EP1831568B1 - Piston/cylinder assembly, particularly for a swash-plate compressor - Google Patents
Piston/cylinder assembly, particularly for a swash-plate compressor Download PDFInfo
- Publication number
- EP1831568B1 EP1831568B1 EP05819526A EP05819526A EP1831568B1 EP 1831568 B1 EP1831568 B1 EP 1831568B1 EP 05819526 A EP05819526 A EP 05819526A EP 05819526 A EP05819526 A EP 05819526A EP 1831568 B1 EP1831568 B1 EP 1831568B1
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- EP
- European Patent Office
- Prior art keywords
- cylinder
- piston
- lining
- housing
- arrangement according
- 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.)
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- 239000002826 coolant Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1045—Cylinders
-
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/064—Cooling by a cooling jacket in the pump casing
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
Definitions
- the invention relates to a piston-cylinder arrangement of a compressor, in particular a swash plate compressor, with a housing forming the cylinder; in which a piston is housed to generate compressed air.
- a so-called swash plate compressor which has a plurality of piston-cylinder assemblies, which serve to generate compressed air.
- the cylinders are arranged directly in the housing, ie formed by the housing wall.
- the housing is usually made as a casting, which is machined.
- the sealing rings of the piston come directly to the inner wall of the cylinder formed by the housing to the plant and cause in the reciprocating motion due to the sliding friction occurring here a significant heat development. So far, the resulting heat was dissipated by radiation on the outside of the housing to the environment.
- a piston-cylinder arrangement with the features according to the preamble of claim 1 is known from EP 0 994 252 A2 known.
- the compressor For lubricating the swash plate compressor oils are used, which come in accordance with the said prior art from the oil circuit of the drive motor of such a unit to which such a compressor is placed.
- the compressor is arranged in a vehicle and is intended to generate pressure medium for fluid-operated units in the vehicle. So in this case the oil circuit of the vehicle engine is tapped.
- the invention is therefore based on the object that the cylinder wall temperature is reduced while increasing the compressor capacity to a tolerable material level.
- the core of the invention here is that in the cylinder formed by the housing, a separate, cooled cylinder liner is used, which is preferably provided with at least three longitudinal ribs for spacing relative to the surrounding cylinder wall and to prevent rotation.
- the longitudinal ribs may alternatively be arranged on the part of the housing. Three longitudinal ribs are sufficient to achieve an immovable distance. Due to the distance thus formed, i. the resulting chambers, coolant can flow.
- each longitudinal rib engages in a corresponding partially complementary groove of the cylinder wall or vice versa, so that due to an at least partially positive engagement, the inner cylinder liner against the cylinder wall of the housing is additionally secured against rotation.
- the outer diameter of the cylinder liner respectively the longitudinal ribs, and the groove in the cylinder wall or the cylinder liner, and the cylinder inner wall diameters are coordinated so that arise between the cylinder liner and cylinder walls chambers.
- the chambers should be connected to each other in such a way that they can be flowed through efficiently with a coolant.
- the chambers are arranged fluidically in series.
- all Chambers are fluidically connected in parallel to each other. With high coolant flow rate, a particularly good cooling effect can be achieved hereby.
- the cylinder liner is provided at both end faces with sealing rings for sealing against adjacent components.
- sealing rings for sealing against adjacent components.
- annular grooves are arranged in the end faces of the cylinder liner, in which the sealing rings can be inserted standing on, in order to achieve a reliable sealing effect at accurate position assurance.
- a plurality of thus formed piston-cylinder assemblies are now arranged in parallel and their pressure chambers, as well as their coolant spaces fluidly connected to each other. This results, on the one hand, in the fact that a relatively large overall pressure medium delivery rate can be achieved and, on the other hand, that a closed cooling circuit can be formed for the entire compressor unit.
- the cylinder liner is made of an extruded profile with integrated longitudinal ribs.
- FIG. 1 shows a piston-cylinder assembly 1 in the exemplary embodiment of a swash plate compressor in a partial view.
- the piston 5 are arranged with the piston rod 7.
- the bush 8 according to the invention is arranged within the housing 2.
- the piston 5 is dimensioned so that it runs over the piston sealing rings 9 tight inside the cylinder liner. The friction arises between the piston sealing rings 9 and the cylinder liner 8 according to the invention.
- the cylinder liner 8 does not extend material-filling in the remaining interior of the otherwise used in the prior art cylinder chamber, but reduces the original cylinder space to the inner diameter of the cylinder liner eighth
- the cylinder liner 8 furthermore has longitudinal ribs 6 integrally formed on the outer circumference and holding the same in a chamber-forming distance from the inner wall of the housing 2 or the original cylinder inner wall.
- the chambers shown even more clearly in the following figure are additionally sealed at the end faces of the cylinder liner 8 with respect to the rest of the interior, or with respect to the actual cylinder space thus formed, in which the piston 5 is guided.
- the end faces of the cylinder liner 8 are provided with sealing rings which are inserted in there introduced annular grooves.
- the chambers 11 ... formed by the longitudinal ribs are flowed through by a coolant.
- a coolant As a result, the heat can be dissipated directly in the region of the resulting friction.
- this area is prevented from overheating. It prevents the formation of carbon deposits.
- the piston rod 7 engages - as in the prior art - in the storage with a swash plate, which is connected to a drive, and converts the rotational movement of a drive shaft in strokes of the piston.
- a plurality of piston-cylinder assemblies 1 are coupled via the respective piston rods to the swash plate.
- FIG. 2 shows a cross section through the piston-cylinder assembly 1 according to the invention in the range of the cylinder liner 8 according to the invention.
- the cylinder liner 8 is placed within the original cylinder space so that the molded on the outside of the cylinder liner 8 longitudinal ribs 6 rest against the inner wall of the original cylinder chamber.
- complementary molded grooves 30 are provided within the wall, in which the longitudinal ribs 6 of the cylinder liner 8 eino form fit, i. be inserted during assembly.
- the form fit is dimensioned so that the longitudinal ribs 6 eino only partially with respect to the depth, so that a solid rotationally secure position is achieved. Nevertheless, the rest of the cross section of the longitudinal ribs 6 to hold the cylinder liner 8 according to the invention to the original cylinder inner wall in a defined wall distance, so that between chambers 11, 12, 13 and 14 can form.
- the four longitudinal ribs 6 result in this case four divided chambers 11, 12, 13 and 14. These chambers 11, 12, 13 and 14 are, as in FIG. 1 was visible, sealed at the end faces of the cylinder liner 8 with sealing rings. On the one hand against each other and on the other hand also with respect to the interior in the housing 2 and the new cylinder space formed by the cylinder liner 8.
- channels may be provided which connect the chambers 11, 12, 13, 14 serially or in parallel with a coolant circuit.
- a plurality of piston-cylinder assemblies are mechanically coupled to a swash plate.
- the chambers thus created as a whole can be connected in series or in parallel through a coolant circuit.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Die Erfindung betrifft eine Kolben-Zylinder-Anordnung eines Verdichters, insbesondere eines Taumelscheibenverdichters, mit einem den Zylinder bildenden Gehäuse; in welchem ein Kolben zur Erzeugung von Druckluft untergebracht ist.The invention relates to a piston-cylinder arrangement of a compressor, in particular a swash plate compressor, with a housing forming the cylinder; in which a piston is housed to generate compressed air.
Aus der
Eine Kolben-Zylinder-Anordnung mit den Merkmalen gemäß Oberbegriff von Anspruch 1 ist aus der
Zur Schmierung des Taumelscheibenverdichters werden Öle verwendet, die gemäß des besagten Standes der Technik aus dem Ölkreislauf des Antriebsmotors eines solchen Aggregates kommen an dem ein solcher Verdichter platziert ist. In diesem Beispiel ist der Verdichter in einem Fahrzeug angeordnet und soll Druckmittel für druckmittelbetriebene Aggregate im Fahrzeug erzeugen. So wird in diesem Fall der Ölkreislauf des Fahrzeugmotors angezapft.For lubricating the swash plate compressor oils are used, which come in accordance with the said prior art from the oil circuit of the drive motor of such a unit to which such a compressor is placed. In this example, the compressor is arranged in a vehicle and is intended to generate pressure medium for fluid-operated units in the vehicle. So in this case the oil circuit of the vehicle engine is tapped.
Wenn nun die Kolben-Zylinder-Anordnung durch Dauerbetrieb sehr heiß wird, dann wird innerhalb des Verdichters Ölkohle gebildet, die sich ablagert. In der beschriebenen Anordnung versucht man dieses Problem dadurch zu lösen, dass man möglichst wenig Öl von den Antriebsvorräumen in den Zylinderraum gelangen lässt. Eine saubere und bedarfsgerechte Schmierung ist aber unverzichtbar.Now, if the piston-cylinder assembly is very hot by continuous operation, then oil is formed within the compressor, which deposits. In the described arrangement, attempts are made to solve this problem by allowing as little oil as possible to reach the cylinder chamber from the drive antechambers. However, a clean and needs-based lubrication is indispensable.
Problematisch ist aber auch noch, dass bei Taumelscheibenverdichtern neuerer Bauart höhere Verdichterdrücke erzielt werden sollen, so dass die thermische Belastung aufgrund verstärkter Reibung und höherer Kolbenfrequenz steigt. Die bereits in der
Der Erfindung liegt daher die Aufgabe zugrunde, dass die Zylinderwandtemperatur bei gleichzeitiger Erhöhung der Verdichterleistung auf ein materialtechnisch erträgliches Maß reduziert wird.The invention is therefore based on the object that the cylinder wall temperature is reduced while increasing the compressor capacity to a tolerable material level.
Die gestellte Aufgabe wird bei einer Kolben-Zylinder-Anordnung der gattungsgemäßen Art erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Weitere vorteilhafte Ausgestaltungsvarianten sind in den nachfolgenden, abhängigen Ansprüchen angegeben.The stated object is achieved according to the invention in a piston-cylinder arrangement of the generic type by the characterizing features of
Der Kern der Erfindung ist hierbei, dass in dem durch das Gehäuse gebildeten Zylinder eine separate, gekühlte Zylinderlaufbuchse eingesetzt ist, welche vorzugsweise mit mindestens drei Längsrippen zur Abstandhaltung gegenüber der umgebenden Zylinderwandung und zur Verdrehsicherung versehen ist. Natürlich können die Längsrippen alternativ auch seitens des Gehäuses angeordnet sein. Drei Längsrippen reichen dabei völlig aus, um eine unverrückbare Abstandhaltung zu erzielen. Durch den so gebildeten Abstand, d.h. die hieraus entstehenden Kammern, kann Kühlmittel strömen.The core of the invention here is that in the cylinder formed by the housing, a separate, cooled cylinder liner is used, which is preferably provided with at least three longitudinal ribs for spacing relative to the surrounding cylinder wall and to prevent rotation. Of course, the longitudinal ribs may alternatively be arranged on the part of the housing. Three longitudinal ribs are sufficient to achieve an immovable distance. Due to the distance thus formed, i. the resulting chambers, coolant can flow.
Vorzugsweise greift jede Längsrippe in eine korrespondierende teilkomplementär ausgebildete Nut der Zylinderwandung oder umgekehrt ein, so dass aufgrund eines zumindest teilformschlüssigen Eingriffes die innere Zylinderlaufbuchse gegenüber der Zylinderwandung des Gehäuses zusätzlich verdrehgesichert ist.Preferably, each longitudinal rib engages in a corresponding partially complementary groove of the cylinder wall or vice versa, so that due to an at least partially positive engagement, the inner cylinder liner against the cylinder wall of the housing is additionally secured against rotation.
Weiterhin ist vorteilhaft ausgestaltet, dass der Außendurchmesser der Zylinderlaufbuchse respektive der Längsrippen, sowie die Nute in der Zylinderwandung bzw. der Zylinderlaufbuchse, sowie die Zylinderwandungsinnendurchmesser so aufeinander abgestimmt sind, dass sich zwischen Zylinderbuchse und Zylinderwandung Kammern ergeben. Die Kammern sollten untereinander derart verbunden sein, dass diese effizient mit einem Kühlmittel durchströmbar sind.Furthermore, it is advantageously designed so that the outer diameter of the cylinder liner respectively the longitudinal ribs, and the groove in the cylinder wall or the cylinder liner, and the cylinder inner wall diameters are coordinated so that arise between the cylinder liner and cylinder walls chambers. The chambers should be connected to each other in such a way that they can be flowed through efficiently with a coolant.
Vorzugsweise sind die Kammern dabei strömungstechnisch in Reihe angeordnet. Um eine besonders effiziente Kühlmittelführung zu ermöglichen, ist es jedoch auch denkbar, dass alle Kammern strömungstechnisch parallel zueinander geschaltet sind. Bei hohem Kühlmitteldurchsatz kann hierdurch eine besonders gute Kühlwirkung erzielt werden.Preferably, the chambers are arranged fluidically in series. In order to enable a particularly efficient coolant guide, it is also conceivable that all Chambers are fluidically connected in parallel to each other. With high coolant flow rate, a particularly good cooling effect can be achieved hereby.
Weiterhin ist vorgesehen, dass die Zylinderlaufbuchse an beiden Stirnflächen mit Dichtringen zur Abdichtung gegenüber angrenzenden Bauteilen versehen ist. Hierdurch wird eine einfache und unkomplizierte Abdichtung zwischen Verdichtungsraum und Kühlraum geschaffen. In das erzeugte Druckmittel können somit keine Kühlmittel geschleppt werden und umgekehrt. In entsprechender und vorteilhafter Ausgestaltung sind in den Stirnseiten der Zylinderlaufbuchse Ringrillen angeordnet, in welche die Dichtringe überstehend eingelegt werden können, um bei genauer Lagesicherung auch eine zuverlässige Dichtwirkung zu erzielen.Furthermore, it is provided that the cylinder liner is provided at both end faces with sealing rings for sealing against adjacent components. As a result, a simple and uncomplicated seal between the compression chamber and the refrigerator is created. In the generated pressure medium thus no coolant can be towed and vice versa. In a corresponding and advantageous embodiment , annular grooves are arranged in the end faces of the cylinder liner, in which the sealing rings can be inserted standing on, in order to achieve a reliable sealing effect at accurate position assurance.
In vorteilhafter Ausgestaltung sind nun eine Mehrzahl von so ausgebildeten Kolben-Zylinder-Anordnungen parallel angeordnet und deren Druckräume, sowie auch deren Kühlmittelräume strömungstechnisch miteinander verbunden. Hierdurch ergibt sich zum einen, dass eine relativ große gesamte Druckmittelförderleistung geschaffen werden kann und andererseits für die gesamte Verdichtereinheit ein geschlossener Kühlkreislauf gebildet werden kann.In an advantageous embodiment, a plurality of thus formed piston-cylinder assemblies are now arranged in parallel and their pressure chambers, as well as their coolant spaces fluidly connected to each other. This results, on the one hand, in the fact that a relatively large overall pressure medium delivery rate can be achieved and, on the other hand, that a closed cooling circuit can be formed for the entire compressor unit.
In weiterer vorteilhafter Ausgestaltung ist die Zylinderlaufbuchse aus einem Strangpressprofil mit integriert angeordneten Längsrippen hergestellt. Alternativ dazu ist es auch möglich, das Gehäuse und die Zylinderlaufbuchsen aus einem Stück zu gießen und nachfolgend spanend zu bearbeiten.In a further advantageous embodiment, the cylinder liner is made of an extruded profile with integrated longitudinal ribs. Alternatively, it is also possible to cast the housing and the cylinder liners from one piece and subsequently machined.
Insgesamt ergibt sich der Vorteil, dass die gestellte Aufgabe auf einfache aber wirkungsvolle Weise gelöst ist, und dass im Reparatur- oder Wartungsfall die erfindungsgemäße Zylinderlaufbuchse einfach austauschbar ist.Overall, there is the advantage that the task is solved in a simple but effective manner, and that in case of repair or maintenance, the cylinder liner according to the invention is easily replaceable.
Weitere die Erfindung verbessernde Maßnahmen sind in der Zeichnung dargestellt und nachfolgend näher beschrieben. Es zeigt:
Figur 1- Kolben-Zylinder-Anordnung im Ausgestaltungsbeispiel eines Taumelscheibenverdichters mit Zylinderlaufbuchse, und
Figur 2- Draufsicht auf Zylinder mit eingesetzter Zylinderlaufbuchse.
- FIG. 1
- Piston-cylinder arrangement in the embodiment of a swash plate compressor with cylinder liner, and
- FIG. 2
- Top view of cylinder with inserted cylinder liner.
Innerhalb des Gehäuses 2 sind der Kolben 5 mit der Kolbenstange 7 angeordnet. Innerhalb des im Gehäuse gebildeten Zylinderraumes ist die erfindungsgemäße Laufbuchse 8 angeordnet. Der Kolben 5 ist so bemessen, dass er über die Kolbendichtringe 9 dicht innerhalb der Zylinderlaufbuchse läuft. Die Reibung entsteht zwischen den Kolbendichtringen 9 und der erfindungsgemäßen Zylinderlaufbuchse 8.Within the
Die Zylinderlaufbuchse 8 erstreckt sich aber nicht werkstofffüllend in dem verbleibenden Innenraum des ansonsten im Stand der Technik genutzten Zylinderraumes, sondern verkleinert den ursprünglichen Zylinderraum auf den Innendurchmesser der Zylinderlaufbuchse 8.However, the
Die Zylinderlaufbuchse 8 weist desweiteren am Außenumfang angeformte Längsrippen 6 auf, die dieselbe in einem kammerbildenden Abstand zur Innenwandung des Gehäuses 2 bzw. der ursprünglichen Zylinderinnenwandung halten. Die in der nachfolgenden Figur noch deutlicher gezeigten Kammern werden zusätzlich an den Stirnseiten der Zylinderlaufbuchse 8 gegenüber dem übrigen Innenraum, bzw. gegenüber dem so gebildeten tatsächlichen Zylinderraum, in dem der Kolben 5 geführt wird, abgedichtet. Hierzu sind die Stirnseiten der Zylinderlaufbuchse 8 mit Dichtringen versehen, die in dort eingebrachten Ringrillen eingelegt sind.The
Die durch die Längsrippen gebildeten Kammern 11... werden von einem Kühlmittel durchströmt. Dadurch kann direkt im Bereich der entstehenden Reibung die Wärme abgeführt werden. Dadurch wird aufgabengemäß verhindert, dass sich dieser Bereich überhitzt. Es wird so der Bildung von ablagernder Ölkohle vorgebeugt.The
Die Kolbenstange 7 greift dabei - wie im Stand der Technik - in die Lagerung mit einer Taumelscheibe ein, die mit einem Antrieb verbunden ist, und die Drehbewegung einer Antriebswelle in Hubbewegungen des Kolbens umsetzt. Dabei sind eine Mehrzahl von Kolben-Zylinder-Anordnungen 1 über die jeweiligen Kolbenstangen an die Taumelscheibe gekoppelt.The
Am Auslassventil 4 wird dabei das so verdichtete Druckmittel ausgegeben.At the outlet valve 4 while the thus compressed pressure medium is output.
Die Zylinderlaufbuchse 8 ist innerhalb des ursprünglichen Zylinderraumes so platziert, dass die außen an der Zylinderlaufbuchse 8 angeformeten Längsrippen 6 an der Innenwandung des ursprünglichen Zylinderraumes anliegen. Um eine drehfeste und sichere Fixierung der Zylinderlaufbuchse 8 zu gewährleisten, sind innerhalb der Wandung komplementär eingeformte Rillen 30 vorgesehen, in denen die Längsrippen 6 der Zylinderlaufbuchse 8 formschlüssig einliegen, d.h. im Zuge der Montage eingeschoben werden. Der Formschluss ist dabei so bemessen, dass die Längsrippen 6 hinsichtlich der Tiefe nur teilweise einliegen, so dass eine feste verdrehsichere Lage erreicht wird. Dennoch soll der übrige Querschnitt der Längsrippen 6 die erfindungsgemäße Zylinderlaufbuchse 8 zur ursprünglichen Zylinderinnenwandung in einem definierten Wandungsabstand halten, so dass sich dazwischen Kammern 11, 12, 13 und 14 ausbilden können.The
Durch die vier Längsrippen 6 ergeben sich hierbei vier abgeteilte Kammern 11, 12, 13 und 14. Diese Kammern 11, 12, 13 und 14 sind, wie in
Diese so gebildeten Kammern 11, 12, 13, 14 werden dabei mit Kühlmittel durchströmt. Dabei können Kanäle vorgesehen sein, die die Kammern 11, 12, 13, 14 seriell oder parallel mit einem Kühlmittelkreislauf verbinden.These
Weiterhin werden bei einem Taumelscheibenverdichter mehrere Kolben-Zylinder-Anordnungen mechanisch an eine Taumelscheibe gekoppelt. Dabei können die so insgesamt entstehenden Kammern seriell oder parallel durchströmt mit einem Kühlmittelkreislauf verbunden sein.Furthermore, in a swash plate compressor, a plurality of piston-cylinder assemblies are mechanically coupled to a swash plate. In this case, the chambers thus created as a whole can be connected in series or in parallel through a coolant circuit.
Es ergeben sich bei einem Verdichter dieser Bauart erfindungsgemäß die oben beschriebenen Vorteile, und damit eine deutliche funktionelle Verbesserung gegenüber Taumelscheibenverdichtern herkömmlicher Bauart.In the case of a compressor of this type, the advantages described above result according to the invention, and thus a clear functional improvement over swash plate compressors of conventional design.
- 11
- Kolben-Zylinder-AnordnungPiston-cylinder arrangement
- 22
- Gehäusecasing
- 33
- Zylinderkopfcylinder head
- 44
- Auslassventiloutlet valve
- 55
- Kolbenpiston
- 66
- Längsrippelongitudinal rib
- 77
- Kolbenstangepiston rod
- 88th
- Laufbuchseliner
- 99
- KolbendichtringePiston rings
- 1010
- 1. Dichtung1st seal
- 1111
- 1. Kammer1st chamber
- 1212
- 2. Kammer2nd chamber
- 1313
- 3. Kammer3rd chamber
- 1414
- 4. Kammer4th chamber
- 2020
- 2. Dichtung2nd seal
- 3030
- Rillegroove
Claims (8)
- Piston-cylinder arrangement for a compressor, in particular a swash-plate compressor, with a housing (2) that forms the cylinder in which there is a piston (5) for the production of compressed air, and to improve the cooling a cooled cylinder lining (8) is arranged in the cylinder formed by the housing (2),
characterised in that the cylinder lining (8) or the housing (2) is provided with at least three longitudinal ribs (6) in order to maintain a uniform spacing relative to the surrounding housing (2) or the cylinder lining (8) and to prevent relative rotation of the said corresponding components, so that the separation between them forms chambers (11, 12, 13, 14) through which a coolant circulating in a cooling circuit can flow. - Piston-cylinder arrangement according to Claim 1,
characterised in that in the case of a separate cylinder lining (8) at least two of the longitudinal ribs (6) engage in a corresponding and at least partially complementary groove (30) formed in the cylinder wall, so that by virtue of a positive locking engagement the cylinder lining (8) is prevented from rotating relative to the cylinder wall of the housing (2). - Piston-cylinder arrangement according to Claim 2,
characterised in that the outer diameter of the cylinder lining (8) in relation to all the longitudinal ribs (6) and associated grooves (30) in the cylinder wall and the inside diameter of the cylinder wall as well, are matched to one another in such manner that the chambers (11, 12, 13, 14) are formed between the cylinder lining (8) and the cylinder wall of the housing (2). - Piston-cylinder arrangement according to Claim 1,
characterised in that the chambers (11, 12, 13, 14) are in flow connection with one another in a series or parallel arrangement. - Piston-cylinder arrangement according to Claim 4,
characterised in that
the cylinder lining (8) is provided at its two ends with sealing rings (9) in order to provide a seal between the chambers (11, 12, 13, 14) of the cylinder lining (8) through which the coolant flows, and adjacent components. - Piston-cylinder arrangement according to Claim 5,
characterised in that at the ends of the cylinder lining (8) lateral circular grooves with a partially profiled cross-section are made, in which the sealing rings (9) can be set so that they stand proud of the grooves. - Piston-cylinder arrangement according to any of the preceding claims,
characterised in that the cylinder lining (8) consists of an extruded section with integrally formed longitudinal ribs (6). - Piston-cylinder arrangement according to any of the preceding claims 1 to 6,
characterised in that the housing (2) and the cylinder lining (8) are cast as one piece and then machined.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004061224A DE102004061224B4 (en) | 2004-12-20 | 2004-12-20 | Piston-cylinder arrangement, in particular for a swash plate compressor |
PCT/EP2005/013603 WO2006066829A1 (en) | 2004-12-20 | 2005-12-16 | Piston/cylinder assembly, particularly for a swash-plate compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1831568A1 EP1831568A1 (en) | 2007-09-12 |
EP1831568B1 true EP1831568B1 (en) | 2008-04-16 |
Family
ID=35811535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05819526A Not-in-force EP1831568B1 (en) | 2004-12-20 | 2005-12-16 | Piston/cylinder assembly, particularly for a swash-plate compressor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1831568B1 (en) |
AT (1) | ATE392552T1 (en) |
DE (2) | DE102004061224B4 (en) |
WO (1) | WO2006066829A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008061897A1 (en) * | 2008-12-11 | 2010-06-17 | Pfeiffer Vacuum Gmbh | Vacuum pump |
DE102013100013B4 (en) * | 2013-01-02 | 2016-08-18 | Aircom Automotive Sp. z o.o. Sp. k. | Piston compression device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US706979A (en) * | 1901-08-15 | 1902-08-12 | Pedrick And Ayer Company | Compound air-compressor. |
US3458114A (en) * | 1967-03-13 | 1969-07-29 | Champion Pneumatic Machinery C | Compressor |
EP0730092B1 (en) * | 1995-03-03 | 1997-12-29 | Cryopump Ag | Pump for pumping a fluid including a liquified gas and device comprising such a pump |
DE19706066A1 (en) * | 1997-02-17 | 1997-11-20 | Hans Dipl Ing Unger | Compressor providing compressed air in vehicle |
DE19847159C2 (en) * | 1998-10-13 | 2001-12-06 | Hans Unger | Compressor for generating oil-free compressed air |
DE19909689B4 (en) * | 1999-03-05 | 2009-07-23 | Rohs, Ulrich, Dr.-Ing. | Piston engine with continuous combustion |
DE10109514C1 (en) * | 2001-02-28 | 2002-07-11 | Knorr Bremse Systeme | Dry-running piston compressor, for rail vehicles, has lubricating nipples for external lubrication of the big end and/or gudgeon pin bearings to give long intervals between overhauls |
DE10308430A1 (en) * | 2003-02-27 | 2004-09-09 | Unger, Hans, Dipl.-Ing. | Two cylinder axial piston compressor for producing oil-free compressed air in vehicles and for stationary operation comprises a swashplate mechanism producing linear movement of a piston rod |
-
2004
- 2004-12-20 DE DE102004061224A patent/DE102004061224B4/en not_active Expired - Fee Related
-
2005
- 2005-12-16 WO PCT/EP2005/013603 patent/WO2006066829A1/en active IP Right Grant
- 2005-12-16 DE DE502005003786T patent/DE502005003786D1/en active Active
- 2005-12-16 EP EP05819526A patent/EP1831568B1/en not_active Not-in-force
- 2005-12-16 AT AT05819526T patent/ATE392552T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE392552T1 (en) | 2008-05-15 |
DE102004061224B4 (en) | 2010-09-09 |
DE502005003786D1 (en) | 2008-05-29 |
EP1831568A1 (en) | 2007-09-12 |
WO2006066829A1 (en) | 2006-06-29 |
DE102004061224A1 (en) | 2006-06-29 |
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