CN109268180A - A kind of diesel electric-controlled high-pressure common rail oil feed pump - Google Patents
A kind of diesel electric-controlled high-pressure common rail oil feed pump Download PDFInfo
- Publication number
- CN109268180A CN109268180A CN201811239383.2A CN201811239383A CN109268180A CN 109268180 A CN109268180 A CN 109268180A CN 201811239383 A CN201811239383 A CN 201811239383A CN 109268180 A CN109268180 A CN 109268180A
- Authority
- CN
- China
- Prior art keywords
- oil
- plunger
- pump
- fuel
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 230000003019 stabilising effect Effects 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 91
- 239000000295 fuel oil Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
- 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
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
Abstract
A kind of diesel electric-controlled high-pressure common rail oil feed pump is made of camshaft, the aluminum pump housing, gear fuel supply pump, plunger bushing, plunger, tappet body, plunger spring, spring base, inlet valve, delivery valve, oil inlet attachment screw, solenoid valve with feeding pressure stabilizing device etc.；Camshaft is installed in the middle part of the pump housing, is axially followed successively by camshaft, end cap, the pump housing and gear fuel supply pump；Tappet body is contacted with the cam of camshaft, the tappet body other side and plunger contact；Camshaft rotation, driving tappet body, plunger pump, and complete the process of oil suction pump oil；Oil inlet attachment screw with feeding pressure stabilizing device is one check valve of increase on the basis of oil inlet screw, and when input pressure is excessive, stabilising arrangement is opened, oil inlet pressure release, to play the stable effect of pressure.
Description
Technical field
The present invention relates to diesel engine high-pressure co-rail fuel oil pump technical field, in particular to a kind of 40kW or less non-rice habitats diesel oil
The inexpensive Electrocontrolled high-pressure common rail oil feed pump of machine.
Background technique
It is required according to Air Pollution Prevention Law, from April 1st, 2016, stops manufacture, import and sale dress with the
The non-rice habitats mechanically moving of two-stage diesel engine, all manufactures, import and sale non-rice habitats mechanically moving should fill with meeting
The diesel engine that the standard phase III requires.World today's bavin is had become using high pressure common rail fuel injection system on a diesel engine
One of the Main Trends of The Development of oil machine technology.Stable high-pressure injection may be implemented not only with complete in high pressure common rail fuel injection system
Kind combustion process, can also be independently controlled injection characteristics, there is engine power performance, economy and emission performance greatly
Raising and improvement.
High-pressure common-rail fuel system specifically includes the components such as common rail pump, common rail pipe, fuel injector, ECU, sensor.Fuel oil from
Fuel tank inputs common rail pump through fuel filter, in plunger cavity pressurize after be sent in common rail pipe, the pressure in common rail pipe according to
The pressure adjustment signal control that ECU is issued, fuel oil are defeated by fuel injector through high-pressure oil pipe, fuel injector according to the instruction that ECU is issued with
Fuel oil is sprayed into the combustion chamber of diesel engine by suitable oil spout movement.Common rail pump is the excellent high-pressure common rail fuel oil spray of this environmental-protecting performance
The important composition component for penetrating system is able to achieve the rationalization control to common rail pressure.
The light duty diesel engine of the prior art is mostly mechanical pump, mechanical array oil spout pumping system jet pressure power is lower,
Fuel-flow control conversion is relatively slow when variable working condition and can not accurately control oil mass and injection time progress full working scope, causes matching
Diesel engine be unable to satisfy increasingly strict emission regulation demand.And common rail pump selling price is high, maintenance cost is higher, and oil product is suitable
Answering property is poor, there is the demand of more specific covering 40kw or so non-rice habitats use for diesel engine low cost common rail pump in the market.
