Patent US3635579A successfully refreshed from Google Patents.
US3635579A
Expired / Lapsed
US
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Discharge nozzle arrangement for centrifugal gas compressor
Assignee: Daikin Applied Americas Inc
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Filing: 1970-02-26
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Granted: 1972-01-18
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Expires: 1990-02-26
Abstract
Abstract A centrifugal gas compressor impeller with a surrounding gascollecting scroll is enclosed within an outer casing or housing to provide good appearance and reduced noise transmission. A discharge nozzle is detachably secured to pass through an opening of the housing with its inner end received in the discharge outlet of the gas-collecting scroll.
Inventors
- 👤 Gary R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/624; F04D17/00; F04D17/08; F04D17/10; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F04D29/66; F04D29/661; F04D29/663
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A centrifugal gas compressor comprising, a bearing support member, a bearing assembly on said support member, a rotatable gas impeller journaled in said bearing assembly, a housing member detachably secured to said bearing support member to enclose said bearing assembly and said impeller in the assembled relation, a compressed gas-collecting scroll, means detachably securing said scroll to an inside wall of said housing in a position to surround said impeller in the assembled relation of said housing to said support member, an opening in said housing, and a compressed gas nozzle extending through said opening within said housing and detachably secured to said housing in the assembled relation, said scroll having a compressed gas outlet, and the inner end of said nozzle being received in the gas outlet of said scroll in the assembled relation.
Claim 2
Dependent Claim
135 words
A centrifugal gas compressor comprising, a bearing support member, a bearing assembly on said support member, a rotatable gas impeller journaled in said bearing assembly, a housing member detachably secured to said bearing support member to enclose said bearing assembly and said impeller in the assembled relation, a compressed gas-collecting scroll, means detachably securing said scroll to an inside wall of said housing in a position to surround said impeller in the assembled relation of said housing to said support member, an opening in said housing, and a compressed gas nozzle extending through said opening within said housing and detachably secured to said housing in the assembled relation, said scroll having a compressed gas outlet, and the inner end of said nozzle being received in the gas outlet of said scroll in the assembled relation.
Claim 3
Dependent Claim
67 words
The invention of claim 1 in which the gas-collecting passage within said scroll increases from a minimum diameter cross section to the maximum diameter cross section of said compressed gas outlet, and the passage within said outlet nozzle is tapered to increase in diameter from its inner end to its outer end in the assembled relation with a similar rate increase to that of the scroll passage.
Claim 4
Dependent Claim
15 words
The invention of claim 2 in which the gas-collecting passage of said scroll increases toroidally.
Claim 5
Dependent Claim
66 words
The invention of claim 1 in which said gas nozzle is adapted to be inserted through said opening of the housing with its inner end received within the outlet of said scroll and to be detachably secured in the assembled relation to said housing by at least one bolt passing through a collar on said nozzle into threaded aperture on the outside wall of the housing.
References Cited (Backward Citations)
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |