EP0840009B1 - Hochdruckpumpe - Google Patents
Hochdruckpumpe Download PDFInfo
- Publication number
- EP0840009B1 EP0840009B1 EP97110986A EP97110986A EP0840009B1 EP 0840009 B1 EP0840009 B1 EP 0840009B1 EP 97110986 A EP97110986 A EP 97110986A EP 97110986 A EP97110986 A EP 97110986A EP 0840009 B1 EP0840009 B1 EP 0840009B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- valve
- pump
- low
- pressure pump
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/464—Inlet valves of the check valve type
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/06—Pumps peculiar thereto
-
- 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
- F02M59/367—Pump inlet valves of the check valve type being open when actuated
-
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
- F04B49/243—Bypassing by keeping open the inlet valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
Definitions
- the invention relates to a high pressure pump according to the Genus of the main claim.
- a high pressure pump is known (EP 0 481 964 A2).
- Such high pressure pumps are used for fuel injection Diesel engines used. You are between a low pressure tank and a high-pressure accumulator (rail) arranged and ensure that there is sufficient fuel in the high-pressure accumulator Amount and under sufficient high pressure available stands to control the working cylinders via injectors to supply the internal combustion engine with fuel.
- FIG. 1 shows a first embodiment of the High pressure pump in the suction stroke
- Figure 2 after the high pressure pump 1 before the start of delivery
- 3 the high pressure pump according to FIG. 1 after the start of funding
- FIG. 4 another embodiment the high pressure pump
- Figure 5 shows a second variant the high pressure pump.
- a high pressure pump 1 is used as a diesel injection pump and is for filling a high pressure accumulator 2 (also Rail called) determined.
- a high pressure accumulator 2 also Rail called
- Injectors not shown, connected via which in a manner not shown, the working cylinder an internal combustion engine with precisely measured quantities powered by diesel fuel.
- the high-pressure pump 1 has a pump piston 3, which has a Tappet, not shown, in a pump cylinder 4 and is movable here and that as a movable wall is a working chamber 5 of the high pressure pump 1 limited.
- a high pressure line 6 leads from the working chamber 5 to the high pressure accumulator 2; in it is an opening to the high pressure accumulator 2 Check valve 7 used.
- a solenoid valve 9 is used so that it is designed as a ball Closing body 10 against the force of a valve spring 11 alone from the suction pressure in the inlet line 8 from its valve seat 12 can be lifted off. Closing body 10, valve spring 11 and Valve seat 12 thus form an independent check valve.
- a valve lifter 13 is connected, which can be moved under magnetic force and then keeps the closing body 10 away from its valve seat 12.
- a low pressure pump 14 belongs to the device, a low pressure tank 15 and a check valve or Low pressure relief valve 16 in a low pressure circuit 17th
- FIG 1 shows the high pressure pump 1 during the suction stroke.
- fuel from the low pressure circuit 17 passes through the inlet line 8 (arrow direction) and against the force of the Valve spring 11 lifted from its valve seat 12 valve closing body 10 into the working chamber 5.
- the solenoid valve 9 is without electricity.
- the solenoid valve 9 switched off. As shown in Figure 3 arrives the closing body 10 under the influence of the force of Valve spring 11 and under flow forces on its valve seat 12. The solenoid valve is closed. In the work chamber 5 of the high pressure pump 1 begins to build up pressure, and Diesel fuel is released through the check valve that opens 7 and via the high pressure line 6 (arrow direction) in the High pressure accumulator 2 promoted. The low pressure pump 14 promotes into the low pressure circuit 17.
- the high-pressure pump 1 constructed according to the invention with the one described Mode of operation has the following advantages: It is enough a relatively small and simple magnet to make it through the Liquid flow already closed valve closing body 10 to keep in its open position.
- a change in delivery rate is due to the quick response the pressure control when closing the solenoid valve 9 slightly perform.
- the structure of the high-pressure pump 1 is also notable Simplicity out by neither a handlebar regulation nor a Control edge still a control bore another control magnet for a position control loop is necessary. Furthermore, the Tappet for high pressure pump 1 must be installed from above. The high-pressure pump 1 can also be without bottom capsules be carried out.
- FIG 4 shows using the same reference numbers for the execution according to Figures 1 to 3 corresponding Share another type of high pressure pump 18.
- a pump piston 19 is provided with a connecting channel 20, via the connection in the TDC, i.e. at the end of the delivery stroke between a working chamber 21 of the high pressure pump 18 and the low pressure container 15 is produced.
- the connecting channel 20 consists in detail of a Longitudinal channel 22 and an annular groove 23 in the pump piston 19. Die Annular groove 23 forms one with a bore 24 in a wall 25 Pump cylinder 26 a spool valve 27, by the edges of the annular groove 23 the mouth of the bore 24 run over in the wall 25 of the pump cylinder 26.
- the This type of construction differs from the following Figures 1 to 3 in that here a metering for the High-pressure accumulator 2 and a shutdown before TDC enables is. There is also a larger diameter of the pump piston conceivable.
- FIG. 5 shows a type with a high pressure pump 28, which does not have its own fuel connection.
- a pressure valve assembly 29 are a combined solenoid valve 30 with closing body 31, valve spring 32 and valve seat 33 and a check valve 34 summarized, and this Pressure valve assembly is with a working chamber 35 High pressure pump 28 in connection.
- Check valve 34 monitors the high pressure line 6 to the high pressure accumulator 2, and a ring connection 36 is provided on the solenoid valve 30, to which the low pressure circuit 17 is connected. In the Operation is the same as that of FIGS. 1 to 3, so that a repeated description is unnecessary.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
- Magnetically Actuated Valves (AREA)
Description
Claims (5)
- Hochdruckpumpe, insbesondere zur Kraftstoffeinspritzung für Dieselmotoren mit einem stößelbetriebenen Pumpenkolben (3;19), der in einem Pumpenzylinder (4;26) hin- und herbeweglich ist, und mit einem aus einem Magneten und einem Rückschlagventil bestehenden Elektro-Magnetventil (9;30), das sowohl den Zufluß von Kraftstoff von einem Niederdruckkreislauf (17) zu einer Arbeitskammer (5;21;35) im Pumpenzylinder (4;26) als auch einen Rückfluß von Kraftstoff aus der Arbeitskammer (5;21;35) zum Niederdruckkreislauf (17) überwacht, sowie mit einem in eine von der Arbeitskammer (5;21;35) zu einem Hochdruckspeicher (2) führende Hochdruckleitung (6) eingesetzten Rückschlagventil (7;34), dadurch gekennzeichnet, daß das Rückschlagventil des Elektro-Magnetventils (9;30) einen Schließkörper (10;31) aufweist, der von einem Ventilstößel (13) des Elektro-Magnetventils (9;30) bei bestromtem Magneten in Ventil-Offenstellung haltbar ist und daß der Hochdruck-Förderbeginn der Hochdruckpumpe (1;18;28) durch ein Entregen des Magneten des Elektro-Magnetventils (9;30) einleitbar ist.
- Hochdruckpumpe nach Anspruch 1, dadurch gekennzeichnet, daß im Pumpenkolben (19) ein Verbindungskanal (20) vorgesehen ist, über den im oberen Totpunkt (OT) bei Förderende eine Verbindung zwischen der Arbeitskammer (21) der Hochdruck-pumpe (18) und einem Niederdruckbehälter (15) des Niederdruckkreislaufs (17) herstellbar ist.
- Hochdruckpumpe nach Anspruch 2, dadurch gekennzeichnet, daß der Verbindungskanal (20) durch mindestens einen Längs-kanal (22) und eine Ringnut (23) im Pumpenkolben (19) gebildet ist und daß die Verbindung der Arbeitskammer (21) mit dem Niederdruckbehälter (15) durch ein steuerschieberartiges Ventil herstellbar ist, das durch die Kanten der Ringnut (23) und eine Bohrung (24) in einer Wand (25) des Pumpenzylinders (26) gebildet ist.
- Hochdruckpumpe nach Anspruch 1, dadurch gekennzeichnet, daß diese einen das Elektro-Magnetventil (30) und das zum Hochdruckspeicher (2) hin öffnende Rückschlagventil (34) beinhaltenden Druckventilverbund (29) aufweist, der mit der Arbeitskammer (35) der Hochdruckpumpe (28) in Verbindung steht und daß an den Druckventilverbund (29) sowohl der Niederdruckkreislauf (17) als auch der Hochdruckspeicher (2) angeschlossen sind.
- Hochdruckpumpe nach Anspruch 4, dadurch gekennzeichnet, daß der Niederdruckkreislauf (17) über einen Ringanschluß (36) an den Druckventilverbund (29) angeschlossen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19644915 | 1996-10-29 | ||
DE19644915A DE19644915A1 (de) | 1996-10-29 | 1996-10-29 | Hochdruckpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0840009A2 EP0840009A2 (de) | 1998-05-06 |
EP0840009A3 EP0840009A3 (de) | 1999-12-01 |
EP0840009B1 true EP0840009B1 (de) | 2003-10-15 |
Family
ID=7810300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97110986A Expired - Lifetime EP0840009B1 (de) | 1996-10-29 | 1997-07-02 | Hochdruckpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US6116870A (de) |
EP (1) | EP0840009B1 (de) |
JP (1) | JPH10141177A (de) |
KR (1) | KR100514275B1 (de) |
DE (2) | DE19644915A1 (de) |
Cited By (2)
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---|---|---|---|---|
DE102010041031A1 (de) | 2010-09-20 | 2012-03-22 | Robert Bosch Gmbh | Gesteuertes Saugventil |
WO2021150342A1 (en) | 2020-01-23 | 2021-07-29 | Texas Institute Of Science, Inc. | Submersible pump assembly and method for use of same |
Families Citing this family (56)
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DE19644915A1 (de) * | 1996-10-29 | 1998-04-30 | Bosch Gmbh Robert | Hochdruckpumpe |
IT1306317B1 (it) | 1998-07-16 | 2001-06-04 | Magneti Marelli Spa | Dispositivo di pompaggio ad alta pressione |
DE19834121A1 (de) * | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage einer Brennkraftmaschine |
DE19860672A1 (de) * | 1998-12-29 | 2000-07-13 | Bosch Gmbh Robert | Kolbenpumpe zur Kraftstoffhochdruckerzeugung |
DE69938615T2 (de) * | 1999-02-09 | 2009-06-10 | Hitachi, Ltd. | Hochdruckbrennstoffpumpe für eine Brennkraftmaschine |
FR2793283B1 (fr) * | 1999-05-07 | 2001-07-20 | Leduc Rene Hydro Sa | Procede permettant de fournir un debit variable de liquide a tres haute pression et pompe pour la mise en oeuvre de ce procede |
DE10139055A1 (de) * | 2001-08-08 | 2003-02-27 | Bosch Gmbh Robert | Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine |
EP1296061A3 (de) * | 2001-09-21 | 2005-03-16 | Hitachi, Ltd. | Hochdruckkraftstoffpumpe |
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ITBO20020498A1 (it) * | 2002-07-30 | 2004-01-30 | Magneti Marelli Powertrain Spa | Impianto di iniezione di carburante di tipo common rail con pompa a portata variabile |
DE10249688A1 (de) * | 2002-10-25 | 2004-05-06 | Robert Bosch Gmbh | Kraftstoff-Hochdruckpumpe für eine Kraftstoffeinspritzanlage, insbesondere eine Common-Rail-Kraftstoffeinspritzanlage, von Brennkraftmaschinen |
ITBO20040322A1 (it) * | 2004-05-20 | 2004-08-20 | Magneti Marelli Powertrain Spa | Metodo ed impianto per l'iniezione diretta di carburante in un motore a combustione interna |
ITBO20040485A1 (it) | 2004-07-30 | 2004-10-30 | Magneti Marelli Holding S P A | Pompa carburante ad attuazione idraulica per un motore a combustione interna |
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JP4215000B2 (ja) * | 2005-01-19 | 2009-01-28 | 株式会社デンソー | 高圧ポンプ |
JP4415884B2 (ja) | 2005-03-11 | 2010-02-17 | 株式会社日立製作所 | 電磁駆動機構,電磁弁機構及び電磁駆動機構によって操作される吸入弁を備えた高圧燃料供給ポンプ,電磁弁機構を備えた高圧燃料供給ポンプ |
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DE102008036120B4 (de) * | 2008-08-01 | 2010-04-08 | Continental Automotive Gmbh | Verfahren zur Steuerung einer Hochdruck-Kraftstoffpumpe |
JP4655122B2 (ja) * | 2008-08-07 | 2011-03-23 | 株式会社デンソー | 高圧ポンプの燃料導入方法 |
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EP2211058A1 (de) * | 2009-01-27 | 2010-07-28 | Sauer-Danfoss ApS | Hydraulikpumpe |
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WO2018085517A2 (en) * | 2016-11-02 | 2018-05-11 | Eaton Corporation | Cam-camless cylinder head and systems |
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---|---|---|---|---|
JPS506043B1 (de) * | 1969-05-19 | 1975-03-10 | ||
DE3140933A1 (de) * | 1981-10-15 | 1983-05-05 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffzumesseinrichtung fuer kraftstoffeinspritzpumpen |
GB8703419D0 (en) * | 1987-02-13 | 1987-03-18 | Lucas Ind Plc | Fuel injection pump |
US5058553A (en) | 1988-11-24 | 1991-10-22 | Nippondenso Co., Ltd. | Variable-discharge high pressure pump |
US5230613A (en) * | 1990-07-16 | 1993-07-27 | Diesel Technology Company | Common rail fuel injection system |
DE4206883A1 (de) * | 1992-03-05 | 1993-09-09 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen |
US5577892A (en) * | 1993-11-26 | 1996-11-26 | Mercedes Benz Ag | Method of injecting fuel including delayed magnetic spill valve actuation |
US5538403A (en) * | 1994-05-06 | 1996-07-23 | Cummins Engine Company, Inc. | High pressure pump for fuel injection systems |
JPH08303325A (ja) * | 1995-05-01 | 1996-11-19 | Aisan Ind Co Ltd | 高圧燃料ポンプ用流量制御弁の制御方法 |
DE19644915A1 (de) * | 1996-10-29 | 1998-04-30 | Bosch Gmbh Robert | Hochdruckpumpe |
-
1996
- 1996-10-29 DE DE19644915A patent/DE19644915A1/de not_active Withdrawn
-
1997
- 1997-07-02 DE DE59710857T patent/DE59710857D1/de not_active Expired - Lifetime
- 1997-07-02 EP EP97110986A patent/EP0840009B1/de not_active Expired - Lifetime
- 1997-08-29 KR KR1019970042568A patent/KR100514275B1/ko active IP Right Grant
- 1997-10-28 JP JP9295381A patent/JPH10141177A/ja active Pending
- 1997-10-29 US US08/960,575 patent/US6116870A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010041031A1 (de) | 2010-09-20 | 2012-03-22 | Robert Bosch Gmbh | Gesteuertes Saugventil |
WO2012038196A1 (de) | 2010-09-20 | 2012-03-29 | Robert Bosch Gmbh | Gesteuertes saugventil |
WO2021150342A1 (en) | 2020-01-23 | 2021-07-29 | Texas Institute Of Science, Inc. | Submersible pump assembly and method for use of same |
EP4093971A4 (de) * | 2020-01-23 | 2024-03-20 | Hess Corporation | Tauchpumpenanordnung und verfahren zur verwendung derselben |
Also Published As
Publication number | Publication date |
---|---|
DE19644915A1 (de) | 1998-04-30 |
DE59710857D1 (de) | 2003-11-20 |
KR100514275B1 (ko) | 2005-11-25 |
JPH10141177A (ja) | 1998-05-26 |
EP0840009A3 (de) | 1999-12-01 |
US6116870A (en) | 2000-09-12 |
EP0840009A2 (de) | 1998-05-06 |
KR19980032334A (ko) | 1998-07-25 |
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