EP3837440B1 - Cylinder head for compressor - Google Patents

Cylinder head for compressor Download PDF

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Publication number
EP3837440B1
EP3837440B1 EP19744669.3A EP19744669A EP3837440B1 EP 3837440 B1 EP3837440 B1 EP 3837440B1 EP 19744669 A EP19744669 A EP 19744669A EP 3837440 B1 EP3837440 B1 EP 3837440B1
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EP
European Patent Office
Prior art keywords
cylinder head
chamber
chambers
compressor
head according
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EP19744669.3A
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German (de)
French (fr)
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EP3837440A1 (en
Inventor
Marius BURKAUSKAS
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Voith Patent GmbH
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Voith Patent GmbH
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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
    • 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

Definitions

  • the invention relates to a cylinder head for a compressor, in particular a reciprocating piston compressor for use in motor vehicles, which is suitable for compressing a compressible working medium, in particular air, for use in a compressed air supply device of a motor vehicle.
  • Reciprocating compressors or compressors or air compressors are used to compress gases, e.g. B. air, which is used as a working medium for operating various units in a motor vehicle.
  • the reciprocating compressor essentially consists of a base body, or crankshaft housing or cylinder housing, in which at least one reciprocating piston is arranged, and a cylinder head.
  • ambient air is sucked into the reciprocating piston chamber via an inlet duct, compressed and then passed on via a duct.
  • the compressed air is passed on to a further or subsequent compressor stage and is further compressed there.
  • the compressed air is then fed into the compressed air tank via an air treatment unit.
  • Such a cylinder head is, for example, from DE 10 2015 225 069 A1 known and consists of several components that are arranged in layers on top of each other.
  • the components form different channels or chambers through which air or a cooling medium, in particular cooling water, flows.
  • the duct routing through the cylinder head or through the individual components of the cylinder head is selected in such a way that the duct is as long as possible and runs as close as possible to the coolant duct. Due to the compact design of the cylinder head, however, it cannot be avoided that heat exchange takes place between the air flows that are guided through the cylinder head and have different temperatures.
  • an air compressor which has a cylinder head with at least one intake port and one pressure port.
  • the intake channel can be closed in a pressure-tight manner in relation to a compression space by means of a suction plate.
  • Sections of the intake port are surrounded by a substantially concentric annular groove near the intake fins, which thermally insulates the end section of the intake port from the cylinder head.
  • the JP H11218079 discloses a cylinder head with cooling water channels located between the channels for the fluid to be compressed.
  • the object of the invention is to improve the cylinder head structure in such a way that the efficiency of the reciprocating compressor is increased.
  • a cylinder head for a reciprocating compressor for compressing a compressible working medium comprising a cylinder cover and a valve carrier plate, which is constructed as follows and has the following features.
  • An intermediate element is arranged between the cylinder cover and the valve carrier plate, and several channel sections and/or chambers are arranged or formed between the valve carrier plate and the intermediate element and between the cylinder cover and the intermediate element, through which different media flows can be conducted.
  • one or more insulating chambers are provided in the cylinder head, which thermally insulate the channel sections and/or chambers from one another at least in certain areas.
  • an inlet space and an outlet space are provided, between which the insulating chamber is arranged.
  • further insulating chambers can also be arranged between different temperature ranges.
  • an outlet channel can be provided in the cylinder head, with the insulating channel thermally isolating the inlet chamber and the outlet chamber at least in regions from the outlet channel.
  • the insulating chambers can essentially be formed by indentations in the valve carrier plate and/or in the cylinder cover. The depressions are then closed by means of the intermediate element.
  • the isolation chambers contain trapped ambient air. This means that no additional work step needs to be scheduled during assembly.
  • the insulating chambers can also be filled with an insulating material or contain a vacuum.
  • the intermediate element can also be a sealing element.
  • the cylinder head can be a cylinder head for a multi-stage reciprocating compressor, the inlet chambers of the compressor stages being arranged between the outlet chambers of the compressor stages.
  • an isolation chamber may be arranged in the inlet chamber of the first compressor stage.
  • figure 1 shows a two-stage reciprocating compressor 1 or compressor with cylinder head 2 in section.
  • the cutting course is off figure 2 refer to.
  • the cylinder head 2 consists of the valve carrier plate 5, the cylinder head cover 7 and an intermediate element 6 arranged between them.
  • figure 2 shows a plan view of the cylinder head 2, the section line AA from figure 1 can be seen.
  • the reciprocating compressor 1 has a water cooling system that runs through the cylinder housing 3 and through the cylinder head 2 .
  • the insulating chambers 9.1 and 9.2 are arranged such that in particular the duct section 10, through which the hot compressed air of the second compressor stage 18 is conducted to the outlet opening 20, is isolated from the chambers 14.1, 14.2, 15.1 and 15.2. This prevents the intake air, in particular the cool ambient air, and the pre-compressed air, which is routed from the first compressor stage 17 to the second compressor stage 18 , from being undesirably heated.
  • the insulating chambers 9.1 and 9.2 are closed cavities which are essentially formed by depressions in the valve carrier plate 5 and in the cylinder cover 7 and are closed by the intermediate element 6.
  • the insulating chambers 9.1 and 9.2 are filled with ambient air that was trapped during assembly.
  • the pre-compressed air from the first compressor stage 17 is cooled as far as possible before it is sucked into the second compressor stage 18 via the inlet chamber 14.2.
  • the air flow from the outlet chamber 15.1 of the first compressor stage 17 is guided through a connecting duct 19 in the cylinder housing 3.
  • the walls of the connecting channel 19 are in contact with the cooling channel 8.2 and also have a large cooling surface compared to the ambient air.
  • figure 3 shows an alternative structure for a cylinder head 1. This differs essentially in the arrangement of the channels and chambers.
  • the insulating chambers 9.3 are arranged here between the connecting channel 19 and the compressed air channel 10.
  • the insulating chamber 9.3 is worked into the valve carrier plate 5 and is closed by the sealing element 4.

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

Description

Die Erfindung betrifft einen Zylinderkopf für einen Kompressor, insbesondere einen Hubkolbenkompressor für den Einsatz in Kraftfahrzeugen, der zum Verdichten eines kompressiblen Arbeitsmediums, insbesondere Luft, für den Einsatz in einer Druckluftversorgungsvorrichtung eines Kraftfahrzeugs, geeignet ist.The invention relates to a cylinder head for a compressor, in particular a reciprocating piston compressor for use in motor vehicles, which is suitable for compressing a compressible working medium, in particular air, for use in a compressed air supply device of a motor vehicle.

Hubkolbenverdichter bzw. Verdichter oder Luftpresser dienen der Kompression von Gasen, z. B. Luft, die als Arbeitsmedium zum Betrieb verschiedener Aggregate in einem Kraftfahrzeug genutzt wird.Reciprocating compressors or compressors or air compressors are used to compress gases, e.g. B. air, which is used as a working medium for operating various units in a motor vehicle.

Der Hubkolbenverdichter besteht im Wesentlichen aus einem Grundkörper, bzw. Kurbelwellengehäuse oder Zylindergehäuse, in dem mindestens ein Hubkolben angeordnet ist, und einem Zylinderkopf. Im Betrieb wird Umgebungsluft über einen Einlasskanal in den Hubkolbenraum eingesaugt, verdichtet und anschließend über einen Kanal weitergeleitet. Bei einem mehrstufigen Hubkolbenverdichter erfolgt die Weiterleitung der verdichteten Luft in eine weitere bzw. nachfolgende Verdichterstufe und wird dort weiter verdichtet. Die komprimierte Luft wird anschließend über eine Luftaufbereitungseinheit in den Druckluftbehälter geleitet.The reciprocating compressor essentially consists of a base body, or crankshaft housing or cylinder housing, in which at least one reciprocating piston is arranged, and a cylinder head. During operation, ambient air is sucked into the reciprocating piston chamber via an inlet duct, compressed and then passed on via a duct. In a multi-stage reciprocating compressor, the compressed air is passed on to a further or subsequent compressor stage and is further compressed there. The compressed air is then fed into the compressed air tank via an air treatment unit.

Ein derartiger Zylinderkopf ist beispielsweise aus der DE 10 2015 225 069 A1 bekannt und setzt sich aus mehreren Bauteilen zusammen, die schichtweise übereinander angeordnet sind. Die Bauteile bilden unterschiedliche Kanäle oder Kammern, durch die Luft oder ein Kühlmedium, insbesondere Kühlwasser strömt. Zur Kühlung der komprimierten Luft wird die Kanalführung durch den Zylinderkopf bzw. durch die einzelnen Bauteile des Zylinderkopfs derart gewählt, dass der Kanal möglichst lang ist und möglichst nah an dem Kühlmittelkanal vorbeiführt. Durch die kompakte Bauweise des Zylinderkopfes lässt es sich allerdings nicht vermeiden, dass ein Wärmeaustausch zwischen den Luftströmen, die durch den Zylinderkopf geführt werden und unterschiedliche Temperaturen aufweisen, stattfindet.Such a cylinder head is, for example, from DE 10 2015 225 069 A1 known and consists of several components that are arranged in layers on top of each other. The components form different channels or chambers through which air or a cooling medium, in particular cooling water, flows. To cool the compressed air, the duct routing through the cylinder head or through the individual components of the cylinder head is selected in such a way that the duct is as long as possible and runs as close as possible to the coolant duct. Due to the compact design of the cylinder head, however, it cannot be avoided that heat exchange takes place between the air flows that are guided through the cylinder head and have different temperatures.

Die Wärmeübertragung zwischen den Luftströmen mit unterschiedlichen Temperaturen erfolgt dabei über die Trennwände der Kanäle. Durch die metallische Ausführung dieser Trennwände ist die Wärmeleitfähigkeit sehr gut. Nachteilig ist, dass diese Wärmeübertragung den Wirkungsgrad des Hubkolbenverdichters negativ beeinflusst. Aus der DE 10 2013 019 812 A1 ist ein Luftverdichter bekannt, der einen Zylinderkopf mit mindestens einem Ansaugkanal und eine Druckkanal aufweist. Der Ansaugkanal ist gegenüber einem Kompressionsraum mittels einer Sauglamelle druckdicht verschließbar. Ansaugkanal ist abschnittsweise von einer sauglamellennahen, im Wesentlichen konzentrischen Ringnut umgeben, durch die der Endabschntt des Ansaugkanals gegenüber dem Zylinderkopf thermisch Isoliert ist.The heat transfer between the air flows with different temperatures takes place via the partition walls of the channels. Due to the metallic design of these partitions, the thermal conductivity is very good. The disadvantage is that this heat transfer negatively affects the efficiency of the reciprocating compressor. From the DE 10 2013 019 812 A1 an air compressor is known which has a cylinder head with at least one intake port and one pressure port. The intake channel can be closed in a pressure-tight manner in relation to a compression space by means of a suction plate. Sections of the intake port are surrounded by a substantially concentric annular groove near the intake fins, which thermally insulates the end section of the intake port from the cylinder head.

Die JP H11218079 offenbart einen Zylinderkopf mit zwischen den Kanälen für das zu komprimierende Fluid liegenden Kühlwasserkanälen.The JP H11218079 discloses a cylinder head with cooling water channels located between the channels for the fluid to be compressed.

Die Aufgabe der Erfindung ist es, den Zylinderkopfaufbau derart zu verbessern, dass die Effizienz des Hubkolbenverdichters vergrößert wird.The object of the invention is to improve the cylinder head structure in such a way that the efficiency of the reciprocating compressor is increased.

Die Aufgabe wird erfindungsgemäß durch eine Zylinderkopfausführung gelöst, die derart aufgebaut ist, dass eine unerwünschte Wärmeübertragung zwischen zwei Fluidströmungen minimiert wird. Weitere vorteilhafte Merkmale der erfindungsgemäßen Ausführung finden sich in den Unteransprüchen.The object is achieved according to the invention by a cylinder head design which is constructed in such a way that an undesirable heat transfer between two fluid flows is minimized. Further advantageous features of the embodiment according to the invention can be found in the dependent claims.

