CN106321310A - Fuel regulating pump with washing device on throttling portion - Google Patents
Fuel regulating pump with washing device on throttling portion Download PDFInfo
- Publication number
- CN106321310A CN106321310A CN201610732051.2A CN201610732051A CN106321310A CN 106321310 A CN106321310 A CN 106321310A CN 201610732051 A CN201610732051 A CN 201610732051A CN 106321310 A CN106321310 A CN 106321310A
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- CN
- China
- Prior art keywords
- oil
- regulation
- pump
- restriction
- fuel oil
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
- F02B2077/045—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines by flushing or rinsing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to the field of internal combustion engines and particularly discloses a fuel regulating pump with a washing device on a throttling portion. The fuel regulating pump comprises a fuel regulating pump body, the throttling portion, an oil pumping pipe and an oil return pipe. One end of the oil return pipe is fixedly connected with the throttling portion, and the other end of the oil return pipe is fixedly connected with the fuel regulating pump body. The throttling portion comprises a low-pressure region, a suction region and a regulating valve sliding in the low-pressure region and the suction region. One end of the regulating valve is arranged in the suction region, and the other end of the regulating valve is arranged in the low-pressure region. An oil storage chamber, an oil inlet tank, an oil filling opening, an oil return tank and an oil outlet hole are arranged in the suction region. The fuel regulating pump body is fixedly connected with the oil filling opening in the top of the throttling portion through the oil pumping pipe. The oil inlet tank, the oil return tank and the oil outlet hole communicate with the oil storage chamber to form a cavity. The regulating valve is opposite to the oil filling opening. The throttling portion is provided with the repeated washing device. According to the scheme, the repeated washing device is arranged on the oil inlet tank of the throttling portion, and an oil way in the throttling portion is prevented from being clogged.
Description
Technical field
The invention belongs to field of internal combustion engine, be specifically related to a kind of restriction and be provided with the fuel oil regulation pump of flusher.
Background technology
Fuel pump effect is to be transported in fuel feed pump after fuel oil sucking-off from fuel tank, pressurization, fuel pump and fuel oil pressure
Draught control mechanism coordinates sets up certain fuel pressure, and it is one of basic composition of electro jet car fuel injection system.In order to enable
Allow fuel oil quickly mix with air, need to spray the fuel oil of q.s within the extremely short time, be now accomplished by fuel pressure and adjust
Fuel-injection pressure heightened by joint valve, could spray fuel oil and the air fast mixing combustion of q.s.
Patent No. CN103270289A patent of invention discloses a kind of combustion for internal combustion engine having by pump operation
The pressure-regulating device of material spraying system, has a valve being arranged on pump pressure side, and described valve is for by the fuel under low pressure
From the suction side being on the pressure side drawn out to pump of pump, it is characterised in that the suction side at pump arranges one and has variable throttling effect
The variable restriction answered, in order to the fuel quantity flowing to pump is throttled.Tied by machinery on the pump of fuel injection system
Constitutive element part realizes pressure regulation, not only achieves pressure by the Function Coupling of valve Yu variable restriction and declines regulation, and pump is also
Throttling, the energy requirement of fuel injection and the fuel consumption of whole system can be aspirated owing to lacking according to the pressure of high-pressure area
Lack electric elements and reduce.
Foregoing invention patent solves some problems, but is designed with certain defect, side in the internal duct of restriction
It is one-body molded that the design of the restriction interior groove in the middle of case is on steel construction, and the diameter of each groove is the least, it is impossible to
Individually clean, it is also difficult to lubricating oil, internal structure is carried out, fricative iron filings between each structure or
Some impurity of fuel oil itself are easily deposited in the middle of oil circuit, and whole restriction or even whole fuel oil regulation pump can be caused all to be difficult to
Normal work, and then affect fueling injection equipment and the dynamic property of whole electromotor.
Summary of the invention
The invention is intended to the fuel oil regulation pump providing a kind of restriction to be provided with flusher, realize with flusher repeatedly
Flushing repeatedly to oil-feed tank, it is to avoid oil circuit blocks.
In order to achieve the above object, the base case of the present invention is as follows: a kind of restriction is provided with the fuel oil of flusher
Regulation pump, including fuel oil regulation pump, restriction, pump oil pipe and oil return pipe, described oil return pipe one end is fixing connects restriction, oil return
The pipe other end is fixing connects fuel oil regulation pump, and described restriction is divided and included low-pressure area, suction district and in low-pressure area and suction district
The regulation valve slided, one end of described regulation valve is arranged in suction district, and the other end of regulation valve is arranged in low-pressure area, described
Being provided with accumulator, oil-feed tank, pouring orifice, spill port, oil-recovery tank and oil outlet in suction district, described fuel oil regulation pump is by pump oil
Pipe is fixing with the pouring orifice at restriction top to be connected, and described oil-feed tank, oil-recovery tank, spill port and oil outlet are respectively with accumulator even
Logical formation cavity is overall, and described regulation valve is oppositely arranged with pouring orifice, and described restriction is provided with flusher repeatedly.
The principle of base case: when fuel oil regulation pump does not works, regulation valve has a little higher than atmospheric pressure in low-pressure area
Pressure, pressure act on regulation valve on, regulation valve compress pouring orifice.During operation, when fuel oil regulation pump starts supercharging, pump oil
When fuel oil pressure in pipe raises, fuel oil injects in the middle of the pouring orifice of restriction by pump oil pipe, and the oil pressure of fuel oil is applied to regulation
On valve, regulation valve is under the effect of oil pressure, and when the pressure of oil pressure is more than low-pressure area, regulation valve starts to move to low-pressure area, when
When regulation valve moves to the position no longer blocking the opening of oil-feed tank, fuel oil, is entered when being injected in the middle of accumulator by oil-feed tank
And entering in the oil outlet connected with cavity, fuel oil enters the process of next gasoline combustion；Now it is at fuel oil regulation pump
During pump oil, flusher is in the state of the pressure absorbing fuel oil repeatedly；Fuel oil regulation pump at less charge oil pressure or
When quitting work, regulation valve, under the pressure effect that low-pressure area release is absorbed, is returned in situ by regulation valve, and regulation valve will note
Hydraulic fluid port is closed, and in the middle of this process, fuel oil unnecessary in restriction returns to fuel oil regulation pump by oil-recovery tank and oil return pipe and works as
In, continue cycling through；After fuel oil regulation air pump inoperative, flusher utilizes the position advantage less than accumulator repeatedly, repeatedly rushes
Also having fuel oil in the middle of cleaning device and absorb the pressure of fuel oil, the fuel pressure that flusher release absorbs the most repeatedly is to repeatedly
Fuel oil in the middle of flusher applies pressure, and the impulsive force that fuel oil has carries out back flush to oil-feed tank.
The advantage of base case: the most whole restriction can save fuel oil by the structure of machinery, utilizes fuel oil to regulate pump
Pressure the amount of the fuel oil in restriction is controlled, it is not necessary to electronic component can realize sensitive pump oil, it is to avoid electronics
The element consumption to fuel oil.At one low-pressure area of restriction indoor design, by the absorption to pressure and the energy storage of low-pressure area,
When regulation valve needs to recover script position, low-pressure area can provide a pressure to allow regulation valve return in situ, it is simple to realizes next
Individual circulation.
2. on the oil circuit of the inside of restriction, it is provided with oil-feed tank, accumulator and oil-recovery tank, after oil-feed, passes through accumulator
Realizing the storage of fuel oil, when in whole oil circuit, oil mass is too much, oil-recovery tank can be by unnecessary oil by spill port and oil return
Pipe returns in the middle of fuel oil regulation pump, and whole circulation can regulate the oil in the middle of oil circuit by the pump oil pressure of fuel oil regulation pump
Amount, it is to avoid the waste of energy.
Flusher in use utilizes the pump oil pressure of fuel oil regulation pump the most repeatedly, completes whole work in restriction
Time, it is possible to utilize the pressure of fuel oil itself to complete the flushing to oil-feed tank, it is to avoid oil-feed tank is blocked, it is possible to realize oil-feed tank
Back flush, more effectively avoid blocking, go back reasonable employment energy.
Preferred version one: based on the preferred version of scheme, described regulation valve lower end is provided with buffer unit, described buffering
Device is atmospheric buffer device.By above-mentioned setting, the oil pressure from fuel oil regulation pump transmission is born in one end of regulation valve, another
End connects the atmospheric buffer device of low-pressure area, and pressure buffer rotary device can absorb this pressure, and when oil pressure height, regulation valve produces
Displacement, pressure buffer rotary device carries out energy storage, and when oil pressure reduces, pressure buffer rotary device releases energy, keeps flat with oil pressure
Weighing apparatus, during until oil pressure is atmospheric pressure, regulation valve returns in situ under the low-pressure effect of atmospheric buffer device, and regulation valve is at air pressure
Under the effect of buffer unit and fuel oil regulation pump, the position of regulation valve is to change according to the change of oil pressure.Beneficial effect: gas
Pressure buffer unit structure is simple, reliable operation, when can realizing moving back and forth, and stable movement, it is possible to meet delaying needed for regulating valve
The needs of punching.
Preferred version two: the preferably preferred version of, described atmospheric buffer device includes piston rod and cylinder barrel,
Described piston rod upper end connects regulation valve, and described cylinder barrel is fixedly mounted on the inwall of low-pressure area.By above-mentioned setting, piston rod
Upper end is connected with regulation valve lower end, and cylinder barrel is fixed in low-pressure area, connects realization regulation valve by sliding up and down of piston rod
Also slide up and down.Beneficial effect: sliding part is connected the most reliable with regulation valve, and cylinder barrel is arranged on the inwall of low-pressure area, makes cylinder
Cylinder is more firm.
Preferred version three: based on the preferred version of scheme, described flusher repeatedly includes control valve, oil storing tube
And the energy storage device being connected with control valve, described control valve is connected with fuel oil regulation pump, and described oil storing tube one end connects oil-feed tank,
Energy storage device is installed on the other end of oil storing tube.By above-mentioned setting, flusher includes control valve, oil storing tube and storage repeatedly
Energy device these three structure, oil inlet pipe, for controlling whether energy storage device discharges absorbed pressure, is rinsed by control valve；Oil storage
Pipe is to ensure that pressure can store fuel oil, and fuel oil carries out back flush to oil-feed tank；Energy storage device can absorb fuel oil band
The pressure come, when absorbing extreme position, energy storage device is carried out spacing by control valve, and when fuel oil regulation pump is opened, control valve is replied
To initial position, the fuel oil in oil storing tube carries out back flush to oil-feed tank under the effect of energy storage device.Beneficial effect: can
Controlling flushing opportunity by fuel oil regulation pump, it is achieved automatization, energy storage device can Appropriate application fuel oil regulation pump transmission
Pressure, reverse oil flush is avoided oil-feed tank to block, is rinsed oil-feed tank when opening fuel oil regulation pump every time, is also
Oil circuit cavity supplements fuel oil.
Preferred version four: the preferably preferred version of three, described energy storage device is made up of spring and piston, described
Spring one end connects oil storing tube inwall, and the other end of spring connects piston.By above-mentioned setting, energy storage device is arranged on oil storing tube
Bottom, energy storage device absorb oil pressure bring pressure time, piston and spring are compressed, when reaching desired location, control
Valve cuts out, and when needs are flushed into oil groove, only needs opening controlling valve, opens at fuel oil regulation pump, when oil pressure raises, and spring
Continue energy storage with piston, carry out next circulation.Beneficial effect: the energy storage device of spring and piston can quickly tackle the change of oil pressure
Changing, also can quickly discharge spring when rinsing, spring assembly is reliable, and the sealing structure of piston is good, it is to avoid fuel oil enters
Enter spring terminal, it is to avoid flusher lost efficacy repeatedly.
Accompanying drawing explanation
Fig. 1 is the sectional view that restriction of the present invention is provided with the fuel oil regulation pump embodiment of flusher；
Fig. 2 is the partial structurtes schematic diagram that restriction of the present invention is provided with the fuel oil regulation pump embodiment of flusher.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference in Figure of description includes: fuel oil regulation pump 10, pump oil pipe 101, oil return pipe 102, restriction 2, suction
District 20, pouring orifice 201, regulation valve 202, oil-feed tank 203, spill port 204, oil-recovery tank 205, oil outlet 206, low-pressure area 30, cylinder
Cylinder 301, pneumaticpiston 302, piston rod 303, fueling injection equipment 40, flowline 401, repeatedly flusher 50, oil storing tube 501, control
Valve 502 processed, piston 503, spring 504.
Embodiment is the most as shown in Figures 1 and 2: a kind of restriction 2 is provided with the fuel oil regulation pump 10 of flusher,
Including fuel oil regulation pump 10, restriction 2, pump oil pipe 101 and oil return pipe 102, fuel oil regulation pump 10 is by pump oil pipe 101 and throttling
The pouring orifice 201 in portion 2 is fixing to be connected, and oil return pipe 102 one end is fixing connects restriction 2, and the other end of oil return pipe 102 is fixing to be connected
Fuel oil regulation pump 10, is provided with low-pressure area 30, suction district 20 and slides up and down in low-pressure area 30 and suction district 20 in restriction 2
Regulation valve 202, regulation valve 202 upper end be arranged in suction district 20, regulation valve 202 lower end be arranged in low-pressure area 30,
Being provided with the cavity and hole slided for regulation valve 202 in suction district 20, the diameter in hole is less than cavity diameter, and the diameter in hole is less than regulation
Valve 202 upper end diameter, the regulation valve 202 being positioned at low-pressure area is provided with screens ring, and screens ring makes the position always, lower end of regulation valve 202
In low-pressure area 30, make the direction of the displacement of whole regulation valve 202 and size be restricted, make regulation valve 202 more controlled, regulation
Valve 202 upper end compresses pouring orifice 201 under the pressure effect of low-pressure area 30, and whole restriction 2 can be saved by the structure of machinery
Save fuel oil, utilize the pressure of fuel oil regulation pump 10 that the amount of the fuel oil in restriction 2 is controlled, it is not necessary to electronic component can be real
Existing sensitive pump oil, reduces fuel oil consumption.
Regulation valve 202 lower end is provided with atmospheric buffer device, includes cylinder barrel 301, pneumaticpiston in the middle of atmospheric buffer device
302 and piston rod 303, cylinder barrel 301 is fixedly mounted on the inwall of low-pressure area 30, and the gas in cylinder barrel 301 is helium, in regulation
After the lower end of valve 202 connects piston rod 303, just by the thrust of atmospheric buffer device, piston rod 303 and regulation valve 202
Reliable operation after connection, cylinder barrel 301 is arranged on the inwall of low-pressure area 30, the simple in construction of atmospheric buffer device, reliable operation,
When can realize moving back and forth, stable movement, it is possible to meet the needs regulating the buffering needed for valve 202.
Suction district 20 is provided with accumulator, oil-feed tank 203, spill port 204, oil-recovery tank 205 and oil outlet 206, oil-feed tank
203, oil-recovery tank 205 and oil outlet 206 are connected formation cavity entirety respectively with accumulator, and the opening of oil-feed tank 203 is near oiling
Mouth 201, it is simple to quick oil feeding, realizes the storage of oil mass by accumulator after oil-feed, fuel oil enters oil outlet by accumulator
206, when in whole oil circuit, oil mass is too much, oil-recovery tank 205 can be by unnecessary oil by spill port 204 and oil return pipe 102 times
In the middle of fuel oil regulation pump 10, whole circulation can regulate the oil in the middle of oil circuit by the pump oil pressure of fuel oil regulation pump 10
Amount, it is to avoid the waste of energy.
It is provided with flusher 50 repeatedly, repeatedly flusher 50 additionally, be correspondingly arranged at oil-feed tank 203 lower ending opening
Oil storing tube 501 opening is positioned at accumulator, and aperture position is positioned at the bottom surface of accumulator, and whole flusher repeatedly 50 is horizontal,
Thus can reduce the vertical height of whole throttling arrangement, save space, flusher 50 utilizes combustion in the course of the work repeatedly
The pump oil pressure of oil regulation pump 10, restriction 2 completes whole work when, it is possible to utilize the pressure of fuel oil itself to complete right
The flushing of oil-feed tank 203, it is to avoid oil-feed tank 203 is blocked.
Repeatedly include oil storing tube 501, control valve 502, piston 503 and spring 504, oil storing tube in the middle of flusher 50
501 are used for taking in fuel oil, and control valve 502 is arranged on before the compression,metal-to-metal position of piston 503, the unlatching of control valve 502 and
Closing and controlled by fuel oil regulation pump 10, piston 503 is connected with the spring 504 being fixed on oil storing tube 501 low order end, piston 503
Defining an energy storage device with spring 504, flusher 50 can control flushing opportunity by fuel oil regulation pump 10 repeatedly,
Realizing automatization, energy storage device can regulate the pressure that pump 10 transmits by Appropriate application fuel oil, and reverse oil flush avoids oil-feed
Groove 203 blocks, and also for oil circuit supplements fuel oil while being rinsed oil-feed tank 203 when opening fuel oil regulation pump 10.Select
The reason of spring 504 and piston 503 is, they can quickly tackle the change of oil pressure, also can quickly discharge bullet when rinsing
Spring 504, flushing effective.
In the present embodiment, during operation, when not opening fuel oil regulation pump 10, control valve 502 is closed, and regulates valve 202
Upper end closed pouring orifice 201 under the effect of atmospheric buffer device, after fuel oil regulation pump 10 is opened, in pump oil pipe 101
Fuel oil applies pressure, and regulation valve 202 is pressed downward against by oil pressure, makes regulation valve 202 produce axial displacement, and now atmospheric buffer device is worked as
In pressure start constantly to increase, simultaneously regulation valve 202 cavity in be constantly filled with fuel oil, regulation valve 202 displacement reach
The when of to the position of the oil-in of oil-feed tank 203, fuel oil is entered accumulator by oil-feed tank 203 and flusher 50 ought repeatedly
In, from oil-out to flowline, 401 arrive in the middle of fueling injection equipment 40, enter into combustion process.
During continuous oil-feed, the oil mass in the middle of accumulator increases, and oil pressure raises, oil pressure in the middle of flusher 50 repeatedly
Compression piston 503 and spring 504 after rising, after arriving the decrement that control valve 502 limits, control valve 502 is right after automatically opening up
Piston 503 carries out screens, by oil-recovery tank 205, fuel oil is discharged to oil return pipe 102 and is back to when oil mass in oil circuit is too much
In the middle of fuel oil regulation pump 10, when fuel oil in the middle of fueling injection equipment 40 is too much, return to after being connected with oil return pipe 102 by pipeline throttle
In the middle of portion 2 oil circuit, continue fuel oil and regulate pump 10 to restriction 2 again to the circulation of fueling injection equipment 40 from fuel oil.
After closing fuel oil regulation pump 10, the oil pressure in oil circuit diminishes gradually, and regulation valve 202 is at the pressure of atmospheric buffer device
Under effect, producing displacement and return to initial position, the upper end of regulation valve 202 compresses pouring orifice 201, and oil mass too much in oil circuit is passed through
Oil return pipe 102 returns in the middle of fuel oil regulation pump 10, the when that fuel oil regulation pump 10 now being again turned on, and can band brake control valve
502 open, and spring 504 and piston 503 are released, and are pushed in the middle of oil-feed tank 203 by the fuel oil in the middle of oil storing tube 501, to storage
Oil pipe 501 carries out back flush, and when from pouring orifice 201 oil-feed, fuel oil can carry out forward flushing to oil-feed tank 203, just again
The blocking of oil-feed tank 203 it is prevented under the interaction of back flush.
Above-described is only embodiments of the invention, and in scheme, the known general knowledge such as concrete structure and/or characteristic is at this
Too much describe.It should be pointed out that, for a person skilled in the art, on the premise of without departing from present configuration, also
May be made that some deformation and improvement, these also should be considered as protection scope of the present invention, and these are real all without affecting the present invention
The effect executed and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, description
In detailed description of the invention etc. record the content that may be used for explaining claim.
Claims (5)
1. restriction is provided with a fuel oil regulation pump for flusher, including fuel oil regulation pump, restriction, pump oil pipe and oil return
Pipe, described oil return pipe one end is fixing connects restriction, and the oil return pipe other end is fixing connects fuel oil regulation pump, it is characterised in that institute
Stating restriction and include low-pressure area, suction district and the regulation valve slided in low-pressure area and suction district, one end of described regulation valve sets
Putting in suction district, the other end of regulation valve is arranged in low-pressure area, is provided with accumulator, oil-feed tank, oiling in described suction district
Mouth, spill port, oil-recovery tank and oil outlet, described fuel oil regulation pump connects by pump oil pipe is fixing with the pouring orifice at restriction top
Connecing, it is overall, in described restriction that described oil-feed tank, oil-recovery tank, spill port connect formation cavity respectively with oil outlet with accumulator
It is provided with flusher repeatedly.
Restriction the most according to claim 1 is provided with the fuel oil regulation pump of flusher, it is characterised in that described regulation
Valve lower end is provided with buffer unit, and described buffer unit is atmospheric buffer device.
Restriction the most according to claim 2 is provided with the fuel oil regulation pump of flusher, it is characterised in that described air pressure
Buffer unit includes piston rod and cylinder barrel, and described piston rod upper end connects regulation valve, and described cylinder barrel is fixedly mounted on low-pressure area
On inwall.
Restriction the most according to claim 1 be provided with flusher fuel oil regulation pump, it is characterised in that described repeatedly
Flusher includes control valve, oil storing tube and the energy storage device being connected with control valve, and described control valve is with fuel oil regulation pump even
Connect, described oil storing tube one end connection oil-feed tank, the other end of oil storing tube is installed energy storage device.
Restriction the most according to claim 4 is provided with the fuel oil regulation pump of flusher, it is characterised in that described energy storage
Device is made up of spring and piston, and described spring one end connects oil storing tube inwall, and the other end of spring connects piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610732051.2A CN106321310A (en) | 2016-08-26 | 2016-08-26 | Fuel regulating pump with washing device on throttling portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610732051.2A CN106321310A (en) | 2016-08-26 | 2016-08-26 | Fuel regulating pump with washing device on throttling portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321310A true CN106321310A (en) | 2017-01-11 |
Family
ID=57790987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610732051.2A Pending CN106321310A (en) | 2016-08-26 | 2016-08-26 | Fuel regulating pump with washing device on throttling portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621869A (en) * | 2017-05-02 | 2019-12-27 | 德尔福知识产权有限公司 | Flushable low pressure regulator |
-
2016
- 2016-08-26 CN CN201610732051.2A patent/CN106321310A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621869A (en) * | 2017-05-02 | 2019-12-27 | 德尔福知识产权有限公司 | Flushable low pressure regulator |
| CN110621869B (en) * | 2017-05-02 | 2021-08-17 | 德尔福知识产权有限公司 | Flushable low pressure regulator |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |