Eth Zurich

Robert Boschgmbh

Bayerische Motoren Werke Aktiengesellschaft

Umicore Ag & Co Kg

Université D'orleans

Lino Guzzella

Christopher Harald Onder

Peter Spring

Martin Rauscher

Christian Dönitz

Christoph Voser

Yann Chamaillard

Gregor Ochsner

Juergen Gieshoff

Raffael Amacher

Marianne Schmid Daners

Norbert Zsiga

Christian Doenitz

Julian Vasile

Pascal Higelin

Alain Charlet

Roman Moeller

Christian Donitz

Christian DÖNITZ

A method for operating an internal-combustion engine includes increasing a torque demand, controlling a throttle valve, opening an air injection valve and continuously measuring first and second gas pressures with an electronic control unit. The method also includes closing the throttle valve, measuring a first gas mass flow, retarding an ignition angle, and closing the air injection valve. In the method the throttle valve is opened with the control unit when the first gas pressure pequals the second gas pressure p. The method also includes continuously controlling the fuel system with the electronic control unit to have a stoichiometric fuel/air ratio of the internal combustion engine being constantly combusting in the internal combustion engine.

Method for operating a spark ignition internal combustion engine with an exhaust gas turbocharger

A biomedical apparatus for pumping blood of a human or an animal patient through a secondary blood circuit is provided, including a blood pump (), an inlet duct () and an outlet duct () for guiding blood of the patient to the blood pump () and back to the patient. The device further includes a measuring device () for measuring a physical parameter of the heart () or of a blood vessel, and a controller () for regulating the power of the blood pump (). The measuring device () is adapted to be arranged inside the heart () or the blood vessel, and the controller is configured to determine an estimate for an inner volume of the heart () or of the blood vessel based on the physical parameter and is configured to regulate the power of the blood pump () depending on this estimate.

Biomedical apparatus for pumping blood of a human or an animal patient through a secondary intra- or extracorporeal blood circuit

The present invention relates to a turbocharged reciprocating piston engine, and to a method for operating said engine. The combustion chamber includes at least one inlet valve (), one outlet valve () and at least one additional charging valve (), for the additional feed of compressed air to bridge the turbo lag, that are each operatively connected to the crankshaft via a camshaft and the operative connection of the charging valves to the crankshaft can be deactivated, with the result that the at least one charging valve () remains closed. An approximately stoichiometric combustion mixture is achieved by a turbocharger () and a throttle valve (). By displacement of the opening instant of the charging valves (), air can be pumped from the cylindrical combustion chambers into the compressed air tank (). An additional compressor () can likewise deliver air into the compressed air tank ().

Turbocharged reciprocating piston engine having a connected pressure tank for bridging turbo lag, and method for operating said engine

The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically interconnected to a crank shaft via a piston rod. An inlet valve and an exhaust valve are both mechanically interconnected via a valve gear to the crank shaft. The engine further includes at least one charge valve which is actuated by a charge valve actuator in a fully variable manner such that the engine can be operated in a four stroke hybrid mode.

Pneumatic hybrid internal combustion engine on the basis of fixed camshafts

In an internal combustion engine, fresh air is compressed by a pressure-wave supercharger. At least one operating parameter of the pressure-wave supercharger is controlled or regulated as a function of at least one actual operating variable of the internal combustion engine.

Method for operating an engine with a pressure-wave supercharger

Method of operating an engine with a pressure-wave supercharger

Growing community of inventors

Uster, Switzerland

Lino Guzzella