CN101135287A - internal combustion engine - Google Patents

internal combustion engine Download PDF

Info

Publication number
CN101135287A
CN101135287A CNA2007101483061A CN200710148306A CN101135287A CN 101135287 A CN101135287 A CN 101135287A CN A2007101483061 A CNA2007101483061 A CN A2007101483061A CN 200710148306 A CN200710148306 A CN 200710148306A CN 101135287 A CN101135287 A CN 101135287A
Authority
CN
China
Prior art keywords
rail
fuel
combustion engine
transport path
internal
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
Application number
CNA2007101483061A
Other languages
Chinese (zh)
Inventor
F·胡斯利克
H·米勒
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 CN101135287A publication Critical patent/CN101135287A/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/107—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive pneumatic drive, e.g. crankcase pressure drive
    • 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
    • F02M59/38—Pumps characterised by adaptations to special uses or conditions
    • F02M59/42—Pumps characterised by adaptations to special uses or conditions for starting of 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
    • 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
    • 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
    • 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
    • F02M63/0265—Pumps feeding common rails
    • F02M63/027—More than one high pressure pump feeding a single common rail
    • 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
    • F02M2200/60—Fuel-injection apparatus having means for facilitating the starting of engines, e.g. with valves or fuel passages for keeping residual pressure in 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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The invention relates to an internal combustion engine having a common rail injection system for injecting fuel into a combustion chamber of the internal combustion engine, having a first fuel supply path (12) for supplying fuel from a fuel tank (11) to a rail (10), wherein a low-pressure pump (13) and a high-pressure pump (14) are connected in the first fuel supply path between the fuel tank and the rail, and having a device (15) connected in a second fuel supply path (16) which likewise leads to the rail for increasing the pressure prevailing in the rail in a predetermined operating mode of the internal combustion engine, in particular before the internal combustion engine is started. According to the invention, a device (15) for increasing the pressure prevailing in the rail is connected in a second fuel supply line (16) between the rail (10) and an additional fuel tank (17).

Description

Internal-combustion engine
Technical field
The present invention relates to a kind of as claim 1 or 2 internal-combustion engines as described in the preamble.
Background technique
By the known internal-combustion engine of DE10155381A1 with the single ejecting system of general rail (rail).Fuel is transported to so-called single ejecting system rail by the first fuel transport path, and wherein the first fuel transport path extends between rail and fuel tank, and connects a low pressure pump and a high-pressure service pump in the first fuel transport path.Also comprise a device that is used for improving in given internal combustion engine operation mode the pressure that exists at rail according to the disclosed there internal-combustion engine of DE10155381A1, the device that wherein is used for improving the pressure that exists at rail is connected the second fuel transport path the inside that directs into rail equally.The second fuel transport path is parallel to the first fuel transport path and extends, that is, two fuel transport paths produce and direct into same rail on same fuel tank.
Summary of the invention
The objective of the invention is thus, novel internal-combustion engine is provided.
Be achieved by internal-combustion engine as claimed in claim 1 according to this problem of a first aspect of the present invention.Be used in view of the above improving at the device of the pressure that rail exists and receive the second fuel transport path between rail and supplemental fuel tank.
When internal-combustion engine drove with heavy oil, a first aspect of the present invention was especially favourable, and wherein the first fuel transport path is used for heavy oil is transported to the rail of internal-combustion engine.Be preferably in this case diesel oil is provided in the supplemental fuel tank, need not heating equipment for second fuel path that is connected to the device that is used for improving the pressure that exists at rail thus.
Be achieved by internal-combustion engine as claimed in claim 2 according to this problem of a second aspect of the present invention.Be used for improving device at the pressure that rail exists in view of the above and be connected in the second fuel transport path between rail and low pressure pump, thereby between low pressure pump and high-pressure service pump, branch out the second fuel transport path from the first fuel transport path.
A second aspect of the present invention is favourable for the internal-combustion engine with diesel driven especially, wherein all need not heating equipment for the first fuel transport path and the second fuel transport path.
Provide advantageous modification of the present invention by dependent claims and following description.Describe one embodiment of the present of invention in detail by means of accompanying drawing, but be not limited to this.
Description of drawings
In the accompanying drawing:
Fig. 1 with the ten minutes simplified block diagram illustrate according to first embodiment of the invention according to internal-combustion engine of the present invention,
Fig. 2 with the ten minutes simplified block diagram illustrate according to second embodiment of the invention according to internal-combustion engine of the present invention.
Embodiment
The present invention relates to internal-combustion engine, it has a common-rail injection system that is used to inject fuel into the combustion chambers of internal combustion engines the inside.
Common-rail injection system according to internal-combustion engine of the present invention in the first embodiment of the invention shown in Fig. 1 comprises a rail 10, wherein the fuel that provides can be transported to rail 10 by the first fuel transport path in fuel tank 11, promptly by being combined in low pressure pump 13 and the high-pressure service pump 14 in the first fuel transport path 12.
Comprise a device 15 that is used in given internal combustion engine operation mode, especially before cranking internal combustion engine, improving the pressure that exists at rail 10 according to this internal-combustion engine of Fig. 1, wherein this device 15 is combined to the second fuel transport path, 16 the insides that direct into rail 10 equally.Extend between rail 10 and supplemental fuel tank 17 according to Fig. 1 second fuel transport path 16.
If shown in Figure 1 driving with heavy oil according to internal-combustion engine scheme internal-combustion engine of the present invention especially has advantage.In the fuel tank 11 that is also referred to as the primary fuel case, provide fuel heavy oil.And in the supplemental fuel tank 17 that is also referred to as the secondary fuel case, preferably provide diesel oil to act as a fuel in this case, need not heating equipment for the second fuel transport path 16 thus.
Fig. 2 illustrates the internal-combustion engine scheme according to the second embodiment of the present invention, wherein this internal-combustion engine of scheme according to Fig. 2 also comprises a common-rail injection system, wherein still can the fuel that provide in the fuel tank 19 be transported to a rail 18, in this transport path, connect a low pressure pump 21 and a high-pressure service pump 22 by the first fuel transport path 20.
Have a device 23 that is used for improving in given internal combustion engine operation mode the pressure that exists at rail 18 equally with the same internal-combustion engine according to Fig. 2 of internal-combustion engine of Fig. 1, wherein this device 23 still is connected the second fuel transport path, 24 the insides.The second fuel transport path 24 branches out between low pressure pump 21 and high-pressure service pump 22 from the first fuel transport path 20 in according to the embodiment of Fig. 2, and therefore the device 23 that is used for improving at the pressure that rail exists is connected between rail 18 and the low pressure pump 21.
Internal-combustion engine scheme according to Fig. 2 especially has advantage with the diesel driven internal-combustion engine time, if provide diesel fuel in unique fuel tank 19.But the scheme of Fig. 2 also can be used for the heavy oil internal combustion engine driven.
The device that is used for improving the pressure that exists at rail is a servo unit preferably, as known by DE10155381A1.
List of numerals
10 rails
11 fuel tanks
12 first fuel transport paths
13 low pressure pumps
14 high-pressure service pumps
15 devices
16 second fuel transport paths
17 supplemental fuel tanks
18 rails
19 fuel tanks
20 first fuel transport paths
21 low pressure pumps
22 high-pressure service pumps
23 devices
24 second fuel transport paths.

Claims (3)

1. internal-combustion engine, has the common-rail injection system that is used to inject fuel into the combustion chambers of internal combustion engines the inside, has the first fuel transport path that is used for fuel is transported to from fuel tank rail, wherein low pressure pump and high-pressure service pump are received in the first fuel transport path between fuel tank and the rail, and internal-combustion engine also has the device that is connected in the second fuel transport path that directs into rail equally, it is used in given internal combustion engine operation mode, especially improving the pressure that in rail, exists before the engine starting, it is characterized in that, be used for improving device (15) at the pressure that rail exists and be connected in the second fuel transport path (16) between rail (10) and supplemental fuel tank (17).
2. internal-combustion engine, has the common-rail injection system that is used to inject fuel into the combustion chambers of internal combustion engines the inside, has the first fuel transport path that is used for fuel is transported to from fuel tank rail, wherein low pressure pump and high-pressure service pump are connected in the first fuel transport path between fuel tank and the rail, and internal-combustion engine has the device that is connected in the second fuel transport path that directs into rail equally, it is used in given internal combustion engine operation mode, especially improving the pressure that in rail, exists before the engine starting, it is characterized in that, be used for improving device (23) at the pressure that rail exists and be connected in the second fuel transport path (24) between rail (10) and low pressure pump (21), thereby between low pressure pump (21) and high-pressure service pump (22), branch out the second fuel transport path (24) from the first fuel transport path (20).
3. internal-combustion engine as claimed in claim 1 or 2 is characterized in that, is used for improving at rail (10; The device of the pressure that exists 18) is made of servo unit.
CNA2007101483061A 2006-08-29 2007-08-29 internal combustion engine Pending CN101135287A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006040466.1 2006-08-29
DE102006040466A DE102006040466A1 (en) 2006-08-29 2006-08-29 Internal-combustion engine, has servo unit inserted into fuel supply path between rail and additional fuel tank for increasing pressure controlled in rail in given operation before starting engine

Publications (1)

Publication Number Publication Date
CN101135287A true CN101135287A (en) 2008-03-05

Family

ID=38069512

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101483061A Pending CN101135287A (en) 2006-08-29 2007-08-29 internal combustion engine

Country Status (5)

Country Link
JP (1) JP2008057532A (en)
KR (1) KR20080020450A (en)
CN (1) CN101135287A (en)
DE (1) DE102006040466A1 (en)
FI (1) FI123868B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066738A (en) * 2009-06-16 2011-05-18 曼柴油机和涡轮公司德国曼柴油机和涡轮欧洲股份公司的联营公司 A large turbocharged two-stoke diesel engine running on a fuel mixture of two or more fuel components

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8191534B2 (en) * 2008-02-28 2012-06-05 General Electric Company High viscosity fuel injection pressure reduction system and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011376A1 (en) * 1980-03-25 1981-10-01 Motoren-Werke Mannheim AG, vorm. Benz Abt. stat. Motorenbau, 6800 Mannheim Injection system for dual fuel diesel engine - has main injector with adjustable pressure divider for pilot injection (BR 11.8.81)
DE19753155A1 (en) * 1997-11-29 1999-06-02 Mannesmann Rexroth Ag Fuel supply system for an internal combustion engine and high pressure pump used therein
DE19823335C2 (en) * 1998-05-26 2001-05-31 Elsbett G Injection system for operation with different fuels
DE10154455A1 (en) * 2001-11-06 2003-05-15 Dietmar Gentsch Dual fuel system for diesel engine has separate tanks, fuel filters and high-pressure pumps feeding injectors or common rail system
DE10155381A1 (en) * 2001-11-10 2003-05-28 Mtu Friedrichshafen Gmbh Internal combustion engine with common rail injection system, has device for increasing rail pressure in defined mode as servo unit in second fuel feed path parallel to first from fuel tank to rail
DE10351507A1 (en) * 2003-11-05 2005-06-02 Robert Bosch Gmbh Process for operating a fuel system of an internal combustion engine, especially with direct fuel injection, comprises performing conveying strokes using a differential piston of pressure-generating device during start phase of the engine
JP2006077643A (en) * 2004-09-08 2006-03-23 Toyota Motor Corp Fuel injection device for internal combustion engine
DE202005017387U1 (en) * 2005-11-04 2006-02-02 Sellentin, Alexander Fuel supply mechanism for e.g. boat`s diesel engine, has fuel injection pump supplying fuel to nozzle, and three tanks provided for diesel fuel, for vegetable oil and fat and for receiving mixture of diesel fuel, oil and fat, respectively

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066738A (en) * 2009-06-16 2011-05-18 曼柴油机和涡轮公司德国曼柴油机和涡轮欧洲股份公司的联营公司 A large turbocharged two-stoke diesel engine running on a fuel mixture of two or more fuel components
CN102066738B (en) * 2009-06-16 2013-08-07 曼柴油机和涡轮公司,德国曼柴油机和涡轮欧洲股份公司的联营公司 A large turbocharged two-stoke diesel engine running on a fuel mixture of two or more fuel components

Also Published As

Publication number Publication date
FI123868B (en) 2013-11-29
JP2008057532A (en) 2008-03-13
FI20075345A (en) 2008-03-01
KR20080020450A (en) 2008-03-05
FI20075345A0 (en) 2007-05-14
DE102006040466A1 (en) 2008-03-06

Similar Documents

Publication Publication Date Title
JP4670450B2 (en) Fuel supply device for internal combustion engine
CN101435376B (en) Internal combustion engine starting system and method
US7201128B2 (en) Fuel supply system for internal combustion engine with direct fuel injection
US20150285164A1 (en) Fuel System for an Internal Combustion Engine which can be Operated with at least Two Fuel Types
JP4547052B2 (en) Fuel supply system
PL2143916T3 (en) Dual fuel injection system and motor vehicle comprising such injection system
KR20180051338A (en) Fuel supply module for combustion engine and automobile
CN103912407A (en) Common rail system for DME fuel
JP2013545027A (en) Internal combustion engine operated with liquid fuel and / or gaseous fuel
US10989122B2 (en) Dual-fuel fuel injection system for an internal combustion engine
JP4707156B2 (en) Liquefied gas fuel supply device for internal combustion engine
KR20130016218A (en) Fuel injection system of an internal combustion engine
JP4787208B2 (en) LIQUID GAS FUEL SUPPLY DEVICE AND METHOD FOR DRIVING HIGH PRESSURE PUMP
CN101135287A (en) internal combustion engine
US20110247337A1 (en) Hybrid drive system
FI130532B (en) Dual-fuel engine and method for operating the same
JP4168893B2 (en) Fuel supply device
US6655360B1 (en) Method for reducing the fuel pressure in a non-return fuel supply system
CN110578623A (en) Internal combustion engine with water injection system and method for operating an internal combustion engine
JP2004278491A (en) Fuel injecting device for internal combustion engine
JP2007247520A (en) Fuel supply system for internal combustion engine
KR20120018496A (en) Control method of fuel-pump
CN112096551B (en) fuel pump
EP3032086A1 (en) Fuel injection arrangement
JP2007071082A (en) Fuel injector of internal combustion engine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20080305