CN212774566U - Automatically controlled monoblock pump control structure - Google Patents
Automatically controlled monoblock pump control structure Download PDFInfo
- Publication number
- CN212774566U CN212774566U CN201922464064.8U CN201922464064U CN212774566U CN 212774566 U CN212774566 U CN 212774566U CN 201922464064 U CN201922464064 U CN 201922464064U CN 212774566 U CN212774566 U CN 212774566U
- Authority
- CN
- China
- Prior art keywords
- valve
- hole
- oil
- mounting hole
- plunger
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims description 96
- 239000000295 fuel oil Substances 0.000 claims description 20
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 7
- 238000013016 damping Methods 0.000 abstract 3
- 239000000446 fuel Substances 0.000 description 16
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an automatically controlled monoblock pump control structure, including the monoblock pump body and plunger valve part, the injection valve part, surge valve part and solenoid valve part, be provided with the plunger chamber in the monoblock pump body, advance the oil gallery, the oil spout, the surge damping oilhole, the plunger oilhole, injection valve part mounting hole, surge damping valve part mounting hole and solenoid valve part mounting hole, its plunger chamber, the plunger oilhole, the oil spout, same axis and surge damping valve part mounting hole that the injection valve part mounting hole was located, the surge oilhole, advance the same axis mutually perpendicular of oil gallery department and be parallel to each other with the axis of solenoid valve part mounting hole, it link up with solenoid valve part mounting hole perpendicularly to advance the oil gallery. Utility model moves the solenoid valve part to the position that the pump body does not coincide with the axis of plunger valve part to make the central axis of solenoid valve part parallel with the central line of plunger valve part, solved the problem that traditional automatically controlled valve control structure and engine installation interfere, can guarantee the performance requirement simultaneously again.
Description
Technical Field
The utility model relates to an automatically controlled monoblock pump technical field, in particular to automatically controlled monoblock pump control structure.
Background
In order to meet the increasingly strict emission standard of diesel engines, domestic diesel engine manufacturers increasingly adopt various electric control fuel systems to research and develop the diesel engines. The diesel engine selects a common rail, a pump nozzle and other fuel systems, and the structure, strength, reliability and the like of most components of the existing diesel engine need to be evaluated and designed again to meet the requirements of installation of the fuel system, high injection pressure, high explosion pressure and the like, and the diesel engine has long development period and high development cost. The fuel oil system adopting the electric control monoblock pump is slightly modified on the basis of the diesel engine, so that the emission standard of the diesel engine can be met. The fuel injection device which is designed and developed to be well matched with the novel diesel engine and meets the installation, performance and emission requirements of the novel diesel engine is an objective requirement in the market. Based on this kind of background, this applicant produces a monoblock pump at present under the prerequisite of guaranteeing engine mounting structure, for avoiding the installation to interfere, utility model discloses an automatically controlled monoblock pump that control structure such as monoblock pump solenoid valve is different with traditional structure has realized the installation of engine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that current monoblock fuel injection pump adopted traditional automatically controlled valve control structure and engine installation to interfere and provide an automatically controlled monoblock pump control structure, its performance requirement that can guarantee the monoblock pump again simultaneously.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
an electric control monoblock pump control structure comprises a monoblock pump body, a plunger valve component, an oil injection valve component, a pressure stabilizing valve component and an electromagnetic valve component, wherein a plunger cavity, an oil inlet and return hole, an oil injection hole, a pressure stabilizing oil hole, a plunger oil hole, an oil injection valve component mounting hole, a pressure stabilizing valve component mounting hole and an electromagnetic valve component mounting hole are arranged in the monoblock pump body, the plunger cavity is coaxial and sequentially communicated with the plunger oil hole, the oil injection hole and the oil injection valve component mounting hole, a plunger in the plunger valve component is arranged in the plunger cavity in a sliding mode, the oil injection valve component is mounted in the oil injection valve component mounting hole, the pressure stabilizing valve component is mounted in the pressure stabilizing valve component mounting hole, and the electromagnetic; the plunger piston oil hole and the plunger piston oil hole are communicated with the oil injection hole, the same axis of the plunger piston cavity, the same axis of the plunger piston oil hole, the same axis of the oil injection hole and the same axis of the oil injection valve part mounting hole are perpendicular to each other and parallel to the axis of the electromagnetic valve part mounting hole, and the oil inlet and return holes are vertically communicated with the electromagnetic valve part mounting hole.
In a preferred embodiment of the present invention, the electromagnetic valve component includes an electromagnetic valve spring, an electromagnetic valve spring retainer ring, an electromagnetic valve spring seat, an electromagnetic valve nut, a sealing O-ring, an armature, an adjusting washer, an electromagnetic valve component, a screw, a lock nut, a stopper, a valve seat, and a valve core, the electromagnetic valve component is press-fitted in the electromagnetic valve component mounting hole through the electromagnetic valve nut, the sealing O-ring is disposed between the electromagnetic valve component and the electromagnetic valve component mounting hole, and the adjusting washer is disposed between the electromagnetic valve component and a step surface in the electromagnetic valve component mounting hole; the armature is fixed on the upper end face of the valve core through the screw, the electromagnetic valve spring retainer ring is fixed on the upper portion of the valve core, the valve seat is arranged in the electromagnetic valve component mounting hole in an interference fit mode, a valve core hole, an oil inlet and return channel and a communication oil hole are formed in the valve seat, two ends of the oil inlet and return channel are respectively communicated with the oil inlet and return hole and the valve core hole, the valve seat divides the electromagnetic valve component mounting hole into a fuel oil inlet cavity and a fuel oil return cavity, the fuel oil inlet cavity is located below the valve seat, the fuel oil return cavity is located below the valve seat, and the fuel oil inlet cavity is communicated with the fuel oil return cavity through the communication oil hole; the middle lower part of the valve core is arranged in a valve core hole of the valve seat in a sliding mode through a fit clearance, the electromagnetic valve spring is sleeved on the middle upper part of the valve core, the upper end of the electromagnetic valve spring acts on the electromagnetic valve spring retaining ring, and the lower end of the electromagnetic valve spring acts on the upper end face of the valve seat; the check block is locked at the lower part of the electromagnetic valve component mounting hole through the locking nut, and the bottom of the valve core is contacted with the top surface of the check block; an oil inlet conical surface gap is arranged between the bottom of the valve core and the bottom of the valve core hole.
In a preferred embodiment of the present invention, the oil inlet conical surface gap is 0.2 mm.
Since the technical scheme as above is used, the utility model discloses move the solenoid valve part to the pump body not with the position of the axis coincidence of plunger valve part to make the central axis of solenoid valve part and the central line of plunger valve part parallel, solved the problem that traditional automatically controlled valve control structure and engine installation interfere, can guarantee the performance requirement of monoblock pump simultaneously again.
Drawings
Fig. 1 is a schematic structural view of the electric control monoblock pump of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Detailed Description
The invention is further described below with reference to the drawings and examples, but the invention is not limited thereby within the scope of the described examples.
Referring to fig. 1 and 2, the electric control monoblock pump control structure shown in the figure comprises a monoblock pump body 1, plunger valve components, an oil injection valve component 17, a pressure maintaining valve component 18 and electromagnetic valve components.
The plunger valve component comprises a plunger 16, a plunger spring 13 and a plunger spring seat 14, the plunger spring seat 14 is fixed at the bottom of the plunger 16, the plunger spring 13 is sleeved on the plunger 16, the upper end of the plunger spring 13 acts on the pump body 1, and the lower end of the plunger spring 13 acts on the plunger spring seat 14.
A plunger cavity 19, an oil inlet and return hole 20, an oil injection hole 21, a pressure stabilizing oil hole 22, a plunger oil hole 23, an oil injection valve component mounting hole 24, a pressure stabilizing valve component mounting hole 25 and an electromagnetic valve component mounting hole 26 are arranged in a single pump body 1, the plunger cavity 19 is coaxial and sequentially communicated with the plunger oil hole 23, the oil injection hole 21 and the oil injection valve component mounting hole 24, the middle upper part of a plunger 16 in a plunger valve component is arranged in the plunger cavity 19 in a sliding mode, an oil injection valve component 17 is arranged in the oil injection valve component mounting hole 24, and the pressure stabilizing valve component 18 is arranged in the pressure stabilizing valve component mounting hole 25.
The utility model is characterized in that: the pressure stabilizing valve component mounting hole 25 is coaxial with the pressure stabilizing oil hole 22 and the oil inlet and return hole 20 and is sequentially communicated with each other, the pressure stabilizing oil hole 22 and the oil inlet and return hole 20 are also communicated with the plunger oil hole 23 and the oil injection hole 21, the same axis where the plunger cavity 19, the plunger oil hole 23, the oil injection hole 21 and the oil injection valve component mounting hole 24 are located is perpendicular to the same axis where the pressure stabilizing valve component mounting hole 25, the pressure stabilizing oil hole 22 and the oil inlet and return hole 20 are located and parallel to the axis of the electromagnetic valve component mounting hole 26, and the oil inlet and return hole 20 is vertically communicated with the electromagnetic valve component mounting hole 26.
The electromagnetic valve component comprises an electromagnetic valve spring 2, an electromagnetic valve spring retainer ring 3, an electromagnetic valve spring seat 4, an electromagnetic tightening cap 5, a sealing O-shaped ring 6, an armature 7, an adjusting washer 8, an electromagnetic valve component 9, a screw 10, a locking nut 11, a stop block 12, a valve seat 27 and a valve core 15.
The electromagnet part 9 is pressed in the electromagnet valve part mounting hole 26 through the electromagnet locking cap 5, a sealing O-shaped ring 6 is arranged between the electromagnet part 9 and the electromagnet valve part mounting hole 26, and an adjusting gasket 8 is arranged between the electromagnet part 9 and a step surface 28 in the electromagnet valve part mounting hole 26.
The armature 7 is fixed on the upper end face of the valve core 15 through a screw 10, and the electromagnetic valve spring retainer ring 3 is fixed on the upper part of the valve core 15.
The valve seat 27 is assembled in the electromagnetic valve component mounting hole 26 in an interference fit mode, a valve core hole 29, an oil inlet and return channel 30 and a communication oil hole 31 are formed in the valve seat 27, two ends of the oil inlet and return channel 30 are respectively communicated with the oil inlet and return hole 20 and the valve core hole 29, the valve seat 27 divides the electromagnetic valve component mounting hole 26 into a fuel oil inlet cavity 32 and a fuel oil return cavity 33, the fuel oil inlet cavity 32 is located below the valve seat 27, the fuel oil return cavity 33 is located below the valve seat 27, and the fuel oil inlet cavity 32 is communicated with the fuel oil return cavity 33 through the communication oil hole 31.
The middle lower part of the valve core 15 is arranged in the valve core hole 29 of the valve seat 27 in a sliding mode through a matching gap, the electromagnetic valve spring 2 is sleeved on the middle upper part of the valve core 15, the upper end of the electromagnetic valve spring 2 acts on the electromagnetic valve spring retainer ring 3, and the lower end of the electromagnetic valve spring 2 acts on the upper end face of the valve seat 15.
The stopper 12 is locked at the lower part of the electromagnetic valve component mounting hole 26 through a lock nut 11, and the bottom of the valve core 15 is contacted with the top surface of the stopper 12; an oil inlet conical surface gap 34 is arranged between the bottom of the valve core 15 and the bottom of the valve core hole 29, and the oil inlet conical surface gap 34 is 0.2 mm.
The working principle of the utility model is as follows:
the injection pump supplies fuel to the injector at a sufficiently high pressure, a process of sucking and pressing the oil, which is performed by the reciprocating movement of the plunger 15 in the plunger cavity 19 of the monoblock pump body 1.
