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

Klaus Groger

Herbert Ampferer

Robert Binder

Walter Mittermeier

Volker Diehm

Hans Korkemeier

Jurgen Kapfer

An elastic pipe piece, which is arranged between the air filter and a throttle housing in the air intake section, in proximity of both ends, has one bellows respectively pointing to the outside. The bellows compensate tolerances and have a vibration-disconnecting effect. Two pipe sockets are contructed integrally with the pipe piece, a crankcase ventilating system or an idling adjuster being connected to these pipe sockets. In addition, in proximity of an accommodating means, a clamping fork is constructed integrally with the pipe piece, which accommodates the idling adjuster and fixes it in position.

Air intake section of an internal combustion engine

A guide rail, and method of making same, for the guiding and/or tightening of chains that are used in internal-combustion engines, for example, for driving camshafts, auxiliaries or the like is disclosed. For reasons concerning weight and manufacturing, the guide rail consists of a plastic material and is formed by a slideway lining body and a carrier. Both the carrier and the slideway lining body are produced in a progressive manufacturing cycle and are interconnected via one or several dovetailed connections.

Guide rail for drive chains

These crankshaft bearings consist of a light-metal alloy and are formed by a bearing section of a crankcase and a bearing cap. In order to avoid a bearing clearance causing noise, a core made of iron metal is poured at least into the bearing cap, said core, by means of a bearing area, directly surrounding the crankshaft journal of a crankshaft, and having lugs for bores connected by a transverse part. The bores are penetrated by the screws in order to fasten the bearing.

Crankshaft bearings for internal-combustion engines

A throttle valve for regulating the introduction of a fuel-air mixture into an internal-combustion engine is provided with a return spring system. The return spring system includes a first coiled spring, a second coiled spring, a hat-shaped bushing for separating the two spring coils and a lever, fixed in relation to a throttle valve housing, for simultaneously loading both spring coils to yieldably urge the throttle valve toward a normal position. The return spring system is positioned at one end of a shaft on which the throttle valve is mounted and operates to yieldably rotate the shaft in a selected direction to orient the throttle valve.

Pivotal closing member

An exhaust gas turbocharger is provided for an internal-combustion engine which is mounted on a bracket connecting the internal-combustion engine to a motor vehicle body. The bracket includes a device therein for defoaming and degasifying the lubricating oil medium leaving the exhaust gas turbocharger.

Growing community of inventors

Hemmingen, Germany

Klaus Groger