DE102007026831B3 - Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve - Google Patents
Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve Download PDFInfo
- Publication number
- DE102007026831B3 DE102007026831B3 DE200710026831 DE102007026831A DE102007026831B3 DE 102007026831 B3 DE102007026831 B3 DE 102007026831B3 DE 200710026831 DE200710026831 DE 200710026831 DE 102007026831 A DE102007026831 A DE 102007026831A DE 102007026831 B3 DE102007026831 B3 DE 102007026831B3
- Authority
- DE
- Germany
- Prior art keywords
- thermal expansion
- aluminum alloy
- plastic composite
- mean
- electrohydraulic valve
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000004033 plastic Substances 0.000 title claims abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 16
- 239000000835 fiber Substances 0.000 claims description 8
- 239000004695 Polyether sulfone Substances 0.000 claims description 7
- 229920006393 polyether sulfone Polymers 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229920002492 poly(sulfone) Polymers 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920000271 Kevlar® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Die Erfindung betrifft ein elektrohydraulisches Ventil gemäß dem einteiligen Patentanspruch 1.The The invention relates to an electro-hydraulic valve according to the one-piece Claim 1.
Aus
der
Ferner
ist aus der
In
der
Ferner
ist aus der
Aufgabe der Erfindung ist es, ein kostengünstiges elektrohydraulisches Ventil zu schaffen.task The invention is an inexpensive electro-hydraulic To create a valve.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen von Patentanspruch 1 gelöst.These Task is according to the invention with the Characteristics of claim 1 solved.
Gemäß einem Vorteil der Erfindung ermöglicht ein Kunststoffverbundwerkstoff eine kostengünstige Fertigung des Kolbens für das Ventil.According to one Advantage of the invention allows a plastic composite cost-effective production of the piston for the Valve.
Es findet ein Kunststoffverbundwerkstoff Anwendung, der hohe Leckageverluste vermeidet, indem dieser Kunststoffverbundwerkstoff im relevanten Temperaturbereich die ähnliche Wärmeausdehnung aufzeigt, wie die Aluminiumlegierung der mit dem Kolben eine Passung bildenden Buchse. Dabei wird ein Kunststoffverbundwerkstoff mit einem Wärmeausdehnungskoeffizienten gewählt, der an den Wärmeausdehnungskoeffizienten einer Aluminiumlegierung mit einem hohem Siliziumanteil angepasst ist. Eine solcher hoher Siliziumanteil ist notwendig, um bleihaltige Aluminiumlegierungen zu ersetzen. Blei wird hinsichtlich Recycling/Umwelt als kritisch angesehen. In vorteilhafter Weise trifft den Kolben aus Kunststoffverbundwerkstoff im Gegensatz zu einem Kolben aus einer Aluminiumlegierungen nicht das Problem des Ersatzes von Blei durch Silizium.It finds a plastic composite application, the high leakage losses avoids this plastic composite in the relevant temperature range shows the similar thermal expansion, as the aluminum alloy of the piston forming a fit Rifle. This is a plastic composite material with a thermal expansion coefficient selected the at the thermal expansion coefficient adapted to an aluminum alloy with a high silicon content is. Such a high silicon content is necessary to lead-containing To replace aluminum alloys. Lead becomes recycling / environment considered critical. Advantageously, the piston hits made of plastic composite material as opposed to a piston Aluminum alloys are not the problem of lead replacement through silicon.
Der Kunststoffverbundwerkstoff weist dabei in besonders vorteilhafter Weise eine Faserverstärkung auf. Faserverstärkungen verleihen dem Kunststoffverbundwerkstoff Festigkeit und Abriebsfestigkeit. Die Fasern können Kohlefasern und/oder Glasfasern sein. Ebenso sind andere Fasern – beispielsweise Aramidfasern oder Kevlarfasern – möglich.Of the Plastic composite material has in particular advantageous Do a fiber reinforcement on. fiber reinforcements give the plastic composite strength and abrasion resistance. The fibers can Carbon fibers and / or glass fibers. Likewise, other fibers - for example Aramid fibers or Kevlar fibers - possible.
Die Werkstoffanteile gemäß der Erfindung tragen dem Umstand Rechnung, dass besondere Festigkeit verleihende Fasern markterhältlich sind, die einen geringeren Wärmeausdehungskoeffizienten als übliche Aluminiumlegierungen aufweisen.The Wear material shares according to the invention account for the fact that special strength-conferring fibers markterhältlich are those that have a lower thermal expansion coefficient as usual Have aluminum alloys.
Weitere Vorteile der Erfindung gehen aus den weiteren Patentansprüchen, der Beschreibung und der Zeichnung hervor.Further Advantages of the invention will become apparent from the other claims, the Description and the drawing forth.
Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels erläutert.The The invention is explained below with reference to an embodiment.
Die
einzige Zeichnung zeigt ein elektrohydraulisches Ventil
Das
Ventil
- – einerseits
an dem einen Ende
6 des Kolbens4 und - – andererseits über einen
Stützring
7 an einer Buchse8 , welche bewegungsfest mit dem Aktorgehäuse3 verbunden ist,
- - on the one hand at one end
6 of the piston4 and - - On the other hand, a support ring
7 on a socket8th , which are resistant to movement with the actuator housing3 connected is,
Die
Buchse
Die
Buchse
Die
Buchse
Die
Buchse
Dabei wird der Wärmeausdehnungskoeffizient als mittlerer linearer Wärmeausdehnungskoeffizient in einem Temperaturbereich angegeben, da der Wärmeausdehnungskoeffizient von Aluminiumlegierung mit steigender Temperatur größer wird. Übliche Legierungselemente haben darüber hinaus ebenfalls einen Einfluss auf den Wärmeausdehnungskoeffizenten.there becomes the thermal expansion coefficient as the mean linear thermal expansion coefficient given in a temperature range, since the thermal expansion coefficient of Aluminum alloy becomes larger with increasing temperature. Have common alloying elements about that also an influence on the thermal expansion coefficient.
Polyethersulfon ist ein zur Gruppe der Polysulfon gehörender thermoplastischer Kunststoff. Er ist hydrolysefest und chemisch beständig. Das Polyethersulfon ist beispielsweise gegenüber Polysulfon chemikalienbeständiger und schlagzäher. Er ist thermisch hochbelastetbar. Polyethersulfon und Polysulfon sind sehr steif und weisen eine hohe Beständigkeit gegenüber dem Öl auf. Polyethersulfon und Polysulfon können in der Extrusion oder im Spritzguss zum Kolben gefertigt werden.polyether sulfone is a belonging to the group of polysulfone thermoplastic. It is resistant to hydrolysis and chemically resistant. The polyethersulfone is for example, opposite Polysulfone more chemical resistant and toughened. He is thermally highly loaded. Polyethersulfone and polysulfone are very stiff and have a high resistance to the oil. polyether sulfone and polysulfone can be made in the extrusion or injection molding to the piston.
Für den Kolben sind beliebige Kunststoffverbundwerkstoffe denkbar, die im relevanten Temperaturbereich einen mittleren Wärmeausdehnungskoeffizienten aufweisen, der an die Leckageanforderungen des jeweiligen Einsatzzweckes des Ventils angepasst ist.For the piston are any plastic composites conceivable in the relevant Temperature range a mean thermal expansion coefficient that conforms to the leakage requirements of the particular application of the valve is adjusted.
Zwischen der Schraubendruckfeder und dem Kolben kann eine Verstärkung – beispielsweise eine Stahlscheibe – vorgesehen sein.Between the helical compression spring and the piston can be a gain - for example, a Steel disc - provided be.
Die Anwendung ist nicht auf Ventile für Nockenwellenversteller beschränkt. Es ist der Einsatz bei beliebigen anderen elektrohydraulischen Ventilen – insbesondere im Kraftfahrzeugbereich – denkbar.The Application is not limited to valves for camshaft adjusters. It is the use in any other electro-hydraulic valves - in particular in the automotive sector - conceivable.
