WO2020260077A1 - Valve for reciprocating compressor - Google Patents
Valve for reciprocating compressor Download PDFInfo
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- WO2020260077A1 WO2020260077A1 PCT/EP2020/066657 EP2020066657W WO2020260077A1 WO 2020260077 A1 WO2020260077 A1 WO 2020260077A1 EP 2020066657 W EP2020066657 W EP 2020066657W WO 2020260077 A1 WO2020260077 A1 WO 2020260077A1
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- Prior art keywords
- valve
- lamella
- stroke limiter
- plate
- spring element
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Classifications
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- 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
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- 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
- F04B39/125—Cylinder heads
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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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
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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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
Definitions
- the invention relates to an automatic valve for a reciprocating compressor.
- Such reciprocating compressors are available in different versions from the StdT, e.g. from DE 10 2014 111 526 A1, with reciprocating compressors essentially distinguishing between two valves, the valve through which air can flow into the cubic capacity and the valve through which compressed air is conveyed out of the cubic capacity
- the invention only takes into account the valve through which compressed air is conveyed out of the displacement into an outlet chamber.
- the outlet chamber is connected via an outlet channel e.g. connected directly to a compressed air reservoir.
- Reciprocating compressors are used in motor vehicles to supply a service brake operated with compressed air and / or an air suspension with compressed air, for example. Ambient air is sucked in by the compressor, compressed and cleaned of foreign components, such as oil and water, in other components of the compressed air supply device before use in the consumers.
- an outlet valve for piston compressors can be an automatic lamellar valve.
- Such valves are either fixed on one side or can move along a guide on both sides.
- Lamella valves are usually attached to the valve plate and close the channel that leads from the displacement through the valve plate.
- a major problem with previous designs is that the individual valve parts tend to fail at high air flow rates and the associated high temperatures.
- studies have shown that the air flow has an influence on the overall efficiency of the compressor. The exact structure is also described under FIG.
- the object of the invention is to propose an automatic valve which is an improvement on known valves for reciprocating compressors.
- the object is achieved according to the invention by an embodiment according to claim 1. Further advantageous features of the embodiment according to the invention can be found in the subclaims.
- An automatic valve for a reciprocating compressor comprising a valve lamella and a stroke limiter, is proposed, with a channel in a valve plate of the reciprocating compressor being able to be closed by means of the valve lamella.
- a valve with a valve lamella is now proposed, which can be clamped on one side between a clamping surface on the stroke limiter and the valve plate so that the valve lamella closes the channel in the idle state, and a spring element is also arranged between the stroke limiter and the valve lamella.
- an automatically operating valve is understood to mean a valve that is only switched via a pressure difference.
- this pressure difference results from the difference between the working space pressure in the displacement of the cylinder and the outlet chamber pressure in the space in which the valve is arranged.
- the spring element can preferably be clamped together with the valve lamella on one side between the stroke limiter and the valve plate. All components of the Valve can be attached to a valve plate for a reciprocating compressor by means of a connecting element, for example a screw.
- the clamping connection can comprise a positioning pin, which prevents the parts from rotating relative to one another.
- the spring element is arranged between the stroke limiter and the valve lamella in such a way that a first and a second movement space is formed when the valve lamella is in rest.
- the movement space is the space within which the valve lamellas or the valve lamella can be moved together with the spring element. The movement takes place exclusively due to the pressure differences described above through which the valve is opened or closed.
- the two movement spaces can be of different sizes, so that different conditions or damping properties of the spring element can be implemented on the valve lamella. This not only refers to the damping when the valve opens, but also to the less powerful spring-back of the valve lamella when the valve closes, so that the valve lamella strikes the valve plate with less force.
- the stroke limiter can have an arcuate stop surface which is tangentially connected to the clamping surface. In order to keep the bending load as low as possible, it is also advantageous if the curved stop surface has a radius which corresponds to 2 to 4 times the length of the movable valve lamella region (I).
- a wear plate can also be arranged between the valve plate and the valve lamella, which, together with the spring element and the valve lamella, can be clamped on one side between the stroke limiter and the valve plate.
- the valve consisting of the components stroke limiter, spring element, valve lamella and, alternatively, wear lamella, can be combined to form an assembly be, for example screwed, so as to be easier to mount as an assembly on the valve plate.
