CN102434344A - In-line synthesis type high-pressure oil supply pump control system - Google Patents
In-line synthesis type high-pressure oil supply pump control system Download PDFInfo
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- CN102434344A CN102434344A CN2011103945979A CN201110394597A CN102434344A CN 102434344 A CN102434344 A CN 102434344A CN 2011103945979 A CN2011103945979 A CN 2011103945979A CN 201110394597 A CN201110394597 A CN 201110394597A CN 102434344 A CN102434344 A CN 102434344A
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Abstract
The invention discloses an in-line synthesis type high-pressure oil supply pump control system which comprises an integral pump body, wherein the middle of a drive shaft is provided with cams matched with plunger pumps, and each plunger pump only supplies high-pressure oil to an electric control fuel injector. The in-line synthesis type high-pressure oil supply pump control system is characterized in that a part of a drive shaft, extending from an oil supply pump rear cover, is a rotor shaft, a circular hole of a signal regulating plate is matched with a column body on the oil supply pump rear cover, the signal regulating plate is provided with signal regulating plate end face sensor opposite to a rotor end face permanent magnet, a rotor pole iron detection sensor opposite to a rotor pole iron is arranged on a sensor bracket. An electronic control unit (ECU) receives signals from the rotor pole iron detection sensor and the signal regulating plate end face sensor which are connected with the ECU, and the processed signals are sent to the corresponding electric control fuel injector through a transmission line. The invention has the characteristics of simple structure, good generality, easiness in debugging, low cost and easiness in production, is especially suitable for application on an electric control diesel engine, and can also be applicable to other oil pumping fields.
Description
Technical field
The invention belongs to plunger oil pump technical field in upright arrangement, particularly a kind of direct combination type high-pressure oil feed pump control system is widely used in the multi-cylinder high-pressure electronic controlled diesel.
Background technique
On diesel engine, employed direct combination type Injection Pump has traditional mechanical formula and electric-controlled type at present.
The traditional mechanical in-line fuel injection pump mainly is made up of Injection Pump, speed regulator, fuel feeding advancing device etc.
Injection Pump is made up of the pump housing, pump oil mechanism, fuel-flow control mechanism and driving mechanism.The injection pressure of this Injection Pump is low, and the precision of control oil spout is low, and subsidiary body is many, complex structure, and cost of production is high, debug difficulties.There are Ratch type, fork type and pull-rod type in fuel-flow control mechanism, and for example Ratch type is formed by regulating gear ring, adjusting ratch, fuel feeding bar, plunger, plunger bushing etc.The complex structure of mechanical type oil amount regulating mechanism, high, the adjusting difficulty of requirement on machining accuracy, the precision of adjusting is low.
The kind of speed regulator is a lot, and common have mechanical speed governor, air film type speed regulator and a hydraulic speed governor.Wherein mechanical speed governor and hydraulic speed governor are catabiotic parts, and the energy that the ability to work of speed regulator consumes more by force is many more.Use maximum mechanical speed governors, of a great variety, complex structure, requirement on machining accuracy be high, the unusual difficulty of, debugging big to the performance impact of diesel engine.The ability to work of mechanical governor reduces rapidly with the decline of Injection Pump rotating speed, and this is particularly remarkable when diesel engine is idle.Therefore, this ability to work feature limits of speed regulator the reduction of the minimum stable engine speed during the diesel engine idling, diesel engine oil consumption when idling operation is increased.In addition, performance index such as the speed governing rate of mechanical speed governor, insensitiveness, speed fluctuation rate can not satisfy between modern diesel engine and the fuel control system and under each operating mode, to realize rationally and accurate coupling.
The fuel feeding advancing device adopts the centrifugal fuel feeding advancing device of mechanical type usually, and the form of the centrifugal fuel feeding advancing device of mechanical type is more, and common have pin formula, roller type and a double eccentric-pieces advancing device.The centrifugal fuel feeding advancing device of mechanical type is contained between fuel injection camshaft and the Diesel Driven axle, utilizes the interior flyball of advancing device to produce equilibrium relation centrifugal and spring force, changes the relative angle between the diaxon, to reach the purpose of regulating fuel supply advance angle.With the double eccentric-pieces advancing device is example, and its structure mainly is made up of drive plate (gear), driven disc (wheel hub), adjusting eccentric wheel, compensation eccentric wheel, driving pin, spring, flyball, driven disc (adjustment disk), flyball pin etc.The centrifugal fuel feeding advancing device of mechanical type can not change the angle of fuel feeding fully according to the variation of diesel engine speed and load, more can not under any circumstance guarantee to control accurately the beginning of injection of diesel engine.
Electric-controlled direct combination type Injection Pump kind is a lot, has been characterized in keeping the basic structure of traditional mechanical Injection Pump, through setting up control system that sensor, controller, final controlling element form the ratch stroke of pump in upright arrangement is carried out electronic control.Most typical sliding bush type electric control linearly arranged pump is on machinery Injection Pump in upright arrangement, to install relevant final controlling element additional, with the work of electronic controller (ECU) control final controlling element.Final controlling element is made up of the oil amount regulating mechanism (being electronic speed regulator) and the sliding bush type fuel injection timing controlling mechanism of band linear electromagnet, mainly is made up of plunger bushing, sliding sleeve, fuel-flow control ratch, plunger, fuel injection camshaft, linear electromagnet (fuel injection timing controlling mechanism) sliding sleeve adjusting axle, oil amount regulating mechanism (electronic speed regulator), ratch displacement transducer etc.Its main final controlling element is the linear electromagnet of band taper iron core; It directly is connected with the fuel-flow control ratch; The working principle that fuel delivery changes is still the same with mechanical direct combination type Injection Pump; Promptly realize through rotary plunger change control skewed slot and the relative position of spill port on circumference; Just the rotation of plunger is by the ratch displacement transducer actual ratch displacement signal to be passed to electronic controller (ECU), and linear electromagnet accepts that the signal pulling fuel-flow control ratch of electronic controller (ECU) realizes again.Fuel injection timing also is to produce signal by sensor to pass to electronic controller (ECU); The signal of accepting electronic controller (ECU) through linear electromagnet rotates the sliding sleeve axle; Spur the sliding sleeve motion again; Oil inlet hole on change sliding sleeve and the plunger and skewed slot change the plunger pretravel and the commencement of fuel supply at the relative position of short transverse, thereby realize the control of fuel injection timing.
Traditional mechanical direct combination type Injection Pump is compared with the electric-controlled direct combination type Injection Pump, electric-controlled direct combination type oil spout pump structure, the final controlling element of just forming with electronic speed regulator and fuel injection timing controlling mechanism; The mechanical governor and the mechanical centrifugal fuel feeding advancing device that have replaced mechanical direct combination type Injection Pump; The final controlling element of electric-controlled direct combination type Injection Pump, its structure is more complicated than mechanical governor and mechanical centrifugal fuel feeding advancing device, and technical requirements is higher; Produce more difficulty, cost is higher.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existing technology, a kind of direct combination type high-pressure oil feed pump control system is provided, this fuel feeding control system is simple in structure, technical requirements is low, cost is low, be easy to production, can be used for the multi-cylinder high-pressure electronic controlled diesel.
The present invention solves the technological scheme that its technical problem takes:
This kind direct combination type high-pressure oil feed pump control system; Comprise the integrated type pump housing, live axle is arranged on the integrated type pump housing through bearing and oil feed pump protecgulum, oil feed pump bonnet rotationally, and the live axle middle part is provided with the cam that matches with each plunger pump; Described each plunger pump only provides high pressure oil for electric-controlled fuel injector; It is characterized in that live axle confession oil pump rear lid extension is a rotor shaft, the circular port of Signal Regulation plate cooperates with cylindrical body on the oil feed pump bonnet; The Signal Regulation plate is provided with Signal Regulation plate end face sensor, and Signal Regulation plate upper end is fixedly connected a sensor stand, and described sensor stand is provided with rotor pole iron detecting sensor; The signal rotor body is fixed on the rotor shaft and is positioned at the below of rotor pole iron detecting sensor; The rotor pole iron identical with the cylinder of diesel engine number is set on the cylindrical of described signal rotor body, and described rotor pole iron is permanent magnet and matches with rotor pole iron detecting sensor; The signal rotor body is provided with a rotor end-face permanent magnet on the end face of pump housing end, this rotor end-face permanent magnet matches with Signal Regulation plate end face sensor; Electronic controller ECU accepts the coupled signal from rotor pole iron detecting sensor and Signal Regulation plate end face sensor, and the signal after will handling through transmission line sends to corresponding electric-controlled fuel injector.
Be connected with the oil feed pump bonnet with Signal Regulation plate clamping bolt through two adjustment holes on it at the Signal Regulation plate.Unclamp two clamping bolts on the fastening Signal Regulation plate, the turn signal regulator plate just can change the original time (or angle) that produces signal, thereby changes the injection time (or angle) of electric-controlled fuel injector.
The Signal Regulation plate end face sensor of described signal rotor body around rotor end-face permanent magnet that is provided with on the end face of the pump housing and Signal Regulation plate circular port is on a basic circle.
Sensor stand can be fixed on the Signal Regulation plate according to the purposes of diesel engine, also can be after on the Signal Regulation plate guide rod being set, and sensor stand is along the guide rod to-and-fro motion.
The said rotor shaft that is arranged on pump housing outer driving shaft rear end is a tapering axle, and least significant end is provided with screw thread, and rotor shaft passes the central through bore that is provided with in the oil feed pump bonnet, at tapered section the signal rotor body is installed, and the nut check of signal rotor body and function is on rotor shaft.
Described rotor pole iron is trapezoidal.
When crankshaft of diesel engine drives the rotation of oil feed pump live axle; The cam actuated plunger idol part pump oil that is located on the live axle arrives electric-controlled fuel injector; The rotor shaft that is located at the live axle rear end drives the rotation of signal rotor body; Rotor pole iron on rotor end-face permanent magnet on the signal rotor body end face and the external circle of signal rotor; When skimming over Signal Regulation plate end face sensor and the rotor pole iron detecting sensor on the Signal Regulation plate upper sensor support on the Signal Regulation plate respectively; These sensors will produce pulse signal and send into electronic controller (ECU) and handle, and the signal after electronic controller will be handled outputs to electric-controlled fuel injector, the injection process of control electric-controlled fuel injector.
The present invention structurally compares with the electric-controlled direct combination type Injection Pump with mechanical direct combination type Injection Pump, has following beneficial effect:
1, oil amount regulating mechanism, mechanical speed governor, the mechanical type fuel feeding advancing device of traditional mechanical direct combination type Injection Pump have been cancelled; Cancelled the electronic speed regulator of electric-controlled direct combination type Injection Pump and the final controlling element that the fuel injection timing controlling mechanism is formed, mechanism is simple, and volume is little, light weight, low cost of manufacture.
2, have generation, control and regulate the function of diesel engine run signal, the signal accuracy that is produced is high, true, reliable and be easy to regulate, and can directly be accepted by electronic controller (ECU).
3, be easy to debug, be easy to produce; Particularly can be used for the multi-cylinder electronic controlled diesel.
4, the present invention cooperates with inline plunger pump, not only makes high-pressure oil feed pump control system designs simplification, reliable operation, versatility good, and makes component processing method more simple, and the pump end pressure is greatly improved simultaneously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the partial view of Signal Regulation plate of the present invention, sensor stand and Sensor section;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is signal rotor body embodiment one plan view of the present invention;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is signal rotor body embodiment two plan views of the present invention;
Fig. 7 is the plan view of Fig. 6.
Among the figure: 1 is the integrated type pump housing, and 2 is live axle, and 3 is cam, and 4 is eccentric wheel; 5 is rotor shaft, and 23 is the Signal Regulation plate, and 24 is sensor stand, 25 rotor pole iron detecting sensors; 251 Signal Regulation plate end face sensors, 26 is rotor pole iron, 27 is the signal rotor body; 28 is the oil feed pump bonnet, 41 rotor end-face permanent magnets, 42 Signal Regulation plate clamping bolts.
Embodiment
Providing embodiments of the invention below in conjunction with accompanying drawing is elaborated.
Like Fig. 1; This kind direct combination type high-pressure oil feed pump control system; Comprise the integrated type pump housing 1; Live axle 2 is arranged on the integrated type pump housing through bearing and oil feed pump protecgulum, oil feed pump bonnet 28 rotationally, and the live axle middle part is provided with the cam 3 that matches with each plunger pump, and described each plunger pump only provides high pressure oil for electric-controlled fuel injector.
Like Fig. 1, Fig. 2, Fig. 3 live axle 2 confession oil pump rear lid 28 extensions is rotor shaft 5; The circular port of Signal Regulation plate 23 cooperates with cylindrical body on the oil feed pump bonnet 28, and Signal Regulation plate 23 is connected with oil feed pump bonnet 28 with Signal Regulation plate clamping bolt 42 through two adjustment holes on it.Unclamp two clamping bolts on the fastening Signal Regulation plate; Signal Regulation plate 23 can rotate on described cylindrical body; And turn signal regulator plate 23 just can change the original time (or angle) that produces signal, thereby changes the injection time (or angle) of electric-controlled fuel injector.
Like Fig. 1, sensor stand can be fixed on the Signal Regulation plate according to the purposes of diesel engine, also can be after on the Signal Regulation plate 23 guide rod being set, and sensor stand 24 is along the guide rod to-and-fro motion, and passes through spring reset.
Be not limited to discoidly like the shape of Fig. 4, Fig. 5 signal rotor body 27, can also take like Fig. 6, the described cross plate-like of Fig. 7.Described rotor pole iron 26 is trapezoidal, so that accurately control fuel feeding.
When crankshaft of diesel engine drives 2 rotations of oil feed pump live axle; The cam 3 drive plunger idol part pump oil that is located on the live axle arrives electric-controlled fuel injector; The rotor shaft 5 that is located at the live axle rear end drives 27 rotations of signal rotor body; Rotor pole iron 26 on rotor end-face permanent magnet on signal rotor body 27 end faces 41 and the external circle of signal rotor; When skimming over the rotor pole iron detecting sensor 25 on Signal Regulation plate end face sensor 251 and the Signal Regulation plate 23 upper sensor supports 24 on the Signal Regulation plate 23 respectively; These sensors will produce pulse signal and send into electronic controller (ECU) and handle, and the signal after electronic controller will be handled outputs to electric-controlled fuel injector, the injection process of control electric-controlled fuel injector.
That the present invention has is simple in structure, the pump end pressure high, versatility is good, be easy to debugging, cost is low, be easy to produce; On the high-pressure electric control diesel engine applicable to pump nozzle and common rail electric-controlled pattern; Except that particularly suitable is used, also can be adapted to other pump oil field on electronic controlled diesel.
Claims (6)
1. direct combination type high-pressure oil feed pump control system; Comprise the integrated type pump housing, live axle is arranged on the integrated type pump housing through bearing and oil feed pump protecgulum, oil feed pump bonnet rotationally, and the live axle middle part is provided with the cam that matches with each plunger pump; Described each plunger pump only provides high pressure oil for electric-controlled fuel injector; It is characterized in that live axle confession oil pump rear lid extension is a rotor shaft, the circular port of Signal Regulation plate cooperates with cylindrical body on the oil feed pump bonnet; The Signal Regulation plate is provided with Signal Regulation plate end face sensor, and Signal Regulation plate upper end is fixedly connected a sensor stand, and described sensor stand is provided with rotor pole iron detecting sensor; The signal rotor body is fixed on the rotor shaft and is positioned at the below of rotor pole iron detecting sensor; The rotor pole iron identical with the cylinder of diesel engine number is set on the cylindrical of described signal rotor body, and described rotor pole iron is permanent magnet and matches with rotor pole iron detecting sensor; The signal rotor body is provided with a rotor end-face permanent magnet on the end face of pump housing end, this rotor end-face permanent magnet matches with Signal Regulation plate end face sensor; Electronic controller ECU accepts the coupled signal from rotor pole iron detecting sensor and Signal Regulation plate end face sensor, and the signal after will handling through transmission line sends to corresponding electric-controlled fuel injector.
2. direct combination type high-pressure oil feed pump control system according to claim 1 is characterized in that, is connected with the oil feed pump bonnet with Signal Regulation plate clamping bolt through two adjustment holes on it at the Signal Regulation plate.
3. direct combination type high-pressure oil feed pump control system according to claim 1 and 2; It is characterized in that the Signal Regulation plate end face sensor of described signal rotor body around rotor end-face permanent magnet that is provided with on the end face of the pump housing and Signal Regulation plate circular port is on a basic circle.
4. direct combination type high-pressure oil feed pump control system according to claim 3 is characterized in that on the Signal Regulation plate, guide rod is set, sensor stand is along the guide rod to-and-fro motion.
5. direct combination type high-pressure oil feed pump control system according to claim 4 is characterized in that described rotor pole iron is trapezoidal.
6. direct combination type high-pressure oil feed pump control system according to claim 1; It is characterized in that; The said rotor shaft that is arranged on pump housing outer driving shaft rear end is a tapering axle, and least significant end is provided with screw thread, and rotor shaft passes the central through bore that is provided with in the oil feed pump bonnet; At tapered section the signal rotor body is installed, the nut check of signal rotor body and function is on rotor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103945979A CN102434344A (en) | 2011-12-02 | 2011-12-02 | In-line synthesis type high-pressure oil supply pump control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103945979A CN102434344A (en) | 2011-12-02 | 2011-12-02 | In-line synthesis type high-pressure oil supply pump control system |
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| CN102434344A true CN102434344A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103945979A Pending CN102434344A (en) | 2011-12-02 | 2011-12-02 | In-line synthesis type high-pressure oil supply pump control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437890A (en) * | 2013-08-28 | 2013-12-11 | 宁波富莱茵汽车部件有限公司 | Oil injection pump signal detection control mechanism and method |
| CN103498712A (en) * | 2013-09-21 | 2014-01-08 | 中国北方发动机研究所(天津) | Novel electronically controlled oil dripping pump of diesel engine |
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| US5070848A (en) * | 1989-03-27 | 1991-12-10 | Toyota Jidosha Kabushiki Kaisha | Device for controlling a fuel feed pump used for an engine |
| JP2000018052A (en) * | 1998-07-03 | 2000-01-18 | Denso Corp | Accumulator fuel injection device |
| CN2747374Y (en) * | 2004-12-03 | 2005-12-21 | 一拖（洛阳）燃油喷射有限公司 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
| CN201273223Y (en) * | 2008-09-23 | 2009-07-15 | 王浩国 | Electronic control apparatus for fuel of internal combustion engine |
| CN202325950U (en) * | 2011-12-02 | 2012-07-11 | 王晓燕 | Control system for in-line synthetic high-pressure oil supply pump |
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2011
- 2011-12-02 CN CN2011103945979A patent/CN102434344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070848A (en) * | 1989-03-27 | 1991-12-10 | Toyota Jidosha Kabushiki Kaisha | Device for controlling a fuel feed pump used for an engine |
| JP2000018052A (en) * | 1998-07-03 | 2000-01-18 | Denso Corp | Accumulator fuel injection device |
| CN2747374Y (en) * | 2004-12-03 | 2005-12-21 | 一拖（洛阳）燃油喷射有限公司 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
| CN201273223Y (en) * | 2008-09-23 | 2009-07-15 | 王浩国 | Electronic control apparatus for fuel of internal combustion engine |
| CN202325950U (en) * | 2011-12-02 | 2012-07-11 | 王晓燕 | Control system for in-line synthetic high-pressure oil supply pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437890A (en) * | 2013-08-28 | 2013-12-11 | 宁波富莱茵汽车部件有限公司 | Oil injection pump signal detection control mechanism and method |
| CN103437890B (en) * | 2013-08-28 | 2015-08-12 | 宁波富莱茵汽车部件有限公司 | Oil injection pump signal detection control mechanism and method |
| CN103498712A (en) * | 2013-09-21 | 2014-01-08 | 中国北方发动机研究所(天津) | Novel electronically controlled oil dripping pump of diesel engine |
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Application publication date: 20120502 |