EP0376026A1 - Machine à déplacement positif selon le principe de spirale - Google Patents

Machine à déplacement positif selon le principe de spirale Download PDF

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Publication number
EP0376026A1
EP0376026A1 EP89122743A EP89122743A EP0376026A1 EP 0376026 A1 EP0376026 A1 EP 0376026A1 EP 89122743 A EP89122743 A EP 89122743A EP 89122743 A EP89122743 A EP 89122743A EP 0376026 A1 EP0376026 A1 EP 0376026A1
Authority
EP
European Patent Office
Prior art keywords
housing
main shaft
shaft
guide shaft
eccentric arrangement
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.)
Withdrawn
Application number
EP89122743A
Other languages
German (de)
English (en)
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.)
ABB Asea Brown Boveri Ltd
ABB AB
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0376026A1 publication Critical patent/EP0376026A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement

Definitions

  • the invention relates to a displacer for compressible media with at least one spiral-like conveying chamber arranged in a fixed housing and with a spiral-like displacer associated with this conveying chamber, which is held on a disk-shaped rotor which can be driven eccentrically relative to the housing in such a way that each of its points during operation is one of performs limited circular movement of the peripheral walls of the delivery chamber, and its curvature relative to that of the delivery chamber is dimensioned such that it almost touches the inner and outer peripheral walls of the delivery chamber on at least one sealing line that progresses continuously during operation, one opposite to guide the rotor relative to the housing a first eccentric arrangement at a distance from the second eccentric arrangement is provided, the guide shaft of which is mounted in the housing with the main shaft of the first eccentric arrangement is coherently connected.
  • Displacement machines of the spiral type are known, for example, 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 advantageously 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 machine of the type mentioned at the outset is known from DE-A-3 313 000.
  • a guide shaft of the second eccentric arrangement mounted in the housing is positively connected to the drive shaft via a toothed belt drive.
  • the main eccentric shaft is generally driven directly by a belt from the crankshaft of the internal combustion engine, usually an internal combustion engine.
  • the transmission ratio from engine to loader is limited by the largest possible diameter of the drive pulley on the crankshaft of the engine on the one hand and by the smallest possible Liche diameter of the pulley on the loader on the other hand.
  • This limitation of the maximum loading speed leads to the design of loaders with a relatively large installed stroke volume. This fact that the spiral charger is relatively large compared to other mechanical compressors must be seen as a disadvantage.
  • the invention is therefore based on the object to provide a possibility for increasing the speed of a displacement machine of the type mentioned.
  • both the guide shaft and the main shaft are driven via a common countershaft transmission, an input shaft provided with a pulley being equipped with the larger of the gear wheels and thus being mounted between the guide shaft and the main shaft in the interior of the housing, that the large gear is permanently engaged with the pinions on the main shaft and on the guide shaft.
  • the advantage of the invention can be seen in the fact that, as a result of the speed increase with a displacement machine which has a relatively small stroke volume, it is possible to penetrate into a range of increased throughputs. Since the gearbox also takes over the synchronization of the guide shaft and the main shaft, the previous toothed belt connection, which is a weak point of the displacement machine, especially at high speeds, is no longer required.
  • 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.
  • two spiral-shaped displacers are arranged, which are offset by 180 ° to one another. 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. 4 with the hub is designated with which the disc 2 is mounted on a roller bearing 22. This bearing sits on an eccentric disk 23, which in turn is part of the main shaft 24. 5 with a radially outside of the strips 3,3 'arranged eye is designated for receiving a guide bearing 25 which is mounted on an eccentric bolt 26. This in turn is part of a guide shaft 27.
  • two openings 6 are provided in the disk so that the medium can pass from one disk side to the other, for example to be drawn off in a central outlet 13 (FIG. 3) which is only arranged on one side.
  • Fig. 1 the housing half 7 shown in Fig. 3 left of the two halves 7,7 'assembled, via fastening eyes 8 for receiving screw connections interconnected machine housing is shown.
  • 9 symbolizes a sprocket mounted on the main shaft 24, 10 a sprocket applied to the guide shaft 27 with the same diameter and the same number of teeth as 9.
  • 16 the larger gear of the countershaft transmission is indicated, which in the case shown is centered on the connecting line of the axes the two pinions 9 and 10 is located.
  • 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 interior of the housing and common to both delivery spaces. They have essentially parallel, uniformly spaced cylinder walls 14, 14', 15, 15 '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, respectively. 26.27.
  • the main shaft 24 is supported in the roller bearings 17 and 18. It is provided with a pinion 9 at its drive end.
  • counterweights 20 are arranged for the end equal to the mass forces generated by the eccentric drive of the rotor.
  • the guide shaft 27 is inserted within the housing half 7 in two roller bearings 28 and also carries a pinion 10 at the drive end.
  • the two pinions 9 and 10 are located in the same vertical plane.
  • the two eccentric arrangements 16 are synchronized with precise angles. This is done here by merging the functions with the actual drive and the desired gear ratio.
  • the larger gear 16 of the countershaft transmission is constantly in engagement with the pinions 9 and 10, and is therefore in the same vertical plane as this, namely between the guide shaft 27 and the main shaft 24; thus it is located inside the housing.
  • the wheel 16 is mounted on an input shaft 21 which is mounted in the housing half 7 with two roller bearings 29.
  • the input shaft 21 is provided at its end protruding from the housing half 7 with a V-belt pulley 19 for the drive.
  • the gear ratio is accordingly determined by the mere choice of diameter of the gears 16 and 16 involved. 9 and 10 determined.
  • the shown central arrangement of the gear 16 between the wheels 9 and 10 is of course not mandatory. For reasons of space, it may prove expedient to move the input shaft 21 laterally to the connecting line between the axes of the guide shaft 27 and the main shaft 24.
  • the double eccentric drive ensures that all points of the rotor disc and thus also all points of the two strips 3, 3 'perform a circular displacement movement.
  • crescent-shaped work spaces including the working medium result on both sides of the strips, which are displaced during the drive of the rotor disk by 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP89122743A 1988-12-23 1989-12-09 Machine à déplacement positif selon le principe de spirale Withdrawn EP0376026A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4779/88 1988-12-23
CH4779/88A CH676870A5 (fr) 1988-12-23 1988-12-23

Publications (1)

Publication Number Publication Date
EP0376026A1 true EP0376026A1 (fr) 1990-07-04

Family

ID=4282397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122743A Withdrawn EP0376026A1 (fr) 1988-12-23 1989-12-09 Machine à déplacement positif selon le principe de spirale

Country Status (3)

Country Link
EP (1) EP0376026A1 (fr)
JP (1) JPH02223689A (fr)
CH (1) CH676870A5 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6579080B1 (en) * 1999-02-18 2003-06-17 Crt Common Rail Technologies Ag Displacement machine based on the spiral principle
DE102007043579A1 (de) * 2007-09-13 2009-03-19 Handtmann Systemtechnik Gmbh & Co. Kg Verdrängermaschine nach dem Spiralprinzip

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11324946A (ja) * 1998-05-11 1999-11-26 Mitsubishi Heavy Ind Ltd スクロール型圧縮機

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR585340A (fr) * 1923-08-08 1925-02-25 Machine à fluide
GB1510962A (en) * 1975-07-18 1978-05-17 Wdm Ltd Vacuum pumps

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726203A (en) * 1980-07-22 1982-02-12 Ebara Corp Scroll machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR585340A (fr) * 1923-08-08 1925-02-25 Machine à fluide
GB1510962A (en) * 1975-07-18 1978-05-17 Wdm Ltd Vacuum pumps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 89 (M-132)[967), 27. Mai 1982; JP-A-57 26 203 (EBARA SEISAKUSHO) 12-02-1982 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6579080B1 (en) * 1999-02-18 2003-06-17 Crt Common Rail Technologies Ag Displacement machine based on the spiral principle
DE102007043579A1 (de) * 2007-09-13 2009-03-19 Handtmann Systemtechnik Gmbh & Co. Kg Verdrängermaschine nach dem Spiralprinzip

Also Published As

Publication number Publication date
JPH02223689A (ja) 1990-09-06
CH676870A5 (fr) 1991-03-15

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Effective date: 19910105