Caterpillar Motoren Gmbh & Co. Kg

Hx Holding Gmbh

Gea Heat Exchangers Gmbh

Michael Sturm

Eike Joachim Sixel

Daniel Wester

Volker Abraham

Carsten Rickert

Markus Krueger

Helge Seidel

Torben Gravert

Jan Borchardt

Udo Schlemmer-Kelling

Dietmar Krauss

Hauke Holst

Ole Ehlert

Udo Wachtel

Andreas Banck

Jan Dreves

Hendrik Johannes Lange

Marius Wolfgramm

Benjamin Wagener

Gerd Hannemann

The present invention relates to a charge air cooling unit comprising a first charge air cooler having a first end face provided with a first cooling fluid inlet and a first cooling fluid outlet and a second charge air cooler having a second end face provided with a second cooling fluid inlet and a second cooling fluid outlet. Specifically, the second charge air cooler is arranged adjacent to the first charge air cooler such that the first end face and the second end face are oriented in the same direction. Further, the charge air cooling unit comprises a manifold unit connected to the first end face and the second end face for guiding a cooling fluid through the first charge air cooler and the second charge air cooler.

Charge air cooling unit for a two-staged turbocharger

A two-stage turbocharged internal combustion engine comprises a low-pressure stage turbocharger mounted at a first end side of an engine block and a high-pressure stage turbocharger mounted at the same first end side of the engine block. The respective turbochargers are mounted via a mounting structure, Which also accommodates the charge air coolers associated with the turbochargers. In order to obtain a compact arrangement and reduce a length of pipe connections between the different components, the different charge air coolers are mounted to mounting structure such that they overlap in a plan view of the internal combustion engine. Further, flow directions of charge air in the different charge air coolers are opposite to each other.

Two-stage turbocharged internal combustion engine

A method for operating an engine is disclosed. The method may include supplying air from a primary air supply unit to an intake conduit. The method may also include supplying air to the engine from the intake conduit. The method may further include selectively supplying air from a secondary air supply unit to the intake conduit. In addition, the method may include maintaining an air fuel ratio between a first threshold value and a second threshold value during an increase in engine load increase by controlling a supply of air from the secondary supply unit to the intake conduit.

Method for operating an engine

For exhaust gas recirculation in internal combustion engines operating, for example, with low sulphur marine diesel oil, an exhaust gas cooler with a cooling unit may be applied that uses a liquid injection system to maintain clean and/or clean a cooling surface of the cooling unit. The liquid injection system may provide liquid into an exhaust gas passage upstream of and or along a condensation starting region the cooling surface, thereby reducing the formation of films and deposits from particulate matter and condensing liquid of an evaporated liquid within the exhaust gas such as sulphuric acid and/or water, as those deposits could otherwise at least partially block the exhaust gas cooler.

Exhaust gas cooler

Growing community of inventors

Neuwittenbek, Germany

Michael Sturm