Es wird ein Zylinderkopf für einen Hubkolbenverdichter zum Verdichten eines kompressiblen Arbeitsmediums, umfassend ein Zylinderdeckel und eine Ventilträgerplatte, vorgeschlagen, der wie folgt aufgebaut ist und folgende Merkmale aufweist. Zwischen Zylinderdeckel und Ventilträgerplatte ist ein Zwischenelement angeordnet und zwischen Ventilträgerplatte und Zwischenelement sowie zwischen Zylinderdeckel und Zwischenelement sind mehrere Kanalabschnitte und/oder Kammern angeordnet bzw. werden durch diese gebildet, durch die unterschiedliche Medienströme leitbar sind. Zur Verbesserung der Effizienz des Hubkolbenverdichters sind im Zylinderkopf eine oder mehr Isolierkammer vorgesehen, die die Kanalabschnitte und/oder Kammern zumindest bereichsweise thermisch voneinander isolieren.A cylinder head for a reciprocating compressor for compressing a compressible working medium is proposed, comprising a cylinder cover and a valve carrier plate, which is constructed as follows and has the following features. An intermediate element is arranged between the cylinder cover and the valve carrier plate, and several channel sections and/or chambers are arranged or formed between the valve carrier plate and the intermediate element and between the cylinder cover and the intermediate element, through which different media flows can be conducted. To improve the efficiency of the reciprocating compressor, one or more insulating chambers are provided in the cylinder head, which thermally insulate the channel sections and/or chambers from one another at least in certain areas.

In einer bevorzugten Ausführung, zum Beispiel bei einem einstufigen Hubkolbenverdichter, sind ein Einlassraum und ein Auslassraum vorgesehen, zwischen denen die Isolierkammer angeordnet ist. Bei Mehrkolbenverdichtern oder auch mehrstufigen Verdichtern, können auch weitere Isolierkammern zwischen unterschiedlichen Temperaturbereichen angeordnet sein.In a preferred embodiment, for example in a single-stage reciprocating compressor, an inlet space and an outlet space are provided, between which the insulating chamber is arranged. In the case of multi-piston compressors or also multi-stage compressors, further insulating chambers can also be arranged between different temperature ranges.

Weiterhin kann im Zylinderkopf ein Auslasskanal vorgesehen sein, wobei der Isolierkanal den Einlassraum und den Auslassraum zumindest bereichsweise gegenüber dem Auslasskanal thermisch isoliert.Furthermore, an outlet channel can be provided in the cylinder head, with the insulating channel thermally isolating the inlet chamber and the outlet chamber at least in regions from the outlet channel.

Die Isolierkammern können im Wesentlichen durch Vertiefungen in der Ventilträgerplatte und/oder im Zylinderdeckel gebildet werden. Dabei werden die Vertiefungen dann mittels des Zwischenelements verschlossen.The insulating chambers can essentially be formed by indentations in the valve carrier plate and/or in the cylinder cover. The depressions are then closed by means of the intermediate element.

Vorzugweise enthalten die Isolierkammern eingeschlossene Umgebungsluft. Bei der Montage braucht somit kein zusätzlicher Arbeitsschritt eingeplant werden. Alternativ können die Isolierkammern aber auch mit einem Isoliermaterial gefüllt sein oder Vakuum enthalten.Preferably, the isolation chambers contain trapped ambient air. This means that no additional work step needs to be scheduled during assembly. Alternatively, the insulating chambers can also be filled with an insulating material or contain a vacuum.

Weiterhin kann vorgesehen sein, dass das Zwischenelement Verbindungsöffnungen aufweist, die Kanalabschnitte und/oder Kammern in der Ventilträgerplatte und im Zylinderdeckel miteinander verbinden. So können der Luftstrom und/oder der Kühlmediumstrom von einer Ebene in eine andere gelangen. Das Zwischenelement kann auch ein Dichtelement sein.Provision can furthermore be made for the intermediate element to have connection openings which connect channel sections and/or chambers in the valve carrier plate and in the cylinder cover to one another. In this way, the air flow and/or the cooling medium flow can move from one level to another. The intermediate element can also be a sealing element.

In einer Ausführung kann der Zylinderkopf ein Zylinderkopf für einen mehrstufigen Hubkolbenverdichter sein, wobei zwischen den Auslasskammern der Verdichterstufen die Einlasskammern der Verdichterstufen angeordnet sind.In one embodiment, the cylinder head can be a cylinder head for a multi-stage reciprocating compressor, the inlet chambers of the compressor stages being arranged between the outlet chambers of the compressor stages.

Weiterhin kann zwischen der Auslasskammer und der Einlasskammer der zweiten Verdichterstufe und/oder zwischen der Einlasskammer der zweiten Verdichterstufe und der Einlasskammer der ersten Verdichterstufe eine Isolierkammer angeordnet sein.Furthermore, between the outlet chamber and the inlet chamber of the second compressor stage and/or between the inlet chamber of the second compressor stage and an isolation chamber may be arranged in the inlet chamber of the first compressor stage.

Anhand von Ausführungsbeispielen werden weitere vorteilhafte Ausprägungen der Erfindung erläutert unter Bezugnahme auf die Zeichnungen. Die genannten Merkmale können nicht nur in der dargestellten Kombination vorteilhaft umgesetzt werden, sondern auch einzeln untereinander kombiniert werden. Die Figuren zeigen im Einzelnen:

Fig.1
Hubkolbenverdichter mit Zylinderkopf (Schnitt B-B)
Fig.2
Draufsicht auf den Zylinderkopf (Schnitt A-A)
Fig. 3
Alternativer Aufbau für einen Zylinderkopf
Further advantageous forms of the invention are explained on the basis of exemplary embodiments with reference to the drawings. The features mentioned can not only be advantageously implemented in the combination shown, but can also be combined individually with one another. The figures show in detail:
Fig.1
Reciprocating compressor with cylinder head (section BB)
Fig.2
Top view of the cylinder head (section AA)
3
Alternative construction for a cylinder head

Figur 1 zeigt einen zweistufigen Hubkolbenverdichter 1 bzw. Kompressor mit Zylinderkopf 2 im Schnitt. Der Schnittverlauf ist aus Figur 2 zu entnehmen. Der Zylinderkopf 2 setzt sich zusammen aus der Ventilträgerplatte 5, dem Zylinderkopfdeckel 7 und einem dazwischen angeordneten Zwischenelement 6. figure 1 shows a two-stage reciprocating compressor 1 or compressor with cylinder head 2 in section. The cutting course is off figure 2 refer to. The cylinder head 2 consists of the valve carrier plate 5, the cylinder head cover 7 and an intermediate element 6 arranged between them.

Figur 2 zeigt eine Draufsicht auf den Zylinderkopf 2, wobei der Schnittverlauf A-A aus Figur 1 zu entnehmen ist. figure 2 shows a plan view of the cylinder head 2, the section line AA from figure 1 can be seen.

Der Hubkolbenverdichter 1 weist eine Wasserkühlung auf, die durch das Zylindergehäuse 3 und durch den Zylinderkopf 2 verläuft. Nicht zu erkennen ist der genaue Verlauf der Kühlmittelkanäle 8.1 und 8.2, die miteinander verbunden sind, so dass ein Kühlmittelstrom durch beide Bereiche strömen kann.The reciprocating compressor 1 has a water cooling system that runs through the cylinder housing 3 and through the cylinder head 2 . The precise course of the coolant channels 8.1 and 8.2, which are connected to one another so that a coolant flow can flow through both areas, cannot be seen.

Wie aus den Figuren 1 und 2 weiterhin zu entnehmen ist, verlaufen zwischen Ventilträgerplatte 5 und Zwischenelement 6 sowie zwischen Zylinderdeckel 7 und Zwischenelement 6 mehrere Kanalabschnitte 8.1, 10 und mehrere Kammern 14.1, 14.2, 15.1 und 15.2 vorhanden. Weiterhin sind im Zylinderkopf 2 mehrere Isolierkammern 9.1, 9.2 angeordnet.How from the Figures 1 and 2 It can also be seen that several channel sections 8.1, 10 and several chambers 14.1, 14.2, 15.1 and 15.2 run between the valve carrier plate 5 and the intermediate element 6 and between the cylinder cover 7 and the intermediate element 6. Furthermore, several insulating chambers 9.1, 9.2 are arranged in the cylinder head 2.

Die Isolierkammern 9.1 und 9.2 sind in diesem Ausführungsbeispiel derart angeordnet, dass insbesondere der Kanalabschnitt 10, durch den die heiße Druckluft der zweiten Verdichterstufe 18 zur Auslassöffnung 20 geleitet wird, von den Kammern 14.1, 14.2, 15.1 und 15.2 isoliert wird. Auf diese Weise wird verhindert, dass es zu einer unerwünschten Erwärmung der Ansaugluft, insbesondere der kühlen Umgebungsluft, und der vorkomprimierten Luft, die von der ersten Verdichterstufe 17 zur zweiten Verdichterstufe 18 geleitet wird, kommt.In this exemplary embodiment, the insulating chambers 9.1 and 9.2 are arranged such that in particular the duct section 10, through which the hot compressed air of the second compressor stage 18 is conducted to the outlet opening 20, is isolated from the chambers 14.1, 14.2, 15.1 and 15.2. This prevents the intake air, in particular the cool ambient air, and the pre-compressed air, which is routed from the first compressor stage 17 to the second compressor stage 18 , from being undesirably heated.

Der Verlauf der Isolierkammern ist aus Figur 2 zu entnehmen, wobei zu erkennen ist, dass mittels der Isolierkammern nicht unbedingt eine vollständige Abschottung zwischen heißen und kalten Luftströmen erreicht wird. Durch die teilweise Isolierung wird die direkte Wärmeübertragung durch die metallischen Zwischenwände aber zumindest stark reduziert.The course of the isolation chambers is off figure 2 can be seen, whereby it can be seen that the insulating chambers do not necessarily achieve complete isolation between hot and cold air flows. Due to the partial insulation, the direct heat transfer through the metallic partitions is at least greatly reduced.

Wie zu erkennen, sind die Isolierkammern 9.1 und 9.2 abgeschlossene Hohlräume, die im Wesentlichen durch Vertiefungen in der Ventilträgerplatte 5 und im Zylinderdeckel 7 gebildet werden und durch das Zwischenelement 6 verschlossen sind. Die Isolierkammern 9.1 und 9.2 sind mit Umgebungsluft gefüllt, die bei der Montage eingeschlossen wurde.As can be seen, the insulating chambers 9.1 and 9.2 are closed cavities which are essentially formed by depressions in the valve carrier plate 5 and in the cylinder cover 7 and are closed by the intermediate element 6. The insulating chambers 9.1 and 9.2 are filled with ambient air that was trapped during assembly.

Bei zweistufigen Hubkolbenverdichtern 1 ist es wesentlich, dass die vorkomprimierte Luft aus der ersten Verdichterstufe 17 möglichst weit abgekühlt wird, bevor sie in die zweite Verdichterstufe 18 über den Einlassraum 14.2 eingesaugt wird. Um dies zu erreichen, wird der Luftstrom von dem Auslassraum 15.1 der ersten Verdichterstufe 17 durch einen Verbindungskanal 19 im Zylindergehäuse 3 geleitet. Die Wände des Verbindungskanals 19 stehen einmal mit dem Kühlkanal 8.2 in Kontakt und weisen zudem eine große Kühlfläche gegenüber der Umgebungsluft auf.In the case of two-stage reciprocating compressors 1, it is essential that the pre-compressed air from the first compressor stage 17 is cooled as far as possible before it is sucked into the second compressor stage 18 via the inlet chamber 14.2. In order to achieve this, the air flow from the outlet chamber 15.1 of the first compressor stage 17 is guided through a connecting duct 19 in the cylinder housing 3. The walls of the connecting channel 19 are in contact with the cooling channel 8.2 and also have a large cooling surface compared to the ambient air.

Figur 3 zeigt einen alternativen Aufbau für einen Zylinderkopf 1. Dieser unterscheidet sich im Wesentlichen durch die Anordnung der Kanäle und Kammern. So sind die Isolierkammern 9.3 hier zwischen dem Verbindungskanal 19 und dem Druckluftkanal 10 angeordnet. Die Isolierkammer 9.3 ist in die Ventilträgerplatte 5 eingearbeitet und wird durch das Dichtelement 4 verschlossen. figure 3 shows an alternative structure for a cylinder head 1. This differs essentially in the arrangement of the channels and chambers. The insulating chambers 9.3 are arranged here between the connecting channel 19 and the compressed air channel 10. The insulating chamber 9.3 is worked into the valve carrier plate 5 and is closed by the sealing element 4.

BezugszeichenlisteReference List

11
Kompressorcompressor
22
Zylinderkopfcylinder head
33
Zylindergehäusecylinder body
44
Dichtungselementsealing element
55
Ventilträgerplattevalve carrier plate
66
Zwischenelementintermediate element
77
Zylinderdeckelcylinder cover
88th
Kühlmittelkanalcoolant channel
9.1... 9.39.1... 9.3
Isolierkammerisolation chamber
1010
Druckluftkanalcompressed air duct
1111
Ansaugluftkanal zweite StufeIntake air duct second stage
1212
Auslassventiloutlet valve
1313
Einlassventilintake valve
14.1, 14.214.1, 14.2
Einlassrauminlet room
15.1, 15.215.1, 15.2
Auslassraumoutlet space
1616
Hubkolbenraumreciprocating space
1717
erste Verdichterstufefirst compressor stage
1818
zweite Verdichterstufesecond compressor stage
1919
Verbindungskanalconnecting channel
2020
Auslassöffnungexhaust port

Claims (10)

  1. Cylinder head (2) for a reciprocating compressor for compressing a compressible working medium, comprising a cylinder cover (7) and a valve carrier plate (5), wherein
    - an intermediate element (6) is arranged between the cylinder cover (7) and the valve carrier plate (5) ;
    - a plurality of channel sections (8.1, 10) and/or chambers (14.1, 14.2, 15.1, 15.2) are formed between the valve carrier plate (5) and the intermediate element (6) and between the cylinder cover (7) and the intermediate element (6), through which various media flows can be conducted,
    characterized in that
    an insulation chamber (9.1... 9.3), which is configured as a sealed cavity, is provided in the cylinder head (2), which chamber at least in regions thermally insulates the channel sections (8.1, 10) and/or chambers (14.1, 14.2, 15.1, 15.2) from one another.
  2. Cylinder head according to Claim 1,
    characterized in that
    an inlet chamber (14.1, 14.2) and an outlet chamber (15.1, 15.2) are provided, the insulation chamber (9.1) being arranged therebetween.
  3. Cylinder head according to Claim 1,
    characterized in that
    an outlet channel (10) is provided, wherein the insulation chamber (9.1) at least in regions thermally insulates the inlet chamber (14.1, 14.2) and the outlet chamber (15.1, 15.2) relative to the outlet channel (10).
  4. Cylinder head according to Claim 1,
    characterized in that
    the insulation chambers (9.1... 9.3) are substantially formed by recesses in the valve carrier plate (5) and/or in the cylinder cover (7).
  5. Cylinder head according to Claim 1,
    characterized in that
    the insulation chamber (8.1, 8.2, 8.3) contains enclosed ambient air.
  6. Cylinder head according to Claim 1,
    characterized in that
    the insulation chamber (8.1, 8.2, 8.3) is filled with an insulating material or contains a vacuum.
  7. Cylinder head according to Claim 1,
    characterized in that
    the intermediate element (6) has connection openings which connect together channel sections (8.1, 10) and/or chambers (14.1, 14.2, 15.1, 15.2) in the valve carrier plate (5) and in the cylinder cover (7) .
  8. Cylinder head according to Claim 1,
    characterized in that
    the intermediate element(6) is a sealing element.
  9. Cylinder head according to Claim 2,
    characterized in that
    the cylinder head (2) is a cylinder head (1) for a multi-stage reciprocating compressor, wherein the inlet chambers (14.1, 14.2) of the compressor stages (17, 18) are arranged between the outlet chambers (15.1, 15.2) of the compressor stages (17, 18).
  10. Cylinder head according to Claim 9,
    characterized in that
    an insulation chamber (9.1) is arranged between the outlet chamber (15.2) and the inlet chamber (14.2) of the second compressor stage (18) and/or between the inlet chamber (14.2) of the second compressor stage (18) and the inlet chamber (14.1) of the first compressor stage (17).
EP19744669.3A 2018-08-17 2019-07-23 Cylinder head for compressor Active EP3837440B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018120027.7A DE102018120027A1 (en) 2018-08-17 2018-08-17 Cylinder head for a compressor
PCT/EP2019/069726 WO2020035265A1 (en) 2018-08-17 2019-07-23 Cylinder head for a compressor

Publications (2)

Publication Number Publication Date
EP3837440A1 EP3837440A1 (en) 2021-06-23
EP3837440B1 true EP3837440B1 (en) 2023-09-06

Family

ID=67439208

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Application Number Title Priority Date Filing Date
EP19744669.3A Active EP3837440B1 (en) 2018-08-17 2019-07-23 Cylinder head for compressor

Country Status (5)

Country Link
US (1) US20210180582A1 (en)
EP (1) EP3837440B1 (en)
CN (1) CN112567134B (en)
DE (1) DE102018120027A1 (en)
WO (1) WO2020035265A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110043450A (en) * 2019-05-20 2019-07-23 浙江万安其弗汽车零部件有限公司 Air compression plant and air compressor
CN115263723B (en) * 2022-08-25 2024-01-30 瑞立集团瑞安汽车零部件有限公司 Cylinder body, air compressor and commercial vehicle

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE102013019812A1 (en) * 2013-11-26 2015-05-28 Wabco Gmbh Cylinder head for an air compressor

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US2315011A (en) * 1940-11-12 1943-03-30 Quiroz Francisco Angel Internal combustion engine
US2443502A (en) * 1941-02-08 1948-06-15 Constantine N Guerasimoff Engine construction
JPH11218079A (en) * 1998-01-30 1999-08-10 Sanwa Seiki Co Ltd Air compressor
JP4049344B2 (en) * 1998-12-17 2008-02-20 ヤマハマリン株式会社 In-cylinder fuel injection engine
CN102536746A (en) * 2010-12-22 2012-07-04 苏州鸿本机械制造有限公司 Cylinder cover for air-cooled reciprocating piston air compressor
US10125756B2 (en) * 2014-12-22 2018-11-13 Bendix Commercial Vehicle Systems Llc System and method for reducing at least one of airflow turbulence and pressure fluctuation proximate a valve
DE102015225069B4 (en) * 2015-12-14 2017-11-30 Voith Patent Gmbh Cylinder head for multi-stage reciprocating compressor
US10174755B2 (en) * 2016-05-06 2019-01-08 Bendix Commercial Vehicle Systems Llc Compressor head assembly with discharge valve

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DE102013019812A1 (en) * 2013-11-26 2015-05-28 Wabco Gmbh Cylinder head for an air compressor

Also Published As

Publication number Publication date
US20210180582A1 (en) 2021-06-17
CN112567134B (en) 2023-03-03
WO2020035265A1 (en) 2020-02-20
EP3837440A1 (en) 2021-06-23
DE102018120027A1 (en) 2020-02-20
CN112567134A (en) 2021-03-26

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