EP3074624A1 - Magnetventil - Google Patents
MagnetventilInfo
- Publication number
- EP3074624A1 EP3074624A1 EP14802890.5A EP14802890A EP3074624A1 EP 3074624 A1 EP3074624 A1 EP 3074624A1 EP 14802890 A EP14802890 A EP 14802890A EP 3074624 A1 EP3074624 A1 EP 3074624A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solenoid valve
- fluid
- bearing
- valve
- fluid outlet
- 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
Definitions
- the invention relates to a solenoid valve, comprising an anchor bolt mounted in at least one bearing, which cooperates with a fluid valve.
- Such a solenoid valve is known from DE 10 2010 062 455 A1.
- This solenoid valve is for a metering unit of a high pressure pump one
- Fuel injection system in particular a common rail injection system designed.
- the metering unit has a controlled by the solenoid valve
- Fluid valve which comprises a valve disposed in a solenoid valve housing fluid valve piston. Furthermore, an armature assembly for actuating the fluid valve is part of the solenoid valve.
- the armature assembly has an armature pin mounted in a bearing, which carries an armature arranged in an armature space, and which is adjusted when energizing a surrounding coil so that the fluid valve piston is adjusted to control the amount of fuel flow.
- Fluid valve piston filters flowing fuel and filters out any foreign substances from the fuel.
- the invention has for its object to provide a solenoid valve, which is improved in terms of its operational reliability.
- Connection is connected to a fluid-conducting portion of the fluid valve. It is the connection designed so that the bearing is at least temporarily flowed through by the fluid at least temporarily.
- the embodiment of the invention is based on the knowledge that depending on the mounting position of the solenoid valve on an attachment a
- Venting especially in the storage area of the solenoid valve can not take place optimally.
- the at least one bearing is connected via a connection with a fluid-carrying region of the fluid valve, it is ensured that the bearing is reached by the fluid and at least temporarily flows through it.
- a significant improvement in the ventilation, lubrication and cooling in the at least one camp is achieved. This measure increases the
- connection is a recessed in a solenoid valve housing inlet bore.
- connection can be through any
- connection is given by a leakage flow from the fluid-carrying region of the fluid valve to the bearing. But to ensure that always passes a defined amount of fluid to the bearing, which is embedded in the solenoid valve housing
- Solenoid valve housing can be generated in a simple processing step.
- a fluid outlet is arranged in extension of the anchor bolt. This fluid outlet allows in a particularly advantageous manner a forced flow of the bearing.
- the fluid outlet can be configured arbitrarily and axially or radially to the anchor bolt, for example in the solenoid valve housing or one with the
- Solenoid valve housing connected solenoid valve can be arranged.
- the fluid outlet has a zero-feed throttle.
- the zero-feed throttle By means of the zero-feed throttle, the flow rate of fluid through the at least one bearing is set to a desired value.
- the throughput is again in a further embodiment of the invention 5 liters / hour (l / h) to 15 liters / hour, preferably 10 liters / hour. At such a throughput is a reliable
- the at least one bearing between the connection and the fluid outlet is arranged. This arrangement represents the
- the fluid outlet is dominated by the armature pin of the solenoid valve in the form that the armature pin blocks fluid entry into the fluid outlet in a blocking position and releases it in an open position. It is provided, for example, that in the opened state of the fluid valve, in which the solenoid valve is de-energized, the anchor bolt the fluid inlet into the
- Fluid output can also be controlled by the anchor bolt so that in the
- Blocking a low flow through the fluid outlet is made possible, while the blocking position, the full flow rate through the fluid outlet is released.
- a bearing is arranged in a solenoid valve housing and a magnetic valve pot and, in a further embodiment, the upper bearing is a pot bearing, which is arranged in the end in the solenoid valve pot.
- the anchor bolt is additionally mounted in the second bearing designed as a housing bearing, wherein the housing bearing is disposed adjacent to the connection.
- the solenoid valve is part of a metering unit for a fuel injection system of an internal combustion engine and the fluid accordingly fuel.
- the solenoid valve according to the invention can be used particularly advantageously and the reliability of the operating
- Solenoid valve and the whole metering unit is represented by the
- Figure 1 is a simplified circuit diagram of a fuel injection system a
- Figure 2 is a sectional view of one embodiment of a solenoid valve as part of a metering unit for a fuel injection system.
- FIG. 1 The circuit diagram of FIG. 1 gives the most important components of a
- Fuel injection system for example, designed as a common-rail injection system for a self-igniting internal combustion engine and the fluid is in particular diesel fuel.
- the fuel injection system has a tank 1 in which the diesel fuel is stored.
- the tank 1 is connected via a suction line 2 with a Low-pressure pump 3 connected, for example, as electrically operated
- Gear pump may be formed.
- the low-pressure pump 3 is connected via a
- the metering unit 35 with the solenoid valve 5 measures the fuel to be supplied to a high-pressure pump element 7 of a high-pressure pump 8 via a flow connection 31, for example in FIG.
- High-pressure pump element 7 is integrated in the high-pressure pump 8 and has, for example, a pump plunger which, via a roller tappet, is arranged by a cam arranged in a cam space 9 of the high-pressure pump 8
- Camshaft during a rotational movement of the camshaft is moved up and down.
- a downward movement of the pump piston is in a pump room of the
- High pressure pump element introduced via the flow connection 31 supplied fuel via an inlet valve, which in an upward movement of the
- Pump piston is conveyed via a check valve and a high-pressure line in a high-pressure accumulator, not shown. From the high-pressure accumulator can be stored under a pressure of up to 3,000 bar fuel of
- the metering unit 35 is like the spill valve 6 preferably in the high-pressure pump housing of
- High-pressure pump 8 is integrated, so that the flow connection 31st
- Camshaft bearing of the camshaft and is then guided via an outflow line 10 back into the suction line 2 or into the tank 1.
- the low pressure line 4 can also open into the cam space 9 and from this then the metering unit 35 and the
- Overflow valve 6 supplied with fuel.
- the solenoid valve 5 of the metering unit 35 has a fluid outlet 11 shown in detail in FIG. 2, into which a zero-delivery throttle 12 arranged separately in FIG. 1 for reasons of clarity is inserted.
- Zero feed throttle 12 is connected via a return line 13 to the suction line 2 or the Tank 1 connected.
- the zero-feed throttle 12 is designed, for example, such that it has a throughput of 10 liters / hour (l / h).
- Components can be installed, for example, in the suction line 2 and / or low-pressure line 4 still filter devices, pressure sensors and temperature sensors.
- FIG. 2 shows a sectional view of the metering unit 35 with the solenoid valve 5 and a fluid valve 22 actuated by the solenoid valve 5.
- the metering unit 35 has a solenoid valve housing 14 in which an armature assembly of the solenoid valve 5 is mounted in bearings 17a with an armature bolt 15 carrying an armature 15. 17b is stored.
- the bearing 17a is a pot bearing and the bearing 17b is a housing bearing.
- the anchor 17a is a pot bearing and the bearing 17b is a housing bearing.
- the anchor bolt 16 cooperates with the fluid valve 22 which is likewise arranged in the solenoid valve housing 14 and which has an axially displaceable one
- Fluid valve piston 23 has.
- the fluid valve piston 23 is pressed against the anchor bolt 16 by a spring 24, which is supported on a retaining ring 25 fastened in the solenoid valve housing 14.
- the fluid valve piston 23 has at least one slot 26 which in the position shown with an annular space 27 in the
- Solenoid valve housing 14 cooperates.
- the annular space 27 is in turn with
- Zulaufbohrept 28 are connected in the solenoid valve housing 14, which are in a suitable manner with the low-pressure line 4 of FIG. 1 in connection.
- the metering unit 35 is inserted and sealed, for example, with its lower part of the solenoid valve housing 14 receiving the fluid valve 22 into a recess of the high-pressure pump 8 which is connected to the low-pressure line 4.
- the fluid valve piston 23 of the annular space 27 is connected via the slots 26 with the spring 24 receiving interior 29 of the fluid valve piston 23, which in turn is in direct flow communication with an output 30.
- the outlet 30 is directly connected to the flow connection 31 to the
- Anchor bolt 16 moves down, the slots 26 are moved into an area outside the annular space 27 and the connection between the inlet bore 28 and the output 30 is shut off. In this case, that of the
- Low-pressure pump 3 delivered amount of fuel discharged through the overflow valve 6.
- an inlet bore 32 is further recessed, which is connected to the fuel-carrying space, in which the lower part of the solenoid valve housing 14 is inserted. Via the inlet bore 32, fuel is supplied to a space 33 above the fluid valve piston 23, which passes along the bearing 17b into the armature space 18 and further to the bearing 17a.
- the fluid outlet 11 is provided in the solenoid valve housing 14 or one with the solenoid valve housing 14 and the
- Solenoid valve 20 connected connection piece 36 is arranged.
- Fluid output 1 1 is on the zero feed throttle 12, in the illustrated
- Embodiment is inserted in the solenoid valve 20, connected to a pot chamber 35.
- the zero-feed throttle 12 can also be used directly in the fluid outlet 11.
- the pot chamber 35 whose volume at the illustrated upper end position of the anchor bolt 16 has its minimum value, via the bearings 17 a, 17 b, for example, by designing the corresponding bearing gaps with the
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013224395.2A DE102013224395A1 (de) | 2013-11-28 | 2013-11-28 | Magnetventil |
PCT/EP2014/075575 WO2015078876A1 (de) | 2013-11-28 | 2014-11-25 | Magnetventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3074624A1 true EP3074624A1 (de) | 2016-10-05 |
EP3074624B1 EP3074624B1 (de) | 2019-05-01 |
Family
ID=51982567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14802890.5A Not-in-force EP3074624B1 (de) | 2013-11-28 | 2014-11-25 | Magnetventil |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3074624B1 (de) |
CN (1) | CN105793552B (de) |
DE (1) | DE102013224395A1 (de) |
WO (1) | WO2015078876A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016119063A1 (de) * | 2016-10-07 | 2018-04-12 | Eto Magnetic Gmbh | Elektromagnetische Ventilvorrichtung sowie Verwendung einer solchen |
CN108730085A (zh) * | 2017-04-14 | 2018-11-02 | 康明斯公司 | 低成本共轨燃料*** |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0805270A3 (de) * | 1993-04-09 | 1998-02-11 | Zexel Corporation | Brennstoffeinspritzsystem |
FR2783890B1 (fr) * | 1998-09-29 | 2000-12-01 | Eaton Corp | Electrovanne de regulation de pression |
DE19860468A1 (de) * | 1998-12-28 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoffeinspritzanlage |
US6247450B1 (en) * | 1999-12-27 | 2001-06-19 | Detroit Diesel Corporation | Electronic controlled diesel fuel injection system |
DE10225148B4 (de) * | 2002-06-06 | 2014-02-20 | Robert Bosch Gmbh | Einspritzeinrichtung und Verfahren zu deren Betrieb |
JP2008169963A (ja) * | 2007-01-15 | 2008-07-24 | Denso Corp | 流量制御弁 |
DE102007052224A1 (de) * | 2007-10-31 | 2009-05-07 | Robert Bosch Gmbh | Mengensteuerventileinrichtung für eine Hochdruckkraftstoffpumpe, Verfahren zur Herstellung einer solchen Mengensteuerventileinrichtung und Hochdruckkraftstoffpumpe |
DE102008041362A1 (de) * | 2008-08-20 | 2010-02-25 | Robert Bosch Gmbh | Vorrichtung zur Versorgung einer Verbrennungskraftmaschine mit Treibstoff |
DE102010043097A1 (de) * | 2010-10-29 | 2012-05-03 | Robert Bosch Gmbh | Druckregelventil |
DE102010062455A1 (de) | 2010-12-06 | 2012-06-06 | Robert Bosch Gmbh | Zumesseinheit und Filterelement |
DE102011002979A1 (de) * | 2011-01-21 | 2012-07-26 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung des hydraulischen Drucks in einem Zulaufpfad einer Hochdruckpumpe sowie Zumesseinheit für eine solche Vorrichtung |
-
2013
- 2013-11-28 DE DE102013224395.2A patent/DE102013224395A1/de not_active Withdrawn
-
2014
- 2014-11-25 WO PCT/EP2014/075575 patent/WO2015078876A1/de active Application Filing
- 2014-11-25 EP EP14802890.5A patent/EP3074624B1/de not_active Not-in-force
- 2014-11-25 CN CN201480065351.9A patent/CN105793552B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN105793552B (zh) | 2019-07-09 |
WO2015078876A1 (de) | 2015-06-04 |
CN105793552A (zh) | 2016-07-20 |
EP3074624B1 (de) | 2019-05-01 |
DE102013224395A1 (de) | 2015-05-28 |
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