DE102010043641A1 - Proportional valve used in vehicle, has bar whose height along axial direction of main case is smaller than spacing between intake and outlet openings of passage apertures, which is provided between apertures - Google Patents
Proportional valve used in vehicle, has bar whose height along axial direction of main case is smaller than spacing between intake and outlet openings of passage apertures, which is provided between apertures Download PDFInfo
- Publication number
- DE102010043641A1 DE102010043641A1 DE102010043641A DE102010043641A DE102010043641A1 DE 102010043641 A1 DE102010043641 A1 DE 102010043641A1 DE 102010043641 A DE102010043641 A DE 102010043641A DE 102010043641 A DE102010043641 A DE 102010043641A DE 102010043641 A1 DE102010043641 A1 DE 102010043641A1
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- Germany
- Prior art keywords
- proportional valve
- webs
- valve according
- apertures
- depth
- 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 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 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
- 239000003345 natural gas Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
- F02M21/0266—Hollow stem valves; Piston valves; Stems having a spherical tip
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
- Lift Valve (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.
Da bei gasförmigen Medien die bei flüssigen Kraftstoffen vorhandene Benetzung des Dichtsitzes mit Kraftstoff entfällt, ergeben sich insbesondere Abdichtungsprobleme am geschlossenen Ventil sowie Strömungs- bzw. Durchsatzverluste am Ventilsitz bei geöffnetem Ventil. Aus der
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 betriebssichere Abdichtung des gasförmigen Mediums sichergestellt und eine Belastung des elastischen Dichtelements reduziert wird, so dass das Proportionalventil eine hohe Dauerbeständigkeit aufweist. Darüber hinaus kann das erfindungsgemäße Proportionalventil mit einer gleichmäßigen und niedrigen Öffnungskraft geöffnet und das gasförmige Medium mit reduzierten Strömungsverlusten und verbessertem Gasdurchsatz zugeführt werden. Dies wird erfindungsgemäß dadurch erreicht, dass das Proportionalventil zum Steuern eines gasförmigen Mediums, insbesondere Wasserstoff, einen Düsenkörper, in welchem wenigstens zwei Durchlassöffnungen ausgebildet sind, und ein Schließelement umfasst, welches die Durchlassöffnungen freigibt und verschließt, wobei jede der Durchlassöffnungen an einer Einlassseite eine Einlassmündung und an einer Auslassseite eine Auslassmündung aufweisen. In Umfangsrichtung ist zwischen den Durchlassöffnungen jeweils ein Steg ausgebildet. Hierbei ist eine Höhe der Stege in Axialrichtung des Düsenkörpers kleiner als ein Abstand zwischen der Einlassmündung und der Auslassmündung. Hierdurch wird eine verbesserte Gasströmung mit reduziertem Strömungswiderstand erreicht. 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
Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung.The dependent claims show preferred developments of the invention.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist eine Stirnseite der Stege an der Einlassseite und/oder der Auslassseite des Düsenkörpers im Schnitt U-förmig ausgebildet. Durch diese Formgebung wird ein homogener, widerstandsarmer Strömungsverlauf im Wesentlichen ohne Strömungsabrisse ermöglicht.According to a preferred embodiment of the invention, an end face of the webs on the inlet side and / or the outlet side of the nozzle body is U-shaped in section. This shaping enables a homogeneous, low-resistance flow course essentially without stalls.
Weiterhin bevorzugt geht die U-förmige Stirnseite der Stege der Auslassseite in einen ringförmig vorstehenden Ventilsitz über. Hierdurch werden ringförmige innere und äußere Dichtlippen am Ventilsitz gebildet, an denen eine linienförmige, gasdichte Abdichtung des Schließelements mit geringer Flächenpressung gewährleistet ist. Weiterhin bevorzugt ist der ringförmig vorstehende Ventilsitz mit einem Radius gebildet. Hierdurch resultiert eine weiter verbesserte Gasströmung. Ferner ist die Herstellung der Durchlassöffnungen samt dem ringförmig vorstehenden Ventilsitz sehr einfach und kostengünstig, z. B. durch Fräsen oder Stanzen, herstellbar. Vorzugsweise beträgt der Radius 0,1 bis 0,3 mm, besonders bevorzugt 0,2 mm.Further preferably, the U-shaped end face of the webs of the outlet side merges into an annular projecting valve seat. As a result, annular inner and outer sealing lips are formed on the valve seat, where a line-shaped, gas-tight sealing of the closing element is ensured with a low surface pressure. Further preferably, the annular projecting valve seat is formed with a radius. This results in a further improved gas flow. Furthermore, the production of the passage openings together with the annular projecting valve seat is very simple and inexpensive, z. B. by milling or punching, produced. The radius is preferably 0.1 to 0.3 mm, particularly preferably 0.2 mm.
In weiterer vorteilhafter Ausgestaltung der Erfindung weisen die Stege eine Höhe auf, welche ungefähr halb so groß ist wie der Abstand zwischen der Einlassmündung und der Auslassmündung der Durchlassöffnungen. Durch die verkürzte axiale Länge der Durchlassöffnungen wird die Drossellänge reduziert und eine erhebliche Reduzierung der Drosselverluste der Gasströmung erreicht. Dies resultiert in einem erhöhten, der Öffnung des Ventils entsprechenden homogenen proportionalen Gasdurchsatz und einer besseren Zuströmung an der Einlassseite. Weiterhin bevorzugt ist alternativ eine erste Tiefe an der Einlassseite im Bereich der Stege größer als eine zweite Tiefe im Bereich der Stege an der Auslassseite.In a further advantageous embodiment of the invention, the webs have a height which is approximately half as large as the distance between the inlet mouth and the outlet mouth of the passage openings. Due to the shortened axial length of the passage openings, the throttle length is reduced and achieved a significant reduction of the throttle losses of the gas flow. This results in an increased, proportional to the opening of the valve homogeneous proportional gas flow rate and a better inflow at the inlet side. Furthermore, a first depth on the inlet side in the region of the webs is preferably greater than a second depth in the region of the webs on the outlet side.
Vorzugsweise ist die Vertiefung an der Einlassseite im Bereich der Stege gleichgroß wie die Vertiefung an der Auslassseite. Durch die zentrisch zwischen der Einlassseite und Auslassseite ausgebildeten Stege werden identische Strömungsverhältnisse an der Einlass- sowie Auslassseite des Düsenkörpers erreicht. Ferner ermöglicht diese Formgebung eine besonders einfache zeit- und kosteneffiziente Fertigung des Düsenkörpers.Preferably, the recess on the inlet side in the region of the webs is the same size as the recess on the outlet side. By means of the webs formed centrally between the inlet side and outlet side, identical flow conditions are achieved at the inlet and outlet side of the nozzle body. Furthermore, this shaping allows a particularly simple time and cost-efficient production of the nozzle body.
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 ErfindungEmbodiment of the invention
Nachfolgend wird unter Bezugnahme auf die
Wie aus
Wie weiter aus
Am Schließelement
Im Ventilgehäuse
Wie aus
Wie detailliert aus
An der Einlassseite
Somit wird erfindungsgemäß ein Proportionalventil
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005056212 A1 [0003] DE 102005056212 A1 [0003]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010043641A DE102010043641A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve used in vehicle, has bar whose height along axial direction of main case is smaller than spacing between intake and outlet openings of passage apertures, which is provided between apertures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010043641A DE102010043641A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve used in vehicle, has bar whose height along axial direction of main case is smaller than spacing between intake and outlet openings of passage apertures, which is provided between apertures |
Publications (1)
Publication Number | Publication Date |
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DE102010043641A1 true DE102010043641A1 (en) | 2012-05-10 |
Family
ID=45970946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010043641A Ceased DE102010043641A1 (en) | 2010-11-09 | 2010-11-09 | Proportional valve used in vehicle, has bar whose height along axial direction of main case is smaller than spacing between intake and outlet openings of passage apertures, which is provided between apertures |
Country Status (1)
Country | Link |
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DE (1) | DE102010043641A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013202605A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Injection valve for injecting fuel into combustion chamber, has two-piece valve-seat carrier that is provided with insert which is received and is connected to base ring through connecting device |
DE102013202613A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve for controlling fluid such as gaseous fuel for vehicle, has connecting element that is provided with web, first retaining portion connecting web with outer portion and second holding portion surrounding web with inner portion |
DE102013202610A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with improved sealing element and improved valve seat carrier |
DE102013202623A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with improved cold start capability |
DE102013202631A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with adjustable sealing element |
DE102013202633A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve for controlling fluid e.g. natural gas used for engine, has ring component that is connected to cylinder component through fixed connection, and valve seat is provided at ring component and/or cylinder component |
DE102013202599A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Sealing element for gas valve for controlling fluid, has base body with first and second sealing areas, where first thickness of sealing element to first sealing area is different from second thickness on second sealing area |
WO2015197245A1 (en) * | 2014-06-26 | 2015-12-30 | Robert Bosch Gmbh | Gas valve |
EP3098489A1 (en) * | 2015-05-29 | 2016-11-30 | Mitsubishi Heavy Industries, Ltd. | Annular valve and power generating apparatus of renewable-energy type |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005056212A1 (en) | 2005-11-25 | 2007-06-06 | Robert Bosch Gmbh | Valve for controlling fluid e.g. gaseous medium, has valve seat comprising two regions, where one region runs continuously in seat plate region of seat plate, and another region runs continuously in flow region in flow opening |
-
2010
- 2010-11-09 DE DE102010043641A patent/DE102010043641A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005056212A1 (en) | 2005-11-25 | 2007-06-06 | Robert Bosch Gmbh | Valve for controlling fluid e.g. gaseous medium, has valve seat comprising two regions, where one region runs continuously in seat plate region of seat plate, and another region runs continuously in flow region in flow opening |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013202605A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Injection valve for injecting fuel into combustion chamber, has two-piece valve-seat carrier that is provided with insert which is received and is connected to base ring through connecting device |
DE102013202613A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve for controlling fluid such as gaseous fuel for vehicle, has connecting element that is provided with web, first retaining portion connecting web with outer portion and second holding portion surrounding web with inner portion |
DE102013202610A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with improved sealing element and improved valve seat carrier |
DE102013202623A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with improved cold start capability |
DE102013202631A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve with adjustable sealing element |
DE102013202633A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Valve for controlling fluid e.g. natural gas used for engine, has ring component that is connected to cylinder component through fixed connection, and valve seat is provided at ring component and/or cylinder component |
DE102013202599A1 (en) | 2013-02-19 | 2014-08-21 | Robert Bosch Gmbh | Sealing element for gas valve for controlling fluid, has base body with first and second sealing areas, where first thickness of sealing element to first sealing area is different from second thickness on second sealing area |
WO2014127874A1 (en) * | 2013-02-19 | 2014-08-28 | Robert Bosch Gmbh | Valve having an adjustable sealing element |
US9897221B2 (en) | 2013-02-19 | 2018-02-20 | Robert Bosch Gmbh | Valve having an improved sealing element and an improved valve seat support |
WO2015197245A1 (en) * | 2014-06-26 | 2015-12-30 | Robert Bosch Gmbh | Gas valve |
US9909536B2 (en) | 2014-06-26 | 2018-03-06 | Robert Bosch Gmbh | Gas valve |
EP3098489A1 (en) * | 2015-05-29 | 2016-11-30 | Mitsubishi Heavy Industries, Ltd. | Annular valve and power generating apparatus of renewable-energy type |
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