EP0321781B1 - Verdrängermaschine nach dem Spiralprinzip - Google Patents

Verdrängermaschine nach dem Spiralprinzip Download PDF

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Publication number
EP0321781B1
EP0321781B1 EP88120414A EP88120414A EP0321781B1 EP 0321781 B1 EP0321781 B1 EP 0321781B1 EP 88120414 A EP88120414 A EP 88120414A EP 88120414 A EP88120414 A EP 88120414A EP 0321781 B1 EP0321781 B1 EP 0321781B1
Authority
EP
European Patent Office
Prior art keywords
rotor
housing
spiral
delivery
shaped
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
EP88120414A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0321781A1 (de
Inventor
Fritz Spinnler
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.)
BBC Brown Boveri AG Switzerland
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 AT88120414T priority Critical patent/ATE72878T1/de
Publication of EP0321781A1 publication Critical patent/EP0321781A1/de
Application granted granted Critical
Publication of EP0321781B1 publication Critical patent/EP0321781B1/de
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
    • F01C1/0215—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 where only one member is moving
    • F01C1/0223—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 where only one member is moving with symmetrical double wraps

Definitions

  • the invention relates to a positive displacement machine for compressible media with at least four conveying spaces arranged in a fixed housing, with four conveying spaces, each housing half having two conveying spaces which are offset from one another by approximately 180.degree. And spiraling from an inlet to an outlet, and wherein each conveying space is an in is assigned to this engaging displacement body, which is held as a spiral bar vertically on a disc-shaped rotor which can be driven eccentrically with respect to the housing, for guiding it in the housing a second guide eccentric arrangement arranged at a distance from a first drive eccentric arrangement is provided, with the flexible absorption of any length differences between the delivery space and displacement body a compensating means is provided on the rotor.
  • Displacement machines based on the spiral principle are known, for example, from DE-C-2 603 462. These machines are characterized by an almost pulsation-free conveyance of the consisting of air or an air-fuel mixture of gaseous working media and can therefore also be used with advantage for charging purposes of internal combustion engines.
  • a displacement machine working as a compressor several approximately crescent-shaped working spaces are trapped along the conveying chamber between the spiral-shaped displacer body and the two cylinder walls of the conveying chamber due to different curvature of the spiral shapes, which move from a working medium inlet through the conveying chamber to a working medium outlet , their volume is constantly reduced and the pressure of the working fluid is increased accordingly.
  • 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 displacer according to the spiral principle by a translatory circular movement is achieved by a double crank drive, as is known for example from DE-A-3 230 979 and in which one crank drives and the second crank guides.
  • this known solution provides a transfer member which can be shifted in length, namely in the direction of the connecting line of the points of attack.
  • This transmission member consists of a holding member which is adjustably held in the guide arrangement of the rotor, which can be a sliding block which can be displaced in a parallel guide.
  • the parallel guide comprises one of the two bearings of the guide arrangement, via which a possible compensation of expansion differences can take place.
  • a bearing arrangement provided with an elastic bedding is provided on at least one of the points of attack, preferably at the point of application of the guide device .
  • This elastic bedding can be formed, for example, by a rubber-elastic ring which sits between the outer bearing ring and the bearing eye.
  • the object on which the invention is based is to provide, in a displacement machine of the type mentioned at the outset, a further possibility for accommodating changes in length occurring between two points of attack, which is as simple as possible and brings about an automatic compensation.
  • FIGS. 1 and 2 For the sake of clarity, the machine is shown in the disassembled state in FIGS. 1 and 2.
  • the rotor of the machine is designated as a whole by 1.
  • Arranged on both sides of the disk 2 are two, displaced by 180 ° to each other, spirally extending displacement body. It is strips 3.3 ', which are held vertically on the disc 2.
  • the spirals themselves are formed from a plurality of circular arcs adjoining one another. Due to the large ratio mentioned at the beginning between the axial length to the wall thickness (Fig. 3), 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 roller bearing 22.
  • the bearing itself sits on an eccentric disk 23, which in turn is part of the drive shaft 24.
  • Fig. 1 the housing half 7 shown in Fig. 3 on the left of two halves (7,7 ') composed, via fastening eyes 8 for receiving screw connections interconnected machine housing is shown.
  • 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 incorporated in the manner of a spiral slot in the two housing halves. 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 housing interior and common to both delivery spaces 'On, which in the present case, like the displacement body of the disc 2, comprise a spiral of approximately 360 °. Between these cylinder walls engage the displacer 3,3 ', the curvature of which is dimensioned such that the strips almost touch the inner and outer cylinder walls of the housing at several, for example at two points.
  • the drive and the guide of the rotor 1 are provided by the two spaced-apart eccentric arrangements (23, 24 and 26, 27, respectively).
  • the two eccentric arrangements are synchronized by a toothed belt drive 16 with precise angles. This double eccentric drive ensures that all points of the rotor disc and thus all points of the two strips 3 and 3 'perform a circular displacement movement.
  • crescent-shaped work spaces enclosing the working medium result on both sides of the strips, which are displaced by the delivery chambers during the drive of the rotor disk in the direction of the outlet .
  • the volumes of these working spaces are reduced and the pressure of the working fluid is increased accordingly.
  • Fig. 1 shows that the disc 2 - apart from the radially projecting eye 5 - closes radially with the strips 3.3 '.
  • the disk has to penetrate at least one half of the housing in the radial direction in the area of the inlets 12, 12 '. In the present case, this is done on the housing half 7 shown on the left in FIG. 3.
  • their inner webs 18, 18 ' are opposite the outer ones Web 17.17 'lowered by the amount of the slice thickness.
  • This measure has the advantage that in this housing half only on the inner webs 18, 18 'sealing strips are to be arranged, which seal the delivery spaces 11, 11' against the disk 2 against each other up to the outlet.
  • this transition is now formed as a circular shoulder 19,19 'with the radius R1.
  • the counter surface on the disc 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.
  • the guide eye 5 is connected to the rotor 1 via a rib 29.
  • the rib 29 extends tangentially to the spiral. It is connected to the inlet end of the spiral strip 3.
  • Fig. 4 it is shown as a one-piece rib made with the rotor. Its width preferably corresponds to the width of the guide eye 5; its thickness is chosen so that the guide eye is elastic in the radial direction.
  • the rib 29 in which the rib 29 is made of the same material as the rotor, the rib can also be manufactured separately with or without a guide eye, for example from a material that is particularly suitable for the loads that occur.
  • the rib can be connected to the runner in any suitable manner, and in particular a joint arrangement can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Screw Conveyors (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Catching Or Destruction (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP88120414A 1987-12-21 1988-12-07 Verdrängermaschine nach dem Spiralprinzip Expired - Lifetime EP0321781B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120414T ATE72878T1 (de) 1987-12-21 1988-12-07 Verdraengermaschine nach dem spiralprinzip.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4982/87 1987-12-21
CH4982/87A CH673680A5 (ja) 1987-12-21 1987-12-21

Publications (2)

Publication Number Publication Date
EP0321781A1 EP0321781A1 (de) 1989-06-28
EP0321781B1 true EP0321781B1 (de) 1992-02-26

Family

ID=4285903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120414A Expired - Lifetime EP0321781B1 (de) 1987-12-21 1988-12-07 Verdrängermaschine nach dem Spiralprinzip

Country Status (7)

Country Link
US (1) US4950138A (ja)
EP (1) EP0321781B1 (ja)
JP (1) JP2758178B2 (ja)
AT (1) ATE72878T1 (ja)
CH (1) CH673680A5 (ja)
DE (1) DE3868609D1 (ja)
ES (1) ES2028978T3 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463370A3 (en) * 1990-05-30 1993-08-18 Volkswagen Ag Eccentric drive for a rotating mass
DE59206416D1 (de) * 1991-12-05 1996-07-04 Aginfor Ag Verdrängermaschine nach dem Spiralprinzip
DE59205758D1 (de) * 1991-12-05 1996-04-25 Aginfor Ag Verdrängermaschine nach dem Spiralprinzip
EP0547491A1 (de) * 1991-12-16 1993-06-23 Asea Brown Boveri Ag Verdrängermaschine nach dem Spiralprinzip
DE4207984A1 (de) * 1992-03-13 1993-09-16 Asea Brown Boveri Verdraengermaschine nach dem spiralprinzip
DE59806600D1 (de) * 1997-08-26 2003-01-23 Crt Common Rail Tech Ag Spiralverdrängermaschine für kompressible Medien
ES2164398T3 (es) * 1997-08-26 2002-02-16 Crt Common Rail Tech Ag Maquinas de desplazamiento espiral para medios compresibles.
US6364643B1 (en) * 2000-11-10 2002-04-02 Scroll Technologies Scroll compressor with dual suction passages which merge into suction path
JP2006097531A (ja) * 2004-09-29 2006-04-13 Anest Iwata Corp スクロール流体機械における旋回スクロール
JP4969878B2 (ja) * 2006-03-13 2012-07-04 アネスト岩田株式会社 スクロール流体機械
DE102007043674B4 (de) * 2007-09-13 2009-11-12 Handtmann Systemtechnik Gmbh & Co. Kg Spiralverdichter mit Doppelspirale
DE102011103165A1 (de) * 2010-07-02 2012-01-05 Handtmann Systemtechnik Gmbh & Co. Kg Ladevorrichtung zur Verdichtung von Ladeluft für einen Verbrennungsmotor

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB150363A (en) * 1918-01-16 1920-09-09 Frederick George James Butler Improvements in or relating to rotary internal-combustion engines, compressors and the like
FR585340A (fr) * 1923-08-08 1925-02-25 Machine à fluide
CH586348A5 (ja) * 1975-02-07 1977-03-31 Aginfor Ag
JPS5638888A (en) * 1979-09-07 1981-04-14 Hitachi Ltd Pattern forming method
DE3107231A1 (de) * 1981-02-26 1982-09-02 Volkswagenwerk Ag, 3180 Wolfsburg Verdraengermaschine fuer kompressible medien
DE3230979A1 (de) * 1982-08-20 1984-02-23 Volkswagen Ag Verdraengermaschine fuer kompressible medien
DE3231754C2 (de) * 1982-08-26 1986-01-02 Pierburg Gmbh & Co Kg, 4040 Neuss Rotationskolbenmaschine für kompressible Medien
DE3231756C2 (de) * 1982-08-26 1985-08-01 Pierburg Gmbh & Co Kg, 4040 Neuss Rotationskolbenmaschine für Fluide
DE3538522C2 (de) * 1985-06-04 1994-05-19 Volkswagen Ag Exzenterantrieb für eine Drehmasse
JPS6278494A (ja) * 1985-10-02 1987-04-10 Hitachi Ltd スクロ−ル流体機械
JPS62186084A (ja) * 1986-02-12 1987-08-14 Mitsubishi Electric Corp スクロ−ル圧縮機
JPS62210276A (ja) * 1986-03-07 1987-09-16 Mitsubishi Electric Corp スクロ−ル圧縮機
CH673874A5 (ja) 1987-03-24 1990-04-12 Bbc Brown Boveri & Cie
JPH05309482A (ja) * 1992-05-08 1993-11-22 Komatsu Ltd レーザ刻印装置

Also Published As

Publication number Publication date
JP2758178B2 (ja) 1998-05-28
CH673680A5 (ja) 1990-03-30
ES2028978T3 (es) 1992-07-16
US4950138A (en) 1990-08-21
JPH01206101A (ja) 1989-08-18
ATE72878T1 (de) 1992-03-15
EP0321781A1 (de) 1989-06-28
DE3868609D1 (de) 1992-04-02

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