CN102434346A - Low oil-return type electromagnetic control oil sprayer - Google Patents
Low oil-return type electromagnetic control oil sprayer Download PDFInfo
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- CN102434346A CN102434346A CN2011103746532A CN201110374653A CN102434346A CN 102434346 A CN102434346 A CN 102434346A CN 2011103746532 A CN2011103746532 A CN 2011103746532A CN 201110374653 A CN201110374653 A CN 201110374653A CN 102434346 A CN102434346 A CN 102434346A
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Abstract
The invention aims at providing a low oil-return type electromagnetic control oil sprayer, which comprises an electromagnetic valve part, a control piston, a return spring, an oil nozzle part which are installed in an oil sprayer body and connected in sequence. The control piston is installed in a control cavity body, and the electromagnetic valve part comprises a coil, an electromagnet, an armature, a control valve core return spring, a stop ring and a control valve core which are all installed in the electromagnetic valve body. The coil and the control valve core return spring are installed in the electromagnet connected with the armature, the control valve core is clamped on the armature through the stop ring, one end of the control valve core is connected with the control valve core return spring, and the other end of the control valve core is connected with the control cavity body. The low oil-return type electromagnetic control oil sprayer can close an oil inlet way of a control cavity during oil spraying process of the oil sprayer and prevent high pressure fuel oil from entering the control cavity so as to reduce oil return amount, save oil pump compression work of the fuel oil, reduce temperature rising of an oil tank, simultaneously improve oil spraying effect and economical performance and motive power performance of an engine.
Description
Technical field
What the present invention relates to is a kind of oil sprayer of motor injection system.
Background technique
In recent years, the diesel engine electric-controlled oil ejector technology has obtained swift and violent development, and the application of electric-controlled fuel injector becomes the inexorable trend of diesel engine development.Because high-speed electromagnetic valve has quick response, thereby can realize Fuel Injection Quantity for Diesel and fuel injection characteristic are controlled fast and accurately, thereby reach the purpose that improves engine fuel economy, power character and reduction hazardous emission.
The electromagnetic valve formula oil sprayer of current application is divided into two-way with the high pressure fuel that high-pressure oil pipe comes out: the one tunnel gets into the oil holding slot of oil-fuel injector needle-valve below, and one the tunnel gets into the control chamber of control piston top.When the solenoid valve action, when the control chamber oil drain valve was opened, high pressure oil flow back in the fuel tank, the control chamber release, and needle-valve rises under the effect of oil holding slot mesohigh fuel oil.But still there is deficiency in existing electric-controlled fuel injector, needs further to optimize and to improve: 1, during the oil sprayer oil spout, and control chamber oil inlet hole and draining hole UNICOM, in the low-pressure reservoir of directly releasing behind the high pressure oil entering control chamber, the compression work of having wasted this part fuel oil; 2: fuel oil can heat up in the process of being compressed, and flow back into the temperature rising that low-pressure reservoir can cause fuel oil in the fuel tank afterwards; 3: in the oil sprayer opening process, oil inlet hole reduces the release speed of control chamber also in oil-feed in the time of the draining of control chamber draining hole, and the needle-valve climbing speed slows down; Oil sprayer closes in the closed procedure, because the oil inlet hole diameter is very little, control chamber is built and pressed speed slower, and the needle-valve speed of taking a seat is reduced.
Summary of the invention
The object of the present invention is to provide the low oil-return type Electromagnetic Control oil sprayer that can reduce recirculating oil quantity, saving oil pump compression work, quickening needle-valve movement speed, reduce the fuel tank temperature rise.
The objective of the invention is to realize like this:
The present invention hangs down oil-return type Electromagnetic Control oil sprayer; Comprise the solenoid valve part, control piston, Returnning spring, the oil nozzle part that link to each other successively that are installed in the oil injector body; Control piston is installed in the control cavity, and it is characterized in that: described solenoid valve partly comprises coil, electromagnet, armature, control valve core reseting spring, stop ring, the control spool that is installed in the electromagnetic valve body, and coil is installed in the electromagnet with the control valve core reseting spring; Armature connects electromagnet; The control spool is stuck on the armature through stop ring, and an end of control spool connects the control valve core reseting spring, and the other end of control spool connects the control cavity.
The present invention can also comprise:
1, described oil nozzle partly comprises oil-fuel injector needle-valve, oil nozzle, and oil-fuel injector needle-valve is installed in the oil nozzle, forms oil holding slot between oil nozzle and the oil-fuel injector needle-valve, and oil holding slot is communicated with oil circuit.
2, described oil nozzle partly connects Returnning spring through spacing orifice plate, and the needle-valve return spring holder is installed in the joint of spacing orifice plate and Returnning spring.
3, also comprise the pressure accumulation chamber, the pressure accumulation chamber is communicated with oil holding slot and control cavity through oil pipe.
Advantage of the present invention is: have the solenoid valve of dual face seals control spool can be in the oil sprayer injection process oil-feed oil circuit in closing control chamber; Avoid high pressure fuel to continue to get into control chamber, thereby reduced recirculating oil quantity, saved the oil pump compression work of fuel oil; Reduced the temperature rise of fuel tank; Control chamber oil-feed simultaneously and draining process are separate, and it is built and presses and the release faster, and the movement speed of oil-fuel injector needle-valve is accelerated; Improve the oil spout effect, can improve the Economy and the power performance of motor.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention;
Fig. 2 is a solenoid valve part-structure schematic representation of the present invention;
Fig. 3 is an oil nozzle part-structure schematic representation of the present invention;
Fig. 4 is a control valve cored structure schematic representation of the present invention;
Fig. 5 is the schematic representation of band pressure accumulation cavity configuration of the present invention.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
Mode of execution 1:
In conjunction with Fig. 1～4, electromagnetic valve body 10, electromagnet 11, coil 19, armature 12, stop ring 17, control valve core reseting spring 18, double-sealing face control spool 14, big spring 13, spring seat 16, control cavity 1 have constituted the electromagnetic valve part 9 of low oil-return type Electromagnetic Control oil sprayer jointly.Double-sealing face control spool 14 is stuck on the armature 12 by stop ring 17 and is connected as a single entity with it, and moves with armature 12 through the electromagnetic force of 11 pairs of armature 12 of electromagnet.Control is processed with oil-feed oil circuit, ball sealer valve seat and draining oil circuit on the cavity 1, and the oil-feed oil circuit links to each other with oil inlet hole on high-pressure oil pipe and the spring seat 13, and the draining oil circuit links to each other with ball sealer valve seat and low pressure oil circuit.Oil nozzle 7, needle-valve 6, spacing orifice plate 20, tight cap 5, needle-valve Returnning spring 4, needle-valve return spring holder 22, control piston 2 and oil injector body 3 have been formed the main body of low oil-return type Electromagnetic Control oil sprayer.Oil injector body 3 bottoms connect tight cap 5 and oil nozzle 7, and there are needle-valve 6 and oil holding slot 21 in oil nozzle 7 inside.Control chamber 15 is positioned at control piston 2 tops, and control piston 2 is all pressed to oil nozzle 7 through Returnning spring base 22 with needle-valve 6 with needle-valve Returnning spring 4.Spacing orifice plate 20 has played restriction needle-valve 6 lifts and the effect of supporting Returnning spring base 22.Under different operating modes, the input signal that electronic control unit is gathered engine sensor drives fuel injector magnetic system part 9, thus the unlatching or the shutoff of control control chamber 15 oil-feed oil circuits and draining oil circuit.When electromagnetic valve coil 19 was not switched on, double-sealing face control spool 14 was in the state of taking a seat under the effect of Returnning spring 18, and control chamber 15 oil-feed oil circuits are opened; The draining oil circuit turn-offs, and a high pressure fuel part gets into the oil holding slot 21 in the oil nozzle 7, and a part gets into control chamber 15; This moment, oil holding slot 21 was identical with fuel pressure in the control chamber 15; Under the effect of needle-valve Returnning spring 22, oil-fuel injector needle-valve 6 is in the state of taking a seat, not oil spout of oil sprayer; During electromagnetic valve coil 19 energisings, double-sealing face is controlled spool 14 pull-ups, control chamber 15 oil-feed oil circuits turn-off; The draining oil circuit is opened; High pressure fuel in the control chamber 15 leaks in the low pressure oil circuit, and this moment, the oil pressure in the oil holding slot 21 was greater than the oil pressure in the control chamber 15, when pressure difference during greater than the reposition force of needle-valve Returnning spring 22; Needle-valve 6 rises the oil sprayer commencement of fuel injection.
Low oil-return type Electromagnetic Control oil sprayer mainly comprises oil nozzle part 8, Returnning spring 4, control piston 2, oil injector body 3 and solenoid valve part 9 compositions.Oil holding slot 21 and high-pressure oil pipe UNICOM; Solenoid valve 9 is positioned at control chamber 15 tops; Its control spool 14 is dual face seals structures, and the cone valve of top is used for controlling the unlatching or the shutoff of control chamber 15 oil-feed oil circuits, and the ball valve of below is used for controlling the unlatching or the shutoff of control chamber 15 draining oil circuits.
Have the solenoid valve 9 of dual face seals control spool 14 can be in the oil sprayer injection process oil-feed oil circuit in closing control chamber 15, avoid high pressure fuel to continue to get into control chamber 15, thereby reduced recirculating oil quantity; Saved the oil pump compression work of fuel oil, reduced the temperature rise of fuel tank, control chamber 15 oil-feeds simultaneously and draining process are separate; It is built and presses and the release faster; The movement speed of oil-fuel injector needle-valve 6 is accelerated, improved the oil spout effect, can improve the Economy and the power performance of motor.
Mode of execution 2:
As shown in Figure 5,23 imports of pressure accumulation chamber link to each other with high-pressure oil pipe, and outlet links to each other with oil holding slot 21 and control chamber 15 oil-feed oil circuits.Electromagnetic valve body 10, electromagnet 11, coil 19, armature 12, stop ring 17, control valve core reseting spring 18, double-sealing face control spool 14, big spring 13, spring seat 16, control cavity 1 have constituted the electromagnetic valve part 9 of low oil return pressure accumulation type Electromagnetic Control oil sprayer jointly.Double-sealing face control spool 14 is stuck on the armature 12 by stop ring 17 and is connected as a single entity with it, and moves with armature 12 through the electromagnetic force of 11 pairs of armature 12 of electromagnet.Control is processed with oil-feed oil circuit, ball sealer valve seat and draining oil circuit on the cavity 1, and the oil-feed oil circuit links to each other with oil inlet hole on 23 outlets of pressure accumulation chamber and the spring seat 13, and the draining oil circuit links to each other with ball sealer valve seat and low pressure oil circuit.Oil nozzle 7, needle-valve 6, spacing orifice plate 20, tight cap 5, needle-valve Returnning spring 4, needle-valve return spring holder 22, control piston 2 and oil injector body 3 have been formed the main body of low oil return pressure accumulation type Electromagnetic Control oil sprayer.Oil injector body 3 bottoms connect tight cap 5 and oil nozzle 7, and there are needle-valve 6 and oil holding slot 21 in oil nozzle 7 inside.Control chamber 15 is positioned at control piston 2 tops, and control piston 2 is all pressed to oil nozzle 7 through Returnning spring base 22 with needle-valve 6 with needle-valve Returnning spring 4.Spacing orifice plate 20 has played restriction needle-valve 6 lifts and the effect of supporting Returnning spring base 22.Under different operating modes, the input signal that electronic control unit is gathered engine sensor drives fuel injector magnetic system part 9, thus the unlatching or the shutoff of control control chamber 15 oil-feed oil circuits and draining oil circuit.When electromagnetic valve coil 19 was not switched on, double-sealing face control spool 14 was in the state of taking a seat under the effect of Returnning spring 18, and control chamber 15 oil-feed oil circuits are opened; The draining oil circuit turn-offs, and the high pressure fuel part in the pressure accumulation chamber 23 gets into the oil holding slot 21 in the oil nozzle 7, and a part gets into control chamber 15; This moment, oil holding slot 21 was identical with fuel pressure in the control chamber 15; Under the effect of needle-valve Returnning spring 22, oil-fuel injector needle-valve 6 is in the state of taking a seat, not oil spout of oil sprayer; During electromagnetic valve coil 19 energisings, double-sealing face is controlled spool 14 pull-ups, control chamber 15 oil-feed oil circuits turn-off; The draining oil circuit is opened; High pressure fuel in the control chamber 15 leaks in the low pressure oil circuit, and this moment, the oil pressure in the oil holding slot 21 was greater than the oil pressure in the control chamber 15, when pressure difference during greater than the reposition force of needle-valve Returnning spring 22; Needle-valve 6 rises the oil sprayer commencement of fuel injection.Pressure accumulation chamber 23 high-pressure oil pipe internal pressure fluctuation that fuel feeding causes the influence that can reduce to pulse simultaneously to injection process; Regulate fuel injection rate and the stability that guarantees jet pressure in injection process; Make high pressure fuel keep higher jet pressure as far as possible and spray into cylinder, and can reduce the mutual shadow between adjacent cylinder injection and the multi-injection.
Claims (5)
1. low oil-return type Electromagnetic Control oil sprayer; Comprise the solenoid valve part, control piston, Returnning spring, the oil nozzle part that link to each other successively that are installed in the oil injector body; Control piston is installed in the control cavity, and it is characterized in that: described solenoid valve partly comprises coil, electromagnet, armature, control valve core reseting spring, stop ring, the control spool that is installed in the electromagnetic valve body, and coil is installed in the electromagnet with the control valve core reseting spring; Armature connects electromagnet; The control spool is stuck on the armature through stop ring, and an end of control spool connects the control valve core reseting spring, and the other end of control spool connects the control cavity.
2. low oil-return type Electromagnetic Control oil sprayer according to claim 1; It is characterized in that: described oil nozzle partly comprises oil-fuel injector needle-valve, oil nozzle; Oil-fuel injector needle-valve is installed in the oil nozzle, forms oil holding slot between oil nozzle and the oil-fuel injector needle-valve, and oil holding slot is communicated with oil circuit.
3. low oil-return type Electromagnetic Control oil sprayer according to claim 1 and 2 is characterized in that: described oil nozzle partly connects Returnning spring through spacing orifice plate, and the needle-valve return spring holder is installed in the joint of spacing orifice plate and Returnning spring.
4. low oil-return type Electromagnetic Control oil sprayer according to claim 1 and 2 is characterized in that: also comprise the pressure accumulation chamber, the pressure accumulation chamber is communicated with oil holding slot and control cavity through oil pipe.
5. low oil-return type Electromagnetic Control oil sprayer according to claim 3 is characterized in that: also comprise the pressure accumulation chamber, the pressure accumulation chamber is communicated with oil holding slot and control cavity through oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103746532A CN102434346A (en) | 2011-11-23 | 2011-11-23 | Low oil-return type electromagnetic control oil sprayer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103746532A CN102434346A (en) | 2011-11-23 | 2011-11-23 | Low oil-return type electromagnetic control oil sprayer |
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| CN102434346A true CN102434346A (en) | 2012-05-02 |
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| CN2011103746532A Pending CN102434346A (en) | 2011-11-23 | 2011-11-23 | Low oil-return type electromagnetic control oil sprayer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184960A (en) * | 2013-03-26 | 2013-07-03 | 哈尔滨工程大学 | Marine electromagnetically-controlled heavy oil injector |
| CN104775955A (en) * | 2015-04-20 | 2015-07-15 | 烟台福尔精密机械有限公司 | Low-inertia center-mounted balance control valve type common-rail oil injector |
| CN105257362A (en) * | 2015-10-30 | 2016-01-20 | 中船动力研究院有限公司 | Common rail type air cylinder oil injection lubricating system |
| CN105351130A (en) * | 2015-11-27 | 2016-02-24 | 哈尔滨工程大学 | Pressurization no-leakage piezoelectric control type gas injection device |
| CN105508082A (en) * | 2015-11-27 | 2016-04-20 | 哈尔滨工程大学 | Pressurized leakage-free electromagnetically-controlled gas injection device |
| CN109162849A (en) * | 2018-10-11 | 2019-01-08 | 成都威特电喷有限责任公司 | A kind of electronically controlled unit pump fuel oil loop structure |
| CN112324972A (en) * | 2019-08-05 | 2021-02-05 | 伊希欧1控股有限公司 | Actuator for hydraulic valve and hydraulic valve |
| CN113464337A (en) * | 2021-06-16 | 2021-10-01 | 中船动力研究院有限公司 | Common rail injector of marine diesel engine |
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| US20030160110A1 (en) * | 2000-01-10 | 2003-08-28 | Friedrich Boecking | injection nozzle |
| DE102007000080A1 (en) * | 2006-02-08 | 2007-08-30 | Denso Corp., Kariya | Fuel injection valve, for an internal combustion motor, has a constant fuel feed to the outlet end where only the second needle is raised/lowered to open and close the two jet openings |
| CN101806266A (en) * | 2010-03-04 | 2010-08-18 | 哈尔滨工程大学 | Double-valve fuel injecting device with electric-control monoblock pump and electric-control fuel injector |
| CN101910605A (en) * | 2007-12-27 | 2010-12-08 | 卡特彼勒公司 | Over time motor and control valve assembly in operating have been reduced |
| CN202325953U (en) * | 2011-11-23 | 2012-07-11 | 哈尔滨工程大学 | Low-returning-oil electromagnetic control oil injector |
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2011
- 2011-11-23 CN CN2011103746532A patent/CN102434346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030160110A1 (en) * | 2000-01-10 | 2003-08-28 | Friedrich Boecking | injection nozzle |
| DE102007000080A1 (en) * | 2006-02-08 | 2007-08-30 | Denso Corp., Kariya | Fuel injection valve, for an internal combustion motor, has a constant fuel feed to the outlet end where only the second needle is raised/lowered to open and close the two jet openings |
| CN101910605A (en) * | 2007-12-27 | 2010-12-08 | 卡特彼勒公司 | Over time motor and control valve assembly in operating have been reduced |
| CN101806266A (en) * | 2010-03-04 | 2010-08-18 | 哈尔滨工程大学 | Double-valve fuel injecting device with electric-control monoblock pump and electric-control fuel injector |
| CN202325953U (en) * | 2011-11-23 | 2012-07-11 | 哈尔滨工程大学 | Low-returning-oil electromagnetic control oil injector |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184960A (en) * | 2013-03-26 | 2013-07-03 | 哈尔滨工程大学 | Marine electromagnetically-controlled heavy oil injector |
| CN103184960B (en) * | 2013-03-26 | 2015-06-17 | 哈尔滨工程大学 | Marine electromagnetically-controlled heavy oil injector |
| CN104775955A (en) * | 2015-04-20 | 2015-07-15 | 烟台福尔精密机械有限公司 | Low-inertia center-mounted balance control valve type common-rail oil injector |
| CN105257362A (en) * | 2015-10-30 | 2016-01-20 | 中船动力研究院有限公司 | Common rail type air cylinder oil injection lubricating system |
| CN105351130A (en) * | 2015-11-27 | 2016-02-24 | 哈尔滨工程大学 | Pressurization no-leakage piezoelectric control type gas injection device |
| CN105508082A (en) * | 2015-11-27 | 2016-04-20 | 哈尔滨工程大学 | Pressurized leakage-free electromagnetically-controlled gas injection device |
| CN105508082B (en) * | 2015-11-27 | 2018-07-24 | 哈尔滨工程大学 | It is pressurized No leakage electromagnetic control type fuel gas ejecting device |
| CN105351130B (en) * | 2015-11-27 | 2018-07-31 | 哈尔滨工程大学 | It is pressurized No leakage voltage control standard fuel gas ejecting device |
| CN109162849A (en) * | 2018-10-11 | 2019-01-08 | 成都威特电喷有限责任公司 | A kind of electronically controlled unit pump fuel oil loop structure |
| CN112324972A (en) * | 2019-08-05 | 2021-02-05 | 伊希欧1控股有限公司 | Actuator for hydraulic valve and hydraulic valve |
| CN113464337A (en) * | 2021-06-16 | 2021-10-01 | 中船动力研究院有限公司 | Common rail injector of marine diesel engine |
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Application publication date: 20120502 |