CN100467847C - Cylinder head with cooling passage system for reciprocating internal combustion engine - Google Patents
Cylinder head with cooling passage system for reciprocating internal combustion engine Download PDFInfo
- Publication number
- CN100467847C CN100467847C CNB031015913A CN03101591A CN100467847C CN 100467847 C CN100467847 C CN 100467847C CN B031015913 A CNB031015913 A CN B031015913A CN 03101591 A CN03101591 A CN 03101591A CN 100467847 C CN100467847 C CN 100467847C
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- Prior art keywords
- cooling channel
- cylinder head
- cooling
- nozzle
- vault
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- 238000001816 cooling Methods 0.000 title claims abstract description 165
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 11
- 239000000659 freezing mixture Substances 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 16
- 238000010304 firing Methods 0.000 claims description 15
- 239000000567 combustion gas Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000007921 spray Substances 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
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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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
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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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/024—Cooling cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
- F01P3/14—Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
-
- 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
- F01P3/12—Arrangements for cooling other engine or machine parts
- F01P3/16—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A cylinder head with cooling passage system for reciprocating internal combustion engine includes a roof-like part and a side part; a fitting opening mounted in the roof-like part for receiving the nozzle and leading fuel into a combustion chamber; a exhaust port mounted along the axes in the side part for receiving an exhaust valve; multiple roof-like cooling passages extending in the exhaust port direction, at least two roof-like cooling passages have inlet/outlet for coolant; a valve cooling passage extending along the exhaust port. The inlet of the roof-like cooling passage is set farther away from the exhaust port that the outlet, at least one outlet of the roof-like cooling passage is connected to a valve cooling passage to make the coolant can be fed continuously through the roof-like passage and valve cooling passage. At least one nozzle cooling passage extends along the fitting opening, at least one outlet of the roof-like cooling passage is connected to a nozzle cooling passage to make the coolant can be fed continuously through the roof-like passage and nozzle cooling passage.
Description
Technical field
The present invention relates to a kind of cylinder head that is used for reciprocating internal combustion engine with cooling passage system, it has at least one cylinder, piston is arranged in this cylinder can be along the axis to-and-fro motion of this cylinder head, this cylinder head comprises: the regional and territory, a lateral areas of vault portion, and these two zones define the firing chamber of cylinder in installment state; A construction opening, this aperture arrangement are used to hold a nozzle in vault portion zone, fuel can be introduced in the firing chamber by this nozzle; A relief opening, this mouth, are used to hold one and are used for from the outlet valve of firing chamber combustion gas in the territory, lateral areas about axis arranged; Several vault portion cooling channels, these passages extend along the direction of relief opening, and each of at least two vault portion cooling channels all has the entrance and exit that is used for freezing mixture; A valve cooling channel, this passage extends along relief opening; Each vault portion cooling channel is so arranged, thereby make the inlet of vault portion cooling channel move fartherly from relief opening than outlet, the outlet of at least one vault portion cooling channel is connected on the valve cooling channel, thereby freezing mixture can be carried continuously and relates to a kind of reciprocating internal combustion engine with so a kind of cylinder head by vault portion cooling channel and valve cooling channel.
Background technique
Known is known to the public with the form of large-scale diesel engine particularly with uniflow scavenged two stroke diesel engine.Such motor does not have suction valve on cylinder head, because air enters by the so-called scavenging port that is arranged in the cylinder lower zone.Outlet valve is arranged on the center region of cylinder head head zone along cylinder axis, and waste gas is discharged from this.Opposite is, be used for injection valve that fuel sprays be arranged on territory, cylinder head lateral areas about the casing longitudinal axis diagonally extending be suitable for install in the opening of these injection valves.Therefore the fuel injection is not to carry out in the center, but carries out from the side.However, the fuel that sprays in order to make reaches in the firing chamber as far as possible equably and distributes, and is provided with several injection valves in each cylinder, typically is three injection valves of each cylinder.The advantage (except that other advantage) of cylinder head with outlet valve of center arrangement is: Cooling System Design and layout are simple especially in the cylinder head.The high symmetry properties of outlet valve and injection valve causes the central row port hight symmetry of the thermal strain of cylinder head when work about cylinder head equally.Therefore, the geometrical shape that is used for the known cooling passage system of such cylinder head also is corresponding simple.
Known cylinder head with central row air valve has several straight vault portion cooling channels, these passages extend in the territory, lateral areas of cylinder head, this cylinder head define substantially one since one first (outside) annular space is towards the conical surface of relief opening, and has two adjacent straight vault portion cooling channels towards gap that this relief opening reduces.In this respect, vault portion cooling channel has the entrance and exit that is used for freezing mixture, and wherein the inlet of vault portion cooling channel moves fartherly than outlet from relief opening.Each of vault portion cooling channel exports all that opening enters in the valve cooling channel, thereby freezing mixture can be carried continuously by vault portion cooling channel and valve cooling channel.In this respect, the valve cooling channel substantially extend along relief opening with straight line on the conical surface or on the conical surface of a slight inclination and opening enter one common second (on) in the annular space, can be got back to the radiator of internal-combustion engine by this annular space freezing mixture by conveying once more.The construction opening that is used to install nozzle is arranged in a circumference around relief opening concentrically between two corresponding vault portion cooling channels.In this respect, so select this radius of a circle, thereby can obtain enough spacings for the construction opening between two corresponding vault portion cooling channels.
The known cylinder head of band central row air valve is characterised in that, thermal stress in the work also can be passed through its highly symmetrical design and controlled with the cooling passage system of above-mentioned brief description in simple especially mode, and this is because the simple geometric shape of cylinder head also is reflected in the temperature curve feature of the cylinder head that adopts in the work of large combustion machine naturally.This means, for example, because the asymmetric mechanical stress that the temperature gradient of labyrinth causes has only been reduced widely by geometrical shape.But this fact causes such important disadvantages, and promptly the known cylinder head with the central row air valve need use several nozzles, and therefore this layout must be assembled with extra cell in the mode of relative complex, thereby overall cost is very high.
In order to eliminate these shortcomings, EP 0 959 240 has proposed a kind of cylinder head, and the construction opening that wherein is used for nozzle is centered close to the vault portion surface of cylinder head, sprays thereby still can only need a nozzle to carry out fuel.Be arranged in the territory, lateral areas of cylinder at this outlet valve.The advantage of such cylinder head is conspicuous, and describes in detail in EP 0 959 240.But the above-mentioned known concept that is used for the cylinder head cooling can not be moved into the cylinder head of the outlet valve of band center arrangement simply, because this has been subjected to changing the restriction of geometrical shape.Because outlet valve is arranged in the territory, lateral areas, so asymmetric situation substantially in the thermal stress of cylinder head, occurred.For example near the temperature the outlet valve wants near the temperature ratio such as the nozzle much higher at work.Consequently, compare, need dissimilar heat radiation fully with the cylinder head of the outlet valve of being with center arrangement.Therefore, be used to be redesigned fully with the cooling passage system of the cylinder head of the outlet valve of center arrangement.
Summary of the invention
Therefore, the purpose of this invention is to provide and a kind ofly be used to uniflow scavenged reciprocating internal combustion engine, particularly as the cylinder head with cooling passage system of the large-scale diesel engine of two-stroke diesel combustion engine design, considered the specific (special) requirements of cooling passage system of cooling usefulness of cylinder head in the territory, lateral areas outlet valve and that outlet valve is arranged on cylinder head of band center arrangement.
By the present invention, therefore a cylinder head with cooling passage system that is used for reciprocating internal combustion engine has been proposed, this cylinder head has at least one cylinder, piston is arranged in this cylinder can be along the axis to-and-fro motion of this cylinder head, this cylinder head comprises a vault portion zone and territory, a lateral areas, and these two zones define the firing chamber of cylinder in installment state.In the vault portion surface of cylinder head, be provided with a construction opening that is used to hold a nozzle, fuel can be introduced in the firing chamber by this nozzle, relief opening, is used to hold one and is used for from the outlet valve of firing chamber combustion gas in the territory, lateral areas about the axis arranged of cylinder head.In addition, be provided with several vault portion cooling channels, these passages extend along the direction of relief opening, and each of at least two vault portion cooling channels all has the entrance and exit that is used for freezing mixture.In this respect, each vault portion cooling channel is so arranged, thereby make the inlet of vault portion cooling channel move fartherly from relief opening than outlet, the outlet of at least one vault portion cooling channel is connected on the valve cooling channel, thereby freezing mixture can be carried continuously by vault portion cooling channel and valve cooling channel.In addition, at least one nozzle cooling passage is extended along construction opening, and the outlet of at least one vault portion cooling channel is connected on the nozzle cooling passage, thereby freezing mixture can be carried continuously by vault portion cooling channel and nozzle cooling passage.
