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US 2004/0056112 A1Published application
Device for mixing fluids
AssigneeRobert Bosch GmbH
InventorsIan Faye, Thanh-Hung Nguyen-Schaefer
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AssigneeRobert Bosch GmbH
InventorsIan Faye, Thanh-Hung Nguyen-Schaefer
Estimating the term…
A device for mixing fluids, in particular a gas injection valve, nozzle valve, mixing nozzle or jet compressor, is proposed. To that end, a first fluid-carrying device (12) for carrying a first fluid and a second fluid-carrying device (13) for carrying a second fluid are provided; the fluids are mixed with one another in a mixing region (16) that is in communication with the fluid-carrying devices (12, 13). In addition, a means (20) for generating turbulence in the applicable fluid and a heater, with which the fluid can be heated before reaching the mixing region (16), disposed downstream of the means (20) for generating turbulence in terms of the flow direction of the applicable fluid are associated with at least one of the fluid-carrying devices (12, 13). The proposed device is used in particular for mixing hydrogen and saturated steam and to deliver this mixture to a fuel cell.
A device for mixing fluids, in particular a gas injection valve, mixing nozzle or jet compression nozzle, having a first fluid-carrying device (12) for carrying a first fluid and a second fluid-carrying device (13) for carrying a second fluid, wherein 1] the fluids are mixed with one another in a mixing region (16) that is in communication with the fluid-carrying devices (12, 13), and wherein a means (20) for generating turbulence in the applicable fluid and a heater, with which the fluid is heatable before reaching the mixing region (16), downstream of the means (20) for generating turbulence in terms of the flow direction of the applicable fluid are associated with at least one of the fluid-carrying devices (12, 13).
The device of one of the foregoing claims, characterized in that the heater is disposed directly downstream of the means (20) for generating turbulence, and in particular is spaced apart parallel from it.
The device of one of the foregoing claims, characterized in that the heater is an electric heater, and it has a heating wire (14, 14′) or heating ring, or an arrangement of heating wires (14, 14′) or heating rings.
The device of one of the foregoing claims, characterized in that the first fluid-carrying device (12) is formed at least in some regions by an in particular cylindrically symmetrical recess in a base body (18), which recess discharges into a central conduit (23) made in the base body (18).
The device of one of the foregoing claims, characterized in that the first fluid-carrying device (12) and/or the second fluid-carrying device (13) has at least approximately the shape of a funnel, a cartridge, or a nozzle.
The device of one of the foregoing claims, characterized in that the second fluid-carrying device (13) sprays the second fluid carried in it into the central conduit (23) in the mixing region (16) and thereby mixes it with the first fluid carried in the first fluid-carrying device (12).
The device of one of the foregoing claims, characterized in that at least one of the fluid-carrying devices (12, 13) is provided in at least some regions superficially with a coating (25), in particular of Teflon, which counteracts an adhesion, precipitation, or condensation of the applicable fluid or ingredients contained therein.
The use of the device of one of the foregoing claims as a gas injection valve, nozzle valve, jet compressor, or delivering fuel in a fuel cell, in particular for mixing hydrogen and steam.
Dependencies are inferred from the claim text.