CN104234892A - Low-pressure loop of fuel feed device of fuel injection system - Google Patents
Low-pressure loop of fuel feed device of fuel injection system Download PDFInfo
- Publication number
- CN104234892A CN104234892A CN201410342339.XA CN201410342339A CN104234892A CN 104234892 A CN104234892 A CN 104234892A CN 201410342339 A CN201410342339 A CN 201410342339A CN 104234892 A CN104234892 A CN 104234892A
- Authority
- CN
- China
- Prior art keywords
- low
- pressure
- restrictor valves
- fuel
- tension loop
- 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
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
-
- 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
- F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A low-pressure loop of a fuel feed device of a fuel injection system of internal combustion engine is provided. The low-pressure loop (10) is provided with a low-pressure pipeline (11) which forms an input part from a supply pump (13) to a high-pressure pump (15), wherein a controllable adjusting element (16) transits a pre-selected supply flow to the high-pressure pump (15), and excess fuel suppled from the supply pump (13) is guided into a backflow pipeline (17) by means of an excess flow valve (30). A T-shaped piece (40) is disposed in the low-pressure pipeline (11), and the excess flow valve (30) is accommodated in the T-shaped piece (40).
Description
Technical field
The present invention relates to subject matter according to claim 1, the low tension loop of the fuel supplying device of the fuel injection system of internal-combustion engine.
Background technique
For the fuel injection system of internal-combustion engine fuel supplying device from the oily rail of high pressure accumulator-also claim-oil groove supply fuel.This high pressure accumulator is connected with hydraulic way with at least one fuel injector, is injected in the firing chamber of internal-combustion engine by this fuel injector fuel.
A kind of such fuel supplying device is such as known from DE 102011077794 A1.Here provide a supply pump, this supply pump picks up fuel and supply suction side by the low-pressure line of high-pressure service pump in a low tension loop from oil groove.At least one on high-tension side outlet of high-pressure service pump to be led in a high tension loop and is led to high pressure accumulator by a high pressure line, and wherein high-pressure service pump is pumped into the fuel with the pressure being such as greater than 1600 bar by safety check.A fuel filter is set between supply pump and high-pressure service pump, for filtering solid fuel particle from fuel.Access a dispensing unit in the suction side of high-pressure service pump, determine by this dispensing unit fuel quantity from supply pump to high-pressure service pump that provide from suiting the requirements and adjust changeably.Be parallel to this dispensing unit in suction side for this reason and access a Restrictor Valves, this Restrictor Valves do not continued by dispensing unit to high-pressure service pump guide fuel quantity by reflux pipeline to oil groove loopback.The bearing of high-pressure service pump is by fuel lubricated, and the fuel quantity needed for lubrication is here imported into reflux pipeline equally.In such fuel supplying device, dispensing unit and Restrictor Valves are equipped with flange or integrated in a shell segments of high-pressure service pump on high-pressure service pump, and high-pressure service pump has complicated structure thus.
In high-pressure service pump, a Restrictor Valves is distributed to low tension loop equally in the fuel supplying device that another knows from DE 102011003876 A1.This Restrictor Valves has the valve shell of a band entrance and an outlet in this case.Described entrance is connected with the low tension loop pipeline of low tension loop, and described outlet is connected with the reflux pipeline to oil groove loopback.Described outlet can be closed by a controll block, and the power that this controll block can resist Compress Spring guides movably in valve shell.The valve shell of Restrictor Valves is placed in a shell segments of high-pressure service pump in this case.
Summary of the invention
The low tension loop with the characteristic measure of claim 1 of the present invention has advantage: can realize fuel quantity from the low-pressure line of fuel supplying device to the control of reflux pipeline with the material of simple constitutional detail and low cost.In addition high-pressure service pump can not wanted Restrictor Valves thus and realize in compact structure mode, and high-pressure service pump also advantageously can put into narrow engine structure space thus.
Favourable expansion of the present invention and improvement may by the measure of dependent claims.
When T-piece has a transportation section be connected with low-pressure line and a son field be connected with reflux pipeline and holds in son field when Restrictor Valves, the particularly advantageous setting of one of Restrictor Valves can be realized.The son field of T-piece has a reception cavity for this reason, puts into Restrictor Valves in it.
