EP1582736A1 - Safety guard for a fuel rail - Google Patents
Safety guard for a fuel rail Download PDFInfo
- Publication number
- EP1582736A1 EP1582736A1 EP05300244A EP05300244A EP1582736A1 EP 1582736 A1 EP1582736 A1 EP 1582736A1 EP 05300244 A EP05300244 A EP 05300244A EP 05300244 A EP05300244 A EP 05300244A EP 1582736 A1 EP1582736 A1 EP 1582736A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- columns
- protective device
- plate
- cylinder head
- 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
Links
Images
Classifications
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
-
- 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
Definitions
- the present invention relates to the protection of ramps fuel supply of internal combustion engine against shocks, in particular in case of frontal deformation of the engine block.
- the link flange of the intake manifold is made of plastic.
- a solution simple to ensure the protection of the feeding ramps of fuel, is to replace the plastic flange with a aluminum flange, so as to have a shim metal protection.
- the hold is rigid, it fully transmits shocks, without possibility damping by deformation.
- any rigid screen fixed on the motor independently of the intake manifold presents the same disadvantage of transmitting to it the essence of the shock received.
- such a screen is generally difficult to implement in the engine compartment, for reasons of space.
- the present invention aims to ensure in better conditions, the protection of a fuel supply ramp in the event of a frontal impact of the vehicle.
- a protection device composed of a deformable assembly by crushing fixed on the cylinder head, and a reinforcement stand fixed on the one hand on this set, and secondly on the cylinder block.
- this device comprises at least one pillar crashing gradually in case of shock and oriented in the direction of the splitter fixing screws intake on the cylinder head.
- the proposed protective device is indeed composed a deformable assembly by crushing fixed on the cylinder head 7, and the reinforcement stand 4, fixed on the one hand on this together, and secondly on the cylinder block 8.
- the deformable assembly is constituted by sheet 1 and by 2.
- the plate 1 is screwed preferably on the cylinder head 7 by the screws 5, and the stand 4 is screwed preferably on the cylinder block 8 and on the plate 1, by the screws 6.
- the columns 2, here four in number, are reported on the sheet 1, preferably by welding. Their function is to crash gradually in case of shock. They are oriented in the direction of the fixing screws 10 of the intake distributor 9 on the cylinder head 7.
- the plate 1 is arranged in front of the ramp 11, so as to be protected by the whole of the device in the event of a frontal impact.
- the rigidity of the columns 2 is reinforced by the reinforcements 4, screwed both on each pillar 2, and on the 1.
- the reinforcements 4 screwed both on each pillar 2, and on the 1.
- the protective device proposed by the invention which "encapsulates" the feed ramp of fuel on the intake side of the engine, allows the protection of this ramp during a frontal deformation of the engine compartment, by progressive crushing of columns. This crash is controlled by the choice of optimal dimensions for the balusters, which can be carried out through recommendation calculations.
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 Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
La présente invention concerne la protection des rampes d'alimentation de carburant de moteur à combustion interne contre les chocs, notamment en cas de déformation frontale du bloc moteur.The present invention relates to the protection of ramps fuel supply of internal combustion engine against shocks, in particular in case of frontal deformation of the engine block.
Sur de nombreux moteurs, la bride de liaison du répartiteur d'admission est en matière plastique. Une solution simple pour assurer la protection des rampes d'alimentation de carburant, consiste à remplacer la bride en plastique par une bride en aluminium, de manière à disposer d'une cale de protection métallique. Toutefois, si la cale est rigide, elle transmet intégralement les chocs, sans possibilité d'amortissement par déformation.On many engines, the link flange of the intake manifold is made of plastic. A solution simple to ensure the protection of the feeding ramps of fuel, is to replace the plastic flange with a aluminum flange, so as to have a shim metal protection. However, if the hold is rigid, it fully transmits shocks, without possibility damping by deformation.
Dans les mêmes conditions, tout écran rigide fixé sur le moteur indépendamment de la rampe d'admission, présente le même inconvénient de transmettre à celle-ci l'essentiel du choc reçu. De plus, un tel écran est généralement difficile à implanter dans le compartiment moteur, pour des raisons d'encombrement.Under the same conditions, any rigid screen fixed on the motor independently of the intake manifold, presents the same disadvantage of transmitting to it the essence of the shock received. In addition, such a screen is generally difficult to implement in the engine compartment, for reasons of space.
Dans la mesure où les rampes d'alimentation sont habituellement en matière plastique, et où les risques de déclenchement d'incendie en cas de rupture sont réels, les systèmes de protection qui ne sont pas capables d'amortir les chocs, ne sont pas satisfaisants.As far as the feeding ramps are concerned usually made of plastic, and where the risks of In the event of rupture, fire protection systems that are not capable of amortizing the shocks, are not satisfactory.
La présente invention vise à assurer dans de meilleures conditions, la protection d'une rampe d'alimentation de carburant en cas de choc frontal du véhicule. The present invention aims to ensure in better conditions, the protection of a fuel supply ramp in the event of a frontal impact of the vehicle.
Dans ce but, elle propose un dispositif de protection composé d'un ensemble déformable par écrasement fixé sur la culasse, et d'une béquille de renforcement fixée d'une part sur cet ensemble, et d'autre part sur le carter cylindre.For this purpose, it proposes a protection device composed of a deformable assembly by crushing fixed on the cylinder head, and a reinforcement stand fixed on the one hand on this set, and secondly on the cylinder block.
De préférence, ce dispositif comprend au moins une colonnette s'écrasant progressivement en cas de choc et orientée dans la direction des vis de fixation du répartiteur d'admission sur la culasse.Preferably, this device comprises at least one pillar crashing gradually in case of shock and oriented in the direction of the splitter fixing screws intake on the cylinder head.
D'autres caractéristiques et avantages de l'invention ressortiront clairement à la lecture de la description suivante d'un mode de réalisation non limitatif de celle-ci, en se reportant aux dessins annexés, sur lesquels :
- la figure 1 est une vue d'ensemble du moteur équipé du protecteur,
- la figure 2 est une vue du côté du dispositif proposé, et
- la figure 3 est une vue de dessus du même dispositif
- FIG. 1 is an overall view of the motor equipped with the protector,
- FIG. 2 is a side view of the proposed device, and
- FIG. 3 is a view from above of the same device
Sur les figures, on voit le corps du dispositif de
protection proposé, constitué d'une tôle de protection 1, de
colonnettes 2 et d'une béquille 4. La tôle 1 est reliée aux
colonnettes par des renforts 3, apparaissant sur les figures 1 et
2, qui montrent également la béquille 4 et l'emplacement de ces
différents éléments par rapport à la culasse 7, au carter-cylindre
8, au répartiteur d'admission 9, et à la rampe
d'alimentation en carburant 11.In the figures, we see the body of the device
proposed protection consisting of a
Le dispositif de protection proposé se compose en effet
d'un ensemble déformable par écrasement fixé sur la culasse 7,
et de la béquille de renforcement 4, fixée d'une part sur cet
ensemble, et d'autre part sur le carter cylindre 8.The proposed protective device is indeed composed
a deformable assembly by crushing fixed on the cylinder head 7,
and the reinforcement stand 4, fixed on the one hand on this
together, and secondly on the
L'ensemble déformable est constitué par la tôle 1 et par
des colonnettes 2. La tôle 1 est vissée de préférence sur la
culasse 7 par les vis 5, et la béquille 4 est vissée de préférence
sur le carter cylindre 8 et sur la tôle 1, par les vis 6. Les
colonnettes 2, ici au nombre de quatre, sont rapportées sur la
tôle 1, de préférence par soudage. Leur fonction est de s'écraser
progressivement en cas de choc. Elles sont orientées dans la
direction des vis de fixation 10 du répartiteur d'admission 9 sur
la culasse 7. La tôle 1 est disposée en avant de la rampe
d'alimentation 11, de manière à être protégée par l'ensemble du
dispositif en cas de choc frontal.The deformable assembly is constituted by sheet 1 and by
2. The plate 1 is screwed preferably on the
cylinder head 7 by the screws 5, and the stand 4 is screwed preferably
on the
La rigidité des colonnettes 2 est renforcée par les
renforts 4, vissés à la fois sur chaque colonnette 2, et sur la
tôle 1. Sur les figures, on compte trois vis de fixation 5 de la
tôle 1 sur la culasse 7, mais ce nombre n'est pas limitatif.The rigidity of the
Enfin, un léger jeu doit être prévu au montage, entre
l'extrémité des colonnettes 2 et les têtes de vis de fixation 10
du répartiteur 9, pour éviter que le dispositif soit
hyperstatique.Finally, a slight game must be provided for editing, between
the end of the
En conclusion, le dispositif de protection proposé par l'invention, qui « encapsule » la rampe d'alimentation de carburant sur la face d'admission du moteur, permet la protection de cette rampe lors d'une déformation frontale du compartiment moteur, par écrasement progressif des colonnettes. Cet écrasement est maítrisé par le choix de dimensions optimales pour les colonnettes, qui peut être effectué grâce à des calculs de préconisation.In conclusion, the protective device proposed by the invention, which "encapsulates" the feed ramp of fuel on the intake side of the engine, allows the protection of this ramp during a frontal deformation of the engine compartment, by progressive crushing of columns. This crash is controlled by the choice of optimal dimensions for the balusters, which can be carried out through recommendation calculations.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05300244T PL1582736T3 (en) | 2004-04-02 | 2005-04-01 | Safety guard for a fuel rail |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0450651A FR2868474B1 (en) | 2004-04-02 | 2004-04-02 | FUEL SUPPLY RAMP PROTECTION DEVICE |
FR0450651 | 2004-04-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1582736A1 true EP1582736A1 (en) | 2005-10-05 |
EP1582736B1 EP1582736B1 (en) | 2008-08-20 |
Family
ID=34878506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05300244A Not-in-force EP1582736B1 (en) | 2004-04-02 | 2005-04-01 | Safety guard for a fuel rail |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1582736B1 (en) |
AT (1) | ATE405742T1 (en) |
DE (1) | DE602005009058D1 (en) |
FR (1) | FR2868474B1 (en) |
PL (1) | PL1582736T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2912472A1 (en) * | 2007-02-12 | 2008-08-15 | Renault Sas | Internal combustion engine i.e. oil engine, fitting for supporting air conditioning compressor, has protection unit for protecting part of manifold against shocks, extending along manifold, and provided at reduced distance from manifold |
FR3073568A1 (en) * | 2017-11-14 | 2019-05-17 | Psa Automobiles Sa | ADMISSION DISTRIBUTOR PROVIDED WITH AN IMPACT DEVICE |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8844500B2 (en) | 2011-01-22 | 2014-09-30 | Cummins Intellectual Property, Inc. | Enclosure for high pressure fuel rail |
US10220700B2 (en) | 2015-02-09 | 2019-03-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Protection and support for vehicle engine components |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5168856A (en) * | 1992-01-10 | 1992-12-08 | Siemens Automotive L.P. | Plastic fuel rail having integral guard wall for protecting an integral nipple or hose barb |
EP1304473A2 (en) * | 2001-10-19 | 2003-04-23 | Nissan Motor Company, Limited | Intake arrangement for multi-cylinder engine |
-
2004
- 2004-04-02 FR FR0450651A patent/FR2868474B1/en not_active Expired - Fee Related
-
2005
- 2005-04-01 EP EP05300244A patent/EP1582736B1/en not_active Not-in-force
- 2005-04-01 PL PL05300244T patent/PL1582736T3/en unknown
- 2005-04-01 AT AT05300244T patent/ATE405742T1/en not_active IP Right Cessation
- 2005-04-01 DE DE602005009058T patent/DE602005009058D1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5168856A (en) * | 1992-01-10 | 1992-12-08 | Siemens Automotive L.P. | Plastic fuel rail having integral guard wall for protecting an integral nipple or hose barb |
EP1304473A2 (en) * | 2001-10-19 | 2003-04-23 | Nissan Motor Company, Limited | Intake arrangement for multi-cylinder engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2912472A1 (en) * | 2007-02-12 | 2008-08-15 | Renault Sas | Internal combustion engine i.e. oil engine, fitting for supporting air conditioning compressor, has protection unit for protecting part of manifold against shocks, extending along manifold, and provided at reduced distance from manifold |
FR3073568A1 (en) * | 2017-11-14 | 2019-05-17 | Psa Automobiles Sa | ADMISSION DISTRIBUTOR PROVIDED WITH AN IMPACT DEVICE |
Also Published As
Publication number | Publication date |
---|---|
PL1582736T3 (en) | 2009-05-29 |
EP1582736B1 (en) | 2008-08-20 |
DE602005009058D1 (en) | 2008-10-02 |
FR2868474B1 (en) | 2006-05-26 |
FR2868474A1 (en) | 2005-10-07 |
ATE405742T1 (en) | 2008-09-15 |
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