the fuel feeding response time.
The small oil mass operating condition of 3 high speed of operating condition：When engine is in high speed side crops industry or the empty load working condition of high speed, the combustion that needs
Oil mass is smaller, but fuel feeding frequency is higher, and reciprocal oil feed pump 4 enters the small oil mass operating condition of high speed, at this time the fuel feeding frequency of reciprocal oil feed pump 4
Rate and the oil spout frequency of electric-controlled fuel injector 11 match, and the moving displacement of piston 6 reduces；Controller 8, which issues, reduces displacement commands
To straight line electric drive 7, thin tail sheep movement, displacement are carried out when straight line electric drive 7 drives piston rod 5 to repeat operating condition 1 and operating condition 2
Sensor 13 measures the moving displacement of piston rod 5 and displacement information is fed back to controller 8, and pressure sensor 14C measures pressure stabilizing
Fuel pressure inside device 9 and by force information back to controller 8；If pressure sensor 14C is measured inside voltage-stablizer 9
Fuel pressure is still higher, then controller 8, which continues to issue, reduces displacement commands to straight line electric drive 7, inside voltage-stablizer 9
Fuel pressure it is normal, controller 8, which issues, maintains current displacement commands to straight line electric drive 7.
The small oil mass operating condition of 4 low speed of operating condition：When engine is in low speed side crops industry or low speed sky load working condition, the combustion that needs
Oil mass is smaller, and fuel feeding frequency is lower, and reciprocal oil feed pump 4 enters the small oil mass operating condition of low speed.Controller 8 is simultaneously emitted by reduction speed and refers to
Enable and reduce displacement commands to straight line electric drive 7, straight line electric drive 7 drive piston rod 5 when repeating operating condition 1 and operating condition 2 into
The movement of row low speed thin tail sheep, velocity sensor 12 measure the movement velocity of piston rod 5 and velocity information are fed back to controller 8,
Displacement sensor 13 measures the moving displacement of piston rod 5 and displacement information is fed back to controller 8, pressure sensor 14C measurement
Fuel pressure inside voltage-stablizer 9 and by force information back to controller 8；Controller 8 is according to the oil spout of electric-controlled fuel injector 11
Frequency persistently reduces the movement velocity of piston rod 5, until the fuel feeding frequency of reciprocal oil feed pump 4 and the oil spout frequency of electric-controlled fuel injector 11
Rate matching, then controller 8, which issues, maintains present speed to instruct to straight line electric drive 7, meanwhile, controller 8 continuously sends out reduction
Displacement commands, the fuel pressure inside voltage-stablizer 9 is normal, then controller 8, which issues, maintains current displacement commands to straight-line electric
Driver 7.
The big oil mass operating condition of 5 low speed of operating condition：When engine is in low speed big load operating condition, climbs such as vehicle low speed, need
Amount of fuel it is larger, fuel feeding frequency is lower, and reciprocal oil feed pump 4 enters the big oil mass operating condition of low speed, and the moving displacement of piston 6 is protected at this time
Hold constant, movement velocity reduction；Controller 8, which issues, reduces speed command to straight line electric drive 7, and straight line electric drive 7 drives
Piston rod 5 repeats to carry out low speed normal displacement campaign when operating condition 1 and operating condition 2, and velocity sensor 12 measures the movement speed of piston rod 5
It spends and velocity information is fed back into controller 8, the fuel pressure inside pressure sensor 14C measurement voltage-stablizer 9 simultaneously believes pressure
Breath feeds back to controller 8；Controller 8 continuously sends out reduction speed command, until the fuel feeding frequency and automatically controlled spray of reciprocal oil feed pump 4
The oil spout frequency of oily device 11 matches, then controller 8, which issues, maintains present speed to instruct to straight line electric drive 7.
6 unusual service condition of operating condition：When causing the fuel pressure moment inside voltage-stablizer 9 sharply to increase due to certain failure, supply
Oily device have 3 grades gradually triggering measure solve the problems, such as.1st level security measure：Pressure sensor 14C is anti-by abnormal pressure information
It feeds controller 8, the fuel pressure that controller 8 is measured according to pressure sensor 14A and pressure sensor 14B judges left fuel feeding
Which fuel supply chamber is in oil-absorbing process in chamber 15A and right fuel supply chamber 15B, if left fuel supply chamber 15A is in oil-absorbing process, controls
Device 8 issues after reversed open command gives check valve 3B, check valve 3B reversely to open, and the high pressure fuel inside voltage-stablizer 9 is through unidirectional
Valve 3B is flowed into left fuel supply chamber 15A；It equally is in oil-absorbing process if it is right fuel supply chamber 15B, then reversed open check valve 3D,
High pressure fuel inside voltage-stablizer 9 is flowed into right fuel supply chamber 15B through check valve 3D.2nd level security measure：If check valve 3B
Or after check valve 3D is reversely opened, the fuel pressure inside voltage-stablizer 9 is still abnormal high, and controller 8 issues fuel cut-off instruction
To straight line electric drive 7, stop reciprocal 4 fuel feeding of oil feed pump.3rd level safety measure：Reversed open command is simultaneously emitted by unidirectional
Valve 3B and check valve 3D makes the high pressure fuel inside voltage-stablizer 9 while quickly entering left fuel supply chamber 15A and right fuel supply chamber 15B
Inside, so that the fuel pressure inside voltage-stablizer 9 be made to be reduced in safe range.When the failure of electric-controlled fuel injector 11, spray
The high pressure fuel of big flow, the fuel pressure moment inside voltage-stablizer 9 drastically reduce, and pressure sensor 14C believes abnormal pressure
Breath feeds back to controller 8, and controller 8 issues out code to excess-flow valve 10, realizes oil-break function, prevent the height of big flow
Compression ignition oil sprays into engine and causes the accident and fuel oil waste.