- Such an automatic valve according to one of the embodiments as described can be arranged in a cylinder head which comprises a valve plate and an outlet chamber to which an outlet channel is connected.
- the valve is arranged in the outlet chamber such that the
- valve lamella which lies against the stroke limiter when it is fully open, acts as a guide plate for the air flowing from the stroke chamber through the channels in the valve plate into the outlet chamber, which is discharged via the outlet channel.
- Figure 1 shows an automatic valve 1 according to the StdT for a reciprocating compressor.
- the valve 1 is mounted on the valve plate 6, which is part of the cylinder head for the compressor.
- the displacement 13, that is to say the compression chamber of the compressor, is located below the valve plate.
- Piston movement in the direction of the valve plate 6, the air located in the displacement 13 is compressed and conveyed via the channels 7 in the valve plate 6 and the valve 1 into an outlet chamber 12. From there, the compressed air is discharged via an outlet channel (not shown here).
- the valve 1 essentially consists of a wear plate 5 resting on the valve plate 6, a valve plate 4 arranged above it, a spring element 3 and a stroke limiter 2.
- the stroke limiter 2 and the wear plate 4 are fastened to the valve plate 6 in such a way that a gap 14 between Stroke limiter 2 and wear plate 4 on the Valve plate 6 rests, is formed, the height being defined by spacers 10a, b.
- valve lamella 4 experiences a further load when the piston moves downwards again in the displacement 13. Then the valve lamella 4 is suddenly sucked in the direction of the valve plate 6 and hits the valve plate 6 or the wear lamella 5 arranged above it.
- the valve plate 6 can be made of a softer material e.g. Aluminum, which would not withstand the impact load without protection.
- FIGS 2 and 3 now show a valve 1a according to the invention in the closed or open state.
- the valve 1a consists of similar components as the valve according to the StdT, which have essentially the same function.
- the components of the valve 1 a are mounted on a valve plate 6.
- the valve 1 a comprises one resting on the valve plate 6
- Wear plate 5 a valve plate 4 arranged above it, a spring element 3 and a stroke limiter 2.
- the valve lamella 4 as well as the spring element 3 consist of a flat material that is elastic and has a spring effect, such as a spring plate, whereby the materials used can also have different properties.
- the stroke limiter 2 is here a relatively robust or solid component, by means of which the other components of the valve 1a are fixed between the clamping surface 17 on the stroke limiter 2 and the valve plate 6. The clamping force is applied by means of the screws 8 and a positioning pin 11 is provided for fixing the position.
- valve lamella 4 The movement space 15a between spring element 3 and valve lamella 4 has the effect that valve lamella 4 can initially be opened relatively easily, which reduces the resistance for the reciprocating piston when pushing out the air and thus increases the overall efficiency of the compressor.
- valve lamella 4 experiences a certain damping during further movement by the spring element 3, which acts as a brake for the lamellae, so that the stop forces on the stroke limiter 2 are reduced.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Check Valves (AREA)
Abstract
Description
Ventil für Hubkolbenkompressor Reciprocating compressor valve
Die Erfindung betrifft ein selbsttätiges Ventil für einen Hubkolbenkompressor. Derartige Hubkolbenkompressoren sind in unterschiedlichen Ausführungen aus dem StdT wie z.B. der DE 10 2014 111 526 A1 hinreichend bekannt, wobei man bei Hubkolbenkompressoren im Wesentlichen zwischen zwei Ventilen unterscheidet, dem Ventil durch welches Luft in den Hubraum strömen kann und dem Ventil durch welches komprimierte Luft aus dem Hubraum herausgefördert wird The invention relates to an automatic valve for a reciprocating compressor. Such reciprocating compressors are available in different versions from the StdT, e.g. from DE 10 2014 111 526 A1, with reciprocating compressors essentially distinguishing between two valves, the valve through which air can flow into the cubic capacity and the valve through which compressed air is conveyed out of the cubic capacity
Die Erfindung berücksichtigt lediglich das Ventil, durch welches komprimierte Luft aus dem Hubraum heraus in eine Auslasskammer gefördert wird. Die Auslasskammer ist über einen Auslasskanal z.B. direkt mit einem Druckluftspeicher verbunden. Hubkolbenkompressoren werden in Kraftfahrzeugen verwendet um beispielsweise eine mit Druckluft betriebene Betriebsbremse und/oder eine Luftfederung mit Druckluft zu versorgen. Umgebungsluft wird von dem Kompressor angesaugt, komprimiert und vor der Verwendung in den Verbrauchern von Fremdbestandteilen, wie Öl und Wasser, in weiteren Bestandteilen der Druckluftversorgungseinrichtung gereinigt. The invention only takes into account the valve through which compressed air is conveyed out of the displacement into an outlet chamber. The outlet chamber is connected via an outlet channel e.g. connected directly to a compressed air reservoir. Reciprocating compressors are used in motor vehicles to supply a service brake operated with compressed air and / or an air suspension with compressed air, for example. Ambient air is sucked in by the compressor, compressed and cleaned of foreign components, such as oil and water, in other components of the compressed air supply device before use in the consumers.
Moderne Kompressoren stellen infolge der stetig wachsenden Anforderung an die Effizienz hohe Anforderungen an die Bauteile wie die Ventilplatte, die Ventile und den Zylinderkopf. Diese Bauteile werden durch die thermischen und mechanischen Lasten aus dem Kompressionsvorgang stark beansprucht. As a result of the steadily growing demands on efficiency, modern compressors place high demands on components such as the valve plate, the valves and the cylinder head. These components are heavily stressed by the thermal and mechanical loads from the compression process.
In der oben genannten Schrift wird bereits offenbart, dass ein Auslassventil für Kolbenkompressoren ein selbsttätiges Lamellenventil sein kann. Derartige Ventile sind entweder einseitig fixiert oder können sich entlang einer beidseitigen Führung bewegen. Lamellenventile sind in der Regel auf der Ventilplatte befestigt und verschließen den Kanal der vom Hubraum durch die Ventilpatte führt. Ein wesentliches Problem der bisherigen Konstruktionen ist es, das die einzelnen Ventilteile bei hohen Luftdurchsätzen und den damit verbundenen hohen Temperaturen zum Versagen neigen. Zudem haben Untersuchungen gezeigt, dass die Luftführung einen Einfluss auf den Gesamtwirkungsgrad des Kompressors hat. Der genaue Aufbau wird auch unter Fig. 1 beschrieben. The above-mentioned document already discloses that an outlet valve for piston compressors can be an automatic lamellar valve. Such valves are either fixed on one side or can move along a guide on both sides. Lamella valves are usually attached to the valve plate and close the channel that leads from the displacement through the valve plate. A major problem with previous designs is that the individual valve parts tend to fail at high air flow rates and the associated high temperatures. In addition, studies have shown that the air flow has an influence on the overall efficiency of the compressor. The exact structure is also described under FIG.
Die Aufgabe der Erfindung ist es, ein selbsttätiges Ventil vorzuschlagen, das eine Verbesserung zu bekannten Ventilen für Hubkolbenkompressoren darstellt. Die Aufgabe wird erfindungsgemäß durch eine Ausführung entsprechend Anspruch 1 gelöst. Weitere vorteilhafte Merkmale der erfindungsgemäßen Ausführung finden sich in den Unteransprüchen. The object of the invention is to propose an automatic valve which is an improvement on known valves for reciprocating compressors. The object is achieved according to the invention by an embodiment according to claim 1. Further advantageous features of the embodiment according to the invention can be found in the subclaims.
Es wird ein selbsttätiges Ventil für einen Hubkolbenkompressor, umfassend eine Ventillamelle und einen Hubbegrenzer vorgeschlagen, wobei mittels der Ventillamelle ein Kanal in einer Ventilplatte des Hubkolbenkompressors verschließbar ist. An automatic valve for a reciprocating compressor, comprising a valve lamella and a stroke limiter, is proposed, with a channel in a valve plate of the reciprocating compressor being able to be closed by means of the valve lamella.
Erfindungsgemäß wird nun ein Ventil mit einer Ventillamelle vorgeschlagen, die einseitig zwischen einer Klemmfläche am Hubbegrenzer und der Ventilplatte klemmbar ist, so dass die Ventillamelle im Ruhezustand den Kanal verschließt, und weiterhin ein Federelement zwischen dem Hubbegrenzer und der Ventillamelle angeordnet ist. According to the invention, a valve with a valve lamella is now proposed, which can be clamped on one side between a clamping surface on the stroke limiter and the valve plate so that the valve lamella closes the channel in the idle state, and a spring element is also arranged between the stroke limiter and the valve lamella.
Unter einem selbsttätig arbeitenden Ventil wird im Sinne der Erfindung ein Ventil verstanden, dass nur über eine Druckdifferenz geschaltet wird. Diese Druckdifferenz ergibt sich in einem Hubkolbenkompressor aus der Differenz zwischen dem Arbeitsraumdruck im Hubraum des Zylinders und dem Auslasskammerdruck im Raum in dem das Ventil angeordnet ist. Vorzugsweise ist das Federelement zusammen mit der Ventillamelle einseitig zwischen Hubbegrenzer und Ventilplatte klemmbar. So können alle Bauteile des Ventils mittels einem Verbindungselement z.B. Schraube an einer Ventilplatte für einen Hubkolbenkompressor befestigt werden. Des Weiteren kann die Klemmverbindung einen Positionierstift umfassen, durch den ein Verdrehen der Teile zueinander verhindert wird. In the context of the invention, an automatically operating valve is understood to mean a valve that is only switched via a pressure difference. In a reciprocating piston compressor, this pressure difference results from the difference between the working space pressure in the displacement of the cylinder and the outlet chamber pressure in the space in which the valve is arranged. The spring element can preferably be clamped together with the valve lamella on one side between the stroke limiter and the valve plate. All components of the Valve can be attached to a valve plate for a reciprocating compressor by means of a connecting element, for example a screw. Furthermore, the clamping connection can comprise a positioning pin, which prevents the parts from rotating relative to one another.
In einer bevorzugten Ausführung ist das Federelement derart zwischen Hubbegrenzer und Ventillamelle angeordnet, dass im Ruhezustand der Ventillamelle ein erster und zweiter Bewegungsraum gebildet wird. Der Bewegungsraum ist der Raum innerhalb dem die Ventillamellen oder die Ventillamelle zusammen mit dem Federelement bewegbar sind. Die Bewegung erfolgt ausschließlich aufgrund der oben beschriebenen Druckdifferenzen durch die das Ventil geöffnet oder geschlossen wird. In a preferred embodiment, the spring element is arranged between the stroke limiter and the valve lamella in such a way that a first and a second movement space is formed when the valve lamella is in rest. The movement space is the space within which the valve lamellas or the valve lamella can be moved together with the spring element. The movement takes place exclusively due to the pressure differences described above through which the valve is opened or closed.
Weiterhin können die beiden Bewegungsräume unterschiedlich groß sein, sodass unterschiedliche Bedingungen oder Dämpfungseigenschaften des Federelementes auf die Ventillamelle realisierbar sind. Dabei ist nicht nur die Dämpfung bei der Ventilöffnung gemeint sondern auch die weniger kraftvolle Rückfederung der Ventillamelle, wenn sich das Ventil schließt, so dass die Ventillamelle mit einer geringeren Kraft auf die Ventilplatte aufschlägt. In einer weiterhin bevorzugten Ausführung kann der Hubbegrenzer eine bogenförmige Anschlagfläche aufweisen, die tangential an die Klemmfläche anschließt. Um die Biegebelastung möglichst gering zu halten ist es weiterhin vorteilhaft wenn die bogenförmige Anschlagfläche einen Radius aufweist, der der 2 bis 4 fachen Länge des beweglichen Ventillamellenbereichs (I) entspricht. Furthermore, the two movement spaces can be of different sizes, so that different conditions or damping properties of the spring element can be implemented on the valve lamella. This not only refers to the damping when the valve opens, but also to the less powerful spring-back of the valve lamella when the valve closes, so that the valve lamella strikes the valve plate with less force. In a further preferred embodiment, the stroke limiter can have an arcuate stop surface which is tangentially connected to the clamping surface. In order to keep the bending load as low as possible, it is also advantageous if the curved stop surface has a radius which corresponds to 2 to 4 times the length of the movable valve lamella region (I).