Summary of the invention
The present invention provides a kind of diesel electric-controlled high-pressure common rail oil feed pump, including it is the aluminum pump housing, gear fuel supply pump, convex
Wheel shaft, pump oil component, tappet body, inlet valve, solenoid valve and delivery valve, the pump oil component include plunger bushing, plunger and plunger
Spring only opens up fuel oil oil duct in the aluminum pump housing；The plunger bushing is set to aluminum pump housing top；It further include bringing oil pressure into
The oil inlet attachment screw of power stabilising arrangement, the oil inlet attachment screw and inlet valve, solenoid valve are left with plunger bushing is highly set to
Right two sides open up fuel gallery in plunger bushing；Oil pressure stabilising arrangement, the oil pressure stabilising arrangement is arranged in the oil inlet attachment screw
It is made of steel ball, spring, back leakage connection and oil inlet screw, spring mounting hole is equipped in back leakage connection, sets steel ball in oil inlet screw
Sealing surface is screwed into oil inlet screw head side after being packed into spring and steel ball in back leakage connection jointly.
Further, the solenoid valve is fuel cut-off control mode, and the inlet valve is by oil inlet valve seat, oil inlet valve rod, magnet
Composition；Weld magnet on oil inlet valve rod, the magnet other side is solenoid valve, and the inlet valve is normally open, when solenoid valves,
Attract magnet dynamic to electromagnetism displaceable valve with oil inlet valve rod, closes oil inlet passage.
Further, the fuel oil enters plunger bushing the first fuel oil oil duct from oil inlet attachment screw, then passes through inlet valve
Oil duct in valve seat enters the second fuel oil of plunger bushing oil duct under oil inlet valve rod normally open, finally reaches plunger cavity；First combustion
Oil duct and the second fuel oil oil duct are evenly arranged with oil inlet attachment screw, inlet valve, solenoid valve coaxial line, and the first fuel oil oil duct is
2, the second fuel oil oil duct is 4.
Further, the camshaft is supported by both ends sliding bearing, and forced feed lubrication oil duct is equipped in the pump housing and is entered
Two side bearings, the sliding bearing use flanging type bearing, are the integrated sliding bearing with axial thrust, the brearing bore
Friction-Reducing Coating is designed with thrust surface.
Further, cam shaft mounting hole is opened up inside the connecting key of the gear fuel supply pump and camshaft, outside is
The keyway of same shape is arranged on gear for hexagram shape, can be caught in connecting key, and the connection key material is polyether-ether-ketone.
The present invention is to match 40KW or so non-rice habitats use for diesel engine low cost common rail demand pump on existing market and develop
's.Oil feed pump by camshaft, the aluminum pump housing, gear fuel supply pump, plunger bushing, plunger, tappet body, plunger spring, spring base, into
Oil valve, delivery valve, oil inlet attachment screw, solenoid valve with feeding pressure stabilizing device etc. form.
Camshaft is installed in the middle part of the pump housing, is axially followed successively by camshaft, end cap, the pump housing and gear fuel supply pump.Tappet body
It is contacted with the cam of camshaft, the tappet body other side and plunger contact.Camshaft rotation, driving tappet body, plunger are up and down reciprocatingly transported
It is dynamic, complete the process of oil suction pump oil.Oil inlet attachment screw with feeding pressure stabilizing device is to increase by one on the basis of oil inlet screw
A check valve, when input pressure is excessive, stabilising arrangement is opened, oil inlet pressure release, to play the stable effect of pressure.
Fuel-flow control conversion is very fast when the present invention sprays higher pressure, variable working condition and can carry out to oil mass and injection time
Full working scope accurately controls, and can satisfy increasingly strict emission regulation demand, and maintenance cost of the present invention is low, oil product adaptability
It is good.
Detailed description of the invention
Fig. 1 is radial section structural schematic diagram of the invention.
Fig. 2 is axial section structural schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of the oil inlet attachment screw of the invention with input pressure stabilising arrangement.
Fig. 4 is plunger fuel oil oil duct axial arrangement schematic diagram of the invention.
Fig. 5 is plunger fuel oil oil duct radial structure schematic diagram of the invention.