Comprise a vault portion zone and territory, a lateral areas by cylinder head of the present invention, these two zones define the firing chamber of cylinder in installment state.In this respect, the vault portion of cylinder head zone constitutes firing chamber and the opposed defining surface of piston end surface.This vault portion zone has a construction opening that is used for the cardinal principle center arrangement at the nozzle in vault portion zone.Adjoin in vault portion zone in the territory, lateral areas, and the central axis that is used for the construction opening of nozzle relatively so is in tilted layout, so that this territory, lateral areas enters in the vault portion zone with an acute angle opening.One first annular space is arranged in the circumference in territory, lateral areas of cylinder head, and is suitable for coolant feed in the cooling passage system of cylinder head.
Be characterised in that by cylinder head of the present invention, the cooling passage system general design becomes three parts and opposite with traditional cooling passage system, it is except having the valve cooling channel of several vault portion cooling channels and respective number, the nozzle cooling passage that also additionally has given number, this nozzle cooling passage is extended along the nozzle of center arrangement.In this respect, be connected to the cooling that vault portion cooling channel on first annular space is suitable for the territory, lateral areas substantially at inlet side, and be set for cylinder head substantially along the valve cooling channel that relief opening extends in the cooling in outlet valve zone be used for the cooling of outlet valve itself.Therefore nozzle cooling passage is extended along construction opening, is particularly suitable for the cooling in abutting connection with the construction opening zone of the cooling of nozzle and cylinder head.In this respect, a part is connected to the valve cooling channel at outlet side in the above-mentioned vault portion cooling channel, and other remaining vault portion cooling channel then is connected to nozzle cooling passage at outlet side.Nozzle cooling passage enters in the common collector at the outlet side opening, and valve cooling channel opening enters common second annular space, and second annular space is connected on this collector by an adapter.
At work, freezing mixture is since first annular space, therefore at first flow through vault portion cooling channel with the cold side zone, in a first portion loop, be introduced into subsequently, flow through the successively adapter of valve cooling channel, second annular space and collector, be parallel to this is introduced into the collector of flowing through in a second portion loop nozzle cooling passage then, this collector is got back to coolant feed in the radiator of reciprocating internal combustion engine then.
Description of drawings
Illustrate in greater detail the present invention below in conjunction with accompanying drawing.Illustrate with schematic representation at this:
Fig. 1 is a cylinder with large-scale diesel engine of cylinder head and other entity part;
Fig. 2 is a section figure by an embodiment of the cylinder head with cooling passage system of the present invention;
Fig. 3 is the view of a not to scale (NTS), shows one first embodiment of the cooling passage system with a gas outlet valve and an injection valve;
Fig. 4 is second embodiment by Fig. 3.
Embodiment
Fig. 1 is a schematic representation, shows the cylinder 3 of a large-scale diesel engine G, and it comprises one by the cylinder head with cooling passage system 2 of the present invention, and this cylinder head is hereinafter all with reference number 1 mark.Be specially adapted to be designed to large-scale diesel engine G by cylinder head 1 of the present invention with uniflow scavenged two stroke diesel engine.The physical components of large-scale diesel engine G is known, and large-scale diesel engine G has several cylinders 3 usually.
The cylinder 3 of such large-scale diesel engine G has a cylinder head 1, and cylinder head 1 comprises territory, 5 and lateral areas, vault portion zone 6, the firing chamber 7 when they define cylinder 3 and are in installment state, as shown in Figure 1.In this respect, vault portion when cylinder head 1 is in installment state zone 5 constitutes the defining surface of firing chambers 7, and this surface and piston end surface 41 are opposed, and perpendicular to the axis A-A of cylinder head 1.Adjoin in vault portion zone 5 in territory, lateral areas 6, and its top is that opening enters in the vault portion zone 5 as shown in the figure, and this upper angled is extended in the axis A-A of cylinder head 1, thereby territory, lateral areas 6 enters in the vault portion zone 5 with an acute angle opening.Piston 4 is arranged to can be forward and move backward along the axis A-A of cylinder 3.Piston 4 is connected on the bent axle (not shown) by a piston rod in a kind of known mode.
Cylinder head 1 has one, and substantially center arrangement being used in vault portion zone 5 held the construction opening 8 of an injection valve 9.Injection valve 9 is connected on the injection apparatus (not shown) through a fuel pipe 91, and this device is introduced fuel in the firing chamber 7 of cylinder 3, shown in dot and dash line among Fig. 1 by injection valve 9.Relief opening 10 is arranged in the territory, lateral areas 6 of cylinder head 1, is used to hold outlet valve 11.
Cylinder head 1 is suitable for cooling off with a tripartite cooling passage system 2 of cardinal principle, and this system 2 comprises several cooling channels 12, and each all has an inlet 13 and 14 that is used for freezing mixture at least two of these passages.In this respect, each the vault portion cooling channel 12 in the cylinder head 1 all so is provided with, thereby the inlet 13 of each vault portion cooling channel 12 moves fartherly than its corresponding outlet 14 from relief opening 10.In addition, cylinder head 1 comprises the nozzle cooling passage 16 of at least one valve cooling channel 15 and at least one band relief opening 20, and this relief opening is connected on the collector 21.
In Fig. 2, the plane E that the edge is limited by axis A-A and B-B has schematically illustrated the part with a nozzle 9 and a relief opening 10 by cylinder head 1 of the present invention.Vault portion cooling channel 12 as can be seen therefrom, it exports 14 openings and enters in the nozzle cooling passage 16.Relief opening 20 openings of nozzle cooling passage 16 enter in the collector 21, and this collector illustrates and is connected to cross section on the connecting tube 22, and the function of this connecting tube will describe in detail hereinafter.
In Fig. 3 and 4, schematically illustrated a example by each cooling passage system 2 of the cylinder head 1 with an outlet valve 11 and a nozzle 9 of the present invention with the view of a not to scale (NTS).For simplicity's sake, nozzle 9 illustrates with installment state not.Shown in Fig. 3 and 4, the vault portion cooling channel 12 that has different length usually all generally along the direction of the relief opening 10 of cylinder head 1 with straight-line extension.Vault portion cooling channel 12 preferably is disposed in the cylinder head 1, thus their longitudinal axis L-L in a conical surface since one first annular space 17, along axis A-A, to the center of cylinder head 1, with the cardinal principle between any two adjacent vault cooling channel 12 longitudinal axis L-L of portion always angle same α extend.Naturally also it is contemplated that different longitudinal axis L-L between angle [alpha] be different.
First annular space 17 is with the inside of its circumference at cylinder head 1, and be connected to by a supplier 171 on the cooling unit (not shown) of cylinder 3, supplier 171 can be supplied with first annular space 17 with freezing mixture from this cooling unit (valve is not shown) of cylinder 3.In this respect, first annular space 17 can have several supplieies 171 fully, and perhaps supplier 171 can be used as an annular opening partially or even wholly along 17 extensions of first annular space.
Those vault portion cooling channels 12 are connected on the valve cooling channel 15 by exporting 14, and wherein the outlet 14 of cooling channel 12 is near from construction opening 8 from relief opening 10 ratios.In preferred these vault portion cooling channels 12 each all only is connected with a valve cooling channel 15 separately.But, also can imagine fully two or more such vault portion cooling channels 12 are connected on one or the identical valve cooling channel 15 simultaneously.Preferred each valve cooling channel 15 with an angle that tilts about the axis V-V of relief opening 10 along the axis V-V extension that is in line.In this respect, the tilt angle about axis V-V can all be identical for all valve cooling channels 15.For example, can be 0 degree about the tilt angle of axis V-V, thereby all valve cooling channels 15 all be arranged in common (imaginary) cylindrical region; All valve cooling channels 15 also can be arranged in (imaginary) conical region with different angle of inclination values.Naturally it is contemplated that also that two or more valves cooling channel has the different inclination angle about axis V-V, for example so that the temperature distribution in the compensation cylinder vault portion zone asymmetric, this asymmetric generation when work about axis V-V.In special situation, also it is contemplated that one or more valves cooling channel 15 not along relief opening 10 with straight-line extension, but extend with spiral-shaped or other shape about axis V-V.
Those vault portion cooling channels 12 are connected on the nozzle cooling passage 16 by exporting 14, and wherein the outlet 14 of cooling channel 12 is near from relief opening 10 from construction opening 8 ratios.In preferred these vault portion cooling channels 12 each all only is connected with a nozzle cooling passage 16, as shown in Figure 3.But, also can imagine fully and two or more such vault portion cooling channels 12 are exported 14 places at it simultaneously be connected on one or the identical nozzle cooling passage 16.Figure 14 illustrates a such embodiment.Preferred each nozzle cooling passage 16 with an angle that tilts about the axis A-A of cylinder head 1 along the axis A-A extension that is in line.In this respect, can be identical about the angle of axis A-A for all nozzle cooling passage 16, perhaps also can be different.In special situation, also it is contemplated that one or more nozzle cooling passage 16 along passage 8 being installed, but extend with spiral-shaped or other shape about axis A-A with straight-line extension.
The nozzle cooling passage 16 of extending along construction opening 8 enters the collector 21 from the outlet 14 beginning openings of vault portion cooling channel 12, this collector is suitable for holding the freezing mixture of Continuous Flow through vault portion cooling channel 12 and nozzle cooling passage 16, and freezing mixture can be supplied with the radiator of large-scale diesel engine G (not shown) once more by this collector 21.
At certain both for some vault portion cooling channels that will be designed to blind hole, again under the environment for some valve cooling channels and/or some nozzle cooling passage, promptly only have an inlet opening that is used for freezing mixture for corresponding passage, and do not have under the situation of relief opening, this is favourable.It is different to it is contemplated that simultaneously diameter with different cooling channels is designed to, the freezing mixture difference of zones of different in the cylinder head thereby time per unit is flowed through, so asymmetric thermal stress can be compensated preferably on the cylinder head.
Therefore comprise a kind of cooling passage system by cylinder head of the present invention, it is because tripartite design substantially, and is particularly suitable for the cooling requirement with center fuel cylinder head that spray and be provided with outlet valve in the territory, lateral areas.Use and concrete geometrical shape and layout by nozzle cooling passage additional, considered the height nonsymmetry of cylinder head thermal stress theoretically by different cooling channels.Therefore the amount of localized heat difference that occurs at work can be dispelled the heat by cooling passage system, thereby has reduced heat gradient effectively, and has therefore avoided the mechanical stress in the cylinder head effectively.
Claims (10)
1. the cylinder head with cooling passage system (2) that is used for reciprocating internal combustion engine has at least one cylinder (3), and a piston (4) is arranged in this cylinder can be along axis (A-A) to-and-fro motion of this cylinder head, and this cylinder head comprises:
-one vault portion zone (5) and territory, a lateral areas (6), these two zones define the firing chamber (7) of cylinder (3) in installment state;
-one construction opening (8), this aperture arrangement is used to hold a nozzle (9) in vault portion zone (5), and fuel can be introduced in the firing chamber (7) by this nozzle;
-one relief opening (10), this mouth is arranged in the territory, lateral areas (6) about axis (A-A), is used to hold an outlet valve (11) that is used for (7) combustion gas from the firing chamber;
-several vault portions cooling channel (12), these passages extend along the direction of relief opening (10), and each of at least two vault portions cooling channel (12) all has inlet (13) and the outlet (14) that is used for freezing mixture;
-one valve cooling channel (15), this passage extends along relief opening (10);
Each vault portion cooling channel (12) is so arranged, thereby make the inlet (13) of vault portion cooling channel (12) move fartherly from relief opening (10) than outlet (14), the outlet (14) of at least one vault portion cooling channel (12) is connected on the valve cooling channel (15), thereby freezing mixture can be carried continuously by vault portion cooling channel (12) and valve cooling channel (15), it is characterized in that, at least one nozzle cooling passage (16) is extended along construction opening (8), the outlet (14) of at least one vault portion cooling channel (12) is connected on the nozzle cooling passage (16), thereby freezing mixture can be carried continuously by vault portion cooling channel (12) and nozzle cooling passage (16).
2. by the described cylinder head of claim 1, it is characterized in that the inlet (13) of vault portion cooling channel (12) is connected with one first annular space (17), freezing mixture can be fed into the inlet (13) of vault portion cooling channel (12) from this space.
3. by claim 1 or 2 described cylinder heads, it is characterized in that valve cooling channel (15) opening enters second annular space (18) that is suitable for holding freezing mixture.
4. by claim 1 or 2 described cylinder heads, it is characterized in that at least two vault portions cooling channel (12) and/or two valve cooling channels (15) are different on its diameter.
5. by claim 1 or 2 described cylinder heads, it is characterized in that at least two valve cooling channels (15) and/or two nozzle cooling passage (16) are different on its diameter.
6. by claim 1 or 2 described cylinder heads, it is characterized in that the longitudinal axis (L-L) of vault portion cooling channel (12) is positioned on the conical surface and the axis (A-A) that begins to cylinder head from this first annular space extends.
7. by claim 1 or 2 described cylinder heads, it is characterized in that the outlet (14) of at least two vault portions cooling channel (12) is connected by a connecting passage (19).
8. by claim 1 or 2 described cylinder heads, it is characterized in that the relief opening (20) of nozzle cooling passage (16) is connected on the collector (21).
9. by claim 1 or 2 described cylinder heads, it is characterized in that collector (21) is connected so that freezing mixture passes through with second annular space (18) by a connecting tube (22).
10. a reciprocating internal combustion engine has by the described cylinder head of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02405023.9 | 2002-01-16 | ||
| EP02405023 | 2002-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1432727A CN1432727A (en) | 2003-07-30 |
| CN100467847C true CN100467847C (en) | 2009-03-11 |
Family
ID=27635916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031015913A Expired - Fee Related CN100467847C (en) | 2002-01-16 | 2003-01-15 | Cylinder head with cooling passage system for reciprocating internal combustion engine |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1329628B1 (en) |
| JP (1) | JP4340070B2 (en) |
| KR (1) | KR100921412B1 (en) |
| CN (1) | CN100467847C (en) |
| DE (1) | DE50210310D1 (en) |
| DK (1) | DK1329628T3 (en) |
| PL (1) | PL358264A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007030482B4 (en) | 2007-06-30 | 2018-12-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling channels in the cylinder head of an internal combustion engine |
| EP2410140B1 (en) | 2010-07-20 | 2013-05-08 | Wärtsilä Schweiz AG | lubrication device for a piston |
| EP3000998B1 (en) * | 2014-09-24 | 2017-07-19 | Caterpillar Motoren GmbH & Co. KG | Valve seat insert for an internal combustion engine |
| KR20160068044A (en) * | 2014-12-04 | 2016-06-15 | 현대자동차주식회사 | Engine for vihicles |
| DK179175B1 (en) * | 2016-03-16 | 2018-01-08 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | A cylinder cover for a large two-stroke turbocharged compression-ignited internal combustion engine |
| EP3219970A1 (en) * | 2016-03-17 | 2017-09-20 | Winterthur Gas & Diesel AG | Cylinder for a longitudinally wound two-stroke large disel engine and large diesel engine |
| JP7164286B2 (en) | 2016-04-27 | 2022-11-01 | 東芝ライフスタイル株式会社 | refrigerator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406066A (en) * | 1971-12-09 | 1975-09-10 | Sulzer Ag | Cylinder heads for internal combustion piston engines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH242922A (en) * | 1944-05-08 | 1946-06-15 | Sulzer Ag | Internal combustion engine. |
| JP3073275B2 (en) * | 1991-07-24 | 2000-08-07 | ヤンマーディーゼル株式会社 | Cylinder head of water-cooled internal combustion engine |
| DK0959240T3 (en) * | 1998-05-22 | 2003-10-27 | Waertsilae Nsd Schweiz Ag | Cylinder cover for a two-stroke diesel internal combustion engine and device containing such |
-
2002
- 2002-12-17 EP EP02406107A patent/EP1329628B1/en not_active Expired - Lifetime
- 2002-12-17 DE DE50210310T patent/DE50210310D1/en not_active Expired - Fee Related
- 2002-12-17 DK DK02406107T patent/DK1329628T3/en active
-
2003
- 2003-01-03 KR KR1020030000363A patent/KR100921412B1/en not_active IP Right Cessation
- 2003-01-14 PL PL03358264A patent/PL358264A1/en unknown
- 2003-01-15 JP JP2003006729A patent/JP4340070B2/en not_active Expired - Fee Related
- 2003-01-15 CN CNB031015913A patent/CN100467847C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406066A (en) * | 1971-12-09 | 1975-09-10 | Sulzer Ag | Cylinder heads for internal combustion piston engines |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50210310D1 (en) | 2007-07-26 |
| EP1329628A2 (en) | 2003-07-23 |
| DK1329628T3 (en) | 2007-10-08 |
| EP1329628A3 (en) | 2003-11-19 |
| KR20030077948A (en) | 2003-10-04 |
| KR100921412B1 (en) | 2009-10-14 |
| CN1432727A (en) | 2003-07-30 |
| EP1329628B1 (en) | 2007-06-13 |
| PL358264A1 (en) | 2003-07-28 |
| JP4340070B2 (en) | 2009-10-07 |
| JP2003214251A (en) | 2003-07-30 |
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