Zum Schutz der Ventilplatte kann zwischen Ventilplatte und Ventillamelle weiterhin eine Verschleißlamelle angeordnet sein, die zusammen mit dem Federelement und der Ventillamelle einseitig zwischen Hubbegrenzer und Ventilplatte klemmbar ist. Das Ventil, bestehend aus den Bauteilen Hubbegrenzer, Federelement, Ventillamelle und alternativ auch Verschleißlamelle können zu einer Baugruppe zusammengefasst sein, z.B. verschraubt sein, um so als Baugruppe einfacher auf der Ventilplatte montierbar zu sein. To protect the valve plate, a wear plate can also be arranged between the valve plate and the valve lamella, which, together with the spring element and the valve lamella, can be clamped on one side between the stroke limiter and the valve plate. The valve, consisting of the components stroke limiter, spring element, valve lamella and, alternatively, wear lamella, can be combined to form an assembly be, for example screwed, so as to be easier to mount as an assembly on the valve plate.
Ein solches selbsttätiges Ventil entsprechend einer der Ausführungen wie beschrieben kann in einem Zylinderkopf angeordnet sein, der eine Ventilplatte und eine Auslasskammer, an die ein Auslasskanal angeschlossen ist, umfasst. Such an automatic valve according to one of the embodiments as described can be arranged in a cylinder head which comprises a valve plate and an outlet chamber to which an outlet channel is connected.
Vorzugsweise ist das Ventil in der Auslasskammer derart angeordnet, dass diePreferably, the valve is arranged in the outlet chamber such that the
Längsachse der Ventillamelle in Richtung des Auslasskanals ausgerichtet ist. Dadurch wirkt die bei voller Öffnung am Hubbegrenzer anliegende Ventillamelle als Leitblech für die von der Hubkammer durch die Kanäle in der Ventilplatte in die Auslasskammer strömende Luft, die über den Auslasskanal abgeführt wird. The longitudinal axis of the valve lamella is aligned in the direction of the outlet channel. As a result, the valve lamella, which lies against the stroke limiter when it is fully open, acts as a guide plate for the air flowing from the stroke chamber through the channels in the valve plate into the outlet chamber, which is discharged via the outlet channel.
Die Figuren zeigen im Einzelnen: The figures show in detail:
Fig.1 Ventil entsprechend dem StdT Fig. 1 valve according to the StdT
Fig.2 erfindungsgemäßes Ventil - geschlossen 2 valve according to the invention - closed
Fig. 3 erfindungsgemäßes Ventil - geöffnet Fig. 3 valve according to the invention - open
Figur 1 zeigt ein selbsttätiges Ventil 1 entsprechend dem StdT für einen Hubkolbenkompressor. Das Ventil 1 ist auf die Ventilplatte 6 montiert, die Teil des Zylinderkopfes für den Kompressor ist. Unterhalb der Ventilplatte befindet sich der Hubraum 13 also der Kompressionsraum des Kompressors. Bei einerFigure 1 shows an automatic valve 1 according to the StdT for a reciprocating compressor. The valve 1 is mounted on the valve plate 6, which is part of the cylinder head for the compressor. The displacement 13, that is to say the compression chamber of the compressor, is located below the valve plate. At a
Kolbenbewegung (Kolben hier nicht dargestellt) in Richtung der Ventilplatte 6 wird die im Hubraum 13 befindliche Luft komprimiert und über die Kanäle 7 in der Ventilplatte 6 und das Ventil 1 in eine Auslasskammer 12 gefördert. Von dort wird die komprimierte Luft über einen hier nicht dargestellten Auslasskanal abgeführt. Piston movement (piston not shown here) in the direction of the valve plate 6, the air located in the displacement 13 is compressed and conveyed via the channels 7 in the valve plate 6 and the valve 1 into an outlet chamber 12. From there, the compressed air is discharged via an outlet channel (not shown here).
Das Ventil 1 besteht im Wesentlichen aus einer auf der Ventilplatte 6 aufliegenden Verschleißlamelle 5, einer darüber angeordneten Ventillamelle 4, einem Federelement 3 und einem Hubbegrenzer 2. Der Hubbegrenzer 2 und die Verschleißlamelle 4 sind derart auf der Ventilplatte 6 befestigt, dass ein Zwischenraum 14 zwischen Hubbegrenzer 2 und Verschleißlamelle 4, die auf der Ventilplatte 6 aufliegt, gebildet wird, wobei die Höhe über Distanzstücke 10a, b definiert ist. The valve 1 essentially consists of a wear plate 5 resting on the valve plate 6, a valve plate 4 arranged above it, a spring element 3 and a stroke limiter 2. The stroke limiter 2 and the wear plate 4 are fastened to the valve plate 6 in such a way that a gap 14 between Stroke limiter 2 and wear plate 4 on the Valve plate 6 rests, is formed, the height being defined by spacers 10a, b.
Bei jeder Hubbewegung des Kolbens nach oben wird die Luft im Hubraum 13 komprimiert und ab einem bestimmten Druckdifferenz wird die Ventillamelle 4 gegen die Federkraft des Federelementes 3 derart nach oben bewegt, dass die Luft durch den Kanal 7 in die Auslasskammer 12 strömt. Der Hub der beweglich zwischen den Distanzstücken eingelegten Ventillamelle 4 und des eingelegten Federelementes 3 ist durch den Hubbegrenzer 2 begrenzt, so dass die Bewegung und Verbiegung der Teile begrenzt wird. Dennoch führt die häufige Verbiegung in der Praxis immer wieder zum Bruch des Federelementes 3. With each upward stroke movement of the piston, the air in the displacement 13 is compressed and, from a certain pressure difference, the valve lamella 4 is moved upward against the spring force of the spring element 3 in such a way that the air flows through the channel 7 into the outlet chamber 12. The stroke of the valve lamella 4 inserted movably between the spacers and of the inserted spring element 3 is limited by the stroke limiter 2, so that the movement and bending of the parts is limited. Nevertheless, the frequent bending in practice always leads to breakage of the spring element 3.
Eine weitere Belastung erfährt die Ventillamelle 4, wenn der Kolben sich im Hubraum 13 wieder nach unten bewegt. Dann wird die Ventillamelle 4 schlagartig in Richtung Ventilplatte 6 gesaugt und schlägt auf der Ventilplatte 6 bzw. der darüber angeordneten Verschleißlamelle 5 auf. Bei der Verwendung einer Verschleißlamelle 5 auf der Ventilplatte 6 kann die Ventilplatte 6 aus einem weicheren Material z.B. Aluminium gefertigt werden, die die Schlagbelastung ohne Schutz nicht dauerhaft standhalten würde. The valve lamella 4 experiences a further load when the piston moves downwards again in the displacement 13. Then the valve lamella 4 is suddenly sucked in the direction of the valve plate 6 and hits the valve plate 6 or the wear lamella 5 arranged above it. When using a wear plate 5 on the valve plate 6, the valve plate 6 can be made of a softer material e.g. Aluminum, which would not withstand the impact load without protection.
Die Figuren 2 und 3 zeigten nun ein erfindungsgemäßes Ventil 1a im geschlossenen bzw. geöffneten Zustand. Das Ventil 1a besteht aus ähnlichen Bauteilen wie das Ventil entsprechend dem StdT, die im Wesentlichen die gleiche Funktion haben. Die Bauteile des Ventils 1 a sind auf einer Ventilplatte 6 montiert. In der dargestellten Ausführung umfasst das Ventil 1 a eine auf der Ventilplatte 6 aufliegendeFigures 2 and 3 now show a valve 1a according to the invention in the closed or open state. The valve 1a consists of similar components as the valve according to the StdT, which have essentially the same function. The components of the valve 1 a are mounted on a valve plate 6. In the embodiment shown, the valve 1 a comprises one resting on the valve plate 6
Verschleißlamelle 5, eine darüber angeordneten Ventillamelle 4, ein Federelement 3 und einen Hubbegrenzer 2. Wear plate 5, a valve plate 4 arranged above it, a spring element 3 and a stroke limiter 2.
Ventillamelle 4 wie auch das Federelement 3 bestehen aus einem Flachmaterial, das elastisch ist und eine Federwirkung hat, wie z.B. ein Federblech, wobei die verwendeten Materialien auch unterschiedliche Eigenschaften aufweisen können. Der Hubbegrenzer 2 ist hier ein relativ robustes bzw. massives Bauteil, durch das die weiteren Bauteile des Ventils 1 a zwischen der Klemmfläche 17 am Hubbegrenzer 2 und der Ventilplatte 6 fixiert werden. Die Klemmkraft wird mittels der Schrauben 8 aufgebracht und zur Lagefixierung ist ein Positionierstift 11 vorgesehen. The valve lamella 4 as well as the spring element 3 consist of a flat material that is elastic and has a spring effect, such as a spring plate, whereby the materials used can also have different properties. The stroke limiter 2 is here a relatively robust or solid component, by means of which the other components of the valve 1a are fixed between the clamping surface 17 on the stroke limiter 2 and the valve plate 6. The clamping force is applied by means of the screws 8 and a positioning pin 11 is provided for fixing the position.
