CN208793136U - Variable position adaptively switches the reciprocal fueller of two-way energy conservation - Google Patents
Variable position adaptively switches the reciprocal fueller of two-way energy conservation Download PDFInfo
- Publication number
- CN208793136U CN208793136U CN201821075441.8U CN201821075441U CN208793136U CN 208793136 U CN208793136 U CN 208793136U CN 201821075441 U CN201821075441 U CN 201821075441U CN 208793136 U CN208793136 U CN 208793136U
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel
- valve
- reciprocal
- supply chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004134 energy conservation Methods 0.000 title claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 236
- 239000002828 fuel tank Substances 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims description 46
- 239000012530 fluid Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 190
- 239000000295 fuel oil Substances 0.000 description 17
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000001839 systemic circulation Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000011176 pooling Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of variable positions adaptively to switch the reciprocal fueller of two-way 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, and oil passage af is arranged on the left fuel supply chamber A, oil passage gm is arranged on the right fuel supply chamber B；The lower end of the reciprocal oil feed pump is provided with variable position valve, the lower end of the variable position valve is sequentially connected the filter and the fuel tank, the upper end of the reciprocal oil feed pump is sequentially connected switch valve and the electric-controlled fuel injector, and the switch valve and the electric-controlled fuel injector pass through line connecting controller；The utility model structure is simple, and fuel feeding is safe and reliable, high-efficient, performance is good, and device vibration noise is small, long service life, with good economic efficiency and energy-saving effect.
Description
Technical field
The utility model relates to a kind of fuellers of engine, and in particular to a kind of variable position adaptively switches two-way
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 utility model is special
Sharp " a kind of self-suction hydraulic free piston linear engine ", which includes: cylinder
Body, piston component, low pressure accumulator, high pressure accumulator, pressure oil tank, pneumatic control valve and fuel injector, wherein piston component packet
Include cylinder piston, pump piston and compression piston；Since the utility model is started mainly for existing hydraulic free-piston straight line
Structure is complicated for machine, proposes without the deficiencies of self-suction function, is mainly characterized by having " self-suction function ", that is, utilizes the high speed of piston
Oil liquid is sucked pump chamber by the mobile pressure difference generated, to save individual oil feed pump；But pump piston passes through in the utility model
Connecting cylinder is coaxially affixed with cylinder piston, 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, engine speed is certain, cylinder piston
Speed is certain, the movement velocity of pump piston and compression piston be also it is certain, be equal to the movement velocity of cylinder piston, Bu Nenggen
According to the movement velocity for needing automatic adjusument pump piston, compression piston；And the movement travel of pump piston, compression piston is also one
Fixed, it 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.
Utility model content
The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a kind of variable position from
The reciprocal fueller of switching two-way energy conservation is adapted to, improves the fuel feeding environment of traditional fueller, improves fuel feeding frequency and oil spout frequency
The matching degree of rate can adjust fuel feeding demand according to engine running speed, load self-adapting.
The technical solution of the utility model is: a kind of variable position adaptively switches the reciprocal fueller of two-way energy conservation, packet
Fueller and electric control system are included, 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, the fuel supply chamber by the piston be divided into left fuel supply chamber A and
Oil passage af is set on right fuel supply chamber B, the left fuel supply chamber A, oil passage gm is set on the right fuel supply chamber B；The reciprocal confession
The lower end of oil pump is provided with variable position valve, and the lower end of the variable position valve is sequentially connected the filter and the fuel tank,
The upper end of the reciprocal oil feed pump is sequentially connected switch valve and the electric-controlled fuel injector, the switch valve and the electric-controlled fuel injector
Pass through line connecting controller.
The variable position valve is by return spring, spool, solenoid valve, valve rod and intermediate solenoid valve block at the variable bit
The left and right ends for setting valve are symmetrically arranged with return spring A, spool A, solenoid valve A and return spring B, spool B, solenoid valve B；It is described
The centre of the variable position valve is arranged in intermediate solenoid valve and position is fixed, and the intermediate solenoid valve is arranged in the valve rod
On inner hole, the solenoid valve A is arranged on the right side of the spool A and position is fixed, the left side of the spool A and return
The right end of spring A connects, and the interstitial hole of the spool is run through at the both ends of the valve rod and position is fixed.
The oil passage af and oil passage gm is located at the left and right two of the reciprocal oil feed pump and the variable position valve
End, and connection inside oil circuit, the lower end of the oil passage af is provided with filter A, upper end is provided with switch valve A, the fuel feeding
The lower end of road gm is provided with filter B, upper end is provided with switch valve B；It is fuel-displaced that the upper end of the variable position valve is provided with left end
Mouth c and right end oil outlet i, lower end is provided with left end oil inlet b and right end oil inlet h；The upper end of the fuel tank is provided with left end
Oil outlet a and right end oil outlet g；The upper end of the reciprocal oil feed pump is provided with left end oil outlet e and right end oil outlet k, lower end
It is provided with left end oil inlet d and right end oil inlet j；The electric-controlled fuel injector is provided with oil inlet f and oil inlet m, electronic control injection
The oil outlet of device connects cylinder.
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 switch valve, the straight line electric drive, the velocity sensor, institute's displacement sensors, institute
It states pressure sensor and the electric-controlled fuel injector 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 reciprocating motion of the piston rod is provided by the straight line electric drive, and the movement velocity of the piston passes through the speed
The movement velocity of piston rod described in degree sensor measurement obtains, and the moving displacement of the piston passes through the displacement sensor
The displacement of the piston rod obtains.
In the oil passage af: the upper end of the left end oil outlet a is sequentially connected the filter A, the left end oil inlet
Mouth b, the left end oil outlet c, the left end oil inlet d, the left fuel supply chamber A, the left end oil outlet e, the switch valve A
With the left end oil inlet f；In the oil passage bd: the upper end of the right end oil outlet g is sequentially connected the filter B, institute
State right end oil inlet h, the right end oil outlet i, the right end oil inlet j, the right fuel supply chamber B, the right end oil outlet k,
The switch valve B and right end oil inlet m.
The beneficial effects of the utility model are: the delivery rate of the utility model, delivery stroke can be according to various operating conditions
Automatic adjusument, fuel feeding frequency, fuel feeding oil mass and oil spout frequency, the real-time Dynamic Matching of oil spout oil mass, fuel oil in high-pressure oil pipe
Pressure oscillation is small, and fueller does not have oil return, and avoiding in traditional fueller will flow back by the high pressure fuel of oil pump pressurization
Fuel tank saves fuel feeding energy, and has a fuel supply chamber in fuel feeding, fuel feeding efficiency always in reciprocating motion of the pistons Fuel injection system
It is high.
The fueller of the utility model has movement pooling feature, solves the piston and piston rod movement of high-speed motion
Inertia is big, and piston collisions impact the cylinder cap of reciprocal oil feed pump left and right ends, and can make piston and work in urgent fuel cut-off condition
Stopper rod gradual braking, vibration and noise are small, and performance is good, long service life.
The utility model structure is simple, and adjusting method is simple and feasible, can sufficiently meet engine high frequency systemic circulation fuel feeding,
The various workings such as high frequency partial circulating fuel feeding, low frequency systemic circulation fuel feeding, low frequency partial circulating fuel feeding want fuel feeding frequency and fuel delivery
It asks, has a wide range of application, with good economic efficiency and energy-saving effect.
The utility model fuel feeding safety, functional reliability is high, when electric-controlled fuel injector breaks down, can cut off oil spout,
It prevents from the high pressure fuel of big flow from spraying into engine to cause the accident and fuel oil waste, it, can when partial fault occurs in fueller
, as single channel fuel feeding mode, system to be maintained to operate normally by two-way fuel feeding pattern switching.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Referring to Fig. 1, in figure, 1- fuel tank, 2- filter, 3- variable position valve, the reciprocal oil feed pump of 4-, 5- electric-controlled fuel injector,
6- return spring, 7- spool, 8- solenoid valve, 9- valve rod, the centre 10- solenoid valve, 11- piston rod, 12- piston, 13- fuel supply chamber,
14- switch valve, 15- controller, 16- straight line electric drive, 17- velocity sensor, 18- displacement sensor, 19- pressure sensing
Device, arrow show fuel flow direction in figure, and dotted line is control route.
Embodiment: variable position adaptively switches the reciprocal fueller of two-way energy conservation, including fueller and electrical control
System, fueller include fuel tank 1, filter 2, reciprocal oil feed pump 4 and electric-controlled fuel injector 5；Reciprocal oil feed pump 4 is by piston rod
11, piston 12 and fuel supply chamber 13 form, and fuel supply chamber 13 is divided by piston 12 for left fuel supply chamber 13A and right fuel supply chamber 13B, left fuel feeding
Oil passage af is set on chamber 13A, oil passage gm is set on right fuel supply chamber 13B；The lower end of reciprocal oil feed pump 4 is provided with variable position
Valve 3, the lower end of variable position valve 3 are sequentially connected filter 2 and fuel tank 1, and the upper end of reciprocal oil feed pump 4 is sequentially connected switch valve 14
With electric-controlled fuel injector 5, switch valve 14 and electric-controlled fuel injector 5 pass through line connecting controller 15.
Variable position valve 3 is made of return spring 6, spool 7, solenoid valve 8, valve rod 9 and intermediate solenoid valve 10, variable position
The left and right ends of valve 3 are symmetrically arranged with return spring 6A, spool 7A, solenoid valve 8A and return spring 6B, spool 7B, solenoid valve
8B；The centre of variable position valve 3 is arranged in for intermediate solenoid valve 10 and position is fixed, and valve rod 9 is arranged in intermediate solenoid valve 10
Kong Shang, solenoid valve 8A are arranged on the right side of spool 7A and position is fixed, the left side of spool 7A and the right side of return spring 6A
The interstitial hole of spool 7 is run through at the both ends of end connection, valve rod 9 and position is fixed.
Oil passage af and oil passage gm is located at the left and right ends of reciprocal oil feed pump 4 and variable position valve 3, and in oil circuit
Portion's connection, the lower end of oil passage af is provided with filter 2A, upper end is provided with switch valve 14A, and the lower end of oil passage gm is provided with
Filter 2B, upper end are provided with switch valve 14B；The upper end of variable position valve 3 is provided with left end oil outlet c and right end oil outlet i,
Lower end is provided with left end oil inlet b and right end oil inlet h；The upper end of fuel tank 1 is provided with left end oil outlet a and right end oil outlet g；
The upper end of reciprocal oil feed pump 4 is provided with left end oil outlet e and right end oil outlet k, lower end be provided with left end oil inlet d and right end into
Hydraulic fluid port j；Electric-controlled fuel injector 5 is provided with oil inlet f and oil inlet m, and the oil outlet of electric-controlled fuel injector 5 connects cylinder.
The left end of piston rod 11 is provided with straight line electric drive 16, the right end connection speed sensor of straight line electric drive 16
17 and displacement sensor 18, the left upper end of left fuel supply chamber 13A be provided with pressure sensor 19A, the upper right side of right fuel supply chamber 13B is set
It is equipped with pressure sensor 19B；Switch valve 14, straight line electric drive 16, velocity sensor 17, displacement sensor 18, pressure sensing
Device 19 and electric-controlled fuel injector 5 connect and compose electric control system with controller 15.
Each section element of fueller is connected by oil pipe, and electric control system passes through control connection；Piston rod
11 reciprocating motion is provided by straight line electric drive 16, and the movement velocity of piston 12 measures piston rod by velocity sensor 17
11 movement velocity obtains, and the moving displacement of piston 12 is obtained by the displacement that displacement sensor 18 measures piston rod 11.
In oil passage af: the upper end of left end oil outlet a be sequentially connected filter 2A, left end oil inlet b, left end oil outlet c,
Left end oil inlet d, left fuel supply chamber 13A, left end oil outlet e, switch valve 14A and left end oil inlet f；In oil passage bd: right end goes out
The upper end of hydraulic fluid port g be sequentially connected filter 2B, right end oil inlet h, right end oil outlet i, right end oil inlet j, right fuel supply chamber 13B,
Right end oil outlet k, switch valve 14B and right end oil inlet m.
1 high frequency systemic circulation fuel feeding of operating condition: when high engine speeds full load or high speed high-load operation, the fuel delivery that needs
Greatly, fuel feeding frequency is high, carries out high frequency systemic circulation fuel feeding.The fuel feeding frequency of reciprocal oil feed pump 4, fuel delivery and electric-controlled fuel injector 5
The real-time Dynamic Matching of oil spout frequency, distributive value, piston 12 carry out high speed, Quan Weiyi linear reciprocating motion.
When the full displacement linear motion from right to left of piston 12, the solenoid valve 8A of variable position valve 3 and intermediate solenoid valve 10
It is powered simultaneously, under the action of electromagnetic attraction, spool 7A and solenoid valve 8A overcome the spring force of return spring 6A to move right, can
Become the left end oil inlet b and left end oil outlet c of point valve 3, the left end oil inlet d of the left fuel supply chamber 13A of reciprocal oil feed pump 4 is equal
It is closed.Switch valve 14A is opened, and switch valve 14B is closed.Straight line electric drive 16 drives piston rod 11, and full displacement is straight from right to left
When line moves, piston rod 11 pulls the full displacement movement from right to left of piston 12, the sealing of the right fuel supply chamber 13B of reciprocal oil feed pump 4
Chamber volume becomes larger, pressure reduction, generates vacuum, under atmospheric pressure, right end of the fuel oil through fuel tank 1 in fuel tank 1 is fuel-displaced
Mouthful g, filter 2B, the right end oil inlet h of variable position valve 3 and right end oil outlet i, right fuel supply chamber 13B right end oil inlet j into
Enter to inside right fuel supply chamber 13B, completes an oil-absorbing process.Meanwhile piston 12 moves from right to left, a left side for reciprocal oil feed pump 4
The seal chamber volume of fuel supply chamber 13A becomes smaller, and the fuel oil inside left fuel supply chamber 13A is compressed, and fuel pressure increases, due to left confession
The left end oil inlet d of oil pocket 13A is closed, and high pressure fuel can not be by the left end oil inlet d of left fuel supply chamber 13A, can only be by a left side
Left end oil outlet e, the switch valve 14A of fuel supply chamber 13A is entered in electric-controlled fuel injector 5, completes a pressure oil process, electronic control injection
Fuel oil with certain pressure and flow is injected to the acting of engine air in-cylinder combustion by device 5.
When the full displacement linear motion from left to right of piston 12, the solenoid valve 8A power-off of variable position valve 3, in return spring
Under the spring-force driven dual of 6A, spool 7A and solenoid valve 8A are moved downward and are returned to original position, the left end oil inlet b of variable position valve 3 and
The left end oil inlet d of left end oil outlet c, the left fuel supply chamber 13A of reciprocal oil feed pump 4 are opened.Meanwhile solenoid valve 8B and centre
Solenoid valve 10 is powered, and under the action of electromagnetic attraction, spool 7B and solenoid valve 8B overcome the spring force of return spring B11 to transport to the left
It is dynamic, the right end oil inlet h and right end oil outlet i of variable position valve 3, the right end oil inlet of the right fuel supply chamber 13B of reciprocal oil feed pump 4
Mouth j is closed.Switch valve 14A is closed, and switch valve 14B is opened.Straight line electric drive 16 drives piston rod 11 complete from left to right
When displacement movement, piston rod 11 pushes the full displacement movement from left to right of piston 12, and the left fuel supply chamber 13A's of reciprocal oil feed pump 4 is close
Envelope chamber volume becomes larger, and pressure reduction generates vacuum, and under atmospheric pressure, the fuel oil in fuel tank 1 goes out through the left end of fuel tank 1
The left end oil inlet d of hydraulic fluid port a, filter 2A, the left end oil inlet b of variable position valve 3 and left end oil outlet c, left fuel supply chamber 13A
It enters inside left fuel supply chamber 13A, completes an oil-absorbing process.Meanwhile piston 12 moves from left to right, reciprocal oil feed pump 4
The seal chamber volume of right fuel supply chamber 13B becomes smaller, and the fuel oil inside right fuel supply chamber 13B is compressed, and fuel pressure increases, due to the right side
The right end oil inlet j of fuel supply chamber 13B is closed, and high pressure fuel can not can only be passed through by the right end oil inlet j of right fuel supply chamber 13B
Right end oil outlet k, the switch valve 14B of right fuel supply chamber 13B is entered in electric-controlled fuel injector 5, completes a pressure oil process, automatically controlled spray
Fuel oil with certain pressure and flow is injected to the acting of engine air in-cylinder combustion by oily device 5.
2 high frequency partial circulating fuel feeding of operating condition: when high engine speeds, middle light running, the fuel feeding frequency needed is high, fuel delivery
It is small, carry out high frequency partial circulating fuel feeding, the fuel feeding frequency of reciprocal oil feed pump 4, the oil spout frequency of fuel delivery and electric-controlled fuel injector 5, spray
Oil mass matches, and 12 moving displacement of piston reduces, and carries out high speed, partial dislocation movement；High frequency partial circulating fuel feeding operating condition, controller
15 issue reduction displacement commands to straight line electric drive 16, and straight line electric drive 16 drives piston rod 11 from left to right and by left-hand
Partial dislocation movement is carried out when right movement, displacement sensor 18 measures the moving displacement of piston rod 11 and feeds back to displacement information
Controller 15, pressure sensor 19A, pressure sensor 19B measure the combustion inside left fuel supply chamber 13A and right fuel supply chamber 13B respectively
Oil pressure and by force information back to controller 15.If pressure sensor 19A, pressure sensor 19B measures fuel feeding terminates
At the moment, the fuel pressure inside left fuel supply chamber 13A, right fuel supply chamber 13B is still higher, then controller 15, which continues to issue, reduces displacement
It instructs to straight line electric drive 16, until fuel feeding finish time, the fuel pressure inside left fuel supply chamber 13A, right fuel supply chamber 13B is just
Often, controller 15, which issues, maintains current displacement commands to straight line electric drive 16.
