CN108691631A - A kind of cooling system for internal combustion engine - Google Patents
A kind of cooling system for internal combustion engine Download PDFInfo
- Publication number
- CN108691631A CN108691631A CN201810298062.3A CN201810298062A CN108691631A CN 108691631 A CN108691631 A CN 108691631A CN 201810298062 A CN201810298062 A CN 201810298062A CN 108691631 A CN108691631 A CN 108691631A
- Authority
- CN
- China
- Prior art keywords
- engine
- containment member
- vehicle
- protruding portion
- cover assembly
- 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.)
- Pending
Links
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
- F01P1/00—Air cooling
-
- 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
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- 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
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
-
- 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
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/28—Cylinder heads having cooling means for air cooling
-
- 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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/007—Adaptations for cooling
-
- 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
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
- F01P1/10—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- 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
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
- F01P2001/023—Cooling cylinders
-
- 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
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
- F01P2001/026—Cooling cylinder heads
-
- 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
- F01P2050/00—Applications
- F01P2050/16—Motor-cycles
-
- 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
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
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)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
This theme discloses a kind of internal combustion (IC) engine (101).Internal combustion (IC) engine (101) includes pressure cooling system (200).Pressure cooling system (200) wherein containment member (401) is mounted on cover assembly (301 by the multiple protruding portion (310) arranged with aturegularaintervals, 302) on outer periphery, and containment member (401) be provided with its accommodate multiple protruding portion (310) for its assembling of cover assembly (301,302) multiple slits (410).This theme provides the simplicity that containment member (401) is installed during engine assembles, and the possibility that mistake occurs is smaller.Such assembling causes containment member (401) to be preferably attached and therefore provides effective air sealability.Finally, the performance of I/C engine (101) is improved by effectively cooling.
Description
Technical field
Present invention relates in general to a kind of A seating vehicles.It is more particularly related to a kind of for cooling down A seating vehicle
Internal combustion engine cooling system
Background technology
Internal combustion engine will be converted into mechanical energy from the obtained thermal energy of fuel and oxidant (air) burning, and mechanical energy can be used for
Carry out various machine works.It is used to be widely applied, including provide the movement that motive power is used for automobile.One kind by
Internal combustion engine provide power this type automobile be commonly referred to as scooter across formula two wheeler.The critical piece packet of internal combustion engine
Include cylinder head, the reciprocating piston in cylinder block and the connecting rod for connecting the piston to reciprocating bent axle.During operation of internal combustion engine,
The burning of fuel and oxidant occurs in cylinder block and mechanical energy is transmitted to reciprocating piston.This operation is in cylinder block
Interior and its surrounding generates a large amount of thermal energy.This thermal energy increases the temperature of cylinder block and its ambient atmosphere.Therefore, it is necessary to cooling
Cylinder block, its associated components and surrounding air.The I/C engine across formula two wheeler of such as scooter usually utilizes operable
Ground is connected to the cooling fan of bent axle, and fans force air flows through the shield around internal combustion engine.Pass through shield in air
During cover cycle, it is arranged in the sky that the containment member above shield is utilized, and is enclosed between shield and cylinder cap surface
Gas gap.But the design and installation of containment member are vital, and invalid sealing allows air from the upper of shield
Portion leaks.This be not it is desirable that because the crucial thermal region as target is not cooled by, and it reduce engines
Performance and the cooling efficiency of internal combustion engine is made to decline.
Description of the drawings
Detailed description is illustrated by reference to attached drawing.Identical reference numeral is used to refer to similar spy in all attached drawings
It seeks peace component.
Fig. 1 shows the right side (RH) view of the sulky vehicle of the embodiment using this theme.
Fig. 2 shows the side views of the internal combustion engine and forced air cooling system of the embodiment for utilizing this theme.
Fig. 3 shows the exploded view of the internal combustion engine of the embodiment according to this theme, cover assembly and containment member.
Fig. 4 shows the isometric view of the cover assembly of the embodiment according to this theme.
Fig. 5 shows the amplification stereogram of assembling of the containment member according to the embodiment of this theme on protruding portion.
Specific implementation mode
The various features and embodiment of the present invention will be clearly apparent from then being further described to it below.According to one
Embodiment, internal combustion (IC) engine described herein is with four cycleoperations.This I/C engine is mounted on across formula two-wheeled
In vehicle.It is worth noting that, I/C engine can be mounted on two-wheeled in different arrangements, such as in a manner of horizontal and vertical
In vehicle.However, in the following description, such engine is laterally installed at the lower part of formula sulky vehicle.It can
To imagine, within the spirit and scope of the present invention, theory of the invention can be adapted for other types of vehicle.Moreover, institute
" preceding " and " rear " and " left side " and " right side " mentioned in the subsequent description of the embodiment shown, which refers to, works as from the rear portion of I/C engine
Front and rear when observing and watching forward and left and right.Composition about the part other than the present invention for constituting pith
Detailed description be omitted in place appropriate.
During I/C engine operates, the burning of air fuel mixture is happened to be formed between cylinder head and cylinder block
Combustion chamber in.This operation the gentle cylinder interior of cylinder head and around generate a large amount of thermal energy, and increase its surrounding space
Temperature.Therefore, it is necessary to cooling cylinder block, its associated components and surrounding air.It is often necessary to which cooling system cools down internal combustion
Machine component.
In general, in such as scooter in formula vehicle, swing type I/C engine is located at rear portion under under-seat, vehicle
Place.In the right side and left side of vehicle, there are two side main body panels around I/C engine.I/C engine can by rear-suspension system
Swingingly support and be attached to the frame of vehicle.The cylinder block of this I/C engine is closed by main body panel, and is sent out in IC
It is heated during engine operation.Due to lacking air circulation appropriate around closed cylinder block, this internal combustion engine is logical
It is cooled down frequently with forced air cooling system.Within the system, by using cooling fan, atmospheric air is from outside atmosphere
It is inhaled into cooling system by entrance.The rotation of cooling fan and the rotation of engine crankshaft are integrated.Around cylinder block and
The shield of I/C engine guides atmospheric air, to cooling cylinder block.It is provided with fin around cylinder head and cylinder block, this increasing
The contact area for being exposed to circulation air is added.When air flows through fin, heat will be dispersed into cooling air.Shield can be with
It is made from multiple components and usually accommodates cooling fan.There are one the notch for discharging hot-air for shield.
Although the cooling of the cylinder block of I/C engine is necessary, in traditional pressure cooling system, usually deposit
In air from the leakage of shield, and the leakage of this air may significantly affect the cooling effect of forced air cooling system.It encloses
Around the upper area of shield, in the air gap between shield and the periphery of valve mechanism cover, air leakage is apparent.Therefore,
It is necessary to prevent this leakage.In general, the containment member of such as rubber seal is used.But installation containment member is one
A challenge, as it is possible that can be detached from.During engine assembles, the installation of containment member needs special tool and work
Platform.Further, it is possible that can misalignment, and installing incorrectly for containment member may potentially result in leakage and sometimes even
It is detached from from shield.
The present invention is directed to solve disadvantages mentioned above by a kind of pressure cooling system of offer, wherein containment member passes through to advise
The series of projections being then spaced apart is installed on the outer periphery of shield, and the containment member is provided with slit, narrow
Slot accommodates protruding portion for being assembled into shield.In addition, containment member is segmented into two half-unit, to be assembled in shield
In two half-unit.This solution offers the simplicities that containment member is installed during engine assembles, and mistake occurs
Possibility it is smaller.Such assembling can cause containment member to be preferably attached and therefore provide effective air sealing energy
Power.
This theme additionally provides a kind of pressure cooling system, in the case where air will not be caused to leak, has more preferable
Applicability and less maintenance cost.
By be more fully described in the following paragraphs in conjunction with attached drawing the present invention and all accompanyings embodiment and they
Further advantage.
Fig. 1 shows sulky vehicle according to an embodiment of the invention (100).The vehicle includes generally U-shaped in cross-section frame
The frame of frame, the U-frame frame provide generally open middle section to allow rider " across " to get on the bus.In general, frame packet
Include head tube (102), supervisor (107) and a pair of of side pipe (109) (only one is shown).Supervisor 107 one end in the horizontal direction to
It is lower and extend back, with formed with this to side pipe (109) connect across portion (117).There are head tube (102) at the other end,
Head tube (102) is configured to rotatably support steering tube (111) and is further connected to front suspension system at lower end
(121).Handlebar supporting member (not shown) is connected to the upper end of steering tube (111) and supports handlebar assembly (106).Two are stretched
Contracting formula front suspension system (121) (only one is shown) is attached to the holder (not shown) on the lower part of steering tube (111), front-wheel
(119) it is supported on holder.It is covered by the front mudguard (103) for being mounted on steering shaft (111) lower part on the top of front-wheel (119)
Lid.This includes tilting down and being connected to the lower frame area of supervisor (107) in the at one end across portion 117 to side pipe (109)
Section.It includes utility box (not shown), seat-assembly that multiple transverse tube (not shown), which are fixed on this between side pipe 109 with support,
(108) and with fuel tank cap (112) fuel tank assembly (not shown) vehicle accessory.Around the rear end of seat-assembly 108
There are a back seat handles (118) on fuel tank cap 112.I/C engine (101) is pivotably connected at its other end
To with trailing wheel (113) across formula frame.Rear mudguard (110) is arranged on trailing wheel (113).I/C engine (101) is logical
One or more rear suspension (not shown) are crossed further to be supported on frame.
Fig. 2 shows the side views according to the I/C engine (101) of the embodiment of this theme.I/C engine 101 is by cylinder
Lid (not shown), cylinder block (not shown), valve mechanism cover (201) and crankcase (204) composition.I/C engine (101) is equipped with
Forced air cooling system (200).Forced air cooling system (200) includes cooling fan (not shown) and for guiding and following
The cover assembly (301, referring to Fig. 4,302) of air in ring I/C engine (101).Cooling fan (not shown) is along its width side
To on the bent axle (not shown) on any one end of I/C engine (101).In the present embodiment, cooling fan (is not shown
Go out) it is mounted on the right side of I/C engine (101).Cover assembly (301,302) is configured to covering crankcase (204), cylinder head (not
Show), the part appropriate of cylinder block (not shown) and cooling fan.Cover assembly (301,302) is by assembling two components
It constitutes, that is, by RH shields (301) and LH shields (302) attachment to close I/C engine (101).LH shields (302) cover vapour
Cylinder body (not shown) and cylinder cover (202) part left part.RH shields 301 include two parts, and a part is that have
The cylinder part of the crankcase portion (301a) and closed cylinder lid (202) and cylinder block (not shown) of grid circular open (303)
Divide (301b).When RH shields (301a) are assembled the right side to close I/C engine (101), cooling fan is by crankcase portion
(301a) is closed.When RH shields (301) and LH shields (302) assembling are around cylinder cover 202 and cylinder block (not shown), protecting
The upper area (301) of shade assembly (301,302) and around cover assembly (301,302) entire periphery valve mechanism cover
(201) the air gap (210) are formed between.The air gap (210) is covered for preventing around cover assembly (301,302)
The air effusion of cycle is most important.RH shields (301) in the bottom direction of I/C engine 101 and LH shield (not shown)
Between join domain form exhaust join domain (250), discharge duct (251) is attached to cylinder cover (202) on it.
