CN101131140A - Electric-controlled direct combination type multi-cylinder fuel injection pump assembly - Google Patents
Electric-controlled direct combination type multi-cylinder fuel injection pump assembly Download PDFInfo
- Publication number
- CN101131140A CN101131140A CNA200710050006XA CN200710050006A CN101131140A CN 101131140 A CN101131140 A CN 101131140A CN A200710050006X A CNA200710050006X A CN A200710050006XA CN 200710050006 A CN200710050006 A CN 200710050006A CN 101131140 A CN101131140 A CN 101131140A
- Authority
- CN
- China
- Prior art keywords
- oil
- cylinder
- pump
- pump assembly
- tappet body
- 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
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention discloses one kind of electrically controlled in-line composite multicylinder oil injecting pump assembly for engine. The composite multicylinder oil injecting pump assembly has one integral pump box as the carrier and one low pressure oil transfer pump assembly to constitute one low pressure fuel oil circulating supply system; cylinders in-line mounted on the pump box to serve as the key assembly for producing high pressure fuel oil; electromagnets as driving sources, springs as restoring switches and plunger matching parts to form independent oil pumping units together with the cylinders; rotating cam shaft as the driving mechanism; etc. The present invention may be applied to replace traditional mechanical in-line composite multicylinder oil injecting pump assembly to raise the exhaust level of diesel engine.
Description
Technical field
The present invention relates to a kind of electric-controlled direct combination type multi-cylinder fuel injection pump assembly.
Background technique
The basic demand that diesel engine is supplied with oil-fired system is: regularly, quantitatively, high-pressure atomization.Traditional mechanical direct combination type multi-cylinder fuel injection pump assembly such as typical products: P type pump, the A type pump of German BOSCH company, the EP9 pump of Japan electric coating company, the P7 pumps of Austria FM company etc. can satisfy this basic demand of diesel engine after wearing extremely complicated mechanical formula speed regulator and mechanical centrifugal advancing device.
Along with the progress of society, energy-conservation and environmental protection becomes now and even the main subject of world's diesel technology development is from now on inscribed.Modern diesel engine was to the Economy that oil-fired system is supplied with, the requirement strictness day by day of emission performance, and China has begun to implement in full the Abgasgesetz in suitable Europe 3 on July 1st, 2007.。This just requires the fuel oil supply system Injection Pump to possess following characteristics:
1. higher jet pressure;
2. but the fuel injection quantity of Flexible Control;
3. but the injection timing of Flexible Control;
4. desirable injection rate waveform;
5. can realize that 1 ~ 2 time give sprayed and the back spray.
The traditional mechanical direct combination type multi-cylinder fuel injection pump assembly can't satisfy above-mentioned requirements.The fuel injection system product of being praised highly most in the world today is the CR high-pressure electric control common rail system of German BOSCH company; The U2 high-pressure electric control common rail system of Japan electric coating company.Though this kind system can both satisfy the requirement of modern diesel engine technology, their common feature be to oil product require highly, and be in the ultrahigh pressure state in the course of the work always, very harsh to seal request.And the existing oil conditions of China extremely difficulty satisfy this requirement, what more be difficult to break through is the requirement that China's existing processes level and machining ability all can't reach long-time superhigh pressure sealing.
