CN101427020A - High-pressure fuel delivery device - Google Patents
High-pressure fuel delivery device Download PDFInfo
- Publication number
- CN101427020A CN101427020A CNA2007800143041A CN200780014304A CN101427020A CN 101427020 A CN101427020 A CN 101427020A CN A2007800143041 A CNA2007800143041 A CN A2007800143041A CN 200780014304 A CN200780014304 A CN 200780014304A CN 101427020 A CN101427020 A CN 101427020A
- Authority
- CN
- China
- Prior art keywords
- delivery device
- pressure
- fuel delivery
- pressure fuel
- fuel
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 112
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000002828 fuel tank Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 206010010774 Constipation Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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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
- 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
- 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
-
- 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
- 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
- F02M63/0275—Arrangement of common rails
- F02M63/028—Returnless common rail 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
- 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
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
A high-pressure fuel delivery device (18) for an internal combustion engine comprises a high-pressure pump (36) and a low-pressure flow path (72). Said low-pressure flow path (72) leads from a fuel inlet (28) of the high-pressure fuel delivery device (18) to a holding space (40) for a driveshaft (44) of the high-pressure pump (36) and onward to at least one inlet valve (56) of the high-pressure pump (36). Leakage and/or lubricating fuel is recirculated via a recirculation flow path (62). It is proposed that the recirculation flow path (62) opens out (66) into the low-pressure flow path (72).
Description
Technical field
The present invention relates to high-pressure fuel delivery device according to the preamble of claim 1.
Background technique
By market known be used to be provided with the common rail fuel system of the internal-combustion engine of fuel direct injection device.This fuel system comprises an electronic prime transfer pump, and this prime transfer pump is transported to high-pressure fuel delivery device with fuel from fuel tank.This high-pressure fuel delivery device comprises a piston high-pressure service pump that is mechanically driven by internal-combustion engine again, and this piston high-pressure service pump is transported to common rail with fuel.For the lubricated and cooling of the bearing of high pressure pump drive axle, the enclosure interior that fuel at first enters this high-pressure service pump by the fuel inlet of this high-pressure fuel delivery device especially enters the receiving chamber that is used for live axle.The major part of fuel continues to flow to the inlet valve of this high-pressure service pump therefrom.And the sub-fraction that flows into the fuel of receiving chamber is passed through the bearing and the associated sealing arrangement for bearings outflow of live axle.The fuel of this outflow is commonly referred to return line by a return flow path, flow back into fuel tank.
Summary of the invention
Task of the present invention is, the high-pressure fuel delivery device of the described type of beginning is provided, and it can realize the cheap construction of fuel system.
This task will be by having claim 1 the high-pressure fuel delivery device of feature solve.Provided favourable further configuration in the dependent claims.The further feature of essence of the present invention will disclose in the following description and accompanying drawing.The diverse combination of each feature here can be an essence of the present invention also, and need not to point out clearly these combinations.
By using the return line of the desirable treatment for relieving indigestion and constipation of high-pressure fuel delivery device according to the present invention to fuel tank.The structure of having installed according to the fuel system of high-pressure fuel delivery device of the present invention is simplified, so that no matter made escapable cost when still moving and safeguarding.
It is achieved like this, that is, return flow path does not leave high-pressure fuel delivery device, but is combined in this high-pressure fuel delivery device.For example do not flow back to fuel tank by the bearing of live axle and/or the fuel of shaft sealer outflow, but stay in this high-pressure fuel delivery device, its mode is that the fuel of these outflows is imported into the low pressure flow passage path.The fuel of also having avoided in this way being stored in the fuel tank undesirably is heated.
A favourable configuration according to high-pressure fuel delivery device of the present invention is characterised in that: it comprises the prime transfer pump of a combination.Obtain a compact especially high-pressure fuel delivery device efficiently that reaches thus.
All right in a further configuration to this, the prime transfer pump is arranged in the low pressure flow passage path, and return flow path imports this low pressure flow passage path in the upstream of this prime transfer pump.High-pressure fuel delivery device with such configuration especially simply reaches compactly and constitutes.
Mechanical pressure regulator valve with return flow line can be set in the case, and this return flow line imports the low pressure flow passage path in the upstream of prime transfer pump.Realize in this way to the constant incoming pressure of the inlet valve of high-pressure service pump, but also compact the reaching simply of high-pressure fuel delivery device constituted, because do not need an independent return flow line.
Conversion ground, this high-pressure fuel delivery device can be connected with the prime transfer pump of an outside.This prime transfer pump for example can be arranged in the zone of the fuel tank of fuel system under the high-pressure fuel delivery device.Avoid between high-pressure fuel delivery device and fuel tank, existing the fuel conduit of a relatively low pressure in this way, in this fuel conduit, may form steam bubble.
