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1. WO2020200670 - CONVEYOR UNIT FOR A FUEL CELL SYSTEM FOR CONVEYING AND/OR CONTROLLING A GASEOUS MEDIUM

Publication Number WO/2020/200670
Publication Date 08.10.2020
International Application No. PCT/EP2020/056422
International Filing Date 11.03.2020
IPC
F04F 5/16 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
5Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
14the inducing fluid being elastic fluid
16displacing elastic fluids
F04F 5/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
5Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
14the inducing fluid being elastic fluid
16displacing elastic fluids
20for evacuating
F04F 5/54 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
5Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
54Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
H01M 8/04089 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04082Arrangements for control of reactant parameters, e.g. pressure or concentration
04089of gaseous reactants
CPC
F04F 5/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
5Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
14the inducing fluid being elastic fluid
16displacing elastic fluids
F04F 5/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
5Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
14the inducing fluid being elastic fluid
16displacing elastic fluids
20for evacuating
F04F 5/54
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
5Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
54Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
H01M 8/04097
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04082Arrangements for control of reactant parameters, e.g. pressure or concentration
04089of gaseous reactants
04097with recycling of the reactants
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • RICHTER, Armin
Priority Data
10 2019 204 723.803.04.2019DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) FÖRDERAGGREGAT FÜR EIN BRENNSTOFFZELLEN-SYSTEM ZUR FÖRDERUNG UND/ODER STEUERUNG EINES GASFÖRMIGEN MEDIUMS
(EN) CONVEYOR UNIT FOR A FUEL CELL SYSTEM FOR CONVEYING AND/OR CONTROLLING A GASEOUS MEDIUM
(FR) UNITÉ DE REFOULEMENT POUR SYSTÈME DE PILE À COMBUSTIBLE DESTINÉE AU REFOULEMENT ET/OU À LA COMMANDE D'UN MILIEU GAZEUX
Abstract
(DE)
Förderaggregat (1) für ein Brennstoffzellen-System (31) zur Förderung und/oder Steuerung eines gasförmigen Mediums, insbesondere Wasserstoff, mit einer von einem Treibstrahl eines unter Druck stehenden gasförmigen Mediums angetriebenen Strahlpumpe (4) und einem Dosierventil (6), wobei ein Ausgang des Förderaggregats (1) mit einem Anodeneingang (15) einer Brennstoffzelle (29) fluidisch verbunden ist, wobei die Strahlpumpe (4) einen Ansaugbereich (7), ein Mischrohr (18) und einen Diffusor (20) aufweist, wobei der Diffusor (20) zumindest mittelbar mit dem Anodeneingang (15) der Brennstoffzelle (29) fluidisch verbunden ist und wobei die Strahlpumpe (4) zumindest teilweise in Richtung einer ersten Strömungsrichtung (V), die parallel zu einer ersten Längsachse (39) des Mischrohrs (18) verläuft, vom gasförmigen Medium durchströmt wird. Erfindungsgemäß verläuft dabei eine zweite Längsachse (40) des Diffusors (20) geneigt zur ersten Längsachse (39) des Mischrohrs (18) oder gekrümmt.
(EN)
The invention relates to a conveyor unit (1) for a fuel cell system (31) for conveying and/or controlling a gaseous medium, in particular hydrogen, comprising a jet pump (4), which is driven by a propulsion jet of a pressurized gaseous medium, and a metering valve (6), an outlet of the conveyor unit (1) being fluidically connected to an anode inlet (15) of a fuel cell (29). The jet pump (4) has a suction region (7), a mixing tube (18), and a diffuser (20), wherein the diffuser (20) is at least indirectly fluidically connected to the anode inlet (15) of the fuel cell (29), and the gaseous medium flows through the jet pump (4) at least partly in the direction of a first flow direction (V) which runs parallel to a first longitudinal axis (39) of the mixing tube (18). According to the invention, a second longitudinal axis (40) of the diffuser (20) is curved or inclined relative to the first longitudinal axis (39) of the mixing tube (18).
(FR)
L’invention concerne une unité de refoulement (1) pour un système de pile à combustible (31) permettant de refouler et/ou de commander un milieu gazeux, en particulier de l’hydrogène, et comprenant une pompe à jet (4) entraînée par un jet propulseur d’un milieu gazeux sous pression et une soupape de dosage (6). Une sortie de l’unité de refoulement (1) est en liaison fluidique avec une entrée d’anode (15) d’une pile à combustible (29). La pompe à jet (4) comprend une conduite d’aspiration (7), un tube mélangeur (18) et un diffuseur (20), le diffuseur (20) étant en liaison fluidique au moins indirectement avec l’entrée d’anode (15) de la pile à combustible (29). La pompe à jet (4) est traversée au moins en partie par le milieu gazeux dans la direction d’un premier sens d’écoulement (V) qui est parallèle à un premier axe longitudinal (39) du tube mélangeur (18). Selon l’invention, un second axe longitudinal (40) du diffuseur (20) est incliné par rapport au premier axe longitudinal (39) du tube mélangeur (18) ou courbé.
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