CN109441609A - A kind of piston cooling injection system - Google Patents
A kind of piston cooling injection system Download PDFInfo
- Publication number
- CN109441609A CN109441609A CN201811554849.8A CN201811554849A CN109441609A CN 109441609 A CN109441609 A CN 109441609A CN 201811554849 A CN201811554849 A CN 201811554849A CN 109441609 A CN109441609 A CN 109441609A
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- Prior art keywords
- oil
- oil duct
- control
- duct
- perforation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
-
- 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
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of piston cooling injection systems, including main oil gallery, secondary oil duct, the first control oil duct, the second control oil duct, converging channel, oil injection mechanism, temperature-sensitive control mechanism, the first connection oil duct, the second connection oil duct to connect oil duct with secondary oil duct；Main oil gallery is connected to by the first connection oil duct with the first control oil duct；Main oil gallery is connected to by the second connection oil duct with the second control oil duct；Second control oil duct with first control oil duct with converge oil duct and be connected to；Converge oil duct and lead to and passes to secondary oil duct；Oil injection mechanism is connected to secondary oil duct, and temperature-sensitive control mechanism is separately positioned in the first control oil duct and the second control oil duct.The present invention is provided with two temperature-sensitive control mechanisms, is separately fixed in the first control oil duct and the second control oil duct, and at parallel arrangement in oil passage.When it is therein break down all the way cause oil passage that cannot open when, there are also spare all the way, guarantee the safe and reliable cooling to piston.
Description
Technical field
The present invention relates to technical field of engines, especially a kind of piston cooling injection system.
Background technique
With the technological trend of pressurization miniaturization, the specific power of automobile engine is increasing, and consequent is burning
The increase of room thermic load.Therefore, forced jet cooling is carried out at a kind of scheme of standard configuration to in-engine piston.
But can neither be insufficient to the cooling capacity of piston, it can not be excessive.It is cooling insufficient, will lead to piston crown scorification and
Pinking；Undercooling can lose the thermal efficiency again, reduce lubricating oil viscosity to increase friction loss.The ideal cooling spray of piston
The system of penetrating should be the cooling of timely and appropriate discovery according to demand, high reliablity, and consider cost performance.
Most common technical solution is controlled based on pressure, and pressure-control valve is arranged before cooling nozzles, works as oil
Pressure rises to certain value, the spring pressure in oil pressure counter pressure-control valve, to open the channel realization for leading to cooling nozzles
To the Oil injection cooling of piston.Oil pressure is established by oil liquid pump, the revolving speed strong correlation that oil pressure is only pumped with oil liquid, that is, only
With the revolving speed strong correlation of engine.But under some operating conditions, the revolving speed of engine is higher, and oil pressure is enough to overcome spring pressure at this time
Injection is realized, it is likely that load is smaller.The thermic load of piston and little at this time, it is not necessary that piston is cooled down.This
In the case of kind, the piston cooling injection system based on pressure control will lead to the sub-cooled to piston, sacrifice the thermal efficiency and
Economy.Spray cooling can not be carried out to piston moderately and at the right moment using oil pressure scheme.
Summary of the invention
The object of the present invention is to provide a kind of piston cooling injection systems, and to solve deficiency in the prior art, it can
Moderately and at the right moment to piston carry out spray cooling.
The present invention provides a kind of piston cooling injection systems, including main oil gallery, secondary oil duct, the first control oil duct, second
Control oil duct, converging channel, oil injection mechanism, temperature-sensitive control mechanism, the first connection oil duct, the second connection oil duct are connected with secondary oil duct
Oil duct；
The main oil gallery is connected to by the first connection oil duct with the first control oil duct；The main oil gallery connects by second
Oil duct is connect to be connected to the second control oil duct；The second control oil duct and the first control oil duct converge oil with described
Road connection；It is described converge oil duct oil duct connected by the secondary oil duct be connected to the secondary oil duct；The oil injection mechanism is set
To be connected to the secondary oil duct, to the intracorporal piston Oil injection cooling of cylinder；
The quantity of the temperature-sensitive control mechanism is two, and two temperature-sensitive control mechanisms are separately positioned on described first
In control oil duct and the second control oil duct with control the second control oil duct with it is described converge on-off that oil duct is connect or
Control the first control oil duct and the on-off converging oil duct and connecting.
Piston cooling injection system as described above, wherein optionally, the temperature-sensitive control mechanism includes valve seat, branch
Frame, push rod, inductor component, valve closure, return unit and push rod top plate；
In the first control oil duct, the first control oil duct is separated into upper control by the valve seat for the valve seat setting
Liquefaction road and lower control oil duct；Valve valve seat through-hole is provided on the valve seat, the valve valve seat through-hole is connected to the upper control
Liquefaction road and lower control oil duct；
The bracket is fixed on the valve seat, and the push rod top plate is fixed on the valve seat, and the push rod top plate
The two sides of the valve seat are oppositely arranged on the bracket；
The inductor component is connect by sebific duct with the push rod, and the sebific duct is wrapped in the outside of the push rod.
Piston cooling injection system as described above, wherein optionally, the return unit is reset spring, described multiple
The first end of position spring offsets with the valve closure, and the second end of the reset spring offsets with the bracket.
Piston cooling injection system as described above, wherein optionally, the temperature-sensitive control mechanism further includes infiltration
Hole, the permeability hole are arranged to be used for being connected to the upper control oil duct and the lower control oil duct；
It is provided with infiltration oil export on the side wall of the lower control oil duct, the infiltration oil export is for permeating permeability hole
The oil discharge entered.
Piston cooling injection system as described above, wherein optionally, the permeability hole is waist-shaped hole, waist-shaped hole
The long 3mm in hole, Kong Kuan 1.5mm；The aperture of the infiltration oil export is 2mm.
Piston cooling injection system as described above, wherein optionally, the oil injection mechanism includes sprinkler body, nozzle, determines
Bit slice, perforated bolt, oil spout spool, oil spout spring and limited block；
The sprinkler body is fixed on cylinder body by the locating piece, and the perforated bolt is fixed on sprinkler body, perforated bolt
On be provided with the first perforation and second perforation, it is described first perforation with second perforated vertical intersection.
The first end of first perforation is connected to fuel injection passage, and fuel injection passage is connected to secondary oil duct；It is set on the nozzle
It is equipped with nozzle passage, first perforation is connected to the second perforation, and second perforation is connected to the nozzle passage；
The oil spout spool activity is in first perforation to block or open the first perforation and biperforate connection
Channel；
The oil spout spring first end offsets with the oil spout spool, the second end of oil spout spring and the limited block phase
It supports.
Piston cooling injection system as described above, wherein optionally, the oil injection mechanism be provided with altogether it is multiple, it is more
A oil injection mechanism and corresponding cylinder cylinder holes position are opposite one by one.
Compared with prior art, the present invention be provided with two temperature-sensitive control mechanisms, be separately fixed at the first control oil duct and
In second control oil duct, and at parallel arrangement in oil passage.When therein break down all the way causes oil passage cannot
When opening, there are also spare all the way, safe and reliable cooling of the guarantee to piston.
The present invention, which also passes through setting permeability hole and permeates oil export, can guarantee the timely true transmitting of oil liquid temperature, and
Temperature-sensitive control mechanism is carried out to continue preheating, when reaching oil liquid temperature control line so as to temperature, temperature-sensitive control can be opened in time
The valve of mechanism；
The present invention realizes the control of temperature using temperature-sensitive control mechanism, and the control of pressure is realized using oil injection mechanism,
The region more than oil liquid pressure control line, more than oil liquid temperature control line is realized by the double control based on pressure and temperature
In due course spray cooling is carried out to piston, has not only guaranteed the operating reliability of piston motion pair, but also not will lead to sub-cooled, it can
Moderately and at the right moment to piston carry out spray cooling.Be conducive to improve the temperature of lubricating oil to reduce friction loss, be conducive to mention
The temperature of high combustion chamber is also beneficial to reduce the consumption of lubricating oil, is conducive to discharge to improve the thermal efficiency.
Detailed description of the invention
Fig. 1 is the main view of piston cooling injection system provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view in the direction A-A of Fig. 1；
Fig. 3 is the cross-sectional view in the direction D-D of Fig. 1；
Fig. 4 is the cross-sectional view in the direction B-B of Fig. 1；
Fig. 5 is the cross-sectional view in the direction C-C of Fig. 1；
Fig. 6 is the partial enlarged view of Fig. 2；
Fig. 7 is the partial enlarged view of Fig. 4；
Fig. 8 is the structural schematic diagram of temperature-sensitive control mechanism in piston cooling injection system provided in an embodiment of the present invention；
Fig. 9 is the top view of temperature-sensitive control mechanism in piston cooling injection system provided in an embodiment of the present invention；
Description of symbols: 1- main oil gallery, 2- pair oil duct, 3- first control oil duct, control oil duct on 31-, control under 32-
Oil duct, 33- permeate oil export, and 4- second controls oil duct, and 5- converges oil duct, 6- oil injection mechanism, 61- sprinkler body, 62- nozzle, and 63- is fixed
Bit slice, the perforation of 631- nozzle, 64- perforated bolt, 65- nozzle spool, 66- nozzle springs, 67- limit hole, 7- temperature-sensitive control machine
Structure, 71- valve seat, 711- valve seat through-hole, 72- bracket, 73- push rod, 74- inductor component, 75- valve closure, 76- reset
Part, 77- push rod top plate, 78- permeability hole, the connection oil duct of 8- first, the connection oil duct of 9- second, 10- pair oil duct connect oil duct.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
The embodiment of the present invention: as shown in figs 1-9, a kind of piston cooling injection system, including main oil gallery 1, secondary oil duct 2,
First control oil duct 3, second control oil duct 4, converging channel 5, oil injection mechanism 6, temperature-sensitive control mechanism 7, first connect oil duct 8,
Second connection oil duct 9 connects oil duct 10 with secondary oil duct；
The main oil gallery 1 is connected to by the first connection oil duct 8 with the first control oil duct 3；The main oil gallery 1 passes through the
Two connection oil ducts 9 are connected to the second control oil duct 4；The second control oil duct 4 and the first control oil duct 3 are and institute
It states and converges the connection of oil duct 5；It is described converge oil duct 5 oil duct 10 connected by the secondary oil duct be connected to the secondary oil duct 2；The spray
Oil machine structure 6 is arranged to be connected to the secondary oil duct 2, to the intracorporal piston Oil injection cooling of cylinder；
The quantity of the temperature-sensitive control mechanism 7 is two, and two temperature-sensitive control mechanisms 7 are separately positioned on described the
Converge what oil duct 5 was connect in one control oil duct 3 and the second control oil duct 4 to control the second control oil duct 4 with described
On-off or control described first control oil duct 3 and the on-off converging oil duct 5 and connecting.It is logical by the control of temperature-sensitive control mechanism 7
Opening or closing for road improves system reliability of operation.
Oil liquid has respectively entered the first connection oil duct 7 and the second connection oil duct 8, the first connection oil by the outflow of main oil gallery 1
Road 7 is connected to the first control oil duct 3, and the second connection oil duct 8 is connected to the second control oil duct 4, the first control oil duct 3 and the second control
The oil liquid in liquefaction road 4 is imported into converge oil duct 5 and then connect oil duct 10 by secondary oil duct together enters secondary oil duct 2, oil liquid into
Enter into secondary oil duct 2 and then enters back into oil injection mechanism 6 to carry out Oil injection cooling to corresponding piston.Solely provided with two
Vertical oil duct flow circuits, the paralysis of entire cooling circuit caused by avoiding after an oil duct circuit is blocked, and make two heat
Quick control mechanism 7 is arranged in parallel, and improves system maintainability.
