EP0545191B1 - Machine de déplacement de fluide de type à spirale - Google Patents

Machine de déplacement de fluide de type à spirale Download PDF

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Publication number
EP0545191B1
EP0545191B1 EP92119878A EP92119878A EP0545191B1 EP 0545191 B1 EP0545191 B1 EP 0545191B1 EP 92119878 A EP92119878 A EP 92119878A EP 92119878 A EP92119878 A EP 92119878A EP 0545191 B1 EP0545191 B1 EP 0545191B1
Authority
EP
European Patent Office
Prior art keywords
housing
displacement
spiral
magnesium alloy
machine
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
EP92119878A
Other languages
German (de)
English (en)
Other versions
EP0545191A1 (fr
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.)
Aginfor AG
Original Assignee
Aginfor AG fuer industrielle Forschung
Aginfor AG
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 Aginfor AG fuer industrielle Forschung, Aginfor AG filed Critical Aginfor AG fuer industrielle Forschung
Publication of EP0545191A1 publication Critical patent/EP0545191A1/fr
Application granted granted Critical
Publication of EP0545191B1 publication Critical patent/EP0545191B1/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
    • F01C1/0215—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
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber

Definitions

  • Displacement machine for compressible media with a plurality of spiral conveying spaces arranged in a fixed housing, which lead from a radially outer inlet to a radially inner outlet, and with a displacer assigned to the conveying spaces, essentially consisting of a disk with spiral strips arranged vertically on both sides, the eccentrically driven displacement body executes a circular movement delimited by the circumferential walls of the delivery chamber with each of its points during operation.
  • Displacement machines of the spiral type are known from DE-C-26 03 462.
  • a compressor constructed according to this principle is characterized by an almost pulsation-free conveyance of the gaseous working medium, which consists, for example, of air or an air-fuel mixture, and could therefore also be used with advantage for charging purposes of internal combustion engines, among other things.
  • the gaseous working medium which consists, for example, of air or an air-fuel mixture
  • a plurality of approximately crescent-shaped working spaces are trapped along the displacement chamber between the spiral-shaped displacement body and the two peripheral walls of the displacement chamber, which work spaces move from the inlet through the displacement chamber to the outlet.
  • a machine of the type mentioned at the outset is known from EP-A-0 354 342.
  • the former causes even steeper temperature gradients in the disk, the latter leads to greater inertia forces.
  • the displacement body is therefore preferably made of a light metal alloy, for example magnesium.
  • the mass forces acting on the main eccentric bearing can thus be minimized.
  • the two housing halves of such a machine mostly consist of an inexpensive die-cast aluminum.
  • the invention has for its object to provide a displacement machine of the type mentioned, in which the same starting material can be used for the parts in operative connection with each other.
  • the object is achieved in that the displacement body consists of a magnesium alloy and that at least the walls forming the conveying spaces in the circumferential direction of the spirals are made of a magnesium alloy.
  • the advantage of the invention is to be seen in the fact that in the event of the displacer and housing coming into contact, the material that is used cannot be run-in. This would not be the case with the aluminum rotor, for example.
  • the conveying spaces arranged in the housing and the webs delimiting them are produced in one piece with the housing and if the entire housing is thus made of a magnesium alloy.
  • the most bulky parts of a spiral machine are namely the housing halves; they form the majority of the weight.
  • the displacement machine which as a whole becomes much lighter due to the new measures, also requires lighter supports at the installation site. If this installation site is, for example, an internal combustion engine to be charged, the lighter design has a particularly favorable effect on the vibration behavior of the overall system.
  • Fig. 1 the housing with the delivery rooms and the inserted displacer is shown.
  • the rotor of the machine is designated as a whole by 1.
  • two spiral-shaped displacers are arranged, which are offset by 180 ° to one another. These are strips 3a, 3b which are held vertically on the pane 2.
  • the spirals themselves are formed from a plurality of circular arcs adjoining one another.
  • 4 with the hub is designated, via which the disc 2 with a roller bearing 22 is seated on an eccentric disc 23 (FIG. 2). This disk is in turn part of the main shaft 24.
  • the elements 2, 3a, 3b, 4 and 5 are made in one piece from a magnesium alloy.
  • FIG. 1 shows the housing half 7b shown on the left in FIG. 2 of the machine housing, which is composed of two halves 7a, 7b and is connected to one another via fastening eyes 8 for receiving screw connections.
  • 11a and 11b 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 12a, 12b 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 have essentially parallel cylinder walls 14a, 14b, 15a, 15b arranged at a constant distance from one another. which, like the displacement bodies of the disk 2, comprise a spiral of 360 °.
  • the displacers 3a, 3b engage between these cylinder walls, 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 each.
  • seals 49 are inserted in corresponding grooves. With them, the working rooms against the side walls of the housing respectively. sealed against the displacement disc.
  • the two housing halves 7a and 7b together with the webs 45 and 46 forming the conveying spaces 11a and 11b are also made of a magnesium alloy, which does not necessarily have to be the same as that of the displacement body.
  • Both parts can be cast or forged.
  • the drive and the guide of the rotor 1 are provided by the two spaced-apart eccentric arrangements 23, 24 and. 26, 27.
  • the main shaft 24 is supported in a roller bearing 17 and a slide bearing 18. At its end protruding from the housing half 7b, the shaft is provided with a V-belt pulley 19 for the drive.
  • Counterweights 20 are arranged on the shaft to compensate for the inertial forces arising when the rotor is eccentrically driven.
  • the guide shaft 27 is inserted in a sliding bearing 28 within the housing half 7b.
  • the two eccentric arrangements are synchronized with precise angles. This is done via a toothed belt drive 16.
  • the double eccentric drive ensures that all points of the rotor disk and thus also all points of the two strips 3a, 3b perform a circular displacement movement.
  • alternating approaches of the strips 3a, 3b to the inner and outer cylinder walls of the associated delivery chambers - a direct mutual contact being harmless due to the materials used - result on both sides of the Form crescent-shaped work spaces that enclose the working medium and that are moved through the delivery chambers towards the outlet while the rotor disk is being driven.
  • the volumes of these working spaces decrease and the pressure of the working fluid is increased accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Claims (2)

  1. Machine de déplacement pour des fluides compressibles avec plusieurs chambres de transport (11a, 11b) en forme de spirale disposées dans une enceinte fixe (7a, 7b), qui conduisent d'une entrée (12a, 12b) située radialement à l'extérieur vers une sortie (13) située radialement à l'intérieur, et avec un corps de déplacement associé aux chambres de transport, qui est essentiellement composé d'un disque (2) avec des ailettes (3a, 3b) en forme de spirale disposées perpendiculairement sur ses deux côtés, dans laquelle, pendant le fonctionnement, le corps de déplacement entraîné excentriquement décrit avec chacun de ses points un mouvement circulaire limité par les flancs de la chambre de transport,
    caractérisée en ce que le corps de déplacement se compose d'un alliage de magnésium et en ce qu'au moins les parois formant les chambres de transport (11a, 11b) dans la direction périphérique des spirales sont fabriquées en un alliage de magnésium.
  2. Machine de déplacement suivant la revendication 1, caractérisée en ce que les nervures (45, 46) qui limitent les chambres de transport (11a, 11b) sont fabriquées d'une seule pièce avec l'enceinte et en ce que la totalité de l'enceinte est fabriquée en un alliage de magnésium.
EP92119878A 1991-12-05 1992-11-23 Machine de déplacement de fluide de type à spirale Expired - Lifetime EP0545191B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3581/91 1991-12-05
CH358191 1991-12-05

Publications (2)

Publication Number Publication Date
EP0545191A1 EP0545191A1 (fr) 1993-06-09
EP0545191B1 true EP0545191B1 (fr) 1995-09-13

Family

ID=4259084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119878A Expired - Lifetime EP0545191B1 (fr) 1991-12-05 1992-11-23 Machine de déplacement de fluide de type à spirale

Country Status (4)

Country Link
US (1) US5356276A (fr)
EP (1) EP0545191B1 (fr)
JP (1) JPH05248375A (fr)
DE (1) DE59203677D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5690480A (en) * 1995-02-20 1997-11-25 Hitachi, Ltd. Scroll compressor with cooling holes in orbiting scroll
ES2164398T3 (es) * 1997-08-26 2002-02-16 Crt Common Rail Tech Ag Maquinas de desplazamiento espiral para medios compresibles.
ATE533920T1 (de) * 2007-08-22 2011-12-15 Spinnler Engineering Verdrängermaschine nach dem spiralprinzip
EP2745031B1 (fr) * 2011-08-15 2015-12-09 Volvo Lastvagnar AB Carter de boite de vitesses a rapports multiples

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB278382A (en) * 1926-09-30 1927-12-22 Swiss Locomotive & Machine Works Improvements connected with the pistons of rotary compressors
DE1525280B2 (de) * 1966-05-07 1975-02-27 Karl Schmidt Gmbh, 7107 Neckarsulm Leichtmetallkolben für Rotationskolbenmaschinen
US3756754A (en) * 1970-10-24 1973-09-04 Nippon Piston Ring Co Ltd Apex seal for rotary piston engine
CH586348A5 (fr) * 1975-02-07 1977-03-31 Aginfor Ag
JPS6412090A (en) * 1987-07-02 1989-01-17 Inoue Japax Res Scroll pump
JPH01155001A (ja) * 1987-12-11 1989-06-16 Toshiba Corp スクロール流体機械
DE58906623D1 (de) * 1988-08-03 1994-02-17 Aginfor Ag Verdrängermaschine nach dem Spiralprinzip.
JP2915047B2 (ja) * 1990-02-16 1999-07-05 株式会社日立製作所 スクロール部材およびその製造方法

Also Published As

Publication number Publication date
US5356276A (en) 1994-10-18
DE59203677D1 (de) 1995-10-19
EP0545191A1 (fr) 1993-06-09
JPH05248375A (ja) 1993-09-24

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