DE102008047187B4 - Machine with a partial circuits having reliable coolant circuit - Google Patents
Machine with a partial circuits having reliable coolant circuit Download PDFInfo
- Publication number
- DE102008047187B4 DE102008047187B4 DE102008047187.9A DE102008047187A DE102008047187B4 DE 102008047187 B4 DE102008047187 B4 DE 102008047187B4 DE 102008047187 A DE102008047187 A DE 102008047187A DE 102008047187 B4 DE102008047187 B4 DE 102008047187B4
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- DE
- Germany
- Prior art keywords
- coolant
- rotary
- rotary valve
- machine
- flow
- 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.)
- Expired - Fee Related
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0414—Plug channel at 90 degrees to the inlet
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Maschine mit einem Teilkreise aufweisenden Kühlmittelkreislauf, dadurch gekennzeichnet, dass die Teilkreise mittels eines angetriebenen Drehschiebers (3) geöffnet oder geschlossen werden können, wobei Mittel vorgesehen sind, die bei einem Ausfall des Antriebs den Drehschieber (3) durch die Kraft des Kühlmittels (8) des Kühlmittelkreislaufs in eine für die Maschine betriebssichere Position verdrehen, und wobei ein Kühlmittelvolumenstrom (17) zum Drehen eines Drehelements (4) des Drehschiebers (3) auf eine strukturierte Oberfläche (9) des Drehelements (4) auftrifft, oder wobei die Mittel Leitschaufeln (21) des Drehschiebers (3) sind, die von mindestens einem Teilstrom des Kühlmittels (8) beaufschlagt werden.Machine with a coolant circuit having partial circles, characterized in that the partial circles can be opened or closed by means of a driven rotary slide valve (3), means being provided which, in the event of a drive failure, the rotary slide valve (3) by the force of the coolant (8) rotate the coolant circuit into a position that is safe for the machine to operate, and wherein a coolant volume flow (17) for rotating a rotary element (4) of the rotary valve (3) impinges on a structured surface (9) of the rotary element (4), or wherein the means impinges on guide vanes ( 21) of the rotary valve (3), which are acted upon by at least a partial flow of the coolant (8).
Description
Die Erfindung betrifft eine Maschine, insbesondere Brennkraftmaschine, mit einem Teilkreise aufweisenden Kühlmittelkreislauf. Die Erfindung betrifft ferner ein Verfahren zum Betreiben einer solchen Maschine.The invention relates to a machine, in particular internal combustion engine, with a partial circuits having coolant circuit. The invention further relates to a method for operating such a machine.
Mittels eines Mediums gekühlte Maschinen, insbesondere Brennkraftmaschinen, weisen Drehschieber auf, die verstellbare Querschnitte, Zu- und Abgänge aufweisen, um Teilkreise eines solchen Kühlmittelkreislaufs wählbar zu durchströmen. Hierzu werden angetriebene Drehschieber verwendet, die beispielsweise von einem Stellmotor verdreht werden. Fällt der Stellmotor in ungünstigen Fällen aus, ist es möglich, dass der Kühlmittelkreislauf in einer für den Weiterbetrieb der Maschine ungünstigen Stellung stehen bleibt, beispielsweise dergestalt, dass der Teilkreis, der zu einem Hauptwärmetauscher führt, nicht durchströmt wird und so eine Überhitzung der Maschine erfolgen kann. Um dies zu vermeiden, können kräftige Torsionsfedern an Stirnseiten von Drehelementen dieser Drehschieber angebracht werden, wobei der Stellmotor das Drehelement des Drehschiebers gegen die Wirkung der Torsionsfeder verdreht, die Torsionsfeder also eine rückstellende Wirkung auf das Drehelement zur Einnahme einer solchen Stellung aufbringt, in der ein sicherer Weiterbetrieb der Maschine bei Ausfall des Stellmotors möglich ist. Hieran ist nachteilig, dass zusätzliche Bauteile wie nämlich Torsionsfedern und deren Befestigungsmaterial benötigt werden. Weiter ist nachteilig, dass sowohl Montage- als auch Bauraumaufwand für diese Lösungen relativ groß sind, da die Torsionsfedern regelmäßig außerhalb des Drehschiebers oder in einem separaten Bauraum des