CN104126068B - Piston cooling device - Google Patents
Piston cooling device Download PDFInfo
- Publication number
- CN104126068B CN104126068B CN201380008062.0A CN201380008062A CN104126068B CN 104126068 B CN104126068 B CN 104126068B CN 201380008062 A CN201380008062 A CN 201380008062A CN 104126068 B CN104126068 B CN 104126068B
- Authority
- CN
- China
- Prior art keywords
- piston
- cooling
- cooling medium
- cylinder sleeve
- cooling oil
- 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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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
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
-
- 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
-
- 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
- F01P3/10—Cooling by flow of coolant through pistons
-
- 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
- F02F1/004—Cylinder liners
-
- 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
- F02F1/16—Cylinder liners of wet type
-
- 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
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- 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
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
- F02F3/225—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid the liquid being directed into blind holes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Cooling device for the reciprocating-piston (2) of explosive motor includes the cooling medium injector (5 for being used to be ejected into cooling oil in the space (10) positioned at the lower section of piston top (2a) and between piston (2) and cylinder sleeve (1), 5 '), for by cooling oil from positioned at piston top (2a) lower section space (10) introduce cooling oil passage (7) opening (8), and for cooling oil to be supplied into cooling medium injector (5,5 ') cooling medium pipeline (6,6 ').Cooling medium injector (5,5 ') in such height placement in cylinder, i.e., the height is caused, when piston (2) is positioned at bottom dead centre, the top (5a, 5a ') of cooling medium injector (5,5 ') is located at the top of the central axis (4a) of the piston pin (4) of piston (2).
Description
Technical field
The present invention relates to a kind of cooling device of the reciprocating-piston for explosive motor.The invention further relates to one kind for living
The cylinder sleeve of piston engine.
Background technology
In large-scale medium-speed engine, piston cooling is entered typically via being drilled in bent axle, connecting rod and piston pin
OK.In high speed engine, piston cooling is generally performed by using oil spurts.Spray cooling is also in medium-speed engine
It is favourable because which omits in crankshaft toothed wheel part for oil drilling the need for and therefore allow load higher
With relatively low manufacturing cost.In a kind of typical spray cooling device, cooling device is provided with for the independent of piston cooling
Lubricating oil system.For being atomized the oil spurts arrangement of nozzles of cooling oil in engine body.Via injection nozzle, oil is sprayed
It is mapped on the bottom side of each piston.Piston skirt is provided with the space for receiving oil.Piston is led in drilling in oily reception space
The cooling duct on top.The shortcoming of the piston cooling device is relatively long jet length, and its function to cooling system has not
The effect of profit.Due to mobile connecting rod and counterweight, engine body is interior and especially the space below cylinder is that have
Limit, so cooling device is for execution or one kind is challenged.
The content of the invention
It is an object of the present invention to provide a kind of cooling device of the reciprocating-piston for explosive motor.Piston is arranged in hair
In the cylinder sleeve of motivation and including piston top and piston skirt.It is another object of the present invention to provide one kind for piston engine
Improved cylinder sleeve.
Cooling device of the invention includes being at least partially disposed at cooling oil passage in piston top, for will be cold
But oil spurts is extremely located at cooling medium injector, cloth in the lower section of piston top and the space between piston and cylinder sleeve
Put and lead to for cooling oil is introduced into cooling oil from the space positioned at the lower section of piston top on the basal surface of cooling oil passage
The opening in road, and for cooling oil to be supplied to the cooling medium pipeline of cooling medium injector.Cooling medium injector exists
Such height placement is in cylinder, i.e. the height is caused, when piston is located at bottom dead centre, the top of cooling medium injector
Positioned at the top of the central axis of the piston pin of piston.
The basal surface of cooling oil passage is disposed proximate to due to cooling medium injector, so jet length is very short, and
And improve the cooling effect of cooling oil.
According to the embodiment of the present invention, when piston is located at bottom dead centre, the top of injector is located at whole piston pin
Top.
Another implementation method of the invention, piston is box-type piston, wherein, piston skirt is opened along towards the direction of plug pin
Open.Another implementation method of the invention, cooling medium injector is arranged to and is projected into cylinder along the direction of piston pin.
In the case of box-type piston, cooling medium injector can be secured directly to cylinder sleeve and be positioned proximate to cooling oil passage
Basal surface.
According to the embodiment of the present invention, a part for cooling medium injector is with the longitudinal axis parallel to cylinder sleeve
Mode is arranged in the wall of cylinder sleeve.Another implementation method of the invention, the rear surface of cylinder sleeve is provided with for inciting somebody to action
Cooling oil is incorporated into the opening in the cooling medium pipeline in the wall of cylinder sleeve.Another implementation method of the invention,
The device includes being located in engine body for cooling oil to be incorporated into the cooling medium pipeline in the wall of cylinder sleeve
In drilling.If cooling medium pipeline is disposed in the wall of cylinder sleeve, the demand to independent pipe fitting can be omitted.Pass through
Arrange drilling in the lower radial bearing of cylinder sleeve, cooling oil be also used as reduce engine body and cylinder sleeve it
Between contact surface abrasion and corrosion impact-absorbing medium.
According to the embodiment of the present invention, the outer surface of cylinder sleeve is provided with opening, and the opening is arranged against starting
The supporting surface of machine body is for cooling oil is incorporated into cooling medium pipeline.Another implementation method of the invention,
The supporting surface of engine body is arranged to the lower end for radially supporting cylinder sleeve.
Still another implementation method of the invention, the device includes the appearance being located between engine body and cylinder sleeve
Gap, cooling oil is incorporated into cooling medium injector from the allowance.Therefore cooling oil is also used as the damping for cylinder sleeve
And cooling medium.It is thereby achieved that effective cooling of cylinder sleeve, and due to cushioning effect, also reduce engine body
Abrasion and corrosion between cylinder sleeve.
Cylinder sleeve of the invention includes the cooling medium pipeline being arranged in the wall of cylinder sleeve and is arranged in cylinder
So that cooling oil is simultaneously further supplied to cooling medium injector on the inner surface of set and with cooling medium fluid communication
Supplied to the opening of the piston of engine.The outer surface of cylinder sleeve is provided with for cooling oil to be incorporated into cooling medium pipeline
Opening, the opening may be disposed to against being arranged in engine body radially to support the table of the lower end of cylinder sleeve
Face.
In the case of cylinder sleeve of the invention, cooling oil can be introduced in positioning via the lower end of cylinder sleeve
Into in the cooling medium injector close to piston top.
According to the embodiment of the present invention, the opening on the inner surface of cylinder sleeve is located at such height, i.e. this highly makes
, when piston is located at bottom dead centre, the top of cooling medium injector can be arranged in the central axis of the piston pin of piston
Top.
According to the embodiment of the present invention, at least a portion of the cooling medium pipeline in the wall of cylinder sleeve is parallel to cylinder
The longitudinal axis of set.
Brief description of the drawings
Fig. 1 shows a kind of piston cooling device according to the embodiment of the present invention.
Fig. 2 show along A-A Fig. 1 sectional view.
Fig. 3 shows the piston cooling device of another implementation method of the invention.
Fig. 4 shows the piston cooling device of still another implementation method of the invention.
Specific embodiment
Embodiments of the present invention are more fully described now with reference to accompanying drawing.
The cooling device of the reciprocating-piston 2 for explosive motor according to the embodiment of the present invention is shown in Fig. 1.
In Fig. 1, piston 2 is located at bottom dead centre.The use of the engine of piston cooling device is large-scale middling speed or high speed explosive motor.Hair
Motivation for example can serve as ship or for the main or assisted engine in the power set for producing electric power.Engine can have
Any rational number of cylinders, it for example may be arranged in upright arrangement or V-structure.Each cylinder of engine is equipped with cylinder sleeve
1.Cylinder sleeve 1 is arranged in engine body 12.The upper end of cylinder sleeve 1 is provided with collar 1, and the collar leans against engine body 12
On upper surface.Engine body 12 include projection 19, the projection towards cylinder sleeve 1 longitudinal axis extend and radially
Support the upper end of cylinder sleeve 1.Second projection 13 forms the radial support of the lower end for radially supporting cylinder sleeve 1.It is living
Plug 2 is arranged in cylinder.Piston includes piston top 2a and piston skirt 2b.Piston 2 is connected to connecting rod 3 by piston pin 4.Piston
2 is so-called box-type piston, and wherein piston skirt 2b is opened wide towards the direction of piston pin 4.Therefore, at the two ends of piston pin 4, in cylinder
Between set 1 and piston 2 and in the empty space 10 formed below of piston top 2a.
In order to cool down piston 2, engine is provided with cooling device.Cooling device is used to be incorporated into cooling oil the bottom of piston 2
On surface and it is further incorporated into the cooling oil passage for being arranged in the upper end of piston 2 and being at least partially situated in piston top 2a
In 7.Cooling device includes the cooling medium injector 5 being arranged in cylinder.Cooling pump (not shown) utilizes cooling medium pipeline
6 are connected to cooling medium injector 5, for cooling oil to be supplied into cooling medium injector 5.Cooling medium injector 5 is in vapour
Such height is located in cylinder, i.e. the height is caused, when piston 2 is located at bottom dead centre, the top 5a of cooling medium injector 5
Positioned at the top of the central axis of piston pin 4.In the embodiment of figure 1, the top 5a of cooling medium injector 5 is located at whole
The top of piston pin 4.The lower surface of cooling oil passage 7 is positioned close to due to cooling medium injector 5, it is achieved that short
Jet length and effective cooling.Cooling oil be injected into positioned at the lower section of piston top 2a and positioned at cylinder sleeve 1 and piston 2 it
Between space 10 in.Cooling medium injector 5 is arranged to the top spray cooling oil towards piston 2.From positioned at piston top 2a
Lower section space 10, cooling oil can pass through and be arranged in opening 8 in the bottom of cooling oil passage 7 and flow into cooling oil passage 7.
In the embodiment of figure 1, cooling medium pipeline 6 is partially disposed within the wall of cylinder jacket 1.Use the cloth
Put, it is possible to reduce the need for independent pipe fitting.Cooling medium injector 5 is arranged to direction along piston pin 4 from cylinder sleeve 1
Wall is projected into cylinder.However, it is also possible to, cooling medium injector 5 can at different angles protrude into cylinder.It is cold
But medium ejectors 5 can also deviate the center line of piston pin 4.Cooling medium injector 5 is L-shaped, and cooling medium sprays
The openend of emitter 5 is towards cylinder head.Therefore cooling oil spurts is carried out towards the lower surface of cooling oil passage 7.Under cylinder sleeve 1
End is provided with opening 9, for cooling oil to be introduced the cooling medium pipeline 6 in the wall of cylinder sleeve 1.Opening 9 is located at cylinder
On the end face of set 1.
In fig. 1 and 2, further it is shown that the second cooling medium injector 5'.Second cooling medium pipeline 6' is by partly
It is arranged in the wall of cylinder sleeve 1, for the second cooling medium injector 5' to be connected into cooling oil pump.Cooling oil is via positioned at vapour
Drilling 11 in the lower radial bearing 13 of cylinder sleeve 1 and be introduced in the second cooling medium pipeline in the wall of cylinder sleeve 1
In 6'.Cylinder sleeve 1 is provided with opening 17, and the opening is arranged on the outer surface of cylinder sleeve 1.Opening 17 is arranged to opposite starting
The surface of machine body, the surface radially supports the lower end of cylinder sleeve 1.Opening 17 and the drilling 11 pairs of engine body 12
Together.Sealing 21 is arranged between cylinder sleeve 1 and engine body 12 around opening 17.Through opening 17, cooling oil can be drawn
Enter in the cooling medium pipeline 6' in the wall of cylinder sleeve 1.It is cold by arranging drilling 11 in the projection 13 of supporting cylinder sleeve 1
But oil is also used as the damping of abrasion and the corrosion for reducing the contact surface between engine body 12 and cylinder sleeve 1
Medium.The inner surface setting of cylinder sleeve 1 has opening 20, and the opening is in fluid communication with cooling medium pipeline 6,6'.Through opening 20,
Cooling oil can be provided to cooling medium injector 5'.Opening 20 is located at such height, i.e. the height is caused, when piston 2
During positioned at bottom dead centre, the top 5a' of cooling medium injector 5' can be arranged in the top of the central axis 4a of piston pin 4.To the greatest extent
Pipe is preferably set figure 1 illustrates two kinds of different cooling devices, but each cylinder of engine at the two ends of piston pin 4
Identical cooling device.
In the embodiment of fig. 3, for cooling oil to be introduced the cooling medium pipeline 6 of cooling medium injector 5 by portion
It is arranged in engine body 12 with dividing.Cooling oil is introduced in positioned at engine body 12 and vapour in cooling medium pipeline 6
In allowance 14 between cylinder sleeve 1.Cylinder sleeve 1 be provided with for by cooling oil from positioned between engine body 12 and cylinder sleeve 1
Allowance 14 be incorporated into the drilling 16 of cooling medium injector 5.By via between engine body 12 and cylinder sleeve 1
Allowance 14 arranges the supply of cooling oil, and cooling oil is also used as reducing between engine body 12 and cylinder sleeve 1
The impact-absorbing medium of abrasion and the corrosion of contact surface.The arrangement also achieves the effective cooling of cylinder sleeve 1.The embodiment party of Fig. 4
Formula is similar with the implementation method of Fig. 3.Its difference is cooling oil via the allowance between engine body 12 and cylinder sleeve 1
14 upper end and be introduced in volume 14.Single pipe fitting 15 be used to be incorporated into cooling oil the cooling of engine body 12
In medium pipeline 6.
Those skilled in the art will be appreciated that the present invention is not limited to implementation method as described above, and can be
It is changed within the scope of application.For example, the feature of different embodiments can be combined.
Claims (9)
1. a kind of cooling device of reciprocating-piston (2) for explosive motor, the piston (2) is arranged in the engine
In cylinder sleeve (1) and including piston top (2a) and piston skirt (2b), the cooling device includes：
- cooling oil passage (7), the cooling oil passage is at least partially disposed in the piston top (2a),
- cooling medium injector (5,5'), the cooling medium injector is used to for cooling oil spurts to be extremely located at the piston top
In the lower section of (2a) and the space (10) between the piston (2) and the cylinder sleeve (1), the cooling medium injection
Device (5,5') is in such height placement in cylinder, i.e. the height is caused, described when the piston (2) is positioned at bottom dead centre
The top (5a, 5a') of cooling medium injector (5,5') is located at the central axis (4a) of the piston pin (4) of the piston (2)
Top,
- opening (8), the opening is arranged on the basal surface of the cooling oil passage (7), for by cooling oil from positioned at the work
The space (10) of the lower section of plug top (2a) introduces the cooling oil passage (7), and
- cooling medium pipeline (6,6'), the cooling medium pipeline be used for by cooling oil supplied to the cooling medium injector (5,
5'),
Characterized in that, described device includes the allowance (14) being located between engine body (12) and the cylinder sleeve (1), it is cold
But oil introduces the cooling medium injector (5) from the allowance (14).
2. device according to claim 1, it is characterised in that when the piston (2) is positioned at bottom dead centre, the cooling is situated between
The top (5a, 5a') of matter injector (5,5') is located at the top of the whole piston pin (4).
3. device according to claim 1 and 2, it is characterised in that the piston (2) is box-type piston (2), wherein, institute
Piston skirt (2b) is stated to be opened wide towards the direction of the piston pin (4).
4. device according to claim 3, it is characterised in that the cooling medium injector (5,5') is arranged to along described
The direction of piston pin (4) is projected into the cylinder.
5. device according to claim 1, it is characterised in that a part for the cooling medium pipeline (6,6') with institute
The mode for stating the longitudinal axis parallel of cylinder sleeve (1) is arranged in the wall of the cylinder sleeve (1).
6. device according to claim 5, it is characterised in that the rear surface of the cylinder sleeve (1) is provided with opening
(9), cooling oil is introduced the cooling medium pipeline (6) in the wall of the cylinder sleeve (1).
7. device according to claim 5, it is characterised in that described device includes the brill in engine body (12)
Hole (11), the drilling is for cooling oil to be introduced the cooling medium pipeline in the wall of the cylinder sleeve (1) (6').
8. device according to claim 7, it is characterised in that be provided with opening on the outer surface of the cylinder sleeve (1)
(17), the opening (17) is arranged against the supporting surface of the engine body (12) for cooling oil is introduced into described
Cooling medium pipeline is (6').
9. device according to claim 8, it is characterised in that the supporting surface arrangement of the engine body (12)
Radially to support the lower end of the cylinder sleeve (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20125167A FI124930B (en) | 2012-02-15 | 2012-02-15 | The piston cooling arrangement |
| FI20125167 | 2012-02-15 | ||
| PCT/FI2013/050158 WO2013121105A1 (en) | 2012-02-15 | 2013-02-13 | Piston cooling arrangement and cylinder liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104126068A CN104126068A (en) | 2014-10-29 |
| CN104126068B true CN104126068B (en) | 2017-05-31 |
Family
ID=48014033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380008062.0A Active CN104126068B (en) | 2012-02-15 | 2013-02-13 | Piston cooling device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2820277B1 (en) |
| KR (1) | KR102065800B1 (en) |
| CN (1) | CN104126068B (en) |
| BR (1) | BR112014018952B1 (en) |
| FI (1) | FI124930B (en) |
| WO (1) | WO2013121105A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT514089B1 (en) | 2013-09-04 | 2014-10-15 | Avl List Gmbh | Internal combustion engine with at least one cylinder |
| DE102016113394B3 (en) * | 2016-07-20 | 2017-10-19 | Ino8 Pty Ltd | Thermal management system and method of variable cylinder cooling of an internal combustion engine |
| US10808646B2 (en) * | 2019-01-09 | 2020-10-20 | Haier Us Appliance Solutions, Inc. | Cooled piston and cylinder for compressors and engines |
| WO2023193885A1 (en) | 2022-04-05 | 2023-10-12 | Wärtsilä Finland Oy | A nozzle for a cooling arrangement of a piston in an internal combustion piston engine and a cooling arrangement for a piston of an internal combustion piston engine |
| WO2024044450A1 (en) * | 2022-08-22 | 2024-02-29 | Cummins Inc. | Pistons and internal combustion engine cylinders configured for piston cooling |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2135896A1 (en) * | 1971-07-17 | 1973-02-01 | Kloeckner Humboldt Deutz Ag | PISTON COOLING FOR COMBUSTION MACHINES |
| DE19747746C1 (en) * | 1997-10-29 | 1998-11-19 | Alcan Gmbh | Cooled piston for combustion (IC) engine |
| US6634278B2 (en) * | 2000-10-18 | 2003-10-21 | Caterpillar Inc. | Piston for an internal combustion engine and method of assembly |
| DE10214830A1 (en) * | 2002-04-04 | 2004-01-08 | Mahle Gmbh | Oil inlet for a piston of an internal combustion engine provided with a cooling channel |
| KR100610108B1 (en) * | 2004-08-18 | 2006-08-09 | 현대자동차주식회사 | Cooling nozzle for piston |
| DE102004056769A1 (en) * | 2004-11-24 | 2006-06-01 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine and combination of a piston with an oil injection assembly |
| JP4337741B2 (en) * | 2005-01-19 | 2009-09-30 | トヨタ自動車株式会社 | Piston for internal combustion engine |
-
2012
- 2012-02-15 FI FI20125167A patent/FI124930B/en active IP Right Grant
-
2013
- 2013-02-13 BR BR112014018952-8A patent/BR112014018952B1/en active IP Right Grant
- 2013-02-13 CN CN201380008062.0A patent/CN104126068B/en active Active
- 2013-02-13 EP EP13712819.5A patent/EP2820277B1/en active Active
- 2013-02-13 KR KR1020147023469A patent/KR102065800B1/en active IP Right Grant
- 2013-02-13 WO PCT/FI2013/050158 patent/WO2013121105A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR102065800B1 (en) | 2020-02-11 |
| BR112014018952B1 (en) | 2021-11-23 |
| WO2013121105A1 (en) | 2013-08-22 |
| CN104126068A (en) | 2014-10-29 |
| KR20140125397A (en) | 2014-10-28 |
| FI124930B (en) | 2015-03-31 |
| BR112014018952A8 (en) | 2017-07-11 |
| EP2820277B1 (en) | 2016-04-06 |
| EP2820277A1 (en) | 2015-01-07 |
| FI20125167A (en) | 2013-08-16 |
| BR112014018952A2 (en) | 2017-06-20 |
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