Claims
- 1. An integral guide vane and separator-diffuser for a gas turbine engine having a central axis, at least two radially spaced annular rows of fuel injection heads disposed around the central axis and an oxidizer compressor located upstream of the at least two annular rows of fuel injection heads, the compressor having at least one rotor, the separator-diffuser comprising:
- a) wall means defining a generally annular oxidizer flow diffuser passage around the central axis having an oxidizer inlet located downstream of the at least one rotor so as to enable oxidizer to pass from the at least one rotor into the oxidizer flow diffuser passage;
- b) at least one generally annular separator member located in the oxidizer flow diffuser passage downstream of the oxidizer inlet so as to divide the oxidizer flow diffuser passage into at least two separate oxidizer flow paths each having a separate oxidizer outlet to direct oxidizer toward the at least two rows of fuel injection heads, the separator member having an upstream leading edge portion;
- c) a plurality of circumferentially spaced apart, generally axially extending primary guide vane arms connecting the separator member to the wall means, the primary guide vane arms having integral leading edge portions extending upstream beyond the upstream leading edge portion of the at least one separator member so as to form the sole stationary guide vanes adjacent to at least one said rotor so as to guide the oxidizer flow from the compressor, each primary guide vane arm having an axial length measured along the central axis greater than an axial length of the at least one annular separator member;
- d) a first trailing edge defined by the separator member; and,
- e) second trailing edges defined by the primary guide vane arms and located such that the second trailing edges are adjacent to the first trailing edge.
- 2. The integral guide vane separator-diffuser of claim 1 further comprising a plurality of circumferentially spaced apart, generally axially extending secondary arms connecting the separator member to the wall means, at least one secondary arm being located between adjacent primary guide vane arms wherein each secondary arm has a leading edge portion substantially aligned with the leading edge portion of the separator member.
- 3. The integral guide vane separator-diffuser of claim 2 further comprising:
- third trailing edges defined by the secondary arms and substantially aligned with the first trailing edge.
- 4. The integral guide vane separator-diffuser of claim 2 comprising a plurality of secondary arms disposed between each pair of adjacent primary guide vane arms.
- 5. The integral guide vane separator-diffuser of claim 1 further comprising an oxidizer tap defined by the wall means to direct a portion of the oxidizer from the oxidizer flow path externally of the integral guide vane separator-diffuser.
- 6. The integral guide vane separator-diffuser of claim 1 wherein the plurality of primary guide vane arms are integral with at least one said separator member.
- 7. The integral guide vane separator-diffuser of claim 1 wherein the plurality of primary guide vane arms are each fastened to the at least one separator member by welding.
- 8. An integral guide vane and separator-diffuser for a gas turbine engine having a central axis, at least two radially spaced annular rows of fuel injection heads disposed around the central axis and an oxidizer compressor located upstream of the at least two annular rows of fuel injection heads, the compressor having at least one rotor, the separator-diffuser comprising:
- a) wall means defining a generally annular oxidizer flow diffuser passage around the central axis having an oxidizer inlet located downstream of the at least one rotor so as to enable oxidizer to pass from the at least one rotor into the oxidizer flow diffuser passage;
- b) a plurality of generally annular separator members located in the oxidizer flow diffuser passage downstream of the oxidizer inlet, each separator member having an upstream leading edge portion wherein N number of separator members divide the oxidizer flow diffuser passage into N+1 oxidizer flow paths having N+1 oxidizer outlets to direct oxidizer toward the at least two rows of fuel injection heads;
- c) a plurality of circumferentially spaced apart, generally axially extending primary guide vane arms connecting the separator members to the wall means, the primary guide vane arms having integral leading edge portions extending upstream beyond the upstream leading edge portion of the separator member so as to form the sole stationary guide vanes adjacent to the at least one rotor so as to guide the oxidizer flow from the compressor, each primary guide vane arm having an axial length measured along the central axis greater than an axial length of the plurality of annular separator members;
- d) a first trailing edge defined by the separator member; and,
- e) second trailing edges defined by the primary guide vane arms and located such that the second trailing edges are adjacent to the first trailing edge.
- 9. The integral guide vane separator-diffuser of claim 8 further comprising:
- a) a trailing edge defined by each of the primary guide vane arms; and,
- b) a trailing edge defined by each of the separator members located downstream from the trailing edge defined by each of the primary guide vane arms.
- 10. The integral guide vane separator-diffuser of claim 8 wherein the separator members extend obliquely to each other in an axial direction.
Priority Claims (1)
Number |
Date |
Country |
Kind |
93 06956 |
Jun 1993 |
FRX |
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Parent Case Info
This application is a Continuation of application Ser. No. 08/255,922, filed Jun. 7, 1994 now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0485175 |
May 1992 |
EPX |
1925172 |
Nov 1970 |
DEX |
0246233 |
Jun 1987 |
DEX |
1211534 |
Nov 1970 |
GBX |
2004329 |
Mar 1979 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
255922 |
Jun 1994 |
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