WO2003019051A1 - Joint plat metallique comportant au moins une piste conductrice et son utilisation - Google Patents

Joint plat metallique comportant au moins une piste conductrice et son utilisation Download PDF

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Publication number
WO2003019051A1
WO2003019051A1 PCT/EP2002/009384 EP0209384W WO03019051A1 WO 2003019051 A1 WO2003019051 A1 WO 2003019051A1 EP 0209384 W EP0209384 W EP 0209384W WO 03019051 A1 WO03019051 A1 WO 03019051A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat gasket
metallic flat
gasket according
bead
conductor track
Prior art date
Application number
PCT/EP2002/009384
Other languages
German (de)
English (en)
Inventor
Matthias Laske
Günther Unseld
Albrecht Sailer
Original Assignee
Reinz-Dichtungs-Gmbh & Co. Kg
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 Reinz-Dichtungs-Gmbh & Co. Kg filed Critical Reinz-Dichtungs-Gmbh & Co. Kg
Publication of WO2003019051A1 publication Critical patent/WO2003019051A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J15/0825—Flat gaskets laminated

Definitions

  • the invention relates to a metal seal with at least one through opening and at least one
  • this metallic flat gasket has at least one conductor track, which functions as contact between a sensor element and a measurement value acquisition unit.
  • This flat gasket is used in the manufacture of cylinder head gaskets, in which sensory measurements of certain parameters are to be carried out directly at the combustion chamber opening.
  • the contact between the sensor and the measured value acquisition unit is a critical point, since as a rule the conductor track that is required for contact between the two units often has to pass through one or more bead areas.
  • the integration of the conductor track into the metallic sealing system has so far been carried out according to the prior art by means of provisional, not long-term stable measures such as by filling with sealing compounds or by gluing the free spaces. Since the conductor track crosses the corrugation, it lies at least at one point in the main force connection. The measures for sealing known from the prior art are therefore inadequate since the conductor track in the bead area represents a local increase, as a result of which the conductor track is exposed to enormous static and cyclically acting forces.
  • the invention relates to a metallic flat gasket with at least one through opening and at least one bead and / or half bead, which is crossed by at least one conductor track.
  • the conductor track is used to make contact between at least one sensor element and a measured value acquisition unit.
  • the bead and / or half bead is now constructed in the area of the crossing conductor track so that it has a lower spring rate than in the rest of the area. This is realized in that the bead and / or half bead has softer properties in the area of the conductor track.
  • the softer properties can be realized in that the bead has a lower height in the area of the crossing conductor track than in the rest of the area. It is also possible that the bead has a larger leg length in the area of the conductor track compared to the other areas. Another possibility is to use a thinner steel in the area of the bead, this thinning e.g. is generated by etching processes.
  • the flat seal preferably has a largely uniform surface pressure over the entire area due to the force-displacement characteristic.
  • Another alternative measure to standardize the surface pressure is the sealing of the crossing conductor track in the area of the bead by an additional coating. These coating measures are carried out for remaining geometrically caused leaks, so that a fine seal can also be made at the transitions.
  • FPM coatings ie fluoropolymer coatings, are preferably used.
  • the conductor track must be extremely flat in order to keep the faults in the sealing function as low as possible, but on the other hand it must also be extremely pressure-resistant so that it is not destroyed by the enormous beading forces.
  • the flat conductors used are preferably conductors with a total thickness between 70 and 200 ⁇ m, particularly preferably between 135 and 200 ⁇ m.
  • pressure stability is understood to mean that the deformation generated by the pressure is reversible and not irreversible.
  • the conductor tracks used according to the invention have a pressure stability of up to 50 N / mm 2 at 120 °, which at the same time proves the temperature stability. Therefore, foil conductors are preferred for the crossing conductor tracks.
  • FPC flexible printed circuit
  • FFC flexible flat cable
  • the metallic flat gasket described here does not necessarily have to be limited to a single-layer gasket, but can also be used in multi-layer gasket systems.
  • the metallic flat gaskets according to the invention are widely used for temperature measurement at combustion chamber openings. However, these metallic sealing systems can also be used to determine other parameters at combustion chamber openings, such as force, displacement, strain, acceleration and / or pressure measurements.
  • Another common field of application relates to the manufacture of metallic sealing systems which are provided with gas detectors near the combustion chamber opening, for example for KW, CO, 0 2 or C0 2 .
  • FIG 1 shows an overview of the different sections through the metallic flat gasket according to the invention.
  • FIG. 4 shows a section perpendicular to the direction of propagation of the conductor track in the area of the bead.
  • 5 shows a force-displacement characteristic diagram for the metallic flat gasket according to the invention.
  • Fig. 2 shows the view of a section A-A (see Fig. 1), i.e. a section that runs in the direction of the conductor track and schematically represents the area of the half bead.
  • the cylinder head 1 is shown here as the component to be sealed. This is followed by the metallic flat gasket according to the invention. This consists of a cover plate 2 and a base plate 5. A stop plate 3 and a spacer plate 4 are arranged between these two plates.
  • a sensor layer 6 adjoins the cylinder head, on which the sensor can be applied. The sensor contact is made via the film conductor 7. An additional seal in the area of the bead can be sealed with the aid of an additional coating 10.
  • FIG. 3 shows the view of a cross section B-B (see FIG. 1) in the direction of the conductor track in the region of the sensor head and the combustion chamber opening.
  • the exact installation of the sensor head is shown here.
  • the sensor head 8, which is contacted via a film conductor 7, is applied to a sensor layer 6.
  • a space 9 that protects against compression is arranged around the sensor head.
  • a stopper 3 and a spacer plate 4 are arranged between the cover plate and base plate 2.
  • FIG. 4 shows the view of a section perpendicular to the direction of propagation of the conductor track in the area of the bead, section CC (see FIG. 1).
  • a sensor layer 6 is arranged on the cylinder head 1, the film conductor 7 lying directly on the sensor layer. It is essential that the bead is adapted according to the invention in this area.
  • the film conductor is surrounded on both sides by a sealing coating 10. This is to ensure the fine sealing in this area.
  • FIG. 5 shows comparative recordings of force-displacement characteristic diagrams of different half beads.
  • a conventional half bead is compared with a half bead according to the invention without a conductor track and a half bead with a conductor track according to the invention. It can be seen from the diagram that the characteristic curve for the conventional semi-recess and for the semi-corrugation with conductor track is identical until the required line compression is achieved. This indicates identical sealing properties for both flat seals.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un joint métallique comportant au moins une ouverture de passage et au moins une moulure ou demi-moulure. Ce joint plat métallique comprend par ailleurs au moins une piste conductrice (7) qui sert à établir le contact entre un capteur (8) et une unité de mesure. Ce joint plat peut être utilisé pour produire des joints de culasse, pour lesquels des paramètres donnés doivent être mesurés par capteur directement au niveau de l'ouverture de la chambre de combustion.
PCT/EP2002/009384 2001-08-23 2002-08-22 Joint plat metallique comportant au moins une piste conductrice et son utilisation WO2003019051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001141251 DE10141251C1 (de) 2001-08-23 2001-08-23 Metallische Flachdichtung mit mindestens einer Leiterbahn sowie deren Verwendung
DE10141251.7 2001-08-23