At ordinary times, the unit pump sucks oil from the oil inlet pipe, and the sucked oil enters the fuel oil inlet cavity 32 for standby. When the plunger 15 moves downwards, at the moment, the electromagnet part 9 is powered off, the valve core 15 moves downwards under the action of the electromagnetic valve spring 2, so that the oil inlet conical surface gap 34 of 0.2mm between the bottom of the valve core 15 and the bottom of the valve core hole 29 is opened, and the fuel in the fuel inlet cavity 32 is sucked from the oil inlet conical surface gap 34 of 0.2mm between the bottom of the valve core 15 and the bottom of the valve core hole 29 and enters the high-pressure oil cavity 35 in the plunger cavity 19 through the gap between the valve core 15 and the valve core hole 29, the oil inlet and return channel 30, the oil inlet and return hole 20 and the plunger oil hole 23. When the plunger moves upwards to a proper moment, the ECU gives an electrifying instruction to the electromagnet part 9, the electromagnet part 9 generates an attraction force after being electrified, the attraction force is transmitted to the valve core 15 through the armature 7, the valve core 15 is driven to move upwards after overcoming the resistance of the electromagnetic valve spring 2, the oil inlet conical surface gap 34 of 0.2mm between the bottom of the valve core 15 and the bottom of the valve core hole 29 is closed, and oil absorption is closed. During the upward movement of the valve element 15, the fuel in the high-pressure oil chamber 35 is compressed. When the pressure of the high-pressure fuel in the high-pressure oil chamber 36 is higher than the closing pressure of the injection valve member 17, the high-pressure fuel in the high-pressure oil chamber 35 is discharged through the plunger oil hole 23, the injection hole 21, and the injection valve member 17. An excessive part of the fuel enters the fuel return cavity 33 through the fuel inlet and return hole 20, the fuel inlet and return channel 30 and the clearance between the valve core 15 and the valve core hole 29, and then returns to the fuel tank through the fuel return cavity 33. The above series of actions are completed in a short time and are all circularly performed.
Claims (3)
1. An electric control monoblock pump control structure comprises a monoblock pump body, a plunger valve component, an oil injection valve component, a pressure stabilizing valve component and an electromagnetic valve component, wherein a plunger cavity, an oil inlet and return hole, an oil injection hole, a pressure stabilizing oil hole, a plunger oil hole, an oil injection valve component mounting hole, a pressure stabilizing valve component mounting hole and an electromagnetic valve component mounting hole are arranged in the monoblock pump body, the plunger cavity is coaxial and sequentially communicated with the plunger oil hole, the oil injection hole and the oil injection valve component mounting hole, a plunger in the plunger valve component is arranged in the plunger cavity in a sliding mode, the oil injection valve component is mounted in the oil injection valve component mounting hole, the pressure stabilizing valve component is mounted in the pressure stabilizing valve component mounting hole, and the electromagnetic; the plunger piston oil hole and the plunger piston oil hole are communicated with the oil injection hole, the same axis of the plunger piston cavity, the same axis of the plunger piston oil hole, the same axis of the oil injection hole and the same axis of the oil injection valve part mounting hole are perpendicular to each other and parallel to the axis of the electromagnetic valve part mounting hole, and the oil inlet and return holes are vertically communicated with the electromagnetic valve part mounting hole.
2. An electrically controlled monoblock pump control structure according to claim 1, wherein said solenoid valve member comprises a solenoid valve spring, a solenoid valve spring retainer ring, a solenoid valve spring seat, a solenoid tightening cap, a sealing O-ring, an armature, an adjusting washer, a solenoid valve member, a screw, a lock nut, a stopper, a valve seat and a valve core, said solenoid valve member is press-fitted into said solenoid valve member mounting hole through said solenoid tightening cap, said sealing O-ring is provided between said solenoid valve member and said solenoid valve member mounting hole, and said adjusting washer is provided between said solenoid valve member and a step surface in said solenoid valve member mounting hole; the armature is fixed on the upper end face of the valve core through the screw, the electromagnetic valve spring retainer ring is fixed on the upper portion of the valve core, the valve seat is arranged in the electromagnetic valve component mounting hole in an interference fit mode, a valve core hole, an oil inlet and return channel and a communication oil hole are formed in the valve seat, two ends of the oil inlet and return channel are respectively communicated with the oil inlet and return hole and the valve core hole, the valve seat divides the electromagnetic valve component mounting hole into a fuel oil inlet cavity and a fuel oil return cavity, the fuel oil inlet cavity is located below the valve seat, the fuel oil return cavity is located below the valve seat, and the fuel oil inlet cavity is communicated with the fuel oil return cavity through the communication oil hole; the middle lower part of the valve core is arranged in a valve core hole of the valve seat in a sliding mode through a fit clearance, the electromagnetic valve spring is sleeved on the middle upper part of the valve core, the upper end of the electromagnetic valve spring acts on the electromagnetic valve spring retaining ring, and the lower end of the electromagnetic valve spring acts on the upper end face of the valve seat; the check block is locked at the lower part of the electromagnetic valve component mounting hole through the locking nut, and the bottom of the valve core is contacted with the top surface of the check block; an oil inlet conical surface gap is arranged between the bottom of the valve core and the bottom of the valve core hole.
3. An electrically controlled monoblock pump control structure according to claim 2, wherein said oil intake taper gap is 0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464064.8U CN212774566U (en) | 2019-12-31 | 2019-12-31 | Automatically controlled monoblock pump control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464064.8U CN212774566U (en) | 2019-12-31 | 2019-12-31 | Automatically controlled monoblock pump control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774566U true CN212774566U (en) | 2021-03-23 |
Family
ID=75025650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922464064.8U Active CN212774566U (en) | 2019-12-31 | 2019-12-31 | Automatically controlled monoblock pump control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102113A (en) * | 2019-12-31 | 2020-05-05 | 南岳电控（衡阳）工业技术股份有限公司 | An electronic control unit pump control structure |
-
2019
- 2019-12-31 CN CN201922464064.8U patent/CN212774566U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102113A (en) * | 2019-12-31 | 2020-05-05 | 南岳电控（衡阳）工业技术股份有限公司 | An electronic control unit pump control structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104018966B (en) | Pressure accumulator current limiting electromagnetic control injector | |
| EP0812388B1 (en) | Fuel pumping and injection systems | |
| US4568021A (en) | Electromagnetic unit fuel injector | |
| CN104018965B (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN104018969B (en) | Piezoelectricity controls pressure accumulation type voltage regulation fuel injector | |
| RU2012148170A (en) | HIGH PRESSURE PUMP | |
| CN110748446B (en) | Common rail high-pressure oil inlet and outlet valve assembly and common rail high-pressure oil feed pump | |
| CN104564460A (en) | Supercharged common rail fuel injection system of marine low-speed diesel engine | |
| CN104847554A (en) | Electric control unit pump for diesel machine | |
| CN111102113A (en) | An electronic control unit pump control structure | |
| CN212774566U (en) | Automatically controlled monoblock pump control structure | |
| CN106523228B (en) | Low-power diesel generator fuel injection electronic unit pump | |
| CN103244324B (en) | Piezoelectric electronically controlled fuel injector | |
| CN101818711A (en) | Injection valve of electric control oil injector | |
| CN205001096U (en) | Monoblock pump assembly for single cylinder diesel | |
| CN203925840U (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN215292737U (en) | Split type automatically controlled monoblock pump | |
| CN108412653B (en) | Common rail fuel injector | |
| CN213063811U (en) | Compact electromagnet | |
| JP2001207935A (en) | Fuel injection device assembly having improved solenoid operating type check valve | |
| CN206707900U (en) | A kind of low-power diesel-driven generator fuel jet electronic monoblock pump | |
| US6021963A (en) | Cartridge control valve with top mounted solenoid and flat valve seat for a fuel injector | |
| CN109736988B (en) | Electric control single body fuel injection pump for single cylinder diesel engine | |
| CN201730718U (en) | Injection valve of electric control fuel injector | |
| CN108131230B (en) | High-pressure common rail heavy mechanical oil sprayer of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |