MACHINE, LIKE COMPRESSOR, OF THE TYPE OF SPIRAL RESTRICTOR
The invention concerns a machine, like compressor, by the type of spiral restrictor, with two spiral construction units, which per a front plate with a sealing surface and a one on this arranged spiral coat, whose center axle stands, exhibits generally perpendicularly on the associated sealing surface and is movably stored at a stationary camp body of those the spiral construction unit relatively on the other hand circling, and the s other spiral construction unit is axially springily with springs mobile supported, whereby the spiral construction units with their spiral coats interlink, in order in the enterprise, if itself the spiral construction unit induces circling to form between the spiral coats moving medium chambers whereby in each case of the associated Dicht'fläche turned away edge (face) of the spiral coat one of the spiral construction units in seals interference with that Sealing surface of the other spiral construction unit stands.
IO such machines are used in particular for consolidating gaseous media, although them also e.g. as bungee cord, pump etc. to be trained to be able. For purposes of the illustration those are concerned in the following described execution forms however with a hermetic coolant compressor.
Generally a machine of the kind here in speech exhibits two spiral construction units of similar shape, which engage, whereby the spiral construction unit is twisted inversely to the other one around 180 ". In the enterprise a spiral construction unit (the “circling spiral”) circles relatively on the other hand (the “firm” or “not-circling” spiral), in order to cause itself moving line contacts between the flanks of the coats, whereby moving, final, mondförmige medium chambers form. The spirals are normally formed as involutes of a circle, and ideally there is no relative relative between the spiral construction units during the enterprise, i.e. the movement is a purely curvilinear shift (i.e. no turn of any line in the body). The medium chambers lead or the medium of a first zone in the machine, which can be displaced which can be consolidated, where a medium inlet is intended, to a second zone, where a medium discharge opening is intended. The volume of a final chamber changes with their movement from the first zone to the second zone. At any time at least two final chambers exist, and if at a certain time several pairs of final chambers are present, each pair will have other volumes. In a compressor the second zone lies with a higher pressure than the first zone, and it is central in the machine arranged, against what the first zone at the outer circumference of the machine is arranged.
Two kinds of contacts define the medium chambers, which are formed between the spiral construction units: itself axially extending tangential line contacts between the spiral sides or flanks $piralmäntel, which are caused by radial forces (“flank sealing”), and by axial forces between the even edges (the “points” or faces) of each coat and the opposite front plate of caused surface contacts (“point sealing”). For a high efficiency a good sealing must be achieved for both kinds by contacts, whereby the invention is concerned primarily with the point sealing.
The structure of such a machine is thus already well-known since longer, and you are awarded certain advantages. For example such machines have a high isentropic and volumetric efficiency, and they are relatively small and easy weighty with a certain capacity. They are quieter and vibration-freer than many compressors, since no large hinund moving ten “parts (like e.g. piston tie bars etc.) in the use is, and there the entire medium river in a direction effected, with simultaneous compression in several opposite chambers, it comes to fewer vibrations according to the pressure. Also such machines are reliable and stable, since relatively little mobile parts are used, the speed of the movement between the spiral construction units are relatively low and a relative insensitivity in relation to contamination of the 4s of medium are given.
One of the difficulties the construction of such a machine lies in the technology of the achievement of a point sealing under all operating conditions and also at the speeds in a machine with variable speed. Conventional way tries to reach one this by it that first of all extremely exact and very expensive techniques of the machine treatment are used, secondly the edges or faces with spiral seals to be provided, which are often unreliable however to unfortunately hardly insert and, or thirdly an axial reconducting strength is used by axial linking of the circling spiral construction unit up in the direction of the non-circling spiral construction unit using compressed working medium. The latter technology has some Vartei] e, is however afflicted with problems: like that it is additionally necessary for planning a resetting force for adjusting in the sense of an axial separation the working Kraft also to adjust the tilting motion at the spiral construction unit according to the radial forces caused with the pressure just as the inertia loads which are due to the circling movement, whereby both are speed dependent. Accordingly a×iale balance strength must be relatively high, and it will be optimal at only one speed.
RK 401,090 B for the production of an axial pre-loading between the two spiral construction units of a spiral positive-displacement engine is well-known it from the US-3 874,827 A to press the one spiral construction unit by a front side spring washer (or a front side flexible gasket) in axial direction against the associated other spiral construction unit. In the consequence however the problems mentioned above arise. A comparable construction is descriptive in the DE 2,428,228 A, whereby to the Gegeneinanderdrücken of the two spiral construction units in axial direction on the one hand for example a lock washer as well as on the other hand a pressure chamber contained in a hub beginning a spiral construction unit are intended there. Also with this well-known machine thus the descriptive problems can occur according to of unwanted tilting motions, seals problems of etc..
The DE-1 935,621 A shows a machine construction comparably the constructions in accordance with the two first mentioned block letters, i.e. with a spring washer effective at a face of the spiral construction units and/or a pressure balance chamber.
In the long run is a displacement machine from the DE-2 831,179 A1 well-known, whereby however the arrangement is turned off only to a lateral elasticity a of the spiral construction unit to be able to compensate in order to make a lateral evasive action possible, in order within certain framework inaccurate parallel guides, inaccurate outline manufacturing etc.
Task of the invention is the creation of a spiral positive-displacement engine with a spiral construction unit mounting, by which the problems arising with the well-known machines are eliminated regarding sealing etc.
This task is solved according to invention thereby that an axially flexible mounting plate, which is supported concerning the camp body in a firm position, with which to its axialmobile storage in a place in the center between the levels of the two sealing surfaces is connected to other spiral construction unit generally. It is reached by this measure among other things that unwanted Kippoder dutch rolls of the axially mobile spiral construction unit, e.g. under mechanical Eigenresonanz5, is zen suppressed and/or prevented. In favourable way and problem-free an axial pre-loading of the other non-circling spiral construction unit is made possible with pressure, whereby inertia load problems do not arise, and the necessary extent of such a pre-loading with pressure is limited to a minimum extent, which is sufficient straight, in order to compensate the axial separating forces, whereby the necessary reconducting forces are reduced considerably and in favourable way. Although a compressive prestress of the non-circling spiral construction unit was as mentioned already suggested (S. US-3 874,827 A), then is to be noted nevertheless that the well-known machine has the same disadvantage regarding the arising tilting motions as that one, with which the circling spiral construction unit is linked up.
In addition the training according to invention plans improved control of the non-axial movements of the non-circling spiral construction unit.
A structurally favourable arrangement of the invention plans that the other spiral construction unit is held by the mounting plate against a rotating motion as well as radial movement relative to the axle of the circulation a of the spiral construction unit. By this training no additional mechanisms are necessary for the prevention Drehund radial movement of the other spiral construction unit.
The moreover is of advantage, if the mounting plate on several, in a common level in the center between both Dichtfiächen which are appropriate the points in distance from each other with the other spiral construction unit is connected, so that an even force transmission between the camp body and the axially mobile spiral construction unit is made possible over the mounting plate.
It is also favourable, if the mounting plate contains at least one leaf spring, which is in the case of normal axial deviations of the axially mobile other spiral construction unit within their yield strengths flexibly, =5. It is reached by this flexible connecting link that the axially mobile spiral construction unit is already reset with small movements again into its initial position.
In order to prevent with the axially mobile spiral construction unit deviations and/or movements in circumferential direction or in radial direction, it is favorable furthermore, if the mounting plate Jn sliding interference contains standing back support surfaces at the Lagerk0rper and/or spiral construction unit.
Particularly favourable and simple training of these back support surfaces in sliding interference is characterized by that one of the back support surfaces is formed by drilling taking up adjustably the tap by a tap and other; it is further favorable, if the tap is adjustably fastened; preferably besides taps and drilling have circular cross-section.
So that the axial separating forces between the two spiral construction units, arising when starting the machine, do not know too largely werc EN, a favourable further training of the machine according to invention is characterized by an attack for the delimitation of the Axiatbewegung of the other spiral construction unit away from the one, circling movable spiral construction unit on a predetermined peak deviation. Favourable way is in such a manner intended this attack that the peak deviation is sufficiently small fixed, so that the RK 401,090 B machine in the approach enterprise, Iöei of maximum shift can work. It is reached by this measure that the compression function of the machine is ensured when starting also.
In accordance with a preferential execution form of the invention it is intended that the mounting plate contains at least a feather/spring generally u-shaped in plan view, whose bar part is held relative to the camp body in position and whose thigh close is connected to its ends with the other spiral construction unit. By the u-shaped training a mechanically favorable Betestigung the same is made possible for the feather/spring on the one hand with the camp body and on the other hand with the axially mobile spiral construction unit.
On the other hand it proved also than vortei] haff, if the mounting plate contains a lock washer, which is connected with the other SpiralbauteiJ with its exterior relative to the camp body held and with its inside. The circle-circular training of this kind of feather/spring makes relatively simple production possible. In order to affect and/or reduce the Steiiigkeit of this lock washer, it is here further favorable, if the lock washer possesses several openings, in order to increase its pliancy. These openings can become likewise in simple way manufactured, e.g. punched. Preferably each opening is oblong and under an angle arranged concerning one generally radially of the axles extending line in plan view. Thereby it is possible to reduce the rigidity of the lock washer particularly effectively without with an axial movement of the spiral construction unit a noticeable rotating motion of the same arises.
Regarding the desired flexible characteristics and the corrosion resistance it is of advantage special, if the feather/spring consists of spring steel, whereby it preferably consists of flat spring steel.
An appropriate, structurally simple type of mounting of a Federanordnung are characterized by that a feather/spring gehorende for mounting plate is fastened to more eib.er generally even, of a belonging to transverserunning front surface to the camp body, axially extending Tragsäule.
Here it is further favourable, if the front surface of the Tragsäule essentially lies in one level z5 parallel to the levels of the sealing surfaces, whereby furthermore it is preferably intended that the level of the front surface of the Tragsäule lies between the levels of the sealing surfaces. Hereby it is ensured that allf llige Kippbzw. Taume] movements of the axially mobile spiral construction unit to a minimum to be reduced.
On the other hand it is also by advantage, if the axially mobile other Spira] construction unit is equipped with a generally even mounting surface, to which the feather/spring is fastened with a distant thigh; preferably here the mounting surface lies approximately in the level of the Stirntläche of the Tragsäule. Also during this arrangement Kippbzw can. Dutch rolls to be minimized.
Furthermore a particularly appropriate arrangement of the Tragsäule consists of it that the front surface of the Tragsäule has one generally perpendicularly to the thigh of the feather/spring running edge, in order to facilitate a bending of the feather/spring when minimum demand.
In particularly favourable way a relatively soft poetry is arranged between the front surface of the Tragsäule and the feather/spring, whereby the distribution of the clamping load is reduced to the feather/spring. Preferably thereby the poetry has an edge, which essentially coincides with the edge of the Stirntläche of the Tragsäule, whereby bending the feather/spring is likewise facilitated. Also it proved as appropriate, if the poetry consists of a relatively soft metal. As a result of it advantages in view to mechanical characteristics and corrosion behavior of the poetry arise.
With a further preferential type of mounting of the feather/spring it is intended that the feather/spring is held by an attack on the front surface in position, whereby the attack limits the axial movement of the other spiral construction unit away from the one, circling for movable spiral construction unit to a predetermined stroke it arises hiedurch the saving of a separate construction unit than attack.
It was shown that by easy amending of the configuration of the sealing surfaces and the edges of the spiral construction units improvements can be obtained. It is preferentially according to invention intended from there that the sealing surfaces are easily concave, whereby a part of each of the two sealing surfaces between the opposite flanks of the spiral coat is axially gradated trained if necessary, in order to define an easily concave surface.
Also it can be planned with advantage that the edges of the spiral coats are easily concave.
The advantage is reached by such profile giving among other things that a thermal increase can be compensated near the center of the machine, and the use of relatively rapid machine manufacturing operations for the production is facilitated; this leads to a compressor, which reaches its maximum power in a much shorter meantime duration than conventional machines.
A further structurally favourable execution form is characterized by that the mounting plate contains several springy consoles, which are attached between a machine housing and axially mobile 4 RKs 401,090 B other spiral construction unit; each console is preferably L-shaped, whereby a thigh to the housing and the other thigh are fastened to the axially mobile other spiral construction unit; is flexible each console furthermore favourable-proves during a normal axial movement of the axially mobile other spiral construction unit within its flexible borders. This Anorclnung is characterised by an s an extremely simple structure.
A further favorable execution form is characterized by that the mounting plate contains several tubing elements, which are connected with the axially mobile other spiral construction unit ever with a flange relative to the camp body held and with another flange; preferably is here arranged the flanges in a generally horizontal lateral plane, and/or the tubing elements are approximately arranged around the axially mobile other spiral construction unit in tons of circumferential direction in distances, whereby further preferably contain the tubing elements one tubing part each with a center axle, which runs generally tangential to the axially mobile other spiral construction unit, and preferably in pairs from 0° and/or 180 ° deviating angles include the tubing elements with their axles. With these training by the use of the tubing elements a very stable structure is obtained.
In the case of the execution of the mounting plate using a Blattfecler it is of advantage further according to invention, if the leaf spring is fastened to the axially mobile other spiral construction unit centrically relatively to the camp body held and with their ends, or if the leaf spring is held centrically to the axially mobile other spiral construction unit fastened and with their ends relative to the camp body. Preferably the feather/spring is oblong and in plan view relative straight, or the feather/spring is oblong and in plan view arc-shaped. Also this arrangement is characterised by a relatively simple structure, whereby slight axial movements of the spiral construction unit cause only a stretching of the leaf springs within its flexible borders.
Special, particularly regarding control of the movements in the enterprise, is of advantage it then, if the mounting plate contains several balls, which are arranged ever in two each other opposite, axially running slots, whereby a groove is relative to the camp body firm and the other groove relative to the axially mobile other spiral construction unit firm is; a groove is preferably arranged in a ring, which surrounds the axially mobile other spiral construction unit, and which is linked up, in order to before-load the balls in the slots. Because of the small rolling friction of the balls a possible axial movement of the spiral construction unit a slight resistance becomes opposite, so that the return to the initial position under guidance rapidly and under small energy expenditure can take place.
This special advantage is also obtained in similar way, if the mounting plate contains several roles, which are arranged ever in two each other opposite, axially arranged slots, of which one is relative to the camp body firm and which is other one relative to the axially mobile other spiral construction unit firm, whereby the one groove is arranged further preferably in a ring, which surrounds the other spiral construction unit 3s, whereby the ring is linked up, in order to load the roles in the slots.
It proved surely furthermore regarding the avoidance of Kippund dutch rolls as favorable, if the mounting plate contains at least two axially running guidance surfaces, which are firm concerning the camp body, and if concerning the axially mobile other spiral construction unit firm back support surfaces with these guidance surfaces stand in interference, whereby an initial tension mechanism presses the back support surfaces in plant to the guidance surfaces; preferably the guidance surfaces are even and radially inward turned; further the guidance surfaces in places can be arranged in a distance according to a center angle of 90 °, and preferably here the initial tension mechanism a Kraft exercises toward a line, which halves the angle between the guidance surfaces. Also this execution form is simple and robust in the structure.
With another execution form with a mounting plate using leaf springs it is preferably intended that several leaf springs are arranged in circumferential direction in distance from each other around the axially mobile other spiral construction unit, and/or that di Halterung contains a pair of leaf springs, which are arranged at opposite sides of the axially mobile anaeren spiral construction unit.
Axial movements can be brought by the resetting force of the leaf springs more rapidly to fading away.
Around Kippbzw. Dutch rolls of the axially mobile spiral construction unit relative to the circling spiral construction unit particularly effectively to prevent, a particularly favourable further training of the machine according to invention, with which the axially mobile spiral construction unit is linked up against the circling spiral construction unit by fluid printing, is characterized by one in a firm situation concerning the camp body sports club attached cylinder chamber, in which with the axially mobile other spiral construction unit of connected pistons in a direction essentially parallel to the axles is adjustably taken up, and which is supplyable under pressure set fluid. By the arrangement of a piston at the axially mobile spiral construction unit in favourable way on the one hand an axial guidance is obtained and on the other hand to kreisenAT 401,090 B the spiral construction unit arranged application of force and/or pre-loading. Generally crosswise channels extend favourable way, in order to lead pumped medium with outlet pressure from the machine, and are intended elastomers a ring seal between the piston and the cylinder chamber at axially facing sides of the s of channel with this machine furthermore by the side panels of the piston and/or the cylinder chamber. This arrangement causes a flowtechnically favorable derivative of the compressed medium into the discharge opening chamber. At the same time by the poetry it is prevented that medium between pistons and cylinder wall can back-flow.
A favorable further training is here furthermore characterized by a further cylinder chamber attached concerning the Lagerköro pers in a firm situation, in which further pistons connected with the axially mobile other spiral construction unit in a direction essentially parallel to the axle is adjustably arranged, and which is supplyable under pressure set medium. By the arrangement of two cylinder chambers the possibility is given, to subject whose piston alternatively with different pressures. Preferably thereby a cylinder chamber with outlet pressure and the other cylinder chamber with a pressure between the intake pressure and outlet pressure are subjectable. In particular it is intended that the first mentioned cylinder chamber is that cylinder chamber, which is subjectable with outlet pressure. In addition, alternatively both Zylinderkammem with a pressure between outlet pressure and intake pressure can be subjectable. Thus the possibility is offered here of obtaining an optimal axial balancing for different modes of operation.
A favourable execution form of the machine, with which the two spiral construction units are against each other linked up by fluid printing, is further characterized by two fluid chambers, whose pressures together one on the other too generally link up the two spiral construction units toward parallel to the axle of the circulation the one to be strengthened circling spiral construction unit, subjected with different pressures, in order the seals effect. Preferably here one of the fluid chambers with outlet pressure is subjectable; and/or one of the fluid chambers with a pressure between the intake pressure and outlet pressure is subjectable.
In further arrangement of this machine it is preferably intended that at least one of the fluid chambers, preferably both Fluidkammem, is (ever) a cylinder chamber firm concerning the camp body, in which with one of the spiral construction units of connected pistons axially is generally adjustably arranged; here the two pistons can be connected with the other, axially mobile spiral construction unit.
On the other hand preferably an axially directed surface one of the spiral construction units with the two pressures is subjectable; each fluid chamber is preferably defined partially by an exposed surface of the spiral construction unit; preferably a ring seal is arranged elastomers between the fluid chambers. Also with this machine the possibility exists of subjecting the pistons in favourable way with different pressures.
32 for this purpose it can be planned besides according to invention that in one of the spiral construction units a channel is intended for leading fluid from one of the medium chambers with a pressure between intake pressure and outlet pressure into one of the cylinder chambers, whereby preferably further a channel is intended for leading fluid with outlet pressure into the other cylinder chamber, preferably in the same spiral construction unit as the first mentioned channel. The arrangement and the cross section of the channels can be selected in such a way that the desired pressures are obtained.
Is of advantage special it, if the cylinder chambers and the pistons are and are formed the cylinder chambers generally concentrically to each other by a gradated cylinder wall with two different inside diameters, whereby the further piston is formed by a Ringschulter at the first mentioned piston, which is enclosed by the diameter-smaller part of the cylinder wall, against what the further piston is surrounded by the diameter-larger part of the cylinder wall. This training of the cylinders and pistons is characterised by an easy adjustableness and a high working reliability.
With the machine the according to invention of the kind, with an engine, a propelable a crankshaft of this engine around an essentially vertical an axle as well as a source of lubricant is of advantage it special, if in the circling spiral construction unit a circle-cylindrical axial drilling is appropriate, in which one like that driver can is stored, which has for its part a further cylindrical axial drilling, in which a crankpin of the crankshaft is taken up, whereby the spiral construction unit is shiftable with circulating crankshaft into a circulation, and if in the crankshaft an oil supply channel is intended, the lubricating oils from the source of oil to the top side of the crankpin leads, of where the lubricating oil is outward pressed with circulating cure with wave by the centrifugal energy, whereby in the top side of the driver can one Recess as collecting lubricating oil is trained, in order to supply this to the axial drillings for lubrication. In connection with the centric according to invention, favorable drive training is obtained by these measures springy mounting plate for the other spiral construction unit, in order to avoid in particular the unwanted pull-out torques, whereby further in adequate way a supply of RK 401,090 B lubricating oil is guaranteed for drive connection between the crankshaft and the circling spiral construction unit.
In order to derive surplus oil effectively, it is here intended also with advantage that the driver can possesses outside an even surface, which defines a gap between it and the first mentioned axial drilling for the oil current, which with the recess in connection is located; further the even surface can run axially from the lower surface to the top side of the driver can; furthermore preferably the further axial drilling points a cross section out of round exhibits, whereby an oil flow gap between the driver can and the crankpin is defined, which are located in connection with the recess; the further axial drilling has preferably generally oval form and the crankpins is generally circular. For the simple coupling of the crankpin with the driver can it is here also favorable, if the further axial drilling and the crankpin exhibit ever an even surface, which are located with one another in drive connection.
A preferential execution form regarding the recess mentioned for collecting lubricating oil is characterized by that the recess is a groove in the upper surface of the driver can, which extends between the further axial drilling and the outside surface of the can.
Also it is favorable, if the angle position of the recess hastens after relatively too those of the oil supply channel in direction of rotation of the cure with wave easily, whereby a reliable derivative can take place from surplus oil.
To the supply from oil to the lubrication system it is of advantage further, if in the lower part of the crankshaft an oil pump is arranged, which is attached in a sump forming the source of oil and lubricating oil from this sump supplies to the oil supply channel with turning crankshaft. The impact of the oil pump can be based thereby in simple way on centrifugal force developing with the turn.
In order to prevent surely that the circling spiral construction unit rotates relative to the camp body and the axially mobile spiral construction unit, it is also particularly favourable it, if the camp body around the machine axle a generally circular a part has and relative to the protection of of the circling spiral construction unit against a turn to the camp body a cross claw clutch (Oldham clutch) is intended, whereby at the camp body generally diametrically aligned first storage spaces are defined and at the circling spiral construction unit generally trained second storage spaces, rectangular to the first storage spaces, and essentially surround a crosswise arranged ring the circular camp part of the body, whereby the internal extent range of the ring has a form deviating from the circle and the ring at opposite sides covers circular arcs with same radius, their center of curvature in a predetermined distance lies apart, and whereby essentially straight parts connect the sheets, which ring further at a side a first pair of wedges in linear Gieiteingriff with the first mentioned storage spaces exhibits and at the opposite side a second pair spoon in linear sliding interference with the storage spaces secondarymentioned. The employment of this particularly trained Oldham clutch makes an ideal storage possible of the circling spiral construction unit relative to the camp body, without thereby the spiral construction unit turns around its own axle. A further advantage is to be seen also that the Oldham ring permits the use of a larger thrust bearing or an external housing with reduced diameter with a thrust bearing to given size.
It is of advantage special with this execution form further, if the radius is additional equal the radius of the circular Lagerkörperteites a predetermined minimum play, and if furthermore the circular camp part of the body defines an even transverserunning thrust bearing surface, which supports the circling spiral construction unit sliding. Preferably the predetermined distance is in a direction, which runs generally parallel to the diameter, on which the first mentioned storage spaces is to each other aligned, and! or the predetermined is distance equal to the double one of the orbital radius of of the circling spiral construction unit is favorable also it, if the first mentioned are formed storage spaces by a pair of radial slots in the camp body, which sides, related to which axle, are arranged, facing to each other diametric, and/or if the second storage spaces are formed by a pair of radial slots in the circling spiral construction unit, which are intended concerning the axle each other diametrically facing sides on.
A further preferential execution form that according to invention machine is characterized by that for training as hermetic compressor a final housing with a medium inlet port is intended in a wall, whereby in distance from this inlet port a compressor medium inlet is intended that to the housing in overlap to the inlet port a guidance wall is fastened, underneath the inlet port the opening limited, which serves as drain for oil carried in the inlet medium, which separates itself with the impact the guidance wall, to keep and that from the guidance wall defining construction unit extends an axially extending passage upward, in order inlet medium, which is addressed to the opposite end of the construction unit into the compressor inlet supplied. With this RK 401,090 B training, which is suitable in particular for a coolant compressor, mixing sucking in medium is also prevented inside the compressor housing dispersed oil, whereby the guidance wall works as oil separator, in order to remove oil already carried, and prevents the transmission of engine warmth on the sucking in medium, whereby the overall efficiency is importantly improved. The passage s can be partly limited thereby by the plastic part and partly by the housing; preferably the lower opening between the guidance wall and the housing is defined, whereby it is further favorable, if at the construction unit a flexible latch is angeformt, which against a against) agerfläche within the housing is pressed, in order to press the construction unit in position.
The invention below on the basis of remark examples o represented in the design still continues to describe it to show: Fig.1 a vertical cut by a compressor of the type of spiral restrictor, whereby parts are away-broken, with a cutting force generally in accordance with the line 1-1 in Fig.3, whereby determines parts is somewhat twistedly represented; Fig.2 a similar cutaway view in accordance with the line 2-2 in Fig.3, whereby likewise some parts are easily twistedly represented; Fig.3 a plan view on the compressor after the Fig.1 and 2, whereby a part of the top side was removed; Fig.4 a plan view 5 similarly those in accordance with Fig.3, whereby however the entire upper building group of the compressor was removed; the Fig.5, 6 and 7 Teildraufsichten similarly the right part of the Fig.4, whereby successively parts are distant, in order to show the details of the construction more clearly; Fig.8 a partial section in accordance with the line 8-8 in Fig.4; Fig.9 a partial section in accordance with the line 9-9 in Fig.4; Fig.10 a cutaway view in accordance with the line 10-10 in Fig.1; the Fig.11A and 11B in completion spiral vertical cut constant lungs essentially in accordance with the lines 11A-11A and/or 11B-11B in Fig.10, whereby the profile graphically shortened and strongly exaggerated represented is; Fig.12 Jn AbwJck} ung a sectional view Jm a)) gemeJnen in accordance with the line 1212 in Fig.10; Fig.13 a plan view on a Oldham ring in changed new form; Fig.14 a side view of the Oldham ring of Fig.13; Fig.15 a partial section opinion essentially in accordance with the line of 15-15 in Fig 10, for the illustration some lubrication channels; Fig.16 a cutaway view essentially in accordance with the line 16-16 in Fig.15; Fig.17 a horizontal cut essentially in accordance with the line 1717 in Fig.2; Fig.18 in increased yardstick a vertical partial section for the illustration of another execution form; Fig.19 in an opinion similarly Fig.18 a further execution form; Fig.20 a somewhat schematic horizontal partial section for the illustration of another technology for the mounting of the non-circling spiral construction unit door a limited axial indulgence; Fig.21 a cutaway view essentially in accordance with the line 21-21 in Fig.20; Fig.22 a cutaway view similarly Fig.20, however under illustration of a further technology for the axially flexible mounting of the not-circling spiral construction unit; Fig.23 an opinion similarly Fig.20, which illustrates however a further technology for the mounting of the non-circling spiral construction unit; Fig.24 a cutaway view essentially in accordance with the line 24-24 in Fig.23; Fig.25 in a representation similarly Fig.20 a further technology for the mounting of the non-circling spiral construction unit; Fig.26 a cutaway view essentially in accordance with the line 26-26 in Fig.25; Fig.27 in an opinion similarly Fig.20 still another another technology for the mounting of the not-circling spiral construction unit; Fig.28 a sectional view essentially in accordance with the line 28-28 in Fig.27; Fig.29 in an opinion similarly Fig.20 a further technology for the mounting of the non-circling spiral construction unit; Fig.30 one essentially cut-regards in accordance with the line 30-30 in Fig.29; the Fig.31 and 32 opinions similarly Fig.20, whereby two additional, similar techniques for one are illustrated limited axially flexible attachment of the non-circling spiral construction unit; and Fig.33 an opinion similarly Fig.20, which illustrates schematically still another another technology for limited a×ial the flexible attachment of the not-circling spiral construction unit.
Although the invention can be wandt in principle with the most diverse kinds of spiral type machines ange4s, it is to be described nevertheless below for example on the basis a hermetic compressor, in detail in a compressor, which is used to the compression by cooling agent for air conditioning systems and cooling systems.
In accordance with the Fig.1-3 the machine three master units exhibits, i.e. a central building group within a circle-cylindrical steel housing 12, a Oberteiibaugruppe 14 and a Unterteilbaugrupso PE 16, which is welded at the lower and/or upper end of the housing 12, in order to lock and seal this. The housing 12 takes up the main components of the machine, among them generally an electric motor 18 with a stator 20 (with conventional windings 22 and protection 23), which in a press fit within the housing 12 is attached, a red one 24 (with conventional flags 26), which in a heat shrinkage seat on a crankshaft 28 is attached, a compressor body 30, which is welded preferably ss with the housing 12 at several standing, as e.g. with 32, arranged in circumferential direction in distances, and carries a circling spiral construction unit 34 with a spiral coat 35, with a desired standard FlankenDrofil and a Spitzenoder front surface 33, an upper crankshaft bearing 39 in a conventional two-piece bearing construction, non-circling, axially flexible RK 401,090 B spiral construction unit 36 with a spiral coat 37 with a desired standard flank profile (preferably equal that one of the spiral coat 35), which “combs” with the spiral coat 35 in the usual way, and which further a Spitzenoder possesses front surface 31, whereby in the spiral construction unit 36 a discharge opening 41 is intended and between the spiral construction unit 34 and the compressor body 30 a Oldham ring 38 is appropriate, in order to prevent a turn of the spiral construction unit 34; further a suction inlet fitting is soldered on or welded and a direction sucking in building group 42 intended at the housing 12, in order to arrange the sucking in gas to the compressor inlet; a lower storage rising up console 44, which is welded at each end at the housing 12, as for instance with 46, carries a lower crankshaft bearing 48, in which the lower end of the crankshaft 28 is stored. The lower end of the compressor forms a sump, which is filled with lubricating oil 49.
The ground building group 16 exhibits a simple StahI Preßstück 50 Betestigungsflan 54 punched with several feet 52 and. The press piece of 50 is welded with the housing 12, as for instance with 56, in order to cover and closely lock its lower end.
The upper section building group 14 is a discharge opening muffler with a lower pressed steel plug 58, which is welded with the upper end of the housing 12, approximately with 60, in order to take off and more closely lock this. The plug 58 has a high-standing extent flange 62, a lug 64 (Fig punched by that. 3) is away, and within its middle range it defines an axially arranged circle-cylindrical chamber 66 with several openings 68 in the wall. For the increase of its rigidity the plug is 58 with several protruding or serrated enriches 70 provided. A circular gas discharge opening chamber 72 is defined above the plug 58 by a circular muffler member 74, which is welded at its outer circumference with the flange 62, approximately with 76, and at its Innenumtang with the external wall of the cylindrical chamber 66, approximately with 78. From the discharge opening 41 coming compressed gas arrives by the Öfnungen 68 into the chamber 72, of where it over a discharge opening fitting 80, which is assigned into the wall of the muffler 74 soldered or by brazing, is normally delivered. A conventional internal pressure relief valve building group 82 can be appropriate in a suitable opening in the plug 58, in order to discharge discharge opening gas with positive pressure the inside the housing 12.
The crankshaft 28 propelled from the engine 18 turning has a diameter-smaller camp section 84 at its lower end, with which it is stored in the camp 48, whereby it is supported with the camp section 84 limiting shoulder by a thrust washer 85 (see Fig. 1, 2 and 17). At the lower end the camp 48 an oil inlet channel 86 and a mud channel 88 are intended. The support 44 is trained and with high-standing side flanges 90 provided in the form shown, in order to increase their firmness and rigidity. The camp 48 is lubricated by immersing into the oil 49, and oil is pumped for the remaining part of the compressor by a conventional crankshaft centrifugal pump, which exhibits a central Ölkanal 92 and one thereby in connection standing, eccentric, outward bent oil supply channel 94 running to the top side of the crankshaft. A transverse channel 96 extends from the oil supply channel 94 to an extent groove 98 in camps 39, in order to lubricate this. A lower counterweight 97 and an upper counterweight 100 are fastened, approximately in any suitable way to the crankshaft 28 by plug-on to projections/leads in the beginnings 26 in usual way (more near not represented). These counterweights are from conventional shape.
The circling spiral construction unit 34 exhibits a front plate 102 with generally even, parallel upper and lower surfaces 104 and 106, whereby the lower surface 106 sliding on an even circular thrust bearing surface 108 along the body 30 rests upon. The Drucl< situation of surface 108 is lubricated over an enular groove 110, the oil of the channel 94 in the crankshaft 28 over the channel 96 supplied and the groove 98 keeps, whereby latter with a further groove 112 in the camp 39 communicates, which oil supplies 114 and 116 in the body 30 to each other cutting channels (S. also Fig. 15). The points 31 of the spiral coat 37 stand in close interference with the surface 104, and the points 33 of the spiral coat 35 stand in close interference with a generally even and parallel surface 117 at the spiral construction unit 36.
From the spiral construction unit 34 a hub 118, which has an axial drilling 120, like that in the one circle-cylindrical discharge driver can 122 is away downward is stored in a piece, in whose axial drilling 124 an eccentric crankpin 126 is arranged as drive connection, whereby this crankpin 126 in a piece at the upper end crank-wave 28 is trained. The drive takes place radially flexibly, whereby the crankpin 126 propels the socket 122 over an even surface 128 at the tap 126, which stands in sliding interference with an even camp employment 130, that in the wall of the drilling 124 is arranged 5s (see also Fig. 16). A turn of the crankshaft 28 leads to that the can 126 rotates around the Kurbelwellehachse, which leads again to that the spiral construction unit 34 moves according to a circular orbit. The angle of the even drive surface in such a manner selected that the drive introduces a slight centrifugal energy component to the circling Spirals, around the flank poetry to RK 401,090 B to strengthen. The drilling 124 is cylindrical, is however also something oval in the Quers¢hnitt, in order to permit a limited relative slip motion between taps and camps, which for its part makes an automatic separation and from there discharge possible combing with one another of the spiral flanks, if liquids or solid are sucked in into the compressor.
The descriptive radially flexible circulation drive is lubricated using an improved Ölzuführsytems, oil is pumped by the channel 92 to the top side of the channel 94, of where it is pressed radially outward by the centrifugal energy, as to Fig. 16 by the broken line 125 is suggested. The oil is collected in a recess in form of a radial groove 131, which is arranged in the top side of the can 122 along the path 125. From here it flows downward into the clearance zo between tap 126 and drilling 124 and between drilling 120 and an even surface 133 at the can 122, which to the groove 131 is aligned (Fig. 16). Surplus oil flows off then over a channel 135 in the body 30 to the sump 49.
A turn of the spiral construction unit 34 to the body 30 and the spiral construction unit 36 becomes relative to by an old urine clutch connects, which exhibits a ring 38 (S. Fig. 13 and 14), which possesses two downward managing, each other diametrically opposite arranged einstückige wedges 134, which are taken up sliding in each other diametrically facing radial slots 136 in the body 30, and which shifts further by 90 " hiezu two upward distant, each other diametrically facing einstükkige wedges 138 has, those sliding in each other diametrically facing radial slots 140 in the spiral construction unit 34 arranged are (one hievon is in Fig. 1 shown).
The ring 38 possesses a special shape, with which the use of a thrust bearing is made possible for maximum size with a given total machine size (seen in the cross section) or a minimum machine size with a given size of the thrust bearing. This is to be due to the fact that the Oldham ring 38 in a straight line induces themselves relatively to the compressor body and is configured from there with a generally oval or “racing course-like” shape with minimum inside dimensions, in order to release the edge of extent of the thrust bearing. The interior extent range of the ring 38, with a form for control, points a page 142 with a radius R, on the basis of a center x, and a opposite page 144 with the same radius R, on the basis of a center y (Fig.
13), up, whereby the intermediate wall sections are essentially straight, as with 146 and 148 in Fig. 13 is illustrated. The points of center x and y are intended in a distance from each other, which is equal the double orbital radius of the spiral construction unit 34, and they are on a line, which runs by in the middle of the wedges of 134 and radial slots 136; the radius R is equal the radius of the thrust bearing surface 108 plus a predetermined minimum play. With exception of the shape of the ring 38 the Oldham clutch works in conventional way.
Now the special hanging up system is described, over which the upper non-circling spiral construction unit is axially limited movably attached, while it is held against each radial movement and rotating motion at the same time, in order to make with this mounting an axial load pre-loading possible to the Stirnseitenoder point sealing. This suspension is best from the Fig. 4 to 7, 9 and 12 evidently. Fig. the top side of the compressor shows 4 with decreasing upper section building group 14, and the Fig. 5 to 7 shows similar TeiI Draufsichten, whereby additionally in each case parts are taken away. On each side of the compressor body 30 a pair is intended from axially managing carry-column-like holding 150, which even top sides have, which lie in a common lateral plane. The spiral construction unit 36 has an extent flange 152 with a crosswise arranged even top side, which exhibits a recess 154, in order the owners 150 to take up (Fig. 6 and 7). The owners 150 exhibit themselves axially extending threaded bores 156, and the flange 152 has appropriate holes 158 in same distances from the holes 156.
On the top side of the owners 150 an even soft metallic seal 160 is arranged, those in Fig. 6 form shown has, and on the top side of the poetry 160 is an even leaf spring 162 from spring steel and with in Fig. 5 form shown; over it a retainer 164 is intended, and all aforementioned parts are held together by screw mounting 166, which is screwed in into the holes 156. The outside ends of the feather/spring 162 are through 158 screw mountings 168 arranged in the holes fastened to the flange 152. The opposite side of the spiral construction unit 36 is held identical way. As is thus evident, itself the Spiraibauteil 36 can slightly in axial direction by bending and stretching (within the yield strengths) the feathers/springs 162 to move, it can rotate jdoch or not move in radial direction.
The maximum axial movement of the spiral construction units 34, 36 in separation direction is limited for the plant of the flange 152 (S. part of 170 in the Fig by a mechanical attack, i.e. 6, 7 and 12) against under surface of the feather/spring 162, which by a ha {tebügel 164 one supports, and in the opposite direction by plant of the spiral coat sir sides at the front plate RK 401,090 B SpiraJbauteiles facing in each case. These mechanical attacks to arrange the compressor in the enterprise to a compression also in the rare situation, in which the axial separating force is larger than the axial Rü¢kführkraft, like in the case of starting. The maximum face clearance certified of the attack can be relatively small, approximately in the order of magnitude of 0.1 mm for a spiral with a diameter from 7,5 to 10 cm and a coat height of 2,5 to 5 cm.
Before the final assembly the spiral construction unit 36 relative to the body 30 is aligned with the help of a holding device (not shown), the taps has, which are applicable into Positionierlöcher 172 at the body 30 and Positionierlöcher 174 at the flange 152. The carry-column-like owners 150 and the poetry 160 are provided with essentially aligned edges 176, which are arranged generally perpendicularly too dern over it extending part of the feather/spring 162, in order to reduce the demands. The poetry 160 supports also the distribution of the clamping load on the feather/spring 162. As shown the feather/spring is 162 in its unloaded condition, if the spiral construction unit 36 is in its condition with maximum point clearance (i.e. at the retainer 164), in order to facilitate the production with the assembly. Since the demand is so low in the feather/spring 162 over the full range of the axial movement, the initially unloaded axial position of the feather/spring should not be critical 162 however.
Of substantial importance however, that is the lateral plane, in which the feather/spring 162 is arranged, as well as the surfaces of the body 30 and the non-circling spiral construction unit 36, to which she is fastened, essentially in a gadachten lateral plane arranged is approximate, which runs by the center of the interlinking spiral coats, i.e. in the center between the surfaces 104 and 117. This makes it for the mounting plate possible planned for the axial flexible spiral construction unit 36, that from the compressed medium, which acts in radial direction, to minimize i.e. with the pressure of the compressed gas, which works radially against the flanks of the spiral coats, caused pull-out torque on the spiral construction unit.
If this pull-out torque becomes not accordingly balanced, this could lead to taking the spiral construction unit 36 off from the seat. This technology for adjusting these Kraft is superior to the application of the usual axial load pre-loading, since it reduces the possibility of an overpre-loading the spiral construction unit toward one on the other too and also sealing pre-loading makes the faces essentially independent of the compressor speed. According to the fact that the axial separating force does not work exactly in the center of the crankshaft, a small tilting motion can remain, these is however comparatively insignificant, compared to Trennund reconducting forces, which are normally found. It lies from there a special advantage in the axial pre-loading of the non-circling spiral construction unit 36, compared to that one of the circling spiral construction unit, as in the latter case the necessity consists to compensate according to tilting motions according to of radial separating forces as well as such of forces of inertia which are a function of the speed, whereby this can lead to extra large balance forces, in particular with low speeds.
The descriptive axially flexible attachment of the spiral construction unit 36 permits the use to an extremely simple compressive prestress arrangement, in order to strengthen the point sealing. This is managed by use of pumped medium with outlet pressure, or an intermediate pressure, or a pressure, which again-reflect a combination of both. In its simpler and preferential form an axial pre-loading in a Spitzenabdichtungsoder uniting direction is reached at present using outlet pressure. As best from the Fig. 1 to 3 is evident, is provided the top side of the spiral construction unit 36 with a cylindrical wall 178, the discharge opening 41 surrounds and a piston defined, which is adjustably arranged in a cylinder chamber 66, whereby elastomers a poetry 180 is intended, in order to strengthen the sealing. In this way the spiral construction unit 36 in the reconducting direction is linked up by compressed medium with outlet pressure, which affects the range at cter top side of the spiral construction unit 36, which is defined by the piston 178 (decreases 41 by the Fächel of the discharge opening).
Since the axial separating force is a function of the outlet pressure of the machine (among other things), it is possible to select a piston surface which leads to an excellent point poetry under most operating conditions. Preferably the surface is selected in such a manner that no substantial separation the spiral construction unit 34, 36 takes place at any time in the cycle during normal conditions of work.
Further at best a minimum net axial balance strength became to be present, and naturally no substantial separation in a situation with maximum pressure (maximaJe separating force).
Regarding the point poetry it was found that substantial improvements, with a minimum approach or meantime duration, chen by easy amending of the configuration of the front disk surfaces 104 and 117 as well as cfer SpiralmanteI Stirnfl 31 and 33 to be achieved to be able. Preferably everyone of the front disk surfaces 104 and 117 is easily concave trained, and if the SpiralmanteI faces 31 and 33 are arranged in similar way (i.e. the surface 31 is generally parallel to the surface 117 and the surface 33 is generally parallel to the surface 104), then stent the result contrary to what one expects 11 RK 401,090 B became, since this leads to a certain initial axial play area between the spiral construction units within the middle range of the machine, which are the range with highest pressure. It was however found that, because the central range is also the hottest a larger thermal increase in the axial direction within this range is present, which would lead the efficiency otherwise to an excessive, strongly s disparaging rubbing within the central range of the compressor. By planning this initial extra play the compressor reaches a condition of maximum point sealing, if it reaches the operating temperature.
Although a theoretically smooth concave surface may be better, it was found nevertheless that the surface can be formed in such a way that it has a gradated spiral shape, which is to manufacture much more easily maschniell and/or be worked on. As best from the strongly exaggerated representation in the Fig. 11A and ltB comes out, whereby also on Fig. 10, is actually formed by spiral gradated surfaces 182, 184, 186 and 188 is referred the surface 104, although it is generally even. The face surface 33 is trained in similar way with spiral stages t90, 192, 194 and 196. The individual Sufen should be as small as possible, whereby the total shift from the level is a function of the Spirelmantelhöhe and the thermal expansion coefficient of the used material. For example the relationship of Manteloder F can lie} ugelhöhe to axial surface total shift within the range of 3000:1 to 9000:1 in a machine with cast-iron Spiralbauteiien with three circulation (spiral turns), whereby a relationship of approximately 6000:1 is preferred. Preferably both spiral construction units have 34, 36 the same Stirnplattenund point surface shapes, although it should be nevertheless possible, the entire axial surface shift only with a spiral construction unit, if desired, to plan. It is not critical, where the stages are arranged, since HE is so small, (it cannot with the naked eye not be determined), and because they are so small, can surfaces in speech as “generally evenly” is regarded. This gradated surface is very different proposals before-published by training in accordance with earlier, increase with which relatively large stages (with a stage sealing between the fitted spiral construction units) is intended, in order the pressure ratio of the machine.
In the enterprise a cold machine has a Spitzenoder face poetry to the outside extent extent, however an axial play within the center range when starting. If the machine reaches the operating temperature, the axial thermal stretch of the middle spiral turns reduces the axial play, until a good face sealing is reached, which is increased by the compressive prestress (as describe above). If no such initial axial surface shift is present, the thermal stretch in the center of the machine arranges the outside spiral turns to an axial separation, with which a loss of the good face sealing accompanies.
The available compressor is provided also with a mechanism for arranging sucking in gas the entering the housing directly for the inlet of the compressor. This facilitate in favourable way the separation from oil from the inlet sucking in medium, and it prevents the sucking in medium to take up within the housing dispersed oil. It prevents also the Ansaugges to take up unnecessarily warm ones of the engine which would lower the volume efficiency.
The direction sucking in building group 42 exhibits a lower Pral] element 200, which is formed out of a Metallblech and also in circumferential direction mi distance intended vertical flanges 202 is provided, those at the inner surface of the housing 12 is welded (S. Fig. 1, 4, 8 and 10). The P: alloder detour element 200 is arranged and with an open floor part 204 provided directly in relation to the inlet from the sucking in fitting 40, so that oil, which is carried in the entering sucking in gas, will then flow off the percussion element 200 to hit and into the compressor sump 49. Furthermore the building group exhibits a Kunststofformteil 206 with downward which is away, einstückig trained, arc-shaped channel part 208, itself into the gap between the top side of the percussion element 200 and the wall of the housing 12 extended, as best from Fig. 1 to be seen can. The top of the Kunststofformteiles 206 is generally tubularly (whereby it diverges radially inward), around gas, which flows along upward the channel part of 208, radially inward into the peripheral inlet of the interlinking spiral construction units 34, 36zuzuführen. The part of 208 becomes in circumferential direction by a notch 210, in which one is spread the attaching pin 168, and held in axial direction by a one-story formed latch 212, soft against the lower surface of the closing link 58 is pressed, as best in Fig.
1 is evident. The latch 212 links the part up of 206 springily with springs toward axial downward into the position shown. Those radially outside extending of the direction sucking in inlet channel is defined by the inner wall surface of the housing 12.
Energy is supplied to the compressor engine in usual way using one conventionally Klemmenblocks, which is protected by a geigneten cover 214 (S. also Fig. 3 and 4).
12 RKs 401,090 B it exist several possibilities, in order to reach the compressive prestress in axial direction, in order to strengthen the point poetry, as in the Fig. 18 and 19 is illustrated, whereby the parts shown there have similar functions as those parts, which are with that managing described first execution form, whereby for those parts also the same reference symbols ensprechenden each other are used.
In the modified execution form in accordance with Fig. 18 the axial pre-loading is reached by the use of compressed medium with an intermediate pressure, st the low) than outlet pressure.
This prevented that by planning a piston 300 at the top side of the spiral construction unit 36 managed, which slides in a cylinder chamber 66, however a conclusion element 302, that the top side of the piston is exposed to outlet pressure. Instead of whose flows discharge opening medium of the discharge opening 41 into a radial channel 304 in the piston 300, to which an enular groove attaches 306, which is located in direct connection with the openings 68 and the discharge opening chamber 72. Elastomers seals 308 and 310 plan the necessary sealing. Under an intermediate pressure standing compressed medium is drawn off the desired final bag, which is defined by the spiral turns, over a channel 312 to the top side of the Kolbene 300, where it exercises an axial reconducting strength on the not-circling spiral construction unit 36, in order to strengthen the face poetry.
In the execution form of Fig. 19 a combination of Auslaßund intermediate pressure for the axial face sealing pre-loading is used. In order to manage this, the closing link 58 is trained, in order to form two separate, coaxial cylinder chambers 314 and 316 planned with distance, and the top side of the spiral construction unit 36 is provided with coaxial pistons 318 and 320, which are arranged ever in one of the chambers 314 and 316. Under AusJaßdruck standing komprJmJertes medium is supplied to the top side of the piston 316 in exact same Weie as with the first execution form, and medium with intermediate pressure is supplied to the circular piston 318 by way of a channel 322, that extends of one been suitable arranged printing tapping place away. If desired the piston 320 can be exposed also to a second intermediate pressure instead of outlet pressure. Since the surfaces of the pistons and the places of the printing tapping can be changed, this execution form offers the best possibility, in order to achieve an optimal axial balancing for all desired operating conditions.
The printing tappings can be selected, in order to plan the desired pressure, and they can if are desired in such a way located that they experience different pressures in different places in the cycle, so that a medium desired pressure will receive can. The printing channels 312, 322 and such are preferably relatively small in the diameter, so that the current (and thus the pumping loss) is minimal and pressure changes and thus changes of force) to be absorbed.
Into the Fig. 20 to 33 is several angewandelte Aufhängungsoder of supporting system, i.e. mounting plates, illustrates, which serve 36 under permission of a limited axial movement for the attachment of the not-circling spiral construction unit, whereby they hold this spiral construction unit 36 against a radial and an extent movement. Each of these execution forms is in such a manner that it fastens the non-circling spiral construction unit 36 in its center, similarly as with the first execution form, in order in such a way to adjust pull-out torques on the spiral construction unit, which are caused by radial medium thrust forces. In all execution forms the upper surface of the flange 152 in the same geometrical position is as with the first execution form.
In accordance with Fig. a support is received to 20 and 21 with the help of a Federstahlringes 400, which is embodied at its outer circumference by pin 402 at an attachment ring 404, which is fastened to the inner wall of the housing 12; at its interior extent the Federstahlring 400 at the upper surface of the flange 152 embodied at the non-circling spiral construction unit 36 by means of attaching pins 406 is. The ring 400 is provided with several oblong openings 408 arranged under an angle, which are arranged over its full extending to permit in order to reduce the rigidity and limited axial avoiding of the non-circling spiral construction unit 36. Since the openings 408 are bent concerning the radial direction, a shift of the interior extent of the ring requires no stretching the ring relative to the outer circumference, but causes an extremely slight twist. This extremely limited rotating motion is however in such a manner insignificant that it should not cause a noticeable loss in the efficiency.
With the execution form in accordance with Fig. the non-circling spiral construction unit 36 extremely simply installed 22 by several L-shaped consoles 410 is, which are fastened with a thigh welded at the inner wall of the housing 12 and with the other thigh to the upper surface of the flange 152 with the help of a suitable attaching pin 412. The consoles 410 are in such a manner arranged that they can stretch slightly within their flexible borders, in order to take up axial deviations of the non-circling spiral construction unit 36.
13 RKs 401,090 B with the execution forms after Fig. the attachment mechanism several (three are shown) tubular parts of 414 exhibits 23 and 24, which are connected with a radially internal flange 416 at the top side of the flange 152 at the non-circling spiral construction unit 36 by suitable pins 418 and with a radially outside flange 420 by suitable pins 422 with a console 424, which is welded at the inner wall of the housing 12. Radial moving movements of the non-circling spiral construction unit 36 are prevented by the circumstance that several tubular parts are used, by which at least two not directly each other face.
In the execution form in accordance with the Fig. the non-circling is limited axially mobile supported for 25 and 26 by leaf springs 426 and 428 spiral construction unit 36, which with their outside ends to an attachment ring 430, which is welded at the inner wall of the housing 12, is fastened by suitable fastening parts or pin 432 and to the top side of the flange 152 in its center by geignete pins 434. The leaf springs can be arc-shaped either straight, as in the case of the feather/spring of the 426, or, as this is with the feather/spring 428 the case. Slight axial moving movements of the spiral construction unit 36 cause a stretching of the leaf springs within their flexible borders.
In the execution form after Fig. 27 and 28 a movement of of the non-circling is prevented spiral construction unit 36 in radial and in circumferential direction by several balls 436 (of those one is shown), whereby these balls sit closely in a cylindrical drilling, which by a cylindrical surface 437 at the inside extent range of an attachment ring 440, which is defined is welded at the inner wall of the housing 12, and by a cylinder surface 439, which to the radially outside extent extent of a flange 442 at the non-circling spiral construction unit 36 is formed, whereby the balls 436 in one level in the center between the Sfirnplattenf ächen} the SpJralbauteJ} e lie, for that already managing described reasons.
The execution form after the Fig. 29 and 30 that one is apparently identical after the Fig. 27 and 28, differs however thereby from this that instead of the balls several cylindrical roles of 444 are used, from which one is shown, and which are pressed within a rectangular slot into close seat, which by a surface 446 at the ring 440 and a surface 448 at the flange 442 is defined. Preferably the assembly ring 440 is sufficiently flexible, so that it can be stretched over the balls or roles, in order to link the arrangement up and to eliminate any unwanted play or a dead course.
In the execution form in accordance with Fig. the non-circling spiral construction unit 36 provided 31 with a centrically arranged flange 450 is, which has an axially which is reported hole 452, itself by it through extended. Within the hole 452 a pin 454 is adjustably arranged, which is closely to the body 30 fastened to its lower end. As from Fig. 31 to see it is, is possible a×iale deviations of the not-circling spiral construction unit against what deviations in circumferential direction or in radial direction are prevented. The execution form in accordance with Fig. 32 is equal to that one in accordance with Fig. 31 with the exception that the pin is adjustable 454. This is reached by that an increased hole 456 in a suitable flange at the body 30 is planned, and that the pin 454 with a supporting flange 458 and one is trained at the lower end existing thread section, which rises up by the hole 456 and screwed a thread mother on 460. If the pin 454 were brought exactly in position, the mother 460 is tightened, in order to embody the parts lasting in position.
In the execution form after Fig. the inner wall of the housing 12 with two beginnings 462 and 464 is provided 33, the precise worked on, radially inward turned even surfaces 466 and 468 has, which are arranged under a right angle relatively to each other. The flange 152 at the non-circling spiral construction unit 36 is provided with two entsprechenen beginnings, which one radially outward arranged even surface exhibit each 470 and/or 472, whereby these surfaces 470, 472 relatively to each other under a right angle run and against the surfaces 466, 468 rest. These beginnings and surfaces are precisely worked, in order to position the non-circling spiral construction unit 36 in the suitable radial and anglemoderate situation. In order to hold it in this situation, while a limited axial movement is made possible, an extremely rigid feather/spring is intended in form of one Betleville plain washer or such 474, which works between a beginning 476 to the Innentläche of the housing 12 and a beginning 478, which are fastened to the outer circumference of the flange 152. The feather/spring 484 exercises a strong initial tension strength on the not-circling spiral construction unit, in order to hold it against the surfaces 466 and 468 in position. These Kraft solffe somewhat more largely its than the maximum radial and rotating motion strength, which normally arise, in order to move the spiral construction unit from its seating position. The feather/spring 474 is preferably in such a manner positioned that ss the initial tension strength expenditure-experienced of it has same components in the direction of everyone of the beginnings 462 and 464 (i.e. its diametric field line represents a bisector concerning the two beginnings). As is the case for the preceding execution forms the beginnings and the point of attack of the feather/spring are essentially in the center between the Spiratbauteil and the disk surfaces intended, in order to adjust pull-out torques.
14 RKs 401,090 B with all execution forms in accordance with the Fig. an axial movement of the non-circling spiral construction unit 36 separation direction can being e.g. limited for 20 to 33 by any suitable means, like a mechanical attack, as it was described with the first execution form. A movement in the opposite direction is limited with one another naturally by the interference of the spiral construction units.
Patentansprü che machine, as compressor, of type of spiral restrictor, with two spiral construction units, which per a front plate with a sealing surface and a one on this arranged spiral coat, whose center axle stands, exhibits generally perpendicularly on the associated sealing surface and is movably stored at a stationary camp body of those the spiral construction unit relatively on the other hand circling, and which other spiral construction unit is axially springily with springs mobile supported, whereby the spiral construction units with their spiral coats interlink, in order in the enterprise, if itself the spiral construction unit induces circling to form between the spiral coats moving medium chambers whereby in each case the edge (face) of the spiral coat one of the spiral construction units in seals interference with the sealing surface of the other, one turned away from the associated sealing surface Spiral construction unit it stands, by the fact characterized that an axially flexible mounting plate (150, 160, 162, 152), which in a firm position concerning the camp body (30) is supported, with the other spiral construction unit (36) to its axialmobile storage in a place generally in the center between the levels of the two sealing surfaces (104, 117) connected is.
2. Machine according to requirement 1, by characterized that the other spiral construction unit (36) is held by the mounting plate (150, 160, 162, 152) against a rotating motion as well as radial movement relative to the axle of the circulation a of the spiral construction unit (34).
3. Machine according to requirement 1, by characterized that the mounting plate (150, 160, 162, 152) at several, in a common level is connected to lying points in the center between the two sealing surfaces (104, 117) in distance from each other with the other spiral construction unit (36).
4. Machine according to requirement 1, by characterized that the mounting plate at least one leaf spring (162; 426, 428) contains, which is flexible within their yield strengths in the case of normal axial deviations of the axially mobile other spiral construction unit (36).
Machine according to requirement 1, by characterized that the mounting plate contains standing back support surfaces at the camp body (30) and/or spiral construction unit (36) in sliding interference.
6. Machine according to requirement 5, by characterized that one of the back support surfaces is formed by a tap (454) and other by drilling (452), taking up adjustably the tap, (Fig. 31,32).
7. Machine according to requirement 6, by characterized that the tap (454) is adjustably fastened (Fig. 32).
8. Machine according to requirement 6 or 7, by characterized that tap (454) and drilling (452) have circular cross-section.
9. Machine according to requirement 1, characterized by an attack to the delimitation of the axial movement of the other spiral construction unit (36) away of the one, circling movable spiral construction unit (34) on a predetermined peak deviation.
10, machine according to requirement 9, by characterized that the peak deviation is sufficiently small fixed, so that the machine in the approach enterprise, when maximum shift can work.
11. Machine according to requirement 1, by characterized that the mounting plate contains at least a feather/spring (162), generally u-shaped in plan view, whose bar part is held relative to the camp body (30) in position and whose thigh close is connected to its ends with the other spiral construction unit (36). There is disclosed a scroll-type machine particularly suited for use as a refrigerant compressor and incorporating an improved suspension system for the non-orbiting scroll whereby the latter may be pressure biased for the purpose of augmenting tip sealing. The machine also has a modified wrap tip and end plate profile in order to enhance performance, as well as an improved lubrication system for the drive and a baffle arrangement to provide a directed suction inlet. The machine also has an Oldham coupling utilizing a novel ring element which is non-circular and provides for increased thrust-bearing size, or reduced machine size. There is also disclosed a method of manufacture of a scroll-type machine. Spiral construction unit 36 separation direction by any suitable means, like a mechanical attack, as it was described with the first execution form, being e.g. limited. A movement in the opposite direction is limited with one another naturally by the interference of the spiral construction units.
Patentansprü che machine, as compressor, of type of spiral restrictor, with two spiral construction units, which per a front plate with a sealing surface and a one on this arranged spiral coat, whose center axle stands, exhibits generally perpendicularly on the associated sealing surface and is movably stored at a stationary camp body of those the spiral construction unit relatively on the other hand circling, and which other spiral construction unit is axially springily with springs mobile supported, whereby the spiral construction units with their spiral coats interlink, in order in the enterprise, if itself the spiral construction unit induces circling to form between the spiral coats moving medium chambers whereby in each case the edge (face) of the spiral coat one of the spiral construction units in seals interference with the sealing surface of the other, one turned away from the associated sealing surface Spiral construction unit it stands, by the fact characterized that an axially flexible mounting plate (150, 160, 162, 152), which in a firm position concerning the camp body (30) is supported, with the other spiral construction unit (36) to its axialmobile storage in a place generally in the center between the levels of the two sealing surfaces (104, 117) connected is. 2. Machine according to requirement 1, by characterized that the other spiral construction unit (36) is held by the mounting plate (150, 160, 162, 152) against a rotating motion as well as radial movement relative to the axle of the circulation a of the spiral construction unit (34). 3. Machine according to requirement 1, by characterized that the mounting plate (150, 160, 162, 152) at several, in a common level is connected to lying points in the center between the two sealing surfaces (104, 117) in distance from each other with the other spiral construction unit (36). 4. Machine according to requirement 1, by characterized that the mounting plate at least one leaf spring (162; 426, 428) contains, which is flexible within their yield strengths in the case of normal axial deviations of the axially mobile other spiral construction unit (36).
Machine according to requirement 1, by characterized that the mounting plate contains standing back support surfaces at the camp body (30) and/or spiral construction unit (36) in sliding interference. 6. Machine according to requirement 5, by characterized that one of the back support surfaces by a tap (454) and other by the tap adjustably taking up drilling (452), 7. Machine according to requirement 6, by characterized that the tap (454) is adjustably fastened 8. Machine according to requirement 6 or 7, by characterized that tap (454) and drilling (452) have circular cross-section. 9. Machine according to requirement 1, characterized by an attack to the delimitation of the axial movement of the other spiral construction unit (36) away of the one, circling movable spiral construction unit (34) on a predetermined peak deviation.
10, machine according to requirement 9, by characterized that the peak deviation is sufficiently small fixed, so that the machine in the approach enterprise, when maximum shift can work. 11. Machine according to requirement 1, by characterized that the mounting plate contains at least a feather/spring (162), generally u-shaped in plan view, whose bar part is held relative to the camp body (30) in position and whose thigh close is connected to its ends with the other spiral construction unit (36).
RK 401,090 B 13.
26, machine according to requirement 1, by it characterized, of da3 the mounting plate a lock washer (400) contains, which is connected with its exterior relative to the camp body (30) held and with its inside with the other spiral construction unit (36).
Machine according to requirement 12, by characterized that the lock washer (400) possesses several openings (408), in order to increase its pliancy.
Machine according to requirement 13, by it characterized, there (] each opening (408) in plan view is oblong and under an angle concerning one is generally radially by the axles extending line arranged.
Machine after one of the requirements 1 to 14, by characterized that the feather/spring (162: 400) of spring steel consists.
Machine according to requirement 11, by characterized that the feather/spring (162) consists of flat spring steel.
Machine according to requirement 1, by characterized that a feather/spring (162), belonging to the mounting plate, is fastened to a generally even, transverserunning front surface to the camp body (30) of a belonging, axially extending Tragsäule (150).
Machine according to requirement 17, by characterized that the front surface of the Tragsäule (150) essentially lies in one level parallel to the levels of the Dichfflächen (104, 117).
Machine according to requirement 18, by characterized that the level of the front surface of the Tragsäule lies between the levels of the sealing surfaces (104, 117).
Machine according to requirement 17, by it characterized that the axially mobile other spiral construction unit (36) is equipped with a generally even mounting surface, at which gives the feather/spring (162) with a distant] is fastened.
Machine according to requirement 20, by characterized that the mounting surface lies approximately in the level of the front surface of the Tragsäule (150).
Machine according to requirement 20, by characterized that the front surface of the Tragsäule (150) has one generally perpendicularly to the thigh of the feather/spring (162) running edge (176), in order to facilitate a bending of the feather/spring (162) when minimum demand.
Machine according to requirement 22, by characterized that between the front surface of the Tragsäule (150) and the feather/spring (162) a relatively soft poetry (160) is arranged.
Machine according to requirement 23, by characterized that the poetry (160) has an edge, which essentially coincides with the edge (176) of the front surface of the Tragsäule (150).
Machine according to requirement 24, by characterized that the poetry (160) consists of a relatively soft metal.
Machine according to requirement 17, by characterized that the feather/spring (162) is held by an attack (164) on the front surface in position, whereby the attack (164) limits the axial movement of the other spiral construction unit (36) away from the one, circling for movable spiral construction unit (34) to a predetermined stroke.
Machine after one of the requirements 1 to 26, by characterized that the sealing surfaces (104, 117) is easily concave, whereby a part of everyone of the two sealing surfaces (104, 117) between the opposite flanks of the spiral coat is axially gradated trained if necessary, in order to define an easily concave surface.
RK 401,090 B machine after one of the requirements 1 to 27, by characterized that the edges of the spiral coats (35, 37) are easily concave.
Machine according to requirement 1, by characterized that the mounting plate contains several springy consoles (410), which are attached between a machine housing (12) and the axially mobile other spiral construction unit (36).
Machine according to requirement 29, by characterized that each console (410) is L-shaped, whereby a thigh to the housing (12) and the other thigh are fastened to the axially mobile other spiral construction unit (36).
Machine according to requirement 30, by characterized that each console (410) is flexible within their flexible borders during a normal axial movement of the axially mobile other spiral construction unit (36).
Machine according to requirement 1, by characterized that the mounting plate contains several tubing elements (414), which are connected ever with a flange (420) relative to the camp body held and with another flange (416) with the axially mobile other spiral construction unit (36).
34, machine according to requirement 32, by characterized that the flanges (416, 420) in a generally horizontal lateral plane it is arranged.
Machine according to requirement 32 or 33, by characterized that the tubing elements (410) are approximately around the axially mobile other spiral construction unit (36) arranged in circumferential direction in distances.
Machine according to requirement 34, by characterized that the tubing elements (410) one tubing part contain each with a center axle, which runs generally tangential to the axially mobile other spiral construction unit (36). 36. Machine according to requirement 35, by characterized that the tubing elements (410) with their axles include 180 ° deviating angles in pairs of 0 ° and/or. 37. Machine according to requirement 4, by characterized that the leaf spring is fastened centrically relative to the camp body (30) held and with their ends to the axially mobile other spiral construction unit (36). 38. Machine according to requirement 4, by characterized that the leaf spring (426, 428) is held centrically fastened to the axially mobile other spiral construction unit (36) and with their ends relative to the camp body (30). 39. Machine according to requirement 38, by characterized that the feather/spring (426) is oblong and in plan view relatively straight.
Machine according to requirement 38, by characterized that the feather/spring (428) is arc-shaped oblong and in plan view.
Machine according to requirement 1, by it characterized that the mounting plate contains several balls (436), ever in two each other opposite, axialrunning slots (437, 439) arranged it is, whereby a groove (437) is relative to the camp body (30) firm and the other groove (439) relative to the axially mobile other spiral construction unit (36) firm is.
Machine according to requirement 41, by characterized that a groove (437) is arranged in a ring (440), which the axially mobile other spiral construction unit (36) surrounds, to before-load and which is linked up, in order the balls (436) in the slots (437, 439).
Machine according to requirement 1, by it characterized that the mounting plate contains several roles (444), ever in two each other opposite, axially arranged slots (446, 448) arranged it is, of which one is relative to the camp body (30) firm and which is other one relative to axial mobile RK 401,090 B other spiral construction unit (36) firm.
Machine according to requirement 43, by characterized that the one groove (446) is arranged in a ring (440), which surrounds the other spiral construction unit (36), whereby the ring is linked up, in order to load the roles (444) in the slots.
Machine according to requirement 1, by characterized that the mounting plate contains at least two a×ial running guidance surfaces (466, 468), which are firm concerning the camp body, and that concerning the axially mobile other spiral construction unit (36) firm back support surfaces (470, 472) with these guidance surfaces (466, 468) stand in interference, whereby an initial tension mechanism (474) presses the back support surfaces (470, 472) in plant to the guidance surfaces (466, 468).
Machine according to requirement 45, by characterized that the guidance surfaces (466, 468) are evenly and radially inward turned.
Machine according to requirement 45 or 46, by characterized that the guidance surfaces (466, 468) in places are arranged in a distance according to a center angle of 90 ".
Machine according to requirement thereby 47. characterized that the initial tension mechanism (474) exercises a Kraft toward a line, which halves the angle between the guidance surfaces (466, 468).
Machine according to requirement 4, by characterized that several leaf springs are arranged in circumferential direction in distance from each other around the axially mobile other spiral construction unit (36) around.
Machine according to requirement 4, by characterized that the mounting plate contains a pair of leaf springs (426, 428), which are arranged at opposite sides of the axially mobile other spiral construction unit (36).
Machine according to requirement 1, with which the axially mobile other spiral construction unit is linked up to the one by fluid printing against spiralbuilding for sale, characterized by a cylinder chamber (66), attached in a firm situation concerning the camp body (30), in which a piston (178), connected with the axially mobile other spiral construction unit (36), in a direction essentially parallel to the axles is adjustably taken up, and which under pressure set fluid is supplyable.
Machine according to requirement 51, thereby characterized that by the side panels of the piston (300) and/or the cylinder chamber (66) generally crosswise channels (304 to lead 68) extend, in order pumped medium with outlet pressure from the machine and elastomers a ring seal (308, 310) between the piston and the cylinder chamber in axially facing sides of the channel is intended.
Machine according to requirement 51 or 52, characterized by a further cylinder chamber (314), attached concerning the camp body in a firm situation, in which a further piston (318), connected with the axially mobile other spiral construction unit (36), in a direction essentially parallel to the axle is adjustably arranged, and which under pressure set medium is supplyable.
Machine according to requirement 53, by characterized that a Zyinderkammer (316) with outlet pressure is subjectable and the other cylinder chamber (314) with a pressure between the intake pressure and outlet pressure.
Machine according to requirement 54, by characterized that the first mentioned cylinder chamber (316) is that cylinder chamber, which is subjectable with outlet pressure.
Machine according to requirement 53, by characterized that both cylinder chambers (314. 316) with a pressure between outlet pressure and intake pressure are subjectable.
Machine according to requirement 1, with which the two spiral construction units are against each other linked up by fluid printing, characterized by two fluid chambers subjected with different pressures (314, 316), their pressures together the two spiral construction units (34, 36) one on the other too generally in RK 401,090 B direction parallel to the axle of the circulation the one, circling spiral construction unit (34) link up, in order to strengthen the seals effect.
Machine according to requirement 57, by characterized that one of the fluid chambers (316) with outlet pressure is subjectable.
Machine according to requirement 57 or 58, by characterized that one of the fluid chambers (314) with a pressure between the intake pressure is subjectable and dern outlet pressure.
Machine after one of the requirements 57 to 59, by it characterized that at least one of the fluid chambers, preferably both fluid chambers, Üe) one concerning the camp body (30) firm cylinder chamber (314, 316) is, in some piston connected with one of the spiral construction units (36) (318, 320) is generally axially adjustably arranged.
Machine according to requirement 60, by characterized that the two pistons (318, 320) are connected with the other, axially mobile spiral construction unit (36).
Machine according to requirement 57, by characterized that an axially directed surface is subjectable one of the spiral construction units (36) with the two pressures.
Machine according to requirement 62, by characterized that each fluid chamber (314, 316) is defined partially by a e×ponierte surface of the Spiralbaüteils (36).
Machine according to requirement 63, by characterized that between the Ftuidkammern (314, 316) elastomers a ring seal is arranged.
Machine according to requirement 53 more eder 57, by it characterized, da8 in one of the spiral construction units (36) a channel (322) for leading fluid from one of the medium chambers with a pressure between intake pressure and outlet pressure into one (314) the cylinder chambers (314, 316) is intended.
Machine according to requirement 65, by characterized that further a channel (312) is intended for leading fluid with outlet pressure into the other cylinder chamber (316), preferably in the same spiral construction unit (36) as the first mentioned channel (322).
Machine after one of the requirements 53 to 56 or 60 to 64, by characterized that the cylinder chambers (314, 316) and the pistons (318, 320) are and are formed the cylinder chambers generally concentrically to each other by a gradated cylinder wall with two different inside diameters, whereby the further piston (318) is formed by a Ringschulter at the first mentioned piston (320), which is enclosed by the diameter-smaller part of the cylinder wall, against what the further piston (318) is surrounded by the diameter-larger part of the cylinder wall.
Machine after one of the requirements 1 to 67, with an engine, a propelable a crankshaft of this Mator around an essentially vertical axle as well as a source of lubricant, thereby characterized that in the circling spiral construction unit (34) a circle-cylindrical axial drilling (124) is appropriate, in which a driver can (122) is stored, which has for its part a further cylindrical axial drilling, in which a crankpin (126) of the crankshaft (28) is taken up, whereby the spiral construction unit (34) is shiftable with circulating crankshaft into a circulation, and that in the crankshaft (28) an oil supply channel is intended, that lubricating oil of the source of oil (49) to the top side of the crankpin (126) leads, of where the lubricating oil is outward pressed with circulating crankshaft by the centrifugal energy, whereby in the top side of the driver can (122) a recess (131) is trained as collecting lubricating oil, in order to supply this to the axial drillings for lubrication.
RK 401,090 B machine according to requirement 69, by it characterized that the even surface (128) runs axially from the lower surface to the top side of the driver can (122), machine according to requirement 70, by characterized that the further axial drilling (124) exhibits a cross section out of round, whereby an oil flow gap between the driver can (122) and the crankpin (126) is defined, which are located in connection with the recess (131).
Machine according to requirement 71, by characterized that the further axial drilling (124) has generally oval form and the crankpin (126) is generally circular.
Machine according to requirement 72, by characterized that the further axial drilling (124) and the crankpin (126) exhibit ever an even surface, which are located with one another in drive connection.
Machine according to requirement 68, by it characterized that the recess (131) is a groove in the upper surface of the driver can (122), between the further axial drilling (124) and the outside surface of the can extends.
Machine after one of the requirements 68 to 74, by it characterized, there the Winkelpcsition of the recess (131) relatively too those of the oil supply channel (94) in direction of rotation of the crankshaft (28) easily hastens after.
Machine after one of the requirements 68 to 75, by characterized that in the lower part of the crankshaft (28) an oil pump is arranged, which is attached in a sump (49), forming the source of oil, and lubricating oil from this sump supplies to the oil supply channel (94) with turning crankshaft (28).
Machine after one of the requirements 1 to 76, by characterized that the camp body (30) has around the machine axle a generally circular a part and relative to the protection of of the circling spiral construction unit (34) against a turn to the camp body a cross claw clutch (OldhamKupplung) is intended, whereby at the camp body (30) generally diametrically aligned first storage spaces are defined and at the circling spiral construction unit (34) generally trained second storage spaces, rectangular to the first storage spaces, and a crosswise arranged ring (38) essentially the circular camp part of the body surround, whereby the internal Umlangsf] äche of the ring a form deviating from the circle have and the ring at opposite sides (142, 144) Circular arcs with same radius (R) covered, whose center of curvature (xth y) in a predetermined distance lies apart, and whereby essentially straight parts (146, 148) connect the sheets, which ring (38) further at a side a first pair of wedges (134) in LINE-poor sliding interference with the first mentioned storage spaces exhibits and at the opposite side a second pair of wedges (138) in linear sliding interference with the storage spaces secondarymentioned. 78. Machine according to requirement 77, by the fact characterized that the radius (R) equal the radius of the circular camp part of the body a predetermined minimum play is additional. 79. Machine according to requirement 78, by characterized that the circular camp part of the body defines an even transverserunning thrust bearing surface, which supports the circling spiral construction unit (34) sliding.
Machine after one of the requirements 77 to 79, by characterized that the predetermined distance is in a direction, which runs generally parallel to the diameter, on which the first mentioned storage spaces is to each other aligned. 81. Machine after one of the requirements 77 to 80, by characterized that the predetermined distance is equal to dern double ones of the orbital radius of the circling spiral construction unit (34). 82. Machine after one of the requirements 77 to 81, by characterized that the first mentioned storage spaces are formed by a pair of radial slots (136) in the camp body (30), which aut at each other diametrically facing sides, referred the axle, is arranged.
RK 401,090 B RST machine after one of the requirements 77 to 82, by characterized that the second storage spaces are formed by a pair of radial slots (140) in the circling spiral construction unit (34), which are intended concerning the axle each other diametrically facing sides on.
Machine after one of the requirements 1 to 83, by characterized since for training as hermetic compressor a final housing (12) with a medium inlet port (40) is intended in a wall, whereby in distance from this inlet port (40) a compressor medium inlet is intended that to the housing (12) in overlap to the inlet port (40) a guidance wall (200) is fastened, underneath the inlet port (40) the opening limited, which serves as drain for oil carried in the inlet medium, which separates itself with the impact the guidance wall (200), and that itself of the guidance wall (200) upward an axially extending passage defining construction unit (206) extended, in order to keep inlet medium, which is addressed to the opposite end of the construction unit into the compressor inlet supplied.
Machine according to requirement 84, by characterized that the passage is partly limited by the plastic part (206) and partly by the housing (12).
Machine according to requirement 84, by characterized that the lower opening between the guidance wall (200) and the housing (12} is defined.
Machine according to requirement 84, by characterized that at the construction unit (206) a flexible latch (212) is angeformt, which is pressed against a counter bearing surface within the housing (12), in order to press the construction unit in position.