Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr

Ykk Corporation

Daniel Reitebuch

Olaf Magnor

Matthias Schultalbers

Wolfram Gottschalk

Daniel Beese

Joachim Seydell

Malte Koeller

Frank Stegemann

Franziska Schulz

Markus Seemayer

Malte KÖLLER

A method is used for determining an operating point of a compressor that includes at least one impeller, compressor blades attached to the impeller, a housing and at least two sensors. The method includes calculating a deflection of the compressor blades. An operating point and a surge margin with respect to a surge limit are determined based on the calculating of the deflection by measuring passage times of the compressor blades at a sensor. A signal that is representative of a rotation speed is determined and is associated with the compressor impeller. In a learning or adaptation mode, compressor blade-specific, state-induced and position-induced deviations from an ideal state are determined using compressor blade-specific passage times that are measured and compared with ideal passage times. In a working mode, compressor blade-specific passage times are measured and the compressor blade-specific passage times are corrected using the determined state-induced and position-induced deviations.

Device and method for reliably operating a compressor at the surge limit

A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.

Tank ventilation and cooling system for hybrid vehicles

A system provides reliable tank ventilation, particularly in the case of supercharged internal combustion engines, while also assuring efficient operation of the internal combustion engine. A tank is connected with an adsorption filter by way of a first tank ventilation line. The adsorption filter is connected with the intake line of the internal combustion engine by way of a second tank ventilation line. A drive apparatus includes a turbine wheel and a pump wheel coupled with one another. The pump wheel is disposed in the second tank ventilation line. The turbine wheel is disposed in a bridging line branching off from the intake line and flowing into the intake line. The bridging line branches off from the intake line downstream from a compressor disposed in the intake line.

Apparatus for tank ventilation

Growing community of inventors

Berlin, Germany

Daniel Reitebuch