EP0085889B1 - Machine à piston rotatif à deux ou plusieurs étages - Google Patents

Machine à piston rotatif à deux ou plusieurs étages Download PDF

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Publication number
EP0085889B1
EP0085889B1 EP83100640A EP83100640A EP0085889B1 EP 0085889 B1 EP0085889 B1 EP 0085889B1 EP 83100640 A EP83100640 A EP 83100640A EP 83100640 A EP83100640 A EP 83100640A EP 0085889 B1 EP0085889 B1 EP 0085889B1
Authority
EP
European Patent Office
Prior art keywords
rotary piston
stage
auxiliary shaft
piston machine
machine according
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
Application number
EP83100640A
Other languages
German (de)
English (en)
Other versions
EP0085889A1 (fr
Inventor
Günter Ing. grad. Seidel
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.)
Aerzener Maschinenfabrik GmbH
Original Assignee
Aerzener Maschinenfabrik GmbH
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 Aerzener Maschinenfabrik GmbH filed Critical Aerzener Maschinenfabrik GmbH
Publication of EP0085889A1 publication Critical patent/EP0085889A1/fr
Application granted granted Critical
Publication of EP0085889B1 publication Critical patent/EP0085889B1/fr
Expired 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
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • 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
    • F01C21/008—Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19084—Spur

Definitions

  • the present invention relates to a two-stage or multi-stage rotary piston machine, with at least one rotary piston and a transmission driving this per stage, the drive shaft of the respective transmission being coupled to a drive motor.
  • a machine can be designed and manufactured for each specific application, which, with optimum efficiency, precisely adheres to certain predetermined values in relation to each of the parameters specified above.
  • such machines must be specially designed and manufactured for each application as special machines and are therefore very expensive in terms of planning and manufacture.
  • the object of the present invention is to provide a completely new type of two-stage or multi-stage rotary lobe machine which, for any application, permits optimal adaptation to the efficiency, the parameters mentioned above and in particular the intake volume flow as in the case of special machines, but in relation to the Construction and manufacturing costs and in terms of disposability can be produced more economically than special machines and comparable previously known series machines.
  • each stage has an axially parallel to the respective rotary piston axis and connected to the drive shaft axially connected auxiliary shaft, which is formed at its free end opposite the drive shaft for tapping torques and that the drive shaft of the transmission of the respective downstream stage the free end of the auxiliary shaft of the upstream stage is coupled.
  • a two-stage or multi-stage rotary piston machine is created for the first time, in which a countershaft is provided for each stage, via which a torque can be tapped at the speed of the drive shaft without thereby loading the transmission gear for the rotary piston or pistons .
  • This configuration makes it possible to couple two or more rotary piston machines to one another via the respective auxiliary shaft to form two or more stages.
  • the steps can be of any size, ie a step of the same, larger or smaller size can be coupled to the auxiliary shaft of the first or the preceding step. Due to their own transmission gear, all stages can be adapted to the optimal intake volume flows and intermediate pressures required, so that all stages can be operated with respect to the parameters mentioned in terms of efficiency in the optimum range of use.
  • Another advantage of the concept according to the invention is that the use of additional and specially adapted gears, as are required for tandem arrangements and parallel arrangements, is not necessary.
  • steps of any size can be coupled together. It is also possible to couple two machines of the same size together and to operate the first in the upper peripheral speed range and the second in the lower peripheral speed range.
  • each machine in the case of coupling several machines of the type according to the invention, each machine ultimately works as a single stage, which can be adapted to the respective requirements of its task in the overall system by a corresponding choice of the gear ratio of its transmission.
  • the machine design according to the invention can be used both in rotary piston machines with one and in those with two or more rotary pistons. However, it is particularly advantageous for rotary lobe machines with two rotary lobes per stage.
  • auxiliary shaft In principle, it is possible to assemble the auxiliary shaft from several parts. However, a construction is advantageous in which the auxiliary shaft is connected in one piece to the drive shaft.
  • the gear wheel is mounted on both sides of the drive shaft.
  • dimensioning of the auxiliary shaft on bending can be dispensed with, so that only the transmission of the respectively required torque is included in the calculation of the shaft dimension.
  • such shafts which are only subjected to torsion can be dimensioned smaller than those which are also subjected to bending.
  • the auxiliary shaft can have any length. However, it is expedient if the length of the auxiliary shaft is equal to or greater than the length of the rotary piston or pistons. As a result, the free end of the auxiliary shaft designed for tapping torques lies on the side of the rotary piston machine opposite the drive shaft, which simplifies the coupling of further rotary piston machines, since these can be arranged in series one behind the other. This also simplifies the formation of the common foundations.
  • the housing in the area below the auxiliary shaft can be designed as a connecting channel for the oil lubrication of the machine and can therefore be used in a special way.
  • the auxiliary shaft according to the invention is not only suitable for coupling rotary piston machines to form two or more stages, but also for coupling additional units.
  • a fan wheel of a cooling arrangement for the machine can be coupled to the auxiliary shaft.
  • an oil pump can also be coupled to the auxiliary shaft.
  • this oil pump can be used for gear and bearing lubrication and, on the other hand, when the machine is operating wet, it can be used to convey the lubricant for the rotary lobes.
  • the oil pump can be pushed onto the auxiliary shaft. This makes it possible to arrange the oil pump not only in the area of the ends of the auxiliary shafts, but also, if necessary, at any point between the ends.
  • the transmission gear used in the respective size for the single-stage design could not be used for the two-stage design in a tandem arrangement (see, for example, Fig. 5), since in the tandem arrangement the whole for the torque required to drive the second stage runs via the transmission gear of the first stage.
  • the intermediate pressure could not be adapted to the ideal values because of the fixed speed and transmission ratios.
  • rotary lobe machines of the type according to the invention have an auxiliary shaft 4 which runs parallel to the rotary piston axis and is connected to the respective drive shaft 1 for the transmission 2, 3 with the same axis and which is designed at its free end 5 opposite the drive shaft 1 for tapping torques, the drive shaft 1 of the transmission 2, 3 of the downstream stage is coupled to the free end 5 of the auxiliary shaft 4 of the upstream stage.
  • Such rotary piston machines of the type according to the invention equipped with a countershaft 4 can be economically produced, including the housing, in series production in various sizes. According to the invention, these rotary piston machines are connected in series to form two-stage or multi-stage machines (cf. FIGS. 11 to 13). 4 additional units, such as an oil pump or a fan wheel, can also be coupled to the free end of the auxiliary shaft. Since the machine design has two or more stages, the auxiliary shafts 4 serve to transmit the torque to the subsequent stage. Due to the use of a countershaft according to the invention, torque can be transmitted from one stage to the other at the speed of the drive shaft without the transmission gear for the respective stage being loaded thereby. In addition, since the gear ratio of the respective stage has no influence on the speed of the subsequent stage, the gear 2, 3 of each stage can be individually adapted to the respective requirements of the respective stage in order to achieve optimum efficiency.
  • FIGS. 12 and 13 not only rotary piston machines of different sizes (FIG. 12), but also of the same size (FIG. 13) can be combined with one another to form a two-stage rotary lobe machine of the type according to the invention, and thus one for the respective purpose exactly adapted machine can be created without the effort of a special machine.
  • the sectional view according to FIG. 14 shows schematically the coupling of additional units to the auxiliary shaft.
  • a fan wheel 7 is arranged on the auxiliary shaft 4 of the first stage, which sucks or presses cooling air through a cooler 8 attached to the housing of the first stage.
  • the countershaft 4 also drives an oil pump 6, which is pushed onto the auxiliary shaft and arranged in a recess arranged inside the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (10)

1. Machine à pistons rotatifs à deux ou plusieurs étages, comprenant par étage au moins un piston rotatif ainsi qu'un train d'engrenages entraînant celui-ci, l'arbre d'entraînement du train d'engrenages à chaque fois considéré étant accouplé à un moteur d'entraînement, caractérisée par le fait que chaque étage comporte un arbre secondaire (4) qui, disposé parallèlement à l'axe du piston rotatif correspondant et raccordé coaxialement à l'arbre d'entraînement (1) est réalisé pour la prise de couples à son extrémité libre (5) opposée à l'arbre d'entraînement (1) et que l'arbre d'entraînement (1) du train d'engrenages (2, 3) de l'étage respectivement monté en aval est accouplé à l'extrémité libre (5) de l'arbre secondaire (4) de l'étage respectivement monté en amont.
2. Machine à piston rotatif selon la revendication 1, caractérisée par le fait que l'arbre secondaire (4) est raccordé d'une seule pièce à l'arbre d'entraînement (1).
3. Machine à piston rotatif selon la revendication 2, caractérisée par le fait que la roue d'engrenage (2) est montée des deux côtés sur l'arbre d'entraînement (1).
4. Machine à piston rotatif selon la revendication 1 ou 2, caractérisée par le fait que la longueur de l'arbre 'secondaire (4) est égale ou supérieure à la longueur du ou des pistons rotatifs.
5. Machine à piston rotatif selon la revendication 4, caractérisée par le fait que le carter dans la zone située en dessous de l'arbre secondaire (4) est réalisé sous la forme d'un canal de raccordement pour l'huile de graissage de la machine.
6. Machine à piston rotatif selon l'une ou plusieurs des revendications précédentes, caractérisée par le fait qu'une roue de ventilateur (7) est accouplée à l'arbre secondaire.
7. Machine à piston rotatif selon la revendication 6, caractérisée par le fait que la roue de ventilateur est montée sur l'arbre secondaire.
8. Machine à piston rotatif selon l'une ou plusieurs des revendications précédentes, caractérisée par le fait qu'une pompe à huile (6) est accouplée à l'arbre secondaire.
9. Machine à piston rotatif selon la revendication 8, caractérisée par le fait que la pompe à huile est montée sur l'arbre secondaire.
10. Machine à piston rotatif avec entraînement par moteur Diesel selon l'une ou plusieurs des revendications précédentes, caractérisée par le fait que le sens de rotation de l'arbre secondaire (4) correspond au sens de rotation du moteur Diesel.
EP83100640A 1982-01-29 1983-01-25 Machine à piston rotatif à deux ou plusieurs étages Expired EP0085889B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3202993 1982-01-29
DE3202993A DE3202993C2 (de) 1982-01-29 1982-01-29 Drehkolbenverdichter

Publications (2)

Publication Number Publication Date
EP0085889A1 EP0085889A1 (fr) 1983-08-17
EP0085889B1 true EP0085889B1 (fr) 1987-03-04

Family

ID=6154294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100640A Expired EP0085889B1 (fr) 1982-01-29 1983-01-25 Machine à piston rotatif à deux ou plusieurs étages

Country Status (5)

Country Link
US (1) US4601643A (fr)
EP (1) EP0085889B1 (fr)
JP (1) JPS58170891A (fr)
DE (1) DE3202993C2 (fr)
GB (1) GB2114228B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2511870B2 (ja) * 1986-03-20 1996-07-03 株式会社日立製作所 スクリユ−真空ポンプ装置
JPS62243982A (ja) * 1986-04-14 1987-10-24 Hitachi Ltd ２段型真空ポンプ装置およびその運転方法
JP2645574B2 (ja) * 1988-10-07 1997-08-25 株式会社宇野澤組鐵工所 多段真空ポンプ
JPH05272478A (ja) * 1992-01-31 1993-10-19 Matsushita Electric Ind Co Ltd 真空ポンプ
US6692234B2 (en) * 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
DE10003869C5 (de) * 2000-01-28 2007-11-08 Aerzener Maschinenfabrik Gmbh Verfahren zum Komprimieren von fluiden Fördermedien
KR100561419B1 (ko) * 2004-02-21 2006-03-16 삼성전자주식회사 다중헤드기어펌프 및 이를 채용한 습식 화상형성장치
US8998586B2 (en) * 2009-08-24 2015-04-07 David Muhs Self priming pump assembly with a direct drive vacuum pump
US9267504B2 (en) 2010-08-30 2016-02-23 Hicor Technologies, Inc. Compressor with liquid injection cooling
US8794941B2 (en) 2010-08-30 2014-08-05 Oscomp Systems Inc. Compressor with liquid injection cooling
KR102148716B1 (ko) * 2014-01-23 2020-08-27 삼성전자주식회사 냉동장치 및 압축기
EP3926212A1 (fr) * 2020-06-19 2021-12-22 Flender GmbH Carter d'engrenage échelonnable et gamme de carters
US11990819B2 (en) 2020-11-24 2024-05-21 Bosch Rexroth Corporation Electric and hydraulic machine
US12025131B2 (en) * 2022-08-08 2024-07-02 Deere & Company Torque transfer gear pump

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE163240C (fr) *
US1389782A (en) * 1914-07-16 1921-09-06 John G Perrin Automobile-pump
NL17798C (fr) * 1926-04-11
US1750170A (en) * 1926-04-15 1930-03-11 Frisch August Pumping apparatus
US3088660A (en) * 1960-08-23 1963-05-07 Ingersoll Rand Co Rotary air compressor
GB933973A (en) * 1961-02-03 1963-08-14 Ganz Mavag Mozdony Vagon Improved compressor arrangement
US3407996A (en) * 1966-06-22 1968-10-29 Atlas Copco Ab Screw compressor units
US3388854A (en) * 1966-06-23 1968-06-18 Atlas Copco Ab Thrust balancing in rotary machines
DE1954682A1 (de) * 1969-10-30 1971-05-06 Linde Ag Hydrostatische Maschine
US3779675A (en) * 1972-07-31 1973-12-18 Demag Drucklufttech Drive system for a plurality of worm driven compressors
DE2404711A1 (de) * 1974-02-01 1975-08-07 Draiswerke Gmbh Fluessigkeitsdosiereinrichtung
US4025224A (en) * 1975-12-02 1977-05-24 Starbard Raymond Edward Multiple air motor drive unit
DE2628387C3 (de) * 1976-06-24 1979-08-16 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Leistungsverzweigendes Getriebe
US4283167A (en) * 1979-04-26 1981-08-11 Varian Associates, Inc. Cooling structure for an oil sealed rotary vacuum pump

Also Published As

Publication number Publication date
GB8302309D0 (en) 1983-03-02
DE3202993A1 (de) 1983-08-18
US4601643A (en) 1986-07-22
GB2114228B (en) 1986-03-05
GB2114228A (en) 1983-08-17
DE3202993C2 (de) 1986-07-10
EP0085889A1 (fr) 1983-08-17
JPS58170891A (ja) 1983-10-07

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