EP3572661B1 - Connector for a conduit of gases in an automobile - Google Patents

Connector for a conduit of gases in an automobile Download PDF

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Publication number
EP3572661B1
EP3572661B1 EP19174338.4A EP19174338A EP3572661B1 EP 3572661 B1 EP3572661 B1 EP 3572661B1 EP 19174338 A EP19174338 A EP 19174338A EP 3572661 B1 EP3572661 B1 EP 3572661B1
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EP
European Patent Office
Prior art keywords
entrance
diagnostic
sealing rings
connector according
connector
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.)
Active
Application number
EP19174338.4A
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German (de)
French (fr)
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EP3572661A1 (en
Inventor
Ulrich Schlachter
Patrick Le Coent
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.)
Eichenauer Heizelemente GmbH and Co KG
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Eichenauer Heizelemente GmbH and Co KG
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Publication of EP3572661A1 publication Critical patent/EP3572661A1/en
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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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/0011—Breather valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/0011—Breather valves
    • F01M2013/0027—Breather valves with a de-icing or defrosting system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M2013/0038—Layout of crankcase breathing systems

Definitions

  • the invention relates to a connector for a line of gases in an automobile with the features specified in the preamble of claim 1, as is known from the DE 10 2011 104 424 A1 is known.
  • Such connectors are required in automobiles, for example, for lines of crankcase ventilation gases, so-called blow-by gases of an internal combustion engine. So that a faulty assembly of such a connector and thus a faulty connection of two sections of a line can be reliably recognized, a diagnostic channel is provided in the connector, which is connected to a branch of the line. Incorrect installation leads to leaks in the line and can therefore be recognized by a reduced pressure in the diagnostic channel.
  • a pressure sensor for measuring the pressure in the diagnostic channel can be arranged in the connector itself or in the branch of the line to which the diagnostic channel of the connector is connected.
  • the object of the present invention is to show a way in which an easy-to-assemble connecting piece can be produced inexpensively.
  • a connecting piece according to the invention has a body in which a flow channel runs from a first line connection to a second line connection and a diagnostic channel runs from a third line connection to a body opening.
  • the first and second line connections are made when assembled in an automobile on two sections of a line for gases, e.g. Blowby gases from an internal combustion engine, connected.
  • the third line connection is connected to a diagnostic line, usually a branch of the line for gases.
  • the body opening runs in the body of the connecting piece transversely, preferably perpendicularly, to the diagnostic channel continuously from an upper side of the body to an underside of the body, for example as a shaft or channel.
  • the body opening is provided so that when the connection piece is mounted on a vehicle, a fastening part, for example a fastening screw or a rivet, is inserted through the body opening and then a press or screw connection is created with a suitable counterpart of the vehicle. If the assembly is correct, the body opening is sealed gas-tight, so that incorrect assembly can be recognized by the pressure in the diagnostic line being too low. For this purpose, several sealing rings are assigned to the body opening, which then, when correctly mounted, surround the fastening part in or on the body opening.
  • a fastening part for example a fastening screw or a rivet
  • sealing rings When correctly installed, the sealing rings, together with the fastening part and, if necessary, further seals or other components, close the body opening in a gas-tight manner.
  • Such sealing rings can, for example, in an annular groove on the top of the body and on the Underside of the body can be provided.
  • the head of a fastening screw can then press onto the sealing ring on the top of the body, while the sealing ring on the underside of the body is pressed against a suitable counterpart of the vehicle when the fastening screw is tightened.
  • An alternative embodiment of the invention provides that a socket sits in the body opening, which is intended to receive the fastening screw. In this way, a very reliable seal can be achieved even when using a fastening screw with a relatively small head and / or a relatively small tightening torque. Sealing rings for sealing the body opening can then be fitted, for example, in an annular gap between the bush and the body and / or on the top and bottom of the bush.
  • the body opening is preferably provided with first sealing rings, which are pressed in the axial direction above and below the diagnostic channel for sealing, and the body opening is additionally provided with second sealing rings, which are pressed in the radial direction in the body opening above and below the diagnostic channel for sealing .
  • the second sealing rings are thus pressed between the bushing and the inner wall of the body opening.
  • the first sealing rings are pressed in the axial direction, for example between a head of the fastening screw and the bushing or between the bushing and a suitable counterpart of the vehicle.
  • the socket preferably has an annular groove on its upper side and on its lower side, in which a sealing ring is seated. These sealing rings are then pressed in the axial direction during assembly.
  • the bushing preferably has openings running in the radial direction in the region between the radial seals. In this way, gases from the diagnostic channel can flow inside the socket.
  • the radial and the axial sealing rings are then arranged above and below the radial openings.
  • a further advantageous development of the invention provides that an electrical heating device is seated in the body.
  • the electrical heating device can be, for example, a ceramic PTC heating element which is arranged between two contact plates.
  • a corresponding heating device is from the DE 10 2011 056 144 A1 known. They can be used to heat or thaw the medium in the connector and thus also in the diagnostic channel.
  • Fig. 1 shows a connector 10 for a line of gases in an automobile and an associated fastening part in the form of a fastening screw 1.
  • the connector 10 can be used for example for a line of blowby gases of an internal combustion engine.
  • the connecting piece 10 has a body 11 in which a flow channel runs from a first line connection 12 to a second line connection 13.
  • the first and the second line connection 12, 13 are provided on two Sections of a line of gases to be connected to connect them together.
  • the body 11 additionally has a third line connection 14, from which an in Fig. 2 Diagnostic channel 15 shown extends to a continuous body opening 5 which extends perpendicular to the diagnostic channel 15 and in which the fastening screw 1 is inserted.
  • the third line connection 14 is intended to be connected to a diagnostic line, which can branch off from the line, for example the blowby line, in a vehicle.
  • the body opening is sealed gas-tight by the fastening screw 1, so that incorrect installation can be recognized by a strikingly low pressure in the diagnostic line.
  • a corresponding pressure sensor can be provided in the connector or outside of it on the diagnostic line.
  • the fastening screw 1 cooperates with seals 3, 4, which in the Figures 3 and 4 are shown.
  • the seals 3, 4 are attached to a bushing 2 which sits in the body opening 5 and surrounds the fastening screw 1 in the assembled state.
  • Fig. 5 is the fastening screw 1 together with the socket 2 surrounding it and an end portion of the diagnostic channel 15 in a sectional view of a detail of FIG Fig. 1 shown.
  • the socket 2 carries a sealing ring 3, for example in an annular groove of the socket 2.
  • the head of the fastening screw 1 presses against the sealing ring 3, so that the latter is pressed in the axial direction.
  • the socket 2 also carries such a sealing ring at its lower end, for example in a further annular groove.
  • this sealing ring is also pressed in the axial direction at the lower end of the bushing 2, namely by being pressed against a counterpart (not shown) of the vehicle.
  • FIG. 3 is a section across the socket 2 and longitudinally through the diagnostic channel 15 shown. This clearly shows that the bushing 2 has radial openings 2a between the sealing rings 4.
  • the socket 2 is preferably made of metal, for example steel.
  • the body 11 can be made of plastic, for example, by injection molding. Due to the embodiment variant shown, the pressing pressure is advantageously exerted above all on the metal parts, so that the plastic body 11 is hardly loaded mechanically.
  • the line connections 12, 13, 14 can be designed as sockets, each of which carries one or more sealing rings 16.
  • the connecting piece 10 can contain an electrical heating device 6, for example with a ceramic PTC heating element, which is arranged between two contact plates.
  • the connecting piece 10 can have a plug connector 18 in order to connect the heating device to a power source.
  • the body 11 of the connector 10 can be composed of several plastic parts.
  • a main part of the body 11 can form the line connections 12, 13, 14 and a compartment for accommodating the electrical heating device 6.
  • a cover 7, which forms a housing of the connector 18, can then be placed on the main part and close the compartment.
  • the main part can initially form the diagnostic channel 15 as an open channel, which is then closed by attaching a cover.
  • the individual parts of the body 11 can be welded or glued to one another during the production of the connecting piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Description

Die Erfindung geht aus von einem Verbindungstück für eine Leitung von Gasen in einem Automobil mit den im Oberbegriff des Anspruchs 1 angegebenen Merkmalen, wie es aus der DE 10 2011 104 424 A1 bekannt ist.The invention relates to a connector for a line of gases in an automobile with the features specified in the preamble of claim 1, as is known from the DE 10 2011 104 424 A1 is known.

Derartige Verbindungsstücke werden in Automobilen beispielsweise für Leitungen von Kurbelwellengehäuseentlüftungsgasen, sogenannten Blowby-Gasen eines Verbrennungsmotors benötigt. Damit eine fehlerhafte Montage eines solchen Verbindungsstücks und somit eine fehlerhafte Verbindung von zwei Abschnitten einer Leitung zuverlässig erkannt werden kann, ist in dem Verbindungsstück ein Diagnosekanal vorgesehen, der an eine Abzweigung der Leitung angeschlossen wird. Eine fehlerhafte Montage führt zu Leckagen in der Leitung und kann deshalb an einem reduzierten Druck in dem Diagnosekanal erkannt werden. Ein Drucksensor zur Messung des Drucks in dem Diagnosekanal kann in dem Verbindungsstück selbst oder in der Abzweigung der Leitung angeordnet sein, an welche der Diagnosekanal des Verbindungsstücks angeschlossen wird.Such connectors are required in automobiles, for example, for lines of crankcase ventilation gases, so-called blow-by gases of an internal combustion engine. So that a faulty assembly of such a connector and thus a faulty connection of two sections of a line can be reliably recognized, a diagnostic channel is provided in the connector, which is connected to a branch of the line. Incorrect installation leads to leaks in the line and can therefore be recognized by a reduced pressure in the diagnostic channel. A pressure sensor for measuring the pressure in the diagnostic channel can be arranged in the connector itself or in the branch of the line to which the diagnostic channel of the connector is connected.

Aufgabe der vorliegenden Erfindung ist es, einen Weg aufzuzeigen, wie ein einfach zu montierendes Verbindungsstück kostengünstig hergestellt werden kann.The object of the present invention is to show a way in which an easy-to-assemble connecting piece can be produced inexpensively.

Diese Aufgabe wird durch ein Verbindungsstück mit den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.This object is achieved by a connector with the features specified in claim 1. Advantageous developments of the invention are the subject of dependent claims.

Ein erfindungsgemäßes Verbindungsstück hat einen Körper in dem ein Strömungskanal von einem ersten Leitungsanschluss zu einem zweiten Leitungsanschluss und ein Diagnosekanal von einem dritten Leitungsanschluss zu einer Körperöffnung verläuft. Der erste und der zweite Leitungsanschluss werden bei der Montage in einem Automobil an zwei mit einander zu verbindende Abschnitte einer Leitung für Gase, z.B. Blowby-Gase eines Verbrennungsmotors, angeschlossen. Der dritte Leitungsanschluss wird dabei an eine Diagnoseleitung, in der Regel eine Abzweigung der Leitung für Gase angeschlossen. Die Körperöffnung verläuft in dem Körper des Verbindungsstücks quer, vorzugsweise senkrecht, zu dem Diagnosekanal durchgehend von einer Körperoberseite zu einer Körperunterseite, beispielsweise als Schacht oder Kanal. Die Körperöffnung ist dazu vorgesehen, dass bei der Montage des Verbindungsstücks an einem Fahrzeug ein Befestigungsteil, beispielsweise eine Befestigungsschraube oder ein Niet, durch die Körperöffnung gesteckt und dann mit einem passenden Gegenstück des Fahrzeugs eine Press- bzw. Schraubverbindung geschaffen wird. Bei korrekter Montage wird dabei die Körperöffnung gasdicht verschlossen, so dass eine fehlerhafte Montage an einem zu geringen Druck in der Diagnoseleitung erkannt werden kann. Zu diesem Zweck sind der Körperöffnung mehrere Dichtringe zu geordnet, die dann bei korrekter Montage das Befestigungsteil in oder an der Körperöffnung umgeben.A connecting piece according to the invention has a body in which a flow channel runs from a first line connection to a second line connection and a diagnostic channel runs from a third line connection to a body opening. The first and second line connections are made when assembled in an automobile on two sections of a line for gases, e.g. Blowby gases from an internal combustion engine, connected. The third line connection is connected to a diagnostic line, usually a branch of the line for gases. The body opening runs in the body of the connecting piece transversely, preferably perpendicularly, to the diagnostic channel continuously from an upper side of the body to an underside of the body, for example as a shaft or channel. The body opening is provided so that when the connection piece is mounted on a vehicle, a fastening part, for example a fastening screw or a rivet, is inserted through the body opening and then a press or screw connection is created with a suitable counterpart of the vehicle. If the assembly is correct, the body opening is sealed gas-tight, so that incorrect assembly can be recognized by the pressure in the diagnostic line being too low. For this purpose, several sealing rings are assigned to the body opening, which then, when correctly mounted, surround the fastening part in or on the body opening.

Bei korrekter Montage verschließen die Dichtringe zusammen mit dem Befestigungsteil und gegebenenfalls weiteren Dichtungen oder sonstigen Komponenten die Körperöffnung gasdicht. Derartige Dichtringe können beispielsweise in einer Ringnut an der Körperoberseite und an der Körperunterseite vorgesehen sein. Bei der Montage kann dann beispielsweise der Kopf einer Befestigungsschraube auf den Dichtring an der Körperoberseite drücken, während der Dichtring an der Körperunterseite beim Anziehen der Befestigungsschraube gegen ein passendes Gegenstück des Fahrzeugs gedrückt wird.When correctly installed, the sealing rings, together with the fastening part and, if necessary, further seals or other components, close the body opening in a gas-tight manner. Such sealing rings can, for example, in an annular groove on the top of the body and on the Underside of the body can be provided. During assembly, for example, the head of a fastening screw can then press onto the sealing ring on the top of the body, while the sealing ring on the underside of the body is pressed against a suitable counterpart of the vehicle when the fastening screw is tightened.

Eine alternative Ausgestaltung der Erfindung sieht vor, dass in der Körperöffnung eine Buchse sitzt, die dafür vorgesehen ist, die Befestigungsschraube aufzunehmen. Auf diese Weise lässt sich, auch bei Einsatz einer Befestigungsschraube mit einem relativ kleinen Kopf und/oder einem relativ kleinen Anzugmoment eine sehr zuverlässige Abdichtung erreichen. Dichtringe zum Abdichten der Körperöffnung können dann beispielsweise in einem Ringspalt zwischen der Buchse und dem Körper und/oder auf der Buchsenober- und - unterseite angebracht sein.An alternative embodiment of the invention provides that a socket sits in the body opening, which is intended to receive the fastening screw. In this way, a very reliable seal can be achieved even when using a fastening screw with a relatively small head and / or a relatively small tightening torque. Sealing rings for sealing the body opening can then be fitted, for example, in an annular gap between the bush and the body and / or on the top and bottom of the bush.

Bevorzugt ist die Körperöffnung mit ersten Dichtringen versehen, die oberhalb und unterhalb des Diagnosekanals zur Abdichtung jeweils in axialer Richtung verpresst werden, und die Körperöffnung zusätzlich mit zweiten Dichtringen versehen, die in der Körperöffnung oberhalb und unterhalb des Diagnosekanals zur Abdichtung jeweils in radialer Richtung verpresst werden. Die zweiten Dichtringe werden somit zwischen der Buchse und der Innenwand der Körperöffnung verpresst. Die ersten Dichtringe werden dagegen in axialer Richtung verpresst, beispielsweise zwischen einem Kopf der Befestigungsschraube und der Buchse bzw. zwischen der Buchse und einem passenden Gegenstück des Fahrzeugs.The body opening is preferably provided with first sealing rings, which are pressed in the axial direction above and below the diagnostic channel for sealing, and the body opening is additionally provided with second sealing rings, which are pressed in the radial direction in the body opening above and below the diagnostic channel for sealing . The second sealing rings are thus pressed between the bushing and the inner wall of the body opening. In contrast, the first sealing rings are pressed in the axial direction, for example between a head of the fastening screw and the bushing or between the bushing and a suitable counterpart of the vehicle.

Bevorzugt weist die Buchse an ihrer Oberseite und an ihrer Unterseite jeweils eine Ringnut auf, in der ein Dichtring sitzt. Diese Dichtringe werden dann bei der Montage in axialer Richtung verpresst. Die Buchse weist bevorzugt in radialer Richtung im Bereich zwischen den radialen Abdichtungen verlaufende Öffnungen auf. So können Gase aus dem Diagnosekanal innen in die Buchse einströmen. Die radialen und die axialen Dichtringe sind dann jeweils oberhalb und unterhalb der radialen Öffnungen angeordnet.The socket preferably has an annular groove on its upper side and on its lower side, in which a sealing ring is seated. These sealing rings are then pressed in the axial direction during assembly. The bushing preferably has openings running in the radial direction in the region between the radial seals. In this way, gases from the diagnostic channel can flow inside the socket. The radial and the axial sealing rings are then arranged above and below the radial openings.

Eine weitere vorteilhafte Weiterbildung der Erfindung sieht vor, dass in dem Körper eine elektrische Heizeinrichtung sitzt. Die elektrische Heizeinrichtung kann beispielsweise ein keramisches PTC-Heizelement sein, das zwischen zwei Kontaktblechen angeordnet ist. Eine entsprechende Heizeinrichtung ist aus der DE 10 2011 056 144 A1 bekannt. Durch sie kann das Medium im Verbindungsstück und damit auch im Diagnosekanal erwärmt bzw. aufgetaut werden.A further advantageous development of the invention provides that an electrical heating device is seated in the body. The electrical heating device can be, for example, a ceramic PTC heating element which is arranged between two contact plates. A corresponding heating device is from the DE 10 2011 056 144 A1 known. They can be used to heat or thaw the medium in the connector and thus also in the diagnostic channel.

Weitere Einzelheiten und Vorteile der Erfindung werden an einem Ausführungsbeispiel unter Bezugnahme auf die beigefügten Zeichnungen erläutert. Es zeigen:

Fig. 1
ein Verbindungstück für eine Leitung von Gasen mit einer dazugehörenden Befestigungsschraube;
Fig. 2
eine Ansicht zu Fig. 1 mit abgenommener Abdeckung;
Fig. 3
die Befestigungsschraube mit einer sie umgebenden Buchse und Dichtringen;
Fig. 4
die Buchse mit Dichtringen;
Fig. 5
eine Schnittansicht eines Details zu Fig.1; und
Fig. 6
eine in Längs- und Querrichtung geschnittene Ansicht eines Details zu Fig.1.
Further details and advantages of the invention will be explained using an exemplary embodiment with reference to the accompanying drawings. Show it:
Fig. 1
a connector for a line of gases with an associated fastening screw;
Fig. 2
a view too Fig. 1 with the cover removed;
Fig. 3
the fastening screw with a bushing and sealing rings surrounding it;
Fig. 4
the bushing with sealing rings;
Fig. 5
a sectional view of a detail Fig. 1 ; and
Fig. 6
a longitudinally and transversely cut view of a detail Fig. 1 .

Fig. 1 zeigt ein Verbindungsstück 10 für eine Leitung von Gasen in einem Automobil sowie ein dazugehörendes Befestigungsteil in Form einer Befestigungsschraube 1. Das Verbindungsstück 10 kann beispielsweise für eine Leitung von Blowby-Gasen eines Verbrennungsmotors genutzt werden. Das Verbindungsstück 10 hat einen Körper 11, in dem ein Strömungskanal von einem ersten Leitungsanschluss 12 zu einem zweiten Leitungsanschluss 13 verläuft. Der erste und der zweite Leitungsanschluss 12, 13 sind dazu vorgesehen, an zwei Abschnitte einer Leitung von Gasen angeschlossen zu werden, um diese miteinander zu verbinden. Fig. 1 shows a connector 10 for a line of gases in an automobile and an associated fastening part in the form of a fastening screw 1. The connector 10 can be used for example for a line of blowby gases of an internal combustion engine. The connecting piece 10 has a body 11 in which a flow channel runs from a first line connection 12 to a second line connection 13. The first and the second line connection 12, 13 are provided on two Sections of a line of gases to be connected to connect them together.

Der Körper 11 weist zusätzlich einen dritten Leitungsanschluss 14 auf, von dem aus sich ein in Fig. 2 dargestellter Diagnosekanal 15 zu einer durchgehenden Körperöffnung 5 erstreckt, die senkrecht zu dem Diagnosekanal 15 verläuft und in der die Befestigungsschraube 1 steckt. Der dritte Leitungsanschluss 14 wird bestimmungsgemäß an eine Diagnoseleitung angeschlossen, die in einem Fahrzeug von der Leitung, z.B. der Blowby-Leitung, abzweigen kann. Bei korrekter Montage wird die Körperöffnung von der Befestigungsschraube 1 gasdicht verschlossen, so dass eine fehlerhafte Montage an einem auffällig niedrigen Druck in der Diagnoseleitung erkannt werden kann. Ein entsprechender Drucksensor kann in dem Verbindungsstück vorgesehen sein oder außerhalb desselben an der Diagnoseleitung.The body 11 additionally has a third line connection 14, from which an in Fig. 2 Diagnostic channel 15 shown extends to a continuous body opening 5 which extends perpendicular to the diagnostic channel 15 and in which the fastening screw 1 is inserted. The third line connection 14 is intended to be connected to a diagnostic line, which can branch off from the line, for example the blowby line, in a vehicle. When correctly installed, the body opening is sealed gas-tight by the fastening screw 1, so that incorrect installation can be recognized by a strikingly low pressure in the diagnostic line. A corresponding pressure sensor can be provided in the connector or outside of it on the diagnostic line.

Zur Abdichtung der Körperöffnung wirkt die Befestigungsschraube 1 mit Dichtungen 3, 4 zusammen, die in den Figuren 3 und 4 dargestellt sind. Die Dichtungen 3, 4 sind an einer Buchse 2 angebracht, die in der Körperöffnung 5 sitzt und im montierten Zustand die Befestigungsschraube 1 umgibt. In Fig. 5 ist die Befestigungsschraube 1 zusammen mit der sie umgebenden Buchse 2 und einem Endabschnitt des Diagnosekanals 15 in einer Schnittansicht eines Details von Fig. 1 dargestellt. An ihrem oberen, dem Kopf der Befestigungsschraube 1 zugewandten Ende trägt die Buchse 2 einen Dichtring 3, z.B. in einer Ringnut der Buchse 2. Im montierten Zustand drückt der Kopf der Befestigungsschraube 1 gegen den Dichtring 3, so dass dieser in axialer Richtung verpresst wird. Einen ebensolchen Dichtring trägt die Buchse 2 auch an ihrem unteren Ende, z.B. in einer weiteren Ringnut. Im montierten Zustand wird dieser Dichtring am unteren Ende der Buchse 2 ebenfalls in axialer Richtung verpresst, nämlich indem er gegen ein Gegenstück (nicht gezeigt) des Fahrzeugs gedrückt wird.To seal the body opening, the fastening screw 1 cooperates with seals 3, 4, which in the Figures 3 and 4 are shown. The seals 3, 4 are attached to a bushing 2 which sits in the body opening 5 and surrounds the fastening screw 1 in the assembled state. In Fig. 5 is the fastening screw 1 together with the socket 2 surrounding it and an end portion of the diagnostic channel 15 in a sectional view of a detail of FIG Fig. 1 shown. At its upper end facing the head of the fastening screw 1, the socket 2 carries a sealing ring 3, for example in an annular groove of the socket 2. In the assembled state, the head of the fastening screw 1 presses against the sealing ring 3, so that the latter is pressed in the axial direction. The socket 2 also carries such a sealing ring at its lower end, for example in a further annular groove. In the assembled state, this sealing ring is also pressed in the axial direction at the lower end of the bushing 2, namely by being pressed against a counterpart (not shown) of the vehicle.

Zusätzlich trägt die Buchse 2 Dichtringe 4, die im montierten Zustand in radialer Richtung verpresst werden und oberhalb bzw. unterhalb des Diagnosekanals 15 einen Ringspalt zwischen der Buchse 2 und dem Körper 11 abdichten. In Fig. 6 ist ein Schnitt quer durch die Buchse 2 und längs durch den Diagnosekanal 15 gezeigt. Darin ist deutlich zu sehen, dass die Buchse 2 zwischen den Dichtringen 4 radiale Öffnungen 2a aufweist. Die Buchse 2 ist bevorzugt aus Metall, beispielsweise aus Stahl. Der Körper 11 kann beispielsweise aus Kunststoff gefertigt werden, etwa durch Spritzgießen. Durch die dargestellte Ausführungsvariante wird der Verpressdruck vorteilhaft vor allem auf die Metallteile ausgeübt, sodass das der Kunststoffkörper 11 mechanisch kaum belastet ist.In addition, the socket 2 carries sealing rings 4, which are pressed in the assembled state in the radial direction and seal an annular gap between the socket 2 and the body 11 above or below the diagnostic channel 15. In Fig. 6 FIG. 3 is a section across the socket 2 and longitudinally through the diagnostic channel 15 shown. This clearly shows that the bushing 2 has radial openings 2a between the sealing rings 4. The socket 2 is preferably made of metal, for example steel. The body 11 can be made of plastic, for example, by injection molding. Due to the embodiment variant shown, the pressing pressure is advantageously exerted above all on the metal parts, so that the plastic body 11 is hardly loaded mechanically.

Die Leitungsanschlüsse 12, 13, 14 können als Stutzen ausgebildet sein, die jeweils einen oder mehrere Dichtringe 16 tragen.The line connections 12, 13, 14 can be designed as sockets, each of which carries one or more sealing rings 16.

Das Verbindungsstück 10 kann eine elektrische Heizeinrichtung 6 enthalten, beispielsweise mit einem keramischen PTC-Heizelement, das zwischen zwei Kontaktblechen angeordnet ist. Das Verbindungsstück 10 kann in diesem Fall einen Steckverbinder 18 aufweisen, um die Heizeinrichtung an eine Stromquelle anzuschließen.The connecting piece 10 can contain an electrical heating device 6, for example with a ceramic PTC heating element, which is arranged between two contact plates. In this case, the connecting piece 10 can have a plug connector 18 in order to connect the heating device to a power source.

Der Körper 11 des Verbindungsstücks 10 kann aus mehreren Kunststoffteilen zusammengesetzt sein. Beispielsweise kann ein Hauptteil des Körpers 11 die Leitungsanschlüsse 12, 13, 14 sowie ein Fach zum Aufnehmen der elektrischen Heizeinrichtung 6 ausbilden. Ein Deckel 7, der ein Gehäuse des Steckverbinders 18 bildet, kann dann auf den Hauptteil aufgesetzt und das Fach verschließen. In entsprechender Weise kann der Hauptteil den Diagnosekanal 15 zunächst als einen offenen Kanal ausbilden, der dann durch Anbringen einer Abdeckung verschlossen wird. Die einzelnen Teile des Körpers 11 können bei der Herstellung des Verbindungsstücks miteinander verschweißt oder verklebt werden.The body 11 of the connector 10 can be composed of several plastic parts. For example, a main part of the body 11 can form the line connections 12, 13, 14 and a compartment for accommodating the electrical heating device 6. A cover 7, which forms a housing of the connector 18, can then be placed on the main part and close the compartment. In a corresponding manner, the main part can initially form the diagnostic channel 15 as an open channel, which is then closed by attaching a cover. The individual parts of the body 11 can be welded or glued to one another during the production of the connecting piece.

