EP3027882A1 - Brennstoffverteiler und brennstoffeinspritzsystem - Google Patents
Brennstoffverteiler und brennstoffeinspritzsystemInfo
- Publication number
- EP3027882A1 EP3027882A1 EP14734757.9A EP14734757A EP3027882A1 EP 3027882 A1 EP3027882 A1 EP 3027882A1 EP 14734757 A EP14734757 A EP 14734757A EP 3027882 A1 EP3027882 A1 EP 3027882A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- sensor
- fuel injection
- distributor
- fuel distributor
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 125
- 238000002347 injection Methods 0.000 title claims abstract description 47
- 239000007924 injection Substances 0.000 title claims abstract description 47
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003345 natural gas Substances 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 17
- 238000007765 extrusion coating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
-
- 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
- F02M2200/24—Fuel-injection apparatus with sensors
Definitions
- the invention relates to a fuel distributor, which serves to distribute fuel to a plurality of fuel injection valves, and a fuel injection system having such a fuel distributor and a plurality of fuel injection valves.
- the invention relates to the field of fuel injection systems used for injection, in particular for
- Intake manifold injection used by natural gas in internal combustion engines.
- the fuel rail is used to distribute compressed natural gas to the injectors. Further, a sensor is mounted to the fuel rail, which serves for example for measuring the pressure and the temperature of the natural gas in the fuel rail.
- the known from DE 10 2010 064 1 15 A1 injector has the disadvantage that the production of the fuel rail, which is made of aluminum or stainless steel, especially for larger production volume is uneconomical to manufacture. Further, a sensor and a connection element must be mounted on the fuel rail to connect the sensor on the one hand with the fuel rail and on the other hand with a control device. This requires additional work steps in the production. In addition, the sealing point between the sensor and the fuel rail must be reliably formed, over the life of which there is a risk that the sealing point will leak.
- the fuel distributor according to the invention with the features of claim 1 and the fuel injection system according to the invention with the features of claim 1 1 have the advantage that an improved design is possible.
- economical production of the fuel distributor and of the fuel injection system is possible, at the same time enabling simple production or assembly as well as improved sealing in the region of the sensor.
- Claim 1 1 specified fuel injection system possible.
- the fuel injectors are not part of the fuel distributor.
- the fuel distributor can also be independent of the
- Fuel injection valves are manufactured and sold.
- the fuel distributor and the sensor are separate components, which are connected to one another, for example, during a pre-assembly.
- the sensor and the sensor connection can also be realized by separate components.
- the sensor is part of the fuel distributor.
- the sensor connection of the sensor is also part of the fuel distributor. Because the sensor connection of the sensor is integrated in the body of the fuel distributor. Depending on the configuration, the entire sensor may be located in the base body. However, the sensor can also protrude at least partially into the fuel space of the main body. Then at least the sensor connection of the sensor is integrated into the main body.
- the main body has a manifold which is formed of a plastic.
- the fuel cavity is then preferably designed within the distributor tube.
- the fuel can be routed through the manifold and split among the various fuel injectors.
- the fuel can also serve as fuel storage. Specifically, the fuel can be introduced into the fuel as compressed natural gas. While that
- compressed natural gas is then introduced into the fuel space, the
- the fuel distributor thus serves advantageously for distributing natural gas to the fuel injection valves.
- the internal combustion engine can be designed in particular as a diesel or gasoline engine.
- the natural gas is stored here preferably as compressed natural gas in a gas storage, for example at pressures of about 20 MPa (200 bar). Such a compressed natural gas is also called CNG.
- the concept of natural gas is not limited to natural gas but is generally understood.
- the natural gas can also be obtained artificially by coal gasification. Therefore, the term natural gas and natural gas-like fuels to understand.
- the main body can thus be at least partially formed of a plastic.
- the base body and at least partially from a
- Plastic injection be formed.
- the integration of the sensor in the body can be done by the plastic extrusion.
- the sensor can be used as
- Fuel distributor is integrated.
- Fuel space to the fuel valves is feasible to be integrated into the body.
- the outputs may be formed by cups, on which the
- Fuel injection valves are fastened, the cups are integrated into the body. During assembly, inlet ports of the fuel injectors can then be inserted into the cups. The attachment of the fuel injection valves can
- fasteners designed as brackets.
