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

Johannes Wuest

Maximilian Fischer

Herbert Ampferer

Robert Mueller

Dieter Nowak

Michael Muddemann

A turbocharger for an internal combustion engine has a housing () in which elements () are arranged. An optical duct () is formed in the housing () and is assigned to at least one of the elements (). The optical duct () is assigned an infrared detector () that is designed to detect infrared radiation () from the at least one element () through the optical duct () to determine a temperature (T) of the at least one element ().

Turbocharger

A cylinder head assembly for an internal combustion engine has a housing () in which a plurality of elements () are arranged. An optical duct () is formed in the housing () and is assigned to at least one of the elements (). The optical duct () is assigned an infrared detector () that is designed to detect infrared radiation () from the at least one element () through the optical duct () to determine a temperature (T) of the at least one element ().

Cylinder head assembly

The crankshaft bearing for an internal combustion engine consists of two bearing sections bolted together, in which an insert made of a ferrometallic material is embedded in a casting made of a light metal alloy. The inserts consist of shaped molded parts with openings and thickenings as well as a semicircular carrier that receives the respective part of the bearing bore. The inserts are traversed by the bearing bolts, which on one side abut the outer bolt surfaces on the casting of one bearing section and are bolted into the casting of the other bearing section.

Crankshaft bearing for an internal combustion engine

The crankshaft bearing of a multicylinder internal combustion engine has an upper and a lower bearing part, as well as upper and lower bearing brackets with bearing bores connected therewith, in which brackets the main bearing pins of a crankshaft are mounted. The main bearing pins of the crankshaft are supplied with lubricant through oil grooves in the bearing bores. In order to guide the oil escaping from the bearing locations, which oil is flung-off by the rotating crankshaft cheeks, oil grooves are provided on the lateral surfaces of the bearing brackets. The groves are open on their radial interiors and drain downward in the installed position. This prevents severe foaming of the oil, since the oil flung-off the crankshaft can be captured directly and guided. The residence time of the oil in the crank chamber is reduced so that the oil flows more rapidly back into the oil pan and churning losses are reduced.

Crankshaft bearing of a multicylinder internal combustion engine

A crankshaft bearing for internal-combustion engines is provided in an internal-combustion engine housing made of a light metal alloy and comprises a bearing bore for a crankshaft journal of a crankshaft. The crankshaft bearing is provided with a device that reduces the increase in bearing play that occurs during the operation of the internal-combustion engine. This device includes a compensating element which is provided between the bearing bore and the crankshaft journal and has a relatively high coefficient of expansion.

Growing community of inventors

Weissach-Flacht, Germany

Johannes Wuest