David S Tate

US Patent:

48849448, Dec 5, 1989

Filed:

Sep 7, 1988

Appl. No.:

7/241417

Inventors:

David L. Tate - Stratford CT

Assignee:

Avco Corporation - Providence RI

International Classification:

F04D 2702

US Classification:

415156

Abstract:

A flow fence for a turbo fan jet engine, as taught by Stein et al. in U. S. Pat. No. 3,841,790, is modified by the provision of serrations about its internal circumference. Thus, when the modified flow fence is inserted into or removed from the flow field, a more gradual transition occurs in the flow thereby improving surge margins.

US Patent:

41648455, Aug 21, 1979

Filed:

May 9, 1977

Appl. No.:

5/795058

Inventors:

John T. Exley - Milford CT
Charles Kuintzle - Monroe CT
David L. Tate - Stratford CT

Assignee:

Avco Corporation - Stratford CT

International Classification:

F01D 106
F01D 904

US Classification:

60 3929

Abstract:

A flow stabilizer is presented which equalizes the flow of fluid through the passageways of the channel diffuser used with a centrifugal type rotary compressor. Slots are formed in the sidewalls of the flow separating vanes in the diffuser. The slots open into cavities within the vanes. The multiplicity of cavities communicate by means of openings through the diffuser wall into a common closed manifold. The fluid interconnection between the multiplicity of passageways in the diffuser and the encircling common manifold increases the operating range of the compressor since pressure surges in one or more passageways are quickly equalized.

US Patent:

43157149, Feb 16, 1982

Filed:

Dec 18, 1978

Appl. No.:

5/970416

Inventors:

John T. Exley - Milford CT
Charles Kuintzle - Monroe CT
David L. Tate - Stratford CT

Assignee:

Avco Corporation - Stratford CT

International Classification:

F04D 2954

US Classification:

415207

Abstract:

A flow stabilizer is presented which equalizes the flow of fluid through the passageways of the channel diffuser used with a centrifugal type rotary compressor. Slots are formed in the sidewalls of the flow separating vanes in the diffuser. The slots open into cavities within the vanes. The multiplicity of cavities communicate by means of openings through the diffuser wall into a common closed manifold. The fluid interconnection between the multiplicity of passageways in the diffuser and the encircling common manifold increases the operating range of the compressor since pressure surges in one or more passageways are quickly equalized.

US Patent:

43680054, Jan 11, 1983

Filed:

Nov 16, 1978

Appl. No.:

5/961317

Inventors:

John T. Exley - Milford CT
Charles Kuintzle - Monroe CT
David L. Tate - Stratford CT

Assignee:

Avco Corporation - Stratford CT

International Classification:

F04D 2944

US Classification:

415207

Abstract:

A flow stabilizer is presented which equalizes the flow of fluid through the passageways of the channel diffuser used with a centrifugal type rotary compressor. Slots are formed in the sidewalls of the flow separating vanes in the diffuser. The slots open into cavities within the vanes. The multiplicity of cavities communicate by means of openings through the diffuser wall into a common closed manifold. The fluid interconnection between the multiplicity of passageways in the diffuser and the encircling common manifold increases the operating range of the compressor since pressure surges in one or more passageways are quickly equalized.