CN107489511A - A kind of vehicle, engine and piston connecting rod unit cooling body - Google Patents
A kind of vehicle, engine and piston connecting rod unit cooling body Download PDFInfo
- Publication number
- CN107489511A CN107489511A CN201611207649.6A CN201611207649A CN107489511A CN 107489511 A CN107489511 A CN 107489511A CN 201611207649 A CN201611207649 A CN 201611207649A CN 107489511 A CN107489511 A CN 107489511A
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- CN
- China
- Prior art keywords
- piston
- oil
- connecting rod
- rod unit
- cooling passage
- 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
- 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
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- 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
-
- 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
- F01P2003/006—Liquid cooling the liquid being oil
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention discloses a kind of piston connecting rod unit cooling body, including the interior oil cooling passage being built in the head of piston, and the both ends of the interior oil cooling passage are respectively arranged with oil inlet and oil-out, so that coolant circulates.When needing to cool down piston top surface, coolant is introduced from oil inlet, during coolant flows in interior oil cooling passage, heat exchange is carried out with the heat of piston top surface, by its heat absorption, and as oil-out is discharged, formation circulates.Compared to set up in the prior art piston cooling nozzle to piston cavity roof carry out oil injection mode, present invention saves departmental cost, the space occupied by piston cooling nozzle is saved simultaneously, it is important that, piston top surface is more pressed close in the position of interior oil cooling passage, when coolant circulates wherein, radiating efficiency and radiating effect are improved.Invention additionally discloses a kind of engine and a kind of vehicle, its advantage are as described above.
Description
Technical field
The present invention relates to Vehicle Engineering technical field, more particularly to a kind of piston connecting rod unit cooling body.The present invention also relates to
And a kind of engine and a kind of vehicle.
Background technology
With the development of Chinese mechanical industry, increasing plant equipment has been used widely.
Number of parts on vehicle is numerous, up to up to ten thousand, including several systems, mechanism, assembly etc., for example sends out
The five big systemses of motivation and two great institutions, and driving system, steering, brakes and various electronic modules, sensing
Device etc..
Engine is most important part on vehicle, is the power of vehicle movement.Parts on engine are numerous, such as
Crankshaft-flywheel group, piston connecting rod unit and cylinder block, air throttle, atomizer, lubricating system, oil filter, ignition distributor, section temperature
Device and cooling system etc..Wherein, piston connecting rod unit is one of important component.The reciprocating motion of piston is changed into bent by piston connecting rod unit
The rotary motion of axle, while the power that will act on piston is changed into the external output torque of bent axle, to drive automotive wheel to rotate.
Piston connecting rod unit is the driving member of engine, is mainly used in the pressure of burning gases being transmitted to bent axle, bent axle is rotated and is exported
Power.Piston connecting rod unit is mainly made up of piston, piston ring, piston pin, connecting rod and connecting rod bearing shell etc..
When the engine is running, piston does reciprocal telescopic movement, and the top of piston and cylinder head, cylinder in cylinder
Wall collectively constitutes combustion chamber.With the load more and more higher of engine, piston temperature also more and more higher, to avoid piston temperature mistake
Height is adversely affected, it is necessary to be cooled down to piston.In the prior art, piston cooling is set up often through in piston inner wall
The mode of nozzle, cooling machine oil is ejected into the purpose that piston cavity top reaches radiating.However, piston cavity top and piston top
There is certain thickness, the radiating efficiency by way of piston cooling nozzle is to piston cavity top jet cooling oil between portion surface
It is relatively low, and radiating effect is poor.
Therefore, the cooling to piston top surface how is realized, radiating efficiency and radiating effect is improved, is this area
Technical staff's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of piston connecting rod unit cooling body, the radiating to piston top surface can be realized
Cooling, improve radiating efficiency and radiating effect.It is a further object of the present invention to provide a kind of engine and a kind of vehicle.
In order to solve the above technical problems, the present invention provides a kind of piston connecting rod unit cooling body, including it is built in piston
Interior oil cooling passage in head, and the both ends of the interior oil cooling passage are respectively arranged with oil inlet and oil-out, so that coolant circulates
Flowing.
Preferably, the ring-type that the interior oil cooling passage does not connect in head and the tail, and the oil inlet and oil-out are separately positioned on
Its head and the tail both ends.
Preferably, the height of the top surface of the interior oil cooling passage away from the piston accounts for the height of head of the piston
20%~40%.
Preferably, in addition to it is used for the connecting rod coordinated with the piston, is provided with the connecting rod for introducing coolant
Cooling oil duct, and the end of the cooling oil duct connects with the oil inlet.
Preferably, piston pin hole is provided with the piston, is provided with the inwall of the piston pin hole cold for accumulating
But the endless-oil groove of liquid, and the cooling oil duct is connected by the endless-oil groove with the oil inlet.
Preferably, the oil-out penetrates the internal chamber wall of the piston, so that coolant drops to oil sump.
Preferably, in addition to it is arranged in the interior oil cooling passage, the temperature control for detecting the piston top surface temperature
Switch, and when detection temperature value is more than preset temperature section, the temperature detect switch (TDS) makes the oil inlet and the interior oil cooling passage
Conducting；When detection temperature value is less than preset temperature section, the temperature detect switch (TDS) makes the oil inlet be cut with the interior oil cooling passage
Only.
Preferably, the temperature detect switch (TDS) include according to temperature change and the temperature sensing material block of expansion or shrinkage and with its phase
Even, the shutter for blocking the oil inlet.
The present invention also provides a kind of engine, including cylinder body and the piston connecting rod unit cooler that is arranged in the cylinder body
Structure, wherein, the piston connecting rod unit cooling body is the piston connecting rod unit cooling body described in any of the above-described.
The present invention also provides a kind of vehicle, including car body and the engine that is arranged in the car body, wherein, it is described to start
Machine is the engine described in the next item up.
Piston connecting rod unit cooling body provided by the present invention, mainly including interior oil cooling passage.Wherein, the interior oil cooling passage is set
In the head of piston, for carrying out radiating and cooling to the top surface of piston.The both ends of interior oil cooling passage are respectively arranged with oil-feed
Mouth and oil-out, coolant are entered in interior oil cooling passage from oil inlet, absorb the heat of piston top surface afterwards again from fuel-displaced
Flowed out in mouthful so that coolant is formed and circulated.In this way, piston connecting rod unit cooling body provided by the present invention, works as needs
When being cooled down to piston top surface, coolant is introduced from oil inlet, the mistake that coolant flows in interior oil cooling passage
Cheng Zhong, heat exchange is carried out with the heat of piston top surface, by its heat absorption, and as oil-out is discharged, forms recycle stream
It is dynamic.Compared to set up in the prior art piston cooling nozzle to piston cavity roof carry out oil injection cooling down mode,
Present invention saves departmental cost, while save the space occupied by piston cooling nozzle, it is important that the position of interior oil cooling passage
Put and more press close to piston top surface, when coolant circulates wherein, improve radiating efficiency and radiating effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of overall structure diagram of embodiment provided by the present invention；
Fig. 2 is the partial structural diagram of piston shown in Fig. 1；
Fig. 3 is the Section A-A structural representation in Fig. 2；
Fig. 4 is the section B-B structural representation in Fig. 2；
Fig. 5 is in the structural representation of opening for the temperature detect switch (TDS) shown in Fig. 3；
Fig. 6 is the structural representation that the temperature detect switch (TDS) shown in Fig. 3 is closed.
Wherein, in Fig. 1-Fig. 6：
Piston -1, interior oil cooling passage -2, oil inlet -201, oil-out -202, connecting rod -3, cooling oil duct -301 are living
Plug pin hole -4, endless-oil groove -401, temperature detect switch (TDS) -5, temperature sensing material block -501, shutter -502.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 and Fig. 2 are refer to, Fig. 1 is a kind of overall structure diagram of embodiment provided by the present invention, figure
2 be the partial structural diagram of piston shown in Fig. 1.
In a kind of embodiment provided by the present invention, piston connecting rod unit cooling body mainly includes interior oil cooling passage
2.Wherein, the interior oil cooling passage 2 is arranged in the head of piston 1, for carrying out radiating and cooling to the top surface of piston 1.It is interior cold
The both ends of oil duct 2 are respectively arranged with oil inlet 201 and oil-out 202, and coolant is entered in interior oil cooling passage 2 from oil inlet 201,
The heat for absorbing the top surface of piston 1 is flowed out from oil-out 202 again afterwards so that coolant is formed and circulated.
In this way, the piston connecting rod unit cooling body that the present embodiment is provided, when needing that the top surface of piston 1 is cooled down
During cooling, coolant is introduced from oil inlet 201, during coolant flows in interior oil cooling passage 2, with the top table of piston 1
The heat in face carries out heat exchange, and by its heat absorption, and as oil-out 202 is discharged, formation circulates.Compared to existing skill
The mode that piston cooling nozzle carries out oil injection cooling down to piston cavity roof is set up in art, the present embodiment saves portion
It is divided into this, while saves the space occupied by piston cooling nozzle, it is important that work is more pressed close in the position of interior oil cooling passage 2
1 top surface is filled in, when coolant circulates wherein, improves radiating efficiency and radiating effect.
As shown in Figure 3 and Figure 4, Fig. 3 is the Section A-A structural representation in Fig. 2, and Fig. 4 is the section B-B structure in Fig. 2
Schematic diagram.
In a kind of preferred embodiment on interior oil cooling passage 2, the interior oil cooling passage 2 can be in specifically the ring that head and the tail do not connect
Shape structure, and oil inlet 201 and oil-out 202 are separately positioned on the head and the tail both ends of interior oil cooling passage 2.It is arranged such, coolant
Entered from oil inlet 201 after interior oil cooling passage 2, you can circular motion track is formed along interior oil cooling passage 2, finally from fuel-displaced
Mouth 202 flows out.Because cylinder and piston 1 are generally cylindrical, therefore interior oil cooling passage 2 annular in shape enables to coolant to fit
Answer the shape of piston 1 so that top surface surrounding of the cooling range of coolant throughout piston 1.Also, interior oil cooling passage 2 annular in shape,
Also the heat absorption that coolant can be extended as far as possible is formed, and improves heat absorption efficiency.Certainly, the concrete structure of interior oil cooling passage 2 is not limited in
Cyclic structure, remaining such as tortuous roundabout " Z " character form structure etc. can equally use.
When carrying out radiating and cooling to the top surface of piston 1 by interior oil cooling passage 2, also need to consider the setting of interior oil cooling passage 2
Influence of the position to radiating efficiency.Specifically, set location of the interior oil cooling passage 2 in the head of piston 1 should not be excessively shallow, to avoid pair
The strength and stiffness of the top surface of piston 1 impact；Set location of the oil cooling passage 2 in the head of piston 1 be not yet in simultaneously
It is preferably too deep, in order to avoid heat exchange is caused apart from consequence excessive, that radiating efficiency reduces.Preferably, interior oil cooling passage 2 can be pushed up away from piston 1
The height on portion surface is arranged to account for the 20%~40% of the height of head of piston 1, such as 20%, 30% or 40% etc., so may be used
Take into account the top surface physical property of radiating efficiency and piston 1.
Coolant in interior oil cooling passage 2 need to circulate can proper heat reduction, and oil-feed set on interior oil cooling passage 2
The effect of mouth 201 and oil-out 202 is this.Specifically, being flowed into for convenience of coolant in oil inlet 201, the present embodiment exists
Cooling oil duct 301 is provided with connecting rod 3.Connecting rod 3 is connected with piston 1, and cooling oil duct 301 is used to introduce coolant,
And the end of cooling oil duct 301 connects with oil inlet 201, in this way, coolant can smoothly be entered by cooling oil duct 301 into
In hydraulic fluid port 201, coolant is provided for interior oil cooling passage 2.Certainly, the source block that comes of coolant is not limited in above-mentioned connecting rod 3, its
It is remaining to be such as additionally arranged at the bottom of coolant pipe in piston 1 mode such as to connect with oil inlet 201 equally possible.
Piston pin hole 4 nearby is additionally provided with view of the head of piston 1, it is present to the cooling oil duct 301 in connecting rod 3
Connection with the interior oil cooling passage 2 in the head of piston 1 impacts, and pin is on the other hand, the present embodiment is set on the inwall of piston pin hole 4
Endless-oil groove 401.One end of the endless-oil groove 401 connects with the cooling oil duct 301 in connecting rod 3, and the other end enters with interior oil cooling passage 2
Hydraulic fluid port 201 connects, in this way, the coolant in connecting rod 3 can smoothly be reached in oil inlet 201 by endless-oil groove 401.Due to ring oil
Groove 401 can accumulate a certain amount of coolant, and be recessed on the inwall of piston pin hole 4, therefore can avoid piston pin
Hinder to influence, and work as engine operationally, piston pin is inserted into piston pin hole 4, endless-oil groove 401 can also be formed close
Effect is sealed, avoids revealing.
As for the oil-out 202 of interior oil cooling passage 2, the end of oil-out 202 and the internal chamber wall of piston 1 are passed through in the present embodiment
It is logical, so that after being flowed in interior oil cooling passage 2 and absorbing the top surface heat of piston 1, flow out and fall from oil-out 202
Space of the inner chamber of piston 1 where with connecting rod 3 is fallen on, and is finally dropped in oil sump, is reclaimed and reused.
In another preferred embodiment provided by the present invention, in order to realize the control to the top surface temperature of piston 1
System, avoids radiating effect deficiency or the excessive situation that radiates occurs, and temperature detect switch (TDS) is additionally arranged in interior oil cooling passage 2 in the present embodiment
5, the temperature detect switch (TDS) 5 is a kind of execution by temperature value control or the switch block for stopping predetermined registration operation.Specifically, the temperature control is opened
The 5 top surface temperature mainly for detection of piston 1 are closed, its upper surface can directly contact with the top surface of piston 1.Also,
When temperature detect switch (TDS) 5 detects that the top surface temperature value of piston 1 is more than preset temperature section, illustrate the top surface of piston 1
Temperature is higher, it is necessary to cooling down, and now temperature detect switch (TDS) 5 makes oil inlet 201 be turned on interior oil cooling passage 2, even if coolant can
Smoothly it is flowed at oil inlet 201 in interior oil cooling passage 2 and carries out circulation cooling；And when temperature detect switch (TDS) 5 detects the top of piston 1
When surface temperature value is less than preset temperature section, illustrates that the top surface temperature of piston 1 is relatively low, need not temporarily be cooled, this
When temperature detect switch (TDS) 5 oil inlet 201 is ended with interior oil cooling passage 2, even if coolant can not be flowed into interior cold oil at oil inlet 201
In road 2, radiating and cooling operation can not be carried out.
As shown in Figure 5 and Figure 6, Fig. 5 is in the structural representation of opening for the temperature detect switch (TDS) shown in Fig. 3, and Fig. 6 is
The structural representation that temperature detect switch (TDS) shown in Fig. 3 is closed.
Specifically, in a kind of preferred embodiment on temperature detect switch (TDS) 5, the temperature detect switch (TDS) 5 may include temperature sensing material block
501 and coupled shutter 502.Wherein, temperature sensing material block 501 is a kind of material of expansion or shrinkage according to temperature change
Material, specifically, when the detected value of temperature detect switch (TDS) 5 is more than preset temperature section, temperature sensing material block 501 expands, and promotes
Shutter 502 is moved, and then shutter 502 is pushed away and drives hydraulic fluid port 201 into so that oil inlet 201 opens wide, and coolant smoothly flows into
Interior oil cooling passage 2 carries out radiating circulation；And when the detected value of temperature detect switch (TDS) 5 is less than preset temperature section, temperature sensing material block 501 is sent out
It is raw to shrink, and retract shutter 502 so that shutter 502 covers oil inlet 201, and coolant cannot be introduced into interior oil cooling passage 2
In.Certainly, the specific constructive form of temperature detect switch (TDS) 5 is not limited in the above-mentioned structure shape of temperature sensing material block 501 and shutter 502
Formula, remaining such as controls the opening and closing of electrically operated valve to be equally possible and then the opening and closing mode of control oil inlet 201 by controller.
The present embodiment also provides a kind of engine, including cylinder body and the piston connecting rod unit cooling body that is arranged in cylinder body,
Wherein, the piston connecting rod unit cooling body is identical with above-mentioned related content, and here is omitted.
The present embodiment also provides a kind of vehicle, including car body and the engine that is arranged in car body, wherein, the engine with
Foregoing related content is identical, and here is omitted.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of piston connecting rod unit cooling body, it is characterised in that including the interior oil cooling passage being built in the head of piston (1)
(2), and the both ends of the interior oil cooling passage (2) are respectively arranged with oil inlet (201) and oil-out (202), so that coolant circulates
Flowing.
2. piston connecting rod unit cooling body according to claim 1, it is characterised in that the interior oil cooling passage (2) is in head and the tail
The ring-type not connected, and the oil inlet (201) and oil-out (202) are separately positioned on its head and the tail both ends.
3. piston connecting rod unit cooling body according to claim 2, it is characterised in that the interior oil cooling passage (2) is away from described
The height of the top surface of piston (1) accounts for the 20%~40% of the height of head of the piston (1).
4. piston connecting rod unit cooling body according to claim 2, it is characterised in that also include being used for and the piston
(1) connecting rod (3) coordinated, the interior cooling oil duct (301) being provided with for introducing coolant of the connecting rod (3), and the cooling
The end of oil duct (301) connects with the oil inlet (201).
5. piston connecting rod unit cooling body according to claim 4, it is characterised in that be provided with work on the piston (1)
Plug pin hole (4), the endless-oil groove (401) for accumulating coolant, and the cooling are provided with the inwall of the piston pin hole (4)
Oil duct (301) is connected by the endless-oil groove (401) with the oil inlet (201).
6. piston connecting rod unit cooling body according to claim 5, it is characterised in that the oil-out (202) penetrates institute
The internal chamber wall of piston (1) is stated, so that coolant drops to oil sump.
7. according to the piston connecting rod unit cooling body described in claim any one of 1-6, it is characterised in that also include being arranged at institute
The temperature detect switch (TDS) (5) in interior oil cooling passage (2), for detecting the piston (1) top surface temperature is stated, and when detection temperature value is big
When preset temperature section, the temperature detect switch (TDS) (5) makes the oil inlet (201) be turned on the interior oil cooling passage (2)；Work as detection
When temperature value is less than preset temperature section, the temperature detect switch (TDS) (5) makes the oil inlet (201) be cut with the interior oil cooling passage (2)
Only.
8. piston connecting rod unit cooling body according to claim 7, it is characterised in that the temperature detect switch (TDS) (5) includes root
The temperature sensing material block (501) of expansion or shrinkage and screening coupled, for blocking the oil inlet (201) according to temperature change
Baffle plate (502).
9. a kind of engine, including cylinder body and the piston connecting rod unit cooling body that is arranged in the cylinder body, it is characterised in that institute
Piston connecting rod unit cooling body is stated as the piston connecting rod unit cooling body described in claim any one of 1-8.
10. a kind of vehicle, including car body and the engine that is arranged in the car body, it is characterised in that the engine is power
Profit requires the engine described in 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611207649.6A CN107489511A (en) | 2016-12-23 | 2016-12-23 | A kind of vehicle, engine and piston connecting rod unit cooling body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611207649.6A CN107489511A (en) | 2016-12-23 | 2016-12-23 | A kind of vehicle, engine and piston connecting rod unit cooling body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107489511A true CN107489511A (en) | 2017-12-19 |
Family
ID=60642330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611207649.6A Pending CN107489511A (en) | 2016-12-23 | 2016-12-23 | A kind of vehicle, engine and piston connecting rod unit cooling body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107489511A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031112A (en) * | 1978-09-06 | 1980-04-16 | Nohab Diesel Ab | Gudgeon pin |
| JPS5892441U (en) * | 1981-12-18 | 1983-06-22 | トヨタ自動車株式会社 | Internal combustion engine piston cooling system |
| CN102330617A (en) * | 2011-08-31 | 2012-01-25 | 李钢 | Adaptive variable compression engine piston |
| CN202165153U (en) * | 2011-07-16 | 2012-03-14 | 于建华 | Piston cooling oil passage |
| CN104121082A (en) * | 2013-04-26 | 2014-10-29 | 通用汽车环球科技运作有限责任公司 | Temperature dependent flow control for combustion engine piston squirters |
| CN204099025U (en) * | 2014-07-29 | 2015-01-14 | 宁波吉利罗佑发动机零部件有限公司 | A kind of engine piston cooling structure |
-
2016
- 2016-12-23 CN CN201611207649.6A patent/CN107489511A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031112A (en) * | 1978-09-06 | 1980-04-16 | Nohab Diesel Ab | Gudgeon pin |
| JPS5892441U (en) * | 1981-12-18 | 1983-06-22 | トヨタ自動車株式会社 | Internal combustion engine piston cooling system |
| CN202165153U (en) * | 2011-07-16 | 2012-03-14 | 于建华 | Piston cooling oil passage |
| CN102330617A (en) * | 2011-08-31 | 2012-01-25 | 李钢 | Adaptive variable compression engine piston |
| CN104121082A (en) * | 2013-04-26 | 2014-10-29 | 通用汽车环球科技运作有限责任公司 | Temperature dependent flow control for combustion engine piston squirters |
| CN204099025U (en) * | 2014-07-29 | 2015-01-14 | 宁波吉利罗佑发动机零部件有限公司 | A kind of engine piston cooling structure |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181214 Address after: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Applicant after: Beiqi Futian Automobile Co., Ltd. Address before: 100102 No.1 Courtyard Building, Futong East Street, Chaoyang District, Beijing Applicant before: Auto (China) Co., Ltd. |
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Application publication date: 20171219 |
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| RJ01 | Rejection of invention patent application after publication |