Robert Boschgmbh

Alexander Hero

Armin Merz

Thomas Wieland

Peter Altermann

Ralph Leonard Fung

Disclosed is a delivery unit () for an anode circuit () of a fuel cell system () for delivering a gaseous medium, in particular hydrogen, from an anode region () of a fuel cell (), said delivery unit () comprising at least one jet pump () and being at least indirectly fluidically connected to the outlet of the anode region () by means of at least one connection line () and being fluidically connected to the inlet of the anode region () by means of an additional connection line (). According to the invention, in addition to the jet pump (), the delivery unit () comprises a recirculation fan () and a metering valve () as other components, and the flow contours of the components () for the gaseous medium and/or the components () are at least almost entirely arranged in a common housing ().

Delivery unit for an anode circuit of a fuel cell system for delivering a gaseous medium, and fuel cell system

Disclosed is a delivery unit () for an anode circuit () of a fuel cell system () for delivering a gaseous medium, in particular hydrogen, from an anode region () of a fuel cell (), said delivery unit () comprising at least one recirculation fan () and being at least indirectly fluidically connected to the outlet of the anode region () by means of at least one connection line () and being fluidically connected to the inlet of the anode region () by means of an additional connection line (). According to the invention, in addition to the recirculation fan (), the delivery unit () comprises a jet pump (), a metering valve () and a separator () as other components, and the flow contours of the components () for the gaseous medium are at least almost entirely arranged in a common housing ().

Delivery unit for an anode circuit of a fuel cell system for delivering a gaseous medium

The invention relates to a side-channel compressor () for a fuel cell system () for conveying and/or compressing a gas, particularly hydrogen, comprising a housing (), the housing () comprising a housing upper part () and a housing lower part (), a compressor chamber () located in the housing (), comprising at least one peripheral side channel (), a compressor wheel () arranged in the housing (), which is rotatably arranged about an axis of rotation (), the compressor wheel () comprising blades () arranged on the periphery thereof in the region of the compressor chamber (), and respectively a gas inlet () embodied in the housing and a gas outlet () which are fluidically interconnected by means of the compressor chamber (), particularly the at least one side channel (). According to the invention, the compressor wheel () comprises a peripheral stop ring () on the periphery thereof, which extends around the compressor wheel () in a rotationally symmetric manner in relation to the axis of rotation ().

Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous media

The invention relates to a side channel compressor () for a fuel cell system for conveying and/or compressing a gas, particularly hydrogen, comprising a housing () and a drive (), wherein the housing () has a housing upper part () and a housing lower part (), a compressor chamber () which is circulating in the housing () about an axis of rotation () and has at least one peripheral side channel (), a compressor wheel () located in the housing (), which is rotatably arranged about an axis of rotation () and is driven by the drive (), said compressor wheel () comprising blades () arranged on the periphery thereof in the region of the compressor chamber (), and comprising respectively a gas inlet opening () embodied on the housing () and a gas outlet opening () which are fluidically interconnected via the compressor chamber (), in particular the at least one side channel (). According to the invention, the drive () is designed as an axial field electric motor () which has a stator () and a rotor (), wherein the stator () and the rotor () have a disc-shaped design and are formed so as to move about the axis of rotation (), and wherein the stator () is arranged next to the rotor in the direction of the axis of rotation ().

Side channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium

Side-channel compressor () for a fuel cell system () for conveying and/or compressing a gas, in particular hydrogen, having a housing (), wherein the housing () has a housing upper part () and a housing lower part (), having a compressor chamber () which is situated in the housing () and which has at least one encircling side channel (), having a compressor wheel () which is situated in the housing () and which is disposed so as to be rotatable about a rotation axis (), wherein the compressor wheel () on the circumference thereof has blades () which are disposed in the region of the compressor chamber (), and having a gas inlet opening () and a gas outlet opening () which are in each case configured on the housing () and which by way of the compressor chamber (), in particular the at least one side channel (), are fluidically connected to one another. According to the invention, the compressor wheel () herein has at least one connection bore () which in a radial manner to the rotation axis () runs through at least one of the blades () and which connects an internal chamber () of the side-channel compressor () to a separation chamber ().

Growing community of inventors

Lehrensteinsfeld, Germany

Alexander Hero