Bei jeder Hubbewegung des Kolbens in dem Hubraum 13 nach oben wird die Luft im Hubraum 13 komprimiert und ab einem bestimmten Kompressionsgrad erfolgt die Öffnung des Ventils 1 a, bei der die Ventillamelle 4 in einem ersten Schritt gegen die eigene Federkraft nach oben gebogen wird, so dass die Luft durch den Kanal 7 in die Auslasskammer 14 strömt. Die Verbiegung der Ventillamelle 4 erfolgt in diesem ersten Schritt bis zum Anschlag an das Federelement 3. In zweiten Schritt erfolgt eine weitere Verbiegung, nun zusammen mit dem Federelement 3, die die Ventillamelle 4 stützt, bis zum Anschlag an den Hubbegrenzer 2. Die Bewegung bzw. Verbiegung wird durch den Hubbegrenzer 2 dadurch begrenzt, dass das Federelement 3 zusammen mit der Ventillamelle 4 gegen die Anschlagfläche 16 schlägt. With each stroke movement of the piston upwards in the displacement 13, the air in the displacement 13 is compressed and, from a certain degree of compression, the valve 1 a is opened, in which the valve lamella 4 is bent upwards in a first step against its own spring force, so that the air flows through the channel 7 into the outlet chamber 14. The bending of the valve lamella 4 takes place in this first step up to the stop on the spring element 3. In the second step, a further bending takes place, now together with the spring element 3, which supports the valve lamella 4, up to the stop on the stroke limiter 2. The movement or Bending is limited by the stroke limiter 2 in that the spring element 3, together with the valve lamella 4, strikes against the stop surface 16.
Der Bewegungsraum 15a zwischen Federelement 3 und Ventillamelle 4 bewirkt, dass das Ventillamelle 4 sich zunächst relativ einfach öffnen lässt, was den Wiederstand für den Hubkolben beim herausdrücken der Luft verringert und damit den Gesamtwirkungsgrad des Kompressors erhöht. The movement space 15a between spring element 3 and valve lamella 4 has the effect that valve lamella 4 can initially be opened relatively easily, which reduces the resistance for the reciprocating piston when pushing out the air and thus increases the overall efficiency of the compressor.
Eine gewisse Dämpfung erfährt die Ventillamelle 4 bei der weiteren Bewegung durch das Federelement 3, das als Bremse für die Lamelle wirkt, so dass die Anschlagskräfte auf den Hubbegrenzer 2 reduziert werden. The valve lamella 4 experiences a certain damping during further movement by the spring element 3, which acts as a brake for the lamellae, so that the stop forces on the stroke limiter 2 are reduced.
Im geöffneten Zustand wirken die an dem Hubbegrenzer 2 anliegenden Bauteile, Federelement 3 und Ventillamelle 3, als Luftleiter, durch den die komprimierte Luft gezielt in die Auslasskammer 12 eingeleitet wird. Dies kann derart erfolgen, dass die Luft in Richtung des Auslasskanals geleitet wird oder eine Kühlvorrichtung in gewünschter Weise angeströmt wird. Bezugszeichenliste , 1 a Ventil In the open state, the components resting on the stroke limiter 2, the spring element 3 and the valve lamella 3, act as an air conductor through which the compressed air is introduced into the outlet chamber 12 in a targeted manner. This can be done in such a way that the air is directed in the direction of the outlet channel or a cooling device is flown against in the desired manner. List of reference symbols, 1 a valve
Hubbegrenzer Stroke limiter
FederelementSpring element
VentillamelleValve disc
VerschleißlamelleWear plate
VentilplatteValve plate
Kanal channel
Verschraubung Screw connection
Strömung0a, b DistanzstückFlow0a, b spacer
1 Positionierstift2 Auslasskammer3 Hubraum1 positioning pin 2 exhaust chamber 3 displacement
4 Zwischenraum5a, b Bewegungsraum6 Anschlagfläche7 Klemmfläche 4 space5a, b space for movement 6 stop surface 7 clamping surface
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019117451.1 | 2019-06-28 | ||
| DE102019117451.1A DE102019117451A1 (en) | 2019-06-28 | 2019-06-28 | Reciprocating compressor valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020260077A1 true WO2020260077A1 (en) | 2020-12-30 |
Family
ID=71266616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2020/066657 Ceased WO2020260077A1 (en) | 2019-06-28 | 2020-06-17 | Valve for reciprocating compressor |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102019117451A1 (en) |
| WO (1) | WO2020260077A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2788473C1 (en) * | 2022-02-14 | 2023-01-19 | Акционерное общество "Конструкторское бюро химического машиностроения имени А.М. Исаева" | Check valve |
| CN116147452A (en) * | 2022-12-05 | 2023-05-23 | 青岛万宝压缩机有限公司 | Compressor exhaust valve plate lift measuring method, valve plate assembly and compressor |
| WO2026070836A1 (en) * | 2024-09-26 | 2026-04-02 | ダイキン工業株式会社 | Rotary compressor and refrigeration cycle device |
| JP2026059757A (en) * | 2024-09-26 | 2026-04-07 | ダイキン工業株式会社 | Rotary compressor and refrigeration cycle system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024103000A1 (en) | 2024-02-02 | 2025-08-07 | Schaeffler Technologies AG & Co. KG | Refrigerant compressor |
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|---|---|---|---|---|
| EP0388633A1 (en) * | 1989-03-22 | 1990-09-26 | WABCO Westinghouse Fahrzeugbremsen GmbH | Pressure valve for a compressor |
| KR19980026024U (en) * | 1996-11-07 | 1998-08-05 | 구자홍 | Valve device of hermetic compressor |
| JP2002235660A (en) * | 2001-02-06 | 2002-08-23 | Calsonic Kansei Corp | Delivery valve device and compressor with same |
| WO2007004722A1 (en) * | 2005-07-04 | 2007-01-11 | Matsushita Electric Industrial Co., Ltd. | Refrigerant compressor |
| JP2013177820A (en) * | 2012-02-28 | 2013-09-09 | Aisin Seiki Co Ltd | Reed valve and compression device |
| DE102014111526A1 (en) | 2014-08-13 | 2016-02-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Fully integrated cylinder head for a compressor |
| WO2016082015A1 (en) * | 2014-11-25 | 2016-06-02 | Whirlpool S.A. | Reciprocating compressor valves arrangement |
-
2019
- 2019-06-28 DE DE102019117451.1A patent/DE102019117451A1/en not_active Withdrawn
-
2020
- 2020-06-17 WO PCT/EP2020/066657 patent/WO2020260077A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0388633A1 (en) * | 1989-03-22 | 1990-09-26 | WABCO Westinghouse Fahrzeugbremsen GmbH | Pressure valve for a compressor |
| KR19980026024U (en) * | 1996-11-07 | 1998-08-05 | 구자홍 | Valve device of hermetic compressor |
| JP2002235660A (en) * | 2001-02-06 | 2002-08-23 | Calsonic Kansei Corp | Delivery valve device and compressor with same |
| WO2007004722A1 (en) * | 2005-07-04 | 2007-01-11 | Matsushita Electric Industrial Co., Ltd. | Refrigerant compressor |
| JP2013177820A (en) * | 2012-02-28 | 2013-09-09 | Aisin Seiki Co Ltd | Reed valve and compression device |
| DE102014111526A1 (en) | 2014-08-13 | 2016-02-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Fully integrated cylinder head for a compressor |
| WO2016082015A1 (en) * | 2014-11-25 | 2016-06-02 | Whirlpool S.A. | Reciprocating compressor valves arrangement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2788473C1 (en) * | 2022-02-14 | 2023-01-19 | Акционерное общество "Конструкторское бюро химического машиностроения имени А.М. Исаева" | Check valve |
| CN116147452A (en) * | 2022-12-05 | 2023-05-23 | 青岛万宝压缩机有限公司 | Compressor exhaust valve plate lift measuring method, valve plate assembly and compressor |
| WO2026070836A1 (en) * | 2024-09-26 | 2026-04-02 | ダイキン工業株式会社 | Rotary compressor and refrigeration cycle device |
| JP2026059757A (en) * | 2024-09-26 | 2026-04-07 | ダイキン工業株式会社 | Rotary compressor and refrigeration cycle system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019117451A1 (en) | 2020-12-31 |
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