EP3526461A1 - Deflecteur de liquide de refroidissement - Google Patents
Deflecteur de liquide de refroidissementInfo
- Publication number
- EP3526461A1 EP3526461A1 EP17777307.4A EP17777307A EP3526461A1 EP 3526461 A1 EP3526461 A1 EP 3526461A1 EP 17777307 A EP17777307 A EP 17777307A EP 3526461 A1 EP3526461 A1 EP 3526461A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deflector
- cylinder head
- baffle
- coolant
- edge
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
-
- 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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/021—Cooling cylinders
Definitions
- the present invention relates to a coolant deflector for an engine, which can in particular be used in a motor vehicle.
- FR2905423 B1 discloses an engine baffle. It is described as substantially elongate overall shape parallel to the cylinder axes of a housing. It is represented as a rectangular parallelepiped. This deflector directs a flow of cooling fluid in a given direction, while preventing the passage of fluid in the direction opposite to said given direction.
- the document FR2905423 B1 does not disclose how the deflector is mounted in the engine. In addition, this document does not disclose how the baffle holds in place under the pressure of the coolant.
- One of the aims of the invention is to provide an engine baffle which is easy to mount and remains in place under the effect of the pressure of the coolant.
- the baffle according to the invention also makes it possible to distribute the flow of cooling fluid in two different directions.
- the invention provides a coolant baffle of an engine comprising a baffle body for directing a flow of coolant, the baffle body extending in particular in a first direction and having a first end and a second end, the first end being substantially opposite the second end in the first direction,
- the deflector comprises a tenon fixed to the deflector body and extending beyond the second end of the deflector body in the first direction, and
- the deflector comprises a first resiliently deformable protruding portion in the first direction attached to the deflector body and extending beyond the first end of the deflector body in the first direction.
- the placement of the deflector is after placement of the cylinder head gasket on the cylinder block, by sliding the baffle in a cutout provided for this purpose in the cylinder head gasket.
- the cylinder head is then placed on the cylinder head gasket, thereby pushing the first projecting part of the baffle towards the crankcase. It bends slightly downward and drives the body of the baffle down, which helps to maintain the tenon in the mortise of the cylinder block.
- the placement of the deflector is made before placing the cylinder head gasket on the crankcase.
- the first projecting part of the deflector is then pushed down by the cylinder head gasket. It bends slightly downward causing the body of the baffle down, which helps maintain the tenon in the mortise of the cylinder block.
- the first protruding part of the deflector which is elastically deformable downwards, allows a piece located above the deflector to push it down and maintain in a vertical position despite the tolerances of the different parts and despite the possible movements of the different parts relative to each other.
- the pin of the deflector is thus particularly well locked in the mortise of the cylinder block by a vertical pressure and the deflector is particularly adapted to remain in place under the flow of coolant.
- the deflector body comprises a through hole in a second direction substantially perpendicular to the first direction.
- Said hole makes it possible to distribute the cooling fluid between two directions in order to cool elements of the crankcase such as the jackets surrounding the cylinders.
- the geometry and the dimensions of the hole also make it possible to adjust the flow rate of cooling fluid in each of the two directions.
- the first protruding part comprises a boss extending in the first direction on the first end of the deflector body
- the first projecting part comprises an elastomer skirt fixed on a part of a periphery of the first end of the deflector body;
- the first protruding portion further extends beyond a first edge of the first end of the deflector body in a second direction perpendicular to the first direction; and further comprising a second projecting portion extending beyond the first end of the deflector body in the first direction, resiliently deformable in the first direction, and further extending beyond a second edge the first end of the deflector body in the second direction, the second edge being substantially opposed to the first edge in the second direction;
- the first and second projecting portions each comprise a protuberance located on one side of the projecting portion opposite the deflector body;
- the first protruding portion is formed by a cut-away portion of the first end of the deflector body located on a first edge of the first end of the deflector body in a second direction perpendicular to the first direction; and further comprising a second elastically deformable projecting portion in the first direction and formed by a cut-away portion of the first end of the deflector body located on a second edge of the first end of the deflector body in the second direction, the second edge being essentially opposed to the first edge in the second direction;
- the invention further proposes a diesel engine in particular, comprising: • a coolant baffle,
- a cylinder block comprising a mortise arranged to receive the tenon of the deflector, the first protruding portion being intended to protrude above the cylinder block so as to be deformed by the introduction of the cylinder head or the cylinder head gasket .
- the cylinder head gasket comprises a seal cutout arranged to allow passage of the baffle body and receiving the first end of the baffle body and the first projecting portion, and the possible second portion in flange , protrudes from the cylinder head gasket so that it can be deformed (s) by placing a bolt on the cylinder head gasket.
- the deflector further comprises ribs extending substantially in the first direction and in that the cylinder block comprises grooves extending substantially in the first direction and arranged to receive the ribs of the baffle.
- FIG. 1 illustrates a deflector in a first embodiment of the invention
- FIG. 2a illustrates a deflector in a second embodiment of the invention
- FIG. 2b is a vertical section illustrating a part of a deflector in the second embodiment of the invention
- FIG. 3a illustrates a deflector in a third embodiment of the invention
- FIG. 3b is a vertical sectional view illustrating the action of a yoke on first and second parts projecting from a deflector according to the third embodiment of the invention, in a case where the cylinder head is placed on the baffle,
- FIG. 4a illustrates a deflector in a fourth embodiment of the invention
- FIG. 4b is a vertical section illustrating the action of a yoke on a first protruding part, in a case where the yoke is placed on the deflector and for a deflector according to the fourth embodiment of the invention,
- FIG. 5 illustrates a placement, according to a first placement method, of a deflector according to one embodiment of the invention.
- FIG. 6 illustrates a deflector according to one embodiment of the invention
- FIG. 7 illustrates a deflector made according to the teachings of the invention which is arranged in a crankcase and which distributes a cooling flow towards a water chamber, on the one hand, and upwards in the direction of a breech, on the other hand.
- a deflector 10 comprises a body 1 1 deflector extending mainly in a first direction 101 which is a vertical direction when the deflector 10 is in place in a motor arranged in the usual way, that is to say with a cylinder head gasket 40 located horizontally above a cylinder block 50 and a cylinder head 60 located above the cylinder head gasket 40 (see Figure 3b for example).
- the first direction 101 is substantially parallel to the axes of the cylinders 53 of the engine.
- the cylinder block 50 comprises at least one cylinder which is cooled by at least one chamber 51 of water formed in the casing 50.
- the deflector 10 is arranged in the chamber 51 of water so as to distribute the flow F1 of the coolant.
- said cylinder head comprises a cooling duct whose opening opposite the cylinder block is formed substantially in line with the water chamber 51 of the crankcase in which is arranged the deflector 10.
- the body 1 1 of the baffle is interposed between a flow inlet conduit F1 fluid cooling the chamber 51 of water.
- the body 1 1 of the deflector also extends in a second direction 102 and in a third direction 103. Its extension in the third direction 103 is preferentially less than in the first direction 101 and its extension in the second direction 102 is preferably less than in the third direction 103.
- the body 1 1 of the baffle preferably comprises a hole 12 passing substantially in the second direction 102. The hole 12 allows the circulation of cooling fluid from the inlet pipe 52 to the chamber 51 of water .
- the upper part of the body 1 1 of the baffle 10 forms a partition which separates a conduit 54 from a deflection portion F3 of the coolant flow to the cylinder head 60 and the chamber 51 of water.
- a first function of the deflector 10 is to direct a coolant flow to effectively cool the chamber walls 51 of the cylinder block 50.
- the deflector 10 is preferably arranged in the engine so that a first portion of the liquid of cooling is directed through the hole 12 substantially along the second direction 102. After passing through the hole 12, the cooling fluid is circulated around the crankcase for example in a direction substantially transverse to the second direction 102.
- the hole 12 has a section adapted to adjust the flow of cooling fluid to said chambers 51.
- a second function of the deflector 10 is to direct a second portion of the coolant liquid to the cylinder head 60, and more particularly to a cylinder head cooling duct inlet opening 62, as shown in Figures 3b and 4b.
- the body 1 1 of the deflector 10 has a geometry and dimensions adapted to direct the second portion of cooling fluid in the first direction 101 to the cylinder head 60.
- a second portion of cooling fluid arriving via the line 52 of arrival does not pass through the hole 12 but is deflected upward in the first direction 101.
- the body 1 1 of the deflector has a first end 20 in the first direction 101, which is its upper end when the deflector 10 is in place in a motor arranged in the usual way.
- the body 1 1 of the deflector has a second end 30, opposite the first end 20 in the first direction 101, and which is its lower end when the deflector 10 is in place in a motor arranged in the usual way.
- the deflector 10 comprises a pin 31 fixed to the body 1 1 deflector and extending beyond the second end 30 of the body 1 1 deflector in the first direction 101.
- the pin 31 extends projecting downwards from the body 1 1 of the baffle.
- the post 31 is placed in a vertical mortise of the cylinder block 50 provided to receive and block it in the second 102 and third 103 directions.
- the pin 31 preferably has a larger extension along the third direction 103 than in the second direction 102, so as to support the deflector 10 subjected to a F1 coolant flow directed in the second direction 102.
- the deflector 10 further comprises a first projecting portion 21 fixed to the deflector body 1 1 and extending at least beyond the first end 20 of the deflector body 1 1 in the first direction 101.
- the first projecting portion 21 extends at least upwards from the body 1 1 of the baffle.
- the first projecting portion 21 may further extend into the second 102 and / or the third direction 103.
- the first projecting portion 21 is elastically flexible to deform downwards, that is to say according to the first direction 101 towards the body 1 1 of the baffle, when the cylinder head 60 or the cylinder head gasket 40 is placed (e) on the baffle 10. This allows to elastically constrain the deflector 10 downwardly to ensure that the pin 31 be embedded in the mortise.
- Figure 1 illustrates a deflector 10 in a first embodiment of the invention.
- the first projecting portion 21 comprises a boss 29 extending in the first direction 101 on the first end 20 of the body 1 1 deflector, and the body 1 1 of the deflector preferably comprises a hole 13 in which the hump 29 can sink elastically when a downward pressure is exerted on it.
- FIG. 2b is a vertical section along the segment MB indicated in FIG. 2a.
- the first projecting portion 21 comprises a skirt 28 of elastomer extending in the first direction 101 on the first end 20 of the body 1 1 baffle.
- the skirt 28 extends in the second direction 102 above the first end 20 of the body 1 1 deflector.
- Figure 3a illustrates a deflector 10 in a third embodiment of the invention.
- Figure 3a shows a first 23 and a second 24 edges of the first end 20 of the body 1 1 deflector.
- the first 23 and second 24 edges are substantially parallel to the third direction 103.
- the first projecting portion 21 extends beyond the first edge 23 in the second direction 102.
- deflector 10 comprises a second projecting portion 22.
- the second projecting portion 22 extends beyond the first end 20 of the body 1 1 deflector in the first direction 101 and beyond the second edge 24 in the second direction 102 and in a direction opposite to the first projection 21.
- the first 21 and the second 22 protruding parts are preferably offset relative to each other in the second direction 102.
- the first 21 and the second 22 projecting portions each preferably comprise a protuberance 25 on their upper side, so as to promote contact with the cylinder head 60 or the cylinder head gasket 40 placed on the deflector 10.
- FIG. 3b illustrates the action of the bolt 40 on the first 21 and second 22 projecting parts, in a case where the bolt 60 is placed on the deflector 10.
- the placement of the bolt 60 (illustrated by an arrow 61) pushes elastically the first 21 and second 22 parts projecting downwards (movement illustrated by the arrows 210, 220). It is also possible, while remaining within the scope of the invention, that it is the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 parts projecting downwards.
- Figure 4a illustrates a deflector 10 in a fourth embodiment of the invention.
- Figure 4a shows a first 23 and a second 24 edges of the first end 20 of the body 1 1 deflector.
- the first 23 and second 24 edges are substantially parallel to the third direction 103.
- the first projecting portion 21 is formed by a cut portion 26 of the first end 20 of the body 1 1 deflector on the first edge 23.
- the deflector 10 further comprises a second projecting portion 22 formed by a cut-away portion 27 of the first end 20 of the body 1 1 deflector on the second edge 24.
- FIG. 4b is a vertical section along the segment IVB shown in Figure 4a.
- FIG. 4b illustrates the action of the bolt 40 on the first part protruding, in a case where the cylinder head 60 is placed on the deflector 10.
- the placement of the cylinder head 60 (illustrated by an arrow 61) pushes the first part 21 projecting downwards (movement illustrated by the arrow 210) with a elastic deformation.
- the second projecting portion 22 is also pushed down with elastic deformation. This creates a vertical stress on the post 31 which forces it to remain in the mortise.
- it is the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 parts projecting downwards.
- FIG. 5 illustrates the placement, according to a first placement method, of a deflector 10 according to one embodiment of the invention.
- the cylinder head gasket 40 has already been arranged on the crankcase 50.
- the cylinder head gasket 40 comprises a seal cutout 41 allowing passage of the deflector 10.
- the seal cutout 41 is preferably designed to receive the first end 20 of the body 1 1 of the baffle, so that the first projecting portion 21, and the second projecting portion 22, protrude slightly from the cylinder head gasket 40 upwardly.
- the cylinder head 60 is placed above the cylinder head gasket 40, pushing down the projecting part (s) 21, 22.
- the seal cutout 41 aids in guiding the deflector 10 when it is put in place.
- the deflector 10 according to any one of the first, second, third or fourth embodiments of the invention is compatible with the seal cutout 41.
- FIG. 6 illustrates a deflector 10 according to one embodiment of the invention.
- the deflector 10 preferably comprises vertical ribs 12, for example on each of its sides in the third direction 103.
- the corresponding cylinder block 50 comprises vertical grooves (not shown) for receiving the ribs 12.
- the ribs are arranged asymmetrically to allow keying during the introduction of the deflector 10.
- the ribs 12 help guide the deflector 10 during its introduction.
- the cylinder head gasket 40 then potentially does not include cutout 41 (visible in Figure 5), and the deflector 10 can be put in place before the placement of the gasket 40, according to a second method of placing the deflector 10.
- the seal 40 is placed above the cylinder block 50 after placement of the deflector 10, pushing down the portion or portions projecting 21, 22.
- the fact that the projecting portions 21, 22 deform elastically in being pushed down creates a vertical stress on the post 31 which forces it to remain in the mortise. This allows the deflector 10 to be particularly easy to install and is particularly resistant to horizontal flow pressure.
- the deflector 10 may comprise ribs 12.
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 |
|---|---|---|---|
| FR1659847A FR3057304B1 (fr) | 2016-10-12 | 2016-10-12 | "deflecteur de liquide de refroidissement" |
| PCT/FR2017/052448 WO2018069590A1 (fr) | 2016-10-12 | 2017-09-14 | Deflecteur de liquide de refroidissement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3526461A1 true EP3526461A1 (fr) | 2019-08-21 |
| EP3526461B1 EP3526461B1 (fr) | 2022-05-25 |
Family
ID=57590658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17777307.4A Active EP3526461B1 (fr) | 2016-10-12 | 2017-09-14 | Deflecteur de liquide de refroidissement |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3526461B1 (fr) |
| FR (1) | FR3057304B1 (fr) |
| WO (1) | WO2018069590A1 (fr) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3936247B2 (ja) * | 2002-06-12 | 2007-06-27 | トヨタ自動車株式会社 | エンジンの冷却装置 |
| JP4149322B2 (ja) * | 2003-07-11 | 2008-09-10 | 愛三工業株式会社 | ウォータジャケット用スペーサ及びそのスペーサを備えたシリンダブロック |
| JP4153389B2 (ja) * | 2003-09-09 | 2008-09-24 | トヨタ自動車株式会社 | シリンダブロックの冷却構造 |
| JP2007127066A (ja) * | 2005-11-04 | 2007-05-24 | Toyota Motor Corp | 内燃機関の冷却構造及び水路形成部材 |
| JP4845620B2 (ja) * | 2006-07-21 | 2011-12-28 | トヨタ自動車株式会社 | 内燃機関冷却用熱媒体流路区画部材、内燃機関冷却構造及び内燃機関冷却構造形成方法 |
| JP4462246B2 (ja) * | 2006-07-21 | 2010-05-12 | 三菱自動車工業株式会社 | 多気筒内燃機関の冷却構造 |
| JP4851258B2 (ja) * | 2006-07-31 | 2012-01-11 | トヨタ自動車株式会社 | 内燃機関冷却用熱媒体流路区画部材、内燃機関冷却機構及び内燃機関冷却機構形成方法 |
| FR2905423B1 (fr) | 2006-09-06 | 2008-10-10 | Peugeot Citroen Automobiles Sa | Dispositif de distribution de liquide de refroidissement dans un moteur de vehicule automobile |
| KR101163824B1 (ko) * | 2009-04-07 | 2012-07-09 | 현대자동차주식회사 | 내연기관의 냉각장치 및 워터재킷용 인서트 |
| JP5091989B2 (ja) * | 2010-08-03 | 2012-12-05 | 本田技研工業株式会社 | スペーサ |
| JP2011106387A (ja) * | 2009-11-19 | 2011-06-02 | Honda Motor Co Ltd | 内燃機関の冷却構造 |
| JP6277399B2 (ja) * | 2013-10-11 | 2018-02-14 | 内山工業株式会社 | ウォータジャケットスペーサの製造方法 |
-
2016
- 2016-10-12 FR FR1659847A patent/FR3057304B1/fr not_active Expired - Fee Related
-
2017
- 2017-09-14 WO PCT/FR2017/052448 patent/WO2018069590A1/fr not_active Ceased
- 2017-09-14 EP EP17777307.4A patent/EP3526461B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3057304B1 (fr) | 2019-11-15 |
| WO2018069590A1 (fr) | 2018-04-19 |
| EP3526461B1 (fr) | 2022-05-25 |
| FR3057304A1 (fr) | 2018-04-13 |
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