EP2708746A1 - Hollow valve plate - Google Patents

Hollow valve plate Download PDF

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Publication number
EP2708746A1
EP2708746A1 EP20130171393 EP13171393A EP2708746A1 EP 2708746 A1 EP2708746 A1 EP 2708746A1 EP 20130171393 EP20130171393 EP 20130171393 EP 13171393 A EP13171393 A EP 13171393A EP 2708746 A1 EP2708746 A1 EP 2708746A1
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EP
European Patent Office
Prior art keywords
plate
channels
valve plate
cover plate
suction
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.)
Withdrawn
Application number
EP20130171393
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German (de)
French (fr)
Inventor
Roland Cesak
Olaf Bielmeier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoerbiger Kompressortechnik Holding GmbH
Original Assignee
Hoerbiger Kompressortechnik Holding GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoerbiger Kompressortechnik Holding GmbH filed Critical Hoerbiger Kompressortechnik Holding GmbH
Publication of EP2708746A1 publication Critical patent/EP2708746A1/en
Withdrawn legal-status Critical Current

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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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7839—Dividing and recombining in a single flow path
    • Y10T137/784—Integral resilient member forms plural valves
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7891—Flap or reed

Definitions

  • the invention relates to a hollow valve plate for liquid-cooled valves of a reciprocating compressor, with a half-shell with cooling channels open on one side, which is covered by a sealed at least along the cooling channels thin cover plate, which has worked out of this, one-piece integrally connected elements of the valves.
  • the prior art for producing such hollow valve plates is usually soldering.
  • the individual parts to be soldered consist either of a number of thin stamped steel plates, which are connected in packages to form a unit, wherein from meandering recesses and regional recesses of the middle plates together with the closed up to inlet and Ableitö réelleen outer plates cooling channels or - create spaces.
  • suction lamellae and pressure lamellae are fastened separately in the end via receptacles or the like on the valve plate.
  • valve plates thus consist of relatively many items and in the manufacture and assembly are also relatively complicated, they also have the disadvantage that the cylinder-side resulting dead space, so the construction is not to be compressed dead volume, is relatively large, which negatively affects the possible delivery rate of the compressor.
  • a hollow valve plate of the type mentioned become known, in which a per se, for example, also from DE1628187A1 or EP846247A1 known, the entire valve plate overlapping and clamped together with this between the cylinder and cylinder head plate also at the same time to the cylinder side Termination of the half-shell in the cylinder side open cooling channels is used.
  • these channels or final separate second half-shell or cylinder-side cover plate was thus not only the production and installation of such hollow valve plates significantly simplified, but also significantly reduced the cylinder-side dead space.
  • the sealing of the entire system was easier because a sealing level is eliminated. Additionally advantageous was also the associated weight and cost savings.
  • Object of the present invention is to improve a hollow valve plate of the type mentioned so that the advantages already achieved can be obtained unchanged regardless of the specific configuration of the suction side of the valve plate and thus for a larger number of different designs of reciprocating compressors.
  • the half-shell to the side of the pressure valves has open cooling and / or media channels, which are covered and sealed by the worked out, one-sided connected Hubbegrenzer the inserted closing plates of the pressure valves having cover. It is thus used to cover the pressure side towards open channels again at the same time to take over a partial function of the pressure valves.
  • the cover plate is connected in a preferred embodiment of the invention, at least along the channels, and preferably also around the outflow openings of the valves, with the half shell, preferably welded or glued, which ensures a reliable connection of the cover plate with the half shell while sealing only the necessary areas , If further passage openings provided in the cover plate and / or the half-shell are also to be sealed off, this can also be done very simply by widening the welding or bonding to these areas.
  • the valve plate has on its suction side a further cover plate, which in the region of the suction openings each one out of the cover plate, one side integrally connected suction lamella and optionally sealed on this side existing cooling and / or media channels, preferably welded or glued, covered.
  • Fig. 1 shows an inventive valve plate with its essential details in exploded view
  • Fig. 2 the same valve plate in the assembled state from the pressure side (top in Fig. 1 )
  • Fig. 3 the valve plate from the suction side (in Fig. 1 from below).
  • valve plate 1 itself - the cylinder block
  • one of the better clarity omitted two-cylinder piston compressor concludes in the presentation Fig. 1 and 2 at the bottom of the valve plate - above would be presented in these figures, the cylinder head, the suction and pressure channels including the corresponding terminals, cooling channels and the like.
  • the illustrated valve plate 1 is the pressure side of only four parts formed - the half-shell 3, the cover plate 2 with the stroke limiter formed thereon 9 and the inserted two closing plates 10 of the pressure valves. There are thus fewer components associated with less manufacturing and assembly costs and less weight and lower costs. A further improvement could be achieved as mentioned on the suction side by the use of another cover plate with integrated suction lamellae.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)

Abstract

The valve plate (1) has a half shell (3) comprising single-sided opened cooling channels (4, 5) that are covered by a thin covering plate (2). The covering plate is sealed along the channels. The plate has a lift limiter (9) for closing plates (10) of a pressure valve. The plate is welded or glued with the half shell along the channels, and another covering plate is arranged on a suction side of the valve plate. The latter plate has a single-piece suction lamella in an area of suction openings. A fitting sleeve (13) positions the valve plate between a cylinder and a cylinder head.

Description

Die Erfindung betrifft eine hohle Ventilplatte für flüssigkeitsgekühlte Ventile eines Kolbenkompressors, mit einer Halbschale mit einseitig offenen Kühlkanälen, welche von einer zumindest entlang der Kühlkanäle abgedichteten dünnen Abdeckplatte überdeckt ist, die aus dieser herausgearbeitete, einseitig einstückig verbundene Elemente der Ventile aufweist.The invention relates to a hollow valve plate for liquid-cooled valves of a reciprocating compressor, with a half-shell with cooling channels open on one side, which is covered by a sealed at least along the cooling channels thin cover plate, which has worked out of this, one-piece integrally connected elements of the valves.

Speziell bei Verwendung als Bremsluftverdichter in Kraftfahrzeugen oder ähnlichen, oft lange Zeit mit hoher Leistung laufenden Anwendungen ist es notwendig, die zumindest ein Saugventil und ein Druckventil tragende Ventilplatte aktiv zu kühlen, um Überhitzungen in diesem Bereich zu vermeiden und auch um die über die Druckventile ausgeschobene verdichtete Luft zumindest zu einem gewissen Grad vorzukühlen, bevor sie dann zumeist im Zylinderkopfbereich vor dem Austritt weiter gekühlt wird. Es werden dafür nach dem Stande der Technik bereichsweise hohle bzw. mit Kühlkanälen versehene Ventilplatten eingesetzt, deren Kühlräume bzw. -kanäle an eine Flüssigkeitskühlung des Kolbenkompressors bzw. auch zusammen mit diesem an die Flüssigkeitskühlung einer zum Fahrzeugantrieb eingesetzten Brennkraftmaschine angeschlossen sind.Especially when used as a brake air compressor in motor vehicles or similar, often long time high-performance applications, it is necessary to actively cool the at least one suction valve and a pressure valve-carrying valve plate to avoid overheating in this area and also pushed over the pressure valves Pre-cool compressed air, at least to a certain extent, before it is then usually cooled in the cylinder head area before exiting. For this purpose, according to the state of the art, partially hollow or with cooling channels provided valve plates are used, the cooling chambers or channels are connected to a liquid cooling of the reciprocating compressor or together with this to the liquid cooling of an internal combustion engine used for vehicle propulsion.

Stand der Technik zum Herstellen derartiger hohler Ventilplatten ist üblicherweise das Löten. Dabei bestehen die zu verlötenden Einzelteile entweder aus einer Anzahl von dünnen gestanzten Stahlplatten, welche in Paketen zu einer Einheit verbunden werden, wobei aus mäanderförmigen Aussparungen und bereichsweisen Ausnehmungen der mittleren Platten zusammen mit den bis auf Zu- und Ableitöffnungen geschlossenen äußeren Platten Kühlkanäle bzw. -räume entstehen. Andererseits gibt es aber auch Ausführungen mit zwei einseitig offene Kanäle bzw. Bereiche aufweisenden Halbschalen (zumeist aus Grauguss), die beim Zusammenbau dann im Inneren geschlossene dreidimensionale Kanäle bzw. Räume bilden. Bei beiden Ausführungsvarianten werden zumeist Sauglamellen und Drucklamellen separat abschließend über Steckhülsen oder ähnliches auf der Ventilplatte befestigt.The prior art for producing such hollow valve plates is usually soldering. The individual parts to be soldered consist either of a number of thin stamped steel plates, which are connected in packages to form a unit, wherein from meandering recesses and regional recesses of the middle plates together with the closed up to inlet and Ableitöffnungen outer plates cooling channels or - create spaces. On the other hand, there are also designs with two channels open on one side or having half shells (mostly of gray cast iron), which then form closed three-dimensional channels or spaces in the interior during assembly. In both variants, usually suction lamellae and pressure lamellae are fastened separately in the end via receptacles or the like on the valve plate.

Abgesehen davon, dass die bekannten Ventilplatten damit aus relativ vielen Einzelteilen bestehen und in der Herstellung und Montage auch relativ kompliziert sind, haben sie auch den Nachteil, dass der zylinderseitig entstehende Schadraum, also das konstruktionsbedingt nicht weiter zu komprimierende Totvolumen, relativ groß ist, was den möglichen Liefergrad des Kompressors negativ beeinflusst.Apart from the fact that the known valve plates thus consist of relatively many items and in the manufacture and assembly are also relatively complicated, they also have the disadvantage that the cylinder-side resulting dead space, so the construction is not to be compressed dead volume, is relatively large, which negatively affects the possible delivery rate of the compressor.

Weiters ist aus der WO2011/124502A1 eine hohle Ventilplatte der eingangs genannten Art bekannt geworden, bei der eine an sich beispielsweise auch aus DE1628187A1 oder EP846247A1 bekannte, die gesamte Ventilplatte überdeckende und zusammen mit dieser zwischen Zylinder und Zylinderkopf eingespannte Lamellenplatte auch gleichzeitig zum zylinderseitigen Abschluss der in der Halbschale zylinderseitig offenen Kühlkanäle dient. Durch den Wegfall der bisher bei den gekühlten Ventilplatten diese Kanäle bildenden bzw. abschließenden separaten zweiten Halbschale bzw. zylinderseitigen Abdeckplatte wurde damit nicht nur die Herstellung und Montage derartiger hohler Ventilplatten wesentlich vereinfacht, sondern darüber hinaus auch der zylinderseitige Schadraum wesentlich verringert. Auch wurde die Abdichtung des Gesamtsystems einfacher, da eine Dichtebene entfällt. Zusätzlich vorteilhaft war dabei auch die damit einhergehende Gewichts- und Kostenersparnis.Furthermore, is from the WO2011 / 124502A1 a hollow valve plate of the type mentioned become known, in which a per se, for example, also from DE1628187A1 or EP846247A1 known, the entire valve plate overlapping and clamped together with this between the cylinder and cylinder head plate also at the same time to the cylinder side Termination of the half-shell in the cylinder side open cooling channels is used. By eliminating the previously formed in the cooled valve plates these channels or final separate second half-shell or cylinder-side cover plate was thus not only the production and installation of such hollow valve plates significantly simplified, but also significantly reduced the cylinder-side dead space. Also, the sealing of the entire system was easier because a sealing level is eliminated. Additionally advantageous was also the associated weight and cost savings.

Aufgabe der vorliegenden Erfindung ist es, eine hohle Ventilplatte der eingangs genannten Art so zu verbessern, dass die bereits erzielten Vorteile auch unabhängig von der konkreten Ausgestaltung der Saugseite der Ventilplatte und damit für eine größere Anzahl von unterschiedlichsten Ausgestaltungen von Kolbenkompressoren unverändert erhalten werden können.Object of the present invention is to improve a hollow valve plate of the type mentioned so that the advantages already achieved can be obtained unchanged regardless of the specific configuration of the suction side of the valve plate and thus for a larger number of different designs of reciprocating compressors.

Diese Aufgabe wird gemäß der vorliegenden Erfindung dadurch gelöst, dass die Halbschale zur Seite der Druckventile hin offene Kühl- und/oder Medienkanäle aufweist, die von der die herausgearbeiteten, einseitig verbundenen Hubbegrenzer der eingelegten Schließplatten der Druckventile aufweisenden Abdeckplatte überdeckt und abgedichtet sind. Es wird also damit die Abdeckplatte zur Abdeckung der zur Druckseite hin offenen Kanäle wiederum gleichzeitig zur Übernahme einer Teilfunktion der Druckventile herangezogen. Hier nun nicht zur Übernahme der Schließfunktion dieser Ventile selbst, sondern in vorteilhafterweise zur Übernahme der Funktion der Hubbegrenzer, womit nach der Montage der hohlen Ventilplatte, wobei die Schließplatten der Druckventile eingelegt und von der darüber angeordneten Abdeckplatte mit den Hubbegrenzern überdeckt werden, eine geschlossene Montageeinheit entsteht, die keine zusätzlichen Halteelemente für die Druckventile erfordert, was die Lagerhaltung und Montage sehr vereinfacht.This object is achieved according to the present invention in that the half-shell to the side of the pressure valves has open cooling and / or media channels, which are covered and sealed by the worked out, one-sided connected Hubbegrenzer the inserted closing plates of the pressure valves having cover. It is thus used to cover the pressure side towards open channels again at the same time to take over a partial function of the pressure valves. Here now not to take over the closing function of these valves themselves, but in an advantageous manner to take over the function of Hubbegrenzer, which after installation of the hollow valve plate, wherein the closing plates of the pressure valves are inserted and covered by the overlying cover plate with the Hubbegrenzern, a closed mounting unit arises, which requires no additional retaining elements for the pressure valves, which greatly simplifies the storage and installation.

Die Abdeckplatte ist in bevorzugter Ausgestaltung der Erfindung zumindest entlang der Kanäle, sowie vorzugsweise auch rund um die Abströmöffnungen der Ventile, mit der Halbschale verbunden, vorzugsweise verschweißt oder verklebt, was eine zuverlässige Verbindung der Abdeckplatte mit der Halbschale bei gleichzeitiger Abdichtung lediglich der notwendigen Bereiche sicherstellt. Falls weitere in der Abdeckplatte und/oder der Halbschale vorgesehene Durchgangsöffnungen ebenfalls mit abzudichten sind, so kann dies sehr einfach durch Ausweitung der Verschweißung bzw. Verklebung auch auf diese Bereiche erfolgen.The cover plate is connected in a preferred embodiment of the invention, at least along the channels, and preferably also around the outflow openings of the valves, with the half shell, preferably welded or glued, which ensures a reliable connection of the cover plate with the half shell while sealing only the necessary areas , If further passage openings provided in the cover plate and / or the half-shell are also to be sealed off, this can also be done very simply by widening the welding or bonding to these areas.

Nach einer besonders bevorzugten Weiterbildung der Erfindung weist die Ventilplatte auf ihrer Saugseite eine weitere Abdeckplatte auf, welche im Bereich der Saugöffnungen jeweils eine aus der Abdeckplatte herausgearbeitete, einseitig einstückig verbundene Sauglamelle aufweist und gegebenenfalls auf dieser Seite vorhandene Kühl- und/oder Medienkanäle abgedichtet, vorzugsweise verschweißt oder verklebt, überdeckt. Es ergibt sich damit eine äußerst vorteilhafte Kombination der vorliegenden Erfindung mit dem eingangs angesprochenen Stand der Technik, die vielfältigste Gestaltungsmöglichkeiten für derartige Ventilplatten eröffnet.According to a particularly preferred development of the invention, the valve plate has on its suction side a further cover plate, which in the region of the suction openings each one out of the cover plate, one side integrally connected suction lamella and optionally sealed on this side existing cooling and / or media channels, preferably welded or glued, covered. This results in a very advantageous combination of the present invention with the above-mentioned prior art, which opens the most diverse design options for such valve plates.

Die Erfindung wird im Folgenden noch anhand des in der Zeichnung schematisch dargestellten Ausführungsbeispiels näher erläutert. Fig. 1 zeigt dabei eine erfindungsgemäße Ventilplatte mit ihren wesentlichen Einzelheiten in Explosionsdarstellung, Fig. 2 die gleiche Ventilplatte im zusammengebauten Zustand von der Druckseite (Oberseite in Fig. 1) her und Fig. 3 die Ventilplatte von der Saugseite (in Fig. 1 von unten) betrachtet.The invention will be explained in more detail below with reference to the embodiment schematically illustrated in the drawing. Fig. 1 shows an inventive valve plate with its essential details in exploded view, Fig. 2 the same valve plate in the assembled state from the pressure side (top in Fig. 1 ) and Fig. 3 the valve plate from the suction side (in Fig. 1 from below).

Dargestellt ist in allen Figuren nur die Ventilplatte 1 selbst - der Zylinderblock eines der besseren Übersichtlichkeit weggelassenen Zweizylinder-Kolbenkompressors schließt in der Darstellung nach Fig. 1 und 2 unten an der Ventilplatte an - oberhalb wäre in diesen Figuren der Zylinderkopf vorzustellen, der Saug- und Druckkanäle samt entsprechenden Anschlüssen, Kühlkanäle und dergleichen aufweist.Shown in all figures, only the valve plate 1 itself - the cylinder block one of the better clarity omitted two-cylinder piston compressor concludes in the presentation Fig. 1 and 2 at the bottom of the valve plate - above would be presented in these figures, the cylinder head, the suction and pressure channels including the corresponding terminals, cooling channels and the like.

Die hier gemäß Fig. 1 und 2 nur auf der Druckseite (oben) Kühlkanäle 4,5 (bzw. auch nicht weiter dargestellte Medienkanäle beispielsweise für Steuerluft oder dergleichen) aufweisende Halbschale 3 ist von einer zumindest entlang der Kühlkanäle 4, 5 (sowie hier auch rund um die Zuströmöffnungen 6 der Saugventile 7) abgedichteten Abdeckplatte 2 überdeckt, welche im Bereich der Druckventile 8 herausgearbeitete, einseitig verbundene Hubbegrenzer 9 für die eingelegten Schließplatten 10 (Fig. 1) der Druckventile 8 aufweist. Die Abdeckplatte 2 ist gemäß Fig. 2 hier nicht nur entlang der Kühlkanäle 4, 5 und der Halbschale 3 bleibend verbunden (beispielsweise durch die angedeutete Schweißraupe 11 oder eine entsprechende Verklebung), sondern auch im Bereich um die Zuströmöffnungen 6 zu den Saugventilen 7, welche gemäß Fig. 3 auf der Unterseite der Ventilplatte von separat befestigten Sauglamellen 12 gesteuert werden. Davon abgesehen könnte aber auf der Saugseite auch eine weitere durchgehende Abdeckplatte angeordnet sein, welche im Bereich der Saugöffnungen jeweils eine aus dieser weiteren Abdeckplatte herausgearbeitete, einseitig einstückig verbundene Sauglamelle aufweist, womit (ähnlich wie druckseitig) zusätzlich auch gegebenenfalls auf dieser Seite vorhandene andere Kühl- und/oder Medienkanäle abgedichtet überdeckt werden könnten.The here according to Fig. 1 and 2 Only on the pressure side (above) cooling channels 4,5 (or also not shown media channels, for example, control air or the like) having half-shell 3 is of at least along the cooling channels 4, 5 (and here also around the inflow openings 6 of the suction valves. 7 ) sealed cover plate 2, which worked out in the region of the pressure valves 8, one-sided connected Hubbegrenzer 9 for the inserted closing plates 10 (FIG. Fig. 1 ) of the pressure valves 8. The cover plate 2 is according to Fig. 2 not only along the cooling channels 4, 5 and the half-shell 3 permanently connected (for example, by the indicated weld bead 11 or a corresponding bond), but also in the area around the inflow openings 6 to the suction valves 7, which according to Fig. 3 be controlled on the underside of the valve plate by separately attached suction blades 12. Apart from that, however, a further continuous cover plate could be arranged on the suction side, which in the region of the suction openings each one out of this further cover plate, one-piece integrally connected suction lamella, which (similar to the pressure side) additionally also optionally present on this page other cooling and / or media channels could be covered sealed.

Die dargestellte Ventilplatte 1 ist druckseitig aus lediglich vier Teilen gebildet - der Halbschale 3, der Abdeckplatte 2 mit den daran ausgebildeten Hubbegrenzern 9 und den eingelegten beiden Schließplatten 10 der Druckventile. Es gibt damit weniger Bauteile verbunden mit weniger Herstellungs- und Montageaufwand sowie weniger Gewicht und niedrigeren Kosten. Eine weitere Verbesserung könnte man wie erwähnt auf der Saugseite durch den Einsatz einer weiteren Abdeckplatte mit integrierten Sauglamellen erreichen.The illustrated valve plate 1 is the pressure side of only four parts formed - the half-shell 3, the cover plate 2 with the stroke limiter formed thereon 9 and the inserted two closing plates 10 of the pressure valves. There are thus fewer components associated with less manufacturing and assembly costs and less weight and lower costs. A further improvement could be achieved as mentioned on the suction side by the use of another cover plate with integrated suction lamellae.

Nur der Vollständigkeit halber ist hier weiters noch auf Passhülsen 13 für die korrekte Plazierung der Ventilplatte 1 zwischen Zylinder und Zylinderkopf sowie auf Befestigungselemente 14, 15 für die Sauglamellen 12 der Saugventile 7 an der Ventilplatte 1 zu verweisen.Only for the sake of completeness is here further still on dowel sleeves 13 for the correct placement of the valve plate 1 between cylinder and cylinder head and fasteners 14, 15 for the suction lamellae 12 of the suction valves 7 to the valve plate 1 to refer.

Claims (3)

Hohle Ventilplatte (1) für flüssigkeitsgekühlte Ventile (7, 8) eines Kolbenkompressors, mit einer Halbschale (3) mit einseitig offenen Kühlkanälen (4,5), welche von einer zumindest entlang der Kühlkanäle (4,5) abgedichteten dünnen Abdeckplatte (2) überdeckt ist, die aus dieser herausgearbeitete, einseitig einstückig verbundene Elemente der Ventile aufweist, dadurch gekennzeichnet, dass die Halbschale (3) zur Seite der Druckventile (8) hin offene Kühl- und/oder Medienkanäle (4,5) aufweist, die von der die herausgearbeiteten, einseitig verbundenen Hubbegrenzer (9) der eingelegten Schließplatten (10) der Druckventile (8) aufweisenden Abdeckplatte (2) überdeckt und abgedichtet sind.Hollow valve plate (1) for liquid-cooled valves (7, 8) of a reciprocating compressor, having a half-shell (3) with cooling channels (4, 5) open on one side, which are protected by a thin cover plate (2) sealed at least along the cooling channels (4, 5). is covered, which has worked out of this, one-piece integrally connected elements of the valves, characterized in that the half-shell (3) to the side of the pressure valves (8) towards open cooling and / or media channels (4,5), of the the outlined, one-sided connected Hubbegrenzer (9) of the inserted closing plates (10) of the pressure valves (8) having cover plate (2) are covered and sealed. Ventilplatte durch Anspruch 1, dadurch gekennzeichnet, dass die Abdeckplatte (2) zumindest entlang der Kanäle (4,5), sowie vorzugsweise auch rund um die Abströmöffnungen der Ventile (7,8), mit der Halbschale (3) verbunden, vorzugsweise verschweißt oder verklebt, ist.Valve plate by claim 1, characterized in that the cover plate (2) at least along the channels (4,5), and preferably also around the outflow openings of the valves (7,8) connected to the half-shell (3), preferably welded or glued, is. Ventilplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass auf ihrer Saugseite eine weitere Abdeckplatte angeordnet ist, welche im Bereich der Saugöffnungen jeweils eine aus der Abdeckplatte herausgearbeitete, einseitig einstückig verbundene Sauglamelle aufweist und gegebenenfalls auf dieser Seite vorhandene Kühl- und/oder Medienkanäle abgedichtet, vorzugsweise verschweißt oder verklebt, überdeckt.Valve plate according to claim 1 or 2, characterized in that on its suction side, a further cover plate is arranged, which in the region of the suction openings each one out of the cover plate, one side integrally connected suction lamella and optionally sealed on this side existing cooling and / or media channels , preferably welded or glued, covered.
EP20130171393 2012-09-14 2013-06-11 Hollow valve plate Withdrawn EP2708746A1 (en)

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Also Published As

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US20140076443A1 (en) 2014-03-20
AT512407B1 (en) 2013-08-15
AT512407A4 (en) 2013-08-15
US8950432B2 (en) 2015-02-10
CN103671032A (en) 2014-03-26

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