Specific embodiment
With reference to Fig. 1,2,3,4 and 5,
A kind of diesel electric-controlled high-pressure common rail oil feed pump, camshaft 3 are packed into 1 middle part of the aluminum pump housing, are axially followed successively by the pump housing 1, tooth
Wheeled oil transfer pump 2, cam position, the pump housing top from bottom to up successively install tappet body 5, plunger 42, plunger bushing 41.Plunger bushing
Installation oil inlet attachment screw 6 and inlet valve 7, the solenoid valve 8 of 41 left and right sides coaxial lines.Fuel oil passes through oil inlet attachment screw successively
By plunger bushing fuel gallery 10, oil inlet valve body oil duct 11, oil duct 12, plunger cavity 13 is entered.Plunger 42 drives in camshaft 3
Under movement is used, 13 internal combustion oil pressure of plunger cavity is gone out into delivery valve 9.Camshaft 3 is supported by both ends sliding bearing, is equipped in the pump housing 1 strong
Oil leab processed enters two side bearings, and sliding bearing is flanging type axial thrust integrated bearing, and brearing bore and thrust surface are equal
Design has Friction-Reducing Coating.By connection key connection, connecting key is board-like hexagram structure for camshaft 3 and gear fuel supply pump 2, in
The heart opens up cam shaft mounting hole, and outside is hexagram shape, has the keyway of same shape on gear, connecting key external card becomes owner of drive
Moving gear, internal and cam axis connection pass through camshaft and rotate transmitting torque drive gear rotation.
Claims (5)
1. a kind of diesel electric-controlled high-pressure common rail oil feed pump, including the aluminum pump housing (1), gear fuel supply pump (2), camshaft (3),
Pump oil component (4), tappet body (5), inlet valve (7), solenoid valve (8) and delivery valve (9), the pump oil component (4) includes plunger
(41), plunger (42) and plunger spring (43) are covered, only opens up fuel oil oil duct in the aluminum pump housing (1)；The plunger bushing (41)
It is set to the aluminum pump housing (1) top；It is characterized by also including the oil inlet attachment screw (6) with input pressure stabilising arrangement, institutes
State oil inlet attachment screw (6) and inlet valve (7), solenoid valve (8) is highly set to together at left and right sides of plunger bushing (41), plunger bushing
(41) fuel gallery is opened up in；Oil pressure stabilising arrangement is arranged in the oil inlet attachment screw (6), and the oil pressure stabilising arrangement is by steel ball
(61), spring (62), back leakage connection (63) and oil inlet screw (64) composition, back leakage connection (63) is interior to be equipped with spring mounting hole, into
Steel ball sealing face is set in whelk nail (64) is screwed into oil inlet screw (64) jointly after being packed into spring and steel ball in back leakage connection (63)
Head side.
2. a kind of diesel electric-controlled high-pressure common rail oil feed pump according to claim 1, it is characterised in that: the solenoid valve
It (8) is fuel cut-off control mode, the inlet valve (7) is made of oil inlet valve seat (71), oil inlet valve rod (72), magnet (73)；Oil inlet
Magnet (73) are welded on valve rod (72), magnet (73) other side is solenoid valve (8), and the inlet valve (7) is normally open, electromagnetism
When valve (8) is powered, attracts magnet (73) dynamic to electromagnetism displaceable valve with oil inlet valve rod (72), close oil inlet passage.
3. a kind of diesel electric-controlled high-pressure common rail oil feed pump according to claim 1, it is characterised in that: the fuel oil from into
Oily attachment screw (6) enters the first fuel oil of plunger bushing oil duct (10), then passes through the oil duct (11) in oil inlet valve base (71),
Enter the second fuel oil of plunger oil duct (12) under oil inlet valve rod (72) normally open, finally reaches plunger cavity (13)；First fuel oil oil
Road (10) and the second fuel oil oil duct (12) are evenly arranged with oil inlet attachment screw (6), inlet valve (7), solenoid valve (8) coaxial line,
First fuel oil oil duct (10) is 2, and the second fuel oil oil duct (12) is 4.
4. a kind of diesel electric-controlled high-pressure common rail oil feed pump according to claim 1 to 3, it is characterised in that: described convex
Wheel shaft (3) is supported by both ends sliding bearing, and forced feed lubrication oil duct is equipped in the pump housing (1) and enters two side bearings, the sliding
Bearing uses flanging type bearing, is the integrated sliding bearing with axial thrust, the brearing bore and thrust surface are designed with
Friction-Reducing Coating.
5. a kind of diesel electric-controlled high-pressure common rail oil feed pump according to claim 1 to 3, it is characterised in that: the tooth
Open up cam shaft mounting hole inside the connecting key of wheeled oil transfer pump (2) and camshaft (3), outside is hexagram shape, on gear
The keyway of same shape is set, connecting key can be caught in, the connection key material is polyether-ether-ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239383.2A CN109268180A (en) | 2018-10-23 | 2018-10-23 | A kind of diesel electric-controlled high-pressure common rail oil feed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239383.2A CN109268180A (en) | 2018-10-23 | 2018-10-23 | A kind of diesel electric-controlled high-pressure common rail oil feed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268180A true CN109268180A (en) | 2019-01-25 |
Family
ID=65193160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811239383.2A Pending CN109268180A (en) | 2018-10-23 | 2018-10-23 | A kind of diesel electric-controlled high-pressure common rail oil feed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268180A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723588A (en) * | 2019-02-28 | 2019-05-07 | 北油电控燃油喷射系统(天津)有限公司 | A kind of monomer high pressure fuel pump for common rail fuel injection system |
| CN114992082A (en) * | 2022-06-17 | 2022-09-02 | 徐州建科仪器有限公司 | Wireless control type full-automatic high-pressure pump station based on battery power supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010019594A (en) * | 1999-08-28 | 2001-03-15 | 박상록 | High pressure supply for fuel injection device |
| CN102102611A (en) * | 2011-03-14 | 2011-06-22 | 福建省莆田市中涵机动力有限公司 | In-line type fuel feed pump of high-pressure common rail system |
| CN202001162U (en) * | 2010-12-07 | 2011-10-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Oil-taking metering valve controlled common-rail oil feed pump |
| CN106121888A (en) * | 2016-08-26 | 2016-11-16 | 龙口龙泵燃油喷射有限公司 | Single cylinder high pressure co-rail diesel pump assembly for common rail system |
| CN209145751U (en) * | 2018-10-23 | 2019-07-23 | 思达耐精密机电（常熟）有限公司 | A kind of diesel electric-controlled high-pressure common rail oil feed pump |
-
2018
- 2018-10-23 CN CN201811239383.2A patent/CN109268180A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010019594A (en) * | 1999-08-28 | 2001-03-15 | 박상록 | High pressure supply for fuel injection device |
| CN202001162U (en) * | 2010-12-07 | 2011-10-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Oil-taking metering valve controlled common-rail oil feed pump |
| CN102102611A (en) * | 2011-03-14 | 2011-06-22 | 福建省莆田市中涵机动力有限公司 | In-line type fuel feed pump of high-pressure common rail system |
| CN106121888A (en) * | 2016-08-26 | 2016-11-16 | 龙口龙泵燃油喷射有限公司 | Single cylinder high pressure co-rail diesel pump assembly for common rail system |
| CN209145751U (en) * | 2018-10-23 | 2019-07-23 | 思达耐精密机电（常熟）有限公司 | A kind of diesel electric-controlled high-pressure common rail oil feed pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723588A (en) * | 2019-02-28 | 2019-05-07 | 北油电控燃油喷射系统(天津)有限公司 | A kind of monomer high pressure fuel pump for common rail fuel injection system |
| CN114992082A (en) * | 2022-06-17 | 2022-09-02 | 徐州建科仪器有限公司 | Wireless control type full-automatic high-pressure pump station based on battery power supply |
| CN114992082B (en) * | 2022-06-17 | 2024-01-12 | 徐州建科仪器有限公司 | Wireless control type full-automatic high-pressure pump station based on battery power supply |
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| PB01 | Publication | ||
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