The configuration of the present invention is simple, adjusting method are simple and feasible, and functional reliability is high, and it is normal can sufficiently to meet engine
The requirements of the various workings to fuel delivery such as the small oil mass of fuel feeding, high speed, the small oil mass of low speed, the big oil mass of low speed, unusual service condition, using model
Enclose wide, with good economic efficiency and energy-saving effect.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of more check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation, including fueller and electrical control system in advance
System, it is characterized in that：The fueller includes fuel tank（1）, filter（2）, reciprocal oil feed pump（4）And electric-controlled fuel injector（11）；
The reciprocal oil feed pump（4）By piston rod（5）, piston（6）And fuel supply chamber（15）Composition, the fuel supply chamber（15）Pass through the work
Plug（6）It is divided into left fuel supply chamber（15）A and right fuel supply chamber（15）B；The left fuel supply chamber（15）Oil supply loop ac is set on A, it is described
Right fuel supply chamber（15）Oil supply loop bd is set on B, and the lower end of two oil supply loops connects the fuel tank（1）, upper end connects pressure stabilizing
Device（9）, the voltage-stablizer（9）Right end be provided with excess-flow valve（10）With the electric-controlled fuel injector（11）；The Flow Limit
Valve processed（10）With the electric-controlled fuel injector（11）Pass through line connecting controller（8）.
2. more check valves combination is adaptive according to claim 1 mutually opens the reciprocal fueller of energy conservation, feature in advance
It is：Filter is provided on the oil supply loop ac（2）A, check valve（3）A and check valve（3）It is set on B, the oil supply loop bd
It is equipped with filter（2）B, check valve（3）C and check valve（3）D；The fuel tank（1）Upper end be provided with left end oil outlet a and the right side
Bring out hydraulic fluid port b, the voltage-stablizer（9）Lower end be provided with left end oil inlet c and right end oil inlet d；The voltage-stablizer（9）The right side
End is provided with oil outlet and connects excess-flow valve（10）Oil inlet, excess-flow valve（10）Oil outlet connect electronic control injection
Device（11）Oil inlet, electric-controlled fuel injector（11）Oil outlet connect cylinder.
3. more check valve combinations according to claim 1 or 2 are adaptive mutually to open the reciprocal fueller of energy conservation, feature in advance
It is：Two oil supply loops and the reciprocal oil feed pump（4）Vertical and internal connection, in the oil supply loop ac：The left side
The upper end for bringing out hydraulic fluid port a is sequentially connected the filter（2）A, the check valve（3）A, the left fuel supply chamber（15）A, the list
To valve（3）The B and left end oil inlet c；In the oil supply loop bd：The upper end of the right end oil outlet b is sequentially connected described
Filter（2）B, the check valve（3）C, the right fuel supply chamber（15）B, the check valve（3）The D and right end oil inlet d.
4. more check valves combination is adaptive according to claim 1 mutually opens the reciprocal fueller of energy conservation, feature in advance
It is：The piston rod（5）Left end be provided with straight line electric drive（7）, the straight line electric drive（7）Right end connection speed
Sensor（12）And displacement sensor（13）, the left fuel supply chamber（15）The left upper end of A is provided with pressure sensor（14）A, institute
State right fuel supply chamber（15）The upper right side of B is provided with pressure sensor（14）B；The voltage-stablizer（9）Lower end be provided with pressure biography
Sensor（14）C；The straight line electric drive（7）, the velocity sensor（12）, institute's displacement sensors（13）, the pressure
Sensor（14）, the check valve（3）B, the check valve（3）D, the excess-flow valve（10）With the electric-controlled fuel injector
（11）With the controller（8）Connect and compose electric control system.
5. more check valve combinations are adaptive according to claim 1 or described in 4 mutually opens the reciprocal fueller of energy conservation, spy in advance
Sign is：Each section element of the fueller is connected by oil pipe, and the electric control system passes through control connection；Institute
State piston rod（5）Reciprocating motion by the straight line electric drive（7）It is provided, the piston（6）Movement velocity pass through institute
State velocity sensor（12）Measure the piston rod（5）Movement velocity obtain, the piston（6）Moving displacement pass through it is described
Displacement sensor（13）Measure the piston rod（5）Displacement obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742450.6A CN108843473A (en) | 2018-07-09 | 2018-07-09 | More check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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