CN101535625B - Injector for injecting fuel - Google Patents
Injector for injecting fuel Download PDFInfo
- Publication number
- CN101535625B CN101535625B CN200780041616.1A CN200780041616A CN101535625B CN 101535625 B CN101535625 B CN 101535625B CN 200780041616 A CN200780041616 A CN 200780041616A CN 101535625 B CN101535625 B CN 101535625B
- Authority
- CN
- China
- Prior art keywords
- valve
- guide finger
- sparger
- follower
- pressure
- 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
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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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- 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
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- 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
- 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
- F02M63/008—Hollow valve members, e.g. members internally guided
Abstract
The invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine, comprising an injector housing, an upper housing part (25) and a center housing part (29), wherein an injection valve member, which opens or closes at least one injection opening, is activated via a control valve (1). The control valve (1) comprises a tappet (9), allowing a connection from a control chamber into a fuel return line to be opened or closed. A bore (15) is provided in the tappet (9), wherein a guiding pin (17) is received in this bore, is radially displaceable in relation to the injector housing (25, 39) and encloses a valve chamber (29) together with the wall of the bore (15) in the tappet (9). Said valve chamber is hydraulically connected with the control chamber. The guiding pin (17) is pressed against a contact surface by the pressure prevailing in the valve chamber (29), thus aligning the tappet (9).
Description
Technical field
The present invention relates to a kind of as described in the preamble, sparger of being used for fuel is sprayed into combustion chambers of internal combustion engines by claim 1.
Background technique
For fuel being introduced directly internal-combustion engine that spray, self ignition, use more and more the high-pressure accumulator-ejecting system (common rail system) of Stroke Control now.High-pressure accumulator-ejecting system by Stroke Control can make the load of jet pressure and internal-combustion engine and rotating speed adapt.
Usually use fuel injector in the high-pressure accumulator-ejecting system of Stroke Control, this fuel injector is by the operation of 2/2-way control valve.The control room is connected with fuel input part of inputting the fuel in pressure system by it by the 2/2-way control valve or is connected with fuel return section in the area of low pressure.Therefore, the pressure in the control room can be set as system pressure or return pressure.Pressure-acting in the control room is on control piston, and this control piston is connected with injection valve member again.When the mesohigh of control room, injection valve member is placed in its seat, and sprays closure of openings.When the mesolow of control room, injection valve member lifts from its seat, and fuel is injected into internal-combustion engine.
For the discharging that reduces internal-combustion engine and realize high specific power, fuel need to be sprayed in the firing chamber of internal-combustion engine with higher jet pressure.Because the jet pressure that requires is more and more higher, the requirement of 2/2-way control valve is also being changed.The control valve that uses now is by the connection of spherical closing element closing control chamber to fuel return section.Closing element is placed on its seat by the pressure in pressure piece, armature bolt and the spring overcoming control room, and for opening control valve, the armature bolt overcomes elastic force by means of magnetic loop and raises.Because when spraying increase, need larger elastic force, so that closed control valve also must apply larger magnetic force for opening control valve.When jet pressure during greater than 1800bar, should only under the condition of difficulty, just can be held by principle well known in the prior art.
Summary of the invention
In being used in the sparger of the firing chamber burner oil of internal-combustion engine by the present invention structure, this sparger has case of sprayer, in this case of sprayer, discharge or close at least one injection valve member that sprays opening and control by control valve, this control valve comprises valve follower, can discharge or close by the connection of control room to fuel return section by this valve follower.Design is porose in valve follower, accommodates guide finger in this hole, and the wall in the hole in guide finger and the valve follower surrounds and the valve chamber of control room hydro-joining, and wherein, guide finger is crushed on the supporting surface by the pressure in the valve chamber, and valve follower is directed thus.
As by commonly known in the art, at the control valve that is used for fuel injector, the armature of valve follower or solenoid valve is directed to by the guide element that is fixedly connected with fuel injector.The armature guide rail need to be integrated in the magnet acceptance division at this, this causes complex structure and expensive parts.Advantage by sparger of the present invention sparger relatively commonly known in the art is that guide finger is crushed on the stop surface with the large power from valve chamber owing to high jet pressure.This power can be as the impacting force of guide finger.Therefore guide finger remains on its position.In order to make valve follower directed by guide finger, guide finger is preferably vertically directed on described supporting surface in the situation of flat seat.Otherwise if guide finger can move radially in the position, valve follower aligns with seat in this position, and then spheric seat is preferred.Therefore, guide finger and magnet carrier needn't be fabricated to parts.Being divided into two-part by magnet and guide finger has formed and simply has been easy to the parts made.Therefore reduced manufacturing expense.
In the first form of implementation, guide finger is resting on the case of sprayer by the pressure in the valve chamber, and remains on thus on its position.Yet as an alternative, also can hold at least one other parts between guide finger and case of sprayer, wherein, guide finger is resting on these other parts.These other parts for example are resting on the case of sprayer by pressure and elastic force in case of necessity.Yet these other parts also can be constructed integratedly with case of sprayer, and for example form the part of magnetic assembly.
If guide finger is resting on the case of sprayer by the pressure in the valve chamber and remains on thus on its position, preferably, in guide finger design one enlarged configuration, this enlarged configuration leans against on the case of sprayer with the one side, and in its opposite side effect the spring element that is designed to pressure spring is arranged, this spring element is contained between enlarged configuration and the valve follower.Be contained in the enlarged configuration of guide finger and the advantage of the spring element between the valve follower and be, owing to the elastic force on the enlarged configuration that is applied and acted on by spring element on the guide finger, this guide finger is pressed in this enlarged configuration and sprays on the housing.Therefore, even if also enough large when making guide finger be resting on the pressure drop of power in valve chamber on the case of sprayer to return pressure, so that guide finger remains on its position.
In a kind of preferred form of implementation, control valve is eletromagnetic-operating, and is configured with the armature of solenoid-operated control valve at valve follower.By armature is configured on the valve follower, can reduce the number of required parts.Can construct compactly sparger in addition.By armature being configured in the quality that has also reduced moving element on the valve follower, so that can open fast and closed control valve.
Preferably construct the closing element of an annular at valve follower.At this, this annular closing element is preferably constructed in this wise, so that the internal diameter of the closing element of the diameter in the hole in the valve follower and annular is approximate the same large.By approximately uniform diameter, so that valve follower is pressure balanced.Therefore, do not need to apply power extra, that react on the pressure in the valve chamber for closed control valve.Need less power to cause to open and close rapidly control valve.Course of injection can be suitable with the operating conditions of internal-combustion engine better.
The closing element of the annular on the valve follower for example is designed to sealing surface, and the sealing face can be placed in the valve seat.Because the closing element of annular is designed to sealing surface, with the closing movement of trimmer valve push rod and therefore reduced wearing and tearing.For closed control valve, the valve seat that the closing element of annular is placed in one for example is configured to flat seat, conical seat or spheric seat.In a kind of preferred form of implementation, the closing element of annular is the sealing surface of conical configuration, and valve seat is configured to sphere.The advantage of this structure is the parallelism requirement of supporting surface and the valve seat proposition of guide finger not being increased.The sphere of valve seat has the movable joint function, wherein, realizes compensation to possible misalignment of axe by guide finger moving radially on its supporting surface.In addition, when the relative sparger axis of valve piston tilted, the valve seat that is designed to sphere also allowed hermetically closed control valve of convection cell.
Description of drawings
Shown in the drawings of form of implementation of the present invention, and these forms of implementation will describe in detail in the following description.
Among the figure:
Fig. 1 is the first form of implementation by the control valve of the present invention's structure;
Fig. 2 is the second form of implementation by the control valve of the present invention's structure;
Fig. 3 constructs, has the control valve of taper/spheric seat by the present invention.
Embodiment
Fig. 1 shows the first form of implementation by the control valve of the present invention's structure.
Be used for to the sparger of the firing chamber burner oil of internal-combustion engine, an injection valve member is by means of control valve 1 control, and described injection valve member opens or closes at least one and sprays opening.Control valve 1 is handled by actuator 3.Shown in form of implementation in, actuator 3 is electromagnetic actuators.This actuator comprises the coil 5 that is contained in the magnetic core 7.As an alternative, also can substitute electromagnetic actuators and use other actuator, for example piezoelectric actuator.
Because the leakage flow that the high fuel pressure in the valve chamber may occur between hole 15 and guide finger 17 keeps less, the surface of hole 15 and guide finger 17 is so mutually adaptive, so that sealing surface is played on the surface of hole 15 and guide finger 17 in order to make.
For making valve follower 9 motions by actuator 3, in illustrated form of implementation, be configured with armature 35 at valve follower 3.The stroke of valve follower 9 is regulated by the regulating ring 37 that is contained between upper shell spare 25 and the middle casing spare 39.At this, by height h adjustment the trip of regulating ring 37.
Upper shell spare 25 and middle casing spare 39 interconnect by closing sleeve 41.For this reason, closing sleeve is bearing on the convex shoulder 43 of upper shell spare 25, and is tightened on the middle casing spare by screw thread 45.For the fuel in the sparger can not flowed out along the joint between upper shell spare 25 and the middle casing spare 39, between upper shell spare 25 and middle casing spare 39, accommodate seal ring 47.
Because the elastic force of spring element 49, this elastic force acts on the enlarged configuration 21 on the guide finger 17, so that guide finger 17 is pressed on the upper shell spare 25 by adjustment disk 51.In addition, the pressure-acting in the valve chamber 29 is on guide finger 17.At this, this pressure is relevant with the fuel pressure in the valve chamber 29.When control valve 1 is closed, keeping system pressure in the valve chamber 29.When control valve 1 was opened, the pressure drop in the valve chamber was because fuel flows in the area of low pressure of ejecting system afterwards.Therefore, when control valve 1 was opened, the pressure that acts on the guide finger 17 also descended.Yet because the elastic force of spring element 49 also continues to act on the guide finger 17 when control valve 1 is opened, this guide finger keeps being resting on the face 23, and valve follower 9 aligns with valve seat 13 thus.
Be the beginning course of injection, coil 5 is energized.Wound coil is capable thus becomes magnetic field, armature 35 since magnetic field be attracted.Valve follower 9 lifts from valve seat 13 by the closing element 11 of structure armature thereon with annular.Be released by the connection of valve chamber 29 to fuel return section.Pressure drop in the valve chamber 29.Because the pressure drop in the valve chamber 29, fuel flows out from the control room that does not illustrate at this by the passage 31 with throttling unit 33.Pressure in the control room descends equally.Because pressure drop in the control room, control piston moves towards the control room.Injection valve member lifts from its seat, and discharges described at least one injection opening.Fuel is injected in the firing chamber of internal-combustion engine.
During opened and fuel can flow into areas of low pressure from valve chamber 29 at control valve 5, the pressure drop in the valve chamber 29 thus, the pressure that therefore acts on the guide finger 17 also descends.Yet because spring element 49 applies elastic force in enlarged configuration 21, guide finger 17 continues to be pressed on the upper shell spare 25, and therefore remains on its position.In addition, pressure in the valve chamber 29 does not drop to the pressure in the area of low pressure yet, because be connected with the fuel input part in this unshowned control room, and the fuel that therefore is under the system pressure replenishes the ramp metering chamber continuously, and then described fuel flow into valve chambers 29 by passage 30 and throttling unit 33.
Be the end injection process, the power supply of coil 5 is moved to end.Valve follower 9 is placed in the valve seat 13 with its annular closing element 11 by means of the elastic force of spring element 49.Be closed by the connection of valve chamber 29 to the area of low pressure.The fuel that replenishes in the ramp metering chamber causes the pressure in the control room to raise, and therefore also causes raising by the pressure in the valve chamber 29 of passage 31 and throttling unit 33 and control room hydro-joining.Acting on again the pressure that the fuel under the system pressure is arranged on the guide finger 17.Simultaneously, because higher pressure in the control room, control piston moves towards injection valve member, and therefore injection valve member is placed in its seat, in order to close described at least one injection opening.
Fig. 2 shows the second form of implementation by the control valve of the present invention's structure.
The difference of the control valve shown in Fig. 2 and control valve shown in Figure 1 is the structure of guide finger 17.
In the form of implementation shown in this, between guide finger 17 and upper shell spare 25, accommodate other parts 53.Be configured with enlarged configuration 21 at these other parts 53, spring element 49 relative these enlarged configuration are supported.Guide finger 17 is resting on these other parts 53 by end face 55.Guide finger 17 remains on its position by the pressure that acts in the valve chamber 29 on this guide finger.Simultaneously, the pressure that acts on the guide finger 17 is delivered on the described other parts 53 by end face 55.Therefore, these other parts 53 are resting on the upper shell spare 25 by enlarged configuration 21.Simultaneously effect has the elastic force of spring element 49 on upper shell spare 53, and this elastic force makes these other parts be resting on the upper shell spare 25 equally.Described other parts 53 remain on its position in this way.Even if by the pressure in the valve chamber 29 when control valve 1 is opened also owing to replenish the fuel that flow into and do not drop to external pressure by control room and passage 31, so that guide finger 10 also keeps being resting on the described other parts 53 in form of implementation shown in Figure 2, thus, valve follower 9 aligns with valve seat 13.As an alternative, these other parts 53 also can consist of integratedly with upper shell spare 25.
Fig. 3 shows the third form of implementation by the control valve of the present invention's structure.
