Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Raychem Limited

Michael Beer

August Hofbauer

Albrecht Reustle

Heinz Dorsch

Robert Binder

Klaus Hain

Staas Gietzen

Matthias Kroner

Erwin Knoll

Philipp Schimko

A cylinder head for a water-called internal combustion engine has a combustion space. Due to radiant heat in the combustion space, a hot site develops at a wall in a cooling duct of the cylinder head, through which cooling water is flowing. Control measures are provided for a concerted flow of cooling water in the cooling duct and for cooling the hot site at the wall of said cooling duct.

Cylinder head for a water-cooled internal combustion engine

Valve seat inserts of a four-cycle internal-combustion engine are cooled by the lubricating oil of the oil circulating system. An oil duct extending in the camshaft housing is bored in such a manner that the lubricating oil flows from the oil duct into a ring duct surrounding the valve seat inserts. By means of a projection which closes off the ring duct, a forced flow around the valve seat insert is achieved before the lubricating oil flows out of the ring duct through an opening located close to the lubricating oil inlet. From the ring duct the lubricating oil flows through a discharge pipe to the camshaft where it is sprayed on the cams.

Cooling system for I.C.E. valve seat inserts

Sparks are generated in the ignition distributor of an internal combustion engine during the interruption of the high voltage current which lead to the formation of ozone. In order to remove this ozone causing strong oxidation and corrosion, rapidly out of the ignition distributor, the distributor housing is connected to the charging air line leading from the turbocharger to the cylinder head of the internal combustion engine and is scavenged by charging air.

Multi-cylinder internal combustion engine with externally applied

A valve guidance for an exhaust gas valve in the form of a disk valve of an internal combustion engine which is used for the control of an exhaust gas channel of an internal combustion engine; a guide body with good heat-conducting and sliding properties serves as valve guidance. The guide body is coated at the inlet place of the valve stem either with a hard metal coating applied by plasma-spray process or with a hard metal sleeve.

Valve guidance for an exhaust gas valve of an internal combustion engine

An air-cooled multi-cylinder internal combustion engine includes cylinder heads cast together in a cylinder head casting; the cylinder heads are cooled from the inside by an S-shaped air flow extending between the valves. The cooling air thereby flows-in through an inlet channel at the inlet side of the cylinder heads, is deflected through 90.degree. in a central connecting channel and after a once-more 90.degree. deflection flows into the atmosphere through outlet channels which are formed between the individually cast exhaust gas outlet channels.

Air-cooled multi-cylinder internal combustion engine

The cam shaft carried in the cylinder head is driven by the crank shaft with a gear drive that is borne or supported partly in the crank housing and partly in a gear housing flangely attached to the crank housing. In order to compensate for the thermal induced increase in the distance of the cam shaft with respect to the crank shaft and to hold the torsional flank play at the gear teeth constant, the gear wheel engaging with the cam shaft gear wheel is arranged on a line extending approximately perpendicularly to the connection line between the cam shaft and the crank shaft.

Cam shaft drive of an internal combustion engine

A reciprocating lens-like combustion space is formed in a piston internal combustion engine which is located with approximately one-half in a recess of the piston top and with approximately the other half in the cylinder head. By the dimensioning of the combustion space and the coordination thereof to the inlet and exhaust valve, a vortex flow is produced with a ring-shaped mixing zone of high fuel concentration, in which the ignition electrodes of two spark plugs are arranged diametrally opposite one another.

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Wimsheim, Germany

Michael Beer