CN102705101A - Cooling system for internal-combustion engine piston - Google Patents
Cooling system for internal-combustion engine piston Download PDFInfo
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- CN102705101A CN102705101A CN2012101807076A CN201210180707A CN102705101A CN 102705101 A CN102705101 A CN 102705101A CN 2012101807076 A CN2012101807076 A CN 2012101807076A CN 201210180707 A CN201210180707 A CN 201210180707A CN 102705101 A CN102705101 A CN 102705101A
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- Prior art keywords
- piston
- cooling
- fluid
- connecting rod
- cavity
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Classifications
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- 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
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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
- F01P3/10—Cooling by flow of coolant through pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/22—Connection to driving members with connecting-rods, i.e. pivotal connections with universal joint, e.g. ball-joint
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- 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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/066—Connecting rod with passageways
Abstract
A cooling system for an internal-combustion engine piston includes a piston, a connecting rod, a cooling channel and a crankshaft, wherein the piston is provided with a piston housing and forms a piston cavity; the connecting rod includes a piston end part, a crankshaft end part and a main body part extended between the piston end part and the crankshaft end part, and the piston end part is operably accommodated in the piston cavity; the cooling channel is arranged in the connecting rod, and transmits cooling fluid from the crankshaft end part to the piston end part, the cooling fluid is introduced into the piston cavity from the cooling channel, so as to take away the heat from the piston and then cool the piston; and the crankshaft includes a channel for transmitting the cooling fluid to the connecting rod and a fluid outlet arranged in the piston housing and communicated with the piston cavity, and the cooling fluid in the piston cavity is guided away from the piston cavity through the fluid outlet.
Description
Technical field
The present invention relates to a kind of cooling system, particularly a kind of cooling system that supplies internal-combustion engine to use with when the pistons work, is taken away the heat of said piston apparatus through circulating of cooling fluid.
Background technique
Present internal-combustion engine need carry out the knocking fuel acting under increasingly high temperature, main cause is following:
Emission standard to internal-combustion engine requires more and more stricter at first, in the world.Internal-combustion engine must be to reduce the discharging of pollutant to greatest extent, and this just needs the burning in the internal-combustion engine very abundant.Significantly, this just requires to burn and must under higher temperature, carry out.
Internal-combustion engine need be in second reason of hot operation, and the manufacturer always attempts to improve the performance gain of motor, reduces engine capacity and keeps its power and efficient can not reduce again.
The manufacturers of internal-combustion engine once attempted making engine piston through lightweight alloy such as aluminum alloy in the past.Yet the shortcoming of aluminum alloy is can not bear too high temperature because of the lower melting temperature of aluminum alloy.In other words the piston of aluminum alloy manufacturing can not satisfy increasingly high temperature requirement at present under no effective cooling means.
In order to address this problem; The manufacturer of internal-combustion engine has made combination of steel roof aluminum piston skirt; But this piston is very difficult to be made and costs an arm and a leg owing to steel causes with the different expansivitys of aluminium, and all-steel piston has adverse effect because of preponderance to the performance and the efficient of internal-combustion engine again.
When continuing to use light-alloy piston such as all-aluminium piston, just must there be an effective cooling system that piston head is cooled off.Otherwise motor can make the very fast ground of piston reach melting point because of adiabatic.
Summary of the invention
The invention has the advantages that, a kind of cooling system of internal combustion engine is provided, utilize the internal-combustion engine of piston alternating motion work to use,, take away the heat of said piston through circulating of cooling fluid with when the said pistons work for all.
Another advantage of the present invention is; A kind of cooling system of internal combustion engine is provided; Realize the cooling in the course of the work of said piston; Thereby make the piston that adopts lightweight alloy such as aluminum alloy material to make satisfy the internal-combustion engine requirement that knocking fuel does work under higher temperature, reduced the manufacture difficulty and the cost of piston.
Another advantage of the present invention is, a kind of cooling system of internal combustion engine is provided, and said cooling system can be realized the cooling of said piston, thereby burning is more abundant under higher temperature work, reduces the waste discharge of said internal-combustion engine.
Another advantage of the present invention is, a kind of cooling system of internal combustion engine is provided, and said cooling can realize the cooling of said piston.Thereby the height dimension of said internal-combustion engine can reduce to greatest extent, does not have overheated problem simultaneously.
Another advantage of the present invention is, a kind of cooling system of internal combustion engine is provided, and through circulating of cooling fluid, it is lubricated to strengthen the link rod head that connects piston, improves the performance of internal-combustion engine.
Therefore, the present invention provides a kind of cooling system, uses for an internal combustion engine device, and said cooling system comprises:
One piston, said piston is supported in said internal combustion engines movingly, and said piston comprises a piston shell and in said piston shell, form a piston cavity;
One connecting rod, said connecting rod comprises a pistons end, and a crankshaft end and a main part, said pistons end operationally are contained in the said piston cavity of said piston, and said main part extends between said pistons end and the said crankshaft end:
One bent axle, said bent axle are connected in the said crankshaft end of said connecting rod;
One is arranged on the cooling channel in the said connecting rod; Cooling fluid with a prearranging quatity is sent to said pistons end from said crankshaft end; Wherein said cooling fluid gets into said piston cavity from the guiding of said cooling channel; Wherein said cooling fluid is used for taking away from said piston the heat of a prearranging quatity, thereby cools off said piston; With
The outlet of one fluid, said fluid output is arranged on the said piston shell and with said piston cavity and is communicated with, and the said cooling fluid that wherein is positioned at said piston cavity leaves said piston cavity through said fluid output guiding.
Description of drawings
Fig. 1 is the sectional view of a cooling system according to a preferred embodiment of the invention.
Fig. 2 is the plan view of connecting rod bowl-type pistons end of the cooling system of the above-mentioned preferred embodiment according to the present invention.
Fig. 3 is the front view of the spacing lock ring of the cooling system of above-mentioned preferred embodiment according to the present invention.
Fig. 4 is the spacing lock ring plan view of the cooling system of the above-mentioned preferred embodiment according to the present invention.
Fig. 5 is the rear view of the spacing lock ring of the cooling system of above-mentioned preferred embodiment according to the present invention.
Fig. 6 flows to schematic representation for the cooling fluid of the cooling system of above-mentioned preferred embodiment according to the present invention.
Embodiment
As Fig. 1 to shown in Figure 6 be according to a preferred embodiment of the invention a cooling system, cool off being used for
One internal combustion engine device, wherein said cooling system comprise a piston 10.Said piston 10 supports movingly and is arranged in the said internal-combustion engine, and said piston 10 comprises a piston shell 11, formation one piston cavity 12 in the said piston shell 11.Said cooling system comprises a connecting rod 20; Said connecting rod 20 has a pistons end 21; One crankshaft end 22; With a main part 23, said pistons end 21 operationally is contained in the said piston cavity 12 of said piston 10, and said main part 23 extends between said pistons end 21 and the said crankshaft end 22.
Said cooling system also comprises a bent axle 30, is connected in the said crankshaft end 22 of said connecting rod 20.Said bent axle 30 has passage 31, and said bent axle 30 is positioned in the crankcase, and crankcase stores cooling fluid.
Said cooling system comprises a cooling channel 41 and fluid output 42 and 112, for when said piston 10 is worked, cools off said piston 10.
More specifically; Said cooling channel 41 is arranged in the said connecting rod 20; Cooling fluid with a prearranging quatity is sent to said pistons end 21 from said crankshaft end 22, and wherein said cooling fluid flows into said cooling channel 41 from the said passage 31 of said bent axle 30, thereby gets into said piston cavity 12 via 41 guidings of said cooling channel; Through the said fluid output 42 that is connected with piston cavity 12 and be arranged on the said piston shell 11 and the fluid output 112 that is communicated with said piston cavity 12; Said piston cavity 12 is left in said cooling fluid guiding, and the heat that said piston 10 produces is taken away by said cooling fluid; Wherein said cooling fluid is used for taking away from said piston 10 heat of a prearranging quatity, thereby when internal combustion engine, said piston apparatus is cooled off effectively.
According to a preferred embodiment of the invention; Said piston 10 further comprises a head cap 13; Said head cap 13 is formed in the said piston shell 11, and said piston 10 has a piston apical cap 111, and the whole downwards said piston apical cap 111 from said piston 10 of said head cap 13 extends into said piston cavity 12; The cross section of wherein said head cap 13 is waveform or other shapes, to form the cavity volume 14 of a correspondence at the lower surface of said head cap 13.What deserves to be mentioned is that the said pistons end 21 of said connecting rod 20 has the sectional shape of an arc section with the said head cap 13 of correspondence, the said pistons end 21 of said connecting rod 20 is operably connected to the said head cap 13 of said piston 10.
As shown in Figure 2; Said connecting rod 20 also has a plurality of fluid splitter boxs 212; Said a plurality of fluid splitter box 212 is formed on the said pistons end 21 of said connecting rod 20 each other with interval, and wherein said cooling fluid is guided and gets into said a plurality of fluid splitter boxs 212.What deserves to be mentioned is that every said fluid splitter box 212 has an arc section.
Said piston 10 also has an annular cooling chamber 121, and said annular cooling chamber 121 is positioned at below the said piston apical cap 111.Said annular cooling chamber 121 is connected through said a plurality of fluid splitter boxs 212 with said cavity volume 14.Thereby when said cooling fluid when said cavity volume 14 gets into said annular cooling chamber 121, said cooling fluid cools off said piston apical cap 111.What deserves to be mentioned is that said annular cooling chamber 121 also provides enough spaces, free therein movable for said pistons end 21.
That is to say; Between the said pistons end 21 of said connecting rod 20 and said head cap 13, form cooling chamber; Said cooling fluid is guided and gets into said cooling chamber to cool off said head cap 13; And the mechanical motion to said piston 10 and said connecting rod 20 provides lubricated, and said then cooling fluid gets into said annular cooling chamber 121 through a plurality of said fluid splitter boxs 212, to the cooling that circulates of said piston 10 tops.
In order in said piston cavity 12, to support said connecting rod 20; Said piston 10 also comprises a plurality of spacing lock rings 15; Said a plurality of spacing lock ring 15 combine and assemble are in said piston cavity 12; And be positioned at said pistons end 21 bottoms of said connecting rod 20, and wherein said pistons end 21 is sandwiched between said spacing lock ring 15 and the said head cap 13 with the sandwich mode, thus said pistons end 21 is able to firmly be installed in the said piston cavity 12.
In this preferred embodiment, said piston 10 comprises two spacing lock rings 15, and butt joint can form a domain, and it is contained in the piston 10 through encircling screw thread.Said two spacing lock ring 15 usefulness screws 150 are positioned in the said piston 10, thereby said connecting rod 20 firmly is connected with said piston 10.What deserves to be mentioned is that every said spacing lock ring 15 has an arc contact surface 151, with consistent with the lower surface of the said pistons end 21 of said connecting rod 20.
In addition; Like Fig. 3 and shown in Figure 4; Every said spacing lock ring 15 also comprises the transmission passage 152 that is formed in the arc contact surface 151, thereby leaves said piston shell 11 through the said cooling fluid in the said annular cooling chamber 121 of said transmission passage 152 guidings, gets back to said crankcase.Simultaneously, said pistons end 21 is lubricated with said spacing lock ring 15 surfaces.And said cooling fluid splashes on the internal surface of skirt of said piston 10, thereby further is beneficial to the cooling of said piston apparatus.
Every said spacing lock ring 15 outer surface tops also have a setting circle groove 153 and a plurality of vertical slots 154 above that; Said vertical slots 154 is communicated with said piston cavity 121, thereby makes said cooling fluid flow to said circle groove 153 through said vertical slots 154.
Said piston shell 11 also has a plurality of fluid passages 112; Corresponding arrangement is distinguished with circle groove 153 positions of said spacing lock ring 15 in wherein said a plurality of fluid passage 112, thereby said cooling fluid can leave said piston shell 11 from said fluid passage 112.Thereby lubricated and cooling piston outer skirt.
In addition, every said spacing lock ring 15 also has a plurality of vertical holes 155 in outer lower portion, to allow to discharge unnecessary cooling fluid.
Said piston 10 also comprises a compression ring 113, one seal rings 114 and is positioned at the oil ring 115 on the Lower Half of piston skirt, to guarantee the correct position of said piston skirt in cylinder.Said piston 10 has a plurality of through holes 116 at said oil ring groove upper bottom surface, gets in the said piston 10 with the cooling fluid that allows the piston skirt outer surface, thereby guarantees preferable cooling and lubrication through circulating of said cooling fluid.
Because said piston 10 does not have traditional wrist pin, the linear expansion on the piston unspecified angle direction all is the same, so the piston skirt is the same unlike conventional piston, but real perfectly circular.
Because the pistons end 21 of said connecting rod 20 is not a tubulose; There is not wrist pin; Therefore said piston 10 said piston head caps 13 positions can be low the position in the 21 concave surface centers of circle, said connecting rod piston end, thereby under same travel condition, the length of motor can reduce.
Said connecting rod 20 inside comprise vertical cooling channel 41, one ends and lead to pistons end 21, one ends and lead to crankshaft end 22, under certain pressure, allow the passage 31 of cooling fluid in the bent axle 30 longitudinally passage 41 flow to the cavity volume 14 of piston 10.The said passage 41 because said cooling fluid is flowed through is so said connecting rod 20 is also cooled off by said cooling fluid.
Said cooling system 40 also comprises a check valve 43; Said check valve 43 is arranged on said pistons end 21 centers of said connecting rod 20; 41 ends, said longitudinally cooling channel; And said check valve 43 is connected with said cooling channel 41, thereby avoids said cooling fluid to go back to said cooling channel 41 from said cavity volume 14 adverse currents.
What deserves to be mentioned is that if piston head has spiracular furrow, a kind of piston 10 rotary limit devices that prevent can add this system.The restricted guidance device of said piston 10 can be by restraining groove 50 and slide guide 51, or restraining groove 50 and ball 51, is assemblied on the following convex surface of the said pistons end 21 of bowl-type and said piston head cap 13 of said connecting rod 20.
What deserves to be mentioned is; Said cooling fluid continues cooling channel 41 and is guided said cavity volume 14 of entering and said annular cooling chamber 121; Leave said piston 10 through said fluid output 42 and 112 guidings again and finally return said crankcase, mobile cooling fluid is taken away a certain amount of heat, thereby makes said piston 10 coolings; Therefore said cooling fluid is accomplished two functions in the present invention, promptly cools off and lubricates.
According to a preferred embodiment of the invention, the workflow of cooling system of the present invention is as follows as shown in Figure 6:
1) externally under the pressure effect of pump, cooling fluid gets into the said cooling channel 41 of said connecting rod 20 from the crank channel 31 of said bent axle 30;
2) cooling fluid in the said cooling channel 41 arrives the said bowl-type pistons end 21 of said connecting rod 20 through said check valve 43, is full of said cavity volume 14 then;
3) cooling fluid is assigned between the bowl-type pistons end 21 and said piston head cap 13 of said connecting rod 20 simultaneously, and enters into said annular cooling chamber 121 through the splitter box 212 on said bowl-type pistons end 21 concave surfaces;
4) a cooling fluid part flows back to said crankcase through the said transmission passage 152 on said spacing lock ring 15 concave surfaces in the said annular cooling chamber 121; A part flows into the vertical slots 154 and circle groove 153 on said spacing lock ring 15 outer surfaces; And flowing to outer surface of piston through a plurality of said fluid passages 112 that are positioned at below the said seal ring 114, cooling fluid can flow to said piston skirt internal surface through a plurality of vertical hole 155 on the said spacing lock ring 15 simultaneously;
5) cooling fluid flows to said piston shell skirt section 11 outer surfaces from said a plurality of fluid passages 112; Then; Said cooling fluid is further got back to piston 10 through being positioned at above the oil ring groove upper surface oil ring 115 said a plurality of through holes 116, finally flows back to the crankcase of motor.
One skilled in the art will understand that the embodiments of the invention shown in foregoing description and the accompanying drawing are only as not limiting the present invention for example.
This shows that the present invention's purpose is complete and effectively be achieved.Function of the present invention and structural principle are showed in an embodiment and are explained, are not deviating under the said principle, and mode of execution can be done any modification.So, present invention includes all distortion mode of executions based on claim spirit and claim scope.
Claims (27)
1. the cooling means of a piston, said piston is supported in an internal combustion engines movingly, and said piston comprises a piston shell and in said piston shell, form a piston cavity, it is characterized in that; Said method comprises the steps:
(a) cooling fluid of one prearranging quatity is sent to a pistons end of said connecting rod from a crankshaft end of said connecting rod through being arranged at a cooling channel in the connecting rod; Wherein said connecting rod also comprises a main part; Said main part extends between said pistons end and the said crankshaft end, and said pistons end operationally is contained in the said piston cavity of said piston;
(b) the said cooling fluid of guiding gets into said piston cavity from said cooling channel, thereby cools off said piston with the heat of taking away a prearranging quatity from said piston through said cooling fluid; With
(c) guide the said cooling fluid that is positioned at said piston cavity and leave said piston cavity through fluid outlet, wherein said fluid output is connected with said piston cavity.
2. cooling means as claimed in claim 1 is characterized in that, also comprises a step: get into the said cooling channel in the said connecting rod through the said cooling fluid of the channel lead that is arranged at a said bent axle.
3. according to claim 1 or claim 2 cooling means; It is characterized in that; Also comprise a step: said piston forms a head cap, and said head cap is positioned at said piston shell, and the whole downwards piston apical cap from said piston shell of said head cap extends into said piston cavity; The cross section of wherein said head cap is a waveform, in the said lower surface of said head cap, to form the cavity volume of a correspondence.
4. cooling means as claimed in claim 2 is characterized in that, also comprises a step: said cooling fluid is sent to the said cavity volume under the said head cap from said bent axle, and the cooling channel of wherein said cooling system extends longitudinally in said connecting rod.
5. cooling means as claimed in claim 3 is characterized in that, also comprises a step: said cooling fluid is sent to the said cavity volume under the said head cap from said bent axle, and the cooling channel of wherein said cooling system extends longitudinally in said connecting rod.
6. cooling means as claimed in claim 3; It is characterized in that; Also comprise a step: stop said cooling fluid to go back to said cooling channel from said cavity volume adverse current through a check valve; Said check valve is arranged on the said pistons end of said connecting rod, and said check valve is connected with said cavity volume.
7. cooling means as claimed in claim 5; It is characterized in that; Also comprise a step: also comprise a step: stop said cooling fluid to go back to said cooling channel from said cavity volume adverse current through a check valve; Said check valve is arranged on the said pistons end of said connecting rod, and said check valve is connected with said cavity volume.
8. cooling means as claimed in claim 7; It is characterized in that; Also comprise a step: guide said cooling fluid and get into an annular cooling chamber through at least one fluid splitter box on the said connecting rod from said cavity volume; Wherein said at least one fluid splitter box is formed on the said pistons end of said connecting rod each other with interval, and said annular cooling chamber is positioned at below the piston apical cap, thereby cools off said piston pileum.
9. cooling means as claimed in claim 8; It is characterized in that; Also comprise a step: leave said piston shell through the said cooling fluid of at least one transmission channel lead; Flowing back into a crankcase, wherein said transmission passage is arranged on the arc contact surface of two spacing lock rings of said piston cavity each other with interval, and said two spacing lock rings butt joints are to form a domain.
10. cooling means as claimed in claim 9; It is characterized in that; Also comprise a step: guide said cooling fluid and get into a circle groove through at least one vertical slots that is arranged on every said spacing lock ring outer surface top, wherein said vertical slots is communicated with said annular cooling chamber, and said piston shell also has at least one fluid passage; The corresponding arrangement in wherein said fluid passage with the position of said circle groove, thus said cooling fluid is able to flow to said outer surface of piston.
11. cooling means as claimed in claim 10 is characterized in that, also comprises a step: guide said cooling fluid and flow back to said piston shell from an at least one through hole, wherein said through hole is formed at the oil ring upper surface of said piston shell bottom.
12. cooling means as claimed in claim 11 is characterized in that, also comprises a step: guide said cooling fluid from least one vertical orifice flow to the piston skirt internal surface, wherein said hard straight hole is formed at said every spacing lock ring outer lower portion.
13. a cooling system, said cooling system are used for an internal combustion engine device effect, it is characterized in that said cooling system comprises:
One piston, said piston is supported in said internal combustion engines movingly, and said piston comprises a piston shell and in said piston shell, form a piston cavity;
One connecting rod, said connecting rod comprises a pistons end, and a crankshaft end and a main part, said pistons end operationally are contained in the said piston cavity of said piston, and said main part extends between said pistons end and the said crankshaft end;
One bent axle, said bent axle are connected in the said crankshaft end of said connecting rod;
One is arranged on the cooling channel of said connecting rod; Cooling fluid with a prearranging quatity is sent to said pistons end from said crankshaft end; Wherein said cooling fluid gets into said piston cavity from the guiding of said cooling channel; Wherein said cooling fluid is used for taking away from said piston the heat of a prearranging quatity, thereby makes the said piston of cooling;
The outlet of one fluid, said fluid output is arranged on the said piston shell and with said piston cavity and is communicated with, and the said cooling fluid that wherein is positioned at said piston cavity leaves through said fluid output guiding.
14. cooling system as claimed in claim 13 is characterized in that, said bent axle has a passage, and said cooling fluid gets into said cooling channel from said crank channel.
15. cooling system as claimed in claim 14; It is characterized in that said piston shell comprises a piston apical cap, said piston forms a head cap; Said head cap is positioned at said piston shell; And the whole downwards said piston apical cap from said piston shell of said head cap extends into said piston cavity, and the cross section of wherein said head cap is a waveform, in the said lower surface of said head cap, to form the cavity volume of a correspondence.
16. cooling system as claimed in claim 15 is characterized in that, said piston also has an annular cooling chamber, and said annular cooling chamber is positioned at below the said piston apical cap, and said annular cooling chamber is connected with said cavity volume.
17. cooling system as claimed in claim 16 is characterized in that, said pistons end has at least one fluid splitter box, and said annular cooling chamber is connected through said fluid splitter box with said cavity volume.
18. cooling system as claimed in claim 14; It is characterized in that; Said piston also comprises two spacing lock rings; Said two spacing lock ring butt joints are to form a domain, and wherein said pistons end is sandwiched between said spacing lock ring and the said head cap with the sandwich mode, thereby said pistons end is able to firmly be installed in the said piston cavity.
19. cooling system as claimed in claim 17; It is characterized in that; Said piston also comprises two spacing lock rings; Said two spacing lock ring butt joints are to form a domain, and wherein said pistons end is sandwiched between said spacing lock ring and the said head cap with the sandwich mode, thereby said pistons end is able to firmly be installed in the said piston cavity.
20. cooling system as claimed in claim 19 is characterized in that, every said spacing lock ring has an arc contact surface, adapts with the said lower surface with the said pistons end of said connecting rod.
21. cooling system as claimed in claim 20; It is characterized in that; Every said spacing lock ring also comprises the transmission passage that is formed on the said arc contact surface, gets into said annular cooling chamber thereby leave said cavity volume through the said cooling fluid of said transmission channel lead.
22. cooling system as claimed in claim 21; It is characterized in that; Every said spacing lock ring outer surface top also has a setting circle groove and at least one vertical slots above that; Said vertical slots is communicated with said annular cooling chamber, thereby makes said cooling fluid flow to said circle groove through said vertical slots.
23. cooling system as claimed in claim 22; It is characterized in that; Said piston shell also has at least one fluid passage; The corresponding arrangement respectively of the circle groove position of wherein said fluid passage and said spacing lock ring, thus said cooling fluid is able to leave from said fluid passage and flows to said outer surface of piston.
24. cooling system as claimed in claim 23 is characterized in that, said piston also comprises a compression ring, and a seal ring and be positioned at the oil ring on the Lower Half of piston skirt is to guarantee the correct position of said piston skirt in cylinder.
25. cooling system as claimed in claim 24 is characterized in that, said piston has at least one through hole at the oil ring groove upper surface, gets in the said piston cavity with the cooling fluid that allows the piston skirt outer surface.
26. cooling system as claimed in claim 25 is characterized in that, the cooling channel of said cooling system extends longitudinally in said connecting rod, and is arranged in and is used for said cooling fluid is sent to from said bent axle the said piston cavity of said piston shell.
27. cooling system as claimed in claim 26; It is characterized in that; Said cooling system also comprises a check valve; Said check valve is arranged on the said pistons end of said connecting rod, and said check valve is connected with said cooling channel, thereby avoids said cooling fluid to go back to said cooling channel from said cavity volume adverse current.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101807076A CN102705101A (en) | 2012-05-16 | 2012-05-16 | Cooling system for internal-combustion engine piston |
| PCT/CN2012/084356 WO2013170593A1 (en) | 2012-05-16 | 2012-11-09 | Cooling system for internal combustion engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101807076A CN102705101A (en) | 2012-05-16 | 2012-05-16 | Cooling system for internal-combustion engine piston |
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| Publication Number | Publication Date |
|---|---|
| CN102705101A true CN102705101A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101807076A Pending CN102705101A (en) | 2012-05-16 | 2012-05-16 | Cooling system for internal-combustion engine piston |
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|---|---|
| CN (1) | CN102705101A (en) |
| WO (1) | WO2013170593A1 (en) |
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| DE102022108375B3 (en) | 2022-04-07 | 2023-05-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Pistons with functionally optimized piston cooling |
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| DE102017107706A1 (en) * | 2017-04-10 | 2018-10-11 | Avl List Gmbh | Length-adjustable connecting rod with a cylinder-piston unit with anti-rotation |
| DE102018201556A1 (en) * | 2018-02-01 | 2019-08-01 | Volkswagen Aktiengesellschaft | Reciprocating piston for a reciprocating internal combustion engine and use of a reciprocating piston in a reciprocating internal combustion engine |
| DE102018208898A1 (en) * | 2018-06-06 | 2019-12-12 | Volkswagen Aktiengesellschaft | Reciprocating piston for a reciprocating internal combustion engine and use of a reciprocating piston in a reciprocating internal combustion engine |
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| WO2013170593A1 (en) * | 2012-05-16 | 2013-11-21 | 郑凌 | Cooling system for internal combustion engine piston |
| CN103573375A (en) * | 2013-10-28 | 2014-02-12 | 北京理工大学 | Free-piston internal-combustion generator oscillation driving piston cooling system |
| CN103573375B (en) * | 2013-10-28 | 2015-12-02 | 北京理工大学 | A kind of free-piston internal combustion engine generator vibration drive-type piston looling system |
| WO2015069421A1 (en) * | 2013-11-08 | 2015-05-14 | Achates Power, Inc. | Lubricating configuration for maintaining wristpin oil pressure in a two-stroke cycle, opposed-piston engine |
| US9038593B1 (en) | 2013-11-08 | 2015-05-26 | Achates Power, Inc. | Lubricating configuration for maintaining wristpin oil pressure in a two-stroke cycle, opposed-piston engine |
| US9470136B2 (en) | 2014-03-06 | 2016-10-18 | Achates Power, Inc. | Piston cooling configurations utilizing lubricating oil from a bearing reservoir in an opposed-piston engine |
| US10208704B2 (en) | 2014-03-06 | 2019-02-19 | Achates Power, Inc. | Piston cooling configurations utilizing lubricating oil from a bearing reservoir in an opposed-piston engine |
| CN106050386A (en) * | 2015-04-16 | 2016-10-26 | 福特环球技术公司 | System for piston cooling |
| US10487775B2 (en) | 2015-04-16 | 2019-11-26 | Ford Global Technologies, Llc | Systems and methods for piston cooling |
| CN105221232A (en) * | 2015-11-05 | 2016-01-06 | 重庆驰龙摩托车配件有限公司 | A kind of motorcycle twin cylinder engine piston cooling device |
| CN109944712A (en) * | 2017-12-20 | 2019-06-28 | 曼卡车和巴士股份公司 | Device and method for lubricating connecting rod bottom-end bearing |
| US11359525B2 (en) | 2017-12-20 | 2022-06-14 | Man Truck & Bus Ag | Device and method for lubricating a connecting rod bearing |
| CN114041009A (en) * | 2019-04-04 | 2022-02-11 | 考克斯传动有限公司 | Outboard motor for ship with piston cooling channel |
| CN114041009B (en) * | 2019-04-04 | 2024-02-23 | 考克斯传动有限公司 | Marine outboard motor with piston cooling gallery |
| DE102022108375B3 (en) | 2022-04-07 | 2023-05-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Pistons with functionally optimized piston cooling |
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| WO2013170593A1 (en) | 2013-11-21 |
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