US3982848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side channel ring compressor including a channel break decompression nozzle
Assignee: Siemens AG
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Filing: 1975-02-25
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Granted: 1976-09-28
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Expires: 1995-02-25
Abstract
Abstract A side-channel ring compressor including an impeller having radially outwardly extending blades, compressor medium inlet and outlet openings communicative with the side-channel thereof, and a channel break disposed between the inlet and outlet openings. At least one decompression nozzle is disposed in the channel break between the compressor medium inlet and outlet openings, and has an opening which is communicative with the side channel for exhausting compressed gas from between the impeller blades in the channel break and directing the exhausted gas into the side channel of the compressor.
Inventors
- 👤 Siegfried Schonwald
- 👤 Peter Obert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:44
CPC Classifications
F; F04; F04D; F04D23/00; F04D23/008; F04D29/00; F04D29/08; F04D29/16; F04D29/161
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
In a side-channel ring compressor including an impeller having radially outwardly extending blades, compressor medium inlet and outlet openings communicative with the side channel of said compressor, and a channel break disposed between said inlet and outlet openings, the improvement comprising at least one pocket-like decompression nozzle disposed in said side channel break between said compressor medium inlet and outlet openings and opening directly into said side channel on one of the sides thereof near said compressor medium inlet opening for exhausting compressed compressor medium from between said impeller blades in said channel break and directing said exhausted medium into said side channel adjacent said impeller.
Claim 2
Dependent Claim
106 words
In a side-channel ring compressor including an impeller having radially outwardly extending blades, compressor medium inlet and outlet openings communicative with the side channel of said compressor, and a channel break disposed between said inlet and outlet openings, the improvement comprising at least one pocket-like decompression nozzle disposed in said side channel break between said compressor medium inlet and outlet openings and opening directly into said side channel on one of the sides thereof near said compressor medium inlet opening for exhausting compressed compressor medium from between said impeller blades in said channel break and directing said exhausted medium into said side channel adjacent said impeller.
Claim 3
Dependent Claim
29 words
The side-channel ring compressor recited in claim 1, wherein said nozzle opening opens into said side channel on one side of said impeller adjacent said compressor medium inlet opening.
Claim 4
Dependent Claim
35 words
The side-channel ring compressor recited in claim 1, wherein said nozzle has a curved configuration and is directed towards said impeller for directing said exhausted compressor medium into said impeller blades in said side channel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |