DK145107B - The coolant for four-stroke diesel engines specific headpiece - Google Patents
The coolant for four-stroke diesel engines specific headpiece Download PDFInfo
- Publication number
- DK145107B DK145107B DK532778AA DK532778A DK145107B DK 145107 B DK145107 B DK 145107B DK 532778A A DK532778A A DK 532778AA DK 532778 A DK532778 A DK 532778A DK 145107 B DK145107 B DK 145107B
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- Prior art keywords
- cooling
- bores
- head piece
- cylinder
- head
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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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
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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
- 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
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
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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
- 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
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
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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
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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
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- 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)
- Compressor (AREA)
Description
145107 i 1 Opfindelsen angår et væskekølet, til firetakts-diesel-motorer bestemt topstykke af den i krav l's indledning angivne art.This invention relates to a liquid-cooled four-stroke diesel engine of the type specified in the preamble of claim 1.
5 Topstykker i dieselmotorer er stærkt påvirkede dele.5 Diesel engine headers are heavily influenced parts.
Dels er de udsat for store gaskræfter, der virker i forbrændingsrummet, dels er de udsat for varmespændin-ger på grund af den i forbrændingsrummet opstående varme. Vanskelighederne bliver herved desto større, jo 10 højere tændtrykket og jo større diameteren af motorens cylinderboring er. Dette gælder også med hensyn til kølingen, idet kravene til kølingen bliver desto strengere, jo større ydelsen pr. motorcylinder er.On the one hand, they are exposed to large gas forces acting in the combustion chamber and partly they are exposed to heat stresses due to the heat generated in the combustion chamber. The difficulty hereby becomes the greater, the higher the ignition pressure and the larger the diameter of the engine cylinder bore. This also applies with regard to cooling, as the requirements for cooling become more stringent, the greater the performance per unit. engine cylinder is.
15 Ved dieselmotorer til forholdsvis små ydelser er det kendt at udforme topstykket dobbeltvægget og anbringe et kølerum for kølemidlet mellem de to vægge. Gaskræfterne, der påvirker den mod forbrændingsrummet vendende væg og den i denne væg optrædende temperaturgradi-20 ent, er kun små, så at de i væggen optrædende spændinger ikke giver særlige problemer.15 For relatively small service diesel engines, it is known to design the double-walled cylinder head and place a refrigerant compartment for the refrigerant between the two walls. The gas forces affecting the wall facing the combustion chamber and the temperature gradient present in this wall are only small, so that the stresses present in the wall do not cause any particular problems.
Ved dieselmotorer til større ydelse er en dobbeltvægkonstruktion i topstykket dels af styrkegrunde, dels 25 af deformationsgrunde ikke egnet. Temperaturgradienten, der er større som følge af højere gastemperaturer, kan fremkalde revner i den mod forbrændingsrummet vendende væg. Desuden kan udbøjningen af denne væg blive så stor, at tætheden af ventilerne ikke mere er sikret.For larger-performance diesel engines, a double-wall structure in the header is partly for strength reasons and partly for deformation reasons. The temperature gradient, which is larger as a result of higher gas temperatures, can cause cracks in the wall facing the combustion chamber. Furthermore, the deflection of this wall can become so great that the tightness of the valves is no longer ensured.
30 Gassen kan da undvige gennem udstrømningsventilen og forbrænde denne.30 The gas can then evade through the outflow valve and burn it.
Til firetakts-dieselmotorer kendes der en køleboringsanordning med køleboringer, der krydser hinanden vin-35 kelret, idet der findes en radial køleboring mellem 145107 2 1 hver to naboudsparinger for ventilerne. Denne anordning kan ikke anvendes til meget store cylinderydelser, da de i radial retning udefter liggende områder af topstykkebunden ikke bliver tilstrækkelig kølet.For four-stroke diesel engines, there is known a cooling bore device with cooling bores that intersect at right angles, with a radial cooling bore located between each two adjacent recesses for the valves. This device cannot be used for very large cylinder services, since the radially outwardly extending regions of the cylinder head are not sufficiently cooled.
5 I dansk patentskrift nr. 121 07¾ er der beskrevet et topstykke til store dieselmotorer, der sædvanligt arbejder efter totaktsprincippet. Ved dette kendte topstykke findes der i en central boring i topstykket en 10 gasudstrømningsventil, hvorimod der ikke findes luft indstrømningsventiler i topstykket, da luften indføres i cylinderrummet gennem slidser, der er anbragt i cylindervæggen. De til tilførsel af brændstoffet nødvendige indsprøjtningsventiler er anbragt uden for centrum 15 for topstykket i hver sin skrå boring. Disse boringer har, som fig. 4 i patentskriftet viser det, en forholdsvis lille diameter. Ved det kendte topstykke findes der til køling af bundfladen og den centrale udstrømningsventil kanaler, der er jævnt fordelt over 20 topstykkets omkreds, idet nogle af kanalerne udgår fra et ringkammer og går over i de andre kanaler, der forløber parallelt med udstrømningsventilen. Dette kendte topstykke er ikke egnet til at tilpasses til et topstykke til firetakts-dieselmotorer, ved hvilke der i 25 topstykket findes både en central brændstofindsprøjtningsventil og om denne flere indstrømnings- og udstrømningsventiler.5 In Danish patent specification 121 07¾, a top piece is described for large diesel engines, which usually work according to the two-stroke principle. By this known head, a central bore of the head is provided with a gas outflow valve, whereas no air inflow valves are found in the head as the air is introduced into the cylinder space through slots arranged in the cylinder wall. The injection valves required for supplying the fuel are located outside the center 15 of the cylinder head in each oblique bore. These bores, as FIG. 4 of the patent, it shows a relatively small diameter. At the known header there are channels for cooling the bottom surface and the central outflow valve which are evenly distributed over the circumference of the header, some of the channels exiting from an annulus and passing into the other channels which run parallel to the outflow valve. This known cylinder head is not suitable for adapting to a cylinder head for four-stroke diesel engines in which the cylinder head contains both a central fuel injection valve and about this several inlet and outflow valves.
Den foreliggende opfindelse tager sigte på at angive et topstykke til køling af den omhandlede art, der sikrer en tilstrækkelig køling på enkel måde også af topstykker til firetakts-dieselmotorer med meget stor cylinderydelse.SUMMARY OF THE INVENTION The present invention aims to provide a cooling head of the type in question which ensures sufficient cooling in a simple manner also of headings for four-stroke diesel engines with very large cylinder performance.
35 Dette opnås ifølge opfindelsen ved, at topstykket er 145107 3 1 udformet som angivet i krav l’s kendetegnende del.This is achieved according to the invention in that the head piece is designed as defined in the characterizing part of claim 1.
Ved denne anordning opnår man på enkel og fordelagtig måde at undgå udsparingerne for ventilerne og ved 5 hjælp af de i forhold til inderboringen konvergerende køleboringer at udnytte hele yderområdet af topstykkebundfladen virksomt til kølingen. Ved en forøgelse af ydelsen og en forstørrelse af cylinderboringen kan kølingen ved en forøgelse af antallet af de konvergeren-10 de yderboringer og en passende fordeling af dem over yderområdet på topstykkebundfladen tilpasses godt, fx. ved pr. gruppe at anvende tre mod den tilhørende, radiale inderboring konvergerende yderboringer som top-stykkekøleboringer. Endvidere er der hensigtsmæssigt 15 tæt under indstrømnings- og/eller udstrømningskanalerne anbragt yderligere gaskanalkøleboringer i et med planet for topstykkebundkøleboringeme parallelt, højere plan. Et sådant topstykke kan fordelagtigt være fremstillet i et stykke af gråstøbejern eller sphæro-20 støbejern. Alle de nævnte køleboringer kommunikerer fortrinsvis med overstrømningskanaler, der er fødet med et kølemiddel fra en fødekilde, og som er udformet i en cylinderindsats og en ledekappe, der omgiver indsatsen. Ledekappen består fortrinsvis af stålstøbe-25 gods og tjener tillige som bandage for cylinderindsatsen.By this device, the recesses of the valves are obtained in a simple and advantageous manner and by means of the cooling bores converging in relation to the inner bore, to utilize the entire outer area of the cylinder head surface effectively for the cooling. By increasing the performance and enlarging the cylinder bore, by increasing the number of the converging outer bores and an appropriate distribution of them over the outer area of the cylinder head surface, the cooling can be well adapted, e.g. at per group to apply three towards the associated radial inner bore converging outer bores as top piece cooling bores. Further, conveniently beneath the inflow and / or outflow ducts, additional gas duct cooling bores are disposed in a higher plane parallel to the plane of the top piece bottom cooling bores. Such a head may advantageously be made of a piece of gray cast or spherical cast iron. All said cooling bores preferably communicate with overflow channels fed with a refrigerant from a food source and formed in a cylinder insert and a guide sheath surrounding the insert. The guide sheath preferably consists of steel castings and also serves as a bandage for the cylinder insert.
