DE102010043622A1 - Proportional valve for use in fuel cell assembly of vehicle for controlling gaseous medium, particularly supply of hydrogen to fuel cell, has nozzle body with two passage openings and closing element - Google Patents
Proportional valve for use in fuel cell assembly of vehicle for controlling gaseous medium, particularly supply of hydrogen to fuel cell, has nozzle body with two passage openings and closing element Download PDFInfo
- Publication number
- DE102010043622A1 DE102010043622A1 DE201010043622 DE102010043622A DE102010043622A1 DE 102010043622 A1 DE102010043622 A1 DE 102010043622A1 DE 201010043622 DE201010043622 DE 201010043622 DE 102010043622 A DE102010043622 A DE 102010043622A DE 102010043622 A1 DE102010043622 A1 DE 102010043622A1
- Authority
- DE
- Germany
- Prior art keywords
- outflow
- closing element
- valve housing
- proportional valve
- openings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title claims description 15
- 239000001257 hydrogen Substances 0.000 title claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
Abstract
Description
Stand der TechnikState of the art
Die vorliegende Erfindung betrifft ein Proportionalventil zum Steuern eines gasförmigen Mediums, insbesondere Wasserstoff, und insbesondere zur Anwendung in Fahrzeugen mit Brennstoffzellenantrieb.The present invention relates to a proportional valve for controlling a gaseous medium, in particular hydrogen, and in particular for use in vehicles with fuel cell drive.
Im Fahrzeugbereich spielen neben flüssigen Kraftstoffen in Zukunft auch gasförmige Kraftstoffe eine zunehmende Rolle. Insbesondere bei Fahrzeugen mit Brennstoffzellenantrieb müssen Wasserstoffgasströme gesteuert werden. Die Gasströme werden hierbei nicht mehr diskontinuierlich wie bei der Einspritzung von flüssigem Kraftstoff gesteuert, sondern es werden insbesondere Proportionalventile eingesetzt, die in Abhängigkeit von einer gewünschten Antriebsleistung einen Öffnungsquerschnitt des Ventils anpassen.In the vehicle sector, in addition to liquid fuels, gaseous fuels will also play an increasing role in the future. In particular, in vehicles with fuel cell drive hydrogen gas flows must be controlled. The gas flows are no longer controlled discontinuously as in the injection of liquid fuel, but in particular proportional valves are used, which adjust an opening cross-section of the valve depending on a desired drive power.
Hierbei sollten insbesondere im Abströmbereich der Proportionalventile möglichst geringe Drosselverluste entstehen. Auch sollte das Proportionalventil möglichst einfach und kostengünstig herstellbar sein.In this case, as small as possible throttle losses should arise, especially in the outflow region of the proportional valves. Also, the proportional valve should be as simple and inexpensive to produce.
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Proportionalventil zum Steuern eines gasförmigen Mediums mit den Merkmalen des Anspruchs 1 weist demgegenüber den Vorteil auf, dass eine Reduzierung von Drosselverlusten in einem Abströmbereich des Proportionalventils möglich ist. Ferner ist eine vereinfachte Montage des Proportionalventils möglich, da eine aufwendige Ausrichtung von einzelnen Bauteilen zueinander nicht notwendig ist. Dies wird erfindungsgemäß dadurch erreicht, dass das Proportionalventil zum Steuern eines gasförmigen Mediums, insbesondere Wasserstoff, einen Düsenkörper, in welchem wenigstens zwei Durchlassöffnungen ausgebildet sind, ein Schließelement zum Freigeben und Verschließen der Durchlassöffnung und ein Ventilgehäuse umfasst, wobei das Schließelement im Ventilgehäuse angeordnet ist. Das Ventilgehäuse weist eine Mehrzahl von radialen Ausströmöffnungen auf. Im Schließelement ist ferner eine axiale Abströmbohrung sowie eine Mehrzahl von radialen Abströmbohrungen ausgebildet. Hierbei ist eine Anzahl der radialen Ausströmöffnungen im Ventilgehäuse ungleich einer Anzahl von radialen Abströmbohrungen im Schließelement. Diese erfindungsgemäßen Maßnahmen stellen ferner sicher, dass eine reduzierte Streuung der Durchflussmengen der Proportionalventile erreicht wird. Hierdurch können insbesondere bei einer Serienherstellung aufwendige Durchflussmengentests der Proportionalventile entfallen. Auch wird ein Montagevorgang erleichtert, da keine Ausrichtung von Schließelement und Ventilgehäuse in Umfangsrichtung zueinander notwendig ist. Als gasförmiges Medium wird vorzugsweise Wasserstoff verwendet, welches einer Brennstoffzelle zugeführt wird.The proportional valve according to the invention for controlling a gaseous medium with the features of claim 1 has the advantage over that a reduction of throttle losses in a discharge area of the proportional valve is possible. Furthermore, a simplified mounting of the proportional valve is possible because a complex alignment of individual components to each other is not necessary. This is inventively achieved in that the proportional valve for controlling a gaseous medium, in particular hydrogen, a nozzle body, in which at least two passage openings are formed, a closing element for releasing and closing the passage opening and a valve housing, wherein the closing element is arranged in the valve housing. The valve housing has a plurality of radial outflow openings. In the closing element further comprises an axial outflow bore and a plurality of radial outflow holes is formed. Here, a number of the radial outflow openings in the valve housing is not equal to a number of radial outflow holes in the closing element. These inventive measures also ensure that a reduced dispersion of the flow rates of the proportional valves is achieved. As a result, costly flow quantity tests of the proportional valves can be dispensed with, in particular during series production. Also, an assembly process is facilitated because no alignment of closing element and valve housing in the circumferential direction is necessary to each other. The gaseous medium used is preferably hydrogen, which is supplied to a fuel cell.
Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung.The dependent claims show preferred developments of the invention.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist die Anzahl der Abströmbohrungen am Schließelement kein Vielfaches der Anzahl der Ausströmöffnungen am Ventilgehäuse. Alternativ ist die Anzahl der Ausströmöffnungen am Ventilgehäuse kein Vielfaches der Anzahl der Abströmbohrungen am Schließelement. Durch diese Maßnahmen wird eine ungünstige Anordnung der Abströmbohrungen zu den Ausströmöffnungen vermieden.According to a preferred embodiment of the invention, the number of outflow holes on the closing element is not a multiple of the number of outflow openings on the valve housing. Alternatively, the number of outflow openings on the valve housing is not a multiple of the number of outflow holes on the closing element. By these measures, an unfavorable arrangement of the outflow holes is avoided to the outflow.
Weiter bevorzugt ist die Anzahl der Abströmbohrungen am Schließelement kleiner als die Anzahl der Ausströmöffnungen am Ventilgehäuse. Dies stellt eine besonders gute Strömung im Abströmbereich des Proportionalventils bereit, da bei geöffnetem Proportionalventil das Medium nicht nur durch die Abströmbohrung im Schließelement strömt, sondern auch an der Unterseite seitlich vorbei. Somit ist ungefähr ein Massenstrom am Schließelement oder ein Massenstrom durch die Ausströmöffnung im Ventilgehäuse gleich groß. Vorzugsweise sind drei Abströmbohrungen am Schließelement und vier oder fünf Ausströmöffnungen am Ventilgehäuse vorgesehen. Alternativ sind bevorzugt zwei Abströmbohrungen am Schließelement und drei Ausströmöffnungen am Ventilgehäuse vorgesehen.More preferably, the number of outflow holes on the closing element is smaller than the number of outflow openings on the valve housing. This provides a particularly good flow in the outflow region of the proportional valve, since with the proportional valve open, the medium not only flows through the outflow bore in the closing element, but also laterally past the underside. Thus, approximately a mass flow at the closing element or a mass flow through the discharge opening in the valve housing is the same size. Preferably, three outflow holes are provided on the closing element and four or five outflow openings on the valve housing. Alternatively, two outflow holes are preferably provided on the closing element and three outflow openings on the valve housing.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung umfasst das Proportionalventil ferner eine Ventilaufnahme, in welcher das Ventilgehäuse zumindest teilweise angeordnet ist. Die Ventilaufnahme umfasst wenigstens einen Ringkanal und einen Abströmkanal. Die Ausströmöffnungen im Ventilgehäuse münden dabei in den Ringkanal und der Abströmkanal führt das Medium aus dem Ringkanal fort. Somit dient der Ringkanal als Sammelring, in welchen das Medium aus den Ausströmöffnungen im Ventilgehäuse strömt. Dabei ist bei der Montage des Ventilgehäuses in die Ventilaufnahme keine Ausrichtung des Ventilgehäuses in Umfangsrichtung notwendig, da der Ringkanal das zugeführte Medium strömungsgünstig zum Abströmkanal führt. Bevorzugt weist der Ringkanal eine Querschnittsfläche von größer oder gleich 20 mm2 auf.According to a further preferred embodiment of the invention, the proportional valve further comprises a valve receptacle in which the valve housing is arranged at least partially. The valve receptacle comprises at least one annular channel and a discharge channel. The outflow openings in the valve housing open into the annular channel and the outflow channel leads the medium away from the annular channel. Thus, the annular channel serves as a collecting ring, in which the medium flows from the outflow openings in the valve housing. In this case, no alignment of the valve housing in the circumferential direction is necessary during assembly of the valve housing in the valve seat, since the annular channel leads the medium supplied streamlined to the discharge channel. Preferably, the annular channel has a cross-sectional area of greater than or equal to 20 mm 2 .
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung sind alle Abströmbohrungen in unterschiedlichen radialen Richtungen ausgerichtet als die Ausströmöffnungen im Ventilgehäuse. Weiter bevorzugt sind bei vollständig geöffnetem Proportionalventil Mittelachsen der Abströmbohrungen des Schließelements und Mittelachsen der Ausströmöffnungen des Ventilgehäuses in einer gemeinsamen Ebene angeordnet. Hierdurch kann eine besonders verlustfreie Durchströmung von Schließelement und Ventilgehäuse ermöglicht werden.According to a further preferred embodiment of the invention, all outflow bores are aligned in different radial directions than the outflow openings in the valve housing. Further preferably, in the case of a fully opened proportional valve, central axes of the outflow bores of the closing element and central axes of the Outlet openings of the valve housing arranged in a common plane. This allows a particularly lossless flow through the closing element and the valve housing are made possible.
Weiterhin betrifft die Erfindung eine Brennstoffzellenanordnung mit einer Brennstoffzelle und mit einem erfindungsgemäßen Proportionalventil zur Steuerung von gasförmigem Wasserstoff.Furthermore, the invention relates to a fuel cell assembly with a fuel cell and with a proportional valve according to the invention for the control of gaseous hydrogen.
Zeichnungdrawing
Nachfolgend wird ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die begleitende Zeichnung im Detail beschrieben. In der Zeichnung ist:Hereinafter, an embodiment of the invention will be described in detail with reference to the accompanying drawings. In the drawing is:
Ausführungsform der Erfindung.Embodiment of the invention.
Nachfolgend wird unter Bezugnahme auf die
Wie aus
Wie weiter aus
Am Schließelement
Im Ventilgehäuse
Wie weiter aus
Wie weiter insbesondere aus
Der Ringkanal
Die Strömung des gasförmigen Mediums im Ringkanal
Somit wird erfindungsgemäß ein Proportionalventil
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010043622 DE102010043622A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve for use in fuel cell assembly of vehicle for controlling gaseous medium, particularly supply of hydrogen to fuel cell, has nozzle body with two passage openings and closing element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010043622 DE102010043622A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve for use in fuel cell assembly of vehicle for controlling gaseous medium, particularly supply of hydrogen to fuel cell, has nozzle body with two passage openings and closing element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010043622A1 true DE102010043622A1 (en) | 2012-05-10 |
Family
ID=45970939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010043622 Ceased DE102010043622A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve for use in fuel cell assembly of vehicle for controlling gaseous medium, particularly supply of hydrogen to fuel cell, has nozzle body with two passage openings and closing element |
Country Status (1)
Country | Link |
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DE (1) | DE102010043622A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019025069A1 (en) * | 2017-08-02 | 2019-02-07 | Robert Bosch Gmbh | Throttle for a hydraulic or pneumatic valve and/or for a hydraulic or pneumatic assembly |
WO2019025067A1 (en) * | 2017-08-02 | 2019-02-07 | Robert Bosch Gmbh | Throttle, hydraulic or pneumatic valve, and hydraulic or pneumatic assembly |
EP4194727A1 (en) * | 2021-12-08 | 2023-06-14 | Danfoss Power Solutions ApS | Shock-valve |
-
2010
- 2010-11-09 DE DE201010043622 patent/DE102010043622A1/en not_active Ceased
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019025069A1 (en) * | 2017-08-02 | 2019-02-07 | Robert Bosch Gmbh | Throttle for a hydraulic or pneumatic valve and/or for a hydraulic or pneumatic assembly |
WO2019025067A1 (en) * | 2017-08-02 | 2019-02-07 | Robert Bosch Gmbh | Throttle, hydraulic or pneumatic valve, and hydraulic or pneumatic assembly |
CN110892184A (en) * | 2017-08-02 | 2020-03-17 | 罗伯特·博世有限公司 | Throttle mechanism for a hydraulic or pneumatic valve and/or for a hydraulic or pneumatic assembly |
KR20200033317A (en) * | 2017-08-02 | 2020-03-27 | 로베르트 보쉬 게엠베하 | Throttle for hydraulic or pneumatic valves and / or hydraulic or pneumatic assemblies |
CN110892184B (en) * | 2017-08-02 | 2023-03-03 | 罗伯特·博世有限公司 | Hydraulic or pneumatic valves |
KR102571423B1 (en) * | 2017-08-02 | 2023-08-28 | 로베르트 보쉬 게엠베하 | Throttle for hydraulic or pneumatic valves and/or for hydraulic or pneumatic assemblies |
EP4194727A1 (en) * | 2021-12-08 | 2023-06-14 | Danfoss Power Solutions ApS | Shock-valve |
WO2023104542A1 (en) * | 2021-12-08 | 2023-06-15 | Danfoss Power Solutions Aps | Shock-valve |
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