Robert Boschgmbh

Rainer Saliger

Jan-Michael Graehn

Ian C Faye

Ulrich Gottwick

Frank Brenner

Martin Moeller

Kai Kroeger

Juergen Binder

Eberhard Schoch

Thanh-Hung Nguyen-Schaefer

Jens Intorp

Frank Baumann

Gunter Wiedemann

Thomas Hebner

Arthur Schaefert

Thomas Heid

Markus Koberstaedt

Markus Backes

A fuel cell system has at least one fuel cell unit for generating electrical energy, a unit for storing or dispensing electrical energy, an electrical consumer for consuming electrical energy, a diagnostic unit for ascertaining a functional capability of the at least one fuel cell unit during a diagnosis phase, and a control unit for determining an electrical power generated at least during the diagnosis phase by the at least one fuel cell unit.

Fuel cell system with fuel cell unit having means for storing or dispensing electrical energy

A fuel cell device has a fuel cell, a hydrogen storage, and a hydrogen burner supplied from said hydrogen storage.

Fuel cell device

A fuel cell device has a fuel cell unit including at least two fuel cell elements which are coupled with one another in a way selected from the group consisting of a series coupling, a parallel coupling, and both, for conversion of chemical energy into an electrical energy, and an electronic control unit for controlling individual fuel cell elements of the fuel cell unit.

An apparatus for converting energy can be operated with gaseous fuel, in particular a fuel cell assembly with a fuel cell, a fuel reservoir, and consumers, adjusters, sensors, and a monitoring unit. The monitoring unit ascertains consumption by the fuel cell and/or monitors components required for its operation.

Apparatus for converting energy that can be operated with fuel, in particular fuel cell assembly

A vehicle with a device () for converting chemical energy into electrical and/or mechanical energy, in particular a fuel cell unit () and/or combustion device (), such as a diesel or gas engine (), whereby at least one oxygen-containing source mixture is proved. The efficiency of the energy conversion, in particular, for protection of the environment, is improved relative to the state of the art. This is achieved according to the present invention, in that a separator () for separating off at least one oxygen-enriched fluid () from a fluid residue () of the source mixture () is provided.

Vehicle with energy converter

The fuel cell system has a fuel cell unit and a catalytically active reactor unit () for at least partial chemical transformation of an operating medium stream (), especially a reformer, gas purifier stage and/or a combustor, in which the catalytically active reactor unit () has a variable catalytically active reactor volume () acted on by the operating medium stream. To provide the fuel cell system with a higher efficiency and good dynamic behavior the catalytically active reactor unit is provided with at least one control device () for controlling and/or for changing the variable catalytically active reactor volume () acted on by the operating medium stream (). In a preferred embodiment the control device includes a first valve () for the reactor unit arranged downstream of the maximum reactor volume and a second valve () connected with the reactor unit upstream of the first valve, so that, when the second valve is opened and the first valve is closed, the operating medium stream () passes through an effective reactor volume that is smaller than the maximum reactor volume.

Fuel cell system including a catalytically active reactor unit with flow control means

Disclosed is a fuel cell system with a control unit () for controlling and/or regulating at least one fuel cell unit (), whereby the fuel cell unit () includes at least one membrane monitored by the control unit (), and an electrical load () is provided, in particular an electric drive motor and/or at least one load on the vehicle electrical system, whereby the moistening of the fuel cell membrane is improved. This is achieved according to the present invention by the fact that the control unit () includes at least one additional electrical load () for an additional power output from the fuel cell unit () which is dependent at least on the moistening of the membrane.

Fuel cell system with a control unit

The fuel cell apparatus has a fuel cell (), a pressurized fuel tank () for supplying fuel at a supply pressure and a pressure-reducing unit () for reducing the supply pressure to an operating pressure of the fuel cell. In order to improve the overall efficiency of the unit in comparison to the art the pressure-reducing unit () is constructed as a cooling apparatus for cooling at least one cooling element, preferably a condenser ().

Fuel cell apparatus with pressurized fuel tank and pressure-reducing unit for supplying fuel at a reduced operating pressure

A vehicle having a combustion engine, a fuel cell device having a fuel cell unit, a compressed air storage for supply of a compressed air, a supply conduit provided between the fuel cell unit of the fuel cell device and the compressed air storage, for supplying the fuel cell unit with compressed air, and a further supply conduit provided between the combustion engine and the compressed air storage for supply of the combustion engine with compressed air.

Vehicle with a combustion engine and a fuel cell device

A safety system for a gas-operated apparatus for generating energy, in particular in a vehicle, includes at least one sensor for measuring the gas concentration. The sensor is preferably disposed in the passenger compartment of the vehicle. In the event of a dangerously high gas concentration, a fan and/or power window control is triggered via a control unit in such a way that the fastest possible air exchange in the passenger compartment of the vehicle results.

Growing community of inventors

Bamberg, Germany

Rainer Saliger