EP0483134A1 - Brennkraftmaschine. - Google Patents
Brennkraftmaschine.Info
- Publication number
- EP0483134A1 EP0483134A1 EP89908691A EP89908691A EP0483134A1 EP 0483134 A1 EP0483134 A1 EP 0483134A1 EP 89908691 A EP89908691 A EP 89908691A EP 89908691 A EP89908691 A EP 89908691A EP 0483134 A1 EP0483134 A1 EP 0483134A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- internal combustion
- combustion engine
- engine according
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
-
- 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
Definitions
- the aim of the invention is to improve an internal combustion engine in such a way that it is easy to set up, can be built compactly, the individual parts can be manufactured easily and cheaply, and in thermal terms the cooling function of uniform cooling can be performed in accordance with the heating of the cylinder .
- the solution is to dispense with the incorporation of cooling channels for the circulation cooling in the cylinder.
- An uncomplicated component should be used to form the cooling space on the cylinder in the top dead center area of the piston. Such a component should also be able to form the circulation cooling in the cylinder head.
- the component that makes this possible is a sleeve that is slipped over the cylinder. This sleeve can also overlap the cylinder head, so that the cylinder head is placed in this sleeve on the cylinder.
- a heat and sound insulation sleeve is applied to the lower part of the cylinder, so that external thermal influences do not affect the even thermal image of the cylinder.
- This component also has a sound-insulating effect, which can be desirable for free-standing cylinders.
- the cylinder head can be manufactured as simple components without additional processing; in the case of castings, these can be manufactured core-free with regard to the circulation cooling. Cooling is ensured in the critical areas of the valve seat and upper piston reversal point. Due to the smaller cross-section of the circulation cooling space, which can be minimized to about a tenth in comparison to castings, the cooling can be made effective since a higher circulation speed of the coolant is achieved and less coolant has to be circulated.
- the sleeve as a component for circulation cooling is not mechanically stressed, since the cap screws do not introduce any forces into it, and is thermally uncritical, since it only takes on the temperature of the coolant at all points, so that sealing it is also unproblematic.
- the invention is primarily intended to be used in engines which simultaneously use the lubricating oil as a cooling medium.
- the mixing of the oils in the head is not harmful, and neither is there a slight leak at the separating point between cylinder / head / oil space.
- the use of the heat and sound insulation sleeve gives the particular advantage of thermal insulation of the lower cylinder part in free-standing cylinders, in order to still achieve the temperatures that prevail in the upper cylinder area in cold outside temperatures in the lower cylinder area. This is necessary for the tightness of the piston with respect to the inner cylinder wall, so that the cylinder does not have to be conically honed.
- this compact type of cooling sleeve and insulating sleeve can lie within the circumference given by the cap screws without the cap screws being a great distance from the cylinder and thus no bending forces being introduced into the head or crankcase.
- the space of the circulating cooling which holds the coolant is formed by the easily mountable and removable sleeve, one end of which is sealed at the head and the other end at the cylinder.
- the space formed by the cylinder, head and sleeve can be annular by unscrewing the head plate and the upper outer diameter of the cylinder.
- the sleeve can overlap the cylinder and head or protrude into the head by inserting an annular groove or sit bluntly on the underside of the head.
- the sleeve can be formed from sheet metal or can also be designed as a turned part.
- the cooling fluid-receiving space of the cooling circuit can completely enclose the enclosed parts of the head and cylinder, that is to say without ribs or webs.
- both the uniformity of the flow and its speed can be determined. be placed.
- the sealing points can be placed in this construction so that they are neither thermally nor mechanically stressed.
- the thermal and sound insulation on the lower cylinder part can be a sleeve, a tubular component or a foamed mass. Further details can be found in the claims.
- the image shows a section of the cross section of an internal combustion engine in the area around the cylinder liner (11). This sits over a collar (21) on the crankcase (205) and firmly clamped to the cylinder head (10) via the tie rod (19) shown here offset.
- the end of the cylinder liner (11) facing the cylinder head (10) is completely surrounded by a coolant jacket (1) in the region of the sealing part (8) of the piston, which does not allow internal cooling of the cylinder liner (11), as is the cylinder head (10) in the area of the head plate enclosing the valve seats.
- a cooling sleeve (2) that encloses the component and rests on the cylinder head (10) via sealing elements (6) and on the cylinder sleeve (11) via sealing element (7).
- the coolant passes through connection (13) into an annular groove (4) and flows through an annular gap to the annular collecting groove (5) in the cylinder head (10) and from there via bore (14) and (15) in the vent .
- the dimensioning of the annular gap ensures the even distribution of the coolant over the component U far. ⁇ and high flow velocity.
- the heat and sound insulation sleeve (16) is cuff-like with screw ben (18) over the uncooled part of the cylinder liner (11) and separated by an insulating intermediate layer (17).
- Both sleeves (2) and (16) do not project beyond the largest cylinder liner diameter (12) on the collar (21) neither in the area of the tie rods (19) nor in the area of the neighboring cylinder liner.
- the inner diameter (3) of the cylinder liner (11) can therefore be over 88% of the cylinder distance.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89908691T ATE90774T1 (de) | 1988-07-29 | 1989-07-28 | Brennkraftmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3825961 | 1988-07-29 | ||
DE3825961 | 1988-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0483134A1 true EP0483134A1 (de) | 1992-05-06 |
EP0483134B1 EP0483134B1 (de) | 1993-06-16 |
Family
ID=6359921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89908691A Expired - Lifetime EP0483134B1 (de) | 1988-07-29 | 1989-07-28 | Brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5239949A (de) |
EP (1) | EP0483134B1 (de) |
AU (1) | AU3988689A (de) |
BR (1) | BR8907587A (de) |
DE (1) | DE58904755D1 (de) |
WO (1) | WO1990001632A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005026599B4 (de) * | 2005-06-09 | 2007-07-12 | Man Diesel Se | Brennkraftmaschine |
US7255067B1 (en) | 2006-04-10 | 2007-08-14 | Thorpe Douglas G | Evaporative in-cylinder cooling |
US7299770B2 (en) * | 2006-04-10 | 2007-11-27 | Thorpe Douglas G | Evaporative in-cylinder cooling |
CN105649747B (zh) * | 2016-01-06 | 2018-08-07 | 潍柴动力股份有限公司 | 一种电控活塞冷却喷嘴控制方法及系统 |
DE102018009442B3 (de) * | 2018-12-01 | 2020-04-16 | Otto-Von-Guericke-Universität Magdeburg | Zylinderanordnung und Verfahren zum Kühlen der Zylinderanordnung |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE133985C (de) * | ||||
US1413372A (en) * | 1919-10-06 | 1922-04-18 | Andres George Samuel | Cylinder construction |
US2500085A (en) * | 1943-08-13 | 1950-03-07 | Milliken Humphreys | Engine |
US2736300A (en) * | 1951-06-05 | 1956-02-28 | Gen Motors Corp | Engine cylinder construction |
FR1587405A (de) * | 1968-10-01 | 1970-03-20 | ||
US3882842A (en) * | 1974-01-28 | 1975-05-13 | Caterpillar Tractor Co | Cylinder liner support |
GB2069046A (en) * | 1980-02-07 | 1981-08-19 | Leyland Vehicles | Internal combustion engine cylinder oil cooling |
DE3134771C2 (de) * | 1981-09-02 | 1983-10-20 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | Zylinderbuchse für Brennkraftkolbenmaschinen |
AT379869B (de) * | 1983-03-29 | 1986-03-10 | Avl Verbrennungskraft Messtech | Zweitaktbrennkraftmaschine |
DE3314543A1 (de) * | 1983-04-21 | 1984-10-25 | Ludwig Ing.(grad.) 8543 Hilpoltstein Elsbett | Gemeinsame innen- und aussenkuehlung einer brennkraftmaschine |
DE3326320C2 (de) * | 1983-07-21 | 1990-10-04 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Kolbenbrennkraftmaschine mit einer, in ein Zylinderkurbelgehäuse eingesetzten, nassen Zylinderlaufbüchse |
US4895111A (en) * | 1984-03-13 | 1990-01-23 | Elsbett L | Engine cooling system |
US4542719A (en) * | 1984-07-25 | 1985-09-24 | Teledyne Industries, Inc. | Engine cooling system |
DE3613099A1 (de) * | 1986-04-18 | 1987-10-29 | Audi Ag | Verfahren zur waermeisolierung der zylinderwaende eines wassergekuehlten zylinderblocks einer hubkolben-brennkraftmaschine |
DE3633513A1 (de) * | 1986-10-02 | 1988-04-14 | Kloeckner Humboldt Deutz Ag | Luftgekuehlte brennkraftmaschine |
US4729347A (en) * | 1986-10-27 | 1988-03-08 | Schmitz Donald L | Internal combustion chamber |
US4796572A (en) * | 1987-06-01 | 1989-01-10 | The United States Of America As Represented By The Secretary Of The Army | Combustion chamber liner |
US4926801A (en) * | 1987-12-22 | 1990-05-22 | Mack Trucks, Inc. | Wet/dry cylinder liner for high output engines |
US4867119A (en) * | 1988-10-21 | 1989-09-19 | Caterpillar Inc. | Engine piston assembly and forged piston member therefor having a cooling recess |
-
1989
- 1989-07-28 DE DE8989908691T patent/DE58904755D1/de not_active Expired - Fee Related
- 1989-07-28 AU AU39886/89A patent/AU3988689A/en not_active Abandoned
- 1989-07-28 EP EP89908691A patent/EP0483134B1/de not_active Expired - Lifetime
- 1989-07-28 WO PCT/DE1989/000496 patent/WO1990001632A1/de active IP Right Grant
- 1989-07-28 BR BR898907587A patent/BR8907587A/pt not_active IP Right Cessation
- 1989-07-28 US US07/646,782 patent/US5239949A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9001632A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0483134B1 (de) | 1993-06-16 |
BR8907587A (pt) | 1991-07-30 |
AU3988689A (en) | 1990-03-05 |
DE58904755D1 (de) | 1993-07-22 |
WO1990001632A1 (de) | 1990-02-22 |
US5239949A (en) | 1993-08-31 |
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Legal Events
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