CN101545434B - Common rail system - Google Patents

Common rail system Download PDF

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Publication number
CN101545434B
CN101545434B CN2009101302455A CN200910130245A CN101545434B CN 101545434 B CN101545434 B CN 101545434B CN 2009101302455 A CN2009101302455 A CN 2009101302455A CN 200910130245 A CN200910130245 A CN 200910130245A CN 101545434 B CN101545434 B CN 101545434B
Authority
CN
China
Prior art keywords
high pressure
cylinder
under high
pressure pipeline
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.)
Expired - Fee Related
Application number
CN2009101302455A
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Chinese (zh)
Other versions
CN101545434A (en
Inventor
N·博克霍夫
A·哈南坎普
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Energy Solutions SE
Original Assignee
MAN Diesel SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAN Diesel SE filed Critical MAN Diesel SE
Publication of CN101545434A publication Critical patent/CN101545434A/en
Application granted granted Critical
Publication of CN101545434B publication Critical patent/CN101545434B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0684—High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • 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
    • 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
    • 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
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/006—Measuring or detecting fuel leakage of 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/05—Miscellaneous constructional elements; Leakage detection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention relates to a common rail system for feeding liquid fuel into a cylinder of a dual fuel engine for igniting a gas-air mixture present in the cylinder, comprising a pump device for feeding liquid fuel from a low pressure region to a high pressure region, wherein a double-walled high pressure fuel pipe (3) is arranged in the high pressure region between the pump device and an injector associated with the cylinder, such that liquid fuel is fed to the injector of the cylinder through an inner pipe (4) of the high pressure fuel pipe and a leakage between the inner pipe and the outer pipe is conducted into a leakage collection vessel (6) through an outer pipe (5) surrounding the inner pipe. The high-pressure fuel line is provided with a leakage detection device (10) between each cylinder and the injector, and each leakage detection device releases the flow passing through the outer pipe of the high-pressure fuel line in a first position and blocks the flow passing through the outer pipe of the high-pressure fuel line in a second position.

Description

Common rail system
Technical field
The present invention relates to a kind of common rail system of internal-combustion engine.
Background technique
In service with the internal-combustion engine of duel fuel engine formal construction, a kind of thin gas-air mixture of burning in the so-called combustion gas cylinder at duel fuel engine in service, wherein this thin gas-air mixture is lighted by a kind of liquid fuel.This liquid fuel supplies to the cylinder of duel fuel engine through the ejecting system that is configured to common rail system, promptly supplies with in this wise, makes that the sparger with the cylinder phase configuration sprayed into liquid fuel in the firing chamber of this cylinder before the upper dead center near cylinder.Liquid fuel catches fire owing to its low SIT and the ignition energy that discharges can make thin gas-air mixture catch fire or lights.
Fig. 1 illustrates a kind of schematic views of common rail system of duel fuel engine well known in the prior art, and this common rail system is used for supplying with or the injection liquid fuel to the cylinder of duel fuel engine.Therefore having at the common rail system shown in Fig. 1 should pump-unit 1, be used for liquid fuel is transported to the zone of high pressure from low pressure area, wherein in the zone of high pressure at pump-unit 1 be the fuel under high pressure pipeline 3 of layout double-walled between the sparger 2 of cylinder arrangement.Pipe 4 in the fuel under high pressure pipeline 3 of double-walled has is fed to the sparger 2 of cylinder through pipe in this with liquid fuel, so that through sparger 2 liquid fuel is sprayed in the cylinder of duel fuel engine.
The interior pipe 4 of the fuel under high pressure pipeline 3 of double-walled is surrounded by outer tube 5, and its middle external tube 5 is used for the leakage between interior pipe 4 and the outer tube 5 is discharged into leakage collecting container 6.According to Fig. 1, leak collecting container 6 and be connected through the outer tube 5 of leakage pipe 7 with the fuel under high pressure pipeline 3 of double-walled.In the connection part of interior pipe of fuel under high pressure pipeline 34 and sparger 2, be discharged in the backflow collecting container 9 of low pressure area of supply system through reflux line 8 as leaking the liquid fuel that occurs.
When between interior pipe 4 and outer tube 5, occurring leaking; Then this leakage is discharged into through leakage pipe 7 and leaks in the collecting container 6; Wherein in by common rail system well known in the prior art; When in having confirmed leakage collecting container 6, leakage being arranged, can not be with clearly defined objectively and automatically detect fuel under high pressure pipeline 3 that section of leaking appears between interior pipe 4 and outer tube 5 within it.
Summary of the invention
Set out thus, the problem that the present invention will solve provides a kind of new-type common rail system.
This problem solves through a kind of common rail system of duel fuel engine.This common rail system is used for the gas-air mixture of cylinder to exist in the gas cylinder of delivering liquid fuel to duel fuel engine; This common rail system comprises a low pressure area and the pump-unit with at least one high-pressure service pump; Be used for liquid fuel is transported to a zone of high pressure from low pressure area; Wherein in the zone of high pressure pump-unit and and the sparger of cylinder arrangement between arrange the fuel under high pressure pipeline of double-walled; Make the sparger that can liquid fuel be fed to cylinder through the interior pipe of this fuel under high pressure pipeline, and will be directed to one in the leakage between interior pipe and the outer tube through outer tube and leak in the collecting container around interior pipe.According to the present invention; The fuel under high pressure pipeline respectively is furnished with a leak detecting device attaching troops to a unit in other words between each cylinder between each sparger of this cylinder; Wherein each leak detecting device on a primary importance, discharge through the fuel under high pressure pipeline flowing of outer tube and on a second place the flowing of the outer tube of blocking-up through the fuel under high pressure pipeline; Wherein the outer tube of fuel under high pressure pipeline is furnished with block device and the bypass branch road that surrounds block device in the zone of each leak detecting device, and wherein the bypass branch road is blocked on the second place at each leak detecting device being released on the primary importance of each leak detecting device.
In according to common rail system of the present invention; The fuel under high pressure pipeline is at each cylinder and respectively be furnished with a leak detecting device thus between the sparger; In leaking collecting container, detect when leaking, then can detect that portion's section that appearance is leaked between interior pipe and outer tube of fuel under high pressure pipeline with clearly defined objectively within it by means of leak detecting device.Each leak detecting device moves between a primary importance and second place for this reason, wherein discharges flowing of outer tube through the fuel under high pressure pipeline and the flowing of the outer tube of this leak detecting device blocking-up through the fuel under high pressure pipeline on the second place at this leak detecting device on the primary importance.
Provide preferred expansion scheme of the present invention by dependent claims and following description.Embodiments of the invention will describe according to accompanying drawing, but the present invention is not limited to these embodiments.
Description of drawings
Fig. 1 is a kind of by the known internal-combustion engine block diagram of existing technology;
Fig. 2 is in detailed drawing primary importance at it according to internal-combustion engine common rail system of the present invention in the zone of a leak detecting device;
Fig. 3 is the detailed drawing of Fig. 2 on the second place of leak detecting device.
Embodiment
Below referring to Fig. 2 and 3 details according to common rail system of the present invention is described, wherein Fig. 2 and 3 illustrates a part according to the fuel under high pressure pipeline 3 of common rail system of the present invention.
About can be referring to explanation to Fig. 1 according to the principles of construction of common rail system of the present invention, below only to making common rail system of the present invention and other those details of common rail system phase region well known in the prior art describe.
Like what can see among Fig. 1; All spargers 2 with all be supplied to the liquid fuel that is used to light thin gas-air mixture with whole cylinders of the internal-combustion engine of duel fuel engine formal construction thus through the interior pipe 4 of fuel under high pressure pipeline 3, wherein sparger 2 one after the other and between the pump-unit 1 apart is connected on the interior pipe 4 of fuel under high pressure pipeline 3 to different spacing before and after on the flow direction of liquid fuel.Fig. 2 and 3 shows in the zone between the sparger 2 of two interrelations or at pump-unit 1 with near a part of the regional mesohigh fuel channel 3 between the sparger 2 of this pump-unit 1 now.
On the meaning of the present invention herein thus; Each cylinder and therefore between each sparger 2 and preferred also at pump-unit 1 and between near the cylinder 2 of this pump-unit 1 for the fuel under high pressure pipeline 3 of common rail system respectively disposes a leak detecting device 10, this leak detecting device can the primary importance shown in Fig. 2 and between the second place shown in Fig. 3 along the preferred translation of direction of the double-head arrow shown in Fig. 2 and 3 move.
On primary importance according to Fig. 2; Leak detecting device 10 discharges through the flowing of the outer tube 5 of fuel under high pressure pipeline 3, promptly through outer tube 5 between two adjacent spargers 2 or at pump-unit 1 with the flowing of that section of extending between near the sparger 2 of this pump-unit 1.
Opposite on the second place according to Fig. 3, leak detecting device 10 is blocked flowing through this section of the outer tube 5 of fuel under high pressure pipeline 3.
According to Fig. 2 and 3, the outer tube 5 of pressurized fuel pipeline 3 is furnished with block device 11 and the bypass branch road 12 that surrounds block device 11.On the primary importance according to Fig. 2 of leak detecting device 10, omission is surveyed device 10 and is discharged bypass branch roads 12, thereby although there is block device 11, the flowing of outer tube 5 through fuel under high pressure pipeline 3 still is released.Opposite on the second place according to Fig. 3, device 10 blocking-up bypass branch roads 12 are surveyed in omission, thereby this moment, the through-flow of outer tube 5 through fuel under high pressure pipeline 3 was blocked.
When in leaking collecting container 6, detecting the existing of leakage; Then can judge in the interior pipe 4 of fuel under high pressure pipeline 3 and the leakage between the outer tube 5; Wherein in order to detect unsealed section of fuel under high pressure pipeline 3, each leak detecting device 10 can one after the other move to the second place according to Fig. 3 from the primary importance according to Fig. 2 on the detection time that limits.
At first on the time span of a qualification, move to according to the second place of Fig. 3 and check that leak detecting device 10 near pump-unit 1 location of operation from primary importance according to Fig. 2.If leak be arranged in fuel under high pressure pipeline 3 be assigned to this near portion's section of the leak detecting device 10 of pump-unit 1 location, will have leakage to be transported to so and leak in the collecting container 1.On the contrary, do not leak in the collecting container 1, so can judge the sealing of this section of fuel under high pressure pipeline yet if there is leakage to be transported to.
Then again will be move on the primary importance shown in Figure 2 and the leak inspection device 10 that will be connected with this leak inspection device 10 then moves on the second place shown in Figure 3, be used for checking then whether portion's section subsequently of fuel under high pressure pipeline 3 exists leakage near the leak detecting device 10 of pump-unit 1 location of operation.By this way and method, can one after the other check the leakage situation of each section of fuel under high pressure pipeline 3.
Reference numerals list
1 pump-unit
2 spargers
3 fuel under high pressure pipelines
Pipe in 4
5 outer tubes
6 leak collecting container
7 leakage pipes
8 reflux lines
9 backflow collecting containers
10 leak inspection devices
11 block devices or blocked valve
12 bypass branch road or bypass valve

Claims (5)

1. the common rail system of duel fuel engine; It is used for the gas-air mixture of cylinder to exist in the gas cylinder of delivering liquid fuel to duel fuel engine; This common rail system comprises a low pressure area and the pump-unit with at least one high-pressure service pump; Be used for liquid fuel is transported to a zone of high pressure from low pressure area; Wherein in the zone of high pressure pump-unit and and the sparger of cylinder arrangement between arrange the fuel under high pressure pipeline of double-walled; The feasible sparger that can liquid fuel be fed to cylinder through the interior pipe of this fuel under high pressure pipeline; And will be directed to one in the leakage between interior pipe and the outer tube through the outer tube around interior pipe leaks in the collecting container; It is characterized in that; This fuel under high pressure pipeline (3) respectively is furnished with a leak detecting device (10) attaching troops to a unit in other words between each cylinder between each sparger (2) of this cylinder; Wherein each leak detecting device (10) discharge on the primary importance outer tube (5) through fuel under high pressure pipeline (3) flow and on a second place the flowing of the outer tube (5) of blocking-up through fuel under high pressure pipeline (3), wherein the outer tube (5) of fuel under high pressure pipeline (3) is furnished with the bypass branch road (12) of block device (11) and encirclement block device (11) in the zone of each leak detecting device (10), wherein bypass branch road (12) is released on the primary importance of each leak detecting device (10) and on the second place of each leak detecting device (10), is blocked.
2. according to the described common rail system of claim 1; It is characterized in that; Each leak detecting device (10) is discharging mobile in that section of between the sparger (2) of this cylinder, extending of attaching troops to a unit in other words between the cylinder of outer tube (5) through the fuel under high pressure pipeline on the primary importance; Each corresponding leak detecting device of location between this sparger, and each leak detecting device (10) block this section mobile of the outer tube (5) through the fuel under high pressure pipeline on the second place.
3. according to claim 1 or 2 described common rail systems; It is characterized in that; On the flow direction of liquid fuel, see, one after the other be connected on the fuel under high pressure pipeline (3) to different spacing at interval before and after cylinder and the sparger (2) in this cylinder of attaching troops to a unit with pump-unit (1).
4. according to the described common rail system of claim 3, it is characterized in that, at pump-unit (1) and portion's section of the fuel under high pressure pipeline (3) that between the sparger (2) of this cylinder, extends of attaching troops to a unit in other words near the cylinder of pump-unit (1) also be furnished with leak detecting device (10).
5. according to claim 1 or 2 described common rail systems; It is characterized in that; In leaking collecting container (6), exist under the situation of leakage; In order to detect unsealed section of fuel under high pressure pipeline (3), leak detecting device (10) can one after the other move to the second place from primary importance in front and back on the detection time that limits.
CN2009101302455A 2008-03-26 2009-03-26 Common rail system Expired - Fee Related CN101545434B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008015611A DE102008015611A1 (en) 2008-03-26 2008-03-26 Common Rail System
DE102008015611.6 2008-03-26

Publications (2)

Publication Number Publication Date
CN101545434A CN101545434A (en) 2009-09-30
CN101545434B true CN101545434B (en) 2012-08-08

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CN2009101302455A Expired - Fee Related CN101545434B (en) 2008-03-26 2009-03-26 Common rail system

Country Status (5)

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JP (1) JP4965595B2 (en)
KR (1) KR101385249B1 (en)
CN (1) CN101545434B (en)
DE (1) DE102008015611A1 (en)
FI (1) FI20095247L (en)

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CH702496B1 (en) * 2010-05-07 2011-07-15 Liebherr Machines Bulle Sa Power injector.
EP2589791B1 (en) * 2011-11-04 2014-12-17 Caterpillar Motoren GmbH & Co. KG Fuel inlet valve and cylinder head for housing a fuel inlet valve
EP2589780A1 (en) * 2011-11-04 2013-05-08 Caterpillar Motoren GmbH & Co. KG Fuel supply system with leakage detection means
ES2536309T3 (en) 2011-11-04 2015-05-22 Caterpillar Motoren Gmbh & Co. Kg Double wall fuel supply pipe element
DE102013000606A1 (en) * 2013-01-16 2014-07-17 Man Diesel & Turbo Se Fuel supply system
DE102013006301B4 (en) * 2013-04-12 2023-09-21 Man Energy Solutions Se Fuel supply and purging device for a gas engine
EP2952727B1 (en) * 2014-06-04 2017-11-22 Caterpillar Motoren GmbH & Co. KG Valve for fuel supply system
DE102016123055A1 (en) * 2016-11-30 2018-05-30 Man Diesel & Turbo Se Fuel supply system and power distribution block
US10545066B2 (en) 2016-12-15 2020-01-28 Caterpillar Inc. Leak detection tool
KR102086885B1 (en) * 2016-12-29 2020-03-09 현대중공업 주식회사 Pipe Structure for Easily Detection Fuel Gas Leak of Dual Fuel Engine

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EP1150006A2 (en) * 2000-04-27 2001-10-31 Wärtsilä Technology Oy AB Arrangement for locating fuel leakage in connection with a combustion engine
CN1420266A (en) * 2001-11-21 2003-05-28 曼·B及W柴油机公开股份有限公司 Device for supply of fuel in form of public fuel supply piping structure in multi-cylinder IC engine
DE10245389A1 (en) * 2002-09-28 2004-04-08 Daimlerchrysler Ag Double wall common rail injection system for a combustion engine and leak tightness testing method has high pressure lead for applying a test gas
CN1867762A (en) * 2003-10-17 2006-11-22 瓦特西拉芬兰有限公司 Leak alarm for high-pressure pipe

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Publication number Priority date Publication date Assignee Title
EP1150006A2 (en) * 2000-04-27 2001-10-31 Wärtsilä Technology Oy AB Arrangement for locating fuel leakage in connection with a combustion engine
CN1420266A (en) * 2001-11-21 2003-05-28 曼·B及W柴油机公开股份有限公司 Device for supply of fuel in form of public fuel supply piping structure in multi-cylinder IC engine
DE10245389A1 (en) * 2002-09-28 2004-04-08 Daimlerchrysler Ag Double wall common rail injection system for a combustion engine and leak tightness testing method has high pressure lead for applying a test gas
CN1867762A (en) * 2003-10-17 2006-11-22 瓦特西拉芬兰有限公司 Leak alarm for high-pressure pipe

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Publication number Publication date
JP2009236113A (en) 2009-10-15
KR101385249B1 (en) 2014-04-16
JP4965595B2 (en) 2012-07-04
DE102008015611A1 (en) 2009-10-29
FI20095247A0 (en) 2009-03-11
CN101545434A (en) 2009-09-30
KR20090102630A (en) 2009-09-30
FI20095247L (en) 2009-09-27

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