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US 4,668,106 AGranted
Thrust bearing underspring
AssigneeThe Garrett Corporation
InventorAlston L. Gu
Life of this patent
Estimating the term…
Abstract
A foil thrust bearing having an underspring with alternating upper ridges and lower ridges.
Claims40
A fluid thrust bearing comprising:
- a thrust runner;
- a thrust plate to rotatably support the thrust runner;
- and
- a compliant foil bearing operably disposed between said thrust runner and said thrust plate and mounted on said thrust plate, said compliant foil bearing including a thrust disk having a plurality of converging surface compliant foils disposed towards said thrust runner, and a foil stiffener disk having a plurality of upper and lower ridges alternately transversely disposed therearound between the thrust disk and the thrust plate, the upper ridges having a height generally between 0.001 and 0.010 inches greater than the height of the lower ridges.
1 more element
An underspring for a foil thrust bearing comprising:
- a compliant ring disk;
- a plurality of upper ridges disposed on one surface of the disk;
- and
- a plurality of lower ridges disposed on the other surface of the disk generally between adjacent upper ridges,
- the upper ridges having a height generally between 0.001 inches and 0.010 inches greater than the height of the lower ridges and at least one transverse slot dividing the upper ridges into at least two segments.
2 more elements
An underspring for a foil thrust bearing comprising:
- a compliant ring disk;
- a plurality of upper ridges disposed on one surface of the disk;
- and
- a plurality of lower ridges disposed on the other surface of the disk generally between adjacent upper ridges,
- the upper ridges having a height generally between 0.001 inches and 0.010 inches greater than the height of the lower ridges and the lower ridges including outwardly extending tabs.
2 more elements
A fluid thrust bearing comprising:
- a pair of members arranged for relative rotation with respect to one another, one of said pair of members adapted to rotatably support the other;
- and
- a compliant foil bearing operably disposed between said pair of relatively rotatable members and mounted to one of said pair of relatively rotatable members, said compliant foil bearing including a thrust disk having a plurality of compliant foils and an underspring, the underspring comprising a flat disk having a plurality of upper ridges and lower ridges alternately disposed thereon, the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk.
A fluid thrust bearing comprising:
- a pair of members arranged for relative rotation with respect to one another, one of said pair of members adapted to rotatably support the other;
- and
- a compliant foil bearing operably disposed between said pair of relatively rotatable members and mounted to one of said pair of relatively rotatable members, said compliant foil bearing including a thrust disk having a plurality of compliant foils and an underspring, the underspring comprising a generally flat disk having a plurality of upper ridges and lower ridges alternately disposed thereon, the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk and the sides of the upper ridges and lower ridges are generally perpendicular to the generally flat disk.
A fluid thrust bearing comprising:
- a pair of members arranged for relative rotation with respect to one another, one of said pair of members adapted to rotatably support the other;
- and
- a compliant foil bearing operably disposed between said pair of relatively rotatable members and mounted to one of said pair of relatively rotatable members, said compliant foil bearing including a thrust disk having a plurality of compliant foils and an underspring, the underspring comprising a generally flat disk having a plurality of upper ridges and lower ridges alternately disposed thereon, the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk and the upper ridge having at least one transverse slot dividing the upper ridges into at least two segments.
A fluid thrust bearing comprising:
- a pair of members arranged for relative rotation with respect to one another, one of said pair of members adapted to rotatably support the other;
- and
- a compliant foil bearing operably disposed between said pair of relatively rotatable members and mounted to one of said pair of relatively rotatable members, said compliant foil bearing including a thrust disk having a plurality of compliant foils and an underspring, the underspring comprising a generally flat disk having a plurality of upper ridges and lower ridges alternately disposed thereon, the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk and the lower ridges including outwardly extending tabs.
A fluid thrust bearing comprising:
- a thrust runner;
- a thrust plate to rotatably support the thrust runner;
- and
- a compliant foil bearing operably disposed between said thrust runner and said thrust plate and mounted on said thrust plate, said compliant foil bearing including a thrust disk having a plurality of converging surface compliant foils disposed towards said thrust runner, and a foil stiffener flat disks having a plurality of upper and lower ridges alternately transversely disposed therearound between the thrust disk and the thrust plate, the upper ridges having a height greater than the height of the lower ridges.
1 more element
A foil thrust bearing underspring comprising:
- a compliant flat ring disk;
- a plurality of upper ridges disposed on one surface of the flat disk;
- and
- a plurality of lower ridges disposed on the other surface of the flat disk generally between adjacent upper ridges;
- the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk and the sides of the upper ridges and lower ridges are generally perpendicular to the flat disk.
2 more elements
A fluid thrust bearing comprising:
- a thrust runner;
- a thrust plate to rotatably support the thrust runner;
- and
- a compliant foil bearing operably disposed between said thrust runner and said thrust plate and mounted on said thrust plate, said compliant foil bearing including a thrust disk having a plurality of converging surface compliant foils disposed towards said thrust runner and a foil stiffener, the foil stiffener having a plurality of upper and lower ridges alternately transversely disposed theraround between the thrust disk and the thrust plate, the upper ridges having a height from the flat disk greater than the height of the lower ridges from the flat disk and the sides of the upper ridges and lower ridges are generally perpendicular to the flat disk.
1 more element
Dependencies are inferred from the claim text.