Patent ID: 11894585
Assignee: ROBERT BOSCH GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  F  Y | IPC B  F  H

Claim 0:
1. A delivery unit (3) for an anode circuit (9) of a fuel cell system (1) for delivering a gaseous medium out of an anode region (38) of a fuel cell (2), wherein the delivery unit (3) comprises at least one jet pump (4), wherein the delivery unit (3) is at least indirectly fluidically connected by at least one connecting line (23, 25) to an outlet of the anode region (38), and wherein the delivery unit (3) is fluidically connected by a further connecting line (27) to an inlet of the anode region (38), wherein the delivery unit (3) further comprises a recirculation blower (8) and a dosing valve (6), wherein: (i) flow contours of the jet pump (4), dosing valve (6), and recirculation blower (8) for the gaseous medium are arranged entirely in a common housing (7) and/or (ii) the jet pump (4), dosing valve (6), and recirculation blower (8) are themselves arranged entirely in a common housing (7), and
wherein the recirculation blower (8) has a compressor wheel (12) with an encircling outer delimiting ring (39) which runs rotationally symmetrically with respect to an axis of rotation (48) of the compressor wheel (12), and wherein an at least partially encapsulated separation space (34), and/or a discharge channel (46), is/are situated in the common housing (7) of the delivery unit (3) on a side of the compressor wheel (12) which is averted from the axis of rotation (48).