US4376613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side channel compressor
Assignee: Siemens AG
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Filing: 1978-03-02
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Granted: 1983-03-15
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Expires: 1998-03-02
Abstract
Abstract An improved side channel compressor wherein the compressor has a side channel with inlet and outlet openings and a rib projecting in the axial direction into the channel and wherein the improvement comprises providing that the rib have a height which is from 10 to 25 percent of the depth of the side channel and arranging the rib approximately mid-way between the inlet and outlet openings.
Inventors
- 👤 Klaus Schoenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
F; F04; F04D; F04D23/00; F04D23/008; F04D29/00; F04D29/40; F04D29/403
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
In a side channel compressor of the type having a side channel within an inlet and outlet opening and at least one rib projecting into the side channel in the axial direction of the compressor, the improvement comprising: said rib having a substantially triangular cross section and being arranged in a direction substantially transverse to said side channel approximately mid-way between said inlet and outlet openings and having a height which is approximately 10 to 25% of the depth of said side channel, whereby cavity resonances in the side channel are substantially attenuated.
Claim 2
Dependent Claim
93 words
In a side channel compressor of the type having a side channel within an inlet and outlet opening and at least one rib projecting into the side channel in the axial direction of the compressor, the improvement comprising: said rib having a substantially triangular cross section and being arranged in a direction substantially transverse to said side channel approximately mid-way between said inlet and outlet openings and having a height which is approximately 10 to 25% of the depth of said side channel, whereby cavity resonances in the side channel are substantially attenuated.
Claim 3
Dependent Claim
97 words
In a side channel compressor of the type having a side channel within an inlet and outlet opening and at least one rib projecting into the side channel in the axial direction of the compressor, the improvement comprising: said rib extending in the meridian plane of said side channel compressor and being arranged in a direction substantially transverse to said side channel exactly mid-way between said inlet and outlet openings and having a height which is approximately 10 to 25% of the depth of said side channel, whereby cavity resonances in the side channel are substantially attenuated.
Claim 4
Dependent Claim
97 words
In a side channel compressor of the type having a side channel within an inlet and outlet opening and at least one rib projecting into the side channel in the axial direction of the compressor, the improvement comprising: said rib extending in the meridian plane of said side channel compressor and being arranged in a direction substantially transverse to said side channel exactly mid-way between said inlet and outlet openings and having a height which is approximately 10 to 25% of the depth of said side channel, whereby cavity resonances in the side channel are substantially attenuated.
Claim 5
Dependent Claim
27 words
In a side channel compressor in accordance with claim 1 or 2, the improvement wherein: said rib extends over the full radial circumference of said side channel.
Claim 6
Dependent Claim
25 words
In a side channel compressor in accordance with claim 1, the improvement wherein: said rib is arranged exactly mid-way between said inlet and outlet openings.
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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |