EP0284774B1 - Machine à déplacement du type à spirale - Google Patents

Machine à déplacement du type à spirale Download PDF

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Publication number
EP0284774B1
EP0284774B1 EP88102699A EP88102699A EP0284774B1 EP 0284774 B1 EP0284774 B1 EP 0284774B1 EP 88102699 A EP88102699 A EP 88102699A EP 88102699 A EP88102699 A EP 88102699A EP 0284774 B1 EP0284774 B1 EP 0284774B1
Authority
EP
European Patent Office
Prior art keywords
feed
housing
web
disc
disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88102699A
Other languages
German (de)
English (en)
Other versions
EP0284774A1 (fr
Inventor
Roland Kolb
Jürg Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CESSIONE;AGINFOR AG FUER INDUSTRIELLE FORSCHUNG
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT88102699T priority Critical patent/ATE59880T1/de
Publication of EP0284774A1 publication Critical patent/EP0284774A1/fr
Application granted granted Critical
Publication of EP0284774B1 publication Critical patent/EP0284774B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F01C1/0269—Details concerning the involute wraps
    • F01C1/0276—Different wall heights

Definitions

  • Displacement machines based on the spiral principle are known for example from DE-C3-2 603 462 or DE-A-3 313 000. These machines are characterized by an almost pulsation-free conveyance of the gaseous working medium, which consists for example of air or an air / fuel mixture, and can therefore also be used with advantage for charging purposes of internal combustion engines.
  • the gaseous working medium which consists for example of air or an air / fuel mixture
  • Displacement machines based on the spiral principle are known for example from DE-C3-2 603 462 or DE-A-3 313 000. These machines are characterized by an almost pulsation-free conveyance of the gaseous working medium, which consists for example of air or an air / fuel mixture, and can therefore also be used with advantage for charging purposes of internal combustion engines.
  • the gaseous working medium which consists for example of air or an air / fuel mixture
  • the displacement bodies are formed by spiral strips, which are held essentially vertically on the disk-shaped rotor and have a relatively large axial length in relation to their thickness. Similar conditions exist on the side of the fixed housing, where spiral, strip-like webs also remain between the conveying chambers and have a relatively large length in the axial and circumferential directions in relation to the wall thickness.
  • a precise rolling of a displacement body according to the spiral principle by a translatory circular movement is achieved by a double crank drive, as is known, for example, from the already mentioned DE-A-3 313 000 and in which one crank drives and the second crank guides.
  • the invention seeks to remedy this. It is based on the task of configuring a displacement machine of the type mentioned at the outset in such a way that it has the advantages of the second type, i.e. is equipped with a small diameter and thus low weight and volume.
  • the invention is based on the idea that, on the occasion of the circular movement, only those conveying spaces in which the same pressure prevails communicate with one another.
  • the seal is effective at different pressures in the adjacent rooms.
  • this principle is only possible if at least two spirals are nested.
  • FIGS. 1 and 2 For the sake of clarity, the machine is shown in the disassembled state in FIGS. 1 and 2.
  • the drive is not shown because it is not essential to the invention; it is only hinted at in Fig. 1.
  • the rotor of the machine as a whole is designated by 1 in FIG. 2.
  • Arranged on both sides of the disk 2 are two, displaced by 180 ° to each other, spirally extending displacement body. These are strips 3, 3 'which are held vertically on the pane 2.
  • the spirals themselves are formed from a plurality of circular arcs adjoining one another.
  • the entry-side end of the strips 3, 3 ' is each reinforced. 4 with the hub is designated with which the disc 2 is mounted on a bearing, not shown.
  • the bearing itself sits on an eccentric disc, which in turn is part of the drive shaft.
  • FIG. 1 shows the lower housing half 7 of the machine housing, which is composed of two halves and is connected to one another via fastening eyes 8 for receiving screw connections.
  • 9 symbolizes the holder for the drive shaft, 10 the holder for the guide shaft.
  • 11 and 11 ' denote the two delivery spaces, each offset by 180 °, which are worked into the two housing halves in the manner of a spiral slot. They each run from an inlet 12, 12 'arranged on the outer circumference of the spiral in the housing to an outlet 13 provided in the interior of the housing and common to both delivery spaces. They are essentially parallel
  • the drive and the guide of the rotor 1 are provided by the two spaced-apart eccentric arrangements (4.9 and 5.10, respectively).
  • the two eccentric arrangements are synchronized with precise angles by means of an indicated toothed belt drive 16. This double eccentric drive ensures that all points of the rotor disc and thus also all points of the two strips 3 and 3 'perform a circular displacement movement.
  • the working medium results in crescent-shaped working medium on both sides Closing workspaces that are moved during the drive of the rotor disk through the delivery chambers in the direction of the outlet. The volumes of these working spaces are reduced and the pressure of the working fluid is increased accordingly.
  • this transition is now designed as a circular shoulder 19, 19 'with the radius R1.
  • the counter surface on the disk 2 is provided with a corresponding circular arc-shaped recess 20, 20 ', the radius R2 of this recess corresponding to the eccentricity e + radius R1.
  • 4 to 7 show how these paragraphs 19, 19 'cooperate with the circular-arc-shaped recesses 20, 20' on the occasion of machine operation in order to form a sealing line 21.
  • the suction in the outer delivery chamber 11 has just ended.
  • the strip 3 lies (not shown) on both the inlet 12 and the outlet 13 on the outer cylinder wall 14.
  • the suction process in the inner delivery chamber 11'i has ended, i.e. the strip 3 'abuts the inner cylinder wall 15' on the inlet and outlet sides. Since the conveying process resp. Depending on the spiral configuration, the compression process begins in the crescent-shaped, closed work spaces, sealing at point A is necessary so that the conveyed medium cannot escape into the inlet 12 '. On the other hand, this is not necessary since both the inner delivery space 11i and the outer delivery space 11'a to their respective inlets 12 and. 12 'are open.
  • the 270 ° angular position shows the permanent seal in A 'and the unnecessary seal in the inlet 12', since there both the inner and the outer delivery spaces open to their inlets and there is pressure equality.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Screw Conveyors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Supercharger (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Dry Shavers And Clippers (AREA)
  • Crushing And Grinding (AREA)

Claims (2)

1. Machine volumétrique pour des fluides compressibles, avec quatre espaces de transport disposés dans une enveloppe fixe en deux parties,
-dans laquelle chaque moitié d'enveloppe (7) présente deux espaces de transport (11, 11') décalés d'environ 180° l'un par rapport à l'autre et s'étendant en spirale depuis une entrée (12, 12') jusqu'à une sortie (13),
-et dans laquelle à chaque espace de transport est associé un corps de déplacement engagé dans le espace de transport, qui est, sous la forme d'une nervure en spirale (3,3'), maintenu perpendiculairement à un disque (2) entraîne excentriquement par rapport à l'enveloppe,
-dans laquelle il est prévu un second montage d'excentrique de guidage (5, 10) disposé à distance du premier montage d'excentrique d'entraînement (4, 9), pour guider le rotor dans l'enveloppe,
-dans laquelle la paroi (17, respectivement 17') avec le flanc radialement extérieur (14, respectivement 14') des espaces de transport (11, respectivement 11') se prolonge, dans la région de la partie d'entrée (12', respectivement 12) du second espace de transport (11', respectivement 11) décalé d'environ 180°, en une paroi (18', respectivement 18) avec le flanc intérieur (15', respectivement 15) de ce second espace de transport (11', respectivement 11), caractérisée en ce que
-le disque (2) se termine radialement par les nervures (3, 3') et ne pénètre dans l'enveloppe qu'à partir de la région d'entrée (12, respectivement 12') des espaces de transport jusqu'à leur sortie,
-c'est pourquoi seules les portions de paroi (18, 18') des espaces de transport, qui forment des flancs aussi bien intérieurs qu'extérieurs (15, 15' respectivement 14, 14') des espaces de transport sont réduites en hauteurde la valeur de l'épaisseur du disque dans une moitié d'enveloppe (7), et que la jonction entre une portion de paroi extérieure surélevée (17, 17') et une portion de paroi intérieure abaissée (18, 18') a la forme d'un talon circulaire (19, 19'),
-et dans lequel, pendant le fonctionnement de la machine au cours des périodes pendant lesquelles des pressions différentes règnentdans des espaces de transport radialement voisins (11, 11'), ce talon circulaire (19, 19') coopère avec un évidement (20, 20') en arc de cercle du disque (2) pourformer une ligne d'étanchéité (21) s'étendant sur la hauteur du talon.
2. Machine volumétrique suivant la revendication 1, caractérisée en ce que l'évidement (20,20') présente un rayon (R2) qui est adapté à la valeur de l'excentricité (e)+la valeur du rayon (Ri) du talon (19, 19').
EP88102699A 1987-03-24 1988-02-24 Machine à déplacement du type à spirale Expired - Lifetime EP0284774B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102699T ATE59880T1 (de) 1987-03-24 1988-02-24 Verdraengermaschine nach dem spiralprinzip.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1108/87 1987-03-24
CH1108/87A CH673874A5 (fr) 1987-03-24 1987-03-24

Publications (2)

Publication Number Publication Date
EP0284774A1 EP0284774A1 (fr) 1988-10-05
EP0284774B1 true EP0284774B1 (fr) 1991-01-09

Family

ID=4202679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102699A Expired - Lifetime EP0284774B1 (fr) 1987-03-24 1988-02-24 Machine à déplacement du type à spirale

Country Status (8)

Country Link
US (1) US4861244A (fr)
EP (1) EP0284774B1 (fr)
JP (1) JP2545432B2 (fr)
AT (1) ATE59880T1 (fr)
BR (1) BR8801295A (fr)
CH (1) CH673874A5 (fr)
DE (1) DE3861482D1 (fr)
ES (1) ES2023227B3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673680A5 (fr) 1987-12-21 1990-03-30 Bbc Brown Boveri & Cie
US5171140A (en) * 1990-10-19 1992-12-15 Volkswagen Ag Spiral displacement machine with angularly offset spiral vanes
EP0545188B1 (fr) * 1991-12-05 1996-03-20 AGINFOR AG für industrielle Forschung Machine de déplacement de fluide de type à spirale
EP0547491A1 (fr) * 1991-12-16 1993-06-23 Asea Brown Boveri Ag Machine de déplacement de fluide du type à spirale
US5222882A (en) * 1992-02-20 1993-06-29 Arthur D. Little, Inc. Tip seal supporting structure for a scroll fluid device
DE4207984A1 (de) * 1992-03-13 1993-09-16 Asea Brown Boveri Verdraengermaschine nach dem spiralprinzip
US5616015A (en) * 1995-06-07 1997-04-01 Varian Associates, Inc. High displacement rate, scroll-type, fluid handling apparatus
CN1082146C (zh) * 1995-08-31 2002-04-03 三菱重工业株式会社 涡旋型流体机械
DE59802216D1 (de) * 1997-08-26 2002-01-10 Crt Common Rail Tech Ag Spiralverdrängermaschine für kompressible Medien
ATE229612T1 (de) * 1997-08-26 2002-12-15 Crt Common Rail Tech Ag Spiralverdrängermaschine für kompressible medien
WO2001098662A1 (fr) * 2000-06-22 2001-12-27 Mitsubishi Heavy Industries, Ltd. Compresseur a spirale
US6364643B1 (en) * 2000-11-10 2002-04-02 Scroll Technologies Scroll compressor with dual suction passages which merge into suction path
US8425211B2 (en) 2007-08-22 2013-04-23 Spinnler Engineering Positive displacement machine according to the spiral principle
DE102007043674B4 (de) * 2007-09-13 2009-11-12 Handtmann Systemtechnik Gmbh & Co. Kg Spiralverdichter mit Doppelspirale

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1502080A (fr) * 1966-10-06 1967-11-18 Appareil volumétrique tel que pompe ou analogue à cycle de translation circulaire
CH586348A5 (fr) * 1975-02-07 1977-03-31 Aginfor Ag
DE3107231A1 (de) * 1981-02-26 1982-09-02 Volkswagenwerk Ag, 3180 Wolfsburg Verdraengermaschine fuer kompressible medien
JPS6037320B2 (ja) * 1981-10-12 1985-08-26 サンデン株式会社 スクロ−ル型圧縮機
DE3141525A1 (de) * 1981-10-20 1983-05-11 Volkswagenwerk Ag, 3180 Wolfsburg Verdraengermaschine fuer kompressible medien
DE3231756C2 (de) * 1982-08-26 1985-08-01 Pierburg Gmbh & Co Kg, 4040 Neuss Rotationskolbenmaschine für Fluide
US4477238A (en) * 1983-02-23 1984-10-16 Sanden Corporation Scroll type compressor with wrap portions of different axial heights
DE3313000A1 (de) * 1983-04-12 1984-10-18 Volkswagenwerk Ag, 3180 Wolfsburg Verdraengermaschine fuer kompressible medien
DE3407939C1 (de) * 1984-03-03 1985-07-18 Pierburg Gmbh & Co Kg, 4040 Neuss Rotationskolbenmaschine fuer Fluide
DE8511707U1 (de) * 1985-04-19 1986-02-20 Pierburg Gmbh & Co Kg, 4040 Neuss Rotationskolbenmaschine

Also Published As

Publication number Publication date
JP2545432B2 (ja) 1996-10-16
BR8801295A (pt) 1988-10-25
DE3861482D1 (de) 1991-02-14
US4861244A (en) 1989-08-29
JPH01249973A (ja) 1989-10-05
EP0284774A1 (fr) 1988-10-05
ES2023227B3 (es) 1992-01-01
CH673874A5 (fr) 1990-04-12
ATE59880T1 (de) 1991-01-15

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