EP0050770B1 - Compressor unit enclosed in a housing - Google Patents

Compressor unit enclosed in a housing Download PDF

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Publication number
EP0050770B1
EP0050770B1 EP81108136A EP81108136A EP0050770B1 EP 0050770 B1 EP0050770 B1 EP 0050770B1 EP 81108136 A EP81108136 A EP 81108136A EP 81108136 A EP81108136 A EP 81108136A EP 0050770 B1 EP0050770 B1 EP 0050770B1
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EP
European Patent Office
Prior art keywords
air
compressor unit
housing
unit according
compressor
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
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EP81108136A
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German (de)
French (fr)
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EP0050770A1 (en
Inventor
Rudolf Ing. Grad. Hofmann
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ISARTALER SCHRAUBENKOMPRESSOREN GmbH
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ISARTALER SCHRAUBENKOMPRESSOREN GmbH
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Priority to AT81108136T priority Critical patent/ATE10668T1/en
Publication of EP0050770A1 publication Critical patent/EP0050770A1/en
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    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • 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 relates to a compressor unit enclosed by a housing.
  • Such a compressor unit is known from FR-A-1 523 558, in which a fan wheel is arranged in a partition wall of the housing between the motor and the compressor and draws cooling air from an end face of the housing.
  • the motor is provided with a casing, which is provided with inlet and outlet openings within the housing of the compressor unit and through which cooling air is also drawn in, which is then passed to the outside via an air outlet on the top of the part receiving the compressor.
  • the compressor and the associated units are overflowed with the air that has already been used for engine cooling and is therefore already heated, so that the cooling effect in this area is impaired.
  • the noise emission from the fan wheel through the air outlet opening is not damped.
  • a mobile compressor unit in which a fan wheel is also arranged between the motor and the compressor, the cooling air drawn in on one end of the housing flowing longitudinally through the housing and emerging again on the opposite end.
  • the object of the invention is to design a compressor unit of the type specified at the outset in such a way that low noise emission is achieved with effective cooling.
  • Effective cooling of the units arranged around the compressor is achieved by the cooling air intake from one side of the housing and the discharge of the cooling air via the fan wheel arranged in the middle between the motor and the compressor, the noise emission being kept low by the deflection of the cooling air flow above the fan wheel .
  • FIGS. 1 and 2 In a view in FIGS. 1 and 2 in a housing 1 which is rectangular in cross section and in longitudinal section, a diesel engine 2 is arranged in one half of the housing The center of the housing 1 arranged fan wheel 3 is connected, of which only the hood 4 surrounding the fan wheel is shown in FIGS. 1 and 2.
  • a screw compressor 5 is arranged in the other half of the housing 1 on the opposite side of the fan wheel.
  • a cooling air inlet 6 is formed on the front side.
  • a cylindrical oil container 7 is arranged in a vertical position behind the cooling air inlet and contains the oil reservoir required for the screw compressor 5 working with oil injection and is provided with an oil separator.
  • an oil cooler 8 is arranged behind the oil container 7 and extends almost over the entire cross section of the interior of the housing 1.
  • a cylindrical air filter 9 for the air sucked in by the screw compressor is arranged above the screw compressor 5, a pipe socket 10 being guided by the air filter 9 past the oil cooler 8 and opening into the space in front of the oil cooler 8, as is the case here is shown in Fig. 2.
  • the compressor sucks in cold air and not the air which has already been heated by the oil cooler 8.
  • another air filter 11 is arranged next to the latter above the screw compressor 5 and behind the oil cooler 8 and filters the combustion air for the diesel engine 2.
  • a line section 12 is also provided on this air filter 11, which leads past the oil cooler 8 into the space in front of it, so that cool air is sucked into the combustion chambers of the diesel engine 2 and thus more air per unit volume.
  • the cooling air sucked in by the central fan wheel 3 through the cooling air inlet 6 flows upward approximately vertically above the fan wheel 3 and is then directed into an approximately horizontal channel section 13 (FIG. 1) which extends counter to the direction of flow of the sucked-in cooling air and then through a Opening in the top of the housing 1 is deflected upwards.
  • a further channel section 14 is arranged above this opening on the upper side of the housing 1 and runs approximately parallel to section 13 and in the opposite direction.
  • the outlet opening 15 of the exhaust air duct 13, 14 lies with its plane perpendicular to the longitudinal axis of the housing and is directed towards the side opposite the suction side at 6, so that the warm exhaust air cannot get into the cooling air inlet.
  • two exhaust ports 16 of the diesel engine 2 protrude on the upper side of the housing, which are curved in the direction of the exhaust air, as shown in FIG. 1.
  • a drive unit 17 for the hydraulic device is arranged on the left-hand side of the diesel engine 2 shown in FIGS. 1 and 2.
  • a fan wheel 18 (FIG. 2) is arranged on this side, which ensures the cooling air required by the air-cooled diesel engine 2.
  • This is in the illustrated embodiment on the left end of the housing 1 by egg ne suction port 19 arranged on the underside of the housing. This suction opening can also be formed in the left end face of the housing 1.
  • a partition wall can be provided on the left side of the hood 4 of the fan wheel 3 in FIGS. 1 and 2, which extends upwards and the cooling air flow sucked in from the right side deflected above, while on the other side of this partition wall, not shown in detail, the cooling air flow drawn in from the left-hand side is directed upward and conducted into the exhaust air duct 13, 14.
  • a cutout 20 indicated by dashed lines in FIG. 2 can be provided on the upper side of the fan cover 4, through which the cooling air drawn in from the right end face is directed upward.
  • the housing shown in cross section in FIG. 3 can be lined with a sound-absorbing insulating material 21. At 22 handles are shown, which are attached to removable side parts of the housing 1. As shown in FIG. 3, the exhaust air opening 15 extends over the entire width of the housing 1.
  • the cylindrical fan cover 4 is held by struts 23 which are fastened to a flange of the screw compressor 5.
  • the housing 1 is placed on vibration-damping rubber bearings 24 on a frame 25 made of 1-beams. This frame 25 can be arranged stationary or on a chassis.
  • an oil container 26 which contains the lubricating oil required by the diesel engine 2.
  • the diesel engine 2 has no oil pan, rather the oil reservoir usually contained in the oil pan is contained in the container 26.
  • a water-cooled diesel engine or possibly also a gasoline engine can also be provided, the water cooler of the engine being arranged on the side of the fan wheel 18 or the drive 17 for the hydraulic device and the cooling air inlet likewise being arranged on the left side of the housing becomes.
  • the fan wheel 3 is designed such that it generates the required pressure against the cooling air flow built up by the fan wheel 1.8 of the motor.
  • the cross section of the exhaust air duct is designed so large that there is no mutual hindrance or a jam between the two cooling air streams that meet.
  • the opening cross section of the channel section 13, like the outlet opening 15, extends over the entire width of the housing 1.
  • a radial fan can also be arranged between the diesel engine and the screw compressor.
  • a spiral housing is expediently arranged between the compressor and the motor, which directs the exhaust air flow upwards.

Abstract

1. A compressor unit enclosed by a rectangular housing comprising a drive motor (2), a screw compressor (5) and a ventilator wheel (3), wherein the ventilator wheel (3) is disposed between the motor (2) and the screw compresor (5) characterized in that there are provided a cooling air inlet at a face side of the rectangular housing (1) and a passage for the air intaken therethrough extending upwards over the ventilator wheel (3) and passing over to a horizontally extending section (13) followed by a section (14) extending upwards again and in an opposite direction to said horizontal section, which is disposed outside of the housing (1) at its upper side, wherein the outlet opening (15) of this exhaust air passage is directed to that side opposite to the air inlet (6).

Description

Die Erfindung betrifft eine von einem Gehäuse umschlossene Verdichtereinheit nach dem Oberbegriff des Anspruchs 1.The invention relates to a compressor unit enclosed by a housing.

Aus der FR-A-1 523 558 ist eine derartige Verdichtereinheit bekannt, wobei in einer Trennwand des Gehäuses zwischen Motor und Verdichter ein Lüfterrad angeordnet ist, das Kühlluft von einer Stirnseite des Gehäuses ansaugt. Der Motor ist mit einer Umhüllung versehen, die mit Ein- und Auslassöffnungen innerhalb des Gehäuses der Verdichtereinheit versehen ist und durch die ebenfalls Kühlluft angesaugt wird, die dann über einen Luftauslass auf der Oberseite des den Kompressor aufnehmenden Teils nach aussen geleitet wird. Dabei wird der Kompressor mit den zugehörigen Aggregaten von der für die Motorkühlung bereits verwendeten und damit schon erwärmten Luft überströmt, so dass die Kühlwirkung in diesem Bereich beeinträchtigt ist. Ausserdem ist die Schallemission vom Lüfterrad durch die Luftaustrittsöffnung nicht gedämpft.Such a compressor unit is known from FR-A-1 523 558, in which a fan wheel is arranged in a partition wall of the housing between the motor and the compressor and draws cooling air from an end face of the housing. The motor is provided with a casing, which is provided with inlet and outlet openings within the housing of the compressor unit and through which cooling air is also drawn in, which is then passed to the outside via an air outlet on the top of the part receiving the compressor. The compressor and the associated units are overflowed with the air that has already been used for engine cooling and is therefore already heated, so that the cooling effect in this area is impaired. In addition, the noise emission from the fan wheel through the air outlet opening is not damped.

Ferner ist aus der GB-A-485 305 eine fahrbare Verdichtereinheit bekannt, bei der ebenfalls zwischen Motor und Verdichter ein Lüfterrad angeordnet ist, wobei die auf einer Stirnseite des Gehäuses angesaugte Kühlluft in Längsrichtung durch das Gehäuse strömt und auf der gegenüberliegenden Stirnseite wieder austritt.Furthermore, from GB-A-485 305 a mobile compressor unit is known in which a fan wheel is also arranged between the motor and the compressor, the cooling air drawn in on one end of the housing flowing longitudinally through the housing and emerging again on the opposite end.

Der Erfindung liegt die Aufgabe zugrunde, eine Verdichtereinheit der eingangs angegebenen Art so auszubilden, dass bei wirksamer Kühlung eine geringe Schallemission erzielt wird.The object of the invention is to design a compressor unit of the type specified at the outset in such a way that low noise emission is achieved with effective cooling.

Diese Aufgabe wird durch die Merkmale im Kennzeichen des Anspruchs 1 gelöst. Durch die Kühlluftansaugung von einer Seite des Gehäuses und die Ableitung der Kühlluft über dem in der Mitte zwischen Motor und Verdichter angeordneten Lüfterrad wird eine wirksame Kühlung der um den Verdichter angeordneten Aggregate erreicht, wobei durch die Umlenkung des Kühlluftstromes über dem Lüfterrad die Schallemission gering gehalten wird.This object is achieved by the features in the characterizing part of claim 1. Effective cooling of the units arranged around the compressor is achieved by the cooling air intake from one side of the housing and the discharge of the cooling air via the fan wheel arranged in the middle between the motor and the compressor, the noise emission being kept low by the deflection of the cooling air flow above the fan wheel .

Vorteilhafte Ausgestaltungen sind in den weiteren Ansprüchen angegeben.Advantageous refinements are specified in the further claims.

Eine beispielsweise Ausführungsform der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. es zeigen

  • Fig. 1 in einer Seitenansicht schematisch die wesentlichen Bauteile einer Verdichtereinheit
  • Fig. 2 ist eine Draufsicht auf die Verdichtereinheit nach Fig. 1 und
  • Fig. 3 zeigt eine Stirnansicht.
An example embodiment of the invention is explained in more detail below with reference to the drawing. show it
  • Fig. 1 shows a schematic side view of the essential components of a compressor unit
  • Fig. 2 is a plan view of the compressor unit according to Fig. 1 and
  • Fig. 3 shows an end view.

In einem im Querschnitt wie im Längsschnitt rechteckigen Gehäuse 1 ist in der Ansicht nach den Fig. 1 und 2 in der einen Hälfte des Gehäuses ein Dieselmotor 2 angeordnet, der auf der innenliegenden Seite über eine nicht dargestellte, leicht lösbare Kupplung mit einem etwa in der Mitte des Gehäuses 1 angeordneten Lüfterrad 3 verbunden ist, von dem in den Fig. 1 und 2 lediglich die das Lüfterrad umgebende Haube 4 dargestellt ist. Auf der gegenüberliegenden Seite des Lüfterrades ist in der anderen Hälfte des Gehäuses 1 ein Schraubenverdichter 5 angeordnet.In a view in FIGS. 1 and 2 in a housing 1 which is rectangular in cross section and in longitudinal section, a diesel engine 2 is arranged in one half of the housing The center of the housing 1 arranged fan wheel 3 is connected, of which only the hood 4 surrounding the fan wheel is shown in FIGS. 1 and 2. A screw compressor 5 is arranged in the other half of the housing 1 on the opposite side of the fan wheel.

Auf der in den Fig. 1 und 2 rechten Seite des Gehäuses 1 ist auf der Stirnseite ein Kühllufteinlass 6 ausgebildet. Hinter dem Kühllufteinlass ist ein zylindrischer Ölbehälter 7 in senkrechter SteIlung angeordnet, der das für den mit Öleinspritzung arbeitenden Schraubenverdichter 5 erforderliche Ölreservoir enthält und mit einem Ölabscheider versehen ist. In Strömungsrichtung der vom Lüfterrad 3 angesaugten Kühlluft hinter dem Ölbehälter 7 ist ein Ölkühler 8 angeordnet, der sich nahezu über den gesamten Querschnitt des Innenraums des Gehäuses 1 erstreckt. In Strömungsrichtung hinter dem Ölkühler 8 ist über dem Schraubenverdichter 5 ein zylindrischer Luftfilter 9 für die vom Schraubenverdichter angesaugte Luft angeordnet, wobei ein Rohrstutzen 10 von dem Luftfilter 9 an dem Ölkühler 8 vorbei geführt ist und in den Raum vor dem Ölkühler 8 mündet, wie dies in Fig. 2 dargestellt ist. Dadurch saugt der Verdichter kalte Luft und nicht die vom Ölkühler 8 bereits erwärmte Luft an.On the right side of the housing 1 in FIGS. 1 and 2, a cooling air inlet 6 is formed on the front side. A cylindrical oil container 7 is arranged in a vertical position behind the cooling air inlet and contains the oil reservoir required for the screw compressor 5 working with oil injection and is provided with an oil separator. In the flow direction of the cooling air sucked in by the fan wheel 3, an oil cooler 8 is arranged behind the oil container 7 and extends almost over the entire cross section of the interior of the housing 1. In the flow direction behind the oil cooler 8, a cylindrical air filter 9 for the air sucked in by the screw compressor is arranged above the screw compressor 5, a pipe socket 10 being guided by the air filter 9 past the oil cooler 8 and opening into the space in front of the oil cooler 8, as is the case here is shown in Fig. 2. As a result, the compressor sucks in cold air and not the air which has already been heated by the oil cooler 8.

In gleicher Anordnung wie der Luftfilter 9 ist in der Draufsicht nach Fig. 2 neben diesem ein weiterer Luftfilter 11 seitlich über dem Schraubenverdichter 5 und hinter dem Ölkühler 8 angeordnet, der die Verbrennungsluft für den Dieselmotor 2 filtert. Auch an diesem Luftfilter 11 ist ein Leitungsabschnitt 12 vorgesehen, der an dem Ölkühler 8 vorbei in den Raum vor diesem führt, damit in die Verbrennungsräume des Dieselmotors 2 kühle und damit pro Volumeneinheit mehr Luft angesaugt wird.In the same arrangement as the air filter 9, in the plan view according to FIG. 2, another air filter 11 is arranged next to the latter above the screw compressor 5 and behind the oil cooler 8 and filters the combustion air for the diesel engine 2. A line section 12 is also provided on this air filter 11, which leads past the oil cooler 8 into the space in front of it, so that cool air is sucked into the combustion chambers of the diesel engine 2 and thus more air per unit volume.

Die vom zentralen Lüfterrad 3 durch den Kühllufteinlass 6 angesaugte Kühlluft strömt etwa senkrecht über dem Lüfterrad 3 nach oben und wird dann in einen etwa waagrecht verlaufenden Kanalabschnitt 13 geleitet (Fig. 1), der sich entgegen der Strömungsrichtung der angesaugten Kühlluft erstreckt und dann durch eine Öffnung in der Oberseite des Gehäuses 1 nach oben umgelenkt wird. Über dieser Öffnung ist ein weiterer Kanalabschnitt 14 auf der Oberseite des Gehäuses 1 angeordnet, der etwa parallel zu dem Abschnitt 13 und in die Gegenrichtung verläuft. Die Austrittsöffnung 15 des Abluftkanals 13, 14 liegt mit ihrer Ebene senkrecht zur Längsachse des Gehäuses und ist auf die der Ansaugseite bei 6 entgegengesetzte Seite gerichtet, damit die warme Abluft nicht in den Kühllufteinlass gelangen kann.The cooling air sucked in by the central fan wheel 3 through the cooling air inlet 6 flows upward approximately vertically above the fan wheel 3 and is then directed into an approximately horizontal channel section 13 (FIG. 1) which extends counter to the direction of flow of the sucked-in cooling air and then through a Opening in the top of the housing 1 is deflected upwards. A further channel section 14 is arranged above this opening on the upper side of the housing 1 and runs approximately parallel to section 13 and in the opposite direction. The outlet opening 15 of the exhaust air duct 13, 14 lies with its plane perpendicular to the longitudinal axis of the housing and is directed towards the side opposite the suction side at 6, so that the warm exhaust air cannot get into the cooling air inlet.

Vor der Austrittsöffnung 15 des Abluftkanals ragen zwei Abgasstutzen 16 des Dieselmotors 2 auf der Oberseite des Gehäuses vor, die in Richtung der Abluft gekrümmt sind, wie die Fig. 1 zeigt.In front of the outlet opening 15 of the exhaust air duct, two exhaust ports 16 of the diesel engine 2 protrude on the upper side of the housing, which are curved in the direction of the exhaust air, as shown in FIG. 1.

Auf der in den Fig. 1 und 2 linken freiliegenden Seite des Dieselmotors 2 ist eine Antriebseinheit 17 für die hydraulische Einrichtung angeordnet. Ebenso ist auf dieser Seite ein Lüfterrad 18 (Fig. 2) angeordnet, das für die von dem luftgekühlten Dieselmotor 2 benötigte Kühlluft sorgt. Diese wird bei dem dargestellten Ausführungsbeispiel auf der linken Stirnseite des Gehäuses 1 durch eine auf der Unterseite des Gehäuses angeordnete Einlassöffnung 19 angesaugt. Diese Ansaugöffnung kann auch in der linken Stirnfläche des Gehäuses 1 ausgebildet sein.A drive unit 17 for the hydraulic device is arranged on the left-hand side of the diesel engine 2 shown in FIGS. 1 and 2. Likewise, a fan wheel 18 (FIG. 2) is arranged on this side, which ensures the cooling air required by the air-cooled diesel engine 2. This is in the illustrated embodiment on the left end of the housing 1 by egg ne suction port 19 arranged on the underside of the housing. This suction opening can also be formed in the left end face of the housing 1.

Die auf der linken Stirnseite des Gehäuses 1 angesaugte Kühlluft für den Dieselmotor 2 und die auf der rechten Stirnseite des Gehäuses angesaugte Kühlluft für das vom Schraubenverdichter 5 benötigte Öl trifft etwa in der Mitte des Gehäuses im Bereich des Lüfterrades 3 aufeinander und wird nach oben in den Abluftkanal13, 14 geleitet. Um eine kontinuierliche, ungestörte Strömung der beiden entgegengerichteten Kühlluftströme zu erhalten, kann auf der in den Fig. 1 und 2 linken Seite der Haube 4 des Lüfterrades 3 eine Trennwand vorgesehen sein, die sich nach oben erstreckt und den von der rechten Seite angesaugten Kühlluftstrom nach oben umlenkt, während auf der anderen Seite dieser im einzelnen nicht dargestellten Trennwand der von der linken Seite angesaugte Kühlluftstrom nach oben gelenkt und in den Abluftkanal 13, 14 geleitet wird. Zu diesem Zweck kann auf der Oberseite der Lüfterhaube 4 ein in Fig. 2 gestrichelt angedeuteter Ausschnitt 20 vorgesehen sein, durch den die von der rechten Stirnseite angesaugte Kühlluft nach oben gelenkt wird.The cooling air sucked in on the left end of the housing 1 for the diesel engine 2 and the cooling air sucked in on the right end of the housing for the oil required by the screw compressor 5 meet approximately in the middle of the housing in the region of the fan wheel 3 and is directed upwards into the Exhaust duct 13, 14 directed. In order to obtain a continuous, undisturbed flow of the two oppositely directed cooling air flows, a partition wall can be provided on the left side of the hood 4 of the fan wheel 3 in FIGS. 1 and 2, which extends upwards and the cooling air flow sucked in from the right side deflected above, while on the other side of this partition wall, not shown in detail, the cooling air flow drawn in from the left-hand side is directed upward and conducted into the exhaust air duct 13, 14. For this purpose, a cutout 20 indicated by dashed lines in FIG. 2 can be provided on the upper side of the fan cover 4, through which the cooling air drawn in from the right end face is directed upward.

Das in Fig. 3 im Querschnitt dargestellte Gehäuse kann mit einem schalldämpfenden Isoliermaterial 21 ausgekleidet sein. Bei 22 sind Griffe dargestellt, die an abnehmbaren Seitenteilen des Gehäuses 1 angebracht sind. Wie die Fig. 3 zeigt, erstreckt sich die Abluftöffnung 15 über die gesamte Breite des Gehäuses 1.The housing shown in cross section in FIG. 3 can be lined with a sound-absorbing insulating material 21. At 22 handles are shown, which are attached to removable side parts of the housing 1. As shown in FIG. 3, the exhaust air opening 15 extends over the entire width of the housing 1.

Wie Fig. 3 zeigt, ist die zylindrische Lüfterhaube 4 über Streben 23 gehalten, die an einem Flansch des Schraubenverdichters 5 befestigt sind. Das Gehäuse 1 ist über schwingungsdämpfende Gummilager 24 auf einem Rahmen 25 aus 1-Trägern aufgesetzt. Dieser Rahmen 25 kann stationär oder auf einem Fahrgestell angeordnet sein.As shown in FIG. 3, the cylindrical fan cover 4 is held by struts 23 which are fastened to a flange of the screw compressor 5. The housing 1 is placed on vibration-damping rubber bearings 24 on a frame 25 made of 1-beams. This frame 25 can be arranged stationary or on a chassis.

In der Draufsicht nach Fig. 2 ist in der rechten Hälfte des Gehäuses 1 neben dem Schraubenverdichter 5 ein Ölbehälter 26 dargestellt, der das vom Dieselmotor 2 benötigte Schmieröl enthält. Bei der dargestellten Ausführungsform hat der Dieselmotor 2 keine Ölwanne, vielmehr ist das üblicherweise in der Ölwanne enthaltene Ölreservoir in dem Behälter 26 enthalten.In the top view according to FIG. 2, in the right half of the housing 1, in addition to the screw compressor 5, an oil container 26 is shown, which contains the lubricating oil required by the diesel engine 2. In the illustrated embodiment, the diesel engine 2 has no oil pan, rather the oil reservoir usually contained in the oil pan is contained in the container 26.

Die zentrale Anordnung des Lüfterrades 3 mit Anordnung des Ölkühlers 8 praktisch über den gesamten Ansaugquerschnitt und zusätzlicher Anordnung des Ölbehälters 7 im Einlassbereich der Kühlluft einerseits und mehrfacher Umlenkung der Abluft in den Kanalabschnitten 13, 14 andererseits ergibt eine gute Schalldämpfung. Dadurch, dass beide Seiten des Dieselmotors 2 für Antriebszwecke ausgenutzt sind, ergibt sich ein wirtschaftlicher Aufbau, wobei durch die nicht dargestellte Kupplung zwischen Lüfterrad 3 und Dieselmotor 2 auch nur eine Antriebsseite in Betrieb genommen werden kann. Insgesamt ergibt sich durch die beschriebene Anordnung eine sehr kompakte und wirtschaftliche Verdichtereinheit mit dieselmotorgetriebenem Schraubenverdichter. __The central arrangement of the fan wheel 3 with the arrangement of the oil cooler 8 practically over the entire intake cross section and additional arrangement of the oil container 7 in the inlet region of the cooling air on the one hand and multiple deflection of the exhaust air in the duct sections 13, 14 on the other hand results in good sound absorption. The fact that both sides of the diesel engine 2 are used for drive purposes results in an economical construction, with the coupling (not shown) between the fan wheel 3 and the diesel engine 2 allowing only one drive side to be put into operation. Overall, the arrangement described results in a very compact and economical compressor unit with a diesel engine-driven screw compressor. __

Anstelle eines luftgekühlten Dieselmotors 2 kann auch ein wassergekühlter Dieselmotor oder gegebenenfalls auch ein Benzinmotor vorgesehen werden, wobei der Wasserkühler des Motors auf der Seite des Lüfterrades 18 bzw. des Antriebs 17 für die hydraulische Einrichtung angeordnet und der Kühllufteinlass ebenfalls auf der linken Seite des Gehäuses angeordnet wird.Instead of an air-cooled diesel engine 2, a water-cooled diesel engine or possibly also a gasoline engine can also be provided, the water cooler of the engine being arranged on the side of the fan wheel 18 or the drive 17 for the hydraulic device and the cooling air inlet likewise being arranged on the left side of the housing becomes.

Das Lüfterrad 3 ist so ausgelegt dass es den erforderlichen Druck gegen den vom Lüfterrad 1.8 des Motors aufgebauten Kühlluftstrom erzeugt. Insbesondere ist der Querschnitt des Abluftkanals so gross ausgelegt, dass keine gegenseitige Behinderung oder ein Stau der beiden aufeinandertreffenden Kühlluftströme auftritt. Der Öffnungsquerschnitt des Kanalabschnitts 13 erstreckt sich wie die Austrittsöffnung 15 über die gesamte Breite des Gehäuses 1.The fan wheel 3 is designed such that it generates the required pressure against the cooling air flow built up by the fan wheel 1.8 of the motor. In particular, the cross section of the exhaust air duct is designed so large that there is no mutual hindrance or a jam between the two cooling air streams that meet. The opening cross section of the channel section 13, like the outlet opening 15, extends over the entire width of the housing 1.

Anstelle eines Axiallüfters kann auch ein Radiallüfter zwischen Dieselmotor und Schraubenverdichter angeordnet werden. In diesem Falle wird zweckmässigerweise ein Spiralgehäuse zwischen Verdichter und Motor angeordnet, das den Abluftstrom nach oben leitet.Instead of an axial fan, a radial fan can also be arranged between the diesel engine and the screw compressor. In this case, a spiral housing is expediently arranged between the compressor and the motor, which directs the exhaust air flow upwards.

Claims (11)

1. A compressor unit enclosed by a rectangular housing comprising a drive motor (2), a screw compressor (5) and a ventilator wheel (3), wherein the ventilator wheel (3) is disposed between the motor (2) and the screw compresor (5) characterized in that there are provided a cooling air inlet at a face side of the rectangular housing (1) and a passage for the air intaken therethrough extending upwards over the ventilator wheel (3) and passing over to a horizontally extending section (13) followed by a section (14) extending upwards again and in an opposite direction to said horizontal section, which is disposed outside of the housing (1) at its upper side, wherein the outlet opening (15) of this exhaust air passage is directed to that side opposite to the air inlet (6).
2. A compressor unit according to claim 1, characterized in that a driving mechanism (17) for a hydraulic device is provided at the exposed side of the motor (2).
3. A compressor unit according to claim 2, characterized in that the motor (2) is an air cooled Diesel engine and that a further ventilator wheel (18) is disposed at the side of the driving mechanism (17) for the hydraulic device for intaking the cooling air required for the Diesel engine via an air inlet (19) provided at the face side associated therewith.
4. A compressor unit according to anyone of the claims 1 to 3, characterized in that the centrally located ventilator wheel (3) intakes the cooling air demanded for cooling the oil required by the srew compressor (5) at the face side opposite to the motor through the air inlet (6), wherein the oil tank and the oil cooler for the screw compressor are arranged in flow direction of this cooling air stream.
5. A compressor unit according to anyone of the preceding claims, characterized in that a releasable clutch is disposed between the ventilator wheel (3) and the motor (2).
6. A compressor unit according to anyone of the preceding claims, characterized in that in the region of the ventilator wheel (3) a partition wall is provided between the cooling air streams taken in from the opposite sides of the housing (1), said partition wall directs both cooling air streams upwards into the exhaust air passage (13, 14).
7. A compressor unit according to anyone of the preceding claims, characterized in that the ventilator wheel (3) is encircled by a cylindrical dome (4).
8. A compressor unit according to claim 7, characterized that the ventilator dome (4) is provided at its upper side with a recess (20) for the exhaust air stream directed upwards.
9. A compressor unit according to anyone of the preceding claims, characterized in that the exhaust gas conduits of the motor (2) protrude from the outlet opening (15) of the exhaust air at the upper side of the housing (1) and being curved in the direction of the exhaust gas stream.
10. A compressor unit according to anyone of the preceding claims 4 to 9, characterized in that above the screw compressor (5) an air cleaner (9) is disposed having an intake conduit (10) which is passed past the oil cooler (8) into a space of the cooling air inlet (6) located in front of said cooler (8).
11. A compressor unit according to claim 10, characterized in that besides the air cleaner (9) for the intaken air for the screw compressor (5) a further air cleaner (11) for the combustion air required by the motor (2) is provided, the intake conduit (12) of which protrudes into the space of the cooling air inlet (6) located in front of the air cooler (8).
EP81108136A 1980-10-28 1981-10-09 Compressor unit enclosed in a housing Expired EP0050770B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108136T ATE10668T1 (en) 1980-10-28 1981-10-09 ENCLOSED COMPRESSOR UNIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8028696U 1980-10-28
DE19808028696U DE8028696U1 (en) 1980-10-28 1980-10-28 COMPRESSOR UNIT ENCLOSED IN A HOUSING

Publications (2)

Publication Number Publication Date
EP0050770A1 EP0050770A1 (en) 1982-05-05
EP0050770B1 true EP0050770B1 (en) 1984-12-05

Family

ID=6720079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108136A Expired EP0050770B1 (en) 1980-10-28 1981-10-09 Compressor unit enclosed in a housing

Country Status (3)

Country Link
EP (1) EP0050770B1 (en)
AT (1) ATE10668T1 (en)
DE (2) DE8028696U1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325193A1 (en) * 1983-07-13 1985-01-24 Bauer Schraubenverdichter GmbH, 8190 Wolfratshausen Screw compressor in compact arrangement
US5137434A (en) * 1990-10-04 1992-08-11 Devilbiss Air Power Company Universal motor oilless air compressor
FR2672941A1 (en) * 1991-02-14 1992-08-21 Herault Patrick Improved operating method for self-contained air compressors with indirect drive
FR2693239B1 (en) * 1992-07-02 1994-09-30 Belair Device for the production and storage of compressed air.
US5354182A (en) * 1993-05-17 1994-10-11 Vickers, Incorporated Unitary electric-motor/hydraulic-pump assembly with noise reduction features
US6991436B2 (en) 2002-07-29 2006-01-31 Powermate Corporation Air compressor mounted on a compressor tank
CN103867418B (en) * 2014-03-31 2016-04-27 苏州汉纳机械有限公司 A kind of diesel-driven air compressor system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB100635A (en) * 1915-06-04 1916-09-14 Samuel Duncan Black Improvements in "Air Compressors".
GB485305A (en) * 1936-01-17 1938-05-18 Sebia Soc D Expl De Brevets Po Improvements in or relating to transportable motor-compressor units
FR1128406A (en) * 1954-10-27 1957-01-04 Westinghouse Freins & Signaux Block and radiator assembly for compressors
FR1523558A (en) * 1967-04-25 1968-05-03 Worthington Corp Motor driven compressor unit
US3478958A (en) * 1968-01-11 1969-11-18 Ingersoll Rand Co Housing for portable machines
US3666042A (en) * 1971-02-02 1972-05-30 Jerzy Henryk Cederbaum Method for eliminating noise from a motor power unit and device for the purpose
US4022550A (en) * 1976-03-19 1977-05-10 Gardner-Denver Company Enclosed compressor unit
FR2420043A1 (en) * 1978-03-16 1979-10-12 Maco Meudon Sa Mobile air compressor - is driven by IC engine enclosed in noise reducing enclosure ventilated by fan

Also Published As

Publication number Publication date
EP0050770A1 (en) 1982-05-05
ATE10668T1 (en) 1984-12-15
DE3167649D1 (en) 1985-01-17
DE8028696U1 (en) 1981-07-23

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