Specifically, the temperature-sensitive control mechanism 7 includes valve seat 71, bracket 72, push rod 73, inductor component 74, valve envelope
Closing member 75, return unit 76 and push rod top plate 77；
In the first control oil duct 3, the valve seat 71 separates the first control oil duct 3 for the setting of valve seat 71
At upper control oil duct 31 and lower control oil duct 32；Valve seat through-hole 711 is provided on the valve seat 71, the valve seat through-hole 711 connects
Lead to the upper control oil duct 31 and lower control oil duct 32；
The bracket 72 is fixed on the valve seat 71, and the push rod top plate 77 is fixed on the valve seat 71, and described
Push rod top plate 77 and the bracket 72 are oppositely arranged on the two sides of the valve seat 71；
The inductor component 74 is connect by sebific duct with the push rod 73, and the sebific duct is wrapped in the outer of the push rod 73
Side；
The thermo-sensitive materials such as paraffin are provided in inductor component 74, when oil temperature is higher than oil temperature control line, induction
Paraffin in device component 74 dissolves, and it is paraffin melting after formed liquid volume compared with solid-state when it is big.The turgor pressure of paraffin volume
The rubber tube being wrapped in around push rod 73 in contracting inductor component 74 makes its contraction.When rubber tube is shunk, push rod 73 can be produced
Raw thrust, push rod 73 have reaction force to rubber tube.Push rod 73 is unable to move relatively due to being fastenedly connected between valve seat 71,
It is also to be fastenedly connected between inductor component 26 and valve closure 75.Then under the action of reaction force, inductor is forced
Component 74 is far from valve seat 71, to open the valve seat through-hole 711 between valve seat 71 and valve closure 75.
The upper control oil duct 31, which is connected to oil liquid with lower control oil duct 32 and is entered by the first control oil duct 3, converges oil duct
5 then into oil injection mechanism 6.
And when the temperature of oil liquid is lower, thermo-sensitive material not remove by reflation, the then power acted on push rod 73 at this time
Pin, the direction that the restoring force of return unit 76 drives valve closure 76 to close valve seat through-hole 711 are mobile to block the valve seat
Through-hole 711.
Specifically, the return unit 76 is reset spring, the first end of the reset spring and the valve closure 75
It offsets, the second end of the reset spring offsets with the bracket 72.
In order to improve system reliability of operation, system is provided with two temperature-sensitive control mechanisms 7, is separately fixed at the first control
In liquefaction road 3 and the second control oil duct 4, and at parallel arrangement in oil passage.When therein break down all the way leads to oil
When liquid channel cannot open, there are also spare all the way, safe and reliable cooling of the guarantee to piston.And two-way simultaneously break down it is general
Rate is extremely low.
Further, the temperature-sensitive control mechanism 7 further includes permeability hole 78, and the permeability hole 78 is arranged to described in connection
Upper control oil duct 31 and the lower control oil duct 32 are so that the oil liquid in the first control oil duct 3 flows；The lower control
Infiltration oil export 33 is provided on the side wall in liquefaction road 32, the oil that the infiltration oil export 33 is used to infiltrate through permeability hole 78 is arranged
Out.Wherein the permeability hole 78 is waist-shaped hole, the long 3mm in the hole of waist-shaped hole, Kong Kuan 1.5mm；The aperture of the infiltration oil export 33
For 2mm.Oil liquid can be slowly overflowed to by the kidney slot in lower control oil duct 32, and the infiltration by being arranged on lower control oil duct 32
Saturating oil export overflows to oil sump.According to the universal principle of fluid, liquid, which only flows just, can be carried out effective biography of heat
It passs.Oil liquid can guarantee the timely true transmitting of oil liquid temperature by the slow overflow of permeability hole 78 and infiltration oil export 33,
And temperature-sensitive control mechanism 7 is carried out to continue preheating, when reaching oil liquid temperature control line so as to temperature, temperature-sensitive control can be opened in time
The valve seat through-hole 711 of mechanism 7 processed.And the size of permeability hole 78 and infiltration oil export 33 is all very little, even if there are overflow,
The pressure of entire lubricating system will not be caused to have big loss.
Further, the oil injection mechanism 6 includes sprinkler body 61, nozzle 62, locating plate 63, perforated bolt 64, oil spout spool
65, oil spout spring 66 and limited block 67；
The sprinkler body 61 is fixed on cylinder body by the locating piece 63, and the perforated bolt 64 is fixed on sprinkler body 61,
The first perforation and the second perforation are provided on perforated bolt 64, first perforation is with second perforated vertical intersection.
The first end of first perforation is connected to fuel injection passage, and fuel injection passage is connected to secondary oil duct 2；On the nozzle 62
It is provided with nozzle passage, first perforation is connected to the second perforation, and second perforation is connected to the nozzle passage；
65 activity of oil spout spool is in first perforation to block or open the first perforation and biperforate company
Connect road；
66 first end of oil spout spring offsets with the oil spout spool 65, the second end of oil spout spring 66 and the limit
Block 67 offsets.
Oil spout spool 65 blocks first perforation and leads to biperforate be connected under the action of oil spout spring 66
Road, while having blocked the communicating passage of the first perforation and nozzle passage.62 not oil spout of nozzle at this time.
As the oil pressure in fuel injection passage increases, the direction that oil pressure pushes oil spout spool 65 to close limited block 67 is mobile,
The first perforation is connected to the second perforation at this time, to link up the first perforation and nozzle passage.
The oil injection mechanism 6 is provided with multiple, multiple oil injection mechanisms 6 and corresponding cylinder cylinder holes position altogether
It is opposite one by one.
A kind of piston cooling injection system that the present invention announces is realized by the double control based on pressure and temperature in oil
Region more than hydraulic coupling control line, more than oil liquid temperature control line carries out in due course spray cooling to piston, using temperature-sensitive control
Mechanism processed realizes the control of temperature, and the control of pressure is realized using oil injection mechanism.Both guaranteed that the operating of piston motion pair could
By property, and it not will lead to sub-cooled, the temperature for being conducive to improve lubricating oil is conducive to improve burning to reduce friction loss
The temperature of room is also beneficial to reduce the consumption of lubricating oil, is conducive to discharge to improve the thermal efficiency.
For control based on temperature, system enables to temperature-sensitive control mechanism timely by cleverly designing permeability hole
And really feed back oil temperature.To sufficiently identify the cooling reliability of piston, what the system that greatly improves was run can
By property degree.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (7)
1. a kind of piston cooling injection system, it is characterised in that: including main oil gallery, secondary oil duct, the first control oil duct, the second control
Oil duct, converging channel, oil injection mechanism, temperature-sensitive control mechanism, the first connection oil duct, the second connection oil duct connect oil with secondary oil duct
Road；
The main oil gallery is connected to by the first connection oil duct with the first control oil duct；The main oil gallery passes through the second connection oil
Road is connected to the second control oil duct；The second control oil duct and the first control oil duct connect with the oil duct that converges
It is logical；It is described converge oil duct oil duct connected by the secondary oil duct be connected to the secondary oil duct；The oil injection mechanism be arranged to
The pair oil duct connection, to the intracorporal piston Oil injection cooling of cylinder；
The quantity of the temperature-sensitive control mechanism is two, and two temperature-sensitive control mechanisms are separately positioned on first control
In oil duct and the second control oil duct, converge the on-off or control that oil duct is connect to control the second control oil duct with described
Described first controls oil duct and the on-off converging oil duct and connecting.
2. piston cooling injection system according to claim 1, it is characterised in that: the temperature-sensitive control mechanism includes valve
Seat, bracket, push rod, inductor component, valve closure, return unit and push rod top plate；
In the first control oil duct, the first control oil duct is separated into upper control oil by the valve seat for the valve seat setting
Road and lower control oil duct；Valve valve seat through-hole, the valve valve seat through-hole connection upper control oil are provided on the valve seat
Road and lower control oil duct；
The bracket is fixed on the valve seat, and the push rod top plate is fixed on the valve seat, and the push rod top plate and institute
State the two sides that bracket is oppositely arranged on the valve seat；
The inductor component is connect by sebific duct with the push rod, and the sebific duct is wrapped in the outside of the push rod.
3. piston cooling injection system according to claim 2, it is characterised in that: the return unit is reset spring, institute
The first end and the valve closure for stating reset spring offset, and the second end of the reset spring offsets with the bracket.
4. piston cooling injection system according to claim 2, it is characterised in that: the temperature-sensitive control mechanism further includes seeping
Open-work, the permeability hole are arranged to be used for being connected to the upper control oil duct and the lower control oil duct；
Infiltration oil export is provided on the side wall of the lower control oil duct, what the infiltration oil export was used to infiltrate through permeability hole
Oil discharge.
5. piston cooling injection system according to claim 4, it is characterised in that: the permeability hole is waist-shaped hole, waist type
The long 3mm in the hole in hole, Kong Kuan 1.5mm；The aperture of the infiltration oil export is 2mm.
6. piston cooling injection system according to claim 1, it is characterised in that: the oil injection mechanism includes sprinkler body, spray
Mouth, locating plate, perforated bolt, oil spout spool, oil spout spring and limited block；
The sprinkler body is fixed on cylinder body by the locating piece, and the perforated bolt is fixed on sprinkler body, is set on perforated bolt
It is equipped with the first perforation and the second perforation, first perforation is with second perforated vertical intersection；
The first end of first perforation is connected to fuel injection passage, and fuel injection passage is connected to secondary oil duct；It is provided on the nozzle
Nozzle passage, first perforation are connected to the second perforation, and second perforation is connected to the nozzle passage；
The oil spout spool activity is in first perforation to block or open the first perforation and biperforate interface channel；
The oil spout spring first end offsets with the oil spout spool, and the second end of oil spout spring offsets with the limited block.
7. piston cooling injection system according to claim 6, it is characterised in that: the oil injection mechanism is provided with more altogether
A, multiple oil injection mechanisms and corresponding cylinder cylinder holes position are opposite one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554849.8A CN109441609B (en) | 2018-12-19 | 2018-12-19 | Piston cooling injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554849.8A CN109441609B (en) | 2018-12-19 | 2018-12-19 | Piston cooling injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441609A true CN109441609A (en) | 2019-03-08 |
| CN109441609B CN109441609B (en) | 2020-01-14 |
Family
ID=65559479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811554849.8A Active CN109441609B (en) | 2018-12-19 | 2018-12-19 | Piston cooling injection system |
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| Country | Link |
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| CN (1) | CN109441609B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886570A (en) * | 2010-06-02 | 2010-11-17 | 奇瑞汽车股份有限公司 | Piston cooling spray nozzle structure |
| CN102575614A (en) * | 2009-07-25 | 2012-07-11 | Ks科尔本施密特有限公司 | Method for cooling a piston and a cooled piston |
| CN102678250A (en) * | 2012-04-26 | 2012-09-19 | 长城汽车股份有限公司 | Engine piston cooling device |
| JP2017145757A (en) * | 2016-02-17 | 2017-08-24 | トヨタ自動車株式会社 | Internal combustion engine control device |
| JP2017180132A (en) * | 2016-03-28 | 2017-10-05 | いすゞ自動車株式会社 | Oil injection device |
-
2018
- 2018-12-19 CN CN201811554849.8A patent/CN109441609B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575614A (en) * | 2009-07-25 | 2012-07-11 | Ks科尔本施密特有限公司 | Method for cooling a piston and a cooled piston |
| CN101886570A (en) * | 2010-06-02 | 2010-11-17 | 奇瑞汽车股份有限公司 | Piston cooling spray nozzle structure |
| CN102678250A (en) * | 2012-04-26 | 2012-09-19 | 长城汽车股份有限公司 | Engine piston cooling device |
| JP2017145757A (en) * | 2016-02-17 | 2017-08-24 | トヨタ自動車株式会社 | Internal combustion engine control device |
| JP2017180132A (en) * | 2016-03-28 | 2017-10-05 | いすゞ自動車株式会社 | Oil injection device |
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| Publication number | Publication date |
|---|---|
| CN109441609B (en) | 2020-01-14 |
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