Summary of the invention
The objective of the invention is: but but provide a kind of and do not change former diesel engine layout and can realize the injection timing of the fuel injection quantity Flexible Control of higher jet pressure Flexible Control, desirable injection rate waveform; Can realize that 1 ~ 2 time give sprayed and the electric-controlled direct combination type multi-cylinder fuel injection pump assembly of back spray.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of electric-controlled direct combination type multi-cylinder fuel injection pump assembly that is installed on the motor, comprise the low pressure oil transfer pump, pump box, the pump housing, plunger coupled parts, piston spring, the tappet body component of band roller, be arranged on the camshaft of pump housing bottom band driving cam, it is characterized in that: described pump box is the integrated type pump box, low pressure oil transfer pump assembly is installed on the integrated type pump box, described plunger coupled parts is the integrated type plunger coupled parts, the oil duct of plunger cavity upper end is set to the turnover common-use tunnel of fuel oil, the high-frequency electromagnetic control valve coupling that one control oil sprayer high pressure fuel is supplied with is set in turnover common-use tunnel upper end, described high-frequency electromagnetic control valve coupling comprises valve rod, armature, high-frequency electromagnetic valve and plug-in ECU, described valve rod one end and armature connect, and the conical surface termination of the other end and the valve opening end surface edge on pump housing top form linear sealing; The valve rod center line is also vertical mutually on same plane with the plunger center line, and the shared same pump housing of plunger coupled parts and Electromagnetic Control valve coupling is even part pair; The piston spring two ends are installed in respectively on the pump housing and the tappet body component; Plunger coupled parts, piston spring, high-frequency electromagnetic control valve coupling constitute independently pump oil unit.
Cam on the camshaft is corresponding one by one with each cylinder, phase signal generator be arranged between the two adjacent cylinder and with camshaft be an integral body.
Described integrated type pump box is the integral frame structure, with parallel plane two side box bodies of the common center of each cylinder on symmetric arrangement two low pressure oil ducts, described low pressure oil paths links to each other with low pressure oil transfer pump assembly by pipeline, and communicates with each cylinder body respectively by inclined hole.
The side of tappet body component is provided with that the plane of orientation place that departs from tappet body center line and a plane of orientation tappet body component vertical with the common center plane of each cylinder is also corresponding to be provided with a straight pin that is packed in the pump box casing pin-and-hole, described straight pin center line is perpendicular to the common center plane of each cylinder, and straight pin quantity equates with the cylinder number.
There is the tappet body to lead to the oil leab of roller towards roller pin and roller pin in the tappet body component.
Employing lug or flange are installed in this electric-controlled direct combination type multi-cylinder fuel injection pump assembly on the motor, owing to adopted the integrated type strengthening structure, the present invention can realize higher jet pressure, and P7100 is 105MPa, and this assembly can reach 140MPa; Supply with the fuel feeding switch owing to adopted the high-frequency electromagnetic valve under ECU control as control oil sprayer high pressure fuel, substitute the plunger skewed slot and added the mode that speed regulator is controlled, especially the valve opening end surface edge on the conical surface termination of the valve rod of high-frequency electromagnetic control valve coupling and pump housing top forms linear sealing, sealing effect is than face seal thereby better, but sensitive, easily control, the fuel injection quantity of the easier realization Flexible Control of switching capability accurately; Simultaneously can change fuel feeding flexibly constantly according to working condition requirement, but than the injection timing of the easier realization Flexible Control of the centrifugal advancing device of machinery; The speed of response that high-frequency electromagnetic valve is controlled makes the more approaching desirable fuel supply rate curve of oil-supply speed waveform; Can realize that according to working condition requirement 1 ~ 2 time give sprayed and the back spray under ECU control, this is that the traditional mechanical direct combination type multi-cylinder fuel injection pump assembly is difficult to realize.Two low pressure oil ducts are set, each cylinder oil inlet and oil return route shortens relatively, the low-pressure cavity capacity increases, the discharge that enters with high temperature oil and steam bubble oil of fresh fuel oil is improved greatly, can solve because the pump end pressure increases, cause a large amount of high temperature oil and bubble oil to enter the supply problem that the low pressure oil duct hinders the fresh fuel oil of next circuit.Between the adjacent cam of camshaft, be processed with independent phase signal fluted disc, for realizing that the Flexible Control injection timing provides fuel feeding phase signal accurately, overcome in existing electrical control oil spray pump scheme, obtaining of phase signal is arranged on the diesel engine, the flexibility ratio and the relatively poor problem of degree of accuracy that cause electrical control oil spray pump independently to be debugged.Cooperate the location at plane of orientation of the side of tappet body processing and with straight pin on being arranged on casing, and the position structure of the several cylinder of respective cylinder one pin, the rigidity of tappet body is greatly improved, tappet body deformability degree is improved greatly, and Location accuracy improves, locating effect is better, and processing and assembling difficulty reduce.The tappet body leads to roller towards roller pin and roller pin oil leab is set in tappet body component inside, lubricant oil can be entered between roller and the roller pin by oil leab from tappet body upper end form lubricant film, change the contact condition of kinematic pair, improved antiwear property greatly, also improved bearing capacity simultaneously.