A particularly advantageous further configuration according to high-pressure fuel delivery device of the present invention is characterised in that: be provided with a suction jet pump (Saugstralpumpe) in the low pressure flow passage path, this suction jet pump is by the fuel driven that flows to inlet valve, and described return flow path imports this suction jet pump.The fuel quantity that for example flows out by bearing is sucked by this suction jet pump in this way.The fuel quantity that is directly flowed to inlet valve by receiving chamber comes for using as the high-pressure delivery amount with the summation of the fuel quantity that flows back to by return flow path.This high-pressure fuel delivery device has good efficient, and the pressure suction by lubricated fuel has improved the lubricated of bearing in addition.At first be, when the prime transfer pump of an outside that can be connected with high-pressure fuel delivery device is set, by this suction jet pump, even when the high-pressure service pump slow-speed of revolution, also guarantee flowing back to of lubricated fuel.
When this prime transfer pump drives by electricity, can regulate prime discharge pressure and the pressure that fuel is delivered to inlet valve through receiving chamber particularly well.In addition, have especially a plurality of degrees of freedom aspect the location of prime transfer pump.
If the prime transfer pump can then can obtain a compact especially high-pressure fuel delivery device indirectly by internal combustion engine drive at least on the contrary.
Downstream at the remittance mouth of return flow path in the low pressure flow passage path can be provided with an adjustable throttling arrangement.Such throttling arrangement that also is called as " batching unit " allows the adjusting of high-pressure service pump quantity delivered to reach the quantity delivered of can regulate high-pressure fuel delivery device thus.By the location that is proposed by the present invention of this throttling arrangement, described quantity delivered is not subjected to the influence of the fuel quantity that flows back to by return flow path.
In return flow path, can be provided with at least one current-limiting apparatus.Can regulate the fuel quantity that flows back to by return flow path targetedly by this current-limiting apparatus, this makes according to the efficient of high-pressure fuel delivery device of the present invention and improves further.
Description of drawings
Hereinafter with reference to accompanying drawing particularly preferred embodiment of the present invention is elaborated.Represent in the accompanying drawing:
Fig. 1: have the schematic representation of fuel system of the high-pressure fuel delivery device of first form of implementation, and
Fig. 2: with the similar diagrammatic sketch of Fig. 1, but the high-pressure fuel delivery device with second form of implementation.
Embodiment
Fuel system always is provided with label 10 in Fig. 1.This fuel system belongs to a unshowned internal-combustion engine, and this internal-combustion engine then drives a unshowned Motor Vehicle.
High-pressure fuel delivery device 18 comprises a fuel inlet 28, connects fuel conduit 14 on this fuel inlet.One passage 30 leads to prime transfer pump 32 by fuel inlet 28, and this prime transfer pump is combined in the high-pressure fuel delivery device 18.One passage 34 leads to a high-pressure service pump 36 by prime transfer pump 32.High-pressure service pump 36 is mechanically driven by internal-combustion engine as prime transfer pump 32, for example by the camshaft actuated of internal-combustion engine.High-pressure service pump 36 comprises a housing 38 that has receiving chamber 40, and this receiving chamber is used for a live axle 44 that is provided with a cam 42.This live axle and two piston 46a and 46b cooperating, these pistons define conveying chamber 48a or 48b.
One passage 50 leads to an adjustable throttling arrangement 52 by a receiving chamber 40, and passage 54a and 54b lead to conveying chamber 48a and 48b by this throttling arrangement through inlet valve 56a and 56b again.Passage 58a and 58b are connected conveying chamber 48a or 48b with expulsion valve 60a and 60b.These expulsion valves constitute the fuel outlet of high-pressure fuel delivery device simultaneously, connect rail 20 on this fuel outlet.
At passage 30,34, receiving chamber 40 has low relatively pressure among passage 50 and passage 54a and the 54b.Therefore this through-flow path is also referred to as " low pressure flow passage path ".It is always represented with label 72.The fuel that flows out by shaft sealer 64a and 64b feeds back to remittance mouth 66 by passage 62a and 62b.Therefore passage 62a and 62b are also referred to as " return flow path ".
At work, prime transfer pump 32 sucks fuel and it is compressed to a low relatively prime discharge pressure, for example 4 clings to from fuel tank 12, and with this pressure fuel is transported in the receiving chamber 44.These fuel are used to cool off and the bearing of lubricated live axle 44 there.Fuel flows to inlet valve 56a from receiving chamber 40 through adjustable throttling arrangement 52, b and flow to conveying chamber 48a again, and among the b, at conveying chamber 48a, fuel is compressed and by expulsion valve 60a, b is transported to rail 20 among the b.Be used for bearing lubricated of live axle 44 and by shaft sealer 64a, the fuel that b flows out is by return flow path 62a, b is transported to the suction side (passage 30) of prime transfer pump 32 and is sucked by this prime transfer pump.
Express the fuel system 10 of the high-pressure fuel delivery device 18 of form of implementation among Fig. 2 with a conversion.Having those parts of equivalent function and zone with parts of formerly describing and zone here, is provided with identical label and no longer at length is described.
In the fuel system 10 of Fig. 2, prime transfer pump 32 is not combined in the high-pressure fuel delivery device 18, but is arranged in the zone of fuel tank 12 as the prime transfer pump 32 of outside.This prime transfer pump is not by internal combustion engine drive in addition, but electricity drives.The pressure regulator valve 70 that has an overflow ducts 68 also is arranged near the zone of the prime transfer pump 32 the fuel tank 12.
Leading to passage 54a by receiving chamber 40 through adjustable throttling arrangement 52, b reaches and further leads to inlet valve 56a, is provided with a suction jet pump 74 in the passage 50 of b.This suction jet pump is flowed to inlet valve 56a by receiving chamber 40 thus, the fuel driven of b, and return flow path 62a, b import this suction jet pump at 66 places.
Claims (11)
1. the high-pressure fuel delivery device (18) that is used for internal-combustion engine, have a high-pressure service pump (36) and a low pressure flow passage path (72), this low pressure flow passage path is led to the receiving chamber (40) of a live axle (44) that is used for this high-pressure service pump (36) and is further led at least one inlet valve (56) of this high-pressure service pump (36) from the fuel inlet (28) of this high-pressure fuel delivery device (18), and has a return flow path (62), feed back leaked fuel and/or lubricated fuel by this return flow path, it is characterized in that: this return flow path (62) imports (66) described low pressure flow passage path (72).
2. according to the high-pressure fuel delivery device (18) of claim 1, it is characterized in that: this high-pressure fuel delivery device comprises the prime transfer pump (32) of a combination.
3. according to the high-pressure fuel delivery device (18) of claim 2, it is characterized in that: this prime transfer pump (32) is arranged in the described low pressure flow passage path (72), and described return flow path (62) imports (66) described low pressure flow passage path (72) in the upstream of this prime transfer pump (32).
4. according to the high-pressure fuel delivery device (18) of claim 2 or 3, it is characterized in that: this high-pressure fuel delivery device comprises that one has the pressure regulator valve (70) of the machinery of overflow ducts (68), and this overflow ducts imports described low pressure flow passage path (72) in the upstream of described prime transfer pump (32).
5. according to the high-pressure fuel delivery device (18) of claim 1, it is characterized in that: this high-pressure fuel delivery device can be connected with the prime transfer pump (32) of an outside.
6. according to the high-pressure fuel delivery device (18) of claim 5, it is characterized in that: described return flow path (62) imports (66) described low pressure flow passage path (72) between described receiving chamber (40) and described inlet valve (56).
7. according to each high-pressure fuel delivery device (18) in the above claim, it is characterized in that: a suction jet pump (74) is set in described low pressure flow passage path (72), this suction jet pump is by the fuel driven that flows to described inlet valve (56), and described return flow path (62) imports (66) this suction jet pump.
8. according to the high-pressure fuel delivery device (18) of one of claim 2 to 7, it is characterized in that: described prime transfer pump (32) is electrically driven (operated).
9. according to the high-pressure fuel delivery device (18) of one of claim 2 to 7, it is characterized in that: described prime transfer pump (32) is at least indirectly by internal combustion engine drive.
10. according to the high-pressure fuel delivery device (18) of one of above claim, it is characterized in that: the downstream at the remittance mouth (66) of described return flow path (62) in described low pressure flow passage path (72) is provided with an adjustable throttling arrangement (52).
11. the high-pressure fuel delivery device (18) according to one of above claim is characterized in that: at least one throttling arrangement (65) is set in described return flow path (62).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006018702.4 | 2006-04-21 | ||
| DE102006018702A DE102006018702A1 (en) | 2006-04-21 | 2006-04-21 | Fuel high-pressure conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101427020A true CN101427020A (en) | 2009-05-06 |
Family
ID=37965025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800143041A Pending CN101427020A (en) | 2006-04-21 | 2007-02-14 | High-pressure fuel delivery device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2013471B1 (en) |
| CN (1) | CN101427020A (en) |
| AT (1) | ATE535707T1 (en) |
| BR (1) | BRPI0706557A2 (en) |
| DE (1) | DE102006018702A1 (en) |
| WO (1) | WO2007122023A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110691904A (en) * | 2017-03-29 | 2020-01-14 | 瓦锡兰芬兰有限公司 | High-pressure fuel pump assembly for internal combustion piston engine |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008017222A1 (en) * | 2008-04-04 | 2009-10-08 | Continental Automotive Gmbh | Pump arrangement for conveying a fluid |
| DE102008001704A1 (en) | 2008-05-09 | 2009-11-12 | Robert Bosch Gmbh | Fuel conveying system for internal-combustion engine, has hydraulic control line in connection with return pipe over working throttle for hydraulically actuating valve piston, and pressure-relief valve switched parallel to working throttle |
| DE102010026159A1 (en) | 2010-07-06 | 2012-01-12 | Audi Ag | Fuel system for an internal combustion engine |
| DE102010042587A1 (en) * | 2010-10-18 | 2012-04-19 | Robert Bosch Gmbh | Fuel pump for a fuel injection system of an internal combustion engine |
| DE102011003089A1 (en) | 2011-01-25 | 2012-07-26 | Robert Bosch Gmbh | Overflow valve of a force injection system |
| DE102011075474A1 (en) | 2011-05-09 | 2012-11-15 | Robert Bosch Gmbh | High pressure pump for fuel injection system, has pump housing, in which pump element is received, where pump element is arranged radially around drive shaft |
| DE102011089623A1 (en) | 2011-12-22 | 2013-06-27 | Robert Bosch Gmbh | Fuel conveying device for use in common-rail injection system for combustion engine, has return-flow pipe for returning lubricant-, coolant- and/or leakage amount into container or inlet line, and valves arranged in inlet line and/or pipe |
| DE102012203724A1 (en) | 2012-03-09 | 2013-09-12 | Robert Bosch Gmbh | Fuel conveying device for common-rail injection system in combustion engine, has flow path arranged in valve for hydraulic connection of shaft bearing of high pressure pump with return-flow pipe, where throttle is integrated into flow path |
| DE102012210177A1 (en) | 2012-06-18 | 2013-12-19 | Robert Bosch Gmbh | Fuel feed device for, e.g. common-rail fuel injection system, has a pre-feed pump functioning as a regulated electrical fuel pump, and a machine room connected to return line through shaft bearings connected in parallel to a throttle |
| DE102012212062A1 (en) | 2012-07-11 | 2014-01-16 | Robert Bosch Gmbh | Low pressure circuit for a fuel injection system, fuel injection system and method of operating a fuel injection system |
| DE102015217863A1 (en) * | 2015-09-17 | 2017-03-23 | Continental Automotive Gmbh | Fuel injection system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19714488C1 (en) | 1997-04-08 | 1998-09-03 | Siemens Ag | Fuel injection system for IC engine, particularly diesel engine |
| DE19941689A1 (en) * | 1999-09-01 | 2001-03-15 | Siemens Ag | Fuel injection device for an automobile engine |
| DE10057244A1 (en) | 2000-11-18 | 2002-06-06 | Bosch Gmbh Robert | Fuel injection system for internal combustion engines with improved starting behavior |
| DE10205187A1 (en) * | 2002-02-08 | 2003-08-21 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
| JP3915718B2 (en) * | 2003-03-11 | 2007-05-16 | 株式会社デンソー | Fuel supply pump |
-
2006
- 2006-04-21 DE DE102006018702A patent/DE102006018702A1/en not_active Withdrawn
-
2007
- 2007-02-14 WO PCT/EP2007/051410 patent/WO2007122023A1/en active Application Filing
- 2007-02-14 BR BRPI0706557-4A patent/BRPI0706557A2/en not_active IP Right Cessation
- 2007-02-14 EP EP07726366A patent/EP2013471B1/en not_active Not-in-force
- 2007-02-14 AT AT07726366T patent/ATE535707T1/en active
- 2007-02-14 CN CNA2007800143041A patent/CN101427020A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110691904A (en) * | 2017-03-29 | 2020-01-14 | 瓦锡兰芬兰有限公司 | High-pressure fuel pump assembly for internal combustion piston engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2013471B1 (en) | 2011-11-30 |
| EP2013471A1 (en) | 2009-01-14 |
| BRPI0706557A2 (en) | 2011-03-29 |
| DE102006018702A1 (en) | 2007-10-25 |
| WO2007122023A1 (en) | 2007-11-01 |
| ATE535707T1 (en) | 2011-12-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090506 |