EP3047136A1 - Fluidfördersystem für ein fluid - Google Patents
Fluidfördersystem für ein fluidInfo
- Publication number
- EP3047136A1 EP3047136A1 EP14761880.5A EP14761880A EP3047136A1 EP 3047136 A1 EP3047136 A1 EP 3047136A1 EP 14761880 A EP14761880 A EP 14761880A EP 3047136 A1 EP3047136 A1 EP 3047136A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- damper
- fluid
- line
- spring chamber
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
-
- 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
- F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/54—Arrangement of fuel pressure regulators
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
-
- 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
- F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
-
- 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
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
-
- 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
- F02M2200/28—Details of throttles in fuel-injection apparatus
-
- 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
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
-
- 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
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
- F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
Definitions
- the invention relates to a Fluidfordersystem for a fluid, comprising a
- High-pressure conveyor system with a high-pressure pump which has a
- the invention relates to a method for operating such a fluid delivery system.
- Such a fluid support system is known from DE 10 201 1 087 957 A1.
- This fluid charging system is designed as a fuel delivery system of a common rail injection system for an internal combustion engine.
- Fuel supply system has a low pressure conveyor system with a
- Low pressure pump and a high pressure pumping system with a high pressure pump on are connected to each other via a connecting line. Furthermore, the high-pressure delivery system to a pressure damper, which is connected to a spur line. This stub is with the
- the invention has for its object to provide a Fluidfordersystem with which a pulsation of the fluid is damped.
- Low pressure conveyor system arranged and is a hydraulic pressure damper.
- the corresponding method for operating such a fluid delivery system provides that quantity waves and / or pressure waves of the fluid occurring in the low-pressure delivery system are compensated by a pressure damper designed as a hydraulic pressure damper.
- This refinement or this method is based on the recognition that high pulsations of the fluid occur in particular in the low-pressure delivery system and place heavy demands on components arranged in the low-pressure delivery system.
- the pulsations can stimulate lines in the region of the low pressure conveyor system to vibrate and thereby
- Piston pump formed high-pressure pump generated pulsations which are called quantity waves or pressure waves in particular in the
- Embodiment of the fluid delivery system can also be arranged a plurality of hydraulic pressure damper both in the supply line and in the return line.
- the hydraulic pressure damper has a piston arranged in a cylinder and acted upon by a compression spring.
- This embodiment is structurally simple to implement. It can the piston and the cylinder are made of a metallic or non-metallic material, for example plastic, while the compression spring is preferably made of spring steel. In a further embodiment of the invention, the compression spring in one
- This damper chamber is connected in a further embodiment of the invention via a damper supply line to the connecting line, which may be the supply line or the return line.
- This connection to the connecting line can be anywhere on the
- this connection also includes the junction of the connecting line in the high-pressure pump.
- the connection and thus the hydraulic pressure damper can be integrated directly into the high-pressure pump.
- the pressure spring chamber via a pressure spring chamber line directly or indirectly with the connecting line
- a check valve closing the spring chamber or a throttle is used in a further development of the invention in the compression spring chamber line.
- volume wave or the pressure wave in the damper chamber and thus also in the connecting line and the components installed in the connecting line takes place. Subsequent to the pressure wave or pressure wave, the compression spring and the (fluid) prevailing in the pressure spring chamber moves
- the compression spring is designed so that this
- Quantity wave of the fluid reaches the damper chamber and pushes the piston again in the direction of the pressure spring chamber.
- Pressure spring chamber creates steam in the compression spring chamber, which causes the desired damping behavior at the next volume wave.
- a leakage flowing past the piston in the pressure spring chamber is small in relation to the volume in the compression spring chamber and therefore not relevant for vapor formation.
- the connecting line between the damper supply line and the pressure spring chamber line has a throttle. This throttle is optional and ensures that the aforementioned pressure difference ⁇ sets.
- the fluid delivery system is a
- Fuel delivery system and the fluid fuel are, for example, a common rail injection system in which of the low pressure conveyor system
- High-pressure delivery system supplied fuel is conveyed by the high-pressure pump in a high-pressure accumulator. Remove fuel from this high-pressure accumulator! Fuel injectors stored there for taxed injection into the associated combustion chambers of an internal combustion engine, where the
- Fuel supply system is installed.
- Figure 1 is a system diagram of a fuel delivery system with two optional installation options of a hydraulic
- Figure 2 shows a first variant of an embodiment of a hydraulic
- Figure 3 shows a second variant of an embodiment of a hydraulic
- FIG. 1 shows a fluid delivery system designed as a fuel delivery system for a common rail injection system.
- the fuel delivery system has a
- Low-pressure pump 2 with a pre-filter 3 and a check valve 5, a filter 4 and a connecting the above-mentioned components connecting line in the form of a feed line 6 has. Furthermore belongs to the low pressure conveyor system a connecting line in the form of a
- Return line 7 which opens into the tank 1 and which is also connected to fuel injectors, not shown, to dissipate leakage fuel. Furthermore, the return line 7 with the high pressure conveyor system,
- the high pressure pump 8 has a schematically illustrated pump housing 9, in which a camshaft space 10 is formed.
- the camshaft space 10 is connected to the supply line 6 and has a bearing 1 1 a, 1 1 b mounted camshaft 12, for example, as
- Double camshaft is formed. With the camshaft 12, at least one high-pressure pump element cooperates, which essentially consists of a
- Pump working chamber 14 introduced fuel via a high pressure line 15 into a high-pressure accumulator 16, from which there under high pressure
- the fuel fed into the camshaft space 10 is from a
- Fuel quantity is passed.
- a hydraulic pressure damper 19 is installed in the supply line 6 and / or the return line 7, a hydraulic pressure damper 19 is installed.
- the pressure damper 19 can be installed directly in the supply line 6 or the return line 7, or in the Pump housing 9 of the high-pressure pump 8 in the region of the connection of the feed line 6 or the return line 7 may be integrated. It is expressly possible within the scope of the invention to incorporate both in the supply line 6 and in the return line 7 in each case a separate hydraulic pressure damper, or either a hydraulic pressure damper 19 in the
- FIG. 2 shows a first embodiment of such a hydraulic pressure damper 19, which is connected here to a connecting line in the form of the feed line 6 or the return line 7.
- the hydraulic pressure damper 19 is connected here to a connecting line in the form of the feed line 6 or the return line 7.
- a damping housing in the form of a cylinder 20, in which a piston 21 is inserted.
- the piston is acted upon by a pressure spring 23 arranged in a compression spring 23 and in the direction of a
- Damper chamber 24 pressed, which is the pressure spring chamber 22 separated by the piston 21 opposite.
- the damper chamber 24 is connected via a damper supply line 25 to the connecting line in the form of the feed line 6 or the return line 7 at a branch 26.
- the compression spring chamber 22 is opposite to the piston 21 bounded by a spring holder 27, on which the compression spring 23 is supported and in the one
- Pressure spring chamber line 28 is inserted.
- the pressure spring chamber line 28 is composed of different line sections and opens
- Pressure spring chamber 22 fluid is on the continuing
- Pressure spring chamber line 28 discharged into the connecting line.
- Connecting line is between the branch 26 and the junction of the
- the pressure P1 is above the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013218873.0A DE102013218873A1 (de) | 2013-09-19 | 2013-09-19 | Fluidfördersystem für ein Fluid |
| PCT/EP2014/069385 WO2015039948A1 (de) | 2013-09-19 | 2014-09-11 | Fluidfördersystem für ein fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3047136A1 true EP3047136A1 (de) | 2016-07-27 |
| EP3047136B1 EP3047136B1 (de) | 2018-11-14 |
Family
ID=51518786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14761880.5A Active EP3047136B1 (de) | 2013-09-19 | 2014-09-11 | Fluidfördersystem für ein fluid |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10145345B2 (de) |
| EP (1) | EP3047136B1 (de) |
| CN (1) | CN105556111B (de) |
| DE (1) | DE102013218873A1 (de) |
| WO (1) | WO2015039948A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2600765B (en) * | 2020-11-10 | 2023-04-05 | Delphi Tech Ip Ltd | Fuel pump assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900564C2 (de) * | 1999-01-09 | 2003-09-18 | Bosch Gmbh Robert | Common-Rail-System |
| GB2366336A (en) * | 2000-08-31 | 2002-03-06 | Delphi Tech Inc | Fuel pump |
| DE10247210A1 (de) * | 2002-10-10 | 2004-04-22 | Robert Bosch Gmbh | Filteranordnung für Kraftstoffeinspritzsysteme |
| JP4165572B2 (ja) * | 2006-04-12 | 2008-10-15 | トヨタ自動車株式会社 | 内燃機関の燃料供給装置 |
| DE102007038426A1 (de) | 2007-08-14 | 2009-02-19 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem |
| JP4803269B2 (ja) * | 2009-02-24 | 2011-10-26 | 株式会社デンソー | 脈動低減装置 |
| DE102010031356A1 (de) * | 2010-07-15 | 2012-01-19 | Robert Bosch Gmbh | Hochdruck-Einspritzsystem für Kraftstoff-Verbrennungsmaschinen |
| DE102011087957A1 (de) | 2011-12-08 | 2013-06-13 | Robert Bosch Gmbh | Verfahren zum Lokalisieren eines Fehlverhaltens eines Fördersystem einer Brennkraftmaschine und Fördersystem einer Brennkraftmaschine |
| DE102012224004A1 (de) | 2012-12-20 | 2014-06-26 | Robert Bosch Gmbh | Hochdruckeinspritzsystem |
-
2013
- 2013-09-19 DE DE102013218873.0A patent/DE102013218873A1/de not_active Withdrawn
-
2014
- 2014-09-11 EP EP14761880.5A patent/EP3047136B1/de active Active
- 2014-09-11 US US15/023,329 patent/US10145345B2/en active Active
- 2014-09-11 WO PCT/EP2014/069385 patent/WO2015039948A1/de not_active Ceased
- 2014-09-11 CN CN201480051302.XA patent/CN105556111B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US10145345B2 (en) | 2018-12-04 |
| CN105556111B (zh) | 2018-11-13 |
| DE102013218873A1 (de) | 2015-03-19 |
| US20160230726A1 (en) | 2016-08-11 |
| CN105556111A (zh) | 2016-05-04 |
| WO2015039948A1 (de) | 2015-03-26 |
| EP3047136B1 (de) | 2018-11-14 |
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