Restrictor Valves is suitable by a connecting tubes arranged in son field at reception cavity internal fixtion, wherein connecting tubes is extruded the valve shell of Restrictor Valves at least indirectly.Described connecting tubes is connected with hydraulic way with reflux pipeline.
For arranging Restrictor Valves to hydraulic seal in T-piece, described reception cavity has a first cylinder section and a second cylinder section and Restrictor Valves has the valve shell of a band seal section, and wherein the first cylinder section has the internal diameter less than the second cylinder section.The seal section of valve shell is arranged on to hydraulic seal in the first cylinder section for this reason.
In addition reception cavity has an entrance, and it leads to an entrance constructed in transportation section from the first cylinder section, and after making, an entrance is connected with hydraulic way with the entrance of Restrictor Valves.The inlet pressure existed in low-pressure line is applied to thus on the entrance of Restrictor Valves.
Have structure one control space in the second cylinder section compared with large diameter additionally by arranging Restrictor Valves in reception cavity, it is connected with reflux pipeline with hydraulic way.For deriving controlled quentity controlled variable from low tension loop by the entrance and exit of Restrictor Valves, the outlet of Restrictor Valves passes in described control space.This control space is made up of an annular space aptly, and this annular space is formed in the second cylinder section between the larger internal diameter of the second cylinder section and the exterior contour of the valve shell of Restrictor Valves.
The simple T-piece of a kind of manufacturing process is there is when the T-piece with transportation section and son field manufactures as the matrix of single type.
For outer and arrange Restrictor Valves in loop at high-pressure service pump, T-piece is arranged in low-pressure line between supply pump and fuel filter, or arranges between fuel filter and high-pressure service pump in low-pressure line.
Accompanying drawing explanation
Embodiments of the invention in the accompanying drawings represent and explain in detail in the following description.
In accompanying drawing:
Fig. 1 represents the schematic diagram of first fuel supplying device arranged with Restrictor Valves,
Fig. 2 represents the schematic diagram of second fuel supplying device arranged with Restrictor Valves,
Fig. 3 schematic diagram represents the sectional drawing by a T-piece of the present invention,
Fig. 4 represents the sectional drawing by of the present invention with the T-piece of the Restrictor Valves put into.
Embodiment
The fuel supplying device of the fuel injection system for internal-combustion engine that Fig. 1 and 2 represents has a low tension loop 10 and a high tension loop 20, and the former has low-pressure line 11, and the latter has high pressure line 21.Low-pressure line 11 leads to high-pressure service pump 15 from oil groove 19 by supply pump 14, fuel filter 13.High pressure line 21 leads to the fuel storage device 22 also referred to as oily rail from high-pressure service pump 15.Fuel storage device 22 is connected with pressure regulator valve 23 if desired, and this pressure regulator valve 23 is the jet pressure of the pressure adjusting in fuel storage device 22 to needs.Fuel storage device 22 such as connects multiple fuel injector 24.Under high pressure be injected in a firing chamber do not represented of internal-combustion engine by these fuel injector 24 fuel.Reflux pipeline 17 returns oil groove 19 from pressure regulator valve 23 with from fuel injector 24.
Supply pump 13 is as pre-feed pump work and from oil groove 19, suct fuel and this fuel is supplied the suction side of high-pressure service pump by low-pressure line 11.High-pressure service pump 15 pumps into the fuel with pressure in high tension loop 20 and continues to pump in fuel storage device 22 finally by high pressure line 21.
High-pressure service pump 15 works together with an a controllable regulating element 16 such as dispensing unit.This regulating element 16 is arranged in low tension loop 10 in the suction side of high-pressure service pump 15.By regulating element 16 or the flow cross in regulating between supply pump 13 and high-pressure service pump 15 low-pressure line 11 changeably by dispensing unit, to make the fuel quantity supplied from high-pressure service pump 15 to fuel storage device 22 adapt to the needs of internal-combustion engine thus.
A Restrictor Valves 30 is accessed in the upstream of controllable regulating element 16 in low-pressure line 11.This Restrictor Valves 30 is for the unwanted fuel quantity of the adjustment due to regulating element 16 that controls high-pressure service pump 15 and by reflux pipeline 17 to oil groove 19 loopback.
Restrictor Valves 30 is arranged in a T-piece 40.This T-piece 40 connects the low-pressure line 11 of the interface 11.1 with supply pump side and the interface 11.2 with high pressure pump side.This external T-piece 40 connects the control pipeline 18 that leads to reflux pipeline 17.Therefore use Restrictor Valves 30 can continue to guide a controlled quentity controlled variable to oil groove 19 by controlling pipeline 18 to reflux pipeline 17 from low-pressure line 11, wherein controlled fuel quantity depends on the cracking pressure of Restrictor Valves 30.
The T-piece 40 in first mode of execution of Fig. 1 with Restrictor Valves 30 is arranged in low-pressure line 11 between supply pump 13 and fuel filter 14.
In second mode of execution of Fig. 2, T-piece 40 is arranged in low-pressure line 11 between fuel filter 14 and high-pressure service pump 15.
According to Fig. 3 T-piece 40, there is a transportation section 41 and a son field 42.Transportation section 41 is configured for a delivery pipe of low-pressure line 11 thus connects between supply pump 13 and high-pressure service pump 15 with hydraulic way.
The T-piece 40 with transportation section 41 and son field 42 realizes being favourable as the matrix of a single type.The matrix of this single type figuration manufacture aptly in this case.Interface only for the Restrictor Valves 30 put into carries out accurate aft-loaded airfoil.
Son field 42 has the reception cavity 45 of a band attachment hole 46.Be connected with hydraulic way with low-pressure line 11 with delivery pipe 43 by entrance 44 this reception cavity 45.At the connecting tubes 47 of attachment hole 46 internal fixtion one for connection control pipeline 18.Here this connecting tubes 47 is pressed into, is screwed into or glues in attachment hole 46.Restrictor Valves 30 is put in reception cavity 45.
Transportation section 41 constructs another flange connector 41.1 and 41.2 respectively in inflow side and outflow side, is connected with the interface 11.1 and 11.2 of low-pressure line 11 for hydraulic seal.These two flange connectors 41.1 are shaping together with 41.2 on the matrix of the single type of T-piece 40.
Fig. 4 represents the T-piece 40 with the Restrictor Valves 30 put into according to Fig. 3 in detail.
Restrictor Valves 30 has a valve shell 31, and it has an entrance 32 and an outlet 33.On valve shell 31, structure one has the columnar seal section 36 of the anchor ring 38 of side in addition.The power of renitency spring 35 the valve closing element 34 that a form is valve piston can be imported movably in valve shell 31.Be opened by the axial motion outlet 33 of valve piston 34 or close.
In son field 42, the reception cavity 45 of structure realizes as the hollow cylinder with at least one the first cylinder section 51 and a second cylinder section 52 one at least two-stage, and wherein the first cylinder section 51 has the internal diameter less than the second cylinder section 52.First cylinder section 51 constructs an annular convex shoulder 53 around entrance 44.
Valve shell 31 puts into the first cylinder section 51 with seal section 36 by seal ring 37.Seal section 36 supports on the annular convex shoulder 53 of the first cylinder section 51 with anchor ring 38 in this case, and the entrance 32 of Restrictor Valves 30 leads in the entrance 44 of son field 42 thus.For position stability with hydraulic seal at the son field 42 internal fixtion Restrictor Valves 30 of T-piece 40, valve shell 31 keeps in reception cavity 45 by a pressure containing part 39.The connecting tubes 47 for this reason put in tap hole 46 is pressed on pressure containing part 39.
Between the inwall and the outer wall of valve shell 31 of the second cylinder section 52, construct the annular space 48 that is used as to control space, in it, pass into the outlet 33 of Restrictor Valves 30.Connection that annular space 48 is such as existed by one in pressure containing part 39, that do not represent in detail is connected with hydraulic way with the pipeline existed in connecting tubes 47, makes it possible to from controlling space 48 by connecting tubes 47 to pipage control amount in control pipeline 18.
By the connection of the entrance of Restrictor Valves 30 32 with the hydraulic pressure of the entrance 44 of son field 42, set up the connection of the hydraulic pressure of the compression face exposed to an entrance 32 to Restrictor Valves 30 of valve closing element 34 by entrance 44 from low-pressure line 11.Therefore the inlet pressure for high-pressure service pump 15 existed in low-pressure line 11 is also applied to the compression face of valve closing element 34.If the closing forces of the power Overpressure of a safety valve spring 35 acted on valve closing element 34 by this inlet pressure and the closing forces of support acted on valve closing element 34 by the pressure in reflux pipeline 17, then valve closing element 34 moves axially and this valve closing element 34 discharges outlet 33 towards control space 48.When do not represent, outlet 33 be opened at that time controlled quentity controlled variable to be imported in reflux pipeline 17 by controlling space 48 and controlling pipeline 18 and to be finally sent back in oil groove 19.
But except illustrate in the diagram have valve closing element 34, form be guiding valve Restrictor Valves 30 except the valve of other kinds be also fine, such as there is or do not have the ball check valve of by-pass throttle respectively.
Claims (11)
1. the low tension loop with low-pressure line (11) of the fuel supplying device of fuel injection system, described low-pressure line (11) forms an input part from supply pump (13) to high-pressure service pump (15), one of them controllable regulating element (16) transmits the supply flow selected in advance to high-pressure service pump (15), and be imported in reflux pipeline (17) from the excessive fuel that supply pump (13) supplies by a Restrictor Valves (30), it is characterized in that, a T-piece (40) is set in low-pressure line (11), Restrictor Valves (30) is contained in this T-piece.
2. low tension loop according to claim 1, it is characterized in that, described T-piece (40) has a transportation section (41) be connected with low-pressure line (11) and a son field (42) be connected with reflux pipeline (17), and Restrictor Valves (30) is contained in son field (42).
3. low tension loop according to claim 2, is characterized in that, described son field (42) has a reception cavity (45), puts into Restrictor Valves (30) in it.
4. low tension loop according to claim 3, is characterized in that, described Restrictor Valves (30) is fixed by the connecting tubes (47) arranged in a tap hole in reception cavity (45) (46).
5. low tension loop according to claim 3, it is characterized in that, reception cavity (45) has a first cylinder section (51) and a second cylinder section (52), and wherein the first cylinder section (51) has the internal diameter less than the second cylinder section (52); Restrictor Valves (30) has the valve shell (31) of a band seal section (36); And be arranged on to seal section (36) hydraulic seal in the first cylinder section (51).
6. low tension loop according to claim 5, it is characterized in that, reception cavity (45) has an entrance (32), it leads to the entrance (44) of a structure in transportation section (41) from the first cylinder section (51), and entrance (44) is connected with hydraulic way with the entrance (32) of Restrictor Valves (30).
7. low tension loop according to claim 5, it is characterized in that, space (48) is controlled at the upper structure one of the second cylinder section (52), it is connected with reflux pipeline (17) with hydraulic way, and the outlet (33) of Restrictor Valves (30) passes in control space (48).
8. low tension loop according to claim 7, it is characterized in that, described control space (48) is made up of an annular space, and this annular space is formed between the internal diameter of the second cylinder section (56) and the exterior contour of the valve shell (31) of Restrictor Valves (30).
9. low tension loop according to claim 2, is characterized in that, the T-piece (40) with transportation section (41) and son field (42) realizes as the matrix of single type.
10. low tension loop according to claim 1, is characterized in that, T-piece (40) is arranged in low-pressure line (11) between supply pump (13) and fuel filter (14).
11. low tension loops according to claim 1, is characterized in that, T-piece (40) is arranged in low-pressure line (11) between fuel filter (14) and high-pressure service pump (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013211147.9 | 2013-06-14 | ||
| DE102013211147.9A DE102013211147B4 (en) | 2013-06-14 | 2013-06-14 | Low pressure circuit of a fuel delivery device of a fuel injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234892A true CN104234892A (en) | 2014-12-24 |
| CN104234892B CN104234892B (en) | 2019-11-26 |
Family
ID=52009737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410342339.XA Active CN104234892B (en) | 2013-06-14 | 2014-06-11 | The low tension loop of the fuel supply system of fuel injection system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104234892B (en) |
| DE (1) | DE102013211147B4 (en) |
| IN (1) | IN2014DE01146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673283A (en) * | 2016-01-28 | 2016-06-15 | 山东康达精密机械制造有限公司 | Low-pressure oil cavity pressurizing device for inline distribution type electronic control injection pump |
| CN109386415A (en) * | 2017-06-16 | 2019-02-26 | 罗伯特·博世有限公司 | Fuel injection system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700052993A1 (en) * | 2017-05-16 | 2018-11-16 | Bosch Gmbh Robert | PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10026373A1 (en) * | 2000-05-27 | 2001-11-29 | Volkswagen Ag | High pressure fuel injection system for diesel motors forms a fuel reserve at the flow vessel in the supply circuit to be extracted by the high pressure pump for a constant fuel injection pressure at all motor speeds |
| JP2002061529A (en) * | 2000-08-18 | 2002-02-28 | Hitachi Ltd | Fuel supply system of internal combustion engine |
| US20020088434A1 (en) * | 2001-01-08 | 2002-07-11 | Scott Goodenough | Fuel injection pump for an internal combustion engine |
| CN1823222A (en) * | 2003-07-17 | 2006-08-23 | 罗伯特·博世有限公司 | Fuel injection system for combustion engines |
| CN102472217A (en) * | 2009-07-27 | 2012-05-23 | 罗伯特·博世有限公司 | High pressure injection system having fuel cooling from low pressure region |
| CN202327272U (en) * | 2011-10-24 | 2012-07-11 | 上海磊诺工业气体有限公司 | Rising stem type low-leakage high-sealing valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132685A (en) | 1962-04-02 | 1964-05-12 | Malcom N Mckinnon | Auxiliary fuel system for vehicles |
| US5975061A (en) | 1998-02-17 | 1999-11-02 | Walbro Corporation | Bypass fuel pressure regulator |
| DE102011003876A1 (en) | 2011-02-09 | 2012-08-09 | Robert Bosch Gmbh | Overflow valve for fuel injection system e.g. common-rail system, has output portion that is closed by valve piston, which is guided against force of spring in valve housing |
| ITMI20110582A1 (en) | 2011-04-08 | 2012-10-09 | Bosch Gmbh Robert | PUMPING GROUP FOR FOOD FUEL, PREFERIBLY GASOIL, FROM A CONTAINMENT TANK TO AN INTERNAL COMBUSTION ENGINE |
| DE102011077794A1 (en) | 2011-06-20 | 2012-12-20 | Robert Bosch Gmbh | Pressure relief valve for use with injection system of internal combustion engine, is provided with high-pressure pump, which has working chamber, which is connected with metering unit by suction valve |
-
2013
- 2013-06-14 DE DE102013211147.9A patent/DE102013211147B4/en active Active
-
2014
- 2014-04-28 IN IN1146DE2014 patent/IN2014DE01146A/en unknown
- 2014-06-11 CN CN201410342339.XA patent/CN104234892B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10026373A1 (en) * | 2000-05-27 | 2001-11-29 | Volkswagen Ag | High pressure fuel injection system for diesel motors forms a fuel reserve at the flow vessel in the supply circuit to be extracted by the high pressure pump for a constant fuel injection pressure at all motor speeds |
| JP2002061529A (en) * | 2000-08-18 | 2002-02-28 | Hitachi Ltd | Fuel supply system of internal combustion engine |
| US20020088434A1 (en) * | 2001-01-08 | 2002-07-11 | Scott Goodenough | Fuel injection pump for an internal combustion engine |
| US6598579B2 (en) * | 2001-01-08 | 2003-07-29 | Diesel Technology Company | Fuel injection pump for an internal combustion engine |
| EP1350024A1 (en) * | 2001-01-08 | 2003-10-08 | Diesel Technology Company | Fuel injection pump for an internal combustion engine |
| CN1823222A (en) * | 2003-07-17 | 2006-08-23 | 罗伯特·博世有限公司 | Fuel injection system for combustion engines |
| CN102472217A (en) * | 2009-07-27 | 2012-05-23 | 罗伯特·博世有限公司 | High pressure injection system having fuel cooling from low pressure region |
| CN202327272U (en) * | 2011-10-24 | 2012-07-11 | 上海磊诺工业气体有限公司 | Rising stem type low-leakage high-sealing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673283A (en) * | 2016-01-28 | 2016-06-15 | 山东康达精密机械制造有限公司 | Low-pressure oil cavity pressurizing device for inline distribution type electronic control injection pump |
| CN109386415A (en) * | 2017-06-16 | 2019-02-26 | 罗伯特·博世有限公司 | Fuel injection system |
| CN109386415B (en) * | 2017-06-16 | 2022-06-03 | 罗伯特·博世有限公司 | Fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DE01146A (en) | 2015-06-05 |
| DE102013211147B4 (en) | 2021-12-30 |
| DE102013211147A1 (en) | 2014-12-18 |
| CN104234892B (en) | 2019-11-26 |
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