DE10257312A1 - Electric vacuum pump arrangement for one or more vacuum loads in motor vehicle, is mounted in engine compartment of the motor vehicle on dense unit and rigidly fixed to unit - Google Patents

Electric vacuum pump arrangement for one or more vacuum loads in motor vehicle, is mounted in engine compartment of the motor vehicle on dense unit and rigidly fixed to unit Download PDF

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Publication number
DE10257312A1
DE10257312A1 DE2002157312 DE10257312A DE10257312A1 DE 10257312 A1 DE10257312 A1 DE 10257312A1 DE 2002157312 DE2002157312 DE 2002157312 DE 10257312 A DE10257312 A DE 10257312A DE 10257312 A1 DE10257312 A1 DE 10257312A1
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Germany
Prior art keywords
motor vehicle
vacuum pump
unit
engine compartment
vacuum
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Granted
Application number
DE2002157312
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German (de)
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DE10257312B4 (en
Inventor
Thomas Dreesen
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Volkswagen AG
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Volkswagen AG
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Priority to DE10257312.3A priority Critical patent/DE10257312B4/en
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Publication of DE10257312B4 publication Critical patent/DE10257312B4/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02Arrangements of pumps or compressors, or control devices therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0044Pulsation and noise damping means with vibration damping supports

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The electric vacuum pump (2) is mounted in the engine compartment of the motor vehicle on a dense unit and is rigidly fixed to the unit. The dense unit can be a gearbox block (1) and/or an engine block. The electric vacuum pump is mounted a long distance away from the passenger compartment, preferably in the forward third of the engine compartment.

Description

Die Erfindung betrifft die Anordnung einer elektrischen Unterdruckpumpe für Unterdruckverbraucher an Kraftfahrzeugen.The invention relates to the arrangement an electric vacuum pump for vacuum consumers Motor vehicles.

An Kraftfahrzeugen mit Verbrennungsmotoren ist es gängige Praxis, die Kraftfahrzeug-Bremsanlage mit einem unterdruckbetätigten Bremskraftverstärker auszurüsten.On motor vehicles with internal combustion engines it is common Practice, the motor vehicle braking system with a vacuum operated Brake booster equip.

Der Unterdruck wird dabei im allgemeinen aus dem Unterdruck im Saugrohr und mittels sogenannter motorabhängiger Unterdruckpumpen, auch als Vakuumpumpen bezeichnet, erzeugt.The vacuum is generally from the vacuum in the intake manifold and by means of so-called engine-dependent vacuum pumps, also referred to as vacuum pumps.

Aus der DE 31 01 394 A1 ist eine motorabhängige Unterdruckpumpe bekannt, die ihrerseits mechanisch von der oben liegenden Nockenwelle der Brennkraftmaschine mittels eines Stößels betrieben und verfahrensbedingt nahe der Nockenwelle direkt am Zylinderkopf des Motors fest angeordnet ist. Ferner ist es bekannt, statt der herkömmlichen mechanisch betriebenen Unterdruckpumpe eine motorabhängige Saugstrahlpumpe in Anwendung zu bringen, die ihrerseits im Abgassystem des Verbrennungsmotors angeordnet ist ( DE 198 08 548 A1 ). All den vorstehenden Lösungen ist gemein, dass diese für einen begrenzten Unterdruckverbrauch geeignet sind und demgemäß im Zuge des ständig steigenden Bedarfes an Unterdruck für weitere Verbraucher neben dem Bremskraftverstärker, wie z. B. für diverse Schaltventile, Stellglieder, die Leuchtweitenregulierung der Scheinwerfer u. ä. an ihre technisch bedingten Grenzen gelangen.From the DE 31 01 394 A1 a motor-dependent vacuum pump is known, which in turn is operated mechanically by the overhead camshaft of the internal combustion engine by means of a tappet and, due to the method, is arranged directly on the cylinder head of the engine near the camshaft. Furthermore, it is known to use a motor-dependent suction jet pump instead of the conventional mechanically operated vacuum pump, which in turn is arranged in the exhaust system of the internal combustion engine ( DE 198 08 548 A1 ). All of the above solutions have in common that they are suitable for a limited vacuum consumption and accordingly in the course of the constantly increasing need for vacuum for other consumers in addition to the brake booster, such as. B. for various switching valves, actuators, the headlight range adjustment of the headlights u. Ä. reach their technical limits.

Aus diesem Grunde ist es angezeigt, statt dessen oder zusätzlich zur motorabhängigen Unterdruckversorgung bzw. zu den motorabhängigen Unterdruckpumpen eine oder mehrere motorunabhängige, beispielsweise elektrisch betriebene Unterdruckpumpen zu nutzen.For this reason, it is appropriate instead or in addition for engine dependent Vacuum supply or to the motor-dependent vacuum pumps or more engine independent, For example, to use electrically operated vacuum pumps.

In der Praxis werden diese elektrisch betriebenen Unterdruckpumpen an einem tragenden Bauteil der Fahrzeugkarosserie, beispielsweise im Bereich des Motorraums an einem Hilfsrahmen fest angeordnet.In practice, these become electric operated vacuum pumps on a load-bearing component of the vehicle body, for example in the area of the engine compartment on a subframe arranged.

Diese Anbindung direkt an die Kraftfahrzeugkarosserie hat den wesentlichen Nachteil, dass störende Pumpengeräusche nahezu ungehindert in die Fahrgastzelle eindringen können, wodurch im Ergebnis erhebliche Aufwendungen für die akustische Entkoppelung der Unterdruckpumpe von der Kraftfahrzeugkarosserie erforderlich sind.This connection directly to the vehicle body has the main disadvantage that annoying pump noise almost can enter the passenger compartment unhindered, which results in considerable expenses for the acoustic decoupling of the vacuum pump from the vehicle body required are.

Hier setzt die nachfolgend beschriebene Erfindung an.Here is the one described below Invention.

Aufgabe der Erfindung ist es, in Verbesserung des Standes der Technik eine Anordnung einer elektrisch betriebenen Unterdruckpumpe an Kraftfahrzeugen zu schaffen, die weitestgehend das Eindringen von Pumpengeräuschen in die Fahrgastzelle ohne zusätzliche kosten- und materialintensive Aufwendungen vermeidet.The object of the invention is in Improving the prior art an electrical arrangement operated vacuum pump to create motor vehicles that largely penetration of pump noise into the passenger compartment without additional avoids costly and material-intensive expenses.

Erfindungsgemäß wird die Aufgabe in Verbindung mit den Merkmalen im Oberbegriff des Anspruchs 1 dadurch gelöst, dass die elektrische Unterdruckpumpe innerhalb des Motorraums des Kraftfahrzeugs an einem massereichen Aggregat desselben angeordnet und mit diesem fest verbunden ist. Als massereiche Aggregate sind dabei insbesondere der Getriebeblock und/oder Motorblock vorgesehen.According to the invention, the task is related solved with the features in the preamble of claim 1 in that the electric vacuum pump inside the engine compartment of the motor vehicle arranged on a massive unit and with it is firmly connected. The massive aggregates are in particular the Gear block and / or engine block provided.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist die elektrische Unterdruckpumpe in großem Abstand zur Fahrgastzelle, vorzugsweise im vorderen Drittel des Motorraums angeordnet.According to an advantageous embodiment the invention is the electrical vacuum pump at a large distance to the passenger compartment, preferably in the front third of the engine compartment arranged.

Die vorgeschlagene Anordnung hat im Hinblick auf eine herkömmliche Befestigung der Unterdruckpumpe direkt an der Kraftfahrzeugkarosserie den wesentlichen Vorteil, dass durch die große Masse des Getriebes und/oder Motors und deren bereits vorhandene Entkoppelung von der Kraftfahrzeugkarosserie vermittels an sich bekannter Entkoppelungsgummis die Weiterleitung des Körperschalls infolge des Betriebs der Unterdruckpumpe unterbrochen respektive unterdrückt wird. Was die Problematik des Luftschalls anbelangt, wird diesem wirkungsvoll dadurch begegnet, dass die Unterdruckpumpe zum einen beabstandet zur Fahrgastzelle angeordnet ist und zum anderen vorteilhaft die vorhandene Motorkapselung genutzt werden kann.The proposed arrangement has in terms of a conventional one Attachment of the vacuum pump directly to the vehicle body significant advantage that the large mass of the gear and / or Motors and their existing decoupling from the motor vehicle body forwarding by means of known decoupling rubbers of structure-borne noise interrupted due to the operation of the vacuum pump, respectively repressed becomes. As for the problem of airborne noise, this becomes countered effectively by the fact that the vacuum pump on the one hand is arranged at a distance from the passenger compartment and is also advantageous the existing motor encapsulation can be used.

Die Erfindung wird nachstehend anhand des in den Zeichnungen schematisch dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:The invention is illustrated below of the embodiment shown schematically in the drawings explained in more detail. It demonstrate:

1 die Seitenansicht des Getriebes mit Unterdruckpumpe, 1 the side view of the transmission with vacuum pump,

2 die perspektivische Ansicht der am Getriebe befestigten Unterdruckpumpe. 2 the perspective view of the vacuum pump attached to the gearbox.

Die 1 und 2 zeigen im Wesentlichen den Motorraum eines Kraftfahrzeugs mit einem massereichen Aggregat, vorliegend in Form eines Getriebeblocks 1, welcher bekanntermaßen am nicht näher dargestellten Motorblock angeflanscht ist. Erfindungsgemäß ist dem massereichen Aggregat / Getriebeblock 1 eine an sich bekannte elektrische Unterdruckpumpe 2 zugeordnet, die ihrerseits mit einem rahmenförmigen Halter 3 fest jedoch lösbar verbunden und über eine Adapterplatte 4 am Getriebeblock 1 angebunden ist. Sowohl die Verbindung zwischen Halter 3 und Unterdruckpumpe 2 als auch zwischen Adapterplatte 4 und Getriebeblock 1 wird vorzugsweise mittels Schrauben realisiert.The 1 and 2 essentially show the engine compartment of a motor vehicle with a massive unit, in the present case in the form of a transmission block 1 , which is known to be flanged to the engine block, not shown. According to the massive unit / gear block 1 a known electric vacuum pump 2 assigned, which in turn with a frame-shaped holder 3 firmly but releasably connected and via an adapter plate 4 on the gear block 1 is connected. Both the connection between the holder 3 and vacuum pump 2 as well as between the adapter plate 4 and gear block 1 is preferably realized using screws.

Vorliegend sind Halter 3 und Adapterplatte 4 als separate Bauteile gefertigt und miteinander verbunden. Durch die Erfindung mit erfaßt wird jedoch auch ein einstückiges Bauteil, welches sowohl den Halter 3 als auch die Adapterplatte 4 umfaßt.There are holders 3 and adapter plate 4 manufactured as separate components and connected to each other. However, the invention also covers a one-piece component which comprises both the holder 3 as well as the adapter plate 4 includes.

Wie den Zeichnungen weiter zu entnehmen ist, sind die Verbindungspunkte zwischen Halter 3 und Adapterplatte 4 durch Entkoppelungsgummis 5 gebildet, die zwar an sich nicht erforderlich sind, sich jedoch hinsichtlich der Funktionssicherheit und Lebensdauer der Unterdruckpumpe 2 als zweckmäßig erwiesen haben.As can be seen from the drawings, the connection points between the holder 3 and adapter plate 4 by decoupling rubbers 5 formed, which are not required per se, but with regard to the functional reliability and service life of the vacuum pump 2 have proven to be appropriate.

Obwohl vorliegendes Ausführungsbeispiel auf ein massereiches Aggregat in Form eines Getriebeblockes 1 abstellt, ist es sicherlich auch möglich, die Unterdruckpumpe 2 wirkungsgleich direkt am nicht näher dargestellten Motorblock oder auch an beiden anzubinden, welches durch die Erfindung selbstverständlich mit erfaßt ist.Although the present exemplary embodiment is based on a massive unit in the form of a gear block 1 turns off, it is certainly also possible to use the vacuum pump 2 to be connected directly to the engine block (not shown) or to both, which is of course also covered by the invention.

Ferner sieht die Erfindung vor, die elektrische Unterdruckpumpe 2 in großem Abstand zur Fahrgastzelle, vorzugsweise im vorderen Drittel des Motorraums anzuordnen, wodurch, wie bereits oben erwähnt, der Beeinflussung der Fahrgastzelle respektive der Insassen durch Luftschall infolge des Betriebs der Unterdruckpumpe 2 wirkungsvoll begegnet werden kann. In umfangreichen Versuchen hat sich eine Anordnung der Unterdruckpumpe 2 im vorderen Drittel des Motorraums oberhalb des Getriebeblockes 1 besonders bewährt (1).The invention further provides for the electric vacuum pump 2 to be arranged at a large distance from the passenger compartment, preferably in the front third of the engine compartment, which, as already mentioned above, influences the passenger compartment or the occupants by airborne noise as a result of the operation of the vacuum pump 2 can be effectively countered. The vacuum pump has been arranged in extensive tests 2 in the front third of the engine compartment above the transmission block 1 especially proven ( 1 ).

Auf akustische Maßnahmen, wie Schalldämpfer, Einhausungen etc. konnte gänzlich verzichtet werden. Die Unterdruckpumpe 2 war quasi nicht mehr wahrnehmbar.Acoustic measures such as silencers, housings, etc. could be completely dispensed with. The vacuum pump 2 was virtually imperceptible.

Claims (3)

Anordnung einer elektrischen Unterdruckpumpe für einen oder mehrerer Unterdruckverbraucher an Kraftfahrzeugen, dadurch gekennzeichnet, dass die elektrische Unterdruckpumpe (2) innerhalb des Motorraums des Kraftfahrzeugs an einem massereichen Aggregat desselben angeordnet und mit diesem fest verbunden ist.Arrangement of an electrical vacuum pump for one or more vacuum consumers on motor vehicles, characterized in that the electrical vacuum pump ( 2 ) is arranged within the engine compartment of the motor vehicle on a massive unit of the same and is firmly connected to it. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass das massereiche Aggregat ein Getriebeblock (1) und/oder ein Motorblock ist.Arrangement according to claim 1, characterized in that the massive unit is a gear block ( 1 ) and / or an engine block. Anordnung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die elektrische Unterdruckpumpe (2) in großem Abstand zur Fahrgastzelle, vorzugsweise im vorderen Drittel des Motorraums angeordnet ist.Arrangement according to one of claims 1 and 2, characterized in that the electric vacuum pump ( 2 ) is arranged at a large distance from the passenger compartment, preferably in the front third of the engine compartment.
DE10257312.3A 2002-12-07 2002-12-07 Arrangement of an electric vacuum pump Expired - Fee Related DE10257312B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10257312.3A DE10257312B4 (en) 2002-12-07 2002-12-07 Arrangement of an electric vacuum pump

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DE10257312.3A DE10257312B4 (en) 2002-12-07 2002-12-07 Arrangement of an electric vacuum pump

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DE10257312B4 DE10257312B4 (en) 2016-11-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016216907A1 (en) 2016-09-06 2018-03-08 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101394A1 (en) * 1981-01-17 1982-08-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Vacuum pump and its arrangement
DE3219133A1 (en) * 1982-05-21 1983-11-24 Alfred Teves Gmbh, 6000 Frankfurt Electric motor drive for a pump in a motor vehicle
DE19808548A1 (en) * 1998-02-28 1999-09-02 Itt Mfg Enterprises Inc Negative pressure creating device for pneumatic brake amplifier of vehicle
GB2363168B (en) * 2000-06-05 2004-03-31 Ford Global Tech Inc Vacuum pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016216907A1 (en) 2016-09-06 2018-03-08 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine

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