US3778983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral multichannel separator
Assignee: Avco Corp
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Filing: 1972-08-30
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Granted: 1973-12-18
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Expires: 1992-08-30
Abstract
Abstract An integral multichannel separator for separating and removing foreign particles from engine inlet air is disclosed. The multichannel separator utilizes a plurality of concentric rings mounted in the air inlet passageway to divide the passageway into multiple flow paths. Each ring has a particle entrapping portion at the trailing edge. Each particle entrapping portion of the rings is connected with scavenge struts which support the rings as well as transport the particles for disposal. Deflector rings cooperate to prevent particle rebound into the main airstream.
Inventors
- 👤 G Rygg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/08; F; F02; F02C; F02C7/00; F02C7/04; F02C7/05; F02C7/052; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
In a gas turbine engine the combination comprising: an air intake passageway; a plurality of concentric separating elements mounted in said passageway and dividing said passageway into plural flow paths, said elements having a particle entrapping portion at the trailing edge thereof; a plurality of concentric deflector rings of like number as said separating elements mounted in said passageway, a deflector ring being mounted in close proximation to a separating element and positioned radially inward therefrom wherein particles rebounding from said separating elements will be prevented from returning to the passageway whereby such particles will be carried into the particle entrapping portion due to particle inertia; and a row of spaced radially extending hollow struts mounted in said passageway, said Row of struts supporting said concentric separating elements and said deflector rings, said struts having openings therealong wherein said hollow interior of each strut is in communication with the particle entrapping portion for receiving particles entrapped thereby.
Claim 2
Dependent Claim
157 words
In a gas turbine engine the combination comprising: an air intake passageway; a plurality of concentric separating elements mounted in said passageway and dividing said passageway into plural flow paths, said elements having a particle entrapping portion at the trailing edge thereof; a plurality of concentric deflector rings of like number as said separating elements mounted in said passageway, a deflector ring being mounted in close proximation to a separating element and positioned radially inward therefrom wherein particles rebounding from said separating elements will be prevented from returning to the passageway whereby such particles will be carried into the particle entrapping portion due to particle inertia; and a row of spaced radially extending hollow struts mounted in said passageway, said Row of struts supporting said concentric separating elements and said deflector rings, said struts having openings therealong wherein said hollow interior of each strut is in communication with the particle entrapping portion for receiving particles entrapped thereby.
Claim 3
Dependent Claim
49 words
The combination according to claim 1 in which the outermost concentric separating element defines the inner wall of a manifold chamber; an outer wall cooperating with said outermost separating element to define the manifold chamber, said manifold chamber being in communication with said hollow struts for receiving particles therefrom.
Claim 4
Dependent Claim
34 words
The combination according to claim 2 in which said particle entrapping portion of the outermost separating element is separated therefrom wherein direct communication is provided between said outermost separating element and said manifold chamber.
Claim 5
Dependent Claim
31 words
The combination as set forth in claim 1 in which said concentric separating elements comprise concentric rings and in which the entrapping portion of each separating ring is a catching lip.
Claim 6
Dependent Claim
53 words
The combination as set forth in claim 4 in which the downstream edge of each deflector ring terminates upstream of the leading edge of the respective catching lip wherein a slight air gap exists therebetween whereby air passing between the respective concentric ring and deflector will be able to return to the passageway.
Claim 7
Dependent Claim
40 words
The combination according to claim 4 in which said catching lip extending between any pair of hollow struts is formed in a sawtooth shape whereby particles entrapped thereby will flow therealong to one or the other of said hollow struts.
Claim 8
Dependent Claim
153 words
A multichannel separator in an inlet of a gas turbine engine comprising: a plurality of concentric rings mounted in the inlet passageway, each of said rings terminating, said rings defining a plurality of passageways within the inlet passageway; a catching lip at the downstream end of each concentric ring and cooperating therewith to catch particles within the passageway; a concentric deflector ring mounted in said inlet passageway in close proximity with each concentric ring, each deflector ring being positioned radially inward from each respectively concentric ring; a plurality of radially extending hollow struts mounted in said inlet passageway, said struts supporting each concentric ring and catching lip and deflector ring, said strut having openings therealong in communication with each of said catching lips wherein said catching lips are in communication with the interior of said hollow struts whereby particles entrapped by each catching lip are transmitted to the interior of said hollow strut.
Claim 9
Dependent Claim
153 words
A multichannel separator in an inlet of a gas turbine engine comprising: a plurality of concentric rings mounted in the inlet passageway, each of said rings terminating, said rings defining a plurality of passageways within the inlet passageway; a catching lip at the downstream end of each concentric ring and cooperating therewith to catch particles within the passageway; a concentric deflector ring mounted in said inlet passageway in close proximity with each concentric ring, each deflector ring being positioned radially inward from each respectively concentric ring; a plurality of radially extending hollow struts mounted in said inlet passageway, said struts supporting each concentric ring and catching lip and deflector ring, said strut having openings therealong in communication with each of said catching lips wherein said catching lips are in communication with the interior of said hollow struts whereby particles entrapped by each catching lip are transmitted to the interior of said hollow strut.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |