DE187924C - - Google Patents
Info
- Publication number
- DE187924C DE187924C DENDAT187924D DE187924DA DE187924C DE 187924 C DE187924 C DE 187924C DE NDAT187924 D DENDAT187924 D DE NDAT187924D DE 187924D A DE187924D A DE 187924DA DE 187924 C DE187924 C DE 187924C
- Authority
- DE
- Germany
- Prior art keywords
- jacket
- cast
- cylinder
- casting
- curved elastic
- 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.)
- Active
Links
- 238000005266 casting Methods 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910000754 Wrought iron Inorganic materials 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es ist bekannt, bei doppelwandigen Zylindern einen wesentlichen Teil des äußeren Mantels als Wölbung auszubilden, zu dem Zweck, durch Temperaturdifferenzen bewirkte Formveränderungen aufzunehmen.It is known that with double-walled cylinders a substantial part of the outer To train the jacket as a bulge, for the purpose of caused by temperature differences Record changes in shape.
Die Wölbung wird in bekannter Weise dadurch hergestellt, daß man entweder den äußeren Mantel unterbricht und durch gewölbte Einsatzstücke diese UnterbrechungThe curvature is produced in a known manner by either the interrupted outer jacket and curved insert pieces this interruption
ίο mittels Schrauben oder Niete verschließt, oder aber die Wölbung des äußeren Mantels im Zusammenhang mit dem inneren Zylindermantel in einem Stück ohne Unterbrechung gießt.ίο closed with screws or rivets, or the curvature of the outer jacket in connection with the inner cylinder jacket pours in one piece without interruption.
Beiden Mitteln zur Erfüllung des oben erwähnten Zwecks haften folgende Mängel an: Das gewölbte Einsatzstück ist an seinen Verbindungsstellen mit dem übrigen Zylinderkörper stets undicht gegen Kühlwasser oder Heizdampf.The following deficiencies are inherent in both means to achieve the above-mentioned purpose: The curved insert is at its connection points with the rest of the cylinder body always leaking against cooling water or heating steam.
Der gewölbt gegossene äußere Zylindermantel ist mit Gußspannungen behaftet, zu denen sich die Spannungen aus der Formveränderung, hervorgerufen durch Temperaturdifferenz im Betriebe, addieren und so die Verwendung von Gußeisen in dem gefährlichen Querschnitt ausschließt.The arched cast outer cylinder jacket is afflicted with casting stresses, too which are the stresses from the change in shape, caused by temperature difference in operation, add up and thus exclude the use of cast iron in the dangerous cross-section.
Es ist ferner bekannt, Teile aus Schmiedeisen in Gußeisenkörper einzugießen, zu dem Zwecke, die Gußeisengegenstände zu verbilligen oder vorteilhaft zu ergänzen.It is also known to cast parts made of wrought iron in cast iron bodies to which Purposes to make the cast iron objects cheaper or to supplement them advantageously.
Nach der Erfindung ist durch Eingießen eines Ausgleichkörpers aus elastischstem Schmiedeisen in den äußeren Mantel eines Gas- oder Heißdampfzylinders ein Mittel gegeben, Zylinder mit besseren Festigkeitseigenschaften und größerer Dichtigkeit gegen Kühlwasser oder Heizdampf herzustellen.According to the invention, by casting a compensating body from the most elastic Wrought iron put an agent in the outer jacket of a gas or superheated steam cylinder, Manufacture cylinders with better strength properties and greater impermeability to cooling water or heating steam.
Die Wirkung des Ausgleichkörpers umfaßt die Aufhebung der Gußschwindung und Gußspannung, die Gewährung vollkommener Dichtigkeit an den Verbindungsstellen und die Aufnahme der Formveränderungen, hervorgerufen durch Temperaturunterschiede im Betriebe der Zylinder.The effect of the compensating body includes the elimination of casting shrinkage and casting stress, the granting of perfect tightness at the connection points and the absorption of the changes in shape due to temperature differences in the operation of the cylinders.
Wie die Abbildungen erkennen lassen, ist der Ausgleichkörper α von beliebiger Form mit Vertiefungen versehen, in die das flüssige Eisen eintritt und auf denen es derart aufschrumpft, daß der äußere Zylindermantel dicht gegen Kühlwasser und Heißdampf ist.As can be seen from the figures, the compensating body α is provided with indentations of any shape, into which the liquid iron enters and onto which it is shrunk in such a way that the outer cylinder jacket is impervious to cooling water and superheated steam.
Der Ausgleichkörper ist aus elastischstem Schmiedeisen hergestellt und derart in die Zylinderform eingebracht, daß der Guß in einem Stück erfolgen kann und ein geschlossenes Ganzes wie üblich entsteht.The compensation body is made of the most elastic wrought iron and so in the Cylindrical shape introduced so that the casting can be done in one piece and a closed one Whole as usual arises.
Der Ausgleichkörper gestattet ein Nachgeben sowohl in der Längsrichtung wie in der Querrichtung.The compensating body allows yielding both in the longitudinal direction and in the transverse direction.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE187924C true DE187924C (en) |
Family
ID=451576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT187924D Active DE187924C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE187924C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1244212B (en) * | 1957-03-14 | 1967-07-13 | Conch Int Methane Ltd | Heat-insulated container for storing low-boiling liquefied gases |
-
0
- DE DENDAT187924D patent/DE187924C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1244212B (en) * | 1957-03-14 | 1967-07-13 | Conch Int Methane Ltd | Heat-insulated container for storing low-boiling liquefied gases |
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