EP3502473A1 - Compressor - Google Patents

Abstract

The invention relates to a compressor for compressing refrigerant circulating in a cooling circuit, the compressor having at least one receptacle (15,16,17,18) for spring elements (10,11,12,13) carrying a compressor-motor unit (4). having. This receptacle (15,16,17,18) protrudes with its casing element (20) over a sump height (14) of a lubricant sump (30) formed in the housing interior (1) in an operating state of the compressor in the vertical direction (23). Because lubricant (9) is constantly distributed throughout the inside of the housing (2) in the operating state - due to the movement of the moving parts of the compressor - lubricant (9) also collects within a receiving volume (32) of the receptacle (15, 16, 17, 18), where it forms a mirror which, viewed in the vertical direction, is well above the sump height (14) of the lubricant sump (30). As a result, damping of the spring elements (10, 11, 12, 13) is achieved by the lubricant (9) and thus without the need for additional agents.

Description

FIELD OF THE INVENTION

• ein ein Gehäuseinneres des Kompressors umschließendes Kompressorgehäuse,
• eine Verdichter-Motor-Einheit, welche zumindest einen sich in einem Zylinder bewegenden Kolben sowie einen Motor umfasst,
• zumindest ein Federelement, vorzugsweise mehrere Federelemente, über welches Federelement die Verdichter-Motor-Einheit elastisch lagernd an einem Lagerungsbereich des Kompressorgehäuses, vorzugsweise an einem Bodenbereich des Kompressorgehäuses, angebunden ist,
• zumindest eine an dem Lagerungsbereich angeordnete Aufnahme für das zumindest eine Federelement, vorzugsweise eine Aufnahme für jeweils ein Federelement, wobei das jeweilige Federelement in der Aufnahme aufgenommen ist, wobei
• die Aufnahme ein Bodenelement, welches mit dem Lagerungsbereich verbunden ist und von welchem das Federelement in eine Höhenrichtung absteht, ein Mantelelement, welches Mantelelement das Federelement hülsenförmig umgibt, sowie ein durch das Bodenelement und das Mantelelement begrenztes Aufnahmevolumen aufweist, um ein Ansammeln von Schmiermittel in dem Aufnahmevolumen zu ermöglichen, sodass ein in dem Aufnahmevolumen angeordneter Abschnitt des Federelementes im Betriebszustand des Kompressors von Schmiermittel umhüllt ist.

The present invention relates to a compressor for compressing refrigerant circulating in a refrigeration cycle, comprising

• a compressor housing enclosing a housing interior of the compressor,
• a compressor-motor unit comprising at least one piston moving in a cylinder and a motor,
• at least one spring element, preferably a plurality of spring elements, via which spring element the compressor-motor unit is elastically mounted on a storage area of the compressor housing, preferably at a bottom area of the compressor housing,
• at least one arranged on the storage area receptacle for the at least one spring element, preferably a receptacle for each one spring element, wherein the respective spring element is received in the receptacle, wherein
• the receptacle comprises a floor element, which is connected to the storage area and from which the spring element protrudes in a height direction, a jacket element, which jacket element surrounds the spring element in a sleeve shape, and has a limited by the bottom element and the jacket element receiving volume to accumulate lubricant in the To allow receiving volume, so that in the receiving volume arranged portion of the spring element is coated in the operating state of the compressor of lubricant.

STATE OF THE ART

In generic compressors according to the prior art, it is a well-known problem that caused by the compressor-motor unit vibrations mainly via spring elements, by means of which the compressor-motor unit is mounted on the housing interior of the compressor, to the compressor housing of the Compressor are transmitted. The higher the proportion of vibrations transmitted to the compressor housing without damping, the higher the noise emission of the compressor as a whole.

Further developments of known compressors with regard to a reduced noise emission are aimed, for example, at a damping of said vibration transmission in the area of the spring elements. The disadvantage here is that in this case often special damping elements are necessary, which are naturally exposed to high loads and thus wear out in the long term.