Compare the Electrocontrolled high-pressure common rail system, the present invention still adopts traditional single cylinder pulse mode, and oil product is required to reduce and be in the instantaneous high pressure state, greatly reduces the requirement to the machining ability.And fully the same on performance with the Electrocontrolled high-pressure common rail system, reach the requirement of satisfying the modern diesel engine technology.
Description of drawings
Fig. 1 is the local vertical section structure schematic representation of the present invention.
Fig. 2 is Figure 1A-A sectional view.
Fig. 3 is Fig. 2 B-B sectional view.
Fig. 4 is a camshaft structure schematic representation of the present invention.
Fig. 5 is Fig. 4 C-C sectional view.
Fig. 6 is the structural representation of tappet body component of the present invention.
Fig. 7 is Fig. 6 D-D sectional view.
Fig. 8 is the generalized section of tappet body component.
Mark among the figure: 1 low pressure oil transfer pump assembly, 2 integrated type pump boxs, 3 pumps oil unit, 4 piston springs, 5 tappet body components, 6 rollers, 7 integrated type plunger coupled partss, 8 pump housings, 9 valve rods, 10 valve rod springs, 11 electromagnet, 12 armature, 13 cams, 14 straight pins, 15 camshafts, 16 phase signal generators, 17 connect the inclined hole of low pressure oil duct and each cylinder body, the fuel oil turnover common-use tunnel of 18 plunger cavities upper end, the valve opening end surface edge on 19 valve rod conical surface terminations and pump housing top forms linear sealing, 20 low pressure oil ducts, 21 roller pins, 22 valve rod center lines, the side of 23 tappet body components, the plane of orientation of 24 tappet body component sides, the common center plane of 25 each cylinder, 26 plunger center lines, 27 tappet body center lines, 28 tappet bodies, the oil leab between 29 tappet bodies and the roller pin, the oil leab between 30 roller pins and the roller.
Embodiment
Embodiment 4, as shown in Figure 8, further improve as embodiment 1,2,3, be provided with in the tappet body component 5 from tappet body 28 and lead to the oil leab 29 that roller pin 21 and roller pin lead to roller 6,30, pair roller and roller pin kinematic pair carry out effectively lubricating, reduce its mechanical wear, improve the working life of roller and roller pin, thereby prolong the working life of Injection Pump.
Claims (5)
1. electric-controlled direct combination type multi-cylinder fuel injection pump assembly that is installed on the motor, comprise the low pressure oil transfer pump, pump box, the pump housing (8), plunger coupled parts, piston spring (4), the tappet body component (5) of band roller (6), be arranged on the camshaft (15) of the band driving cam (13) of pump housing bottom, it is characterized in that: described pump box is integrated type pump box (2), low pressure oil transfer pump assembly (1) is installed on the integrated type pump box, described plunger coupled parts is integrated type plunger coupled parts (7), the oil duct of plunger cavity upper end is set to the turnover common-use tunnel (18) of fuel oil, the high-frequency electromagnetic control valve coupling that one control oil sprayer high pressure fuel is supplied with is set in turnover common-use tunnel upper end, described high-frequency electromagnetic control valve coupling comprises valve rod (9), armature (12), high-frequency electromagnetic valve (11) and plug-in ECU, described valve rod one end and armature connect, and the conical surface termination of the other end and the valve opening end surface edge on pump housing top form linear sealing (19); Valve rod center line (22) is also vertical mutually on same plane with plunger center line (26), and plunger coupled parts (7) is even part pair with the shared same pump housing of Electromagnetic Control valve coupling; Piston spring (4) two ends are installed in respectively on the pump housing (8) and the tappet body component (5); Plunger coupled parts, piston spring, high-frequency electromagnetic control valve coupling constitute independently pump oil unit (3).
2. electric-controlled direct combination type multi-cylinder fuel injection pump assembly as claimed in claim 1 is characterized in that: the cam (13) on the camshaft (15) is corresponding one by one with each cylinder, phase signal generator (16) be arranged between the two adjacent cylinder and with camshaft be an integral body.
3. electric-controlled direct combination type multi-cylinder fuel injection pump assembly as claimed in claim 1 or 2, it is characterized in that: described integrated type pump box (2) is the integral frame structure, on two side box bodies parallel with the common center plane (25) of each cylinder symmetric arrangement two low pressure oil ducts (20), described low pressure oil paths links to each other with low pressure oil transfer pump assembly (1) by pipeline, and communicates with each cylinder body respectively by inclined hole (17).
4. electric-controlled direct combination type multi-cylinder fuel injection pump assembly as claimed in claim 3 is characterized in that: the side of tappet body component (23) are provided with and depart from tappet body center line (27) and a plane of orientation (24) vertical with the common center plane (25) of each cylinder; The plane of orientation of tappet body component (24) is located to go back correspondence a straight pin (14) that is packed in pump box (2) the casing pin-and-hole is set, and described straight pin center line is perpendicular to the common center plane (25) of each cylinder, and straight pin quantity equates with the cylinder number.
5. as claim 1,2,3 or 4 described electric-controlled direct combination type multi-cylinder fuel injection pump assemblies, it is characterized in that: have tappet body (28) to lead to roller pin (21) and the oil leab (29,30) of roller pin in the tappet body component (5) towards roller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710050006XA CN101131140A (en) | 2007-09-13 | 2007-09-13 | Electric-controlled direct combination type multi-cylinder fuel injection pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710050006XA CN101131140A (en) | 2007-09-13 | 2007-09-13 | Electric-controlled direct combination type multi-cylinder fuel injection pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101131140A true CN101131140A (en) | 2008-02-27 |
Family
ID=39128514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710050006XA Pending CN101131140A (en) | 2007-09-13 | 2007-09-13 | Electric-controlled direct combination type multi-cylinder fuel injection pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131140A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922391A (en) * | 2010-08-23 | 2010-12-22 | 亚新科南岳（衡阳）有限公司 | Fuel jet electronic combination unit pump of diesel engine |
| CN102506000A (en) * | 2011-12-31 | 2012-06-20 | 中国兵器工业集团第七○研究所 | Pressure lubricating integral barrel-shaped tappet device |
| CN103410643A (en) * | 2013-07-19 | 2013-11-27 | 龙口龙泵燃油喷射有限公司 | Electronic unit composite pump for light-vehicle diesels |
| CN104533680A (en) * | 2014-12-30 | 2015-04-22 | 南岳电控(衡阳)工业技术有限公司 | Multiple-cylinder high pressure fuel feed pump for high pressure common rail fuel injection system |
| CN105332837A (en) * | 2015-11-04 | 2016-02-17 | 中国北方发动机研究所(天津) | Module type high-pressure common rail variable pump |
| CN109268181A (en) * | 2018-10-23 | 2019-01-25 | 思达耐精密机电（常熟）有限公司 | A kind of Electrocontrolled high-pressure common rail oil feed pump of four cylinder diameter to arrangement |
| WO2021088324A1 (en) * | 2019-11-08 | 2021-05-14 | 重庆红江机械有限责任公司 | Multi-cylinder combined high-pressure oil pump of marine low-speed machine |
| GB2594544A (en) * | 2019-11-08 | 2021-11-03 | Chongqing hongjiang machinery co ltd | Multi-cylinder combined high-pressure oil pump of marine low-speed machine |
-
2007
- 2007-09-13 CN CNA200710050006XA patent/CN101131140A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922391A (en) * | 2010-08-23 | 2010-12-22 | 亚新科南岳（衡阳）有限公司 | Fuel jet electronic combination unit pump of diesel engine |
| CN102506000A (en) * | 2011-12-31 | 2012-06-20 | 中国兵器工业集团第七○研究所 | Pressure lubricating integral barrel-shaped tappet device |
| CN103410643A (en) * | 2013-07-19 | 2013-11-27 | 龙口龙泵燃油喷射有限公司 | Electronic unit composite pump for light-vehicle diesels |
| CN103410643B (en) * | 2013-07-19 | 2015-12-09 | 龙口龙泵燃油喷射有限公司 | A kind of diesel engine for light vehicle electronic combination unit pump |
| CN104533680A (en) * | 2014-12-30 | 2015-04-22 | 南岳电控(衡阳)工业技术有限公司 | Multiple-cylinder high pressure fuel feed pump for high pressure common rail fuel injection system |
| CN105332837A (en) * | 2015-11-04 | 2016-02-17 | 中国北方发动机研究所(天津) | Module type high-pressure common rail variable pump |
| CN105332837B (en) * | 2015-11-04 | 2018-01-19 | 中国北方发动机研究所(天津) | A kind of modular high-pressure common rail variable pump |
| CN109268181A (en) * | 2018-10-23 | 2019-01-25 | 思达耐精密机电（常熟）有限公司 | A kind of Electrocontrolled high-pressure common rail oil feed pump of four cylinder diameter to arrangement |
| WO2021088324A1 (en) * | 2019-11-08 | 2021-05-14 | 重庆红江机械有限责任公司 | Multi-cylinder combined high-pressure oil pump of marine low-speed machine |
| GB2594544A (en) * | 2019-11-08 | 2021-11-03 | Chongqing hongjiang machinery co ltd | Multi-cylinder combined high-pressure oil pump of marine low-speed machine |
| GB2594544B (en) * | 2019-11-08 | 2023-07-19 | Chongqing hongjiang machinery co ltd | Multi-cylinder combined high-pressure oil pump for marine low-speed engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101131140A (en) | Electric-controlled direct combination type multi-cylinder fuel injection pump assembly | |
| EP2661548A1 (en) | Cylinder head cover module with integrated valve train | |
| CN103184960A (en) | Marine electromagnetically-controlled heavy oil injector | |
| CN101619663B (en) | Distribution cam mechanism of two-stroke and four-stroke switching internal-combustion engine | |
| CN102155272B (en) | Control oil way of variable valve timing device | |
| CN103244285B (en) | Use the control of the motor of initiatively fuel management | |
| CN201092919Y (en) | Lubrication mechanism of stiff pole for fuel injection pump | |
| CN201092917Y (en) | Electric control array synthesis type multi-cylinder fuel injection pump assembly | |
| CN105317491A (en) | Engine rocker arm shaft seat assembly and engine braking system | |
| CN101196127B (en) | Camshaft bearing cover of engine | |
| CN205101056U (en) | Camshaft bearing lid and car | |
| CN209277963U (en) | A kind of large and medium-sized use for diesel engine sectional camshaft component | |
| CN209277964U (en) | A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding | |
| US10927715B2 (en) | Valvetrain pivot stand assembly having multifunctional cap | |
| CN201221424Y (en) | Straight arranging type high-pressure pump for common rail system | |
| CN103016335B (en) | The petrolic lubricating oil way of high-pressure oil pump of a kind of straight spray | |
| CN109488402A (en) | A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding | |
| CN101886583A (en) | Variable valve timing engine cylinder cover | |
| CN2588069Y (en) | Electric controlled multi-cylinder straight-arranged fuel-enjection pump | |
| CN106321274A (en) | Cylinder cover oil path structure, cylinder cover and engine | |
| CN202914149U (en) | Bearing cover of camshaft of engine | |
| CN204200298U (en) | A kind of motor electrolyte type variable valve actuation mechanism having cam | |
| CN203783664U (en) | Cam shaft for diesel engine | |
| KR101756720B1 (en) | Valve Control Apparatus | |
| CN216811864U (en) | Piston cooling nozzle assembly and V-shaped engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080227 |