WO2009138143A1 - Ensemble de compresseurs - Google Patents

Ensemble de compresseurs Download PDF

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Publication number
WO2009138143A1
WO2009138143A1 PCT/EP2009/001169 EP2009001169W WO2009138143A1 WO 2009138143 A1 WO2009138143 A1 WO 2009138143A1 EP 2009001169 W EP2009001169 W EP 2009001169W WO 2009138143 A1 WO2009138143 A1 WO 2009138143A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
mode
compressed air
compressor device
valve
Prior art date
Application number
PCT/EP2009/001169
Other languages
German (de)
English (en)
Inventor
Klaus Gohlisch
Folkhard Hölzel
Original Assignee
Wabco 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 Wabco Gmbh filed Critical Wabco Gmbh
Publication of WO2009138143A1 publication Critical patent/WO2009138143A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps

Definitions

  • the invention relates to a compressor device with at least a first and a second compressor according to the patent claim 1.
  • Compressor devices with a first and a second compressor are known for example as so-called two-stage compressors, z.
  • Such two-stage compressors are used in particular for generating a high compression end pressure.
  • a first compression of the pressure medium is effected by a first compressor stage and fed to the compressed compressor of the second compressor stage for further compression.
  • Two-stage compressors are conceptually a relatively low fluid throughput, measured in terms of required space and weight.
  • the invention is therefore based on the object of specifying a compressor device with at least one first and second compressor, which allows a significantly larger pressure fluid flow rate with respect to known compressor devices comparable effort.
  • the invention has the advantage of being able to operate the first and the second compressor optionally both in the manner of a parallel connection and in the manner of a series connection, the advantages of the single-stage compressor. pression with those of the two- or multi-stage compression.
  • the single-stage compression allows large flow rates of the pressure medium.
  • this when using the compressor device according to the invention in a compressed air system of a vehicle, this has the advantage that when starting the vehicle, the compressed air reservoir can be filled relatively quickly, so that the vehicle is ready for use quickly, which saves the vehicle user time and money.
  • the two- or multi-stage compression in addition to the generation of a higher pressure level, a lower compression end temperature and thus a reduced oil decomposition of the oil used for lubrication and a reduction of the oil consumption of the compressor device. This reduces an improved air quality compared to single-stage compression.
  • Another advantage of the two- or multi-stage compression is that the degree of delivery of the compressor device is higher than in the single-stage compression. The degree of delivery refers to the quotient of the amount of air actually delivered and the theoretically amount of air that can be theoretically extracted.
  • Another advantage of the invention is its many uses.
  • the invention can be advantageously realized already with two compressors.
  • An extension to another compressor is possible without much effort.
  • the further compressor in the first mode, is operable parallel to the first and second compressors in the manner of a parallel connection, such that the compressible medium supplied to the further compressor is independent of the medium discharged from the first and second compressors.
  • the first, the second and the further compressor are operable in the manner of a series connection, such that the further compressor of the second compressor already receives compressed compressible medium and further compresses it.
  • a valve device is provided for switching between the first mode (parallel connection) and the second mode (series connection). This makes it possible to switch between the two operating modes with little effort.
  • the valve device may be designed according to an advantageous development as an electrically controllable by an electronic control device valve device. This has the advantage that the criteria for switching between the operating modes can be defined taking into account the most varied input signals of the electronic control device, whereby an optimized pressure medium delivery adapted to the respective operating conditions is made possible.
  • the invention makes it possible to switch from the first mode to the second mode and vice versa at any desired time.
  • a switch to the second mode with the associated benefits done as soon as an improvement in air quality seems appropriate or necessary.
  • the switching can be triggered by an external signal, which is supplied to the compressor device from an electronically controlled air treatment plant.
  • the changeover from the first mode to the second mode as soon as the output side pressure level of the second compressor reaches or exceeds a predetermined pressure value.
  • FIGS 1 to 3 show three advantageous embodiments of the compressor device according to the invention in a schematic form.
  • like reference numerals are used for corresponding parts.
  • the first and the second compressor (1, 2) are operable in the manner of a parallel connection.
  • the second compressor (2) supplied compressible medium, d. H. the air, regardless of the medium discharged from the first compressor (1).
  • the first and the second compressor (1, 2) are operable in the manner of a series connection. In this case, the second compressor (2) absorbs the compressible medium already compressed by the first compressor (1) and compresses it further.
  • a suction port of a first compressor (1) via an air filter (5) is connected to the atmosphere.
  • the first compressor (1) can be driven via a drive shaft shown schematically, for example by a vehicle engine.
  • the first compressor (1) sucks air from the atmosphere via the air filter (5), compresses it and delivers it via a compressed air outlet connection to a first valve (4).
  • the first valve (4) is part of a valve device (3, 4) for switching between the first and second operating modes of the compressor device.
  • the first valve (4) is designed as a pneumatically actuated 3/2-way valve and serves to switch the compressed air output port of the first compressor (1) in response to the first and the second mode.
  • the first valve (4) has a first outlet port, which is connected via an intercooler (11) to a suction port of a second compressor (2).
  • a second output port of the first valve (4) is connected via a compressed air line (7) with the compressed air output port of the second compressor (2).
  • the intake port of the second compressor (2) is additionally connected via a compressed air line (6) with a second valve (3) designed as a pneumatically controlled 2/2-way valve, which is a further component of the valve device (3, 4).
  • the second valve (3) connects the suction port of the second compressor (2) in the first mode via the filter (5) with the atmosphere, thereby allowing a direct suction of air from the atmosphere.
  • the first and second valves (3, 4) are inactive, with the result that the suction port of the second compressor (2) is disconnected from the compressed air outlet port of the first compressor (1) via the valve (4) and instead draws in air via the compressed air line (6), the second valve (3) and the air filter (5).
  • the first compressor (1) is the compressed air via the first valve (4) and the compressed air line (7) directly into the compressed air discharge line (8).
  • the first and second valves (3, 4) are actuated, with the result that the suction port of the second compressor (2) is connected via the valve (4) to the compressed air outlet port of the first compressor (1) is and sucks from the first compressor (1), already compressed compressed air via the first valve (4) and the intercooler (11).
  • the intercooler (11) serves to cool the compressed air released due to the compression process at a higher temperature level.
  • By cooling the efficiency of the second compressor stage can be improved by at least approximately an isothermal compression takes place. Overall, a reduction of the total temperature level, whereby harmful relatively high compression end temperatures are avoided in each of the compressor stages.
  • the compressed air discharge line (8) is connected to a compressed air reservoir (9), which serves to store the generated compressed air.
  • a compressed air reservoir (9) which serves to store the generated compressed air.
  • pressure-medium-actuated valves (3, 4) their pressure medium control inputs are connected via a compressed air line (10) to the compressed air reservoir (9).
  • this pressure via the compressed air line (10) causes a switching of the valves (3, 4) and thus a switching of the compressor device from the first to the second mode.
  • the compressor device in an embodiment in which the valve means (3, 4) by an electronic control device (13) is electrically actuated.
  • the first and the second valve (3, 4) can be actuated, for example via a respective electromagnet.
  • the electrical actuation takes place via an electrical line (12).
  • the electronic control device (13) is also connected via an electrical line (15) with a pressure sensor (14) which detects the pressure in the compressed air reservoir (9).
  • the electronic control device (13) monitors the pressure value detected by the pressure sensor (14) and effects a switchover from the first operating mode to the second operating mode by electrical actuation of the valve device (3, 4) as soon as the pressure value is indicated. the pressure level in the compressed air reservoir (9) reaches or exceeds a predetermined pressure value.
  • the electronic control device (13) additionally detects the air consumption of the compressed air reservoir (9) connected compressed air system, for example by monitoring the time course of the signal of the pressure sensor (14). at briefly increased air consumption, the electronic control device (13) then switches by electrical actuation of the valve means (3, 4), the compressor means in the first mode to cover the increased air requirement.
  • the electronic control device (13) is further connected via an interface with other electronic devices in a vehicle.
  • the interface is symbolized in FIG. 2 as well as in FIG. 3 by a line (19).
  • the interface can, for example.
  • a data communication bus system z. B. a CAN bus system, be formed.
  • the electronic control device receives signals from other devices in the vehicle, for example from an electronically controlled air dryer or an electronically controlled air treatment device. Information about the air requirement of the compressed air system in the vehicle is given by these devices, for example, so that the electronic control device (13) can select the first or the second operating mode depending on the information about the air requirement.
  • Further information which the electronic control device (13) receives via the interface can be, for example, information about the moisture content of the compressed air or the moisture content of the air dryer.
  • the electronic control device (13) switches the compressor device in the first mode when the wet signal reaches or exceeds a certain value. In this case, can be promoted by the one-stage compression faster a large amount of air, so that a certain amount of air in the compressed air reservoir (9) can be built. As a result, the duty ratio of the compressor device can be shortened, and there is early time for regenerating the air dryer available.
  • the compressor device is shown in FIG. 2, wherein the compressed air generated by the first compressor (1) in the second mode via the compressed air line (7), as shown in FIGS. 1 and 2, the compressed air Ab - supply line (8) is supplied, but another compressed air reservoir (16).
  • the further compressed air reservoir (16) is designed for example as a reservoir for a low pressure circuit, while the compressed air reservoir (9) stores the compressed air reservoir for a high pressure circuit.
  • the pressure in the further compressed air reservoir (16) via a further pressure sensor (17) is detected.
  • the pressure sensor (17) outputs a pressure signal via an electrical line (18) to the electronic control device (13).
  • the electronic control device (13) is programmed in such a way that it records the pressure values in both storage containers (9, 16) and switches the compressor device into the respectively suitable operating mode when it falls below a respective minimum value, which replenishment of the compressed air storage container (9 , 16). It is advantageous to operate the compressor device in the first operating mode for replenishment of the further compressed-air reservoir (16).
  • the filling of the compressed air reservoir (9) can be done up to a certain pressure level in the first mode. If a higher pressure level is required, this recognizes the electronic control device (13) and switches the compressor device in the second mode.
  • the invention can also be used generally and in all the illustrated embodiments in such a way that the first and the second compressor (1, 2) do not supply the respective air supplied to them in the first operating mode from the same source, i. H. via the air filter (5), but also from different air sources. It is advantageous z. B. a further processing of compressed air from other pressure medium circuits of a larger pressure medium system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

L'invention porte sur un ensemble de compresseurs comprenant au moins un premier et un second compresseur (1, 2), cet ensemble de compresseurs présentant au moins deux modes de fonctionnement. Elle concerne plus particulièrement un ensemble de compresseurs comprenant au moins un premier et un second compresseur, qui, par rapport à des ensembles de compresseurs représentant un investissement comparable, autorisent un débit de fluide de travail nettement plus élevé. À cette fin, l'ensemble de compresseurs présente un premier mode de fonctionnement, dans lequel le premier et le second compresseur (1, 2) sont exploités selon un système de montage en parallèle, de telle manière que le fluide compressible alimentant le second compresseur (2) est indépendant du fluide fourni par le premier compresseur (1), et un second mode de fonctionnement, dans lequel le premier et le second compresseur (1, 2) sont exploités selon un système de montage en série, de telle manière que le second compresseur (2) reçoit un fluide compressible déjà compressé par le premier compresseur (1) et le compresse additionnellement.
PCT/EP2009/001169 2008-05-14 2009-02-19 Ensemble de compresseurs WO2009138143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810023594 DE102008023594A1 (de) 2008-05-14 2008-05-14 Kompressoreinheit
DE102008023594.6 2008-05-14

Publications (1)

Publication Number Publication Date
WO2009138143A1 true WO2009138143A1 (fr) 2009-11-19

Family

ID=40732075

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/001169 WO2009138143A1 (fr) 2008-05-14 2009-02-19 Ensemble de compresseurs

Country Status (2)

Country Link
DE (1) DE102008023594A1 (fr)
WO (1) WO2009138143A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047821A1 (de) * 2010-10-07 2012-04-12 Daimler Ag Luftverdichtungseinrichtung für einen Kraftwagen sowie Verfahren zum Betreiben einer solchen Luftverdichtungseinrichtung
DE102011083614A1 (de) 2011-03-01 2012-09-06 Continental Teves Ag & Co. Ohg Trocknerschaltung für eine pneumatische Regelvorrichtung eines Fahrzeugs
DE102011121056A1 (de) * 2011-12-14 2013-06-20 Wabco Gmbh Verdichter zum Einsatz in einem Luftfedersystem sowie ein Verfahren zum Betrieb eines solchen Luftfedersystems
DE202014007963U1 (de) * 2014-10-01 2016-01-05 Oerlikon Leybold Vacuum Gmbh Vakuumpumpsystem
DE102015222230B4 (de) * 2015-11-11 2021-10-28 Continental Teves Ag & Co. Ohg Geschlossene Niveauregelanlage mit zwei Verdichtern
DE102015223614B4 (de) * 2015-11-30 2021-09-09 Continental Teves Ag & Co. Ohg Geschlossene niveauregelnde Anlage für Fahrzeuge mit druckgeregeltem Zusatzverbraucher
DE102016111100A1 (de) * 2016-06-17 2017-12-21 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Ventileinrichtung zur Leistungssteigerung mehrstufiger Verdichtereinheiten
DE102017004369A1 (de) 2017-05-05 2018-11-08 Wabco Gmbh Verfahren zum Betreiben einer Druckregelanlage mit einem mehrstufigen Kompressor, sowie Druckregelanlage
DE102017004360A1 (de) * 2017-05-05 2018-11-08 Wabco Gmbh Verfahren zum Betreiben einer Druckregelanlage mit einem mehrstufigen Kompressor, sowie Druckregelanlage
DE102022100812A1 (de) 2022-01-14 2023-07-20 Illinois Tool Works Inc. Kompressoranordnung für eine vorrichtung zum bedarfsweisen aufblasen und/oder reparieren von aufblasbaren artikeln oder erzeugnissen
DE102022106496A1 (de) 2022-03-21 2023-09-21 Zf Cv Systems Global Gmbh Drucklufterzeugungseinrichtung eines Fahrzeugs und Verfahren zu deren Betreiben

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940779C (de) * 1950-11-16 1956-03-29 Elektron Co M B H Zweizylindriger Kolbenverdichter
EP0496958A1 (fr) * 1991-01-31 1992-08-05 Robert Bosch Gmbh Système de freinage à l'air comprimé pour véhicules
DE19962128A1 (de) * 1998-12-22 2000-07-06 Luk Fahrzeug Hydraulik Kompressor
DE10240358A1 (de) * 2002-09-02 2004-03-11 Wabco Gmbh & Co. Ohg Luftfederungsanlage für ein Fahrzeug
DE10354719A1 (de) * 2002-11-27 2004-06-09 Luk Automobiltechnik Gmbh & Co. Kg Fördereinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1686214U (de) 1954-08-16 1954-11-04 Balcke Ag Maschbau Luftgekuehlter, zweistufiger nieder- oder hochdruck-kompressor mit geblaesekuehlung.
US3481532A (en) 1967-12-20 1969-12-02 Ingersoll Rand Co Compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940779C (de) * 1950-11-16 1956-03-29 Elektron Co M B H Zweizylindriger Kolbenverdichter
EP0496958A1 (fr) * 1991-01-31 1992-08-05 Robert Bosch Gmbh Système de freinage à l'air comprimé pour véhicules
DE19962128A1 (de) * 1998-12-22 2000-07-06 Luk Fahrzeug Hydraulik Kompressor
DE10240358A1 (de) * 2002-09-02 2004-03-11 Wabco Gmbh & Co. Ohg Luftfederungsanlage für ein Fahrzeug
DE10354719A1 (de) * 2002-11-27 2004-06-09 Luk Automobiltechnik Gmbh & Co. Kg Fördereinrichtung

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