CN100443714C - Coordinate electric-controlled fuel-oil jetting system - Google Patents
Coordinate electric-controlled fuel-oil jetting system Download PDFInfo
- Publication number
- CN100443714C CN100443714C CNB2006100951712A CN200610095171A CN100443714C CN 100443714 C CN100443714 C CN 100443714C CN B2006100951712 A CNB2006100951712 A CN B2006100951712A CN 200610095171 A CN200610095171 A CN 200610095171A CN 100443714 C CN100443714 C CN 100443714C
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- solenoid valve
- control valve
- fuel
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
This invention discloses a coordinated electric controlled fuel spray system including a nozzle tip coupled piece, a sprayer, pads and a pressure-regulation spring of a sprayer characterizing that the top of the sprayer is set with a groove and an electromagnetic valve is set on the groove, the base of a control valve is installed on the bottom of the groove by a regulation pad, oil-ins mutually connected are set on the valve base and the regulation pad connected with the high pressure oil channel on the sprayer device to form a high pressure fuel cavity and spill ports mutually connected are set on them to form a spill channel, a spill cavity is set at the top side of the sprayer, the inside bottom of the control valve base is a cone, the bottom of the valve core is matched with said cone, when the valve core and the base are started up, the high pressure fuel cavity is connected with the spill cavity of the sprayer via the spill channel, which can control the sprayer timely to spray fuel .
Description
Technical field
The present invention relates to a kind of fuel injection pumping system, especially relate to a kind of coordinate electric-controlled fuel-oil jetting system.
Background technique
Along with the pay attention to day by day of country to environmental protection, the diesel engine of Europe II discharging can not satisfy the needs of national development.The diesel engine of Europe III discharging becomes the research direction of domestic each engine works, and the fuel injection pumping system is influence one of topmost component of engine emission, therefore, must develop and a kind ofly can satisfy Europe III and discharge the oil sprayer that adapts and adapt with it.
Summary of the invention
The invention provides a kind of coordinate electric-controlled fuel-oil jetting system that can satisfy Europe III discharging.Its technological scheme is: a kind of electric control fuel oil jet system, comprise oil nozzle idol part, oil injector body, pad, spring for fuel injector, it is characterized in that: the oil injector body top is provided with a groove, groove is provided with solenoid valve, and the control valve valve seat of solenoid valve is installed in the bottom of groove by spacer; Be respectively equipped with the filler opening that communicates with each other on the control valve valve seat of solenoid valve and the spacer and be communicated with and form the high pressure fuel chamber with high-pressure oil duct on the oil injector body, also be provided with the return opening that communicates with each other and form drainback passage, the side, top of oil injector body is provided with oil back chamber; The inside bottom of the control valve valve seat of solenoid valve is the conical surface, and the lower end of the control valve spool of solenoid valve and the conical surface of its control valve valve seat are complementary; When the control valve spool of solenoid valve and control valve valve seat were opened, the high pressure fuel chamber was communicated with the oil back chamber of oil injector body by drainback passage.
The control system of described solenoid valve comprises electromagnet and rabbets its interior armature; The electromagnet of solenoid valve is connected with the top of oil injector body by dividing plate, and the armature of solenoid valve is connected with the top of control valve spool; Be socketed with gag bit pad, solenoid valve spring and spring seat on the control valve spool between the armature of solenoid valve and the control valve valve seat from top to bottom successively; Be provided with gland between the solenoid valve spring of solenoid valve and the inner side surface of oil injector body; Be respectively arranged with sealing gasket between the electromagnet of dividing plate and solenoid valve and the oil injector body.
Be connected by screw between the control valve spool of solenoid valve and the armature; Be connected by attachment screw between the electromagnet of solenoid valve, dividing plate and the oil injector body.
The upper end of spring for fuel injector is equipped with a back pressure valve in oil injector body, sets gradually steel ball, back pressure valve spring seat and back pressure valve spring in the valve seat in the back pressure valve from the bottom to top; Oil injector body is provided with an oil input channel back pressure cavity of high pressure fuel chamber with the spring for fuel injector place is communicated with.
Pad is arranged on the upper end of spring for fuel injector, be provided with the jet solenoid valve in the upper end of pad, pad is connected with the control valve valve seat of jet solenoid valve, be respectively equipped with the oil input channel that is interconnected and be communicated with high pressure fuel chamber and fuel chamber respectively on the control valve valve seat of pad and jet solenoid valve, the control valve valve seat of jet solenoid valve is provided with the return opening that is communicated with drainback passage; The upper end of the control valve valve seat of jet solenoid valve is its control valve spool, and it is in contact with one another face is the conical surface; When the control valve spool of jet solenoid valve and control valve valve seat were opened, fuel chamber was communicated with the oil back chamber of oil injector body by return opening, drainback passage.
Described jet solenoid valve is made up of the armature of electromagnet and lower end thereof, and the armature of jet solenoid valve is fitted on its control valve spool, is provided with the solenoid valve spring between the armature of jet solenoid valve, control valve spool and the electromagnet.
Useful technique effect of the present invention is: can in time control oil sprayer injected fuel in cylinder.Make the fuel injection characteristic of oil sprayer help the discharging and the economic performance of motor most, reach the requirement of Europe III Abgasgesetz.
Description of drawings
Fig. 1 is the structural drawing of the embodiment of the invention 1;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the structural drawing of the embodiment of the invention 2;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the structural drawing of inventive embodiments 3;
Fig. 6 is the partial enlarged drawing of Fig. 5.
In the accompanying drawing, oil nozzle idol part 1, oil injector body 2, oil input channel 3, pad 4, spring for fuel injector 5, jet solenoid valve 6, solenoid valve spring 6-1, control valve valve seat 6-2, control valve spool 6-3, electromagnet 6-4, armature 6-5, pressure regulation pad 7, solenoid valve 8, drainback passage 8-1, spacer 8-2, control valve valve seat 8-3, control valve spool 8-4, gland 8-5, dividing plate 8-6, electromagnet 8-7, spring seat 8-8, solenoid valve spring 8-9, gag bit pad 8-10, sealing gasket 8-11, armature 8-12, screw 8-13, attachment screw 8-14, back pressure valve 9, valve seat 9-1, back pressure valve spring 9-2, back pressure valve spring seat 9-3, steel ball 9-4, high pressure fuel chamber A, return opening B, oil back chamber C, back pressure cavity D, fuel chamber E.
Embodiment
Embodiment 1: referring to Fig. 1, Fig. 2, a kind of electric control fuel oil jet system, comprise oil nozzle idol part 1, oil injector body 2, pad 4, spring for fuel injector 5, it is characterized in that: oil injector body 2 tops are provided with a groove, groove is provided with solenoid valve 8, and the control valve valve seat 8-3 of solenoid valve 8 is installed in the bottom of groove by spacer 8-2; Be respectively equipped with the filler opening that communicates with each other on the control valve valve seat 8-3 of solenoid valve 8 and the spacer 8-2 and be communicated with and form high pressure fuel chamber A with high-pressure oil duct on the oil injector body 2, also be provided with the return opening that communicates with each other and form drainback passage 8-1, the side, top of oil injector body 2 is provided with oil back chamber C; The inside bottom of the control valve valve seat 8-3 of solenoid valve 8 is the conical surface, and the conical surface of the lower end of the control valve spool 8-4 of solenoid valve 8 and its control valve valve seat 8-3 is complementary; When the control valve spool 8-4 of solenoid valve 8 and control valve valve seat 8-3 opened, high pressure fuel chamber A was communicated with the oil back chamber C of oil injector body 2 by drainback passage 8-1.
The control system of described solenoid valve 8 comprises electromagnet 8-7 and rabbets its interior armature 8-12; The electromagnet 8-7 of solenoid valve 8 is connected with the top of oil injector body 2 by dividing plate 8-6, and the armature 8-12 of solenoid valve 8 is connected with the top of control valve spool 8-4; Be socketed with gag bit pad 8-10, solenoid valve spring 8-9 and spring seat 8-8 from top to bottom successively on the control valve spool 8-4 between the armature 8-12 of solenoid valve 8 and the control valve valve seat 8-3; Be provided with gland 8-5 between the solenoid valve spring 8-9 of solenoid valve 8 and the inner side surface of oil injector body 2; Be respectively arranged with sealing gasket 8-11 between dividing plate 8-6 and electromagnet 8-7 and the oil injector body 2.
Be connected by screw 8-13 between the control valve spool 8-4 of solenoid valve 8 and the armature 8-12; Be connected by attachment screw 8-14 between the electromagnet 8-7 of solenoid valve 8, dividing plate 8-6 and the oil injector body 2.
Present embodiment is controlled the principle of its control valve spool 8-4 and control valve valve seat 8-3 switch by the electromagnet 8-7 of solenoid valve 8, produce electromagnetic force by electromagnet 8-7 energising, guarantee that electromagnet 8-7 produces electromagnetic force upwards and overcomes the restoring force of solenoid valve spring 8-9 and high pressure fuel to the downward active force of control valve spool 8-4, make the sealing of control valve spool 8-4 and control valve valve seat 8-3 seat surface produce high pressure.And when electromagnetic force disappeared, control valve spool 8-4 moved downward and produces the gap release under the active force of the restoring force of solenoid valve spring 8-9 and high pressure fuel.
Injection process: when injection pump plunger by lower dead center in the process of top dead center motion, when fuel oil enters oil injector body 2 high-pressure oil ducts, the electromagnet 8-7 energising of solenoid valve 8 produces electromagnetic force, make its armature 8-12 up move, the armature 8-12 of solenoid valve 8 drives its control valve spool 8-4 and moves upward, with till the sealing cone of its control valve valve seat 8-3 contacts, high pressure fuel chamber A forms confined space until the sealing cone of its control valve spool 8-4.At this moment, because plunger continues to move upward, fuel oil constantly enters high-pressure oil duct, the compression fuel oil, fuel pressure raises rapidly, when fuel pressure overcame the injection pressure of injector of spring for fuel injector 5 by 7 preliminary adjustments of pressure regulation pad, fuel oil to the cylinder oil spout, was finished injection process by oil nozzle idol part 1.
Stop oil spout: when the needs according to motor stop oil spout, only need the power supply of the electromagnet 8-7 of disconnection solenoid valve 8, electromagnetic force disappears.Because electromagnetic force disappears, under the return effect of solenoid valve spring 8-9, the control valve spool 8-4 and the armature 8-12 that promote solenoid valve 8 move downward together, the sealing cone of the control valve spool 8-4 of solenoid valve 8 leaves the sealing cone of its control valve valve seat 8-3, between produces the gap, high pressure fuel just flows to the oil back chamber C of oil injector body 2 by this gap and drainback passage 8-1 from high pressure fuel chamber A, fuel pressure reduces rapidly, fuel pressure in the oil sprayer can't overcome the injection pressure of injector of spring for fuel injector 5 by 7 preliminary adjustments of pressure regulation pad, make the oil nozzle idol part 1 of oil sprayer be in closed condition all the time, oil sprayer is in the fuel cut-off state.
Present embodiment can in time be controlled oil sprayer injected fuel in cylinder.Make the fuel injection characteristic of oil sprayer help the discharging and the economic performance of motor most, reach the requirement of Europe III Abgasgesetz.
Embodiment 2: referring to Fig. 3, Fig. 4, on embodiment 1 basis, the upper end of spring for fuel injector 5 is equipped with a back pressure valve 9 in oil injector body 2, sets gradually steel ball 9-4, back pressure valve spring seat 9-3 and back pressure valve spring 9-2 in the valve seat 9-1 in the back pressure valve 9 from the bottom to top; Oil injector body 2 is provided with an oil input channel 3 high pressure fuel chamber A is communicated with the back pressure cavity D at spring for fuel injector 5 places.
Present embodiment is controlled the principle of its control valve spool 8-4 and control valve valve seat 8-3 switch by the electromagnet 8-7 of solenoid valve 8, produce electromagnetic force by its electromagnet 8-7 energising, guarantee that its electromagnet 8-7 produces electromagnetic force upwards and overcomes the restoring force of its solenoid valve spring 8-9 and high pressure fuel to the downward active force of control valve spool 8-4, make the sealing of its control valve spool 8-4 and control valve valve seat 8-3 seat surface produce high pressure, the fuel oil in high pressure fuel chamber is after overcoming the preliminary adjustment pressure of back pressure valve 9, and steel ball 9-4 opens.And when electromagnetic force disappeared, the control valve spool 8-4 of solenoid valve 8 moved downward and produces the gap release under the active force of the restoring force of solenoid valve spring 8-9 and high pressure fuel.
Injection process: when injection pump plunger by lower dead center in the process of top dead center motion, when fuel oil enters oil injector body 2 high-pressure oil ducts, the electromagnet 8-7 energising of solenoid valve 8 produces electromagnetic force, make its armature 8-12 up move, armature 8-12 drives its control valve spool 8-4 and moves upward, with till the sealing cone of control valve valve seat 8-3 contacts, high pressure fuel chamber A forms confined space until the sealing cone of its control valve spool 8-4.At this moment, because plunger continues to move upward, fuel oil constantly enters high-pressure oil duct, the compression fuel oil; On oil injector body 2, there is an oil input channel 3 to join with back pressure cavity D, fuel oil enters back pressure cavity D simultaneously, this moment, back pressure cavity D was identical with high pressure fuel chamber A oil pressure, oil nozzle idol part 1 still is in closed condition, along with fuel pressure raises rapidly, after fuel pressure overcomes back pressure valve spring 9-2 preliminary adjustment pressure, the lift off a seat sealing cone of 9-1 of steel ball 9-4, between produces the gap, high pressure fuel just enters the oil back chamber C that drainback passage B flows to oil injector body 2 from back pressure cavity D by this gap, because the oil input channel circulation area of joining with back pressure cavity D on the oil injector body 2 is much smaller than the sealing cone area of steel ball 9-4 and valve seat 9-1, the oil pressure of back pressure cavity D descends, be lower than the oil pressure of high pressure fuel chamber A, and the preliminary adjustment pressure of back pressure valve 9 is far above the injection pressure of injector of spring for fuel injector 5 by 7 preliminary adjustments of pressure regulation pad, this moment, fuel oil to the cylinder oil spout, was finished injection process by oil nozzle idol part 1.
Stop oil spout: when the needs according to motor stop oil spout, only need the power supply of the electromagnet 8-7 of disconnection solenoid valve 8, electromagnetic force disappears.Because electromagnetic force disappears, under the return effect of solenoid valve spring 8-9, promoting its control valve spool 8-4 and armature 8-12 moves downward together, the sealing cone of the control valve spool 8-4 of solenoid valve 8 leaves the sealing cone of its control valve valve seat 8-3, between produces the gap, high pressure fuel just flows to the oil back chamber C of oil injector body 2 by this gap and drainback passage B from high pressure fuel chamber A, fuel pressure reduces rapidly, the steel ball 9-4 of back pressure valve 9 takes a seat under the effect of back pressure valve spring 9-2 restoring force, close back pressure valve 9, make back pressure cavity D identical with high pressure fuel chamber A oil pressure, fuel pressure in the oil sprayer can't overcome the preliminary adjustment pressure of back pressure valve 9, make the oil nozzle idol part 1 of oil sprayer be in closed condition all the time, oil sprayer is in the fuel cut-off state.
Present embodiment can be in time with higher cracking pressure control oil sprayer injected fuel in cylinder.
Embodiment 3: referring to Fig. 5, Fig. 6, on embodiment 1 basis, pad 4 is arranged on the wither upper end of pressing spring 5 of oil sprayer, be provided with jet solenoid valve 6 in the upper end of pad 4, pad 4 is connected with the control valve valve seat 6-2 of jet solenoid valve 6, be respectively equipped with the oil input channel 3 that is interconnected and be communicated with high pressure fuel chamber A and fuel chamber E respectively on the control valve valve seat 6-2 of pad 4 and jet solenoid valve 6, the control valve valve seat 6-2 of jet solenoid valve 6 is provided with the return opening B that is communicated with drainback passage 8-1; The upper end of the control valve valve seat 6-2 of jet solenoid valve 6 is its control valve spool 6-3, and it is in contact with one another face is the conical surface; When the control valve spool 6-3 of jet solenoid valve 6 and its control valve valve seat 6-2 opened, fuel chamber E was communicated with the oil back chamber C of oil injector body 2 by return opening B, drainback passage 8-1.
Described jet solenoid valve 6 is made up of the armature 6-5 of electromagnet 6-4 and lower end thereof, and the armature 6-5 of jet solenoid valve 6 is fitted on its control valve spool 6-3, is provided with solenoid valve spring 6-1 between its armature 6-5, control valve spool 6-3 and the electromagnet 6-4.
Present embodiment adopts the dual-coil electromagnetic valve structure, control the principle of different two pairs of control valve spools and control valve valve seat switch respectively by double electromagnet, electromagnet 8-7 energising by solenoid valve 8 produces electromagnetic force, guarantee that electromagnet 8-7 produces electromagnetic force upwards and overcomes the restoring force of solenoid valve spring 8-9 and high pressure fuel to the downward active force of control valve spool 8-4 of solenoid valve 8, make the control valve spool 8-4 of solenoid valve 8 and the sealing of control valve valve seat 8-3 seat surface produce high pressure; And when electromagnetic force disappeared, the control valve spool 8-4 of solenoid valve 8 moved downward and produces the gap release under the active force of the restoring force of solenoid valve spring 8-9 and high pressure fuel.Electromagnet 6-4 energising by jet solenoid valve 6 produces electromagnetic force, guarantees that electromagnet 6-4 produces the restoring force that electromagnetic force upwards overcomes its solenoid valve spring 6-1, and the control valve spool 6-3 of jet solenoid valve 6 moves upward and produces the gap release.And when electromagnetic force disappears, overcome under the active force of high pressure fuel at the solenoid valve spring 6-1 of jet solenoid valve 6 restoring force, its control valve spool 6-3 moves downward, and produces high pressure with the sealing of its control valve valve seat 6-2 seat surface.
Injection process: when injection pump plunger by lower dead center in the process of top dead center motion, when fuel oil enters oil injector body 2 high-pressure oil ducts, the electromagnet 8-7 energising of solenoid valve 8 produces electromagnetic force, make its armature 8-12 up move, its armature 8-12 drives its control valve spool 8-4 and moves upward, with till the sealing cone of its control valve valve seat 8-3 contacts, high pressure fuel chamber A forms confined space until the sealing cone of its control valve spool 8-4.At this moment, because plunger continues to move upward, fuel oil constantly enters high-pressure oil duct, the compression fuel oil, and fuel pressure raises rapidly; But have oil input channel and the fuel chamber E of the control valve valve seat 6-2 of an oil input channel and jet solenoid valve 6 to join on pad 4, fuel oil enters fuel chamber E simultaneously, and this moment, fuel chamber E was identical with high pressure fuel chamber A oil pressure, and oil nozzle idol part 1 is in closed condition; When the needs oil spout, the electromagnet 6-4 energising of jet solenoid valve 6 produces the restoring force that electromagnetic force overcomes its solenoid valve spring 6-1, make its armature 6-5 up move, its armature 6-5 drives its control valve spool 6-3 and moves upward, and its control valve spool 6-3 moves upward and produces the gap release.Fuel oil just enters the oil back chamber C that drainback passage 8-1 flows to oil injector body 2 from fuel chamber E by this gap, because the oil input channel circulation area of joining with fuel chamber E on the pad 4 is less than the pressure release area of the control valve spool 6-3 and the control valve valve seat 6-2 of jet solenoid valve 6, the oil pressure suppression ratio high pressure fuel chamber A of fuel chamber E is rapid, be lower than the oil pressure of high pressure fuel chamber A, when fuel pressure overcomes the injection pressure of injector of spring for fuel injector 5 preliminary adjustments, fuel oil passes through oil nozzle idol part 1 to the cylinder oil spout, finish injection process, and can pass through the switching of the electromagnet 6-4 of control jet solenoid valve 6, realize repeatedly oil spout.
Stop oil spout: when the needs according to motor stop oil spout, only need the power supply of the electromagnet 8-7 of disconnection solenoid valve 8, electromagnetic force disappears.Because electromagnetic force disappears, under the return effect of the solenoid valve spring 8-9 of solenoid valve 8, the control valve spool 8-4 and the armature 8-12 that promote solenoid valve 8 move downward together, the sealing cone of its control valve spool 8-4 leaves the sealing cone of control valve valve seat 8-3, between produces the gap, high pressure fuel just flows to the oil back chamber C of oil injector body 2 by this gap and drainback passage B from high pressure fuel chamber A, fuel pressure reduces rapidly, make the oil nozzle idol part 1 of oil sprayer be in closed condition all the time, oil sprayer is in the fuel cut-off state.
Even when fuel feeding, solenoid valve 8 is under the working condition, when not needing oil spout, only need the power supply of the electromagnet 6-4 of disconnection jet solenoid valve 6, make its armature 6-5 under the restoring force of its solenoid valve spring 6-1, driving control valve spool 6-3 moves downward, until the sealing cone of control valve spool 6-3 with till the sealing cone of control valve valve seat 6-2 contacts, fuel chamber E forms confined space, make fuel chamber E identical with high pressure fuel chamber A oil pressure, oil nozzle idol part 1 still can be in closed condition, and oil sprayer is in the fuel cut-off state.
Present embodiment can in good time, repeatedly pass through electromagnetic valve oil sprayer injected fuel in cylinder.
Claims (6)
1, a kind of coordinate electric-controlled fuel-oil jetting system, comprise oil nozzle idol part (1), oil injector body (2), pad (4), spring for fuel injector (5), it is characterized in that: oil injector body (2) top is provided with a groove, groove is provided with solenoid valve (8), and the control valve valve seat (8-3) of solenoid valve (8) is installed in the bottom of groove by spacer (8-2); Be respectively equipped with the filler opening that communicates with each other on the control valve valve seat (8-3) of solenoid valve (8) and the spacer (8-2) and be communicated with and form high pressure fuel chamber (A) with high-pressure oil duct on the oil injector body (2), also be provided with the return opening that communicates with each other and form drainback passage (8-1), the side, top of oil injector body (2) is provided with oil back chamber (C); The inside bottom of the control valve valve seat (8-3) of solenoid valve (8) is the conical surface, and the lower end of the control valve spool (8-4) of solenoid valve (8) and the conical surface of its control valve valve seat (8-3) are complementary; When the control valve spool (8-4) of solenoid valve (8) was opened with control valve valve seat (8-3), high pressure fuel chamber (A) was communicated with the oil back chamber (C) of oil injector body (2) by drainback passage (8-1).
2, coordinate electric-controlled fuel-oil jetting system according to claim 1 is characterized in that: the control system of described solenoid valve (8) comprises electromagnet (8-7) and rabbets its interior armature (8-12); The electromagnet (8-7) of solenoid valve (8) is connected with the top of oil injector body (2) by dividing plate (8-6), and the armature (8-12) of solenoid valve (8) is connected with the top of control valve spool (8-4); Be socketed with gag bit pad (8-10), solenoid valve spring (8-9) and spring seat (8-8) from top to bottom successively on the armature (8-12) of solenoid valve (8) and the control valve spool (8-4) between the control valve valve seat (8-3); Be provided with gland (8-5) between the solenoid valve spring (8-9) of solenoid valve (8) and the inner side surface of oil injector body (2); Be respectively arranged with sealing gasket (8-11) between the electromagnet (8-7) of dividing plate (8-6) and solenoid valve (8) and the oil injector body (2).
3, coordinate electric-controlled fuel-oil jetting system according to claim 2 is characterized in that: be connected by screw (8-13) between the control valve spool (8-4) of solenoid valve (8) and the armature (8-12); Be connected by attachment screw (8-14) between the electromagnet (8-7) of solenoid valve (8), dividing plate (8-6) and the oil injector body (2).
4, coordinate electric-controlled fuel-oil jetting system according to claim 1, it is characterized in that: the upper end of spring for fuel injector (5) is equipped with a back pressure valve (9) in oil injector body (2), is disposed with steel ball (9-4), back pressure valve spring seat (9-3) and back pressure valve spring (9-2) in the valve seat (9-1) in the back pressure valve (9) from the bottom to top; Oil injector body (2) is provided with an oil input channel (3) high pressure fuel chamber (A) is communicated with the back pressure cavity (D) at spring for fuel injector (5) place.
5, coordinate electric-controlled fuel-oil jetting system according to claim 1, it is characterized in that: pad (4) is arranged on the upper end of spring for fuel injector (5), be provided with jet solenoid valve (6) in the upper end of pad (4), pad (4) is connected with the control valve valve seat (6-2) of jet solenoid valve (6), be respectively equipped with the oil input channel (3) that is interconnected and be communicated with the fuel chamber (E) at high pressure fuel chamber (A) and spring for fuel injector (5) place respectively on the control valve valve seat (6-2) of pad (4) and jet solenoid valve (6), the control valve valve seat (6-2) of jet solenoid valve (6) is provided with the return opening (B) that is communicated with drainback passage (8-1); The upper end of the control valve valve seat (6-2) of jet solenoid valve (6) is its control valve spool (6-3), and it is in contact with one another face is the conical surface; When the control valve spool (6-3) of jet solenoid valve (6) was opened with the control valve valve seat (6-2) of jet solenoid valve (6), fuel chamber (E) was communicated with the oil back chamber (C) of oil injector body (2) by return opening (B), drainback passage (8-1).
6, coordinate electric-controlled fuel-oil jetting system according to claim 5, it is characterized in that: described jet solenoid valve (6) is made up of the armature (6-5) of electromagnet (6-4) and lower end thereof, the armature (6-5) of jet solenoid valve (6) is fitted on its control valve spool (6-3), is provided with solenoid valve spring (6-1) between the armature (6-5) of jet solenoid valve (6), the control valve spool (6-3) of jet solenoid valve (6) and the electromagnet (6-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100951712A CN100443714C (en) | 2006-09-29 | 2006-09-29 | Coordinate electric-controlled fuel-oil jetting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100951712A CN100443714C (en) | 2006-09-29 | 2006-09-29 | Coordinate electric-controlled fuel-oil jetting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1936314A CN1936314A (en) | 2007-03-28 |
| CN100443714C true CN100443714C (en) | 2008-12-17 |
Family
ID=37953987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100951712A Expired - Fee Related CN100443714C (en) | 2006-09-29 | 2006-09-29 | Coordinate electric-controlled fuel-oil jetting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100443714C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644060B (en) * | 2013-12-05 | 2016-02-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of control valve |
| CN104564463A (en) * | 2014-12-31 | 2015-04-29 | 无锡威孚马山油泵油嘴有限公司 | Common-rail oil injector assembly |
| CN107795421B (en) * | 2016-09-02 | 2021-11-30 | 罗伯特·博世有限公司 | Fuel injector for engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288317A (en) * | 1993-04-08 | 1994-10-11 | Toyota Motor Corp | Fuel injection device for diesel engine |
| US5957381A (en) * | 1996-10-09 | 1999-09-28 | Zexel Corporation | Fuel injection nozzle |
| CN200958445Y (en) * | 2006-09-29 | 2007-10-10 | 中国重汽集团重庆燃油喷射系统有限公司 | Coordinated electricall-controlled fuel-oil jetting system |
-
2006
- 2006-09-29 CN CNB2006100951712A patent/CN100443714C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288317A (en) * | 1993-04-08 | 1994-10-11 | Toyota Motor Corp | Fuel injection device for diesel engine |
| US5957381A (en) * | 1996-10-09 | 1999-09-28 | Zexel Corporation | Fuel injection nozzle |
| CN200958445Y (en) * | 2006-09-29 | 2007-10-10 | 中国重汽集团重庆燃油喷射系统有限公司 | Coordinated electricall-controlled fuel-oil jetting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1936314A (en) | 2007-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109578186B (en) | Low oil return high-pressure common rail oil injector | |
| CN104018966B (en) | Pressure accumulation current-limiting type electromagnetic control oil sprayer | |
| KR20090034371A (en) | Injector for a fuel injection system | |
| CN101806266A (en) | Double-valve fuel injecting device with electric-control monoblock pump and electric-control fuel injector | |
| CN107503870A (en) | Fuel Feeding System for Diesel Engine is united | |
| CN103670852A (en) | Dual check fuel injector with single actuator | |
| CN104018964A (en) | Pressure accumulation flow-limiting type piezoelectric control oil sprayer | |
| CN101798977B (en) | Piezoelectric and electromagnetic combination double-valve device | |
| CN115288902A (en) | Low-oil return amount double-lift-range variable oil injection rule electric control oil injector | |
| CN100443714C (en) | Coordinate electric-controlled fuel-oil jetting system | |
| CN102374085A (en) | Low oil return type piezoelectric control fuel injector | |
| CN101395365B (en) | Fuel injector having recessed check top | |
| CN103244324A (en) | Piezoelectric electronic-control fuel injector | |
| CN104196664A (en) | Conical surface sealed high pressure common rail fuel injector controller | |
| GB2364102A (en) | Pressure-controlled i.c. engine fuel injector with controlled nozzle needle | |
| CN110546376B (en) | Fuel injection valve | |
| CN200958445Y (en) | Coordinated electricall-controlled fuel-oil jetting system | |
| CN101963119B (en) | Piezoelectric high-pressure common rail electronic control injector | |
| DE10033428A1 (en) | Pressure controlled injector for injecting fuel | |
| CN102392771A (en) | High-pressure common-rail diesel engine rail-pressure reinforcement principle and device | |
| CN102840075A (en) | Fluid ejector having rear end speed reshaping ability | |
| CN110017230A (en) | A kind of electro-hydraulic joint control rapid response type high pressure common rail injector | |
| CN202451331U (en) | High-pressure common-rail fuel injector | |
| CN102022241A (en) | Electrically-controlled secondary booster for diesel engine | |
| CN205779395U (en) | Combined electromagnetic oil spout supercharging piezoelectricity jet hybrid fuel jet device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20120929 |