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EP0360048A2 - Installation for producing transport air - Google Patents

Installation for producing transport air Download PDF

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Publication number
EP0360048A2
EP0360048A2 EP89116045A EP89116045A EP0360048A2 EP 0360048 A2 EP0360048 A2 EP 0360048A2 EP 89116045 A EP89116045 A EP 89116045A EP 89116045 A EP89116045 A EP 89116045A EP 0360048 A2 EP0360048 A2 EP 0360048A2
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EP
European Patent Office
Prior art keywords
air
compressor
housing
intake opening
electric motor
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Withdrawn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
EP89116045A
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German (de)
French (fr)
Other versions
EP0360048A3 (en
Inventor
Peter Wilms
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0360048A2 publication Critical patent/EP0360048A2/en
Publication of EP0360048A3 publication Critical patent/EP0360048A3/en
Withdrawn legal-status Critical Current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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids

Definitions

  • the invention is directed to a device for generating conveying air for blowable media to be transported from silos, in particular the invention is directed to a conveying air compressor which can be carried on silo vehicles.
  • Silo vehicles that transport inflatable media such as sand, flour, lignite dust, plastic granules or the like. are usually equipped with compressors that generate the air flow necessary to convey these substances. Motor-driven rotary lobe blowers are often used.
  • the object of the invention is therefore to provide a solution with which sustainable noise reduction can be achieved when operating such air compressors.
  • the invention therefore provides that at least one ventila between the electric motor and the compressor torrad is provided, the air intake opening being arranged upstream of the cooling fins of the electric motor in the flow direction of the air drawn in by the fan wheel and the compressor intake port being arranged downstream.
  • the sucked-in air is first used to cool the electric motor before it is sucked in by the compressor, i.e.
  • the housing is always flushed with a large amount of cooling air during operation, which can then be sucked in directly by the compressor as working air.
  • the silo vehicles do not necessarily have to be equipped with conveying air compressors; here it is often sufficient if they are available to the end user, for example when large quantities of plastic granules are delivered for further processing.
  • the invention sees in A further embodiment provides that the entire unit is accommodated on a chassis, so that it can be moved by one person, for example from the storage silo to the storage silo, if appropriate silo vehicles deliver materials. Full sound insulation is also guaranteed in this case.
  • the device generally designated 1 has, in an approximately cross-sectionally U-shaped housing 2 according to FIG. 2, an electric motor 3, a fan wheel 4, a clutch 5 and a compressor 6 in a uniaxial construction from left to right.
  • the intake manifold of the compressor is designated 7, the compressed air discharge line 8.
  • the common housing 2 is additionally housed in a soundproofed capsule 9, which is only indicated in FIG. 2 and is completely missing in FIG. 1.
  • An air intake opening 10 is provided in the bottom left of the housing in FIG. 2, in which a grille, designated 11, is used to keep dirt out.
  • the fan wheel 4 sucks in air through the opening 10 or the grille 11, which is indicated by an arrow 12.
  • the ventilation wheel 4 then leads this air past the cooling fins 13 of the electric motor 3 to the intake manifold 7 of the compressor, this air movement is indicated by the arrow 14 in FIG. 2.
  • the compressor 6 is also cooled at the same time.
  • the sucked-in air serves as conveying air and is compressed for further use by the air supply line 8.
  • suction opening 10 can be equipped with additional baffles that prevent the emission of sound, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

With a device for producing transport air for pneumatically conveyable media to be transported out of bulk containers, especially a transport air compressor to be carried on bulk transporters, the intention is to provide a solution with which lasting noise reduction during the operation of such transport-air compressors can be achieved. This is achieved by the fact that the compressor (6) is accommodated coaxially with an electric driving motor (3) in a closed housing (2) with an air intake opening (10) and an outlet pipe (8) for the transport air. <IMAGE>

Description

Die Erfindung richtet sich auf eine Vorrichtung zur Erzeu­gung von Förderluft für aus Silos zu transportierende, ver­blasbare Medien, insbesondere richtet sich die Erfindung auf einen auf Silofahrzeugen mitführbaren Förderluftkom­pressor.The invention is directed to a device for generating conveying air for blowable media to be transported from silos, in particular the invention is directed to a conveying air compressor which can be carried on silo vehicles.

Silofahrzeuge, die verblasbare Medien transportieren, wie Sand, mehl, braunkohlenstaub, Kunststoffgranulate oder dgl. mehr. sind in der Regel mit Kompressoren ausgerüstet, die den für die Förderung dieser Stoffe notwendigen Luft­strom erzeugen. Dabei werden häufig motorgetriebene Dreh­kolbengebläse eingesetzt.Silo vehicles that transport inflatable media such as sand, flour, lignite dust, plastic granules or the like. are usually equipped with compressors that generate the air flow necessary to convey these substances. Motor-driven rotary lobe blowers are often used.

Ein besonderer Nachteil der eingesetzten Kompressoren mit ihren Antriebsaggregaten besteht in der hohen Geräuschent­wicklung, die dazu führt, daß solche Silofahrzeuge gerade in Ballungsgebieten nur zu bestimmten Tageszeiten entleert werden können, was für die entsprechenden Speditionen zu unzumutbaren Standzeiten ihrer Silofahrzeuge führen kann. Es sind daher schon Vorschläge gemacht worden, die Ge­räuschentwicklung zu reduzieren, etwa durch Schalldämpfung der Förderstrecke, wie dies z.B. in der DE-PS 30 39 334 be­schrieben ist.A particular disadvantage of the compressors used with their drive units is the high level of noise, which means that such silo vehicles can only be emptied at certain times of the day, especially in metropolitan areas, which can lead to unreasonable downtimes for their silo vehicles for the corresponding forwarding agents. There have therefore already been proposals to reduce the noise, for example by soundproofing the conveyor line, as described for example in DE-PS 30 39 334.

Es hat sich gezeigt, daß die vorgeschlagenen Lösungen alle noch nicht zu den gewünschten Lärmreduzierungen führen.It has been shown that the proposed solutions do not yet lead to the desired noise reduction.

Aufgabe der Erfindung ist daher die Schaffung einer Lö­sung, mit der eine nachhaltige Lärmreduzierung bei Betrieb derartiger Förderluftkompressoren erreichbar ist.The object of the invention is therefore to provide a solution with which sustainable noise reduction can be achieved when operating such air compressors.

Diese Aufgabe wird gemäß der Erfindung mit einer Vorrich­tung der eingangs bezeichneten Art dadurch gelöst, daß der Kompressor einachsig mit einem Elektroantriebsmotor in ei­nem geschlossenen Gehäuse mit einer Luftansaugöffnung und einer Austrittsleitung für die Förderluft untergebracht ist.This object is achieved according to the invention with a device of the type mentioned above in that the compressor is accommodated uniaxially with an electric drive motor in a closed housing with an air intake opening and an outlet line for the conveying air.

Es hat sich gezeigt, daß die einachsige Anordnung in einem Kapselgehäuse bereits zu erheblichen Lärmreduzierungen führt, da gerade die hochfrequente Schallemission durch ein solches Gehäuse weitestgehend vermieden wird.It has been shown that the uniaxial arrangement in a capsule housing already leads to considerable noise reductions, since the high-frequency noise emission is largely avoided by such a housing.

Es sind bereits früher Versuche gemacht worden, Rotations­kolben-Kompressoren zu kapseln, ein wesentlicher Nachteil besteht aber in der Erwärmung der Aggregate und der man­gelnden Kühlung bei Kapselung, was zur Zerstörung der Kom­pressoren geführt hat.Attempts have already been made to encapsulate rotary piston compressors, but a major disadvantage is the heating of the units and the lack of cooling when encapsulating, which has led to the destruction of the compressors.

In Ausgestaltung sieht daher die Erfindung vor, daß zwi­schen Elektromotor und Kompressor wenigstens ein Ventila­ torrad vorgesehen ist, wobei in besonderer Ausgestaltung die Luftansaugöffnung in Strömungsrichtung der durch das Ventilatorrad angesaugten Luft stromaufwärts der Kühlrip­pen des Elektromotors angeordnet und der Kompressoransaug­stutzen stromabwärts angeordnet ist.In an embodiment, the invention therefore provides that at least one ventila between the electric motor and the compressor torrad is provided, the air intake opening being arranged upstream of the cooling fins of the electric motor in the flow direction of the air drawn in by the fan wheel and the compressor intake port being arranged downstream.

Durch diese Gestaltung wird die angesaugte Luft zunächst zur Kühlung des Elektromotors herangezogen, bevor sie vom Kompressor angesaugt wird, d.h. das Gehäuse wird bei Be­trieb stets von einer großen Menge an Kühlluft durchspült, die dann direkt vom Kompressor als Arbeitsluft angesaugt werden kann.With this design, the sucked-in air is first used to cool the electric motor before it is sucked in by the compressor, i.e. The housing is always flushed with a large amount of cooling air during operation, which can then be sucked in directly by the compressor as working air.

Zweckmäßig ist es, die Luftansaugöffnung mit einem Filter­sieb oder dgl. auszurüsten.It is useful to equip the air intake opening with a filter screen or the like.

Es hat sich gezeigt, daß ein zusätzlicher Effekt der Schalldämpfung dadurch erreichbar ist, daß das die Aggre­gate umgebende Gehäuse zusätzlich in einem weiteren Schall­schutzgehäuse untergebracht ist.It has been shown that an additional effect of sound absorption can be achieved in that the housing surrounding the units is additionally housed in a further soundproof housing.

Es gibt darüber hinaus Einsatzgebiete, bei denen die Silo­fahrzeuge nicht zwingend jeweils mit Förderluftkompresso­ren ausgerüstet werden müssen, hier reicht es häufig, wenn sie beim Endverbraucher zur Verfügung stehen, etwa wenn große Mengen an Kunststoffgranulaten zur Weiterverarbei­tung angeliefert werden. Hierfür sieht die Erfindung in weiterer Ausgestaltung vor, daß das Gesamtaggregat auf einem Fahrgestell untergebracht ist, so daß es z.B. von Aufnahmesilo zu Aufnahmesilo von einr Person verfahren werden kann, wenn entsprechende Silofahrzeuge Materialien anliefern. Auch in diesem Falle ist ein voller Schall­schutz gewährleistet.There are also areas of application in which the silo vehicles do not necessarily have to be equipped with conveying air compressors; here it is often sufficient if they are available to the end user, for example when large quantities of plastic granules are delivered for further processing. For this, the invention sees in A further embodiment provides that the entire unit is accommodated on a chassis, so that it can be moved by one person, for example from the storage silo to the storage silo, if appropriate silo vehicles deliver materials. Full sound insulation is also guaranteed in this case.

Die Erfindung ist nachstehend anhand der Zeichnung bei­spielsweise näher erläutert. Diese zeigt in

  • Fig. 1 eine räumliche, vereinfachte Darstellung der Vor­richtung sowie in
  • Fig. 2 einen Schnitt gemäß Linie II-II in Fig. 1 ebenfalls in vereinfachter Darstellung.
The invention is explained below with reference to the drawing, for example. This shows in
  • Fig. 1 is a spatial, simplified representation of the device and in
  • Fig. 2 shows a section along line II-II in Fig. 1 also in a simplified representation.

Die allgemein mit 1 bezeichnete Vorrichtung weist in einem etwa querschnittlich U-förmigen Gehäuse 2 gemäß Fig. 2 von links nach rechts einen Elektromotor 3, ein Lüfterrad 4, eine Kupplung 5 und einen Kompressor 6 in einachsiger Bau­weise auf. Der Ansaugstutzen des Kompressors ist mit 7 be­zeichnet, die Druckluftabführleitung mit 8.The device, generally designated 1, has, in an approximately cross-sectionally U-shaped housing 2 according to FIG. 2, an electric motor 3, a fan wheel 4, a clutch 5 and a compressor 6 in a uniaxial construction from left to right. The intake manifold of the compressor is designated 7, the compressed air discharge line 8.

Das gemeinsame Gehäuse 2 ist zusätzlich in einer schallge­dämpften Kapsel 9 untergebracht, die in Fig. 2 lediglich angedeutet ist und in Fig. 1 ganz fehlt. Im Gehäuseboden ist in Fig. 2 links unten eine Luftansaug­öffnung 10 vorgesehen, in der ein mit 11 bezeichnetes Git­ter zum Abhalten von Schmutz eingesetzt ist.The common housing 2 is additionally housed in a soundproofed capsule 9, which is only indicated in FIG. 2 and is completely missing in FIG. 1. An air intake opening 10 is provided in the bottom left of the housing in FIG. 2, in which a grille, designated 11, is used to keep dirt out.

Wird nun der Elektromotor 3 betätigt, um den Kompressor 6 anzutreiben, saugt das Lüfterrad 4 Luft durch die Öffnung 10 bzw. das Gitter 11 an, was durch einen Pfeil 12 ange­deutet ist. Das Lüftungsrad 4 führt diese Luft dann an den Kühlrippen 13 des Elektromotors 3 vorbei zum Ansaugstutzen 7 des Kompressors, diese Luftbewegung ist mit dem Pfeil 14 in Fig. 2 angedeutet. Damit ist eine optimale Kühlung des Elektromotors 3 gewährleistet. Durch die Anordnung des Ansaugstutzens 7 am anderen Ende des Gesamtaggregates wird gleichzeitig auch der Kompressor 6 mitgekühlt. Die ange­saugte Luft dient als Förderluft und wird entsprechend ver­dichtet durch die Luftzuführleitung 8 der weiteren Verwen­dung zugeführt.If the electric motor 3 is now actuated to drive the compressor 6, the fan wheel 4 sucks in air through the opening 10 or the grille 11, which is indicated by an arrow 12. The ventilation wheel 4 then leads this air past the cooling fins 13 of the electric motor 3 to the intake manifold 7 of the compressor, this air movement is indicated by the arrow 14 in FIG. 2. This ensures optimal cooling of the electric motor 3. By arranging the intake port 7 at the other end of the overall unit, the compressor 6 is also cooled at the same time. The sucked-in air serves as conveying air and is compressed for further use by the air supply line 8.

Natürlich ist das beschriebene Ausführungsbeispiel der Er­findung noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken zu verlassen. So kann insbesondere die An­saugöffnung 10 mit weiteren, die Emission von Schall ver­hindernden Schikanen ausgerüstet sein und dgl.Of course, the described embodiment of the invention can be modified in many ways without departing from the basic idea. In particular, the suction opening 10 can be equipped with additional baffles that prevent the emission of sound, and the like.

Claims (6)

1. Vorrichtung zur Erzeugung von Förderluft für aus Silos zu transportierende, verblasbare Medien, insbesondere auf Silofahrzeugen mitführbarer Förderluftkompressor,
dadurch gekennzeichnet,
daß der Kompressor (6) einachsig mit einem Elektroantriebs­motor (3) in einem geschlossenen Gehäuse (2) mit einer Luftansaugöffnung (10) und einer Austrittsleitung (8) für die Förderluft untergebracht ist.1. Device for generating conveying air for blowable media to be transported from silos, in particular conveying air compressor that can be carried on silo vehicles,
characterized,
that the compressor (6) is housed uniaxially with an electric drive motor (3) in a closed housing (2) with an air intake opening (10) and an outlet line (8) for the conveying air. 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß zwischen Elektromotor (3) und Kompressor (6) wenig­stens ein Ventilatorrad (4) vorgesehen ist.2. Device according to claim 1,
characterized,
that at least one fan wheel (4) is provided between the electric motor (3) and the compressor (6). 3. Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Luftansaugöffnung (10) in Strömungsrichtung (14) der durch das Ventilatorrad (4) angesaugten Luft stromauf­wärts der Kühlrippen (13) des Elektromotors (3) angeordnet und der Kompressoransaugstutzen (7) stromabwärts angeord­net ist.3. Device according to claim 1 or 2,
characterized,
that the air intake opening (10) in the flow direction (14) of the air sucked in by the fan wheel (4) is arranged upstream of the cooling fins (13) of the electric motor (3) and the compressor intake port (7) is arranged downstream. 4. Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
daß die Luftansaugöffnung (10) mit einem Filtersieb (11) oder dgl. ausgerüstet ist.4. Device according to one of the preceding claims,
characterized,
that the air intake opening (10) is equipped with a filter screen (11) or the like. 5. Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
daß das die Aggregate (3-6) umgebende Gehäuse (2) zusätz­lich in einem weiteren Schallschutzgehäuse (9) unterge­bracht ist.5. Device according to one of the preceding claims,
characterized,
that the housing (2) surrounding the units (3-6) is additionally accommodated in a further soundproof housing (9). 6. Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
daß das Gesamtaggregat (1) auf einem Fahrgestell unterge­bracht ist.6. Device according to one of the preceding claims,
characterized,
that the entire unit (1) is housed on a chassis.
EP89116045A 1988-09-17 1989-08-31 Installation for producing transport air Withdrawn EP0360048A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883831703 DE3831703C1 (en) 1988-09-17 1988-09-17
DE3831703 1988-09-17

Publications (2)

Publication Number Publication Date
EP0360048A2 true EP0360048A2 (en) 1990-03-28
EP0360048A3 EP0360048A3 (en) 1990-07-04

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ID=6363190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116045A Withdrawn EP0360048A3 (en) 1988-09-17 1989-08-31 Installation for producing transport air

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EP (1) EP0360048A3 (en)
DE (1) DE3831703C1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038872A1 (en) * 1990-12-03 1992-06-04 Mannesmann Ag Air-cooled rotary exhauster or compressor - incorporates two=part sound dampening cowl leaving intervening space surrounding compressor housing
EP0547254A1 (en) * 1991-12-14 1993-06-23 Peter Wilms Apparatus for generating an air/oxygen stream in biological purification plants
BE1008367A3 (en) * 1994-01-25 1996-04-02 Atlas Copco Airpower Nv Compressor unit
EP0994258A1 (en) * 1998-10-15 2000-04-19 Anest Iwata Corporation Scroll fluid machine
US6720098B2 (en) 2001-05-16 2004-04-13 General Motors Corporation Compressor arrangement for the operation of a fuel cell system
BE1016095A3 (en) * 2004-06-16 2006-03-07 Atlas Copco Airpower Nv Compressor, has cooling system integrated into motor mantle with double wall construction and connections to lubricant line
EP1898484A2 (en) 2006-09-07 2008-03-12 Yamaha Corporation Apparatus for supplying air to fuel cell
WO2009018724A1 (en) * 2007-07-20 2009-02-12 Xi'an Unionfilter Purification Equipment Co., Ltd. A blower or an air inducing device
CN109185129A (en) * 2018-10-23 2019-01-11 珠海格力节能环保制冷技术研究中心有限公司 A kind of scroll air compressor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107374A1 (en) * 1991-03-08 1992-09-10 Peter Wilms COMPRESSOR FOR SILO VEHICLES
DE29512114U1 (en) * 1995-07-27 1996-03-14 Wilms Fahrzeugtechnik GmbH, 45731 Waltrop Charge air cooling, especially in a silo vehicle
DE10020109A1 (en) * 2000-04-22 2001-10-25 Mann & Hummel Filter Cladding for air-suction machine incorporates resonance chamber, cladding-wall, air filter and sound-radiating components
DE10025035A1 (en) 2000-05-20 2001-11-29 Xcellsis Gmbh Fuel cell system has noise insulating arrangement for damping noise in air path of fuel cell system essentially mounted on areas of air path in which noise emissions are generated
DE10027350B4 (en) * 2000-06-02 2010-05-12 General Motors Corporotion, Detroit Compressor arrangement for the operation of a fuel cell system and a method for cooling and / or sound insulation of a compressor assembly
DE102019004976B3 (en) * 2019-07-18 2021-01-14 KSB SE & Co. KGaA Pump arrangement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB299323A (en) * 1927-10-21 1929-02-14 Swiss Locomotive & Machine Works Improvements in compressed air producing plants
GB861620A (en) * 1958-05-28 1961-02-22 Thomas Industries Inc Improvements in or relating to rotary compressors
FR1523558A (en) * 1967-04-25 1968-05-03 Worthington Corp Motor driven compressor unit
GB1556494A (en) * 1977-08-16 1979-11-28 Holywell Eng Ltd Acoustic silencing of air blowers
EP0014085A1 (en) * 1979-01-30 1980-08-06 Glynwed Group Services Limited Air compressor equipment
US4302160A (en) * 1979-08-01 1981-11-24 Hofmann Jr Rudolf Silently operating fluid pump unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039334C2 (en) * 1980-10-17 1985-07-04 Gebrüder Bühler AG, Uzwil Compressed air generator device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB299323A (en) * 1927-10-21 1929-02-14 Swiss Locomotive & Machine Works Improvements in compressed air producing plants
GB861620A (en) * 1958-05-28 1961-02-22 Thomas Industries Inc Improvements in or relating to rotary compressors
FR1523558A (en) * 1967-04-25 1968-05-03 Worthington Corp Motor driven compressor unit
GB1556494A (en) * 1977-08-16 1979-11-28 Holywell Eng Ltd Acoustic silencing of air blowers
EP0014085A1 (en) * 1979-01-30 1980-08-06 Glynwed Group Services Limited Air compressor equipment
US4302160A (en) * 1979-08-01 1981-11-24 Hofmann Jr Rudolf Silently operating fluid pump unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038872A1 (en) * 1990-12-03 1992-06-04 Mannesmann Ag Air-cooled rotary exhauster or compressor - incorporates two=part sound dampening cowl leaving intervening space surrounding compressor housing
EP0547254A1 (en) * 1991-12-14 1993-06-23 Peter Wilms Apparatus for generating an air/oxygen stream in biological purification plants
BE1008367A3 (en) * 1994-01-25 1996-04-02 Atlas Copco Airpower Nv Compressor unit
EP0994258A1 (en) * 1998-10-15 2000-04-19 Anest Iwata Corporation Scroll fluid machine
US6190145B1 (en) 1998-10-15 2001-02-20 Anest Iwata Corporation Scroll fluid machine
US6720098B2 (en) 2001-05-16 2004-04-13 General Motors Corporation Compressor arrangement for the operation of a fuel cell system
BE1016095A3 (en) * 2004-06-16 2006-03-07 Atlas Copco Airpower Nv Compressor, has cooling system integrated into motor mantle with double wall construction and connections to lubricant line
EP1898484A2 (en) 2006-09-07 2008-03-12 Yamaha Corporation Apparatus for supplying air to fuel cell
EP1898484A3 (en) * 2006-09-07 2008-07-09 Yamaha Corporation Apparatus for supplying air to fuel cell
WO2009018724A1 (en) * 2007-07-20 2009-02-12 Xi'an Unionfilter Purification Equipment Co., Ltd. A blower or an air inducing device
CN109185129A (en) * 2018-10-23 2019-01-11 珠海格力节能环保制冷技术研究中心有限公司 A kind of scroll air compressor

Also Published As

Publication number Publication date
DE3831703C1 (en) 1990-03-08
EP0360048A3 (en) 1990-07-04

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