Topstykket kan være opdelt i en overdel med indstrømnings- og udstrømningskanaler og en underdel med ven-30 tilsædekøleboringerne og topstykkekøleboringerne, idet der ikke findes særlige gaskanalkøleboringer. Overdelen er fordelagtigt fremstillet af gråstøbejern eller sphærostøbejern eller - når den tjener som bandage for cylinderindsatsen - af stålstøbegods.The head may be divided into a top with inlet and outlet ducts and a bottom with the friend seat cooling bores and the head cooling bores, with no special gas channel cooling bores. The upper is advantageously made of gray cast iron or spheroid cast iron or - when serving as a bandage for the cylinder insert - of steel castings.
35 4 145107 1 Opfindelsen forklares nærmere under henvisning til tegningen , på hvilken fig. 1 viser et snit gennem en udførelsesform 5 for et topstykke i et stykke og den øver ste del af en cylinderindsats svarende til en linie I-I i fig. 2, fig. 2 et vandret snit gennem topstykket og en 10 del af en ledekappe svarende til en linie II-II i fig. 1, idet indstrømnings- og udstrømningsventiler er udeladt, fig. 3 et snit på samme måde som i fig. 1 gennem 15 en udførelsesform for et opdelt topstykke og fig. 4 et snit på lignende måde som i fig. 3 gennem en anden udførelsesform for et opdelt 20 topstykke.The invention is further explained with reference to the drawing, in which: FIG. 1 shows a section through an embodiment 5 of a one-piece head and the upper part of a cylinder insert corresponding to a line I-I in FIG. 2, FIG. 2 is a horizontal section through the head piece and a portion of a guide sheath corresponding to a line II-II in FIG. 1, with inflow and outflow valves being omitted; FIG. 3 is a sectional view similar to FIG. 1 through 15 shows an embodiment of a divided head piece; and FIG. 4 is a section similar to FIG. 3 through another embodiment of a divided 20 header.
I fig. 1 og 2 er et topstykke 1 i et stykke fastgjort til en cylinderindsats 3, der fører et stempel 2, ved hjælp af flere skruer 4, af hvilke to er synlige i 25 fig. 2. Topstykket 1 har fire i aksial retning forløbende udsparinger 5 for to indstrømningsventiler og to udstrømningsventiler. I hver udsparing 5 er der indpresset en ventilsædering 6, på hvis ende, der vender mod et forbrændingsrum 35 i cylinderen 3, der er ud-30 formet et ventilsæde 8 for en bevægelig lukkedel 31 i den pågældende indstrømnings- eller udstrømningsventil.In FIG. 1 and 2, a cylinder head 1 is attached to a cylinder insert 3 which carries a piston 2 by means of a plurality of screws 4, two of which are visible in FIG. 2. The head piece 1 has four axially extending recesses 5 for two inflow valves and two outflow valves. In each recess 5, a valve seat 6 is pressed on the end of which faces a combustion chamber 35 in the cylinder 3, which is formed a valve seat 8 for a movable closure part 31 of the respective inlet or outflow valve.
I fig. 1 er lukkedelen 31 ført i en bøsning 33 og sidder i lukkestilling på et ventilsæde 8 i en ventilsædering 6. På omkredsen af ventilsæderingen 6 mellem den-35 ne og indervæggen i udsparingen 5 findes et ringrum 9, 5 145107 1 der er forbundet med en ventilsæde-køleboring 10. Topstykket har endvidere en i forhold til aksen 26 i cylinderen 3 koaksial boring 11, i hvilken en bøsning 12 til optagelse af en ikke vist brændstofventil er anord-5 net tæt. Bøsningen 12 har ved sin omkreds aksiale noter 14, der er forbundet dels over ringrum 9 i sæderingen 6 med ventilsædekøleboringerne 10 og dels med et kølevandsrum 15 for indstrømnings- og udstrømningskanaler 30. Tæt under hver kanal 30 findes der en kanalkølebo-10 ring 28, idet der også kan være flere sådanne boringer.In FIG. 1, the closure member 31 is guided into a sleeve 33 and sits in a closure position on a valve seat 8 in a valve seat 6. On the circumference of the valve seat ring 6 between this and the inner wall of the recess 5 there is an annulus 9, 5 connected to a valve seat cooling bore 10. The cap further has a coaxial bore 11 relative to the axis 26 of the cylinder 3 in which a sleeve 12 for receiving a fuel valve not shown is sealed 5. The sleeve 12 has at its circumferential axial grooves 14, which are connected partly over annulus 9 in the seat ring 6 to the valve seat cooling bores 10 and partly to a cooling water space 15 for inflow and outflow ducts 30. A duct cooling annulus 28 is provided beneath each duct 30. since there may also be several such bores.
En ledekappe 16 omgiver den øverste ende af cylinderindsatsen 3 og en cylindrisk ansats 36 på topstykket 1 og er i forhold til denne aftætnet mod kølevandstab.A guide sheath 16 surrounds the upper end of the cylinder insert 3 and a cylindrical shoulder 36 on the top piece 1 and is sealed against cooling water loss in relation thereto.
Den indeholder over omkredsen fordelte aksiale over-15 gangskanaler 23, der er forbundet med i cylinderindsatsen 3 værende kølevands-tilførselskanaler 19 og med de i topstykkeansatsen 36 anbragte ventilsæde-kølebo-ringer 10 og kanal-køleboringerne 28 samt med topstyk-kebund-køleboringer 18. Tilførselskanalerne 19 udmun-20 der i en ringkanal 17, der er udformet ved den ydre omkreds af cylinderindsatsen 3.It includes circumferentially distributed axial transition ducts 23 connected to the cooling water supply ducts 19 in the cylinder insert 3 and to the valve seat cooling bores 10 and the duct cooling bores 28 and to the top cooling bottom bores 18 located in the cylinder insert 3. The supply channels 19 open in an annular channel 17 formed at the outer circumference of the cylinder insert 3.
Topstykkebund-køleboringerne 18 er anbragt i et plan i nærheden af den mod forbrændingsrummet 15 vendende 25 bundflade 22 i topstykket 1 og, som det fremgår af fig.The cylinder head cooling bores 18 are arranged in a plane in the vicinity of the bottom surface 22 facing the combustion chamber 15 in the cylinder head 1 and, as can be seen in FIG.
2, fordelt i dette plan. Planet ligger neden under et plan, i hvilket ventilsædekøleboringerne 10 og kanalboringerne 28 er anbragt. Topstykkebundkølingen er opdelt i fire køleområder, af hvilke hvert enkelt er begrænset 30 af to diametrale planer, der krydser hinanden i en cylinderakse 26, og som strækker sig gennem hver to naboudsparinger 5 ved disses akser. Til hvert således udformet køleområde hører der en gruppe køleboringer 18.2, distributed in this plan. The plane lies below a plane in which the valve seat cooling bores 10 and duct bores 28 are disposed. The head-piece bottom cooling is divided into four cooling regions, each of which is restricted by two diametrical planes that intersect in a cylinder axis 26 and extending through each of two neighboring recesses 5 at their axes. For each cooling area thus formed there is a group of cooling bores 18.
Hver sådan gruppe består af en radial, indvendig an-35 bragt inderboring 29 og tre mod denne inderboring kon- 6 145107 1 vergerende og med den kommunicerende yderboringer 21, der er fordelt over den radialt udvendig liggende del af det køleområde, der hører til gruppen. De tre yderboringer 21 i samme gruppe er derved forbundet med tre 5 overstrømningskanaler 23, hvorimod hver to naboyderbo-ringer 21 i to nabogrupper bliver fødet fra samme overstrømningskanal 23.Each such group consists of a radially inner bore 29 and three against this inner bore contiguous and with the communicating outer bores 21 distributed over the radially outer portion of the cooling region belonging to the group. . The three outer bores 21 in the same group are thereby connected to three 5 overflow channels 23, whereas each two neighboring bores 21 in two neighboring groups are fed from the same overflow channel 23.
Kølevandet ledes ved hjælp af en ikke vist pumpe gen-10 nem tilførselskanalerne 19 til overstrømningskanaler- ne 23. Disse kanaler 23 tilfører vandet til ventilsæde-køleboringerne 10, topstykke-køleboringerne 18 og kanal -køleboringerne 28. Hvert ventilsæde 8 bliver herved kølet af vand, der gennem den tilhørende ventilsæde-kø-15 leboring strømmer ind i ringrummet 9, og som derefter gennem noterne i bøsningen 12 strømmer bort til kølevandsrummet 15, idet også brændstofventilen, der er anbragt i bøsningen 12, bliver kølet. Vandet, der strømmer gennem topstykkebund-køleboringerne 18, køler 20 dækselbunden 22 og strømmer så ligeledes gennem noterne 14 i bøsningen 12 til kølevandsrummet 15, idet det derved understøtter kølingen af brændstofventilen. Det vand, der strømmer gennem kanalkøleboringerne 28, køler den tilsvarende væg i kanalen 30 og strømmer ligeledes 25 gennem noterne 14 i indsatsen 12 ind i kølevandsrummet 15.The cooling water is conducted by means of a pump 10 not shown through the supply channels 19 to the overflow channels 23. These channels 23 supply the water to the valve seat cooling bores 10, the head cooling bores 18 and the channel cooling bores 28. Each valve seat 8 is thereby cooled by water. flowing through the associated valve seat cooling 15 into the annulus 9 and then flowing through the grooves in the sleeve 12 to the cooling water chamber 15, the fuel valve disposed in the sleeve 12 being cooled as well. The water flowing through the cylinder head cooling bores 18 cools the cover bottom 22 and then also flows through the grooves 14 in the sleeve 12 to the cooling water chamber 15, thereby supporting the cooling of the fuel valve. The water flowing through the channel cooling bores 28 cools the corresponding wall in the channel 30 and also flows 25 through the grooves 14 in the insert 12 into the cooling water space 15.
Den beskrevne anordning af topstykkebund-kølingen muliggør en intensiv køling af hele topstykkebundfladen 30 22. Antallet af yderboringer 21 er ikke begrænset til tre, men kan vælges efter de temperaturer, der må forventes, og efter den køleflade, der skal bestryges.The described arrangement of the cylinder head cooling allows for intensive cooling of the entire cylinder floor 30 22. The number of outer bores 21 is not limited to three, but can be selected according to the temperatures to be expected and according to the cooling surface to be coated.
Derved kan også krav til topstykke-kølingen, der er betinget af store ydelser og store cylinderboringer, op-35 fyldes uden problemer.In this way, requirements for the cylinder head cooling, which are conditional on large services and large cylinder bores, can also be met without problems.
7 145107 1 Hvad materialet angår, kan topstykket 1 bestå af grå-støbegods eller af sphærostøbegods. Ledekappen 16 kan bestå af gråstøbegods. Når den skal tjene som trækoptagende bandage for cylinderindsatsen 3» vil man frem-5 stille den af stålstøbegods.7 As far as the material is concerned, the head piece 1 may consist of gray castings or of spiral castings. The guide sheath 16 may consist of gray castings. When it is to serve as tensile dressing for the cylinder insert 3, it will be made of steel castings.
Udførelsesformen i fig. 3 adskiller sig fra udførelses-formen i fig. 1 og 2 ved, at et cylinderdæksel 1’ er opdelt i en overdel 2b og en underdel 25. Overdelen 2b 10 indeholder gaskanalerne 30 og består af gråstøbegods eller sphærostøbegods, hvorimod underdelen 25 indeholder ventilsædekøleboringerne 10 og topstykkebund-køle-boringerne 18 og består af stål eller stålstøbegods.The embodiment of FIG. 3 differs from the embodiment of FIG. 1 and 2, in that a cylinder cover 1 'is divided into an upper part 2b and a lower part 25. The upper part 2b 10 contains the gas ducts 30 and consists of gray castings or spray castings, whereas the lower part 25 contains the valve seat cooling bores 10 and the headstock cooling bores 18 and consists of steel or steel castings.
Boringer, der svarer til kanal-køleboringerne 28 i fig.Bores corresponding to the channel cooling bores 28 of FIG.
15 1, mangler ved udførelsesformen i fig. 3· Mellem over delen 2b og underdelen 25 er der anbragt et tætningshylster 27, der omgiver bøsningen 12 på afstand, og som tillader en fri gennemstrømning af kølevand fra noterne 14 til kølevandsrummet 15 og samtidig forhin-20 drer et vandtab gennem skillefladen mellem delene 2b og 25. Ventilsædekøleboringerne 10 forløber under en spids vinkel i forhold til planet for topstykkebund-køleboringerne 18 og er ligesom boringerne 18 forbundet med overgangskanalerne 23. Ledekappen 16 kan også 25 i dette tilfælde bestå af gråstøbejern eller - når den tjener som en trækoptagende bandage for cylinderindsatsen 3 - af stålstøbegods.15 1, missing in the embodiment of FIG. 3 Between a portion 2b and bottom 25, a sealing sleeve 27 is disposed which surrounds the bush 12 at a distance and permits the free flow of cooling water from the grooves 14 to the cooling water chamber 15 and at the same time prevents water loss through the interface between the portions 2b. and 25. The valve seat cooling bores 10 extend at an acute angle to the plane of the top piece bottom cooling bores 18 and, like the bores 18, are connected to the transition ducts 23. The guide sheath 16 may also in this case consist of gray cast iron or - when serving as a pull-up dressing for cylinder insert 3 - of steel castings.
Udførelsesformen i fig. 4 adskiller sig fra udførelses-30 formen i fig. 3 i det væsentlige ved, at ledekappen 16 består af et stykke med en underdel 25 og af stål eller stålstøbegods. Tilførselskanalerne 19, der er fordelt over omkredsen af cylinderindsatsen 3, er over ringkanalen 17 forbundet med de som aksiale boringer i le-35 dekappen 16 udformede overstrømningskanaler 23. Til U5107 8 1 disse kanaler 23 er ventilsædekølekanalerne 10 til sluttet, og disse er anbragt i et med planet for top-stykkebund-køleboringerne 18 parallelt plan. Topstyk-kebund-køleboringerne får tilført kølevand, ligeledes 5 fra ringkanalen 17, over som aksiale boringer udformede overstrømningskanaler 23'. Den af stål eller stålstøbegods bestående ledekappe 16 er udformet som en trækoptagende bandage for cylinderindsatsen 3. Derved kan den ellers anvendte, separate bandage for cylin-10 derindsatsen undværes.The embodiment of FIG. 4 differs from the embodiment of FIG. 3 in that the guide sheath 16 consists of a piece with a lower part 25 and of steel or steel castings. The supply channels 19, distributed over the circumference of the cylinder insert 3, are connected over the annular channel 17 to the overflow channels 23. Designed as axial bores in the sheath 16, for these channels 23, a plane parallel to the plane of the top-piece cooling bores 18. The top-piece bottom cooling bores are supplied with cooling water, also 5 from the annular channel 17, over which overflow channels 23 'are formed as axial bores. The steel sheath 16 consisting of steel or steel castings is designed as a pull-up bandage for the cylinder insert 3. Thus, the otherwise used separate bandage for the cylinder insert can be avoided.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1505877 | 1977-12-08 | ||
| CH1505877A CH626949A5 (en) | 1977-12-08 | 1977-12-08 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK532778A DK532778A (en) | 1979-06-09 |
| DK145107B true DK145107B (en) | 1982-08-30 |
| DK145107C DK145107C (en) | 1983-01-31 |
Family
ID=4405994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK532778A DK145107C (en) | 1977-12-08 | 1978-11-29 | BASKET COOL, FOR FIRST-STOCK DIESEL ENGINES DESIGNED CIRCUITS |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS6044507B2 (en) |
| AT (1) | AT382934B (en) |
| CH (1) | CH626949A5 (en) |
| DE (1) | DE2755612C2 (en) |
| DK (1) | DK145107C (en) |
| FI (1) | FI64703C (en) |
| FR (1) | FR2411305A1 (en) |
| GB (1) | GB2009846B (en) |
| IT (1) | IT1192291B (en) |
| NL (1) | NL185235C (en) |
| NO (1) | NO149184C (en) |
| SE (1) | SE432801B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1283076B (en) * | 1964-06-27 | 1968-11-14 | Froriep Gmbh Maschf | Boring bar storage |
| JPS6269050U (en) * | 1985-10-21 | 1987-04-30 | ||
| DE3710630A1 (en) * | 1987-03-31 | 1988-07-07 | Audi Ag | Liquid-cooled cylinder head |
| DE4420130C1 (en) * | 1994-06-09 | 1995-11-16 | Mtu Friedrichshafen Gmbh | Cylinder head for an internal combustion engine |
| ATE169374T1 (en) * | 1994-09-19 | 1998-08-15 | Motoren Werke Mannheim Ag | INTERNAL COMBUSTION ENGINE |
| US9422886B2 (en) * | 2013-07-03 | 2016-08-23 | Electro-Motive Diesel, Inc. | Cylinder head assembly having cooled valve insert |
| US20160053712A1 (en) * | 2014-08-19 | 2016-02-25 | Deere & Company | Piston for Use in an Engine |
| CN104405467A (en) * | 2014-12-08 | 2015-03-11 | 广西玉柴机器股份有限公司 | Valve retainer cooling structure |
| JP6499783B1 (en) * | 2018-03-20 | 2019-04-10 | ダイハツディーゼル株式会社 | Cylinder head cooling structure, cylinder head having cooling structure |
| AT521514B1 (en) | 2018-09-14 | 2020-02-15 | Avl List Gmbh | cylinder head |
| CN114352428B (en) * | 2021-12-16 | 2022-11-08 | 中国船舶集团有限公司第七一一研究所 | Split type cylinder head and cylinder |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE483726C (en) * | 1926-06-11 | 1929-10-05 | Argus Motoren Ges M B H | Cylinder for internal combustion engines with a water-cooled bottom piece |
| CH423356A (en) * | 1964-10-27 | 1966-10-31 | Sulzer Ag | Cylinder head of an internal combustion engine |
| GB1134200A (en) * | 1966-10-05 | 1968-11-20 | Paxman & Co Ltd Davey | Improvements in and relating to internal combustion engines |
| GB1221421A (en) * | 1967-03-06 | 1971-02-03 | Paxman & Co Ltd Davey | Improvements in and relating to cylinder heads for internal combustion engines |
| CH545915A (en) * | 1971-12-09 | 1974-02-15 | ||
| JPS49135638U (en) * | 1973-03-09 | 1974-11-21 | ||
| GB1479139A (en) * | 1973-06-21 | 1977-07-06 | Nat Res Dev | Internal combustion engines |
| JPS5032440U (en) * | 1973-07-24 | 1975-04-09 |
-
1977
- 1977-12-08 CH CH1505877A patent/CH626949A5/de not_active IP Right Cessation
- 1977-12-14 AT AT0892277A patent/AT382934B/en not_active IP Right Cessation
- 1977-12-14 DE DE2755612A patent/DE2755612C2/en not_active Expired
-
1978
- 1978-11-01 FI FI783337A patent/FI64703C/en not_active IP Right Cessation
- 1978-11-29 DK DK532778A patent/DK145107C/en not_active IP Right Cessation
- 1978-12-05 IT IT30541/78A patent/IT1192291B/en active
- 1978-12-06 SE SE7812567A patent/SE432801B/en not_active IP Right Cessation
- 1978-12-07 FR FR7834527A patent/FR2411305A1/en active Granted
- 1978-12-07 NO NO784118A patent/NO149184C/en unknown
- 1978-12-07 NL NLAANVRAGE7811943,A patent/NL185235C/en not_active IP Right Cessation
- 1978-12-07 JP JP53150616A patent/JPS6044507B2/en not_active Expired
- 1978-12-08 GB GB7847751A patent/GB2009846B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK532778A (en) | 1979-06-09 |
| ATA892277A (en) | 1986-09-15 |
| FI64703B (en) | 1983-08-31 |
| DE2755612C2 (en) | 1981-11-12 |
| FR2411305B1 (en) | 1983-07-08 |
| CH626949A5 (en) | 1981-12-15 |
| FR2411305A1 (en) | 1979-07-06 |
| FI64703C (en) | 1983-12-12 |
| DK145107C (en) | 1983-01-31 |
| NO149184C (en) | 1984-02-29 |
| JPS6044507B2 (en) | 1985-10-03 |
| DE2755612A1 (en) | 1979-06-13 |
| IT7830541A0 (en) | 1978-12-05 |
| NL185235C (en) | 1990-02-16 |
| NO149184B (en) | 1983-11-21 |
| FI783337A (en) | 1979-06-09 |
| NL185235B (en) | 1989-09-18 |
| SE432801B (en) | 1984-04-16 |
| GB2009846A (en) | 1979-06-20 |
| JPS5489137A (en) | 1979-07-14 |
| NO784118L (en) | 1979-06-11 |
| SE7812567L (en) | 1979-06-09 |
| GB2009846B (en) | 1982-03-31 |
| IT1192291B (en) | 1988-03-31 |
| NL7811943A (en) | 1979-06-12 |
| AT382934B (en) | 1987-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |