DE525696C - Air-cooled cylinder, especially for internal combustion engines - Google Patents
Air-cooled cylinder, especially for internal combustion enginesInfo
- Publication number
- DE525696C DE525696C DES95109D DES0095109D DE525696C DE 525696 C DE525696 C DE 525696C DE S95109 D DES95109 D DE S95109D DE S0095109 D DES0095109 D DE S0095109D DE 525696 C DE525696 C DE 525696C
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- air
- internal combustion
- combustion engines
- cooled cylinder
- 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.)
- Expired
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052790 beryllium Inorganic materials 0.000 claims description 6
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 229910000952 Be alloy Inorganic materials 0.000 claims 1
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
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)
Description
Luftgekühlter Zylinder, insbesondere für Brennkraftmaschinen Es sind luftgekühlte Zylinder, insbesondere für Brennkraftmaschinen, bekannt, bei denen die Kolbenlaufbuchse aus Stahl, der Zylinderkopf mit seinem Boden und den Gaskanälen aus einer Leichtmetall-Legierung besteht. Es sind ferner Zylinder bekannt, bei denen auch der Boden des Zylinders aus Stahl besteht und die Ventilsitze unmittelbar im Stahlboden des Zylinders sich befinden.Air-cooled cylinder, especially for internal combustion engines There are air-cooled cylinders, in particular for internal combustion engines, known in which the steel piston liner, the cylinder head with its base and the gas ducts consists of a light metal alloy. There are also known cylinders in which also the bottom of the cylinder is made of steel and the valve seats directly in the Steel bottom of the cylinder.
Die letzte Ausführung hat den Nachteil, daß infolge der schlechten Wärmeleitfähigkeit des Stahles die Auslaßventilsitze eine verhältnismäßig kurze Lebensdauer haben. Jedoch hat der ebene Zylinderboden den Vorteil, daß man zur Erzielung hoher Zylinderleistung vier Ventile mit parallelen Schäften unterbringen kann, ohne also, wie z. B. bei Leichtmetallköpfen, mit Rücksicht auf die eingeschrumpften Ventilsitze die Ventilachsen gegeneinander neigen zu müssen, was einen unnötig hohen Luftwiderstand hervorruft.The last version has the disadvantage that as a result of the bad Thermal conductivity of the steel the exhaust valve seats a relatively short Have lifetime. However, the flat cylinder bottom has the advantage that you can achieve high cylinder capacity can accommodate four valves with parallel shafts without so, such as B. with light metal heads, taking into account the shrunk valve seats the valve axes have to incline against each other, which leads to an unnecessarily high air resistance evokes.
Die Erfindung ermöglicht es, vier Ventile mit parallelen Schäften und infolgedessen mit geringstem Luftwiderstand unterzubringen, ohne diesen Vorteil durch die geringe Wärmeleitfähigkeit des Zylinderbodens aus Stahl zu erkaufen. Der Boden des Zylinders wird erfindungsgemäß aus einer an sich bekannten Berylliumbronze hoher Festigkeit und guter Wärmeleitfähigkeit gebildet. Dieser Boden enthält gleichzeitig die Ventilsitze, während die Gasführung von einem auf dem Berylliumboden sitzenden Leichtmetallkopf übernommen wird.The invention enables four valves with parallel shafts and as a result, can be accommodated with the lowest possible air resistance, without this advantage due to the low thermal conductivity of the steel cylinder base. Of the According to the invention, the bottom of the cylinder is made of a beryllium bronze known per se high strength and good thermal conductivity. This soil contains at the same time the valve seats, while the gas flow from one seated on the beryllium floor Light metal head is adopted.
In der Abbildung ist ein Ausführungsbeispiel der Erfindung dargestellt. z ist die Stahllaufbuchse des Zylinders, 2 der erfindungsgemäß topfförmig ausgebildete, mit Rippen versehene und warm mit Gewinde aufgeschraubte Zylinderboden aus Berylliumbronze, der gleichzeitig die Ventilsitze 3 bildet. q. stellt den Zylinderkopf dar, der bei dieser Anordnung gegenüber früheren Konstruktionen von thermischen und mechanischen Beanspruchungen entlastet ist und im wesentlichen nur noch der Gasführung dient. Die linke Seite bei 5 zeigt eine Möglichkeit der Anordnung von Kühlrippen auf der aus Stahl bestehenden Laufbuchse, wobei die Rippen aus dem Vollen herausgedreht sind. Die rechte Seite bei 6 zeigt eine andere Rippenanordnung, indem ein Aluminiumrippenmantel an die Stahllaufbuchse angegossen ist.In the figure, an embodiment of the invention is shown. z is the steel liner of the cylinder, 2 is the cup-shaped according to the invention, Beryllium bronze cylinder base with ribs and screwed on with a warm thread, which forms the valve seats 3 at the same time. q. represents the cylinder head that is used in this arrangement over previous designs of thermal and mechanical Stresses is relieved and essentially only serves to guide the gas. The left side at 5 shows a possibility of arranging cooling fins on the made of steel liner, with the ribs turned out of solid are. The right side at 6 shows another fin arrangement by using an aluminum fin jacket is cast onto the steel liner.
Die Vorzüge des Zylinders liegen darin, daß auch bei Anordnung von vier Ventilen ein ebener Zylinderboden gewählt werden kann, wobei gleichzeitig infolge der ausgezeichneten Wärmeleitfähigkeit des verwendeten Materials eine ungewöhnlich gute Kühlung der Ventile möglich ist.The advantages of the cylinder are that even with the arrangement of four valves a flat cylinder bottom can be selected, with simultaneously as a result The excellent thermal conductivity of the material used is an unusual one good cooling of the valves is possible.
Die beschriebene Vereinigung des Zylinderbodens aus Berylliumbronze mit aufgesetztem Leichtmetallkopf hat ferner gegenüber der Herstellung von Zylinderboden und Zylinderkopf aus einem Stück aus Berylliumbronze den Vorteil einer ganz bedeutenden Gewichtsersparnis und erheblichen Verminderung der Kosten.The described union of the beryllium bronze cylinder base with attached light metal head also has compared to the production of cylinder bottoms and cylinder head made from one piece of beryllium bronze have the advantage of a very significant one Weight savings and considerable reduction in costs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES95109D DE525696C (en) | Air-cooled cylinder, especially for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES95109D DE525696C (en) | Air-cooled cylinder, especially for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE525696C true DE525696C (en) | 1931-05-30 |
Family
ID=7519149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES95109D Expired DE525696C (en) | Air-cooled cylinder, especially for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE525696C (en) |
-
0
- DE DES95109D patent/DE525696C/en not_active Expired
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