CN105793552A - Solenoid valve - Google Patents
Solenoid valve Download PDFInfo
- Publication number
- CN105793552A CN105793552A CN201480065351.9A CN201480065351A CN105793552A CN 105793552 A CN105793552 A CN 105793552A CN 201480065351 A CN201480065351 A CN 201480065351A CN 105793552 A CN105793552 A CN 105793552A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- bearing
- fluid
- output part
- armature pin
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
Abstract
Disclosed is a dosing unit (35) for a fuel injection system, comprising a solenoid valve (5) that includes an armature pin (16) which is mounted in two bearings (17a, 17b) and which cooperates with a fluid valve (22) of the dosing unit (35). The aim of the invention is to provide a fail-safer solenoid valve (5). In order to achieve said aim, the bearings (17a, 17b) are connected to a fuel-conducting region of the fluid valve (22) via a connection, and fuel is forced through the bearings under the control of the armature pin (16).
Description
Technical field
The present invention relates to a kind of electromagnetic valve, it has the armature pin being bearing at least one bearing, and described armature pin and fluid valve concur.
Background technology
This electromagnetic valve is known by DE102010062455A1.The design of this electromagnetic valve is for the metering units of the high-pressure pump of fuel injection system, especially common-rail injection system.This metering units has the fluid valve controlled by this electromagnetic valve, and this fluid valve includes the fluid valve piston being movably disposed within electromagnetic valve housing.Additionally, for handling the ingredient that the armature component of fluid valve is described electromagnetic valve.This armature component has supporting armature pin within the bearing, the carrying of described armature pin is arranged in the armature in armature chamber, and when surrounding the coil electricity of this armature pin, described armature pin is so adjusted: make the amount that fluid valve piston is adjusted for fuel stream regulate.Additionally, electromagnetic valve has filter element, described filter element filters and flows to the fuel of fluid valve piston and filter out foreign body that may be present from described fuel.
Summary of the invention
The task of the present invention is in that to provide a kind of electromagnetic valve, and this electromagnetic valve is modified in its operational reliability.
This task so solves: at least one bearing described is connected with a region guiding fluid of fluid valve by connecting portion.At this, the such configuration of this connecting portion so that by forced fluid flow mistake when described bearing has at least.Configuration according to the present invention is based on following cognition: install position on mountings depending on electromagnetic valve, aerofluxus especially can not occur best in the bearing region of electromagnetic valve.Is connected now by the region guiding fluid of connecting portion and fluid valve by least one bearing described and ensures: the fluid described bearing of arrival and be forced to flow through described bearing when having at least.It is achieved in being obviously improved of the aerofluxus at least one bearing described, lubrication and cooling.This measure improves the operational reliability of electromagnetic valve, and its reason is, even if also ensureing under the installation site adverse conditions of electromagnetic valve: at least one crucial bearing described is reliably lubricated.
In the expansion scheme of the present invention, described connecting portion is disposed upon the access aperture in electromagnetic valve housing.In principle, described connecting portion can be formed by arbitrary configuration.It is thus possible, for instance it is contemplated that: described connecting portion is produced by the leakage flow from the region of the described guiding fluid of fluid valve to bearing.However, to ensure that the Fluid Volume being always up limiting arrives bearing, the access aperture being placed in electromagnetic valve housing is advantageous for.At this, when manufacturing electromagnetic valve housing, described access aperture can produce with simple procedure of processing.
In the further configuration of the present invention, in the extended line region of armature pin, it is provided with fluid output part.This fluid output part advantageously makes described bearing can be forced to flow through.Fluid output part layout in armature pin extended line region can be simply completed and make it possible to control the fluid through-current capacity by least one bearing described, and described control also can be described later.Described fluid output part can at random configuration and be such as arranged in electromagnetic valve housing or be arranged in relative to axially or radially going up of armature pin in the electromagnetic valve tank being connected with this electromagnetic valve housing.
In the expansion scheme of the present invention, fluid output part has zero delivery restrictionDesired value will be adjusted by the fluid through-current capacity of at least one bearing described by this zero delivery restriction.At this, in the further configuration of the present invention, described through-current capacity is again 5 ls/h to 15 ls/h, is preferably 10 ls/h.When such through-current capacity, realize the reliable aerofluxus of bearing and thus also realize the cooling of the improvement of bearing and whole electromagnetic valve when lubricating film on the bearing insert improving bearing.
In the further configuration of the present invention, at least one bearing described is arranged between described connecting portion and described fluid output part.This layout ensures that at least one bearing described is reliably forced through-flow.
In the expansion scheme of the present invention, fluid output part is so controlled by the armature pin of electromagnetic valve, i.e. armature pin fluid intake in locked position of coupler locking fluid output part, and discharges this fluid intake at open position.At this, for instance arrange: under the open mode of fluid valve (in this condition, electromagnetic valve no power), the fluid intake in armature pin locking fluid output part.Therefore, Fluid Volume will be caused to lose by fluid output part under the open mode of fluid valve.Relatively, under the closed mode of fluid valve (in this condition, solenoid valves), the fluid intake in fluid output part is released so that under this running status, and at least one bearing described is forced to flow through.Thinking at this, when electromagnetic valve runs, the running status of locked position of coupler and open position about balances mutually so that realize at least one bearing described on a time period by reliably through-flow.Fluid intake in fluid output part also so can be controlled by armature pin: makes to realize the little through-current capacity by fluid output part at locked position of coupler, and at open position, is released by whole through-current capacities of fluid output part.
In the expansion scheme of the present invention, being respectively disposed with a bearing in electromagnetic valve housing and electromagnetic valve tank, and in further configuration, bearing above is tank bearing, described tank bearing is arranged in electromagnetic valve tank in side.At this, armature pin is additionally bearing in the second bearing being configured to housing bearing, and wherein, this housing bearing and described connecting portion are disposed adjacent to.Therefore, producing to pass through to receive via housing bearing armature chamber's fluid stream to tank bearing of electromagnetic valve armature from described connecting portion, described fluid stream flows out to fluid output part from tank bearing controllably.
In the expansion scheme of the present invention, fluid output part is connected with reflux pipe and reflux pipe is connected with fuel tank or is connected with the suction line leading to low-lift pump from fuel tank.Therefore, the fluid of outflow is exported from electromagnetic valve without problems.
In the expansion scheme of the present invention, electromagnetic valve is the parts of the metering units for fuel injection system for IC engine, and fluid is corresponding to fuel.This metering units can particularly advantageously use the electromagnetic valve according to the present invention, and, the operational reliability of electromagnetic valve and whole metering units is improved by the embodiment illustrated.
Accompanying drawing explanation
Other advantageous configuration of the present invention can be described by accompanying drawing and learn, describe embodiment illustrated in the accompanying drawings in detail in accompanying drawing describes.Accompanying drawing illustrates:
The simplification conspectus of Fig. 1 fuel injection system for IC engine, this fuel injection system has metering units, and this metering units has electromagnetic valve,
The sectional view of a kind of embodiment of Fig. 2 electromagnetic valve, this electromagnetic valve is as the parts of the metering units for fuel injection system.
Detailed description of the invention
Conspectus according to Fig. 1 illustrates the most important parts of the fuel injection system for internal combustion engine, and wherein, described fuel injection system is such as configured to the common-rail injection system of self-ignition formula internal combustion engine, and, fluid is diesel fuel especially.This fuel injection system has fuel tank 1, and diesel fuel is laid in this fuel tank 1.Fuel tank 1 is connected with low-lift pump 3 by suction line 2, and described low-lift pump can such as be configured to electrically-energized gear pump.Low-lift pump 3 is connected by low pressure line 4 with the metering units 35 with electromagnetic valve 5 and also is connected with overflow valve 6.The metering units 35 with electromagnetic valve 5 such as measures the fuel treating to be fed to the high-pressure pump element 7 of high-pressure pump 8 via through-flow connection 31 according to the running status of internal combustion engine.This high-pressure pump element 7 is integrated in high-pressure pump 8 and such as has pump piston, when camshaft rotary motion, the cam being arranged in high-pressure pump 8 cam chamber 9 of camshaft makes this pump piston move up and down by roller tappet.In pump piston moves downward, being introduced in the pump chamber of described high-pressure pump element via the fuel of through-flow connection 31 supply by entrance valve, in pump piston moves upward, described fuel is transported in unshowned high pressure accumulator via check-valves and pressure duct.Can being taken out fuel stored therein under the pressure until 3000bar by fuel injector controllably from high pressure accumulator, described fuel injector is for injecting fuel in the combustion chambers of internal combustion engines attached troops to a unit.Metering units 35 and overflow valve 6 are preferably integrated in the high-pressure pump housing of high-pressure pump 8 so that the through-flow connecting structure being connected between 31 and overflow valve 6 with cam chamber 9 between metering units 35 with high-pressure pump element 7 is that the inside in high-pressure pump 8 is through-flow to be connected.Import to the fuel cooling cam chamber 9 and the camshaft bearing of camshaft lubrication from overflow valve 6 and then pass through outflow pipeline 10 and be directed back in suction line 2 or be directed back in fuel tank 1.With the diagram in Fig. 1 differently, low pressure line 4 also can lead in cam chamber 9, and, metering units 35 and overflow valve 6 are then supplied from cam chamber 9 with fuel.
The electromagnetic valve 5 of metering units 35 has the fluid output part 11 illustrated in fig. 2 detailly, inserts zero delivery restriction 12 in this fluid output part, and this zero delivery restriction is individually arranged due to clearness reason in FIG.Fluid output part 11 or zero delivery restriction 12 are connected with suction line 2 by reflux pipe 13 or are connected with fuel tank 1.Zero delivery restriction 12 is such as designed as the through-current capacity with 10 ls/h.Except described parts, for instance defecator, pressure transducer and temperature sensor also can be installed in suction line 2 and/or low pressure line 4.
Fig. 2 illustrates the sectional view of metering units 35, and this metering units has electromagnetic valve 5 and the fluid valve 22 handled by this electromagnetic valve 5.Metering units 35 has electromagnetic valve housing 14, and in this electromagnetic valve housing, the armature component of electromagnetic valve 5 is bearing in bearing 17a, 17b by carrying the armature pin 16 of armature 15.At this, bearing 17a is tank bearing and bearing 17b is housing bearing.Armature 15 is arranged in armature chamber 18 and can move in armature chamber 18 together with armature pin 16, and, armature pin 16 can move in bearing 17a, 17b.Described being moved through causes to coil 19 energising, and this coil 19 is arranged in electromagnetic valve housing 14 and is kept by electromagnetic valve tank 20 and seal relative to surrounding.Being provided with electrical interface 21 on described electromagnetic valve tank, the electric connection of coil 19 can pass through this electrical interface and the connection continuing extension.
Armature pin 16 concurs with the same fluid valve 22 being arranged in electromagnetic valve housing 14, and this fluid valve 22 has the fluid valve piston 23 being axially movable.Fluid valve piston 23 is compressed armature pin 16 by spring 24, and described spring 24 is supported in the retaining ring 25 being fixed in electromagnetic valve housing 14.Fluid valve piston 23 has at least one sealing 26, and described sealing doughnut 27 in the position drawn with electromagnetic valve housing 14 concurs.Doughnut 27 self is connected with the input hole 28 in electromagnetic valve housing 14, and described input hole is in the low pressure line 4 in Fig. 1 in an appropriate manner and is connected.For this, metering units 35 such as with below, receive fluid valve 22 electromagnetic valve housing 14 part be placed in the notch of high-pressure pump 8 and seal, this notch is connected with low pressure line 4.At fluid valve 23 open position illustrated, doughnut 27 is connected by the interior room 29 of sealing 26 with the reception spring 24 of fluid valve piston 23, and this interior room self forms direct through-flow be connected with output portion 30.Output portion 30 directly with lead to high-pressure pump element 7 through-flow be connected 31 and connect.If fluid valve piston 23 is energized at coil 19 and thus causes armature pin 16 to move downward when moving, then the connection that sealing 26 moves in the region outside doughnut 27 and between input hole 28 and output portion 30 is cut off.In this case, low-lift pump 3 fuel quantity carried is derived by overflow valve 6.
Being also arranged access aperture 32 in electromagnetic valve housing 14, this access aperture is connected with the room guiding fuel, and the low portion of electromagnetic valve housing 14 is placed in the room of described guiding fuel.Being supplied fuel in fluid valve piston 23 room 33 above by access aperture 32, described fuel arrives in armature chamber 18 and further to bearing 17a along bearing 17b.The axially-extending line region of armature pin 16 is provided with fluid output part 11, this fluid output part be arranged in electromagnetic valve housing 14 or be arranged in in electromagnetic valve housing 14 or the adapter 36 that is connected with electromagnetic valve tank 20, fluid output part 11 is connected with tank room 35 by zero delivery restriction 12, and this zero delivery restriction is placed in electromagnetic valve tank 20 in this embodiment illustrated.But zero delivery restriction 12 also can directly be placed in fluid output part 11.At the armature pin 16 top final position illustrated, the volume of tank room 35 has its minima, and this tank room is connected with access aperture 32 by bearing 17a, 17b (such as by the configuration of corresponding Bearing gaps).But being because illustrating position at armature pin 16, passing into the entrance in zero delivery restriction 12 is close, and flows fluid output part 11 so not having fuel in the switching position illustrated from access aperture 32.When armature pin 16 moves downward, just there is fuel flowing, and subsequently form by shown in arrow, from access aperture 32 to adapter 35 the through-flow connection of fluid output part 11.When fluid valve piston 23 moves downward and connection between input hole 28 and output portion 30 is cut off, the open position of armature pin 16 produces.Thus, when not having fuel to continue to be transmitted to high-pressure pump element 7 from metering units, it is ensured that the especially effective aerofluxus of bearing 17a, 17b, lubrication and cooling.
Claims (11)
1. electromagnetic valve (5), have and be bearing at least one bearing (17a, armature pin (16) in 17b), described armature pin and fluid valve (22) concur, it is characterized in that, described bearing (17a, 17b) is connected with the region guiding fluid of described fluid valve (22) by connecting portion.
2. electromagnetic valve according to claim 1 (5), it is characterised in that described connecting portion is disposed upon the access aperture (32) in electromagnetic valve housing (14).
3. electromagnetic valve according to claim 1 and 2 (5), it is characterised in that be provided with the fluid output part (11) that be connected through-flow with described bearing (17a, 17b) in the extended line region of described armature pin (16).
4. electromagnetic valve according to claim 3 (5), it is characterised in that described fluid output part (11) has zero delivery restriction (12).
5. electromagnetic valve according to claim 4 (5), it is characterised in that be 5 ls/h to 15 ls/h by the through-current capacity of described zero delivery restriction (12), it is preferred to 10 ls/h.
6. according to electromagnetic valve in any one of the preceding claims wherein (5), it is characterised in that described at least one bearing (17a, 17b) is arranged between described connecting portion and fluid output part (11).
7. the electromagnetic valve (5) according to any one of claim 3 to 6, it is characterized in that, described fluid output part (11) is so controlled by described armature pin (16): described armature pin (16) enters the fluid intake of described fluid output part (11) in locked position of coupler locking, and discharges described fluid intake at open position.
8. according to electromagnetic valve in any one of the preceding claims wherein (5), it is characterised in that neutralize in electromagnetic valve tank (20) at electromagnetic valve housing (14) and be respectively disposed with a bearing (17a, 17b).
9. according to electromagnetic valve in any one of the preceding claims wherein (5), it is characterised in that described bearing (17a) is tank bearing.
10. the electromagnetic valve (5) according to any one of claim 3 to 8, it is characterized in that, described fluid output part (11) is connected with reflux pipe (13) and described reflux pipe is connected with case (1) or is connected with suction line (2).
11. according to electromagnetic valve in any one of the preceding claims wherein (5), it is characterised in that described electromagnetic valve (5) is the parts of the metering units (35) for fuel injection system for IC engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013224395.2A DE102013224395A1 (en) | 2013-11-28 | 2013-11-28 | magnetic valve |
| DE102013224395.2 | 2013-11-28 | ||
| PCT/EP2014/075575 WO2015078876A1 (en) | 2013-11-28 | 2014-11-25 | Solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105793552A true CN105793552A (en) | 2016-07-20 |
| CN105793552B CN105793552B (en) | 2019-07-09 |
Family
ID=51982567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480065351.9A Expired - Fee Related CN105793552B (en) | 2013-11-28 | 2014-11-25 | Solenoid valve |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3074624B1 (en) |
| CN (1) | CN105793552B (en) |
| DE (1) | DE102013224395A1 (en) |
| WO (1) | WO2015078876A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730085A (en) * | 2017-04-14 | 2018-11-02 | 康明斯公司 | Inexpensive common rail fuel system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016119063A1 (en) * | 2016-10-07 | 2018-04-12 | Eto Magnetic Gmbh | Electromagnetic valve device and use of such |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69414745T2 (en) * | 1993-04-09 | 1999-07-29 | Zexel Corp | Fuel injector |
| GB2345317B (en) * | 1998-12-28 | 2000-12-06 | Bosch Gmbh Robert | Fuel-injection system |
| KR20010067290A (en) * | 1999-12-27 | 2001-07-12 | 빌 시이 파나고스 | An electronic controlled diesel fuel injection system |
| DE102007052224A1 (en) * | 2007-10-31 | 2009-05-07 | Robert Bosch Gmbh | Volume control valve device for use in high pressure fuel pump, has pot-shaped magnetic flux housing including frame-like bracket element that encloses coil arrangement at opposite front sides, where bracket element is formed from plate |
| DE102008041362A1 (en) * | 2008-08-20 | 2010-02-25 | Robert Bosch Gmbh | Fuel supplying device for internal combustion engine in motor vehicle, has dosing valve and pressure control valve comprising closing members, which are connected together in rigid manner and are movable on corresponding movement axis |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2783890B1 (en) * | 1998-09-29 | 2000-12-01 | Eaton Corp | PRESSURE REGULATING SOLENOID VALVE |
| DE10225148B4 (en) * | 2002-06-06 | 2014-02-20 | Robert Bosch Gmbh | Injection device and method for its operation |
| JP2008169963A (en) * | 2007-01-15 | 2008-07-24 | Denso Corp | Flow control valve |
| DE102010043097A1 (en) * | 2010-10-29 | 2012-05-03 | Robert Bosch Gmbh | Pressure control valve |
| DE102010062455A1 (en) | 2010-12-06 | 2012-06-06 | Robert Bosch Gmbh | Metering unit and filter element |
| DE102011002979A1 (en) * | 2011-01-21 | 2012-07-26 | Robert Bosch Gmbh | Method for monitoring hydraulic pressure in inlet path of high pressure pump for high pressure fuel delivery in fuel injection system of internal combustion engine, involves interrupting fuel metering so that pressure deviation is produced |
-
2013
- 2013-11-28 DE DE102013224395.2A patent/DE102013224395A1/en not_active Withdrawn
-
2014
- 2014-11-25 EP EP14802890.5A patent/EP3074624B1/en not_active Not-in-force
- 2014-11-25 CN CN201480065351.9A patent/CN105793552B/en not_active Expired - Fee Related
- 2014-11-25 WO PCT/EP2014/075575 patent/WO2015078876A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69414745T2 (en) * | 1993-04-09 | 1999-07-29 | Zexel Corp | Fuel injector |
| GB2345317B (en) * | 1998-12-28 | 2000-12-06 | Bosch Gmbh Robert | Fuel-injection system |
| KR20010067290A (en) * | 1999-12-27 | 2001-07-12 | 빌 시이 파나고스 | An electronic controlled diesel fuel injection system |
| JP2001193602A (en) * | 1999-12-27 | 2001-07-17 | Detroit Diesel Corp | Electronically controlled diesel fuel injection system |
| DE102007052224A1 (en) * | 2007-10-31 | 2009-05-07 | Robert Bosch Gmbh | Volume control valve device for use in high pressure fuel pump, has pot-shaped magnetic flux housing including frame-like bracket element that encloses coil arrangement at opposite front sides, where bracket element is formed from plate |
| DE102008041362A1 (en) * | 2008-08-20 | 2010-02-25 | Robert Bosch Gmbh | Fuel supplying device for internal combustion engine in motor vehicle, has dosing valve and pressure control valve comprising closing members, which are connected together in rigid manner and are movable on corresponding movement axis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730085A (en) * | 2017-04-14 | 2018-11-02 | 康明斯公司 | Inexpensive common rail fuel system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013224395A1 (en) | 2015-05-28 |
| EP3074624B1 (en) | 2019-05-01 |
| EP3074624A1 (en) | 2016-10-05 |
| CN105793552B (en) | 2019-07-09 |
| WO2015078876A1 (en) | 2015-06-04 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20191125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |