US6554481B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor bearings
Assignee: Sanden Corp
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Filing: 2001-09-19
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Granted: 2003-04-29
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Expires: 2021-09-19
Abstract
Abstract A compressor bearing assembly for use in a compressor comprises an anti-friction rotation bearing and a compressor component. The anti-friction rotation bearing, has a first and second side. The compressor component has a bearing press fitting hole. The bearing press fitting hole has a mouth and a bottom and is formed in the compressor component and is adapted to receive a first side of a rotation bearing. The bearing press fitting hole has a first inner diameter at its mouth and a second inner diameter in the vicinity of its bottom. The first inner diameter is less than the second inner diameter. The structure for the compressor bearing in this invention may strongly and uniformly fixes the rotation bearing. Further, this structure prevents the rotation bearing from slanting within the pressing hole and prevents undesirable adherence between the rotation bearing and the press fitting hole. As a result, the durability of the rotation bearing and the shaft are improved.
Inventors
- 👤 Shigeru Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:46
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F04; F04B; F04B27/00; F04B27/08; F04B27/10; F04B27/1036; F04B27/1054; F04B27/1063; F04C; F04C18/00; F04C18/02; F04C18/0207; F04C18/0246; F04C18/0253; F04C29/00; F04C29/0042; F16C19/00; F16C19/22; F16C19/44; F16C19/46; F16C19/466; F16C2240/00; F16C2240/40; F16C2240/70; F16C2360/00; F16C2360/42
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A compressor bearing assembly for use in a compressor, comprising: an anti-friction rotation bearing having a first and a second side; and a compressor component having a bearing press fitting hole, having a mouth and a bottom, formed therein and adapted to receive a first side of said rotation bearing, wherein said bearing press fitting hole has a first inner diameter at said mouth and a second inner diameter at about said bottom, such that said first inner diameter is less than said second inner diameter.
Claim 2
Dependent Claim
86 words
A compressor bearing assembly for use in a compressor, comprising: an anti-friction rotation bearing having a first and a second side; and a compressor component having a bearing press fitting hole, having a mouth and a bottom, formed therein and adapted to receive a first side of said rotation bearing, wherein said bearing press fitting hole has a first inner diameter at said mouth and a second inner diameter at about said bottom, such that said first inner diameter is less than said second inner diameter.
Claim 3
Dependent Claim
15 words
The compressor bearing of claim 1 , wherein said compressor component is a front housing.
Claim 4
Dependent Claim
26 words
The compressor bearing of claim 1 , wherein a drive shaft passes through said bearing press fitting hole and is rotatably supported by said rotation bearing.
Claim 5
Dependent Claim
31 words
The compressor bearing of claim 1 , wherein said bearing press fitting hole has a sidewall that is continuous and tapered from said first inner diameter to said second inner diameter.
Claim 6
Dependent Claim
45 words
The compressor bearing of claim 1 , wherein said bearing press fitting hole has a sidewall extending from said first inner diameter to said second inner diameter and a step is formed in said sidewall between said first inner diameter and said second inner diameter.
Claim 7
Dependent Claim
16 words
The compressor bearing of claim 1 , wherein said rotation bearing is a shell-type needle bearing.
Claim 8
Dependent Claim
14 words
The compressor bearing of claim 1 , wherein said compressor is a scroll compressor.
Claim 9
Dependent Claim
120 words
A compressor bearing assembly for use in a compressor, comprising: an anti-friction rotation bearing having a first and a second side; and a compressor component having a bearing press fitting hole, having a mouth and a bottom, formed therein and adapted to receive a first side of said rotation bearing, wherein said bearing press fitting hole has a hole sidewall with a first inner diameter at said mouth and a second inner diameter at about said bottom, such that said first inner diameter is less than said second inner diameter, and wherein said sidewall is deformable, such that said first inner diameter becomes substantially equal to said second inner diameter when said rotation bearing is fixedly pressed into said hole.
Claim 10
Dependent Claim
120 words
A compressor bearing assembly for use in a compressor, comprising: an anti-friction rotation bearing having a first and a second side; and a compressor component having a bearing press fitting hole, having a mouth and a bottom, formed therein and adapted to receive a first side of said rotation bearing, wherein said bearing press fitting hole has a hole sidewall with a first inner diameter at said mouth and a second inner diameter at about said bottom, such that said first inner diameter is less than said second inner diameter, and wherein said sidewall is deformable, such that said first inner diameter becomes substantially equal to said second inner diameter when said rotation bearing is fixedly pressed into said hole.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-04-28 | 2006-10-28 | 2007-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-28 | 2010-10-28 | 2011-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-04-28 | 2014-10-28 | 2015-04-29 | $7700.00 | Window Closed / Lapsed |