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US 11,713,701 B2Granted
Exhaust gas heating device, having a metal foam heating element
AssigneeFaurecia Systemes D'Echappement
InventorsTing Feng, Yannick Fourcaudot
Life of this patent
Estimating the term…
Abstract
A heating device includes a heating element in the form of a metal foam, and a case defined by a side wall that extends along a longitudinal axis. The metal foam is housed in the case. An electrical thermal insulator is arranged between the metal foam and the case. The heating device includes at least one electrode and the metal foam includes a zone configured to receive the at least one electrode.
Claims5
An exhaust gas heating device for a heat engine exhaust line, comprising:
- a metal foam forming a heating element;
- a case, defined by a side wall extending along a longitudinal axis, in which the metal foam is housed;
- two annular elements for maintaining the metal foam, arranged on either side of the metal foam in a direction of the longitudinal axis, and each secured to the case;
- an electrical thermal insulator arranged between the metal foam and the case;
- at least one electrode;
- wherein the metal foam includes a zone configured to receive the at least one electrode;
- and
- wherein at least one of the two annular elements includes fastening tabs, extending toward the longitudinal axis, and the case includes, for each fastening tab, a welding orifice, through which a corresponding fastening tab is welded to the case.
5 more elements
A heat engine exhaust line comprising:
- an exhaust gas heating device comprising
- a metal foam forming a heating element,
- a case, defined by a side wall extending along a longitudinal axis, in which the metal foam is housed,
- two annular elements for maintaining the metal foam, arranged on either side of the metal foam in a direction of the longitudinal axis, and each secured to the case,
- an electrical thermal insulator arranged between the metal foam and the case,
- at least one electrode,
- wherein the metal foam includes a zone configured to receive the at least one electrode, and
- wherein at least one of the two annular elements includes fastening tabs, extending toward the longitudinal axis, and the case includes, for each fastening tab, a welding orifice, through which a corresponding fastening tab is welded to the case.
5 more elements
A vehicle, in particular a motor vehicle, comprising:
- a heat engine exhaust line including an exhaust gas heating device comprising
- a metal foam forming a heating element,
- a case, defined by a side wall extending along a longitudinal axis, in which the metal foam is housed,
- two annular elements for maintaining the metal foam, arranged on either side of the metal foam in a direction of the longitudinal axis, and each secured to the case,
- an electrical thermal insulator arranged between the metal foam and the case,
- at least one electrode,
- wherein the metal foam includes a zone configured to receive the at least one electrode, and
- wherein at least one of the two annular elements includes fastening tabs, extending toward the longitudinal axis, and the case includes, for each fastening tab, a welding orifice, through which a corresponding fastening tab is welded to the case.
5 more elements
Dependencies are inferred from the claim text.