EP1529935B1 - Jet for piston cooling with reduced inter-axle - Google Patents
Jet for piston cooling with reduced inter-axle Download PDFInfo
- Publication number
- EP1529935B1 EP1529935B1 EP04356176A EP04356176A EP1529935B1 EP 1529935 B1 EP1529935 B1 EP 1529935B1 EP 04356176 A EP04356176 A EP 04356176A EP 04356176 A EP04356176 A EP 04356176A EP 1529935 B1 EP1529935 B1 EP 1529935B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle body
- nozzle
- peripheral wall
- axis
- transverse
- 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.)
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- 238000001816 cooling Methods 0.000 title claims description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 23
- 239000012809 cooling fluid Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 abstract description 5
- 208000031968 Cadaver Diseases 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
Definitions
- the present invention relates to the piston cooling nozzles for an internal combustion engine, used to project a cooling fluid such as oil against the piston bottom, that is to say against the piston face external to the piston. explosion chamber.
- the piston cooling nozzles usually used are inserts attached to the crankcase and communicating with a coolant supply port.
- the position of the nozzle must be accurately determined to accurately determine the impact of the coolant jet on the piston bottom.
- Piston cooling nozzles for an internal combustion engine comprising a generally cylindrical peripheral wall nozzle body surrounding an axial bore containing a valve means.
- the peripheral wall is traversed by a transverse bore communicating with the axial bore and connected to a tube of cooling fluid outlet conduit.
- the nozzle body has a cylindrical portion shaped for its introduction into a fluid supply port of the engine cylinder housing.
- a first solution consists in providing a nozzle having a coaxial screw-valve which is screwed into a threaded end portion of the fluid supply pipe. An attached transverse plate blocks the nozzle in rotation.
- a second solution usually used for fixing the nozzle on the engine cylinder housing consists in providing a transverse fixing plate, having a first hole in which is fixed the nozzle body, and having a second hole offset laterally opposite the transverse bore, for the passage of a screw fixing the nozzle on the engine cylinder housing.
- This second solution is simpler to implement, but it has the disadvantage of a sometimes excessive congestion.
- the peripheral wall of the nozzle body must be sufficiently thick for the axial bore to effectively retain the coolant outlet conduit.
- the mounting screw must be of sufficient diameter to ensure sufficient clamping of the mounting plate on the engine cylinder housing, avoiding any risk of detachment or vibration.
- the problem proposed by the present invention is thus to design a new piston cooling nozzle structure, the fixing of which is carried out by a transverse fixing plate, the size of the transverse fixing plate is reduced, and whose between the axis of the fixing screw and the axis of the nozzle body is also reduced.
- the aim is to make it possible to adapt such nozzles in engines having a reduced space for fixing the cooling nozzle.
- the object of the invention is, simultaneously, to ensure correct operation and reliability of the piston cooling nozzle, and in particular a correct retention of the cooling fluid outlet duct and of the entire nozzle itself.
- the external recess in the diametrically opposite portion of the peripheral wall makes it possible to bring the axis of the nozzle body closer to the axis of the fixing screw, while allowing the operation of the fastening screw by a clamping tool such as than a robot arm end.
- Another advantage is that the outer recess provides relief of the piston cooling nozzle, which is favorable in the current search for engine performance.
- the inter-axis of the first and second holes of the transverse fixing plate is just sufficient to allow the engagement and rotation of a screwing tool on the fixing screw head without contact with the peripheral wall of the jet body.
- the external recess is a flat parallel to the axis of the nozzle body.
- the external recess is a concave cylindrical surface with an axis parallel to the axis of the nozzle body and coaxial with the axis of the fixing screw.
- This latter embodiment is particularly suitable for a screwing system in which the screwing tool is the end of a robot arm with cylindrical outer contour of revolution and inner contour adapted to grip the screw head.
- the nozzle comprises a nozzle body 1 with a wall generally cylindrical peripheral axis II and surrounding an axial bore 2 containing a valve means 3.
- the valve means 3 comprises a fixing screw 3a whose axial rod 3b guides a compression spring 3c which pushes a closure ball 3d against a seat 3e of the nozzle body 1.
- the ball 3d can close the axial bore 2 as the cooling fluid pressure at the inlet 2a of the axial bore 2 does not exceed a determined threshold corresponding to the thrust force of the spring 3b.
- the peripheral wall 1a of the nozzle body 1 is traversed by a transverse bore 4 communicating with the axial bore 2 and connected to a cooling fluid outlet duct 5.
- the nozzle body 1 comprises a cylindrical input portion 1b, coaxial axis I-I, shaped for its introduction into a fluid supply port of the engine cylinder housing.
- a transverse fixing plate 6 is associated with the nozzle body 1 to ensure its attachment to the engine cylinder housing.
- the transverse fixing plate 6 comprises a first hole 6a in which is fixed the nozzle body 1, by welding or fitting, and comprises a second hole 6b offset laterally opposite the transverse bore 4, for the passage of a fixing screw 7 of the nozzle on the engine cylinder casing.
- the inter-axis E1 between the axis II of the nozzle body 1 and the axis II-II of the fixing screw 7 must be sufficient to allow a radial clearance between the nozzle body 1 and a screwing tool that is just engaged on the head of the fastening screw 7. This is the reason why the inter-axis E1 must be wide, which makes it necessary to dimension the plate 6 accordingly.
- the peripheral wall 1 has a thickness T which is greater than or equal to the diameter D of the transverse bore 4.
- the cooling fluid outlet duct 5 may be an attached tube, force-fitted by its end in the transverse bore 4, which is sufficient to ensure effective maintenance of the fluid outlet conduit 5.
- the peripheral wall 1a is thinner due to the presence of an external recess 1d with respect to the second hole 6b of the transverse fixing plate 6.
- a thickness of the portion 1c of peripheral wall is kept just sufficient for the mechanical stresses to be borne, and the external recess 1d makes it possible to bring the II-II axis of the fixing screw 7.
- the inter-axis E2 of the first hole 6a and second hole 6b of the transverse fixing plate 6, or between-axis between the nozzle body 1 and the fixing screw 7, is just sufficient to allow the engagement and the rotation of a screwing tool 8 on the head of the fixing screw 7 without contact with the peripheral wall 1a of the nozzle body 1.
- a functional clearance is left between the screwing tool 8 and the nozzle body 1 which facilitates the movement of the screwing tool 8 during its adaptation and removal relative to the fixing screw 7.
- the external recess 1d is a concave cylindrical surface of axis parallel to the axis II of the nozzle body 1 and coaxial with the axis II-II of the fixing screw 7.
- the screwing tool 8 as illustrated is the end of a robot arm with a cylindrical outer contour of revolution and an inner contour adapted to grip the screw head 7.
- the outer recess 1d is a flat parallel to the axis II of the nozzle body 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Fuel-Injection Apparatus (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
La présente invention concerne les gicleurs de refroidissement de piston pour moteur à combustion interne, utilisés pour projeter un fluide de refroidissement tel que de l'huile contre le fond de piston, c'est-à-dire contre la face de piston extérieure à la chambre d'explosion.The present invention relates to the piston cooling nozzles for an internal combustion engine, used to project a cooling fluid such as oil against the piston bottom, that is to say against the piston face external to the piston. explosion chamber.
Les gicleurs de refroidissement de piston habituellement utilisés sont des pièces rapportées fixées sur le carter moteur et communiquant avec un orifice d'amenée de fluide de refroidissement. La position du gicleur doit être déterminée avec précision, pour déterminer de façon précise l'impact du jet de fluide de refroidissement sur le fond de piston.The piston cooling nozzles usually used are inserts attached to the crankcase and communicating with a coolant supply port. The position of the nozzle must be accurately determined to accurately determine the impact of the coolant jet on the piston bottom.
On connaît déjà des gicleurs de refroidissement de piston pour moteur à combustion interne comprenant un corps de gicleur à paroi périphérique généralement cylindrique entourant un perçage axial contenant un moyen de clapet. La paroi périphérique est traversée d'un perçage transversal communiquant avec le perçage axial et raccordé à un conduit de sortie de fluide de refroidissement sous forme de tube. Le corps de gicleur comporte une portion cylindrique conformée pour son introduction dans un orifice d'amenée de fluide du carter de cylindre moteur.Piston cooling nozzles for an internal combustion engine are already known comprising a generally cylindrical peripheral wall nozzle body surrounding an axial bore containing a valve means. The peripheral wall is traversed by a transverse bore communicating with the axial bore and connected to a tube of cooling fluid outlet conduit. The nozzle body has a cylindrical portion shaped for its introduction into a fluid supply port of the engine cylinder housing.
Pour fixer le gicleur au carter de cylindre moteur, une première solution, décrite dans le document
Une seconde solution habituellement utilisée pour la fixation du gicleur sur le carter de cylindre moteur, décrite dans les documents
Cette seconde solution est plus simple à mettre en oeuvre, mais elle présente l'inconvénient d'un encombrement parfois excessif.This second solution is simpler to implement, but it has the disadvantage of a sometimes excessive congestion.
La paroi périphérique du corps de gicleur doit être suffisamment épaisse pour que le perçage axial retienne efficacement le conduit de sortie de fluide de refroidissement.The peripheral wall of the nozzle body must be sufficiently thick for the axial bore to effectively retain the coolant outlet conduit.
La vis de fixation doit avoir un diamètre suffisant pour assurer un serrage suffisant de la plaque de fixation sur le carter de cylindre moteur, évitant tout risque de détachement ou de vibration.The mounting screw must be of sufficient diameter to ensure sufficient clamping of the mounting plate on the engine cylinder housing, avoiding any risk of detachment or vibration.
Ces deux contraintes obligent à conserver un entre-axe relativement large entre l'axe du corps de gicleur et l'axe de la vis de fixation. Cela conduit à des grandes tailles de plaque transversale de fixation.These two constraints make it necessary to maintain a relatively wide distance between the axis of the nozzle body and the axis of the fastening screw. This leads to large sizes of transverse attachment plate.
Or un besoin existe pour réduire la taille de la plaque transversale de fixation et l'encombrement global du gicleur de refroidissement de piston, afin notamment de permettre leur utilisation dans des moteurs et qui laissent une place réduite pour le positionnement du gicleur de refroidissement de piston.However, there is a need to reduce the size of the transverse fixing plate and the overall size of the piston cooling nozzle, in particular to allow their use in motors and which leave a reduced space for the positioning of the piston cooling nozzle .
Le problème proposé par la présente invention est ainsi de concevoir une nouvelle structure de gicleur de refroidissement de piston, dont la fixation s'effectue par une plaque transversale de fixation, dont la taille de la plaque transversale de fixation est réduite, et dont l'entre-axe entre l'axe de la vis de fixation et l'axe du corps de gicleur est également réduit.The problem proposed by the present invention is thus to design a new piston cooling nozzle structure, the fixing of which is carried out by a transverse fixing plate, the size of the transverse fixing plate is reduced, and whose between the axis of the fixing screw and the axis of the nozzle body is also reduced.
Le but est de permettre d'adapter de tels gicleurs dans des moteurs présentant une place réduite pour la fixation du gicleur de refroidissement.The aim is to make it possible to adapt such nozzles in engines having a reduced space for fixing the cooling nozzle.
L'invention vise, simultanément, à assurer un fonctionnement et une fiabilité corrects du gicleur de refroidissement de piston, et notamment un maintien correct du conduit de sortie de fluide de refroidissement et de l'ensemble du gicleur lui-même.The object of the invention is, simultaneously, to ensure correct operation and reliability of the piston cooling nozzle, and in particular a correct retention of the cooling fluid outlet duct and of the entire nozzle itself.
Pour atteindre ces buts ainsi que d'autres, l'invention propose un gicleur de refroidissement de piston pour moteur à combustion interne, comprenant :
- un corps de gicleur à paroi périphérique entourant un perçage axial contenant un moyen de clapet, la paroi périphérique étant traversée d'un perçage transversal communiquant avec le perçage axial et raccordé à un conduit de sortie de fluide de refroidissement, le corps de gicleur comportant une portion cylindrique d'entrée conformée pour son introduction dans un orifice d'amenée de fluide du carter de cylindre moteur,
- une plaque transversale de fixation, comportant un premier trou dans lequel est fixé le corps de gicleur, et comportant un second trou décalé latéralement à l'opposé du perçage transversal, pour le passage d'une vis de fixation du gicleur sur le carter de cylindre moteur ;
- au moins autour du perçage transversal, la paroi périphérique est épaisse, son épaisseur T étant supérieure ou égale au diamètre du perçage transversal,
- dans sa portion diamétralement opposée au perçage transversal, la paroi périphérique est plus mince du fait de la présence d'un évidement externe en regard du second trou de la plaque transversale de fixation.
- a circumferential nozzle body surrounding an axial bore containing a valve means, the peripheral wall having a transverse bore therethrough communicating with the axial bore and connected to a coolant outlet conduit, the nozzle body having a cylindrical input portion shaped for its introduction into a fluid supply port of the engine cylinder housing,
- a transverse fixing plate, comprising a first hole in which is fixed the nozzle body, and having a second hole offset laterally opposite the transverse bore, for the passage of a nozzle fixing screw on the cylinder housing; engine;
- at least around the transverse bore, the peripheral wall is thick, its thickness T being greater than or equal to the diameter of the transverse bore,
- in its portion diametrically opposed to the transverse bore, the peripheral wall is thinner due to the presence of an external recess facing the second hole of the transverse fixing plate.
Grâce à l'épaisseur suffisante de la paroi périphérique, dans la zone retenant le conduit de sortie de fluide, le maintien du conduit est efficace et satisfaisant.Due to the sufficient thickness of the peripheral wall, in the zone retaining the fluid outlet duct, maintaining the duct is effective and satisfactory.
Simultanément, l'évidement externe dans la portion diamétralement opposée de paroi périphérique permet de rapprocher l'axe du corps de gicleur et l'axe de la vis de fixation, tout en permettant la manoeuvre de la vis de fixation par un outil de serrage tel qu'une extrémité de bras de robot.Simultaneously, the external recess in the diametrically opposite portion of the peripheral wall makes it possible to bring the axis of the nozzle body closer to the axis of the fixing screw, while allowing the operation of the fastening screw by a clamping tool such as than a robot arm end.
Un autre avantage est que l'évidement externe réalise un allégement du gicleur de refroidissement de piston, ce qui est favorable dans la recherche actuelle des performances des moteurs.Another advantage is that the outer recess provides relief of the piston cooling nozzle, which is favorable in the current search for engine performance.
De préférence, l'entre-axe des premier et second trous de la plaque transversale de fixation est juste suffisant pour permettre l'engagement et la rotation d'un outil de vissage sur la tête de vis de fixation sans contact avec la paroi périphérique du corps de gicleur.Preferably, the inter-axis of the first and second holes of the transverse fixing plate is just sufficient to allow the engagement and rotation of a screwing tool on the fixing screw head without contact with the peripheral wall of the jet body.
Selon un premier mode de réalisation, l'évidement externe est un méplat parallèle à l'axe du corps de gicleur.According to a first embodiment, the external recess is a flat parallel to the axis of the nozzle body.
Selon un autre mode de réalisation, l'évidement externe est une surface cylindrique concave d'axe parallèle à l'axe du corps de gicleur et coaxiale à l'axe de la vis de fixation. Ce dernier mode de réalisation est particulièrement adapté à un système de vissage dans lequel l'outil de vissage est l'extrémité d'un bras de robot à contour externe cylindrique de révolution et à contour intérieur adapté pour la prise de la tête de vis.According to another embodiment, the external recess is a concave cylindrical surface with an axis parallel to the axis of the nozzle body and coaxial with the axis of the fixing screw. This latter embodiment is particularly suitable for a screwing system in which the screwing tool is the end of a robot arm with cylindrical outer contour of revolution and inner contour adapted to grip the screw head.
D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures jointes, parmi lesquelles :
- la
figure 1 illustre, en perspective, une structure de gicleur de refroidissement de piston selon l'art antérieur, avec un entre-axe relativement important entre le corps de piston et la vis de fixation ; - la
figure 2 est une vue en perspective illustrant un gicleur de refroidissement de piston selon un premier mode de réalisation de l'invention, associé à la tête de serrage d'un bras de robot ; - la
figure 3 illustre en perspective un gicleur de refroidissement de piston selon un second mode de réalisation de l'invention ; et - la
figure 4 est une coupe longitudinale du gicleur de lafigure 3 .
