EP0734775A1 - Cyclone - Google Patents

Cyclone Download PDF

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Publication number
EP0734775A1
EP0734775A1 EP95119816A EP95119816A EP0734775A1 EP 0734775 A1 EP0734775 A1 EP 0734775A1 EP 95119816 A EP95119816 A EP 95119816A EP 95119816 A EP95119816 A EP 95119816A EP 0734775 A1 EP0734775 A1 EP 0734775A1
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EP
European Patent Office
Prior art keywords
cyclone
guide vanes
gases
dust
outlet opening
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Withdrawn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
EP95119816A
Other languages
German (de)
French (fr)
Inventor
Stefan Kochert
Klaus Mössinger
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.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel 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 Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Publication of EP0734775A1 publication Critical patent/EP0734775A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/185—Dust collectors
    • B04C5/187—Dust collectors forming an integral part of the vortex chamber

Definitions

  • the invention relates to a cyclone according to the preamble of the main claim.
  • a disadvantage of this dust separator is that the flow of the air is deflected by 180 ° in several areas, which results in considerable flow losses. In addition, additional components are required for the dust discharge pot.
  • the invention has for its object to provide a cyclone which on the one hand has a high degree of dust separation, on the other hand opposes the air a very low flow resistance.
  • the main advantage of the invention is that the supplied gases experience only a single 180 ° deflection, so that the flow resistance is kept very small.
  • the cyclone is designed in a simple manner essentially from plastic parts.
  • the plastic parts are assembled with suitable plug connections and can be exchanged without any problems.
  • the dust collector is fastened to the housing of the cyclone with a bayonet catch. It is easy to remove and can be emptied from time to time.
  • the lid of the cyclone is also attached to the dust collection container in a simple manner by means of a snap connection and can be easily removed.
  • the swirl of the gas flow is neutralized by the arrangement of guide vanes in the air outlet opening, that is to say the resistance of the cyclone is considerably reduced by orienting the flow.
  • the drawing shows: a cyclone in a half-sectional view.
  • the cyclone shown in the figure consists of a housing 1.
  • an inlet opening 2 is provided for the untreated air.
  • this inlet opening 2 are guide vanes arranged.
  • the cleaned air is deflected and flows according to arrow 7 in the direction of the air outlet opening 8.
  • the cleaned air leaves the cyclone via the air outlet opening 8 and can be fed to an oil bath air filter (not shown here) for further filtration.
  • the lid 4 is arranged with a snap connection on the dust collector 5 and can be easily removed.
  • the dust collector has grip strips 10. These handle strips serve to detach the dust collection container from the housing.
  • the connection between the housing and the dust collector is made via a bayonet lock 11.
  • An advantage of the cyclone is the flat design and the use of simple components that are made of thermoplastic by injection molding.
  • a particular advantage of the cyclone is that the guide wheel or guide vanes 9 contribute to pressure recovery. This means that a possible loss of pressure, which is caused by the rotational movement of the gases, is recovered by this conversion of the rotational movement into a linear movement. This considerably reduces the flow resistance caused by the cyclone.
  • the guide vanes 9 extend beyond the air outlet opening 8. In the figure, this extension of the guide vanes 9 is over the upper edge of the Air outlet opening 8 can be clearly seen. This measure also improves pressure recovery and can basically be used where three-phase flows are to be neutralized.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cyclones (AREA)

Abstract

A cyclone for separating dust from a gas such as the intake air to an IC engine has a cylindrical housing (1) with an air inlet and outlet, to which a dust-collecting chamber (5) is attached with a bayonet connector (11). The housing has deflecting blades (2) to generate vortices. There are more blades (9) near the air outlet (8) for the purified gas. These convert the vortex flow of the air into linear flow and thereby reduce the flow resistance. The gas flows upwards through the cyclone and reverses by 180 deg. at the top before emerging. The lid of the dust collector has snap connectors and a handle.

Description

Die Erfindung betrifft ein Zyklon nach dem Oberbegriff des Hauptanspruchs.The invention relates to a cyclone according to the preamble of the main claim.

Aus der DE-OS 15 76 517 ist ein Staubabscheider mit Zyklonsystem für Verbrennungsmotoren bekannt. Bei diesem Staubabscheider wird die zu reinigende Luft über einen Deckel angesaugt, zu einem Eintrittsschaufelkranz geführt und gelangt über einen Strömungsablenker zur Luftaustrittsöffnung. Der abgeschiedene Staub sammelt sich in einem zusätzlich angeordneten Staubsammeltopf an und kann dort von Zeit zu Zeit entfernt werden.From DE-OS 15 76 517 a dust collector with a cyclone system for internal combustion engines is known. With this dust separator, the air to be cleaned is sucked in through a cover, led to an inlet vane ring and reaches the air outlet opening via a flow deflector. The separated dust collects in an additional dust collector and can be removed from there from time to time.

Ein Nachteil dieses Staubabscheiders liegt darin, daß der Strömungsverlauf der Luft in mehreren Bereichen um 180 ° umgelenkt wird, wodurch erhebliche Strömungsverluste entstehen. Außerdem ist hier ein zusätzlicher Bauteileaufwand für den Staubaustragtopf erforderlich.A disadvantage of this dust separator is that the flow of the air is deflected by 180 ° in several areas, which results in considerable flow losses. In addition, additional components are required for the dust discharge pot.

Der Erfindung liegt die Aufgabe zugrunde ein Zyklon zu schaffen, das einerseits einen hohen Staubabscheidegrad aufweist, andererseits der Luft einen sehr geringen Strömungswiderstand entgegensetzt.The invention has for its object to provide a cyclone which on the one hand has a high degree of dust separation, on the other hand opposes the air a very low flow resistance.

Diese Aufgabe wird ausgehend von dem Oberbegriff des Hauptanspruchs durch die kennzeichnenden Merkmale gelöst.This object is achieved on the basis of the preamble of the main claim by the characterizing features.

Der wesentliche Vorteil der Erfindung liegt darin, daß die zugeführten Gase nur eine einzige 180 ° Umlenkung erfahren, so daß der Strömungswiderstand sehr klein gehalten wird.The main advantage of the invention is that the supplied gases experience only a single 180 ° deflection, so that the flow resistance is kept very small.

Das Zyklon ist in einfacher Weise im wesentlichen aus Kunststoffteilen gestaltet. Die Kunststoffteile sind mit geeigneten Steckverbindungen zusammengefügt und können problemlos ausgetauscht werden.The cyclone is designed in a simple manner essentially from plastic parts. The plastic parts are assembled with suitable plug connections and can be exchanged without any problems.

Gemäß einer Weiterbildung der Erfindung ist der Staubsammelbehälter mit einem Bajonettverschluß an dem Gehäuse des Zyklons befestigt. Damit läßt sich dieser einfach entfernen und kann von Zeit zu Zeit entleert werden. Auch der Deckel des Zyklons ist in einfacher Weise mittels einer Schnappverbindung an dem Staubsammelbehälter befestigt und kann leicht gelöst werden. Durch die Anordnung von Leitschaufeln in der Luftauslaßöffnung wird der Drall der Gasströmung neutralisiert, das heißt, der Widerstand des Zyklons verringert sich durch das Orientieren der Strömung erheblich.According to a development of the invention, the dust collector is fastened to the housing of the cyclone with a bayonet catch. It is easy to remove and can be emptied from time to time. The lid of the cyclone is also attached to the dust collection container in a simple manner by means of a snap connection and can be easily removed. The swirl of the gas flow is neutralized by the arrangement of guide vanes in the air outlet opening, that is to say the resistance of the cyclone is considerably reduced by orienting the flow.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird. Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und wird im folgenden näher erläutert.These and further features of preferred developments of the invention are evident from the claims and also from the description and the drawings, the individual features being implemented individually or in groups in the form of subcombinations in the embodiment of the invention and in other fields, and can represent advantageous and protectable versions for which protection is claimed here. Embodiments of the invention are shown in the drawing and will be explained in more detail below.

Die Zeichnung zeigt:
ein Zyklon in einer Halbschnittdarstellung.The drawing shows:
a cyclone in a half-sectional view.

Der in der Figur gezeigte Zyklon besteht aus einem Gehäuse 1. In dem Gehäuse 1 ist eine Einlaßöffnung 2 für die Rohluft vorgesehen. In dieser Einlaßöffnung 2 sind Leitschaufeln angeordnet. Oberhalb der Leitschaufeln befindet sich eine Leitwand 3, an welcher die mit einem Drall versehene Luft entlangströmt, wobei Staubteilchen nach außen geschleudert werden und im oberen Bereich des Zyklons zwischen der Leitwand 3 und dem Deckel 4 nach außen gelangen. Diese Staubteilchen lagern sich im unteren Bereich 6 des Staubsammelbehälters 5 ab. Die gereinigte Luft wird umgelenkt und strömt gemäß Pfeil 7 in Richtung der Luftaustrittsöffnung 8. In der Luftaustrittsöffnung 8 befinden sich ebenfalls Leitschaufeln 9. Diese kompensieren den Drall bzw. setzen die Drallbewegung in eine Linearbewegung um. Die gereinigte Luft verläßt den Zyklon über die Luftaustrittsöffnung 8 und kann dort einem hier nicht dargestellten Ölbadluftfilter zur weiteren Filtrierung zugeführt werden.The cyclone shown in the figure consists of a housing 1. In the housing 1, an inlet opening 2 is provided for the untreated air. In this inlet opening 2 are guide vanes arranged. Above the guide vanes there is a guide wall 3, along which the air provided with a swirl flows, dust particles being thrown outwards and reaching the outside in the upper region of the cyclone between the guide wall 3 and the cover 4. These dust particles are deposited in the lower area 6 of the dust collecting container 5. The cleaned air is deflected and flows according to arrow 7 in the direction of the air outlet opening 8. In the air outlet opening 8 there are also guide vanes 9. These compensate for the swirl or convert the swirl movement into a linear movement. The cleaned air leaves the cyclone via the air outlet opening 8 and can be fed to an oil bath air filter (not shown here) for further filtration.

Der Deckel 4 ist mit einer Schnappverbindung an dem Staubsammelbehälter 5 angeordnet und kann leicht entfernt werden. Der Staubsammelbehälter weist Griffleisten 10 auf. Diese Griffleisten dienen dazu, den Staubsammelbehälter von dem Gehäuse zu lösen. Die Verbindung zwischen Gehäuse und Staubsammelbehälter erfolgt über einen Bajonettverschluß 11.The lid 4 is arranged with a snap connection on the dust collector 5 and can be easily removed. The dust collector has grip strips 10. These handle strips serve to detach the dust collection container from the housing. The connection between the housing and the dust collector is made via a bayonet lock 11.

Ein Vorteil des Zyklons ist die Flachbauweise und der Einsatz einfacher Bauteile, die aus thermoplastischem Kunststoff im Spritzgießverfahren hergestellt sind.An advantage of the cyclone is the flat design and the use of simple components that are made of thermoplastic by injection molding.

Ein besondere Vorteil des Zyklons besteht ferner darin, daß das Leitrad bzw. die Leitschaufeln 9 zu einer Druckrückgewinnung beitragen. Dies bedeutet, daß ein evtl. Druckverlust, der durch die Rotationsbewegung der Gase verursacht wird, durch diese Umformung der Rotationsbewegung in eine Linearbewegung zurückgewonnen wird. Damit verringert sich der Strömungswiderstand, der durch das Zyklon verursacht wird, erheblich.A particular advantage of the cyclone is that the guide wheel or guide vanes 9 contribute to pressure recovery. This means that a possible loss of pressure, which is caused by the rotational movement of the gases, is recovered by this conversion of the rotational movement into a linear movement. This considerably reduces the flow resistance caused by the cyclone.

Es ist weiterhin von Vorteil, daß die Leitschaufeln 9 über die Luftaustrittsöffnung 8 hinausreichen. In der Figur ist diese Erstreckung der Leitschaufeln 9 bis über die Oberkante der Luftaustrittsöffnung 8 deutlich zu erkennen. Diese Maßnahme verbessert zusätzlich die Druckrückgewinnung und kann grundsätzlich dort eingesetzt werden, wo Drehströmungen neutralisiert werden sollen.It is also advantageous that the guide vanes 9 extend beyond the air outlet opening 8. In the figure, this extension of the guide vanes 9 is over the upper edge of the Air outlet opening 8 can be clearly seen. This measure also improves pressure recovery and can basically be used where three-phase flows are to be neutralized.

Claims (5)

Zyklon zum Abscheiden von Partikeln aus Gasen, insbesondere zum Abscheiden von Staub aus der Ansaugluft einer Brennkraftmaschine mit einem im wesentlichen zylinderförmigen Gehäuse, einer Lufteintrittsöffnung und einer Luftaustrittsöffnung, sowie einem Staubsammelbehälter und einer Austrittsöffnung für die gereinigten Gase, wobei im Bereich der Lufteintrittsöffnung erste Leitschaufeln angeorndet sind zum Erzeugen eines Dralls wobei in der Austrittsöffnung zweite Leitschaufeln angeordnet sind, dadurch gekennzeichnet, daß die zu reinigenden Gase von unten nach oben in den Zyklon einströmen, im oberen Bereich des Zyklons eine Umlenkung um näherungsweise 180 ° erfolgt und über die zweiten Leitschaufeln zur Austrittsöffnung gelangen.Cyclone for separating particles from gases, in particular for separating dust from the intake air of an internal combustion engine with an essentially cylindrical housing, an air inlet opening and an air outlet opening, as well as a dust collector and an outlet opening for the cleaned gases, first guide vanes being arranged in the area of the air inlet opening are for generating a swirl, in which second guide vanes are arranged in the outlet opening, characterized in that the gases to be cleaned flow into the cyclone from bottom to top, in the upper region of the cyclone there is a deflection by approximately 180 ° and via the second guide vanes to the outlet opening reach. Zyklon, insbesondere nach Anspruch 1, dadurch gekennzeichnet, daß zur Erzeugung eines Gegendralls Leitschaufeln vorgesehen sind, welche die Rotationsbewegung der Gase in eine Längsströmungsbewegung der Gase umwandelt, wobei die Leitschaufeln bis in einen freien Raum oberhalb des Ausströmrohres sich erstrecken.Cyclone, in particular according to claim 1, characterized in that guide vanes are provided for generating a counter-swirl which converts the rotational movement of the gases into a longitudinal flow movement of the gases, the guide vanes extending into a free space above the outflow pipe. Zyklon nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Staubsammelbehälter über eine Bajonettverbindung mit dem Gehäuse verbunden ist.Cyclone according to claim 1 and 2, characterized in that the dust collecting container is connected to the housing via a bayonet connection. Zyklon nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß ein mittels einer Schnappverbindung befestigter Deckel den Staubsammeltopf und den Zyklon verschließt.Cyclone according to claim 1, 2 or 3, characterized in that a cover fastened by means of a snap connection closes the dust collecting pot and the cyclone. Zyklon nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Staubsammelbehälter und/oder der Deckel mit Griffleisten versehen ist.Cyclone according to one of the preceding claims, characterized in that the dust collecting container and / or the lid is provided with grip strips.
EP95119816A 1995-03-31 1995-12-15 Cyclone Withdrawn EP0734775A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29505380U DE29505380U1 (en) 1995-03-31 1995-03-31 cyclone
DE29505380U 1995-03-31

Publications (1)

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EP0734775A1 true EP0734775A1 (en) 1996-10-02

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EP95119816A Withdrawn EP0734775A1 (en) 1995-03-31 1995-12-15 Cyclone

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EP (1) EP0734775A1 (en)
JP (1) JPH08281149A (en)
BR (1) BR9601460A (en)
CA (1) CA2173024A1 (en)
DE (1) DE29505380U1 (en)
IN (1) IN184034B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454515A (en) * 2010-10-18 2012-05-16 郝进才 Double-chamber type air filter
CN102900573A (en) * 2012-09-26 2013-01-30 熊良 Air purifying device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1248076A (en) * 1959-10-29 1960-12-09 Lautrette Et Cie Improvements to devices for removing dust from gases by centrifugation
FR1502227A (en) * 1965-12-17 1967-11-18 Combustion Eng Centrifugal separators for particles suspended in a fluid
US3552102A (en) * 1967-12-20 1971-01-05 Komatsu Mfg Co Ltd Directional-change air cleaning device
DE1576517A1 (en) * 1966-12-12 1972-10-26 Csepeli Autogyar Dry dust separator with cyclone system for combustion engines, compressors and other air suction machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1248076A (en) * 1959-10-29 1960-12-09 Lautrette Et Cie Improvements to devices for removing dust from gases by centrifugation
FR1502227A (en) * 1965-12-17 1967-11-18 Combustion Eng Centrifugal separators for particles suspended in a fluid
DE1576517A1 (en) * 1966-12-12 1972-10-26 Csepeli Autogyar Dry dust separator with cyclone system for combustion engines, compressors and other air suction machines
US3552102A (en) * 1967-12-20 1971-01-05 Komatsu Mfg Co Ltd Directional-change air cleaning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454515A (en) * 2010-10-18 2012-05-16 郝进才 Double-chamber type air filter
CN102900573A (en) * 2012-09-26 2013-01-30 熊良 Air purifying device

Also Published As

Publication number Publication date
CA2173024A1 (en) 1996-10-01
BR9601460A (en) 1999-10-13
JPH08281149A (en) 1996-10-29
DE29505380U1 (en) 1995-05-18
IN184034B (en) 2000-06-03

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