3 low frequency systemic circulation fuel feeding of operating condition: when low engine speed, full load or high-load operation, such as full load or big negative
When lotus is climbed, the fuel delivery needed is big, and fuel feeding frequency is low, progress low frequency systemic circulation fuel feeding, the fuel feeding frequency of reciprocal oil feed pump 4,
Fuel delivery matches with the oil spout frequency of electric-controlled fuel injector 5, distributive value, and piston 12 carries out low speed, full displacement movement；Controller 15
It issues and reduces speed command to straight line electric drive 16, straight line electric drive 16 drives piston rod 11 to carry out low speed, full displacement fortune
Dynamic, velocity sensor 17 measures the movement velocity of piston rod 11 and velocity information is fed back to controller 15, pressure sensor
19A, pressure sensor 19B measure the fuel pressure inside left fuel supply chamber 13A and right fuel supply chamber 13B and pressure information is anti-respectively
It feeds controller 15.Controller 15 continuously sends out reduction speed command, until the fuel feeding frequency and electronic control injection of reciprocal oil feed pump 4
The oil spout frequency of device 5 matches, then controller 15, which issues, maintains present speed to instruct to straight line electric drive 16.
4 low frequency partial circulating fuel feeding of operating condition: when engine is in low speed side crops industry or low speed sky load working condition, the fuel oil that needs
Measure small, fuel feeding frequency is low, carries out low frequency partial circulating fuel feeding, fuel feeding frequency, fuel delivery and the electric-controlled fuel injector 5 of reciprocal oil feed pump 4
Oil spout frequency, distributive value match, piston 12 carry out low speed, partial dislocation movement；Controller 15 is simultaneously emitted by reduction speed
To straight line electric drive 16, straight line electric drive 16 drives piston rod 11 to carry out low speed, part position for instruction and reduction displacement commands
Shifting movement, velocity sensor 17 measure the movement velocity of piston rod 11 and velocity information are fed back to controller 15, displacement sensing
Device 18 measures the moving displacement of piston rod 11 and displacement information is fed back to controller 15, pressure sensor 19A, pressure sensor
19B measures the fuel pressure inside left fuel supply chamber 13A and right fuel supply chamber 13B and by force information back to controller 15 respectively.
Controller 15 persistently reduces the movement velocity of piston rod 11 according to the oil spout frequency of electric-controlled fuel injector 5, until reciprocal oil feed pump 4
Fuel feeding frequency is matched with the oil spout frequency of electric-controlled fuel injector 5, then the sending of controller 15 maintains present speed to instruct and gives straight-line electric drive
Dynamic device 16.Meanwhile controller 15 continuously sends out reduction displacement commands, and until fuel feeding finish time, left fuel supply chamber 13A, right fuel feeding
Fuel pressure inside chamber 13B is normal, then controller 15, which issues, maintains current displacement commands to straight line electric drive 16.
Operating condition 5 moves pooling feature: during normal fuel injection, due to piston 12,11 high-speed motion of piston rod, movement
Inertia is big, can the reciprocal oil feed pump 4 or so of collision impact when piston 12, piston rod 11 move to reciprocal 4 left and right ends of oil feed pump
The cylinder cap at both ends causes vibration and noise, influences the performance and used life of reciprocal oil feed pump 4.
After opening movement pooling feature, in the full displacement movement process from right to left of piston 12, when piston 12 moves to left end
When the position of oil outlet e, left fuel supply chamber 13A becomes a closed chamber, and the oil liquid inside left fuel supply chamber 13A hinders piston 12 by the right side
It moves downward, realizes movement buffering.Simultaneous displacement sensor 18 sends a signal to controller 15, and controller 15 issues stop motion
It instructs to straight line electric drive 16, issues electrical instruction to the solenoid valve 8B of variable position valve 3 and intermediate solenoid valve 10, solenoid valve
8B and intermediate solenoid valve 10 are powered, and under the action of electromagnetic attraction, spool 7B and solenoid valve 8B overcome the spring of return spring B11
Power moves downward, and the right end oil inlet j of the right fuel supply chamber 13B of reciprocal oil feed pump 4 is closed.Since switch valve 14B is in piston 12
It is closed during full displacement movement from right to left.At this point, right fuel supply chamber 13B becomes a closed chamber, hinder piston 12 by dextrad
Left movement also realizes movement buffering.
After opening movement pooling feature, when 12 full displacement movement from left to right of piston, when piston 12 moves to right end
When position more than right end oil outlet k, right fuel supply chamber 13B becomes a closed chamber, and the oil liquid inside right fuel supply chamber 13B hinders to live
Plug 12 moves from left to right, realizes movement buffering.Simultaneous displacement sensor 18 sends a signal to controller 15, and controller 15 issues
Stop motion is instructed to straight line electric drive 16, issues electrical instruction to the solenoid valve 8A of variable position valve 3 and intermediate solenoid valve
10, solenoid valve 8A and intermediate solenoid valve 10 are powered, and under the action of electromagnetic attraction, spool 7A and solenoid valve 8A overcome return spring
The spring force of 6A moves right, and the left end oil inlet d of the left fuel supply chamber 13A of reciprocal oil feed pump 4 is closed, due to switch valve 14A
It is closed during 12 full displacement movement from left to right of piston, left fuel supply chamber 13A becomes a closed chamber, hinders piston 12 by a left side
It moves right, also realizes movement buffering.
After opening movement pooling feature, when fuel feeding terminates or when emergent stopping fuel feeding, controller 15 is simultaneously emitted by three fingers
Enable: first instruction issues stop motion and instructs to straight line electric drive 16, and straight line electric drive 16 stops driving 12 He of piston
Piston rod 11 moves.Second instruction, controller 15 issue solenoid valve 8A, intermediate electromagnetism of the electrical instruction to variable position valve 3
Valve 10 and solenoid valve 8B；Solenoid valve 8A and the intermediate energization of solenoid valve 10, spool 7A and solenoid valve 8A overcome the bullet of return spring 6A
Spring force moves right, and the left end oil inlet d of the left fuel supply chamber 13A of reciprocal oil feed pump 4 is closed；Solenoid valve 8B and intermediate solenoid valve
10 are powered, and spool 7B and solenoid valve 8B overcome the spring force of return spring B11 to move downward, the right fuel supply chamber of reciprocal oil feed pump 4
The right end oil inlet j of 13B is closed.Third instruction, controller 15 issue out code to switch valve 14A and switch valve 14B,
Switch valve 14A and switch valve 14B are turned off.Left fuel supply chamber 13A, right fuel supply chamber 13B become closed chamber, and piston 12 is hindered to transport
It is dynamic, realize that fuel feeding terminates or movement buffering when emergent stopping fuel feeding.
6 safety protection function of operating condition: if since reciprocal oil feed pump 4 or electric-controlled fuel injector 5 break down in operational process,
The oil spout for needing the fuel feeding or electric-controlled fuel injector 5 of the reciprocal oil feed pump 4 of emergency cut-off is avoiding causing due to failure fuel pressure not just
It often occurs as guaranteeing that Fuel injection system is safe and reliable, safety protection function has both of which: cutting fuel injection mode, single channel fuel feeding mould
Formula.
It cuts off fuel injection mode: when the failure of electric-controlled fuel injector 5, spraying the high pressure fuel of big flow, lead to left fuel supply chamber
Fuel pressure moment inside 13A or right fuel supply chamber 13B drastically reduces, and pressure sensor 19A, pressure sensor 19B are by left confession
Oil pocket 13A or right fuel supply chamber 13B internal fuel pressure anomaly reduce information and feed back to controller 15, and controller 15, which issues to close, to be referred to
It enables to switch valve 14A or switch valve 14B, cutting enters the fuel oil of electric-controlled fuel injector 5, realizes individually cutting oil spout, prevents from flowing greatly
The high pressure fuel of amount sprays into engine and causes the accident and fuel oil waste.
Single channel fuel feeding mode: when there is partial fault in fueller, it cannot be guaranteed that piston 12 is when making straight reciprocating motion,
Left fuel supply chamber 13A, the right fuel supply chamber 13B of reciprocal oil feed pump 4 have a fuel supply chamber in fuel feeding always.Controller 15 issues single channel and supplies
Oil instruction is to variable position valve 3.When left fuel supply chamber 13A single channel fuel feeding, switch valve 14B is closed always.When piston 12 from left to right
When linear motion, switch valve 14A is closed.The seal chamber volume of the left fuel supply chamber 13A of reciprocal oil feed pump 4 becomes larger, and pressure reduction produces
Raw vacuum, under atmospheric pressure, left end oil outlet a, filter 2A, variable position valve of the fuel oil through fuel tank 1 in fuel tank 1
3 left end oil inlet b and left end oil outlet c, the left end oil inlet d of left fuel supply chamber 13A are entered inside left fuel supply chamber 13A, complete
Cheng Yici oil-absorbing process.When 12 full displacement movement from right to left of piston, the solenoid valve 8A of variable position valve 3 and intermediate solenoid valve
10 are powered simultaneously, and under the action of electromagnetic attraction, spool 7A and solenoid valve 8A overcome the spring force of return spring 6A to move right,
The left end oil inlet b and left end oil outlet c of variable position valve 3, the left end oil inlet d of the left fuel supply chamber 13A of reciprocal oil feed pump 4
It is closed.Switch valve 14A is opened.The seal chamber volume of the left fuel supply chamber 13A of reciprocal oil feed pump 4 becomes smaller, in left fuel supply chamber 13A
The fuel oil in portion is compressed, and fuel pressure increases, and high pressure fuel passes through left end oil outlet e, the switch valve 14A of left fuel supply chamber 13A
It enters in electric-controlled fuel injector 5, completes a pressure oil process.
When right fuel supply chamber 13B single channel fuel feeding, switch valve 14A is closed always.When 12 full displacement movement from right to left of piston,
Switch valve 14B is closed, and the seal chamber volume of the right fuel supply chamber 13B of reciprocal oil feed pump 4 becomes larger, pressure reduction, vacuum is generated, big
F mouth, filter 2B, the right end oil inlet h of variable position valve 3 and the right side of the fuel oil through fuel tank 1 under the action of air pressure, in fuel tank 1
Bring out hydraulic fluid port i, the right end oil inlet j of right fuel supply chamber 13B is entered inside right fuel supply chamber 13B, complete an oil-absorbing process.Work as work
Plug 12 from left to right full displacement movement when, the solenoid valve 8B of variable position valve 3 and intermediate solenoid valve 10 are powered simultaneously, in electromagnetism suction
Under the action of power, spool 7B and solenoid valve 8B overcome the spring force of return spring B11 to move downward, the right end of variable position valve 3
Oil inlet h and right end oil outlet i, the right end oil inlet j of the right fuel supply chamber 13B of reciprocal oil feed pump 4 are closed.Switch valve 14B
It opens.The seal chamber volume of the right fuel supply chamber 13B of reciprocal oil feed pump 4 becomes smaller, and the fuel oil inside right fuel supply chamber 13B is compressed,
Fuel pressure increases, and high pressure fuel enters electric-controlled fuel injector 5 by right end oil outlet k, the switch valve 14B of right fuel supply chamber 13B
It is interior, complete a pressure oil process.
The utility model structure is simple, and fuel feeding is safe and reliable, high-efficient, improves the fuel feeding environment of traditional fueller, mentions
The matching degree of high fuel feeding frequency and oil spout frequency can adjust fuel feeding demand according to engine running speed, load self-adapting.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, it is made by the above technical examples according to the technical essence of the present invention it is any it is simple modification, equivalent variations with
Modification, is still within the scope of the technical solutions of the present invention.
Claims (5)
1. a kind of variable position adaptively switches the reciprocal fueller of two-way energy conservation, including fueller and electric control system,
It is characterized in that: the fueller includes fuel tank (1), filter (2), reciprocal oil feed pump (4) and electric-controlled fuel injector (5)；It is described
Reciprocal oil feed pump (4) is made of piston rod (11), piston (12) and fuel supply chamber (13), and the fuel supply chamber (13) passes through the piston
(12) it is divided into left fuel supply chamber (13) A and right fuel supply chamber (13) B, oil passage af, the right confession is set on left fuel supply chamber (13) A
Oil passage gm is set on oil pocket (13) B；The lower end of the reciprocal oil feed pump (4) is provided with variable position valve (3), the variable bit
The lower end for setting valve (3) is sequentially connected the filter (2) and the fuel tank (1), and the upper end of the reciprocal oil feed pump (4) successively connects
Switch valve (14) and the electric-controlled fuel injector (5) are connect, the switch valve (14) and the electric-controlled fuel injector (5) pass through connection
Controller (15).
2. variable position according to claim 1 adaptively switches the reciprocal fueller of two-way energy conservation, it is characterized in that: described
Variable position valve (3) is made of return spring (6), spool (7), solenoid valve (8), valve rod (9) and intermediate solenoid valve (10), described
The left and right ends of variable position valve (3) are symmetrically arranged with return spring (6) A, spool (7) A, solenoid valve (8) A and return spring
(6) B, spool (7) B, solenoid valve (8) B；The centre in the variable position valve (3) and position is arranged in the intermediate solenoid valve (10)
Fixation is set, the valve rod (9) is arranged on the inner hole of the intermediate solenoid valve (10), and solenoid valve (8) A is arranged in the valve
On the right side of core (7) A and position is fixed, and the left side of spool (7) A is connect with the right end of return spring (6) A, described
The interstitial hole of the spool (7) is run through at the both ends of valve rod (9) and position is fixed.
3. variable position according to claim 1 adaptively switches the reciprocal fueller of two-way energy conservation, it is characterized in that: described
Oil passage af and oil passage gm is located at the left and right ends of the reciprocal oil feed pump (4) and the variable position valve (3), and oil
Connection inside road, the lower end of the oil passage af is provided with filter (2) A, upper end is provided with switch valve (14) A, the fuel feeding
The lower end of road gm is provided with filter (2) B, upper end is provided with switch valve (14) B；The upper end of the variable position valve (3) is arranged
There are left end oil outlet c and right end oil outlet i, lower end is provided with left end oil inlet b and right end oil inlet h；The fuel tank (1) it is upper
End is provided with left end oil outlet a and right end oil outlet g；The upper end of the reciprocal oil feed pump (4) is provided with left end oil outlet e and the right side
Hydraulic fluid port k is brought out, lower end is provided with left end oil inlet d and right end oil inlet j；The electric-controlled fuel injector (5) be provided with oil inlet f and
The oil outlet of oil inlet m, electric-controlled fuel injector (5) connect cylinder.
4. variable position according to claim 1 adaptively switches the reciprocal fueller of two-way energy conservation, it is characterized in that: described
The left end of piston rod (11) is provided with straight line electric drive (16), the right end connection speed sensing of the straight line electric drive (16)
The left upper end of device (17) and displacement sensor (18), left fuel supply chamber (13) A is provided with pressure sensor (19) A, the right side
The upper right side of fuel supply chamber (13) B is provided with pressure sensor (19) B；The switch valve (14), the straight line electric drive (16),
The velocity sensor (17), institute's displacement sensors (18), the pressure sensor (19) and the electric-controlled fuel injector (5) are equal
Electric control system is connected and composed with the controller (15).
5. variable position according to claim 4 adaptively switches the reciprocal fueller of two-way energy conservation, it is characterized in that: described
Each section element of fueller is connected by oil pipe, and the electric control system passes through control connection；The piston rod
(11) reciprocating motion is provided by the straight line electric drive (16), and the movement velocity of the piston (12) passes through the speed
The movement velocity that sensor (17) measures the piston rod (11) obtains, and the moving displacement of the piston (12) passes through the displacement
The displacement that sensor (18) measures the piston rod (11) obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821075441.8U CN208793136U (en) | 2018-07-09 | 2018-07-09 | Variable position adaptively switches the reciprocal fueller of two-way energy conservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821075441.8U CN208793136U (en) | 2018-07-09 | 2018-07-09 | Variable position adaptively switches the reciprocal fueller of two-way energy conservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793136U true CN208793136U (en) | 2019-04-26 |
Family
ID=66202034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821075441.8U Active CN208793136U (en) | 2018-07-09 | 2018-07-09 | Variable position adaptively switches the reciprocal fueller of two-way energy conservation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757248A (en) * | 2018-07-09 | 2018-11-06 | 郑州航空工业管理学院 | Variable position adaptively switches the energy saving reciprocal fueller of two-way |
-
2018
- 2018-07-09 CN CN201821075441.8U patent/CN208793136U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757248A (en) * | 2018-07-09 | 2018-11-06 | 郑州航空工业管理学院 | Variable position adaptively switches the energy saving reciprocal fueller of two-way |
| CN108757248B (en) * | 2018-07-09 | 2023-09-05 | 郑州航空工业管理学院 | Variable position self-adaptive switching double-path energy-saving reciprocating oil supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8135534B2 (en) | Hydraulic engine | |
| CN102230484A (en) | Integrated continuous gas-driving hydraulic force booster | |
| CN201794735U (en) | Hydraulic drive type liquid booster pump | |
| CN110285109A (en) | A kind of pneumatic control valve and gas-liquid pressure conversion control device | |
| CN201858032U (en) | Electric control system for high-power low-speed diesel engine | |
| CN104912660A (en) | Two-cylinder four-stroke hydraulic free piston engine based on electric control compression stroke | |
| CN208793136U (en) | Variable position adaptively switches the reciprocal fueller of two-way energy conservation | |
| CN108757248A (en) | Variable position adaptively switches the energy saving reciprocal fueller of two-way | |
| CN201208898Y (en) | Energy recovery and supercharging device for internal combustion engine | |
| CN208793137U (en) | More check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation in advance | |
| CN101892942A (en) | Single piston hydraulic free-piston engine capable of reducing pumping flow pulsation | |
| CN204591609U (en) | Electromagnetic type variable cam mechanism and little pulsation variable-flow oil supplying device | |
| CN102661237B (en) | Semiautomatic flow distribution type hydraulic free piston engine | |
| CN110454460B (en) | Quick oil cylinder with pressurization function | |
| CN102168800B (en) | Dual-point oil supply oil feeder and oil feeder integration | |
| CN210530941U (en) | Common rail system driven in-cylinder brake device of engine | |
| CN108843473A (en) | More check valve combinations are adaptive mutually to open the reciprocal fueller of energy conservation in advance | |
| CN201236860Y (en) | Automatic operation apparatus for gas cylinder | |
| CN210530939U (en) | Engine cylinder braking device driven by fuel injection pump | |
| CN103470385A (en) | Low-speed marine diesel engine high-pressure common rail fuel oil spraying control system | |
| CN204492917U (en) | A kind of high-power marine low-speed diesel engine discharge valve apparatus | |
| CN202419095U (en) | Automatic oil injection system of multi-station press | |
| CN109162848B (en) | Electric control oil injector system | |
| CN202047957U (en) | Hydraulic two-cylinder single-acting reciprocating pump driving system adopting turning valve to change direction | |
| CN201246291Y (en) | Parallel type hydraulic water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |