GLEITRING UND GLEITRINGDICHTUNGSANORDNUNG FÜR STRAHLTRIEBWERKE

A seal ring ( 1 ) of a mechanical face seal device for jet engines that is designed for rotation in common with an engine shaft is formed of a composite material comprising a fibre-reinforced ceramic material. The reinforcing fibres may be carbon or SiC fibres, and the ceramic material may be a SiC...

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Bibliographische Detailangaben
Hauptverfasser:	HASELBACHER, PETER, KELLER, THOMAS
Format:	Patent
Sprache:	ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CYLINDERS ENGINEERING ELEMENTS AND UNITS GAS-TURBINE PLANTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A seal ring ( 1 ) of a mechanical face seal device for jet engines that is designed for rotation in common with an engine shaft is formed of a composite material comprising a fibre-reinforced ceramic material. The reinforcing fibres may be carbon or SiC fibres, and the ceramic material may be a SiC material. Furthermore, composite seal rings of this type can be provided with pumping structures ( 20 ) in the seal face. Brittle fractures of the SiC matrix do not occur so that the seal ring is at least equal to one such consisting of a steel material in regard to the safety function thereof. However, the wear is substantially less and furthermore, there is no need to provide cooling means for the composite seal ring, whereas the known steel seal rings must contain cooling channels through which a cooling agent is caused to flow for cooling purposes.