CH158337A - Cylinder covers for internal combustion engines. - Google Patents
Cylinder covers for internal combustion engines.Info
- Publication number
- CH158337A CH158337A CH158337DA CH158337A CH 158337 A CH158337 A CH 158337A CH 158337D A CH158337D A CH 158337DA CH 158337 A CH158337 A CH 158337A
- Authority
- CH
- Switzerland
- Prior art keywords
- cover plate
- internal combustion
- combustion engines
- cast steel
- soldered
- Prior art date
Links
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
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
-
- 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
-
- 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
- F02F2001/249—Cylinder heads with flame plate, e.g. insert in the cylinder head used as a thermal insulation between cylinder head and combustion chamber
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
Zylinderdeckel für Brennkraftmaschinen. Bei Zylinderdeckeln für Brennkraftmaschi- nen, die aus Einzelteilen zusammengelötet sind, sind die Einzelteile zweckmässig von einfacher Gestalt, um an allen Berührungs stellen dichte und zuverlässige Lötnähte zu erzielen. Bei komplizierten Zylinderdeckeln, z. B. für Viertaktmaschinen, bei denen meh rere Ventile und Führungswände für das Kühlmittel vorhanden sind, ist die Erzielung dichter Lötnähte nicht ganz einfach.
Es sind schon Zylinderdeckel für Breirn- kraftmaschinen bekannt, die einen gegossenen Deckelkörper und eine Abdeckplatte besitzen, welche den Deckelkörper gegen den Brenn- raum abschliesst. Die Ventilrohre, Verstär kungsrippen und Führungswände für das Kühlmittel sind in den Deckelkörper mit eingegossen. Für den Deckelkörper hat man Stahlguss verwendet und für die Abdeckplatte ein hitzebeständiges Metall. Bei diesen Zylin derdeckeln ist die Abdeckplatte am Deckel körper angeschraubt oder angeschweisst.
Die Erfindung bezieht sich auf Zylinder deckel dieser Art; gemäss derselben ist die Abdeckplatte in das Stahlgussstück einge- presst und mit ihm verlötet. Durch das Ein pressen wird die Herstellung einer dichten und zuverlässigen Lötnaht zwischen dem Deckelkörper und der Abdeckplatte gesichert. Die gegen den Brennraum offene Bauart des Deckelkörpers vermeidet Gussspannungen und ermöglicht ein bequemes Giessen und Ent fernen des Kerns. Die Verwendung einer be sonderen Abdeckplatte ermöglicht die Wahl eines gegen Hitze besonders widerstands fähigen Werkstoffes für die Platte.
Schliesslich ist die Herstellung des Zylinderdeckels einfach.
Die Zeichnung veranschaulicht die Er findung an einem Ausführungsbeispiel.
Fig. 1 ist ein vertikaler Schnitt durch den Zylinderdeckel nach der Linie C-D der Fig. 2 ; Fig. 2 ist ein horizontaler Schnitt nach der Linie A-B der Fig. 1. Der die Kräfte aufnehmende Zylinder deckelkörper a ist aus Stahlguss hergestellt. Er besitzt einen gegen den Brennraum offenen Kühlraum. Dieser Raum ist gegen den Brenn raum durch eine Abdeckplatte b abgeschlossen, die in den Zylinderdeckelkörper eingepresst und mit ihm zusammengelötet ist, was die Zeichnung nicht zeigt.
Die Abdeckplatte besteht aus einem hitzebeständigen Metall, z. B. aus Kesselblech.
An den Durchbruchstellen für die Ventile sind kurze Büchsen c vorgesehen. Die Büchsen c können in den Stahlgusskörper eingepresst oder eingeschraubt werden. Ihre Aussenform ist zweckmässig so gewählt, dass sie beim Einpressen oder Einschrauben die Abdeck- platte b an den Gusskörper andrücken. Diese Büchsen sind zweckmässig mit der Platte b und dem Stahlgusskörper a zusammengelötet. Auf diese Weise ist ein Zylinderdeckel ge schaffen, der von Gussspannungen frei, den Betriebstemperaturen gewachsen und einfach herstellbar ist.
Cylinder covers for internal combustion engines. In the case of cylinder covers for internal combustion engines that are soldered together from individual parts, the individual parts are expediently of a simple shape in order to achieve tight and reliable soldered seams at all points of contact. For complicated cylinder covers, e.g. B. for four-stroke machines, in which meh eral valves and guide walls for the coolant are available, the achievement of tight soldered seams is not easy.
Cylinder covers for pulp engines are already known which have a cast cover body and a cover plate which closes the cover body off from the combustion chamber. The valve tubes, reinforcement ribs and guide walls for the coolant are cast into the cover body. Cast steel was used for the cover body and a heat-resistant metal for the cover plate. In these Zylin derdeckeln the cover plate is screwed or welded to the cover body.
The invention relates to cylinder cover of this type; According to the same, the cover plate is pressed into the cast steel piece and soldered to it. By pressing a, the production of a tight and reliable solder seam between the cover body and the cover plate is secured. The design of the cover body, which is open towards the combustion chamber, avoids casting stresses and enables the core to be cast and removed easily. The use of a special cover plate enables the choice of a material for the plate that is particularly resistant to heat.
Finally, the manufacture of the cylinder cover is easy.
The drawing illustrates the invention using an exemplary embodiment.
Fig. 1 is a vertical section through the cylinder cover taken along line C-D of Fig. 2; Fig. 2 is a horizontal section along the line A-B of Fig. 1. The force-absorbing cylinder cover body a is made of cast steel. It has a cooling chamber that is open towards the combustion chamber. This space is closed off from the combustion chamber by a cover plate b, which is pressed into the cylinder cover body and soldered to it, which the drawing does not show.
The cover plate is made of a heat-resistant metal, e.g. B. from boiler plate.
Short sleeves c are provided at the breakthrough points for the valves. The bushes c can be pressed or screwed into the cast steel body. Their external shape is expediently chosen so that they press the cover plate b onto the cast body when it is pressed in or screwed in. These bushings are expediently soldered together with the plate b and the cast steel body a. In this way, a cylinder cover is created that is free from casting stresses, can withstand operating temperatures and is easy to manufacture.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE45124X | 1930-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH158337A true CH158337A (en) | 1932-11-15 |
Family
ID=5624895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH158337D CH158337A (en) | 1930-12-09 | 1931-08-15 | Cylinder covers for internal combustion engines. |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT130981B (en) |
CH (1) | CH158337A (en) |
DK (1) | DK45124C (en) |
FR (1) | FR721846A (en) |
GB (1) | GB377491A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008050195A1 (en) | 2008-10-01 | 2010-04-08 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Cylinder head for internal-combustion engine, has gas channel, bearing sleeve for gas exchange valve, and case for fixing bolt, where cam shaft storage, base plate, and multiple side panels are provided |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1030619B (en) * | 1956-08-04 | 1958-05-22 | Henschel & Sohn Gmbh | Cylinder head |
DE1214935B (en) * | 1960-11-25 | 1966-04-21 | Maschf Augsburg Nuernberg Ag | One-piece cast cylinder head of high-speed, liquid-cooled high-performance diesel engines |
DE102004001908A1 (en) * | 2004-01-14 | 2005-08-04 | Daimlerchrysler Ag | Cylinder head for a liquid-cooled internal combustion engine with gas change channels, cooling agent space around the channels and bracing elements in the cylinder head made of stronger material than the material surrounding the head |
CN109261907A (en) * | 2018-12-11 | 2019-01-25 | 广西玉柴机器股份有限公司 | A kind of method and sand core component of cylinder cover for diesel engine quick cast |
AT523188B1 (en) * | 2019-12-06 | 2021-09-15 | Avl List Gmbh | CYLINDER HEAD FOR A COMBUSTION ENGINE |
-
1931
- 1931-03-07 DK DK45124D patent/DK45124C/en active
- 1931-03-07 AT AT130981D patent/AT130981B/en active
- 1931-08-15 CH CH158337D patent/CH158337A/en unknown
- 1931-08-21 FR FR721846D patent/FR721846A/en not_active Expired
- 1931-09-16 GB GB25945/31A patent/GB377491A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008050195A1 (en) | 2008-10-01 | 2010-04-08 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Cylinder head for internal-combustion engine, has gas channel, bearing sleeve for gas exchange valve, and case for fixing bolt, where cam shaft storage, base plate, and multiple side panels are provided |
Also Published As
Publication number | Publication date |
---|---|
AT130981B (en) | 1932-12-27 |
GB377491A (en) | 1932-07-28 |
DK45124C (en) | 1932-01-18 |
FR721846A (en) | 1932-03-08 |
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