Fig. 3 show according to the embodiment of this theme be assembled on I/C engine (101) cover assembly (301,
302), the exploded view of containment member (401).During operation, the burning of fuel and oxidant is happened at cylinder block (not shown)
In and mechanical energy is transmitted to rotatable bent axle (not shown).Cooling fan (not shown) is attached to I/C engine (101)
In rotatable crankshaft on right side and RH shields (301) are enclosed in the I/C engine on right side above cooling fan (not shown)
(101) so that during rotatable bent axle (401) rotates, be integrally installed at cooling fan (not shown) thereon with
It is rotated, and is sucked cooling air in RH shields (301) by grid circular open (303).Grid circular open (303) passes through
The lower half portion of vehicle is exposed to air (see Fig. 1) so that during the operation of cooling fan (not shown), air is passed through lattice
Grid circular open (303) sucking is guided by cover assembly (301,302).Cylinder part (301b) closing cylinder block (does not show
Go out) and cylinder cover (not shown) another half part and LH shields (302) are connected to by boss.RH shields (301) have another
One circular open (304), spark plug (205) are mounted on around it in cylinder head (202).Containment member (401) is attached securely
On the joint of cover assembly (301,302) and cylinder head casing (201).Containment member (401) be mounted on cover assembly (301,
302) it on outer periphery and executes the sealing of cover assembly (301,302) and is leaked with the air that portion including preventing recycles.External axis
Include the one or more protruding portions being arranged with aturegularaintervals on entire outer periphery to the flat site around surface
(310).Containment member (401) includes that the one or more of the multiple protruding portion (310) on matching cover assembly (301,302) is narrow
Slot (410).
Fig. 4 is the isometric view according to the RH shields (301) and LH shields (302) of the embodiment of this theme.Containment member
(401) on the top being arranged on the flat site around cover assembly (301,302) outer axial surface.Circular open (304)
The removal and attachment for promoting spark plug (205), without removing RH shields (301).Fig. 5 is the embodiment according to this theme
The enlarged perspective of assembling of the containment member (401) in multiple protruding portion (310).Containment member (401) has multiple slits
(410), inside dimension and the size of protruding portion (310) exactly match.In view of the rubber for the part for forming containment member (401)
The elastic property of glue material, when assembling containment member by being inserted into multiple slits (410) on the multiple protruding portion (310)
(401) it when, forms press-fit and can be rigidly secured on cover assembly.Multiple protruding portion (310) includes setting
Shoulder (310a) on the free end of multiple protrusions (310).Compared with the size of the rest part of multiple protruding portion (310),
Shoulder (310a) includes expanding cross-sectional area.Shoulder (310a) be configured to prevent multiple slits (410) are inserted into it is multiple
The movement of containment member and make it possible to be appropriately shaped matched point between the two parts after protruding portion (310)
Tooth coordinates (snag fit).
According to disclosed above, many modifications and variations of this theme are possible.Therefore, claimed in this theme
In range, the disclosure can be to implement in addition to the other modes of specific descriptions.
Claims (10)
1. a kind of vehicle (100), including:
Internal combustion (IC) engine (101), internal combustion (IC) engine (101) include:
Forced air cooling system (200) is arranged on the I/C engine (101), the forced air cooling system (200)
Including cover assembly (301,302), the cover assembly (301,302) is arranged on the I/C engine (101) to cover
State at least part of I/C engine (101);And
The air gap (210), in the cylinder of the upper area and the I/C engine (101) of the cover assembly (301,302)
Between housing (201);
Wherein,
Containment member (401) is arranged on the outer periphery of the cover assembly (301,302), to prevent through the air gap
(210) air leakage;
The containment member (401) includes multiple slits (410);
The cover assembly (301,302) includes multiple protruding portion (310), and the multiple protruding portion (310) is configured to connect
Receipts are arranged in the multiple slit (410) on the containment member (401).
2. vehicle (100) according to claim 1, wherein the cover assembly includes substantially closing the I/C engine
(101) the RH shields (301) on right side and substantially close the I/C engine (101) left side LH shields (302).
3. vehicle (100) according to claim 1, wherein the multiple slit (410) on the containment member (401)
It is arranged with aturegularaintervals.
4. vehicle (100) according to claim 1, wherein the neighbouring the air gap of the multiple protruding portion (310)
(210) it is arranged in aturegularaintervals on the outer periphery of the cover assembly (301,302).
5. the vehicle (100) according to claim 1 or claim 3 or claim 4, wherein the multiple protruding portion
(310) there is size identical with the size of the multiple slit (410) on the containment member (401).
6. the vehicle (100) according to claim 1 or claim 2, wherein the containment member (401) is divided into two
Half portion, and the RH shields (301) and the LH shields (302) are configured to receive described the two of the containment member (401)
Each half portion in a half portion.
7. vehicle (100) according to claim 1, wherein the containment member (401) is arranged in around the shield group
In the upper part of the flat site of the external axial surface of part (301,302).
8. vehicle (100) according to claim 1, wherein the RH shields (301) include having grid circular open
(303) cylinder portion (301b) of crankcase portion (301a) and closed cylinder lid and cylinder block.
9. vehicle (100) according to claim 1, wherein the multiple protruding portion (310) is the multiple including being arranged in
Shoulder (310a) on the free end of protruding portion (310), the shoulder configurations at prevent by the multiple slit (410) be inserted into
The movement of the containment member (401) after to the multiple protruding portion (310).
10. the vehicle (100) according to claim 1 or claim 9, wherein the shoulder (310a) include with it is described more
The widened area of section that the size of the rest part of a protruding portion (310) is compared.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN201741011976 | 2017-04-03 | ||
| IN201741011976 | 2017-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691631A true CN108691631A (en) | 2018-10-23 |
Family
ID=61952542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810298062.3A Pending CN108691631A (en) | 2017-04-03 | 2018-04-03 | A kind of cooling system for internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3385521B1 (en) |
| CN (1) | CN108691631A (en) |
| MX (1) | MX2018004093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552809A (en) * | 2019-09-06 | 2019-12-10 | 四川千贻达机械有限责任公司 | Small-size general gasoline engine crankcase with forced cooling air duct |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109450B (en) * | 1959-05-08 | 1961-06-22 | Volkswagenwerk Ag | Blown air-cooled internal combustion engine |
| JPS62197623A (en) * | 1986-02-24 | 1987-09-01 | Yanmar Diesel Engine Co Ltd | Cooling device for air-cooled multi-cylinder type internal combustion engine |
| US7523726B2 (en) * | 2006-12-04 | 2009-04-28 | Kubota Corporation | Air-cooled V-shaped engine |
| JP4732375B2 (en) * | 2007-02-05 | 2011-07-27 | 本田技研工業株式会社 | Forced air-cooled internal combustion engine |
| US9522444B2 (en) * | 2012-11-29 | 2016-12-20 | GM Global Technology Operations LLC | Fan shroud and seal ring assembly, and method thereof |
| JP6237319B2 (en) * | 2014-02-20 | 2017-11-29 | スズキ株式会社 | Engine cooling structure |
-
2018
- 2018-04-03 MX MX2018004093A patent/MX2018004093A/en unknown
- 2018-04-03 CN CN201810298062.3A patent/CN108691631A/en active Pending
- 2018-04-03 EP EP18165417.9A patent/EP3385521B1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552809A (en) * | 2019-09-06 | 2019-12-10 | 四川千贻达机械有限责任公司 | Small-size general gasoline engine crankcase with forced cooling air duct |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3385521A1 (en) | 2018-10-10 |
| EP3385521B1 (en) | 2021-10-06 |
| MX2018004093A (en) | 2019-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181023 |
|
| WD01 | Invention patent application deemed withdrawn after publication |