Publications (1)

Publication Number Publication Date
WO2003019051A1 true WO2003019051A1 (fr) 2003-03-06

Family

ID=7696312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/009384 WO2003019051A1 (fr) 2001-08-23 2002-08-22 Joint plat metallique comportant au moins une piste conductrice et son utilisation

Country Status (2)

Country Link
DE (1) DE10141251C1 (fr)
WO (1) WO2003019051A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357974B4 (de) * 2003-12-11 2006-07-06 Reinz-Dichtungs-Gmbh Metallische Flachdichtung mit Leiterbahn und Sensorelement sowie deren Verwendung
EP3222855B1 (fr) 2016-03-22 2018-11-14 FESTO AG & Co. KG Appareil de commande fluidique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472219A2 (fr) * 1990-08-24 1992-02-26 Toyota Jidosha Kabushiki Kaisha Dispositif de détection de la pression d'un moteur à combustion interne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101871A1 (de) * 1991-01-23 1992-07-30 Univ Leipzig Flachdichtung mit stationaerem druckverteilungs- und druckverlaufssensor
DE4243015C1 (de) * 1992-12-18 1994-03-24 Goetze Ag Auspuffflanschdichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472219A2 (fr) * 1990-08-24 1992-02-26 Toyota Jidosha Kabushiki Kaisha Dispositif de détection de la pression d'un moteur à combustion interne

Also Published As

Publication number Publication date
DE10141251C1 (de) 2003-05-15

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