Drehschiebers angeordnet werden müssen. Ferner muss der Stellmotor stets gegen die Kraft der relativ starken Torsionsfeder arbeiten und muss daher unnötig kräftig ausgelegt sein.Refrigerated machines by means of a medium, in particular internal combustion engines, have rotary valves which have adjustable cross sections, inlets and outlets, in order to be able to flow selectively through partial circuits of such a coolant circuit. For this purpose, driven rotary valves are used, which are rotated for example by a servomotor. If the servomotor precipitates in unfavorable cases, it is possible that the coolant circuit remains in an unfavorable position for continued operation of the machine, for example such that the partial circuit leading to a main heat exchanger is not flowed through and thus the machine overheats can. To avoid this, strong torsion springs can be attached to end faces of rotary elements of this rotary valve, wherein the servomotor rotates the rotary member of the rotary valve against the action of the torsion spring, the torsion spring thus applies a restoring effect on the rotary member for taking such a position in the one safe continued operation of the machine in case of failure of the servomotor is possible. This has the disadvantage that additional components such as torsion springs and their mounting material are needed. Another disadvantage is that both installation and space requirements for these solutions are relatively large, since the torsion springs must be arranged regularly outside of the rotary valve or in a separate space of the rotary valve. Furthermore, the servomotor must always work against the force of the relatively strong torsion spring and therefore must be designed unnecessarily strong.
Aus dem Stand der Technik ist beispielsweise die Druckschrift
Aufgabe der Erfindung ist es, eine Maschine mit einem Kühlmittelkreislauf bereitzustellen, die solche angetriebenen Drehschieber aufweist, in denen die genannten Nachteile vermieden werden und die einen sicheren Betrieb der Maschine auch bei Ausfall eines Drehschieber-Antriebs sicherstellen.The object of the invention is to provide a machine with a coolant circuit having such rotary valves driven, in which the disadvantages mentioned are avoided and ensure safe operation of the machine even in case of failure of a rotary valve drive.
Hierzu wird eine Maschine, insbesondere Brennkraftmaschine vorgeschlagen, mit einem Teilkreise aufweisenden Kühlmittelkreislauf, die mittels eines angetriebenen Drehschiebers geöffnet oder geschlossen werden können. Hierbei sind Mittel vorgesehen, die bei einem Ausfall des Antriebs den Drehschieber durch die Kraft des Kühlmittels des Kühlmittelskreislaufs in eine für die Maschine betriebssichere Position verdrehen. Durch die Mittel wird der Drehschieber in die betriebssichere Position verdreht. Die Mittel werden hierbei von der Kraft des strömenden Kühlmittels des Kühlmittelkreislaufs angetrieben. Dabei ist vorgesehen, dass ein Kühlmittelvolumenstrom zum Drehen eines Drehelements des Drehschiebers auf eine strukturierte Oberfläche des Drehelements auftrifft, oder dass die Mittel Leitschaufeln des Drehschiebers sind, die von mindestens einem Teilstrom des Kühlmittels beaufschlagt werden.For this purpose, a machine, in particular internal combustion engine is proposed, with a partial circuits having coolant circuit, which can be opened or closed by means of a driven rotary valve. In this case, means are provided which rotate the rotary valve by the force of the coolant of the coolant circuit in a reliable position for the machine in case of failure of the drive. By the means of the rotary valve is rotated in the reliable position. The means are in this case driven by the force of the flowing coolant of the coolant circuit. It is provided that a coolant volume flow for rotating a rotary element of the rotary valve impinges on a structured surface of the rotary element, or that the means are guide vanes of the rotary valve, which are acted upon by at least a partial flow of the coolant.
In einer Ausführungsform sind die Mittel Leitschaufeln des Drehschiebers, die von mindestens einem Teilstrom des Kühlmittels beaufschlagt werden. Leitschaufeln sind hierbei solche strömungsdynamisch geformten Elemente in Schaufel- oder Flügelform, die eine Anströmung des Kühlmittels beziehungsweise des Teilstroms des Kühlmittels in eine Bewegung umsetzen, insbesondere in eine Drehbewegung, oder zu einer Lenkung des Kühlmittelstroms führen.In one embodiment, the means are guide vanes of the rotary valve, which are acted upon by at least a partial flow of the coolant. Guide vanes are in this case such flow-dynamically shaped elements in blade or wing shape, which convert a flow of the coolant or the partial flow of the coolant into a movement, in particular in a rotational movement, or lead to a steering of the coolant flow.
In einer weiteren Ausführungsform trifft der Kühlmittelstrom auf eine strukturierte Oberfläche eines Drehelements des Drehschiebers auf. Die strukturierte Oberfläche des Drehelements bietet dem Kühlmittelstrom Widerstand, so dass der Kühlmittelstrom das Drehelement mitzunehmen, nämlich zu drehen, bestrebt ist.In a further embodiment, the coolant flow impinges on a structured surface of a rotary element of the rotary valve. The structured surface of the rotary element provides resistance to the coolant flow, so that the coolant flow tends to take the rotary element with it, namely to rotate.
In einer anderen Ausführungsform ist vorgesehen, dass die Mittel eine tangentiale oder sekantenartige Anströmung des Drehschiebers mit einem Kühlmittelstrom bewirken. Damit die kinetische Energie des strömenden Kühlmittels in eine Drehbewegung des Drehschiebers umgesetzt werden kann, muss eine Anströmung des Drehschiebers stattfinden, die eine bezogen auf seine Drehachse und seinen Umfang, außermittige Kraftbeaufschlagung bewirkt. Dies ist dann der Fall, wenn der Drehschieber tangential oder sekantenartig angeströmt wird, also bezogen auf seine Drehachse eine oberhalb beziehungsweise unterhalb der Drehachse liegende Mantelfläche mit einer höheren Kraft beaufschlagt wird als die jeweils andere Hälfte.In another embodiment, it is provided that the means cause a tangential or secant-like flow of the rotary valve with a flow of coolant. So that the kinetic energy of the flowing coolant can be converted into a rotary movement of the rotary valve, an inflow of the rotary valve must take place, which causes a relative to its axis of rotation and its circumference, off-center application of force. This is the case when the rotary valve is flowed tangentially or secantily, so based on its axis of rotation, a lying above or below the axis of rotation lateral surface is subjected to a higher force than the other half.
In einer weiteren Ausführungsform ist die strukturierte Oberfläche von Erhebungen und Vertiefungen der Oberfläche gebildet. Das Drehelement weist an seiner Oberfläche hierzu Erhebungen und/oder Vertiefungen auf, die dem anströmenden Kühlmittel einen Widerstand entgegenbringen. Hierdurch erfolgt eine Kraftbeaufschlagung des Drehelements über die strukturierte Oberfläche, die zu einer Drehbewegung führt.In a further embodiment, the structured surface is formed by elevations and depressions of the surface. The rotary member has on its surface to elevations and / or depressions, which provide resistance to the inflowing coolant. hereby a force is applied to the rotary member via the structured surface, which leads to a rotational movement.
Bevorzugt ist der Kühlmittelvolumenstrom ein Kühlmittelteilstrom des Kühlmittels. Hierdurch kann sichergestellt werden, dass eine betriebssichere Verstellung des rehschiebers über den Kühlmittelteilstrom auch dann erfolgt, wenn der Kühlmittelvolumenstrom im Sinne eines Hauptstromes durch den Drehschieber abgesperrt ist; sollte der Antrieb des Drehschiebers ausfallen, reicht der Kühlmittelteilstrom aus, um das Drehelement des Drehschiebers in eine betriebssichere Position zu verdrehen, insbesondere in eine solche, in der der Hauptstrom des Kühlmittelvolumenstroms durch für den sicheren Betrieb der Maschine erforderliche Teilkreise des Kühlmittelkreislaufs läuft.The coolant volume flow is preferably a coolant partial flow of the coolant. In this way, it can be ensured that a reliable adjustment of the reed valve via the coolant partial flow also takes place when the coolant volume flow in the sense of a main flow is shut off by the rotary valve; should the drive of the rotary valve fail, the coolant partial flow is sufficient to rotate the rotary element of the rotary valve in a reliable position, in particular in such a, in which the main flow of the coolant flow rate runs through required for the safe operation of the machine pitch circles of the coolant circuit.
Bevorzugt weist das Drehelement einen Passierkanal für das Kühlmittel zur Zuführung von Kühlmittel zur Maschine, insbesondere Brennkraftmaschine, in Fail-Safe-Stellung auf. In der Position, die also zur Sicherstellung des betriebssicheren Zustands eingenommen werden soll, weist das Drehelement einen Passierkanal für das Kühlmittel auf. Das Kühlmittel wird dadurch der Brennkraftmaschine und/oder einem Hauptkühle/Wärmetauscher zugeführt, so dass die thermische Stabilität der Maschine nicht beeinträchtigt wird und ein sicherer Betrieb der Maschine auch bei ausgefallenem Antrieb des Drehschiebers möglich ist.Preferably, the rotary member has a passage for the passage of coolant for supplying coolant to the engine, in particular internal combustion engine, in fail-safe position. In the position which is thus to be taken to ensure the reliable condition, the rotary member has a passage for the passage of the coolant. The coolant is thereby supplied to the internal combustion engine and / or a main cooling / heat exchanger, so that the thermal stability of the machine is not impaired and safe operation of the machine is possible even with failed drive of the rotary valve.
Weiter wird ein Verfahren vorgeschlagen zum Betreiben einer Maschine, insbesondere Brennkraftmaschine, wie vorstehend beschrieben, mit einem Teilkreise aufweisenden Kühlmittelkreislauf, die mittels eines angetriebenen Drehschiebers geöffnet oder geschlossen werden können. Dabei ist vorgesehen, dass bei einem Ausfall des Antriebs der Drehschieber durch die Kraft des Kühlmittels des Kühlmittelkreislaufs in eine für die Maschine betriebssichere Position verdreht wird.Further, a method is proposed for operating a machine, in particular internal combustion engine, as described above, with a partial circuits having coolant circuit, which can be opened or closed by means of a driven rotary valve. It is provided that in case of failure of the drive, the rotary valve is rotated by the force of the coolant of the coolant circuit in a reliable position for the machine.
Weitere vorteilhafte Ausführungsformen ergeben sich aus den Unteransprüchen und aus Kombinationen derselben.Further advantageous embodiments will become apparent from the dependent claims and combinations thereof.
Die Erfindung wird nachfolgend anhand zweier Ausführungsbeispiele näher beschrieben, ohne aber hierauf beschränkt zu sein.The invention will be described in more detail below with reference to two embodiments, but without being limited thereto.
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BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- KühlmittelkanalCoolant channel
- 22
- KühlmittelpumpeCoolant pump
- 33
- Drehschieberrotary vane
- 44
- Drehelementrotating member
- 55
- DrehschiebergehäuseRotary slide housing
- 66
- Zylinderstabcylinder rod
- 77
- PassierkanalPassierkanal
- 88th
- Kühlmittelcoolant
- 99
- strukturierte Oberflächestructured surface
- 1010
- DrehelementmantelflächeSwivel casing surface
- 1111
- Erhebungsurvey
- 1212
- Vertiefungdeepening
- 1313
- Drehachseaxis of rotation
- 1414
- Anströmungsebeneinflow plane
- 1515
- Mittelebenemidplane
- 1616
- Verrohrungpiping
- 1717
- KühlmittelvolumenstromCoolant flow
- 1818
- VerrohrungsabzweigungVerrohrungsabzweigung
- 1919
- KühlmittelteilstromCoolant partial flow
- 2020
- Stirnseitefront
- 2121
- Leitschaufelnvanes
- 2222
- KühlmittelrücklaufleitungCoolant return line
- 2323
- WeiterförderungNext promotion
- RR
- DrehrichtungspfeilDirection arrow
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008047187.9A DE102008047187B4 (en) | 2008-09-15 | 2008-09-15 | Machine with a partial circuits having reliable coolant circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008047187.9A DE102008047187B4 (en) | 2008-09-15 | 2008-09-15 | Machine with a partial circuits having reliable coolant circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008047187A1 DE102008047187A1 (en) | 2010-03-25 |
DE102008047187B4 true DE102008047187B4 (en) | 2014-06-05 |
Family
ID=41693684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008047187.9A Expired - Fee Related DE102008047187B4 (en) | 2008-09-15 | 2008-09-15 | Machine with a partial circuits having reliable coolant circuit |
Country Status (1)
Country | Link |
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DE (1) | DE102008047187B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014000109A1 (en) | 2014-01-11 | 2015-07-16 | Thomas Ramminger | Rotary valve hydraulically operated with electronic control and locking |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4324555A1 (en) * | 1993-07-22 | 1995-01-26 | Ingelheim Peter Graf Von | Simple control device for adjusting slides, gates, flaps, throttles and valves for flows and ducts or pipelines for flowing media of large cross-sectional area |
DE19918128A1 (en) * | 1999-04-21 | 2000-10-26 | Dieter Moellmann | Shut-off valve for pressurized containers or pipe lines has valve plate which closes automatically in both directions of flow |
DE10053850A1 (en) * | 2000-10-30 | 2002-05-08 | Bosch Gmbh Robert | eccentric valve |
DE10155386A1 (en) * | 2001-11-10 | 2003-05-22 | Bosch Gmbh Robert | Valve with an emergency function |
DE10249448A1 (en) * | 2002-10-24 | 2004-05-13 | Pierburg Gmbh | Bypass valve to control coolant temperature in internal combustion engine has interconnected flap elements dependently regulating two inlet side coolant flows, whereby first flap element opens by same angle as second closes |
DE10249449B4 (en) * | 2002-10-24 | 2005-12-08 | Pierburg Gmbh | Bypass valve device |
DE102007022189A1 (en) * | 2007-05-11 | 2008-11-27 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Pulley driven, controllable coolant pump for internal combustion engine of motor vehicle, has transmitter with end including actuating and working pistons at hydraulic pipe, where working piston operates in operating medium provided in pipe |
-
2008
- 2008-09-15 DE DE102008047187.9A patent/DE102008047187B4/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4324555A1 (en) * | 1993-07-22 | 1995-01-26 | Ingelheim Peter Graf Von | Simple control device for adjusting slides, gates, flaps, throttles and valves for flows and ducts or pipelines for flowing media of large cross-sectional area |
DE19918128A1 (en) * | 1999-04-21 | 2000-10-26 | Dieter Moellmann | Shut-off valve for pressurized containers or pipe lines has valve plate which closes automatically in both directions of flow |
DE10053850A1 (en) * | 2000-10-30 | 2002-05-08 | Bosch Gmbh Robert | eccentric valve |
DE10155386A1 (en) * | 2001-11-10 | 2003-05-22 | Bosch Gmbh Robert | Valve with an emergency function |
DE10249448A1 (en) * | 2002-10-24 | 2004-05-13 | Pierburg Gmbh | Bypass valve to control coolant temperature in internal combustion engine has interconnected flap elements dependently regulating two inlet side coolant flows, whereby first flap element opens by same angle as second closes |
DE10249449B4 (en) * | 2002-10-24 | 2005-12-08 | Pierburg Gmbh | Bypass valve device |
DE102007022189A1 (en) * | 2007-05-11 | 2008-11-27 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Pulley driven, controllable coolant pump for internal combustion engine of motor vehicle, has transmitter with end including actuating and working pistons at hydraulic pipe, where working piston operates in operating medium provided in pipe |
Also Published As
Publication number | Publication date |
---|---|
DE102008047187A1 (en) | 2010-03-25 |
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