EP0561212B1 - Verdrängermaschine nach dem Spiralprinzip - Google Patents

Verdrängermaschine nach dem Spiralprinzip Download PDF

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Publication number
EP0561212B1
EP0561212B1 EP93103354A EP93103354A EP0561212B1 EP 0561212 B1 EP0561212 B1 EP 0561212B1 EP 93103354 A EP93103354 A EP 93103354A EP 93103354 A EP93103354 A EP 93103354A EP 0561212 B1 EP0561212 B1 EP 0561212B1
Authority
EP
European Patent Office
Prior art keywords
casing
spiral
housing
displacement
shut
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
EP93103354A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0561212A3 (ja
EP0561212A2 (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.)
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 EP0561212A2 publication Critical patent/EP0561212A2/de
Publication of EP0561212A3 publication Critical patent/EP0561212A3/xx
Application granted granted Critical
Publication of EP0561212B1 publication Critical patent/EP0561212B1/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
    • 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
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels

Definitions

  • the invention relates to a displacement machine for compressible media with a plurality of spiral conveying spaces arranged in a fixed housing, according to the preamble of claim 1.
  • 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 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, and could can therefore also be used with advantage for charging purposes of internal combustion engines.
  • 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.
  • a bypass circuit is generally used, which in the partial load area transports the unneeded charge air from the pressure side of the supercharger to the intake side.
  • a shut-off device is arranged in the bypass line.
  • the object of the invention is to provide a displacement machine of the type mentioned at the beginning, in which the same starting material can be used for the parts which are in operative connection with one another, and which enables a compact bypass arrangement.
  • the advantage of the invention is to be seen in the fact that when the displacer and the housing come into contact, it is not necessary to forego the ability to shrink in the material used.
  • 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 of the displacement machine with the conveying spaces and the inserted displacer is shown.
  • With 1 is the rotor of the machine as a whole.
  • Spiral displacers are arranged on both sides of the disk 2. These are strips 3a, 3b which are held vertically on the pane 2.
  • the spirals themselves are formed from a plurality of circular arcs connected to one another.
  • the elements 2, 3a, 3b, 4 and 5 are made in one piece from a magnesium alloy.
  • the machine housing is composed of the housing halves 7a, 7b, which are connected to one another via fastening eyes, not shown, for receiving screw connections.
  • 11a, 11b denote the two delivery spaces, each offset by 180 °, which are worked into the housing halves in the manner of a spiral slot. They run from an inlet 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 conveying spaces Include 360 °.
  • the displacers 3a, 3b engage between these cylinder walls, the curvature of which is dimensioned such that the strips attach the inner and outer cylinder walls of the housing to a plurality of for example, almost touch at two points.
  • seals 21 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 9 and 10 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 housing 55 for the shut-off element 56 here a flap, is arranged immediately downstream of the inlet 12.
  • the housing cover 57 forms the actual bypass, which thus enables the shortest flow paths.
  • 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. On her protruding from the housing half 7b At the end the shaft is provided with a pulley 19 for the drive.
  • the drive takes place via a V-belt 54 connected to the internal combustion engine 53.
  • Counterweights 20 are arranged on the shaft 24 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.
  • the charge air that is not required is conveyed back directly from the outlet 13 to the inlet 12 via the partially or completely opened shut-off device 56.
  • the housing halves are made in a die-casting mold, which in turn consists of two mold halves.
  • the direction of pull of the mold halves takes place in the direction of the axis 15, which is also the central axis of the outlet housing 14.
  • the central axis 58 of the flap housing 55 is parallel to the axis 15 runs, therefore also in the direction of pull of the mold halves. This means that no additional pulling core has to be installed for the valve body.
  • the same main machining axis, which also runs parallel to the direction of pull, can also advantageously be used as the basis for the mechanical machining for the outlet and flap housing. Only the machining of the valve shaft 59 requires an additional machining axis.
  • FIG. 3 shows an embodiment variant in which - with the housing half 7a otherwise being the same - the actual bypass line is located outside the housing cover 57.
  • This variant is advantageously used when a charge air cooler 60 is provided downstream of the spiral machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP93103354A 1992-03-16 1993-03-03 Verdrängermaschine nach dem Spiralprinzip Expired - Lifetime EP0561212B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4208312A DE4208312A1 (de) 1992-03-16 1992-03-16 Verdraengermaschine nach dem spiralprinzip
DE4208312 1992-03-16

Publications (3)

Publication Number Publication Date
EP0561212A2 EP0561212A2 (de) 1993-09-22
EP0561212A3 EP0561212A3 (ja) 1994-01-19
EP0561212B1 true EP0561212B1 (de) 1996-05-15

Family

ID=6454142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103354A Expired - Lifetime EP0561212B1 (de) 1992-03-16 1993-03-03 Verdrängermaschine nach dem Spiralprinzip

Country Status (3)

Country Link
EP (1) EP0561212B1 (ja)
JP (1) JPH0617775A (ja)
DE (2) DE4208312A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429275A1 (de) * 1994-08-19 1996-02-22 Rolf Mattes Vorrichtung zur Aufladung von Verbrennungsmotoren mit Mehrtaktfunktion
US5690480A (en) * 1995-02-20 1997-11-25 Hitachi, Ltd. Scroll compressor with cooling holes in orbiting scroll
DE19528070C2 (de) * 1995-07-31 1999-03-04 Knorr Bremse Systeme Spiralverdichter mit zweiseitiger Spiralanordnung
US7654085B2 (en) * 2006-08-28 2010-02-02 Elijah Dumas System of an induced flow machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216970A (ja) * 1984-04-10 1985-10-30 Matsushita Electric Ind Co Ltd 圧縮機用スクロ−ル及びその製造方法
JPH0650114B2 (ja) * 1985-11-26 1994-06-29 三菱重工業株式会社 スクロ−ル型流体機械
JPS62127447A (ja) * 1985-11-26 1987-06-09 Mitsubishi Heavy Ind Ltd 鋳造アルミニウム合金
JPH01273892A (ja) * 1988-04-27 1989-11-01 Hitachi Ltd スクロール型圧縮機
DE58906623D1 (de) * 1988-08-03 1994-02-17 Aginfor Ag Verdrängermaschine nach dem Spiralprinzip.
JPH0250026U (ja) * 1988-09-28 1990-04-06
DE3840970A1 (de) * 1988-12-05 1990-06-21 Siemens Ag Rollkolbenverdichter zur aufladung eines verbrennungsmotors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAE Technical Paper Series, Development of Volkswagen's Supercharger G-Lader, 860101,International Congress and Exposition Detroit, Michigan February 24-28, 1986 *

Also Published As

Publication number Publication date
DE4208312A1 (de) 1993-09-23
EP0561212A3 (ja) 1994-01-19
JPH0617775A (ja) 1994-01-25
EP0561212A2 (de) 1993-09-22
DE59302551D1 (de) 1996-06-20

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