In this context, it has been observed that it is also possible to use means for damping the vibration transmission which are already present in the interior of the housing in the operating state of the compressor. In particular, it has been found that spring elements which are largely covered by a present during the operating condition of the compressor in the bottom region of the compressor housing lubricant sump, forward only a very small part of the vibrations caused by the compressor-motor unit to the compressor housing. The viscosity of the lubricant sump formed mainly of oil and refrigerant leads to a damping of the spring elements surrounded by lubricant.

In particular, however, the arrangement and position of the motor of the compressor-motor unit within the housing interior are factors which have a limiting effect on the height of the lubricant sump mirror. The desire to reduce the noise emission of the compressor by means of a higher lubricant sump level thus precludes the requirement, in particular not to immerse the rotor of the compressor-motor unit in the lubricant sump.

OBJECT OF THE INVENTION

It is therefore an object of the present invention to provide a compressor which enables improved damping of the spring elements and the associated vibration transmission to the compressor housing.

PRESENTATION OF THE INVENTION

• ein ein Gehäuseinneres des Kompressors umschließendes Kompressorgehäuse,
• eine Verdichter-Motor-Einheit, welche zumindest einen sich in einem Zylinder bewegenden Kolben sowie einen Motor umfasst,
• zumindest ein Federelement, vorzugsweise mehrere Federelemente, über welches Federelement die Verdichter-Motor-Einheit elastisch lagernd an einem Lagerungsbereich des Kompressorgehäuses, vorzugsweise an einem Bodenbereich des Kompressorgehäuses, angebunden ist, sowie
• zumindest eine an dem Lagerungsbereich angeordnete Aufnahme für das zumindest eine Federelement, vorzugsweise eine Aufnahme für jeweils ein Federelement, wobei das jeweilige Federelement in der Aufnahme aufgenommen ist, wobei die Aufnahme ein Bodenelement, welches mit dem Lagerungsbereich verbunden ist und von welchem das Federelement in Höhenrichtung absteht, ein Mantelelement, welches Mantelelement das Federelement hülsenförmig umgibt, sowie ein durch das Bodenelement und das Mantelelement begrenztes Aufnahmevolumen aufweist, um im Betrieb des Kompressors ein Ansammeln von Schmiermittel in dem Aufnahmevolumen zu ermöglichen, sodass ein in dem Aufnahmevolumen angeordneter Abschnitt des Federelementes von Schmiermittel umhüllt ist,

gelöst, indem das Mantelelement eine Sumpfhöhe eines Schmiermittelsumpfes, welcher Schmiermittelsumpf sich im Betrieb des Kompressors im Gehäuseinneren ausbildet, in Höhenrichtung überragt.This object is in a compressor according to the invention for compressing in a cooling circuit circulating refrigerant comprising

• a compressor housing enclosing a housing interior of the compressor,
• a compressor-motor unit comprising at least one piston moving in a cylinder and a motor,
• at least one spring element, preferably a plurality of spring elements, via which spring element, the compressor-motor unit elastically mounted on a storage area of the compressor housing, preferably at a bottom portion of the compressor housing, is connected, and
• at least one arranged on the storage area receptacle for the at least one spring element, preferably a receptacle for each spring element, wherein the respective spring element is received in the receptacle, wherein the receptacle is a bottom member which is connected to the storage area and of which the spring element in the height direction protrudes, a jacket member, which shell element surrounds the spring element sleeve-shaped, as well as a limited by the bottom member and the jacket member receiving volume to allow in the operation of the compressor, a buildup of lubricant in the receiving volume, so that arranged in the receiving volume portion of the spring element of lubricant is wrapped,

solved by the shell element a sump height of a lubricant sump, which lubricant sump is formed in the interior of the housing during operation of the compressor, projects in the vertical direction.

During operation of the compressor, in which the compressor is operated as intended for compressing refrigerant, the lubricant sump forms inside the housing, more precisely in the bottom area of the housing interior. Usually by means of a crankshaft, which is driven by the motor of the compressor-motor unit for the purpose of compression of refrigerant and partially projects into the lubricant sump, lubricant is conveyed in a conventional manner from the lubricant sump in the direction of the compressor-motor unit to Among other things about a crank pin of the crankshaft, a connecting rod, which produces an operative connection between the piston and crank pin, a bearing in which the crankshaft is mounted, and / or a cylinder wall of the To lubricate cylinder. As a result, the lubricant flows from the compressor-motor unit and is in turn fed to the lubricant sump.

By receiving the invention, which receives the respective associated spring element for the purpose of connection of the same to the compressor housing, in particular to the storage area of the compressor housing, in sections, it is possible to increase the level of the lubricant respectively in the region of the spring element, without the mirror of To increase lubricant sump overall. The existing during operation inside the housing lubricant can thus be used for damping the spring elements.

This is done in particular by the jacket element of the receptacle, which jacket element at least largely prevents any leakage of lubricant that has accumulated in the receiving volume of the receptacle from the receptacle into the lubricant sump. A drainage of lubricant from the receptacle is "largely prevented" in this sense, if the degree of tightness of the recording ensures that any outflow of lubricant from the receptacle, for example by porosities in the wall element is not greater than the steady inflow of lubricant in the in the direction of the compressor-motor unit open receptacle, which inflow is caused by the running in the operation of the compressor in the housing interior and drained from the compressor-motor unit lubricant. Thus, lubricant which drips from the compressor-motor unit of the compressor and accumulates in the receiving volume of the receptacle initially remains inside the receptacle and is prevented by the mantle element of the receptacle from leaving the receptacle volume in the direction of the lubricant sump , Since the recording dominates the sump height of the lubricant sump with its jacket element in the vertical direction, the mirror of the lubricant, in each case based on a common reference point, within the receiving volume of the receptacle, a significantly higher than in the lubricant sump.

This increased in the spring elements level of viscous lubricant (and oil) ensures that the initially described damping effect of the lubricant can be optimally used, since a much larger height portion of the spring elements can be placed under lubricant, as in known compressors in which the height the lubricant sump is limited by the factors also mentioned above, in particular by the arrangement of the compressor-motor unit. As a result, in the case of deflection, compression or expansion of the spring elements, optimal damping of the spring elements is achieved and the noise emission caused by the vibration transmission of the spring elements can be significantly reduced. In addition, any collisions between the receptacle and the compressor-motor unit, more precisely between the spring holder of the receptacle and another spring holder of the compressor-motor unit, which further spring holder of the attachment of the respective spring element to the compressor-motor unit is used and sections protrudes into the spring element, damped by a lying between these parts lubricant film.

By a radial spacing of all other spring coils of the jacket element of the recording except in the height direction considered first spring coils of the respective spring element, which first spring coils can be formed by the storage area nearest one, two or three spring coils of the spring element, it is ensured that the respective spring element at least In the area of its further spring coils it is surrounded on all sides by lubricant. As a result, the damping effect described above is further enhanced. In this case, both the first spring coils and the other spring coils of the spring element are in an operating state of the compressor in the receiving volume of the receptacle, wherein in this operating state, only the weight of the compressor motor unit acts on the at least one spring element. By radial spacing of the spring coils of the shell element is referred to that standing normal to the height direction distance, which extends between the spring coils, which are surrounded within the receptacle and thus of the shell element, and the shell element.

In a preferred embodiment of the compressor according to the invention, it is provided that a minimum clear inner diameter of the jacket element is greater than a maximum outer diameter of the spring element, so that all disposed within the receiving volume spring coils of the respective spring element are radially spaced from the shell element of the respective receptacle.

In this case, the spring element in the region of its entire, extending within the receptacle height portion may be surrounded by lubricant. In particular, it is provided in this embodiment of the compressor according to the invention that the first spring coils - and thus all disposed within the receptacle spring coils - of the respective spring element are spaced from the jacket element. The movement of the spring is thus not obstructed by the jacket element, at least in the case of smaller amplitudes. Collisions between the spring coils and the jacket member of the recording are largely avoided in compressors of this embodiment. In particular, in connection with recordings that are rigid, for example made of metal, can be achieved by a significant noise reduction.

In another preferred embodiment of the compressor according to the invention, it is provided that in said operating state of the compressor, in which operating state the at least one spring element is loaded only by the weight of the compressor-motor unit, at least the first three spring coils (21,22) , Preferably 50% of the spring coils, more preferably more than 70% of the spring coils of the spring element within the receiving volume (32) of the respective receptacle (15,16,17,18) are.

This ensures that the accumulating in the receiving volume lubricant can achieve a particularly favorable in relation to the height of the spring element for damping purposes mirror. In the preferred embodiment of the compressor, the lubricant level in the receiving volume is increased such that even in the case of complete compression of the spring element no spring coils of the spring element outside the recording - and thus outside of the lubricant - collide with each other. All occurring collisions between spring coils are thus damped by the lubricant present in the receptacle. This achieves an additional reduction of the noise emission.

In a preferred embodiment of the invention, it is provided that at least two of the lying within the receiving volume spring coils of the respective spring element are spaced apart, so that extends between them a spring travel.

As a result, the damping effect achieved by the lubricant can be used even more efficiently.

Particularly preferably, the spring element is arranged in the said operating state of the compressor at least up to and including a transition region between active and passive spring coils within the receiving volume. The non-spaced spring coils are considered passive and the spaced spring coils are considered active.

Since the damping effect caused by the lubricant present in the receiving volume in the operating state of the compressor is the strongest in this transition region, in such embodiments of the compressor according to the invention increased damping is achieved.

In another preferred embodiment of the compressor according to the invention, it is provided that the receptacle has a protruding in the height direction of the recording pin-like spring holder, via which spring holder, the spring element is connected with its inside under adhesion to the receptacle.

By the spring holder of the receptacle, which is usually designed as a fastening bolt with tapered diameter in the height direction, a particularly simple and reliable fastening of the spring element to the recording - and thus at the storage area - allows. In particular, when the spring element is designed as a helical spring, a particularly simple and reliable fixation of the spring element on the receptacle can be achieved by sliding the coil spring onto the spring holder, provided that the diameter of the spring holder is matched to an inner diameter of the helical spring. In this case, the spring holder may be made in one piece with a bottom element and the jacket element of the receptacle and be turned up with a hollow inner portion on a raised portion arranged in the bottom region of the compressor housing to secure the receptacle to the compressor housing. Alternatively, the receptacle may have a recess in its bottom element formed integrally with the jacket element, through which recess a pin-like part of the compressor housing projecting from the bottom region in the height direction passes into the recess Pickup protrudes into it. In such a case, the recess is matched to the protruding part of the compressor housing such that leakage of lubricant from the receptacle in that region in which the protruding part and the recess contact one another is not possible or largely prevented.

In another embodiment of the invention, the bottom element may be formed by the storage area of the compressor housing.

Particularly preferred is a further embodiment of the compressor according to the invention, in which embodiment, the jacket element projects beyond the spring holder of the receptacle in the height direction.

As a result, a maximization of the receiving volume of the receptacle for lubricant is achieved, so that the receiving volume can accommodate a plurality of spring coils.

In order to reduce that portion of the noise emission which is attributable to the collision between the deflected spring element and the jacket element of the receptacle, it is provided in a further preferred embodiment of the invention that the jacket element of the receptacle is designed to be elastic.

In this context, it is particularly advantageous if, as provided in a further preferred embodiment of the compressor according to the invention, at least the jacket element, but preferably the entire receptacle, is made of an elastomer, particularly preferably of a fluoroelastomer. This material leads to an increased life of the recording, which is exposed to permanently high temperatures and the lubricant itself during the operating condition of the compressor.

In a particularly preferred embodiment of the compressor according to the invention, it is provided that a clear inner diameter of the jacket element monotonically increases in the height direction, namely, the inside diameter increases in the sense of a monotonically increasing function of the height direction.

On the one hand, the receiving volume of the receptacle, in which lubricant can collect and contribute to the damping of the spring element, is further increased by this measure. On the other hand, this takes into account the fact that the amplitude of the deflection of the spring element increases with the height direction. It is thus ensured that the spring element does not contact the jacket element even with extreme deflections of the spring element, for example during the start / stop process of the compressor-motor unit of the compressor. This in turn is accompanied by the reduction of the portion of the noise emission, which is due to the collision between the deflected spring element and the, for example made of metal, jacket element of the receptacle.

It can be particularly advantageous if the jacket element surrounding the spring element and optionally the pin holder is curved strongly towards the outside at its end region facing away from the compressor housing. In order to achieve the volume increase of the receptacle associated with such a formed jacket element, it is provided in another preferred embodiment of the compressor according to the invention that the jacket element, viewed in a direction parallel to the height direction cross-section, at least partially has the shape of a circular arc, wherein one circle corresponding to this circular arc has its center outside the picture.

In a particularly preferred embodiment of the compressor according to the invention, it is provided that the jacket element has a first height portion and a second height portion, wherein the first height portion and the second height portion each extend in the height direction, wherein a first clear inner diameter of the jacket member in the region of the first height portion is constant and wherein the second height portion of the jacket element has a diameter extension.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail with reference to exemplary embodiments. The drawings are exemplary and are intended to illustrate the inventive idea, but in no way restrict it or even reproduce it.

Fig. 1

eine Schnittansicht eines erfindungsgemäßen Kompressors

Fig. 2

eine Detailansicht aus Fig. 1

Fig. 3

eine Ausführungsvariante einer erfindungsgemäßen Aufnahme samt Federelement

Fig. 4

eine Aufsicht auf den Gehäuseboden des Kompressors aus Fig. 1 mit vier Aufnahmen und zugeordneten Federelementen

Showing:

Fig. 1

a sectional view of a compressor according to the invention

Fig. 2

a detailed view Fig. 1

Fig. 3

a variant of a recording invention including spring element

Fig. 4

a top view of the bottom of the compressor Fig. 1 with four receptacles and associated spring elements

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows a refrigerant compressor in a sectional view, wherein the section through the compressor housing 1 of the compressor. In a housing interior 2 surrounded by the compressor housing 1, a compressor-motor unit 4 is arranged, which first comprises a motor 8 and a cylinder 5 for compressing refrigerant, wherein the refrigerant can flow into the housing interior 2 via an inlet in the compressor housing 1.

A crankshaft 7 driven by the engine 8 is operatively connected via a connecting rod to a piston 6 arranged in the cylinder 5, so that the rotation of the crankshaft 7 leads to a periodic linear movement of the piston 6 between two dead centers of the cylinder 5.

On a serving as a storage area 34 of the compressor-motor unit 4 bottom portion of the compressor housing 1 four receptacles 15, 16, 17, 18 are provided (see Fig. 4 ), of which in Fig. 1 however only the pictures 15 and 16 are to be seen. The receptacle 15 is in this case made in one piece and comprises a base element 28 contacting the support region 34, a jacket element 20 adjoining the bottom element 28 and a spring holder 19 projecting from the bottom element 28 in a height direction. The receptacle 15 is provided with a cavity of the spring holder 19 aufgestülpt on a survey 29 of the compressor housing 1, whereby the receptacle 15 is connected under adhesion to the compressor housing 1. The jacket element 20 encloses the spring holder 19 and a receiving volume 32 of the receptacle 15 which forms between the spring holder 19 and the jacket element 20 on the circumference or in the form of a sleeve. The jacket element 20 projects beyond the spring holder 19 in the height direction 23 (see also FIG Fig. 2 ).

Fig. 2 is a detail of the receptacle 15. It can be seen that a mirror of the lubricant 9 within the receiving volume 32 of the receptacle 15 is significantly higher than in a bottom region of the compressor housing 1, where during the normal operation of the refrigerant compressor, a lubricant sump 30 is formed, the maximum sump height 14, however, is limited by the position of the compressor-motor unit 4. This is inventively achieved in that the jacket member 20 of the receptacle 15 projects beyond the sump height 14 of the lubricant sump 30 in the height direction 23. The five disposed within the receiving volume 32 spring coils of the spring element formed as a helical spring 10, which is slid for attachment to the spring holder 19 of the receptacle 15 and fixed there under frictional connection are thus surrounded by lubricant 9, whereby a damping of the compressor motor Unit 4 caused and transmitted via the spring element 10 to the compressor housing 1 vibration is achieved. For the purpose of fixing the spring element 10 with the receptacle 15, the spring element 10 is pushed onto the spring holder 19 of the receptacle and connected to this under adhesion. Analogously, the spring element 10 is connected via a further spring holder 33 of the compressor-motor unit 4 with the compressor-motor unit 4.

In Fig. 2 surrounds the jacket member 20, the spring holder 19 of the receptacle 15 sleeve-shaped and has considered over its entire height the same clear inner diameter. In this embodiment, all arranged within the receptacle 15 spring coils of the coil spring formed as spring element 10 contact the jacket member 20. In embodiments of the refrigerant compressor, in which the recordings are made of an elastomer, preferably made of a fluoroelastomer, this effect of noise reduction is particularly pronounced Since this material has the necessary flexibility and also the high temperatures and the constant contact with lubricant 9 permanently withstand.

Unlike the in Fig. 2 Shown 15 are in Fig. 3 only first spring coils 21 of the spring element 10 - here: the first and the second turn - with the jacket element 20 of the in Fig. 3 pictured receptacle 15 in contact, so that further spring coils 22 of the spring element 10, which further from the storage area 34 of the compressor housing 1 are removed as the first spring coils 21, of the jacket member 20 of the receptacle 15 are radially spaced.

By radial spacing in the sense of the present invention is a normal to the height direction, ie the direction in which the spring element 10 and optionally the spring holder 19 protrudes from the receptacle 15, standing distance between a disposed within the receiving volume 32 spring coil and the same height To understand arranged with the respective spring coil portion of the jacket member 20.

In addition, the spacing of the further spring coils 22 - here: the third, fourth and fifth turns - of the jacket member 20 leads to an additional reduction of the noise emission of the refrigerant compressor as a whole, since noises caused by the collision of the spring element 10 with the jacket member 20 would be largely avoided.

The jacket element 20 of the receptacles 15 off Fig. 3 has a height direction 23 extending in the first height portion 25 and a likewise extending in the height direction 23 second height portion 26 on. A first inner diameter 27 of the sleeve-shaped jacket element 20 is constant over the entire first height section 25. In its second height section 26, however, the jacket element 20 has a diameter enlargement 24 extending continuously from the first clear inner diameter 27 to a maximum clear inner diameter 31 reached at the upper end of the jacket element 20. This ensures that the spring element 10 can not collide with the jacket element 20 even at high deflections.

Fig. 4 shows a plan view of a bottom portion of the compressor housing 1. In each case a storage area 34 of the compressor housing 1, the receptacles 15, 16, 17, 18 are arranged. Each receptacle 15, 16, 17, 18 holds a spring element 10, 11, 12, 13 arranged. Together, the receptacles 15, 16, 17, 18, which may be formed according to the embodiments described above, and the spring elements 10, 11, 12, 13 arranged therein from a storage system 3 for the compressor-motor unit 4 of the compressor.

LIST OF REFERENCE NUMBERS

1

compressor housing

2

housing interior

3

storage system

4

Compressor-motor unit

5

cylinder

6

piston

7

crankshaft

8th

engine

9

lubricant

10, 11, 12, 13

spring element

14

sump level

15, 16, 17, 18

admission

19

penholder

20

jacket element

21

first spring coil

22

further spring coils

23

height direction

24

Diameter extension

25

first height section

26

second height section

27

first light inside diameter

28

floor element

29

survey

30

lubricant sump

31

maximum light inside diameter

32

receiving volume

33

Another spring holder of the compressor-motor unit

34

storage area

Claims (11)

A compressor for compressing refrigerant circulating in a refrigeration cycle, comprising a compressor housing (1) enclosing a housing interior (2) of the compressor, a compressor-motor unit (4) which comprises at least one piston (6) moving in a cylinder (5) and a motor (8), - At least one spring element (10,11,12,13), preferably a plurality of spring elements (10,11,12,13), via which spring element (10,11,12,13), the compressor-motor unit (4) elastically bearing at a storage area (34) of the compressor housing (1), preferably at a bottom portion of the compressor housing (1), is connected, and at least one receptacle (15, 16, 17, 18) arranged on the storage area for the at least one spring element (10, 11, 12, 13), preferably a receptacle (15, 16, 17, 18) for one spring element (10 , 11,12,13), wherein the respective spring element (10,11,12,13) is received in the receptacle (15,16,17,18), - wherein the receptacle (15,16,17,18) a bottom element (28) which is connected to the storage area (34) and from which the spring element (10,11,12,13) protrudes in a height direction (23), a jacket element (20), which jacket element (20) surrounds the spring element (10, 11, 12, 13) in the manner of a sleeve, and a receiving volume (32) delimited by the bottom element (28) and the jacket element (20), in order to accumulate Allow lubricant (9) in the receiving volume (32), so that in the receiving volume (32) arranged portion of the spring element (10,11,12,13) in the operating state of the compressor of lubricant (9) is wrapped, characterized in that
the jacket element (20) projects over a sump height (14) of a lubricant sump (30), which lubricant sump (30) forms in the housing interior (2) in the operating state of the compressor, in the height direction (23). A compressor according to claim 1, characterized in that a minimum clear inner diameter of the jacket element (20) larger is as a maximum outer diameter of the spring element (10,11,12,13). A compressor according to claim 1 or 2, characterized in that in an operating state of the compressor, in which operating state, the at least one spring element (10,11,12,13) is loaded only by the weight of the compressor-motor unit (4), at least the first three spring windings (21, 22), preferably 50% of the spring windings (21, 22), particularly preferably more than 70% of the spring windings (21, 22), of the spring element (10, 11, 12, 13) within the receiving volume ( 32) of the respective recording (15, 16, 17, 18). A compressor according to claim 3, characterized in that extends at least between two of said in the operating condition of the compressor within the receiving volume (32) lying spring coils (21,22) of the respective spring element (10,11,12,13) a spring travel. Compressor according to one of claims 1 to 4, characterized in that the receptacle (15,16,17,18) in the height direction (23) of the receptacle (15,16,17,18) protruding pin-like spring holder (19), via which spring holder (19), the spring element (10,11,12,13) is connected with its inside under adhesion to the receptacle (15,16,17,18). Compressor according to claim 5, characterized in that the jacket element (20) projects beyond the spring holder (19) of the receptacle (15, 16, 17, 18) in the height direction (23). Compressor according to one of claims 1 to 6, characterized in that the jacket element (20) of the receptacle (15,16,17,18) is designed to be elastic. Compressor according to claim 1 to 7, characterized in that at least the jacket element (20), but preferably the entire receptacle (15,16,17,18), made of an elastomer, more preferably made of a fluoroelastomer. Compressor according to one of claims 1 to 8, characterized in that a clear inner diameter of the jacket element (20) monotonically increases viewed in the height direction (23). A compressor according to claim 9, characterized in that the jacket member (20) has a first height portion (25) and a second height portion (26), wherein the first height portion (25) and the second height portion (26) respectively in Height direction (23) extend, wherein a first clear inner diameter (27) of the jacket element (20) in the region of the first height portion (25) is constant and wherein the second height portion (26) of the jacket element (20) has a diameter extension (24). Compressor according to claim 9 or 10, characterized in that the jacket element (20) in a direction parallel to the height direction (23) extending cross-section viewed at least in sections in the form of a circular arc, wherein a circular arc corresponding to this circle its center outside of the receptacle (15, 16,17,18).

Images