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EP1669582A1 - Système d'injection intègre - Google Patents

Système d'injection intègre Download PDF

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Publication number
EP1669582A1
EP1669582A1 EP04106278A EP04106278A EP1669582A1 EP 1669582 A1 EP1669582 A1 EP 1669582A1 EP 04106278 A EP04106278 A EP 04106278A EP 04106278 A EP04106278 A EP 04106278A EP 1669582 A1 EP1669582 A1 EP 1669582A1
Authority
EP
European Patent Office
Prior art keywords
injection system
cylinder head
internal combustion
hood
combustion engine
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
Application number
EP04106278A
Other languages
German (de)
English (en)
Other versions
EP1669582B1 (fr
Inventor
Guenther Bartsch
Ingo Lenz
Bert Pingen
Carsten Weber
Richard Fritsche
Andrej Rawdin
Walter Blume
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to EP20040106278 priority Critical patent/EP1669582B1/fr
Priority to DE200450011493 priority patent/DE502004011493D1/de
Priority to DE200450006206 priority patent/DE502004006206D1/de
Priority to EP06114462A priority patent/EP1715168B1/fr
Publication of EP1669582A1 publication Critical patent/EP1669582A1/fr
Application granted granted Critical
Publication of EP1669582B1 publication Critical patent/EP1669582B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/18—Fuel-injection apparatus having means for maintaining safety not otherwise provided for
    • F02M2200/185—Fuel-injection apparatus having means for maintaining safety not otherwise provided for means for improving crash safety
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials

Definitions

  • the invention relates to an internal combustion engine with a cylinder head, which is associated with an injection system, wherein a hood is connectable to the cylinder head.
  • EP 0 445 355 B1 relates to an apparatus and method for casting cylinder heads for internal combustion engines, and more particularly to core assemblies and elements, casting methods using such core assemblies and elements, and products of these methods, and to an apparatus having cylinder heads for internal combustion engines ,
  • the core assembly includes an inlet core having a plurality of core support and positioning surfaces, a coolant jacket core provided for insertion into the core assembly, the coolant jacket core having a plurality of core positioning portions provided to connect to a plurality of core support members. or positioning of the inlet core for supporting and positioning the coolant jacket core to engage the inlet core.
  • the core assembly also includes an outlet core adapted for insertion into the core assembly, the outlet core having a plurality of core positioning portions provided to engage a plurality of core support and positioning surfaces of the inlet core for supporting and positioning the core Outlet core on the inlet core, and further comprising a plurality of elongated, Auslrawkern forming portions which extend through the coolant jacket core, the inlet core further having a plurality of elongated, inlet-forming portions which extend through the coolant jacket core when the coolant jacket core in the core assembly is inserted.
  • the coolant jacket core, the outlet core and the inlet core are each one-piece cores and positioned by their core support and positioning exactly to each other.
  • the method is intended to provide a one-piece coolant jacket core, a one-piece outlet core, and a one-piece inlet core, wherein the one-piece coolant jacket core, one-piece outlet core and one-piece inlet core are interleaved to be supported and positioned against one another by cut surfaces.
  • the cylinder head casting has a long cylinder block closing portion for closing a plurality of cylinders formed in a block of an internal combustion engine and providing an air inlet and an air outlet.
  • the cylinder block closing portion has a plurality of spaced head portions provided to close the plurality of cylinders in the block.
  • the cylinder block closing portion further forms a plurality of air intake passages transverse to the long cylinder block closing portion and communicating with the plurality of spaced head portions, and forming a cylinder head side portion and an air intake manifold cavity extending along the cylinder head casting extends between the plurality of transverse air intake passages and the side of the cylinder head casting.
  • DE 198 01 171 C1 discloses a fuel injection device for a consisting of the crankcase, cylinder head and cylinder head cover multi-cylinder internal combustion engine with plug-in bores in the cylinder head and projecting into the combustion chamber of the engine to be supplied fuel injection valves and with a fuel injection valves and shielded by a housing part distribution bar.
  • the housing part is an outer and the cylinder head cover adjacent shielding.
  • the distributor strip accommodated in the shielding part is connected to the end regions of the fuel injection valves.
  • the longitudinal side wall of the cylinder head has, for a part of each fuel injection valve that is exposed from the receiving bore, exhaust nichelike indentations.
  • the injection system is attached laterally from the outside to the cylinder head or to an intake pipe.
  • the injection system is often located in a crash area of a motor vehicle and therefore must be increased Meet requirements for strength and ductility.
  • the injection system is extremely expensive from metallic components, such. As steel or aluminum assembled. The materials used also have a relatively high thermal conductivity, so that it may come to a fuel vapor bubble formation in the injection system.
  • hood in particular a valve cover or a valve cover with integration elements such as an intake system and the injection system in an extremely cost-intensive manner are designed as completely separate modules. An assembly of these two assemblies is extremely cumbersome and very expensive.
  • the invention has for its object to improve an internal combustion engine of the type mentioned with simple means to the effect that the injection system is crash-protected.
  • the invention has for its object to improve an internal combustion engine of the type mentioned with simple means to the extent that this is cheaper to produce.
  • the cylinder head with its inlet channels is designed such that the injection system between the intake ports and a cylinder head oil space is mountable, so that the injection system is arranged in a crash-protected interior
  • the injection system in the interior of the cylinder head between the cylinder head oil space and the intake ports are all critical, gasoline-carrying components crash-protected within the rigid cylinder head structure.
  • the injection system is virtually integrated in the cylinder head, which is surrounded on the one hand by the rigid or rigid cylinder head oil space and on the other hand by the rigid inlet channels.
  • the increased requirements for deformability can be omitted, which allows a much more cost-effective production.
  • the injection system has at least one injection nozzle and a supply strip, wherein the injection nozzle is arranged in an associated inlet channel.
  • the injection nozzle is preferably arranged with respect to a central axis at an acute angle, preferably at an angle of 15 °, in the inlet channel.
  • the injection system is preferably arranged on a "cold side" of the internal combustion engine, namely the inlet side, and can be favorably formed from a plastic.
  • a suitable plastic advantageously has a lower thermal conductivity than metal, so that the injection system heats up less quickly than in an embodiment of metal. This low heating advantageously reduces fuel vapor bubble formation in the injection system.
  • a common assembly consisting of hood and injection system is preferably made of a plastic according to the invention.
  • this common assembly can be arranged with its injection system in the crash-protected inner region between the intake ports and the cylinder head oil space.
  • the hood can, inter alia, take over the function of the intake air duct from an intake air collector to the cylinder head side intake duct.
  • the hood with the injection system preferably positively frictionally connected to the supply rail, in particular latched or screwed. It is also conceivable that the hood with the injection system, preferably cohesively connected to the supply rail, in particular glued and / or welded. In a further embodiment, it is possible that an upper part of the injection system, in particular an upper part whose supply strip is integrated into the hood, wherein a lower part of the injection system, in particular its supply strip separately connectable to the hood, for example screwed, locked, glued and / or welded is.
  • the hood itself can be configured in one piece or in several parts.
  • the injection system preferably the supply rail with the hood is made in one piece.
  • FIG. 1 shows a cylinder head 1 of an internal combustion engine.
  • a four-cylinder internal combustion engine is shown, wherein the individual cylinders are arranged in series.