BezugszeichenlisteReference symbol list

11
BefestigungsschraubeMounting screw
22nd
BuchseRifle
2a2a
radiale Öffnungen der Buchseradial openings of the bush
33rd
DichtringSealing ring
44th
DichtringSealing ring
55
KörperöffnungBody opening
66
HeizeinrichtungHeater
77
Deckelcover
1010th
VerbindungsstückConnector
1111
Körperbody
1212
LeitungsanschlussLine connection
1313
LeitungsanschlussLine connection
1414
LeitungsanschlussLine connection
1515
DiagnosekanalDiagnostic channel
1616
DichtringSealing ring
1818th
SteckverbinderConnectors

Claims (10)

  1. A connector for a conduit of gases in an automobile, comprising a body (11) in which a flow duct for gases runs from a first port (12) to a second port (13), the body (11) comprising a diagnostic duct (15) which proceeds from a third port (14),
    characterised in that
    the diagnostic duct (15) leads to an entrance (5) which runs transversely to the diagnostic duct (15) continuously from an upper body side to a lower body side, and
    the entrance (5) is associated with sealing rings (3, 4) so that the entrance (5) can be sealed gas-tight when the connector (10) is mounted on a vehicle, by inserting a fastening part, preferably a fastening screw (1), through the entrance and the sealing rings (3, 4).
  2. The connector according to Claim 1, characterised in that the entrance (5) is provided with first sealing rings (3) which are each compressed in the axial direction above and below the diagnostic duct (15) for sealing, and the entrance is provided with second sealing rings (4) which are each compressed in the radial direction above and below the diagnostic duct (15) for sealing.
  3. The connector according to any one of the preceding claims, characterised in that the entrance contains a bushing (2) which is provided to receive the fastening part (1).
  4. The connector according to Claim 3, characterised in that the bushing (2) has openings (2a) running radially.
  5. The connector according to any one of the preceding claims, characterised in that the bushing (2) has an annular groove on the upper side and on the lower side, in each of which one of the sealing rings (3) sits.
  6. The connector according to any one of the preceding claims, characterised in that a further sealing ring (4) in each case sits above and below the diagnostic duct (15), between the bushing (2) and an inner face of the entrance (5).
  7. The connector according to any one of the preceding claims, characterised in that an electric heater is arranged in the body (11).
  8. The connector according to any one of the preceding claims, characterised in that the first and ports (12, 13) are each in the form of a connecting piece which bears one or more sealing rings (16).
  9. The connector according to any one of the preceding claims, characterised in that the third port (14) is in the form of a connecting piece which bears one or more sealing rings (16).
  10. The connector according to any one of the preceding claims, characterised by a fastening screw (1) which passes through the entrance.
EP19174338.4A 2018-05-25 2019-05-14 Connector for a conduit of gases in an automobile Active EP3572661B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018112604.2A DE102018112604A1 (en) 2018-05-25 2018-05-25 Connector for a lead of gases in an automobile

Publications (2)

Publication Number Publication Date
EP3572661A1 EP3572661A1 (en) 2019-11-27
EP3572661B1 true EP3572661B1 (en) 2020-06-17

Family

ID=66542107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19174338.4A Active EP3572661B1 (en) 2018-05-25 2019-05-14 Connector for a conduit of gases in an automobile

Country Status (2)

Country Link
EP (1) EP3572661B1 (en)
DE (1) DE102018112604A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011104424A1 (en) * 2011-06-16 2012-12-20 Daimler Ag Motor car device for ventilation of e.g. crankshaft housing of internal combustion engine of motor car, has connection unit with aperture opening pipe section to environment during incorrect installation of another pipe section
DE102011056144B4 (en) * 2011-12-07 2016-06-16 Eichenauer Heizelemente Gmbh & Co. Kg Device for heating blowby gases
US9562499B2 (en) * 2014-08-29 2017-02-07 GM Global Technology Operations LLC Purge valve detachment diagnostic systems and methods
DE102016201589C5 (en) * 2016-02-03 2024-02-22 Bayerische Motoren Werke Aktiengesellschaft Device for venting a crankcase of an internal combustion engine
DE102016005972A1 (en) * 2016-05-13 2017-02-16 Daimler Ag Crankcase breather for an internal combustion engine, in particular a motor vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102018112604A1 (en) 2019-11-28
EP3572661A1 (en) 2019-11-27

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