- Such fasteners are preferably attached to the cups, wherein the
- the fuel injection system can be made of a small number of components and assembled in a simple manner.
- the cups may be advantageously formed from a plastic.
- the cups can also be integrated in an advantageous manner in the body.
- the base body can be advantageously stabilized by a plurality of stiffening ribs.
- the sensor can be configured advantageously both as a pressure sensor and as a temperature sensor. In a modified embodiment, however, it is also conceivable that a further sensor is provided with a sensor connection, wherein at least the sensor connection of the further sensor is integrated into the base body. Also conceivable are more than two sensors, if this makes sense in the respective application.
- Fig. 1 is a fuel injection system with a fuel distributor in a three-dimensional representation according to an embodiment of the invention.
- Fig. 1 shows a fuel injection system 1 with a fuel distributor 2 and a plurality of fuel injection valves 3, 4 in a three-dimensional representation corresponding to one
- the fuel distributor 2 is particularly suitable for distributing natural gas, in particular CNG, to the fuel injection valves 3, 4.
- the fuel distributor 2 can also be used to distribute other fuels.
- the fuel injection system 1 is particularly suitable for the fuel injection system 1
- the fuel distributor 2 has a main body 5 with a distributor pipe 6. Furthermore, a sensor 7 with a sensor connection 8 is provided. At least the sensor connection 8 of the sensor 7 is integrated in the main body 5. As a result, the sensor connection 8 is connected to the distributor tube 6. In this case, the sensor connection 8 is preferably configured in one piece with the distributor tube 6.
- the main body can be formed for this purpose in particular from a plastic. In the embodiment of the main body 5, however, different plastics can be used.
- Manifold 6 and the sensor port 8 may at least partially from a
- the sensor connection 8 can be integrated into the main body 5 by the plastic extrusion coating.
- an interior 9 is formed in the manifold 6, an interior 9 is formed.
- the interior 9 serves as
- a fuel line can be connected to compressed natural gas or other fuels in the
- the fuel distributor 2 also has outputs 1 1, 12. In this case
- the outputs 1 1, 12 are formed by cups 1 1, 12, to which the fuel injection valves 3, 4 are attached. To attach the fuel injection valves 3, 4 to the fuel distributor 2 inlet port 13, 14 of the
- Fuel injection valves 3, 4 at least partially inserted into the cups 1 1, 12. By means of fasteners 15, 16 designed as brackets 15, 16, the respective fuel injection valve 3, 4 is then connected to the cup 11, 12 at its inlet connection 13, 14. Thus, the fuel injection valves 3, 4 are then fixed to the cups 1 1, 12 of the fuel distributor 2.
- the cups 1 1, 12 are formed of a plastic. Here, the cups 1 1, 12 are integrated into the main body 5. Specifically, the cups 1 1, 12 together with the
- Manifold 6 may be formed of a molded plastic.
- the outputs 1 1, 12 can be integrated into the main body 5 in an advantageous manner.
- the outputs 1 1, 12 can also be designed modified.
- fuel in particular natural gas
- Fuel injection valves 3, 4 are performed.
- the sensor 7 is preferably designed as a pressure and temperature sensor 7.
- a signal and / or power line can be connected to the sensor connection 8 in order to transmit at least one measurement signal and if necessary to supply the sensor 7 with energy.
- the manifold 6 extends along a longitudinal axis 20.
- the main body 5 in this embodiment on the manifold 6 a plurality of stiffening ribs 21, 22, 23.
- stiffening ribs 21 to 23 are marked here. A part of
- Stiffening ribs 21, 22 in this case extends in a circumferential direction with respect to the longitudinal axis 20. Another part of the reinforcing ribs 23 extends parallel to the longitudinal axis 20.
- the fuel injection system 1 may also have more than two fuel injection valves 3, 4.
- the number of outputs 1 1, 12, in particular cups 1 1, 12, can be adapted to the particular application.
- a fuel injection valve 3 4
- the number of outputs 1 1, 12, in particular cups 1 1, 12, can be adapted to the particular application.
- a suitable embodiment of the fuel distributor 2 and the fuel injection system 1 can be selected.
- the fuel injection system 1 and the fuel distributor 2 have the advantage that a compact design is made possible. Because through the integration of the fuel injection system 1 and the fuel distributor 2 have the advantage that a compact design is made possible. Because through the integration of the fuel injection system 1 and the fuel distributor 2 have the advantage that a compact design is made possible. Because through the integration of the fuel injection system 1 and the fuel distributor 2 have the advantage that a compact design is made possible. Because through the integration of the fuel injection system 1 and the fuel distributor 2 have the advantage that a compact design is made possible. Because through the integration of the
- Sockets saved, with a space-saving design is possible. Accordingly, the space requirement in the area of the outputs 1 1, 12 or the cups 1 1, 12 of the manifold 6 can be reduced. In particular, this mechanical joints between the cups 1 1, 12 and the manifold 6, in particular screw thread omitted. This also approaches or the like can be omitted, which are otherwise required for the mechanical stability of such screw thread or other mechanical connection points.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013214965.4A DE102013214965A1 (de) | 2013-07-31 | 2013-07-31 | Brennstoffverteiler und Brennstoffeinspritzsystem |
PCT/EP2014/062357 WO2015014526A1 (de) | 2013-07-31 | 2014-06-13 | Brennstoffverteiler und brennstoffeinspritzsystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3027882A1 true EP3027882A1 (de) | 2016-06-08 |
EP3027882B1 EP3027882B1 (de) | 2018-01-10 |
Family
ID=51062782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14734757.9A Active EP3027882B1 (de) | 2013-07-31 | 2014-06-13 | Brennstoffverteiler und brennstoffeinspritzsystem |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3027882B1 (de) |
CN (1) | CN105556109B (de) |
BR (1) | BR112016001752A2 (de) |
DE (1) | DE102013214965A1 (de) |
WO (1) | WO2015014526A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108930612A (zh) * | 2017-05-27 | 2018-12-04 | 罗伯特·博世有限公司 | 燃料喷射装置以及燃料加热方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19746563A1 (de) * | 1997-10-22 | 1999-04-29 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
US6247450B1 (en) * | 1999-12-27 | 2001-06-19 | Detroit Diesel Corporation | Electronic controlled diesel fuel injection system |
DE10058130A1 (de) * | 2000-11-22 | 2002-05-23 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem für Brennkraftmaschinen |
JP4134681B2 (ja) * | 2002-10-31 | 2008-08-20 | 日産自動車株式会社 | 内燃機関の高圧燃料配管 |
ITBO20040114A1 (it) * | 2004-02-27 | 2004-05-27 | Magneti Marelli Powertrain Spa | Collettore carburante bi-materiale per un motore a combustione interna con iniezione diretta del carburante e metodo per la sua realizzazione |
JP4695042B2 (ja) * | 2006-08-10 | 2011-06-08 | 株式会社ニッキ | アドオン・ガス燃料噴射システム |
DE102008040901A1 (de) * | 2008-07-31 | 2010-02-04 | Robert Bosch Gmbh | Kraftstoffdruckspeicher für ein Einspritzsystem für Brennkraftmaschinen |
DE102010064115A1 (de) | 2010-12-23 | 2012-06-28 | Robert Bosch Gmbh | Injektoranordnung, die vorzugsweise für Erdgas dient |
DE102012001076A1 (de) * | 2012-01-20 | 2013-07-25 | Veritas Ag | Verfahren zur Erhöhung einer Dauerfestigkeit eines Hohlkörpers und dazugehörigen Hohlkörper |
-
2013
- 2013-07-31 DE DE102013214965.4A patent/DE102013214965A1/de not_active Withdrawn
-
2014
- 2014-06-13 BR BR112016001752A patent/BR112016001752A2/pt not_active IP Right Cessation
- 2014-06-13 CN CN201480043508.8A patent/CN105556109B/zh active Active
- 2014-06-13 EP EP14734757.9A patent/EP3027882B1/de active Active
- 2014-06-13 WO PCT/EP2014/062357 patent/WO2015014526A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2015014526A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105556109A (zh) | 2016-05-04 |
CN105556109B (zh) | 2018-10-02 |
WO2015014526A1 (de) | 2015-02-05 |
EP3027882B1 (de) | 2018-01-10 |
DE102013214965A1 (de) | 2015-02-05 |
BR112016001752A2 (pt) | 2017-08-01 |
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