The difference of the form of implementation shown in the control valve 1 shown in Fig. 3 and Fig. 1 is the structure of the closing element 11 of valve seat 13 and annular.In form of implementation shown in Figure 3, the closing element 11 of annular is configured with the sealing surface of taper.Valve seat 13 is designed to sphere.The advantage that is configured to spherical valve seat 13 relative flat seats is, valve seat 13, and the face 23 that abuts on the upper shell spare 25 of the sealing surface of the closing element 11 of annular and enlarged configuration 21 needn't be made for the closing exactly parallelly of convection cell sealing of realizing valve 1.Because valve seat 13 is configured to sphere, this valve seat has the movable joint function.Like this, even if the sealing surface inaccuracy of the conical configuration of the closing element 11 of annular is constructed abreast, also can guarantee closing of convection cell sealing.The possible misalignment of axe of guide finger 17 will be compensated by guide finger 17 moving radially on face 23.
Except shown in Figure 3, be configured to spherical valve seat and be configured to sealing surface on the closing element 11 taper, annular, also the closing element 11 of valve seat 13 and annular can be configured to flat seat.As an alternative, valve seat 13 also can be taper, and the closing element 11 of annular is provided with the sealing surface of taper, wherein, the valve seat 13 of taper preferably differs 1 ° to 5 ° with the cone angle that is designed to the sealing surface of taper, so that the surface pressure of closing element 11 in the valve seat 13 that is configured to taper of annular concentrates on the line.Yet closing element 11 and the valve seat 13 of annular also can have arbitrarily, as well known to those skilled in the art and suitable geometrical construction.
Claims (9)
1. be used for injecting fuel into the sparger of combustion chambers of internal combustion engines, has a case of sprayer that comprises a upper shell spare (25) and a middle casing spare (39), in this sparger, one discharges or seals at least one injection valve member that sprays opening and controlled by a control valve (1), wherein, described control valve (1) comprises a valve follower (9), connection can discharging or seal from a control room to a fuel return section by this valve follower, in described valve follower (9), be configured with a hole (15), one guide finger (17) is contained in this hole, the wall encirclement one in the described hole (15) in this guide finger and the described valve follower (9) and the valve chamber (29) of described control room hydraulic connecting, wherein, described guide finger (17) is crushed on the supporting surface by the pressure in the described valve chamber (29), described valve follower (9) is positioned thus, it is characterized in that, described guide finger (17) is pressed on the described upper shell spare (25) by the pressure in the described valve chamber (29), and remain on thus on its position, described hole (15) play a part the guide rail of described valve follower (9) and thus described valve follower (9) be directed at described guide finger (17).
2. sparger as claimed in claim 1, it is characterized in that, between described guide finger (17) and described upper shell spare (25), held at least one other parts (53), wherein, described guide finger (17) is pressed on the described other parts (53), and described other parts (53) are pressed on the described upper shell spare (25) by this pressure, and thus, described other parts (53) remain on its position.
3. sparger as claimed in claim 1 or 2, it is characterized in that, be configured with an enlarged configuration (21) at described guide finger (17), this enlarged configuration is pressed on the described upper shell spare (25) with a side, and in its opposite side effect one spring element (49) that is configured to pressure spring is arranged, this spring element is contained between described enlarged configuration (21) and the described valve follower (9).
4. sparger as claimed in claim 1 or 2 is characterized in that, described control valve (1) is solenoid-operated, is configured with the armature (35) of this solenoid-operated control valve (1) at described valve follower (9).
5. sparger as claimed in claim 1 or 2 is characterized in that, has constructed the closing element (11) of an annular at described valve follower (9).
6. sparger as claimed in claim 5 is characterized in that, the internal diameter of the diameter in the hole (15) in the described valve follower (9) and the closing element (11) of described annular is similar to formed objects.
7. sparger as claimed in claim 5 is characterized in that, the closing element (11) of the annular on the described valve follower (9) is configured to sealing surface, and the sealing face can be placed in the valve seat (13).
8. sparger as claimed in claim 7 is characterized in that, described valve seat (13) is configured to flat seat, conical seat or spheric seat.
9. sparger as claimed in claim 7 is characterized in that, the closing element of described annular (11) has the sealing surface of taper ground structure, and described valve seat (13) is configured to sphere.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006053128.0 | 2006-11-10 | ||
| DE102006053128A DE102006053128A1 (en) | 2006-11-10 | 2006-11-10 | Injector for injecting fuel |
| PCT/EP2007/059530 WO2008055724A1 (en) | 2006-11-10 | 2007-09-11 | Injector for injecting fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101535625A CN101535625A (en) | 2009-09-16 |
| CN101535625B true CN101535625B (en) | 2013-01-02 |
Family
ID=38989898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780041616.1A Expired - Fee Related CN101535625B (en) | 2006-11-10 | 2007-09-11 | Injector for injecting fuel |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2092187B1 (en) |
| CN (1) | CN101535625B (en) |
| AT (1) | ATE535704T1 (en) |
| DE (1) | DE102006053128A1 (en) |
| WO (1) | WO2008055724A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006057025A1 (en) | 2006-12-04 | 2008-06-05 | Robert Bosch Gmbh | Fuel injector for injecting fuel into combustion chamber of internal combustion engine, has pressure-compensating magnetic valve with valve element that opens or locks valve seat, where valve element or piece of valve has spherical surface |
| DE102007018472A1 (en) * | 2007-04-19 | 2008-10-23 | Robert Bosch Gmbh | Fuel injector with solenoid valve |
| DE102007025614A1 (en) * | 2007-06-01 | 2008-12-04 | Robert Bosch Gmbh | Armature stroke adjustment for solenoid valve |
| DE102007025961A1 (en) * | 2007-06-04 | 2008-12-11 | Robert Bosch Gmbh | injector |
| DE102007025964A1 (en) * | 2007-06-04 | 2008-12-11 | Robert Bosch Gmbh | Hydraulic valve for a fuel injector |
| DE102007044357A1 (en) * | 2007-06-21 | 2008-12-24 | Robert Bosch Gmbh | Control valve for a fuel injection valve |
| DE102007047425A1 (en) | 2007-10-04 | 2009-04-09 | Robert Bosch Gmbh | Control valve for a fuel injector |
| DE102009000284A1 (en) | 2009-01-19 | 2010-07-22 | Robert Bosch Gmbh | Fuel injection valve device for injection of fluid from high pressure chamber into combustion chamber of internal combustion engine, has retaining body interrupting connection so that retaining pressure is larger than return pressure |
| JP5689395B2 (en) * | 2011-09-28 | 2015-03-25 | ナブテスコ株式会社 | solenoid valve |
| DE102014205517A1 (en) | 2014-03-25 | 2015-10-01 | Robert Bosch Gmbh | Switching valve for a fuel injector and fuel injector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755097A (en) * | 2004-09-27 | 2006-04-05 | 株式会社京浜 | Fuel injection valve |
| CN1802497A (en) * | 2003-09-01 | 2006-07-12 | 丰田自动车株式会社 | Fuel injection system of internal combustion engine |
| CN1853042A (en) * | 2003-09-19 | 2006-10-25 | 博世株式会社 | Fuel injection valve for internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10118053A1 (en) * | 2001-04-11 | 2002-10-24 | Bosch Gmbh Robert | Valve for controlling liquids e.g. for vehicle fuel injection system, has hydraulic chamber that transfers control piston movement to actuating piston, which is in hydraulic force equilibrium with valve element closed |
| DE602004004254T2 (en) * | 2004-06-30 | 2007-07-12 | C.R.F. S.C.P.A. | Servo valve for controlling an injection valve of an internal combustion engine |
| DE102006021736A1 (en) * | 2006-05-10 | 2007-11-15 | Robert Bosch Gmbh | Fuel injector with pressure compensated control valve |
| DE102006021741A1 (en) * | 2006-05-10 | 2007-11-15 | Robert Bosch Gmbh | Fuel injector with pressure compensated control valve |
-
2006
- 2006-11-10 DE DE102006053128A patent/DE102006053128A1/en not_active Withdrawn
-
2007
- 2007-09-11 CN CN200780041616.1A patent/CN101535625B/en not_active Expired - Fee Related
- 2007-09-11 AT AT07820133T patent/ATE535704T1/en active
- 2007-09-11 EP EP07820133A patent/EP2092187B1/en not_active Not-in-force
- 2007-09-11 WO PCT/EP2007/059530 patent/WO2008055724A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802497A (en) * | 2003-09-01 | 2006-07-12 | 丰田自动车株式会社 | Fuel injection system of internal combustion engine |
| CN1853042A (en) * | 2003-09-19 | 2006-10-25 | 博世株式会社 | Fuel injection valve for internal combustion engine |
| CN1755097A (en) * | 2004-09-27 | 2006-04-05 | 株式会社京浜 | Fuel injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008055724A1 (en) | 2008-05-15 |
| DE102006053128A1 (en) | 2008-05-15 |
| CN101535625A (en) | 2009-09-16 |
| EP2092187A1 (en) | 2009-08-26 |
| EP2092187B1 (en) | 2011-11-30 |
| ATE535704T1 (en) | 2011-12-15 |
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