DE893875C - Camshaft drive for two or more cylinder, air-cooled internal combustion engines for motorcycles - Google Patents
Camshaft drive for two or more cylinder, air-cooled internal combustion engines for motorcyclesInfo
- Publication number
- DE893875C DE893875C DEH5016A DEH0005016A DE893875C DE 893875 C DE893875 C DE 893875C DE H5016 A DEH5016 A DE H5016A DE H0005016 A DEH0005016 A DE H0005016A DE 893875 C DE893875 C DE 893875C
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- internal combustion
- motorcycles
- air
- combustion engines
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/026—Gear drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0535—Single overhead camshafts [SOHC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0537—Double overhead camshafts [DOHC]
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/18—DOHC [Double overhead camshaft]
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/20—SOHC [Single overhead camshaft]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
Die Erfindung bezieht sich auf die Anordnung des Nockenwellenantriebs für zwei- oder mehrzylindrige, luftgekühlte B.rennkraftmaschinen für Motorräder mit am Zylinderkopf liegender, durch eine Kette oder eine Königswelle angetriebener Nockenwelle.The invention relates to the arrangement of the camshaft drive for two or more cylinder, air-cooled racing engines for motorcycles with one located on the cylinder head and driven by a chain or a vertical shaft Camshaft.
Bei bekannten Ausführungen ist der Steuerungsantrieb obenliegender Nockenwellen bei Ein- oder Mehrz.ylinderverbrennungsmotoren .sowohl bei Verwendung einer Kette als auch einer Königswelle seitlich am Zylinder angeordnet. Diese Ausfehrungen haben folgende Mängel: i. Durch das Anschneiden der Kühlrippen an einem der Zylinder, an dessen Außenseite das Steuergehäuse befestigt ist, entsteht eine ungleichmäßige Kühlung, und dadurch treten thermische Unterschiede -in den Zylindern auf. Dies führte zuweilen zu Betriebsstörungen. 2. Die Zugänglichkeit zu der Zündkerze auf der Steuerseite wird stark beeinträchtigt, da das Steuergebäuse den Zünäkerzensitz verdeckt.In known designs, the control drive is at the top Camshafts in single or multi-cylinder internal combustion engines, both when used a chain and a vertical shaft arranged on the side of the cylinder. These versions have the following defects: i. By cutting the cooling fins on one of the cylinders, on the outside of which the control housing is attached, an uneven surface arises Cooling, and thereby thermal differences occur in the cylinders. this sometimes led to operational disruptions. 2. Accessibility to the spark plug the control side is severely affected because the control housing has the spark plug seat covered.
Um den angeführten Mängeln abzuhelfen, ist gemäß der Erfindung der Antrieb einer oder mehrerer Nockenwellen bei Zwei- oder Mehrzylinderkraftradmotoren zentral zwischen zwei Zylindern vorgesehen. Hierdurch werden folgende Vorteile erzielt: i. Gleichmäßige Kühlluftführung an beiden Zylindern, wodurch thermische Ungleichheiten ausgeschaltet werden; 2. leichte Zugänglichkeit zu den Zündkerzen bei jedem Zylinder; 3. symmetrischer Aufbau der Konstruktion; d.. wirksamer Schutz ,der Steuerorgane gegen Beschädigung.In order to remedy the deficiencies mentioned, is according to the invention of Drive one or more camshafts in two- or multi-cylinder motorcycle engines provided centrally between two cylinders. This has the following advantages: i. Even cooling air flow on both cylinders, which leads to thermal inequalities turned off; 2. Easy access to the spark plugs on each cylinder; 3. symmetrical construction of the construction; d .. effective protection, the control organs against damage.
Diese Eigenschaften ergeben in ihrer Gesamtheit einen einfachen und klaren Aufbau. Es ist bereits' eine wassergekühlte, vierzylindrige Brennkraftmaschine bekannt, deren Ventile durch eine Steuerscheibe mit Nockenba:hnen gesteuert werden. Die Steuerscheibe befindet sich zwischen je zwei Zylindern und @istdurch eine Kette mit der Kurbelwelle verbunden, so daß ein symmetrischer Aufbau der Maschine erreicht wird. Die Aufgabe der Erfindung, ein unsymmetrisches Ausschneiden der Kühlrippen -und damit eine ungleichmäßige Kühlung der Zylinder zu vermeiden, liegt hier nicht vor.Taken together, these properties result in a simple and clear structure. It is already 'a water-cooled, four-cylinder internal combustion engine known whose valves are controlled by a control disc with Nockenba: hnen. The control disc is located between two cylinders each and is through a chain connected to the crankshaft, so that a symmetrical structure of the machine is achieved will. The object of the invention, an asymmetrical cutting out of the cooling fins - and thus avoiding uneven cooling of the cylinders is not an option here before.
In der Zeichnung üst die Erfindung an zwei Ausführungsbeispielen dargestellt, und zwar zeigt Fig. i den Querschnitt eines Zweizylinderverbrennungsmotors mit einer Nockenwelle und Kettenantrieb, Fig. 2 den Längsschnitt hierzu, Fig.3 den Querschnitt mit zwei obenliegenden Nockenwellen und Kettenantrieb, Fiig. q. den dazugehörigen Längsschnitt, Fig. 5 den Querschnitt eines Verbrennungsmotors mit Antrieb d er Nockenwelle durch Schraubenräder und Königswelle, Fig. 6 den dazugehörigen Längsschnitt.In the drawing, the invention is shown in two exemplary embodiments, namely Fig. i shows the cross section of a two-cylinder internal combustion engine with a Camshaft and chain drive, Fig. 2 is the longitudinal section, Fig. 3 is the cross section with two overhead camshafts and chain drive, Fiig. q. the associated Longitudinal section, Fig. 5 shows the cross section of an internal combustion engine with drive d he camshaft through helical gears and upright shaft, Fig. 6 the associated longitudinal section.
Es bezeichnet: i die Kurbehvelle, 2 und 3 die Zylinder, q. ,das treibende Kettenrad, 5 die Antriebskette, 6 die Nockenwelle und 7 das angetriebene Kettenrad.It denotes: i the crank shaft, 2 and 3 the cylinders, q. , the driving force Sprocket, 5 the drive chain, 6 the camshaft and 7 the driven sprocket.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH5016A DE893875C (en) | 1950-08-22 | 1950-08-22 | Camshaft drive for two or more cylinder, air-cooled internal combustion engines for motorcycles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH5016A DE893875C (en) | 1950-08-22 | 1950-08-22 | Camshaft drive for two or more cylinder, air-cooled internal combustion engines for motorcycles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE893875C true DE893875C (en) | 1953-10-19 |
Family
ID=7144234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH5016A Expired DE893875C (en) | 1950-08-22 | 1950-08-22 | Camshaft drive for two or more cylinder, air-cooled internal combustion engines for motorcycles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE893875C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE926823C (en) * | 1952-11-06 | 1955-04-25 | Porsche Kg | Camshaft drive for the valve control of multi-row internal combustion engines |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE412442C (en) * | 1925-04-22 | Fritz Peter | Control for multi-cylinder internal combustion engines | |
US2339191A (en) * | 1939-02-08 | 1944-01-11 | Pennsylvania Pump & Compressor | Electric multistep controller |
-
1950
- 1950-08-22 DE DEH5016A patent/DE893875C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE412442C (en) * | 1925-04-22 | Fritz Peter | Control for multi-cylinder internal combustion engines | |
US2339191A (en) * | 1939-02-08 | 1944-01-11 | Pennsylvania Pump & Compressor | Electric multistep controller |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE926823C (en) * | 1952-11-06 | 1955-04-25 | Porsche Kg | Camshaft drive for the valve control of multi-row internal combustion engines |
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