CN109340006A - A kind of auxiliary fuel pump-regulating mechanism - Google Patents
A kind of auxiliary fuel pump-regulating mechanism Download PDFInfo
- Publication number
- CN109340006A CN109340006A CN201811392788.XA CN201811392788A CN109340006A CN 109340006 A CN109340006 A CN 109340006A CN 201811392788 A CN201811392788 A CN 201811392788A CN 109340006 A CN109340006 A CN 109340006A
- Authority
- CN
- China
- Prior art keywords
- oilhole
- pressure
- fuel
- spring
- valve
- 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.)
- Withdrawn
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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
- 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
- F02M59/12—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
-
- 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
Abstract
The present invention relates to a kind of auxiliary fuel pump-regulating mechanisms, include auxiliary fuel pump case (1), film (2), pressure-reducing chamber chamber lid (3), adjustment bar (4), adjustment nut (5), the first spring (6), the first spring base (7), pressure reducing valve, fuel feeding valve, second spring seat (10), second spring (11)；Structure is simple, and oil filling capacity is stronger under identical valve volume, advantageously reduces the power to weight ratio and energy loss of pump；Valve sealing surface is on end face, and the processing is simple.
Description
Technical field
The present invention relates to mechanical sensitive components, executive component, specially a kind of auxiliary fuel pump-regulating mechanism.
Background technique
The regulating mechanism of existing fuel pump is realized usually by way of check valve, by comparing before and after check valve
The size of difference force and spring force controls the opening of check valve, realizes the oil return of fuel pump, makes fuel pump outlet fuel pressure
Keep constant pressure or lower than a certain safe pressure value.This reducing valve function is simple, is only able to achieve single depressurization
Or other logical oil effects；Absolute pressure can only be controlled, can not consider the situation of change of fuel tank oil plane and external atmosphere pressure；It is identical
Oil filling capacity is poor in the case of volume, and flow resistance is larger；Seal form is linear sealing, requires have bright and clean sharp edge, light in use in bushing
Clean sharp edge is easy turned-down edge, reduces sealing effect.
Summary of the invention
The purpose of the present invention: designing a kind of auxiliary fuel pump-regulating mechanism, can be realized simultaneously when fuel tank oil plane height
Or when atmospheric pressure change export gauge pressure be basically unchanged, in engine start to start oil circuit fuel feeding, engine work
When to main fuel pump fuel feeding function.
Technical solution of the present invention: a kind of auxiliary fuel pump-regulating mechanism includes auxiliary fuel pump case (1), film
(2), pressure-reducing chamber chamber lid (3), adjustment bar (4), adjustment nut (5), the first spring (6), the first spring base (7), pressure reducing valve, oiling
Valve, second spring seat (10), second spring (11)；
Auxiliary fuel pump case is fixedly connected with pressure-reducing chamber chamber lid, and film setting is in auxiliary fuel pump case and decompression chamber
Between lid, air chamber is formed between film and pressure-reducing chamber chamber lid, the air chamber is communicated with external environment, adjustment bar, adjustment spiral shell
Cap, the first spring and the first spring base are co-axially located in air chamber, and reducing valve is fixed as one with film, first bullet
Spring setting is adjusted and is threadedly engaged between nut and pressure-reducing chamber chamber lid between adjustment nut and the first spring base, the first spring base
It is slidably matched with pressure-reducing chamber chamber lid,
Adjustment nut and pressure-reducing chamber chamber lid are provided with coaxial centre bore, and adjustment bar runs through the centre bore of pressure-reducing chamber chamber lid, adjusts
Whole screw rod is rotatably supported in the chamber lid of pressure-reducing chamber and cannot move axially, and adjustment bar adjusts bar through adjustment nut
It is rotated integrally with adjustment nut, adjustment nut can be slided up and down along adjustment bar；
Auxiliary fuel pump case is provided with the first oilhole, the second oilhole and Oil Guide access, first oilhole and the second oilhole
By Oil Guide access connection, pressure reducing valve and fuel feeding valve are arranged in Oil Guide access, and pressure reducing valve is by Oil Guide access from the first oilhole to the
Two oilhole one-way conductions, fuel feeding valve is by Oil Guide access from the second oilhole to the first oilhole one-way conduction.
Preferably, the pressure reducing valve and fuel feeding valve constitute combination valve, and the combination valve includes relief pressure valve cartridge (8), fuel feeding valve
Core (9), second spring and second spring seat；Relief pressure valve cartridge (8), oiling spool (9), second spring and second spring seat are coaxially set
It sets, in Oil Guide access, relief pressure valve cartridge has axle portion and radial extension, the radial extension for the setting of relief pressure valve cartridge sliding
It is provided with through-hole, in axle portion, second spring seat is fixed in axle portion the oiling valve core housing, and second spring is arranged in fuel feeding valve
Between core and second spring seat, second spring applies pretightning force to oiling spool and makes the logical of oiling spool enclosed radical extension
Hole, relief pressure valve cartridge are fixed as one with film.
Preferably, auxiliary fuel pump case is provided with guide groove, and axle portion and the guide groove of the relief pressure valve cartridge are slidably matched.
In engine start-up phase, auxiliary fuel air pump inoperative, auxiliary fuel pump inlet fuel pressure is greater than outlet fuel
Pressure, the fuel oil that previous stage fuel pump comes are flowed to by fuel oil when starting in attached drawing, and auxiliary fuel pumps the second oilhole and the first oilhole
Fuel oil pressure difference is greater than the power of second spring, and oiling spool (9) is pushed to move down, and Oil Guide access is oily from the second oilhole to first
Hole one-way conduction is realized in engine start to the function of start oil circuit fuel feeding.When engine work, auxiliary fuel pump
Start to work, auxiliary fuel pumps the second oilhole fuel pressure less than the first oilhole fuel pressure, auxiliary fuel pump the first oilhole with
The power of second oilhole fuel oil difference force and second spring is in the same direction, push oiling spool (9) move up, close from the second oilhole to
First oilhole one-way passage, the second oilhole fuel oil pump gyrator by auxiliary fuel and reach outlet to main fuel pump fuel feeding.
Combination valve experiences auxiliary fuel and pumps the first oilhole and the second oilhole fuel pressure, by the atmosphere of film (2) transmitting
The power of pressure, the first spring, totally 4 power.
Assuming that atmospheric pressure is constant, when fuel tank oil plane height reduces, auxiliary fuel pumps the second oilhole fuel pressure drop
Low, rotation rotor speed is constant, and the first oilhole fuel oil absolute pressure reduces, and gauge pressure also reduces, in the atmospheric pressure of film (2) transmitting
Under power, the effect of the power of the first spring, combination valve is moved down, and the first oilhole to the second oilhole passage sections product reduces, the first oil
Gauge pressure is of substantially equal before hole fuel oil gauge pressure is increased to the reduction of fuel tank oil plane height；On the contrary, when fuel tank oil plane height increases,
Auxiliary fuel pumps the second oilhole fuel pressure and increases, and rotation rotor speed is constant, and the first oilhole fuel pressure increases, and gauge pressure also rises
Height, under the first oilhole and the second oilhole fuel pressure comprehensive function, combination valve is moved up, and the first oilhole to the second oilhole is logical
Road sectional area increases, and gauge pressure is of substantially equal before the first oilhole fuel gauge pressure drop is increased down to fuel tank oil plane height, realizes when oil
The first oilhole gauge pressure is basically unchanged when case oil plane height change.
Assuming that fuel tank oil plane height is constant, when the atmospheric pressure falls, auxiliary fuel pumps the second oilhole fuel oil absolute pressure
Power is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure increases, and rotation rotor speed is constant, in the first oilhole and the second oilhole
Under fuel pressure effect, combination valve is moved up, and the first oilhole to the second oilhole passage sections product increases, the first oilhole fuel gauge
Pressure drop gauge pressure down to before reducing with atmospheric pressure is of substantially equal；On the contrary, auxiliary fuel pumps the second oilhole when atmospheric pressure increases
Fuel oil absolute pressure is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure reduces, and rotation rotor speed is constant, passes in film (2)
Under the power effect of the atmospheric pressure, the first spring passed, combination valve is moved down, and the first oilhole to the second oilhole passage sections product subtracts
Small, the first oilhole fuel oil gauge pressure is increased to before increasing with atmospheric pressure that gauge pressure is of substantially equal, realizes when atmospheric pressure change the
One oilhole gauge pressure is basically unchanged.
To sum up, the auxiliary fuel pump-regulating mechanism that the present invention designs realizes in engine start to start oil circuit fuel feeding,
In engine work to main fuel pump fuel feeding, the first oilhole gauge pressure when fuel tank oil plane height or atmospheric pressure change
The function being basically unchanged.
Beneficial effects of the present invention: structure is simple, and oil filling capacity is stronger under identical valve volume, advantageously reduces the function of pump
Again than and energy loss；Valve sealing surface is on end face, and the processing is simple.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram of another embodiment of the present invention；
Wherein: 1 auxiliary fuel pump case, 2 films, 3 pressure-reducing chamber chamber lids, 4 adjustment bars, 5 adjustment nuts, 6 first springs, 7
First spring base, 8 relief pressure valve cartridges, 9 oiling spools, 10 second spring seats, 11 second springs, 12 filler valves, 13 filler valves
Bushing, 14 third springs, 15 reducing valves.
Specific embodiment
As shown in Figure 1, auxiliary fuel pump-regulating mechanism of the invention includes auxiliary fuel pump case (1), film (2), subtracts
Pressure chamber chamber lid (3), adjustment bar (4), adjustment nut (5), the first spring (6), the first spring base (7), reducing valve (15), oiling
Valve.Wherein fuel feeding valve is made of filler valve (12), filler valve bushing (13), third spring (14).
In engine start-up phase, auxiliary fuel air pump inoperative, auxiliary fuel pumps the second oilhole fuel pressure and is greater than first
Oilhole fuel pressure, the fuel oil that previous stage fuel pump comes are flowed to by fuel oil when starting in Fig. 2, and auxiliary fuel pumps the second oilhole and the
One oilhole fuel oil pressure difference is greater than the power of third spring, and filler valve (12) is pushed to move right, by Oil Guide access from the second oilhole
To the first oilhole one-way conduction, realize in engine start to the function of start oil circuit fuel feeding.It is auxiliary when engine work
Combustion support fuel-oil pump is started to work, and auxiliary fuel pumps the second oilhole fuel pressure less than the first oilhole fuel pressure, auxiliary fuel pump the
One oilhole and the second oilhole fuel oil difference force and the power of third spring are in the same direction, push filler valve (12) be moved to the left, close from
Second oilhole to the first oilhole one-way passage, the second oilhole fuel oil pump gyrator by auxiliary fuel and reach outlet to main fuel pump
Fuel feeding.
Reducing valve experiences auxiliary fuel and pumps the first oilhole and the second oilhole fuel pressure, by the big of film (2) transmitting
The power of atmospheric pressure, the first spring, totally 4 power.
Assuming that atmospheric pressure is constant, when fuel tank oil plane height reduces, auxiliary fuel pumps the second oilhole fuel pressure drop
Low, rotation rotor speed is constant, and the first oilhole fuel oil absolute pressure reduces, and gauge pressure also reduces, in the atmospheric pressure of film (2) transmitting
Under power, the effect of the power of the first spring, reducing valve is moved down, and the first oilhole to the second oilhole passage sections product reduces, and first
Gauge pressure is of substantially equal before oilhole fuel oil gauge pressure is increased to the reduction of fuel tank oil plane height；On the contrary, when fuel tank oil plane height increases
When, auxiliary fuel pumps the second oilhole fuel pressure and increases, and rotation rotor speed is constant, and the first oilhole fuel pressure increases, gauge pressure
It increases, under the first oilhole and the second oilhole fuel pressure comprehensive function, reducing valve is moved up, the first oilhole to the second oil
Passage sections product in hole increases, and gauge pressure is of substantially equal before the first oilhole fuel gauge pressure drop is increased down to fuel tank oil plane height, realizes
When fuel tank oil plane height change, the first oilhole gauge pressure is basically unchanged.