- the
figure 1 illustrates, in perspective, a piston cooling nozzle structure according to the prior art, with a relatively large between-axis between the piston body and the fixing screw; - the
figure 2 is a perspective view illustrating a piston cooling nozzle according to a first embodiment of the invention, associated with the clamping head of a robot arm; - the
figure 3 illustrates in perspective a piston cooling nozzle according to a second embodiment of the invention; and - the
figure 4 is a longitudinal section of the nozzle of thefigure 3 .
Dans les deux modes de réalisation des
Par exemple, comme illustré sur la
La paroi périphérique 1a du corps de gicleur 1 est traversée d'un perçage transversal 4 communiquant avec le perçage axial 2 et raccordé à un conduit de sortie de fluide de refroidissement 5.The peripheral wall 1a of the
Le corps de gicleur 1 comporte une portion cylindrique d'entrée 1b, coaxiale d'axe I-I, conformée pour son introduction dans un orifice d'amenée de fluide du carter de cylindre moteur.The
Une plaque transversale de fixation 6 est associée au corps de gicleur 1 pour assurer sa fixation sur le carter de cylindre moteur. Pour cela, la plaque transversale de fixation 6 comporte un premier trou 6a dans lequel est fixé le corps de gicleur 1, par soudure ou emmanchement, et comporte un second trou 6b décalé latéralement à l'opposé du perçage transversal 4, pour le passage d'une vis de fixation 7 du gicleur sur le carter de cylindre moteur.A
Comme on le voit sur la
En considérant maintenant les
Ainsi, sur la
Simultanément, dans la portion diamétralement opposée de la paroi périphérique 1a, c'est-à-dire dans la portion 1c opposée au perçage transversal 4, la paroi périphérique est plus mince du fait de la présence d'un évidement externe 1d au regard du second trou 6b de la plaque transversale de fixation 6. Dans cette zone, on conserve une épaisseur de la portion 1c de paroi périphérique juste suffisante pour les contraintes mécaniques à supporter, et l'évidement externe 1d permet de rapprocher l'axe II-II de la vis de fixation 7.Simultaneously, in the diametrically opposite portion of the peripheral wall 1a, that is to say in the
Comme illustré sur la
Dans le mode de réalisation des
L'outil de vissage 8 tel qu'illustré est l'extrémité d'un bras de robot à contour externe cylindrique de révolution et à contour intérieur adapté pour la prise de la tête de vis 7.The
Dans le mode de réalisation illustré sur la
La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof within the scope of the claims below.
Claims (5)
- Internal combustion engine piston cooling nozzle comprising :- a nozzle body (1) with a peripheral wall (1a) around an axial bore (2) containing valve means (3), a transverse bore (4) communicating with the axial bore (2) passing through the peripheral wall (1 a) and being connected to a cooling fluid outlet duct (5), the nozzle body (1) having a cylindrical inlet portion (1b) conformed to be inserted into a fluid feed orifice of an engine cylinder block,- a transverse fixing plate (6) having a first hole (6a) into which the nozzle body (1) is fixed, and having a laterally offset second hole (6b) opposite the transverse bore (4) for a screw (7) for fixing the nozzle to the engine cylinder block to pass through, characterized in that :- at least around the transverse bore (4), the peripheral wall (1a) is thick, its thickness T being greater than or equal to the diameter (D) of the transverse bore (4),- the peripheral wall (1a) has a thinner portion (1c) diametrally opposite the transverse bore (4) because of the presence of an external recess (1d) facing the second hole (6b) in the transverse fixing plate (6).
- Piston cooling nozzle according to claim 1, characterized in that the distance between axes (E2) of the first and second holes (6a, 6b) of the transverse fixing plate (6) is just sufficient to enable the engagement of a screwing tool (8) over a head of the fixing screw (7) and rotation thereof without coming into contact with the peripheral wall (1a) of the nozzle body (1).
- Piston cooling nozzle according to claim 2, characterized in that the screwing tool (8) is an end of a robot arm with a circular cylindrical external contour and an internal contour adapted to grasp the head of the screw (7).
- Piston cooling nozzle according to any of claims 1 to 3, characterized in that the external recess (1 d) is a flat parallel to an axis (I-I) of the nozzle body (1).
- Piston cooling nozzle according to any of claims 1 to 3, characterized in that the external recess (1d) is a concave cylindrical surface having an axis parallel to an axis (I-I) of the nozzle body (1) and coaxial with an axis (II-II) of the fixing screw (7).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0313248A FR2861804B1 (en) | 2003-11-04 | 2003-11-04 | PISTON COOLING JET WITH REDUCED AXIS |
FR0313248 | 2003-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1529935A1 EP1529935A1 (en) | 2005-05-11 |
EP1529935B1 true EP1529935B1 (en) | 2011-06-01 |
Family
ID=34429976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04356176A Active EP1529935B1 (en) | 2003-11-04 | 2004-11-03 | Jet for piston cooling with reduced inter-axle |
Country Status (7)
Country | Link |
---|---|
US (1) | US7104225B2 (en) |
EP (1) | EP1529935B1 (en) |
CN (1) | CN1287072C (en) |
AT (1) | ATE511599T1 (en) |
AU (1) | AU2004226948B2 (en) |
BR (1) | BRPI0404650A (en) |
FR (1) | FR2861804B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9074516B2 (en) | 2008-09-09 | 2015-07-07 | Bontaz Centre R&D | Device for controlling supply of a system with a fluid |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8397749B2 (en) * | 2007-09-07 | 2013-03-19 | Metaldyne Company Llc | Piston cooling jet with tracking ball orifice |
CN101886570B (en) * | 2010-06-02 | 2012-02-29 | 奇瑞汽车股份有限公司 | Piston cooling spray nozzle structure |
FR3004489B1 (en) | 2013-04-11 | 2017-04-28 | Bontaz Centre R & D | COOLING DEVICE FOR A REDUCED INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURING SUCH A DEVICE |
CN104533588A (en) * | 2014-12-26 | 2015-04-22 | 山东华源莱动内燃机有限公司 | Piston cooling nozzle |
GB201519640D0 (en) * | 2015-11-06 | 2015-12-23 | Gm Global Tech Operations Inc | Piston cooling jet for an internal combustion engine |
FR3109608B1 (en) * | 2020-04-22 | 2023-01-13 | Bontaz Centre R & D | DOUBLE JET PISTON COOLING JET IN PLASTIC MATERIAL |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938431A1 (en) * | 1979-09-22 | 1981-03-26 | Daimler-Benz Aktiengesellschaft, 70567 Stuttgart | Supercharged fuel injection IC engine - has pistons cooled by oil injector fixed to flange of crankshaft |
US4995346A (en) * | 1989-06-28 | 1991-02-26 | Sharon Manufacturing Company | Oil jet piston cooler |
FR2719868B1 (en) * | 1994-05-10 | 1996-06-21 | Bontaz Centre | Piston cooling nozzle for internal combustion engine. |
-
2003
- 2003-11-04 FR FR0313248A patent/FR2861804B1/en not_active Expired - Fee Related
-
2004
- 2004-10-29 BR BR0404650-1A patent/BRPI0404650A/en not_active IP Right Cessation
- 2004-11-02 CN CN200410086861.2A patent/CN1287072C/en active Active
- 2004-11-03 AT AT04356176T patent/ATE511599T1/en not_active IP Right Cessation
- 2004-11-03 US US10/980,500 patent/US7104225B2/en active Active
- 2004-11-03 EP EP04356176A patent/EP1529935B1/en active Active
- 2004-11-04 AU AU2004226948A patent/AU2004226948B2/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9074516B2 (en) | 2008-09-09 | 2015-07-07 | Bontaz Centre R&D | Device for controlling supply of a system with a fluid |
Also Published As
Publication number | Publication date |
---|---|
FR2861804A1 (en) | 2005-05-06 |
ATE511599T1 (en) | 2011-06-15 |
AU2004226948B2 (en) | 2007-05-10 |
FR2861804B1 (en) | 2006-01-20 |
US7104225B2 (en) | 2006-09-12 |
CN1614206A (en) | 2005-05-11 |
EP1529935A1 (en) | 2005-05-11 |
US20050098122A1 (en) | 2005-05-12 |
BRPI0404650A (en) | 2005-06-21 |
CN1287072C (en) | 2006-11-29 |
AU2004226948A1 (en) | 2005-05-19 |
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