  • the cylinder head 1 is associated with an injection system 2, which will be explained in more detail below.
  • a hood 21, not shown in Figure 1 is connected, which will be explained in more detail below.
  • the cylinder head 1 is designed with its intake ports 3 such that the injection system 2 between the intake ports 3 and a cylinder head oil chamber 4 can be mounted.
  • the inlet ducts 3 are made in one piece with the cylinder head 1 and, based on a central axis X, are directed away from it in the direction of the hood. In the illustrated embodiment, the inlet channels 3 are pulled to "outside" and bent upwards. It can clearly be seen in FIG. 2 that the inlet channels 3 run quasi in accordance with a quadrant section.
  • the injection system 2 has at least one injection nozzle 6 and an unillustrated supply strip 23 (FIGS. 3 to 6). Since in the illustrated embodiment, a four-cylinder in-line engine is shown, each injection port 3 is assigned according to an injection nozzle 6.
  • the injection nozzle 6 is arranged with respect to the central axis X at an acute angle, preferably at an angle of 15 °, in the inlet channel 3.
  • the supply rail 23 supplies each of the injectors 6 with fuel which is injected into the intake passage 3.
  • the supply bar 23 is described in more detail below as the hood 21 below.
  • receptacles 7 are arranged in the respective inlet channel.
  • a crash-protected inner area 8 is formed between the inlet channels 3 and the cylinder head oil space 4.
  • the injection system 2 is arranged.
  • the injection system 2 is thus arranged on a "cold side" of the internal combustion engine and that on its inlet side.
  • a bulkhead 14 for closing the inner region 8 is provided on the last inlet channel 3 relative to the control side 9.
  • the injection system 2 is quasi integrated in the cylinder head 1 and enough crash-protected.
  • a reinforcing wall 15 can be arranged, which additionally protects the crash-protected inner area 8 (FIG. 7).
  • openings 20 for cooling the cylinder head 1 and / or the liquid drain of possibly accumulating liquid, such as water may be introduced.
  • such a wall may also be provided between the wall 11 adjacent to the inlet channel 3 and the wall 11 itself, which may also have the aforementioned openings, wherein in the wall 11, of course, no opening is provided.
  • the openings 20 are made relatively large in the illustrated embodiment, and can of course be made smaller than shown.
  • FIG. 2 shows a perspective side view of the cylinder head 1.
  • the injection system 2 the timing chain channel 12 and the bulkhead 14 are not shown in order to be able to represent the design of the interior region 8 more clearly.
  • FIG. 2 shows a gearwheel 16 arranged on the control side 9, which shows a camshaft 17 with cams 18 arranged thereon. The cams 18 serve to control respective valves.
  • spark plugs 19 are each offset laterally, as seen in the longitudinal direction of the cylinder head 1, with each spark plug 19 associated with each intake port 3 or combustion chamber.
  • FIG. 1 and 2 a four-cylinder in-line engine with two valves per combustion chamber is shown.
  • the invention is of course not limited to this embodiment, so that internal combustion engines with more or fewer cylinders, or other cylinder arrangements according to the invention be ausgestaltbar, which is also conceivable to use other Steuertrieb- or valve train concepts instead of a timing chain.
  • the invention can also be used in internal combustion engines having more valves in each combustion chamber.
  • FIG. 3 shows a cross section through the above-mentioned hood 21 with an associated injection system 2.
  • the injection system 2 has the supply strip 23 and the injection nozzle 6 arranged thereon.
  • the injection system 2 and the hood 21 are separate components, which are positively frictionally connected to each other, preferably latched, so that a one-piece component for mounting is formed.
  • the supply strip 23 is seen in cross-section as a hollow duct with an example circular wall 24 configured, the duct seen in cross section, of course, can have any other meaningful design.
  • the wall 24 are associated on both sides latching elements 26 which engage in counter-locking means 27 which are incorporated in the hood 21.
  • the locking elements 26 are seen in cross-section L-shaped with an L-web 28 and a perpendicular thereto arranged L-leg 29 configured. With its L-web 28, the respective latching element 26 is connected to an outer periphery of the wall 24. At a free end 31 of the L-leg 29 is seen in cross-section approximately mushroom-shaped locking head 32 which cooperates with its locking edges 33 with corresponding locking surfaces of the counter-locking means 27.
  • the counter-locking means 27 are designed as movable rods 34, so that they initially dodge at a latching with the latching elements 26 to then spring back to their original position, wherein the locking edges 33 engage behind the latching surfaces kraftformschlüssig. In this position, the injection system 2 is sufficiently connected to the hood 21.
  • FIG. 4 shows a further embodiment of a possible connection of the hood 21 to the injection system 2.
  • a force-locking screw connection is shown in FIG.
  • the screw 37 is screwed into complementary threaded holes.
  • the threaded holes are in Bars introduced, which extend between the rods 34, so that the rods 34 are substantially rigid.
  • Figure 5 shows a further embodiment for connecting the hood 21 with the injection system 2.
  • the injection system 2 is designed with its supply strip 23 in two parts.
  • an upper part 38 of the supply strip 23 is made in one piece with the hood 21, wherein a lower part 39 of the supply strip 23 is made separately, wherein the lower part 39, the injection nozzle 6 is associated.
  • the supply bar 23 is formed in the connection of the upper part 38 with the lower part 39, so the connection of the lower part 39 with the hood 21, the supply bar 23 is formed.
  • the supply strip 23 is seen in this embodiment with its duct in cross-section oval designed.
  • the connection between the two parts 38 and 39 can be made with mutually corresponding connection surfaces 41.
  • Conceivable here is a screw, snap, adhesive or welded connection, wherein in Figure 5 by way of example an adhesive bond is shown.
  • FIG. 6 shows a component made entirely in one piece and consisting of the injection system 2, in particular its supply strip 23 and the hood 21.
  • the hood 21 may be referred to as a valve cover, which is connected in the embodiments according to Figures 3 to 6 with the inlet channel 3.
  • the hood 21 can thus u.a. take over the function of the intake air guide from an intake air collector, not shown, to the cylinder head side intake port 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
EP20040106278 2004-12-03 2004-12-03 Système d'injection intègré Expired - Lifetime EP1669582B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20040106278 EP1669582B1 (fr) 2004-12-03 2004-12-03 Système d'injection intègré
DE200450011493 DE502004011493D1 (de) 2004-12-03 2004-12-03 Integriertes Einspritzsystem
DE200450006206 DE502004006206D1 (de) 2004-12-03 2004-12-03 Integriertes Einspritzsystem
EP06114462A EP1715168B1 (fr) 2004-12-03 2004-12-03 Système d'injection intégré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040106278 EP1669582B1 (fr) 2004-12-03 2004-12-03 Système d'injection intègré

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06114462A Division EP1715168B1 (fr) 2004-12-03 2004-12-03 Système d'injection intégré

Publications (2)

Publication Number Publication Date
EP1669582A1 true EP1669582A1 (fr) 2006-06-14
EP1669582B1 EP1669582B1 (fr) 2008-02-13

Family

ID=34929991

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20040106278 Expired - Lifetime EP1669582B1 (fr) 2004-12-03 2004-12-03 Système d'injection intègré
EP06114462A Expired - Lifetime EP1715168B1 (fr) 2004-12-03 2004-12-03 Système d'injection intégré

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06114462A Expired - Lifetime EP1715168B1 (fr) 2004-12-03 2004-12-03 Système d'injection intégré

Country Status (2)

Country Link
EP (2) EP1669582B1 (fr)
DE (2) DE502004011493D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251406B4 (de) * 2002-11-05 2013-08-22 Mann + Hummel Gmbh Saugmodul für einen Verbrennungsmotor
DE102013016722A1 (de) * 2013-10-09 2015-04-09 Daimler Ag Integration eines Kraftstoffrails in die Zylinderkopfhaube einer Brennkraftmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909731A1 (fr) * 2006-12-08 2008-06-13 Renault Sas Procede de fabrication d'une partie de moteur concernant l' admission de comburant et moteur polycarburant et utilisation de ce moteur

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757789A (en) * 1985-07-08 1988-07-19 Automobiles Peugeot Cylinder head of an injection-fed internal combustion engine
US4913119A (en) * 1988-08-03 1990-04-03 Usui Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly
US5533485A (en) * 1994-06-27 1996-07-09 Robert Bosch Gmbh Fuel injection device for internal combustion engines
US5682859A (en) * 1996-01-22 1997-11-04 Siemens Automotive Corporation Method and arrangement for mounting fuel rails
US6076505A (en) * 1998-01-15 2000-06-20 Daimlerchrysler Ag Fuel injection arrangement for a multicylinder internal combustion engine
EP1146225A2 (fr) * 2000-04-13 2001-10-17 Siemens Canada limited Rampe à carburant encliquetable
EP1441122A1 (fr) * 2003-01-24 2004-07-28 Nissan Motor Company, Limited Dispositif de protection du tube d'alimentation de combustible pour un moteur à combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730817A1 (de) * 1987-09-14 1989-03-23 Porsche Ag Zylinderkopfhaube mit saugrohranlage fuer eine brennkraftmaschine
DE29603254U1 (de) * 1996-02-23 1997-07-17 Robert Bosch Gmbh, 70469 Stuttgart Zylinderkopfhaube einer Brennkraftmaschine
JP2982754B2 (ja) * 1997-07-25 1999-11-29 三菱自動車工業株式会社 筒内噴射型火花点火式内燃エンジン
US6095105A (en) * 1999-03-01 2000-08-01 Ford Global Technologies, Inc. Plenum/runner module having integrated engine valve cover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757789A (en) * 1985-07-08 1988-07-19 Automobiles Peugeot Cylinder head of an injection-fed internal combustion engine
US4913119A (en) * 1988-08-03 1990-04-03 Usui Kokusai Sangyo Kaisha Ltd. Fuel delivery rail assembly
US5533485A (en) * 1994-06-27 1996-07-09 Robert Bosch Gmbh Fuel injection device for internal combustion engines
US5682859A (en) * 1996-01-22 1997-11-04 Siemens Automotive Corporation Method and arrangement for mounting fuel rails
US6076505A (en) * 1998-01-15 2000-06-20 Daimlerchrysler Ag Fuel injection arrangement for a multicylinder internal combustion engine
EP1146225A2 (fr) * 2000-04-13 2001-10-17 Siemens Canada limited Rampe à carburant encliquetable
EP1441122A1 (fr) * 2003-01-24 2004-07-28 Nissan Motor Company, Limited Dispositif de protection du tube d'alimentation de combustible pour un moteur à combustion interne

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251406B4 (de) * 2002-11-05 2013-08-22 Mann + Hummel Gmbh Saugmodul für einen Verbrennungsmotor
DE102013016722A1 (de) * 2013-10-09 2015-04-09 Daimler Ag Integration eines Kraftstoffrails in die Zylinderkopfhaube einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE502004006206D1 (de) 2008-03-27
EP1669582B1 (fr) 2008-02-13
DE502004011493D1 (de) 2010-09-16
EP1715168B1 (fr) 2010-08-04
EP1715168A1 (fr) 2006-10-25

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