Assuming that fuel tank oil plane height is constant, when the atmospheric pressure falls, auxiliary fuel pumps the second oilhole fuel oil absolute pressure
Power is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure increases, and rotation rotor speed is constant, in the first oilhole and the second oilhole
Under fuel pressure effect, reducing valve is moved up, and the first oilhole to the second oilhole passage sections product increases, the first oilhole fuel oil
Gauge pressure is reduced to gauge pressure before reducing with atmospheric pressure of substantially equal；On the contrary, when atmospheric pressure increases, the second oil of auxiliary fuel pump
Hole fuel oil absolute pressure is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure reduces, and rotation rotor speed is constant, in film (2)
The atmospheric pressure of transmitting, the first spring power effect under, reducing valve moves down, the first oilhole to the second oilhole passage sections
Product reduce, the first oilhole fuel oil gauge pressure be increased to atmospheric pressure increase before gauge pressure it is of substantially equal, realization work as atmospheric pressure change
When the first oilhole gauge pressure be basically unchanged.
As shown in Fig. 2, another embodiment of the present invention includes auxiliary fuel pump case (1), film (2), pressure-reducing chamber chamber lid
(3), adjust bar (4), adjustment nut (5), the first spring (6), the first spring base (7), relief pressure valve cartridge (8), oiling spool (9),
Second spring seat (10), second spring (11).
In engine start-up phase, auxiliary fuel air pump inoperative, auxiliary fuel pumps the second oilhole fuel pressure and is greater than first
Oilhole fuel pressure, the fuel oil that previous stage fuel pump comes are flowed to by fuel oil when starting in Fig. 1, and auxiliary fuel pumps the second oilhole and the
One oilhole fuel oil pressure difference be greater than second spring power, push oiling spool (9) move down, by Oil Guide access from the second oilhole to
First oilhole one-way conduction is realized in engine start to the function of start oil circuit fuel feeding.When engine work, auxiliary
Fuel pump is started to work, and auxiliary fuel pumps the second oilhole fuel pressure less than the first oilhole fuel pressure, auxiliary fuel pump first
Oilhole and the power of the second oilhole fuel oil difference force and second spring are in the same direction, and oiling spool (9) is pushed to move up, and close from second
To the first oilhole one-way passage, the second oilhole fuel oil by auxiliary fuel pumps gyrator and reaches outlet to be supplied oilhole to main fuel pump
Oil.
Combination valve experiences auxiliary fuel and pumps the first oilhole and the second oilhole fuel pressure, by the atmosphere of film (2) transmitting
The power of pressure, the first spring, totally 4 power.
Assuming that atmospheric pressure is constant, when fuel tank oil plane height reduces, auxiliary fuel pumps the second oilhole fuel pressure drop
Low, rotation rotor speed is constant, and the first oilhole fuel oil absolute pressure reduces, and gauge pressure also reduces, in the atmospheric pressure of film (2) transmitting
Under power, the effect of the power of the first spring, combination valve is moved down, and the first oilhole to the second oilhole passage sections product reduces, the first oil
Gauge pressure is of substantially equal before hole fuel oil gauge pressure is increased to the reduction of fuel tank oil plane height；On the contrary, when fuel tank oil plane height increases,
Auxiliary fuel pumps the second oilhole fuel pressure and increases, and rotation rotor speed is constant, and the first oilhole fuel pressure increases, and gauge pressure also rises
Height, under the first oilhole and the second oilhole fuel pressure comprehensive function, combination valve is moved up, and the first oilhole to the second oilhole is logical
Road sectional area increases, and gauge pressure is of substantially equal before the first oilhole fuel gauge pressure drop is increased down to fuel tank oil plane height, realizes when oil
The first oilhole gauge pressure is basically unchanged when case oil plane height change.
Assuming that fuel tank oil plane height is constant, when the atmospheric pressure falls, auxiliary fuel pumps the second oilhole fuel oil absolute pressure
Power is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure increases, and rotation rotor speed is constant, in the first oilhole and the second oilhole
Under fuel pressure effect, combination valve is moved up, and the first oilhole to the second oilhole passage sections product increases, the first oilhole fuel gauge
Pressure drop gauge pressure down to before reducing with atmospheric pressure is of substantially equal；On the contrary, auxiliary fuel pumps the second oilhole when atmospheric pressure increases
Fuel oil absolute pressure is constant, and the first oilhole fuel oil absolute pressure is constant, and gauge pressure reduces, and rotation rotor speed is constant, passes in film (2)
Under the power effect of the atmospheric pressure, the first spring passed, combination valve is moved down, and the first oilhole to the second oilhole passage sections product subtracts
Small, the first oilhole fuel oil gauge pressure is increased to before increasing with atmospheric pressure that gauge pressure is of substantially equal, realizes when atmospheric pressure change the
One oilhole gauge pressure is basically unchanged.
Claims (4)
1. a kind of auxiliary fuel pump-regulating mechanism includes auxiliary fuel pump case (1), film (2), pressure-reducing chamber chamber lid (3), adjustment
Bar (4), adjustment nut (5), the first spring (6), the first spring base (7), pressure reducing valve, fuel feeding valve, second spring seat (10), second
Spring (11)；
Auxiliary fuel pump case is fixedly connected with pressure-reducing chamber chamber lid, film setting auxiliary fuel pump case and pressure-reducing chamber chamber lid it
Between, air chamber is formed between film and pressure-reducing chamber chamber lid, the air chamber is communicated with external environment, adjustment bar, adjustment nut, the
One spring and the first spring base are co-axially located in air chamber, and reducing valve is fixed as one with film, and first spring is set
Set between adjustment nut and the first spring base, adjust and be threadedly engaged between nut and pressure-reducing chamber chamber lid, the first spring base with subtract
Pressure chamber chamber lid is slidably matched,
Adjustment nut and pressure-reducing chamber chamber lid are provided with coaxial centre bore, and adjustment bar runs through the centre bore of pressure-reducing chamber chamber lid, adjusts spiral shell
Bar is rotatably supported in the chamber lid of pressure-reducing chamber and cannot move axially, and adjustment bar adjusts bar and adjust through adjustment nut
Whole nut rotates integrally, and adjustment nut can be slided up and down along adjustment bar；
Auxiliary fuel pump case is provided with the first oilhole, the second oilhole and Oil Guide access, and first oilhole and the second oilhole are by leading
Oily access connection, pressure reducing valve and fuel feeding valve are arranged in Oil Guide access, and pressure reducing valve is oily from the first oilhole to second by Oil Guide access
Hole one-way conduction, fuel feeding valve is by Oil Guide access from the second oilhole to the first oilhole one-way conduction.
2. a kind of auxiliary fuel pump-regulating mechanism according to claim 1, it is characterized in that: the pressure reducing valve and fuel feeding valve structure
At combination valve, the combination valve includes relief pressure valve cartridge (8), oiling spool (9), second spring and second spring seat；Relief pressure valve cartridge
(8), oiling spool (9), second spring and second spring seat coaxial arrangement, relief pressure valve cartridge sliding setting in Oil Guide access,
Relief pressure valve cartridge has axle portion and radial extension, and the radial extension is provided with through-hole, and the oiling valve core housing is mounted in axle portion,
Second spring seat is fixed in axle portion, and second spring is arranged between oiling spool and second spring seat, and second spring is to oiling
Spool applies the through-hole that pretightning force makes oiling spool enclosed radical extension, and relief pressure valve cartridge is fixed as one with film.
3. a kind of auxiliary fuel pump-regulating mechanism according to claim 1, it is characterized in that: auxiliary fuel pump case, which is provided with, to be led
To slot, axle portion and the guide groove of the relief pressure valve cartridge are slidably matched.
4. a kind of application method of auxiliary fuel pump-regulating mechanism described in one of -3 according to claim 1, it is characterized in that: it is sending out
Engine start stage, auxiliary fuel air pump inoperative, auxiliary fuel pump inlet fuel pressure are greater than outlet fuel pressure, previous stage combustion
The fuel oil that oil pump comes is flowed to by fuel oil when starting in attached drawing, and auxiliary fuel pumps the second oilhole and the first oilhole fuel oil pressure difference greater than the
The power of two springs pushes oiling spool (9) to move down, real by Oil Guide access from the second oilhole to the first oilhole one-way conduction
To the function of start oil circuit fuel feeding when present engine start；When engine work, auxiliary fuel pump is started to work, auxiliary
Fuel pump the second oilhole fuel pressure pumps the first oilhole and the second oilhole fuel oil pressure less than the first oilhole fuel pressure, auxiliary fuel
The power of poor power and second spring is in the same direction, and oiling spool (9) is pushed to move up, and closing is unidirectionally led to from the second oilhole to the first oilhole
Road, the second oilhole fuel oil pump gyrator by auxiliary fuel and reach outlet to main fuel pump fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392788.XA CN109340006A (en) | 2018-11-21 | 2018-11-21 | A kind of auxiliary fuel pump-regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392788.XA CN109340006A (en) | 2018-11-21 | 2018-11-21 | A kind of auxiliary fuel pump-regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340006A true CN109340006A (en) | 2019-02-15 |
Family
ID=65316853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392788.XA Withdrawn CN109340006A (en) | 2018-11-21 | 2018-11-21 | A kind of auxiliary fuel pump-regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340006A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284039A (en) * | 1978-02-07 | 1981-08-18 | Edoardo Weber S.P.A. | Pressure regulator for injection systems for internal combustion engines |
| CN2066502U (en) * | 1990-03-22 | 1990-11-28 | 张秉君 | Combined petrol pressure adjuster |
| CN204344337U (en) * | 2014-12-25 | 2015-05-20 | 瑞安市百德机车部件有限公司 | With the pressure regulator valve of automobile fuel pump assembly destaticing mechanism |
| CN204572448U (en) * | 2015-03-04 | 2015-08-19 | 中国南方航空工业(集团)有限公司 | Motor and rotating plate pump |
| CN107905899A (en) * | 2017-12-18 | 2018-04-13 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of gas turbine fuel service system and its control method |
-
2018
- 2018-11-21 CN CN201811392788.XA patent/CN109340006A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284039A (en) * | 1978-02-07 | 1981-08-18 | Edoardo Weber S.P.A. | Pressure regulator for injection systems for internal combustion engines |
| CN2066502U (en) * | 1990-03-22 | 1990-11-28 | 张秉君 | Combined petrol pressure adjuster |
| CN204344337U (en) * | 2014-12-25 | 2015-05-20 | 瑞安市百德机车部件有限公司 | With the pressure regulator valve of automobile fuel pump assembly destaticing mechanism |
| CN204572448U (en) * | 2015-03-04 | 2015-08-19 | 中国南方航空工业(集团)有限公司 | Motor and rotating plate pump |
| CN107905899A (en) * | 2017-12-18 | 2018-04-13 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of gas turbine fuel service system and its control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Shuai Inventor after: Qiao Yun Inventor after: Wu Zhuangfeng Inventor after: Wang Changli Inventor after: Feng Yin Inventor after: Zan Yuhan Inventor before: Yang Shuai |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190215 |