EP2132424A2 - Dispositif d'admission d'air d'alimentation pour moteur a combustion interne - Google Patents
Dispositif d'admission d'air d'alimentation pour moteur a combustion interneInfo
- Publication number
- EP2132424A2 EP2132424A2 EP08788042A EP08788042A EP2132424A2 EP 2132424 A2 EP2132424 A2 EP 2132424A2 EP 08788042 A EP08788042 A EP 08788042A EP 08788042 A EP08788042 A EP 08788042A EP 2132424 A2 EP2132424 A2 EP 2132424A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- intake device
- air
- ducts
- air intake
- distributor
- 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.)
- Withdrawn
Links
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
- F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
- F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
- F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10026—Plenum chambers
- F02M35/10032—Plenum chambers specially shaped or arranged connecting duct between carburettor or air inlet duct and the plenum chamber; specially positioned carburettors or throttle bodies with respect to the plenum chamber
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10262—Flow guides, obstructions, deflectors or the like
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/112—Intake manifolds for engines with cylinders all in one line
-
- 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
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a feed air intake device in the feed rolls of a combustion engine.
- It relates to a supply air intake device for an internal combustion engine having an angled distribution, from which are derived, from a series of substantially aligned branches, intake ducts joining each cylinder of the engine.
- It also relates to an engine, provided with such an admission device.
- This invention aims to promote a swirling movement type "swirl" in the cylinders thereof, and finds a preferred application, but not exclusive, on diesel engines.
- An angled intake air distributor may have two branches substantially parallel, joined by a bend at 180 °. Such a bend has a negative effect on the "swirl", in particular in the last fed cylinders (ie the last cylinders, in the direction of air flow along the second branch of the distributor ).
- the present invention aims to raise the level of "swirl" of the last cylinders, so as to counteract the decrease of "swirl", compared to the first cylinders, induced by the bend of the distributor.
- conduits have, at their branch on the distributor, a bump, narrowing their section on the side of the air inlet.
- the ducts concerned are the ducts furthest from the air inlet in the device, in particular the last two ducts in the direction of the air flow in the distributor.
- FIG. 1 is an overview of the admission device
- FIG. 2 is a section along A-A of FIG. 1
- FIG. 3 is a section along B-B of FIG.
- FIG. 1 there is shown a supply air intake device for an internal combustion engine according to the invention.
- This device comprises an angled distributor 1, having two substantially parallel branches, la and Ib, joined by a bend 5 at 180 °.
- some ducts in particular the two ducts 2c, 2d, the farthest from the elbow, therefore the air inlet (that is to say in the direction of the air flow in the distributor), present at their branches 4c and 4d, a boss 6 shrinking their section on the side of the air inlet.
- the purpose of this hump is to divert the air towards the rear of the duct, at its branch, to generate an aerodynamic movement of "swirl" type, along it.
- FIG. 2 it can be seen that the hump 6 forms a springboard orienting the flow of air penetrating into the duct, towards the rear of the latter, with respect to the direction of the air flow in the distributor 1.
- Figure 2 also shows that the boss 6 is centered on the branching of the ducts.
- this section 6a may for example have a general shape of crescent in the cutting plane. It is desirable that the hump be centered on the branch of the duct, but its shape may be different, provided that satisfies the objective sought: divert the air towards the rear of the duct at its branch, to generate a aerodynamic movement type "swirl" along it.
- the motor concerned is a four-cylinder engine in line, and branches with a springboard hump are the last two in the direction of the air flow.
- these provisions are in no way obligatory.
- the invention is also applicable to any type of engine with a different number of cylinders.
- the bumps can be implanted only on the last cylinder, or generally, on a number of cylinders different from two.
- it is not imperative that all the bumps are identical. Without departing from the scope of the invention, they can have a different profile according to the branches, within the same distributor. Under these conditions, is concerned with the invention, any type of engine having at least one of its intake ducts, a boss narrowing the section of the duct at its branch on the intake manifold, on the side of the arrival of air.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0754378A FR2914695B1 (fr) | 2007-04-06 | 2007-04-06 | Dispositif d'admission d'air d'alimentation pour moteur a combustion interne |
| PCT/FR2008/050516 WO2008132406A2 (fr) | 2007-04-06 | 2008-03-25 | Dispositif d'admission d'air d'alimentation pour moteur a combustion interne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2132424A2 true EP2132424A2 (fr) | 2009-12-16 |
Family
ID=38669901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08788042A Withdrawn EP2132424A2 (fr) | 2007-04-06 | 2008-03-25 | Dispositif d'admission d'air d'alimentation pour moteur a combustion interne |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2132424A2 (fr) |
| FR (1) | FR2914695B1 (fr) |
| WO (1) | WO2008132406A2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2972491B1 (fr) * | 2011-03-10 | 2013-03-29 | Valeo Systemes Thermiques | Couvercle d'un boitier d'admission |
| JP5985315B2 (ja) * | 2012-03-26 | 2016-09-06 | 株式会社Roki | 通気ダクト |
| EP2711532B1 (fr) * | 2012-09-20 | 2016-05-25 | Caterpillar Energy Solutions GmbH | Moteur à combustion interne avec dispositif anti-retour de flamme |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3871807B2 (ja) * | 1998-06-09 | 2007-01-24 | ヤンマー株式会社 | 内燃機関の吸気マニホールド |
| JP4249919B2 (ja) * | 2001-08-31 | 2009-04-08 | 本田技研工業株式会社 | 吸気マニホールド |
| FR2852060B1 (fr) * | 2003-03-07 | 2005-05-06 | Renault Sa | Repartiteur d'admission d'air pour moteur a combustion interne. |
-
2007
- 2007-04-06 FR FR0754378A patent/FR2914695B1/fr not_active Expired - Fee Related
-
2008
- 2008-03-25 EP EP08788042A patent/EP2132424A2/fr not_active Withdrawn
- 2008-03-25 WO PCT/FR2008/050516 patent/WO2008132406A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008132406A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008132406A3 (fr) | 2009-02-12 |
| WO2008132406A2 (fr) | 2008-11-06 |
| FR2914695B1 (fr) | 2009-05-15 |
| FR2914695A1 (fr) | 2008-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20090916 |
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| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
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| 17Q | First examination report despatched |
Effective date: 20111130 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02B 31/04 20060101AFI20120918BHEP Ipc: F02M 35/104 20060101ALI20120918BHEP Ipc: F02M 35/10 20060101ALI20120918BHEP Ipc: F02M 35/112 20060101ALI20120918BHEP |
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| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20130313 |