Weitere, insbesondere nicht beschriebene Merkmale der zur Erfindung gehörenden Vorrichtungsteile, sind den in den Zeichnungen dargestellten Geometrien der Vorrichtungsteile zu entnehmen.Further, in particular not described features of the device parts belonging to the invention, are the geometries of the device parts shown in the drawings refer to.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710026831 DE102007026831B3 (en) | 2007-06-06 | 2007-06-06 | Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710026831 DE102007026831B3 (en) | 2007-06-06 | 2007-06-06 | Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007026831B3 true DE102007026831B3 (en) | 2008-10-02 |
Family
ID=39719796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710026831 Expired - Fee Related DE102007026831B3 (en) | 2007-06-06 | 2007-06-06 | Electrohydraulic valve has plastic composite material of piston with mean thermal expansion coefficient which in specific temp. range deviates by 50% max. from mean linear thermal expansion coefficients of aluminum alloy of sleeve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007026831B3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2136041A2 (en) | 2008-06-19 | 2009-12-23 | Hydraulik-Ring Gmbh | Valve to shift a camshaft |
DE102009027414A1 (en) | 2009-07-01 | 2011-01-05 | Robert Bosch Gmbh | Pressure control valve for automatic transmission of motor vehicle, has control opening extended in circumferential direction of guidance surface, where control opening exhibits circular cross-section area with specific value |
WO2014006056A1 (en) | 2012-07-06 | 2014-01-09 | Hilite Germany Gmbh | Oscillating motor adjuster with a hydraulic valve |
WO2016000706A1 (en) * | 2014-07-04 | 2016-01-07 | Schaeffler Technologies AG & Co. KG | Control valve with a control piston made of plastic |
DE102015117143B4 (en) * | 2014-10-14 | 2018-01-11 | Hilite Germany Gmbh | Phaser |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69722686T2 (en) * | 1996-01-16 | 2004-04-29 | Saturn Electronics & Engineering, Inc., Auburn Hills | Electromagnetic proportional valve with variable actuating force |
DE102004056764A1 (en) * | 2003-11-25 | 2005-07-21 | Aisan Kogyo Kabushiki Kaisha, Obu | Throttle body and method for producing such throttle body |
DE102005003446A1 (en) * | 2005-01-27 | 2006-08-10 | Schaeffler Kg | Electromagnetic hydraulic valve |
DE102005026553B3 (en) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
DE102005050887B3 (en) * | 2005-10-21 | 2007-03-08 | Hydraulik-Ring Gmbh | Electromagnet for operating hydraulic valve, has several recesses arranged over circumference of recess in receptacle for receiving armature tappet |
-
2007
- 2007-06-06 DE DE200710026831 patent/DE102007026831B3/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69722686T2 (en) * | 1996-01-16 | 2004-04-29 | Saturn Electronics & Engineering, Inc., Auburn Hills | Electromagnetic proportional valve with variable actuating force |
DE102004056764A1 (en) * | 2003-11-25 | 2005-07-21 | Aisan Kogyo Kabushiki Kaisha, Obu | Throttle body and method for producing such throttle body |
DE102005003446A1 (en) * | 2005-01-27 | 2006-08-10 | Schaeffler Kg | Electromagnetic hydraulic valve |
DE102005026553B3 (en) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
DE102005050887B3 (en) * | 2005-10-21 | 2007-03-08 | Hydraulik-Ring Gmbh | Electromagnet for operating hydraulic valve, has several recesses arranged over circumference of recess in receptacle for receiving armature tappet |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2136041A2 (en) | 2008-06-19 | 2009-12-23 | Hydraulik-Ring Gmbh | Valve to shift a camshaft |
DE102009027414A1 (en) | 2009-07-01 | 2011-01-05 | Robert Bosch Gmbh | Pressure control valve for automatic transmission of motor vehicle, has control opening extended in circumferential direction of guidance surface, where control opening exhibits circular cross-section area with specific value |
DE102009027414B4 (en) | 2009-07-01 | 2024-06-20 | Robert Bosch Gmbh | Pressure control valve, in particular for an automatic transmission in a motor vehicle |
WO2014006056A1 (en) | 2012-07-06 | 2014-01-09 | Hilite Germany Gmbh | Oscillating motor adjuster with a hydraulic valve |
DE102012106096B3 (en) * | 2012-07-06 | 2014-05-15 | Hilite Germany Gmbh | Swivel motor adjuster with a hydraulic valve |
WO2016000706A1 (en) * | 2014-07-04 | 2016-01-07 | Schaeffler Technologies AG & Co. KG | Control valve with a control piston made of plastic |
DE102015117143B4 (en) * | 2014-10-14 | 2018-01-11 | Hilite Germany Gmbh | Phaser |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R081 | Change of applicant/patentee |
Owner name: HILITE GERMANY GMBH, DE Free format text: FORMER OWNER: HYDRAULIK-RING GMBH, 97828 MARKTHEIDENFELD, DE Effective date: 20130521 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |