Foil bearing, and foil bearing unit and turbo machine each having same
US-2016312655-A1 · Oct 27, 2016 · US
Thrust bearing shaft for fan
US8939738B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939738-B2 |
| Application number | US-201213421893-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2012 |
| Priority date | Mar 16, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
Official abstract text for this publication.
A thrust shaft for a fan has a shaft body with an enlarged disk adjacent one axial end to provide a rotating surface in a pair of thrust bearings. A first cylindrical portion extends from the disk in a first direction, and a second cylindrical portion extending from the disk in a second opposed direction. The second cylindrical portion has a hollow bore, and there are a plurality of holes extending through the second cylindrical portion to communicate an outer periphery with the bore. A ratio of the diameter of the bore to a diameter of the plurality of air holes is between 6.60 and 7.00. A ratio of an overall length of the second cylindrical portion, and a distance from a face of the enlarged disk to a center of the holes is between 14.4 and 15.2. A thrust bearing assembly, a fan, a cabin air supply system, and a method are also disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A thrust shaft for a fan comprising: a shaft body having an enlarged disk adjacent one axial end to provide a rotating surface for a pair of thrust bearings; a first cylindrical portion extending from said disk in a first direction, and a second cylindrical portion extending from said disk in a second opposed direction, said second cylindrical portion having a hollow bore, and there being a plurality of holes extending through said second cylindrical porti…
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Classifications
- F04D29/051Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8939738B2 cover?
- A thrust shaft for a fan has a shaft body with an enlarged disk adjacent one axial end to provide a rotating surface in a pair of thrust bearings. A first cylindrical portion extends from the disk in a first direction, and a second cylindrical portion extending from the disk in a second opposed direction. The second cylindrical portion has a hollow bore, and there are a plurality of holes exten…
- Who is the assignee on this patent?
- Beers Craig M, Binek Lawrence, Lugo Valentina, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F04D29/051. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).