1. An aerodynamic injection system for injecting an airfuel mixture into a turbomachine combustion chamber, the system comprising:
a tubular structure of axis XX\u2032 that opens out at a downstream end for delivering the airfuel mixture;
at least one air feed channel that is connected to a compressor stage of the turbomachine and that opens out into the tubular structure in such a manner as to introduce air at a pressure PA into the tubular structure;
an annular fuel passage that is formed in the tubular structure around its axis XX\u2032, that is connected to at least one fuel feed channel in which fuel flows at a pressure PC, and that opens out at a downstream end into the tubular structure, forming an enlargement therein;
means for injecting gas into the at least one fuel feed channel, the gas being at a pressure PG that is greater than the pressure PA and greater than or equal to PC so as to create effervescence in the fuel on being introduced into the tubular structure;
at least one gas injection channel that opens out into the fuel feed channel(s) and that is connected to a gas feed duct; and
an annular gas distribution cavity that is formed in the tubular structure around the fuel passage, that is connected to the gas feed duct, and that opens out into the gas injection channel.
2. An aerodynamic injection system for injecting an airfuel mixture into a turbomachine combustion chamber, the system comprising:
a tubular structure of axis XX\u2032 that opens out at a downstream end for delivering the airfuel mixture;
at least one air feed channel that is connected to a compressor stage of the turbomachine and that opens out into the tubular structure in such a manner as to introduce air at a pressure PA into the tubular structure;
an annular fuel passage that is formed in the tubular structure around its axis XX\u2032, that is connected to at least one fuel feed channel in which fuel flows at a pressure PC, and that opens out at a downstream end into the tubular structure, forming an enlargement therein;
means for injecting gas into the at least one fuel feed channel, the gas being at a pressure PG that is greater than the pressure PA and greater than or equal to PC so as to create effervescence in the fuel on being introduced into the tubular structure,
wherein the air feed channel is disposed around the tubular structure and opens out axially into the fuel passage at an upstream end thereof.
3. A system according to claim 2, including at least one gas injection channel that opens out into the fuel feed channel(s) and that is connected to a gas feed duct.
4. A system according to claim 1, wherein the gas injection channel opens out substantially perpendicularly into the fuel feed channel(s).
5. A system according to claim 2, further comprising an annular gas distribution cavity that is formed in the tubular structure around the fuel passage, that is connected to the gas feed duct, and that opens out into the gas injection channel.
6. A system according to claim 1, further including an annular fuel distribution cavity that is formed in the tubular structure, that is connected to a fuel feed duct, and that opens out into the fuel feed channel.
7. A system according to claim 1, wherein the fuel feed channel(s) isare inclined tangentially relative to the annular fuel passage.
8. A system according to claim 1, wherein the air feed channel opens out into the tubular structure at an upstream end thereof with the air being set into rotation.
9. A system according to claim 8, further including an outer air swirler that is disposed around the tubular structure, that is radially offset relative to the fuel passage, and that is designed to inject air into the outlet of the tubular structure in a direction that is substantially axial together with movement in rotation.
10. A system according to claim 8, wherein the outer air swirler is connected to a compressor stage of the turbomachine.
11. A system according to claim 8, further including a bowl forming a diverging portion mounted downstream from the tubular structure.
12. A system according to claim 2, wherein the annular fuel passage presents a narrowing of section in the fuel flow direction in order to accelerate the flow of fuel in the tubular structure.
13. A system according to claim 1, wherein the gas is air.
14. A system according to claim 13, wherein the air constituting the gas is taken after compression from a compressor stage of the turbomachine and prior to being further compressed.
15. A system according to claim 1, further comprising a device for controlling the flow rate of the gas injected into the fuel feed channel.
16. A turbomachine combustion chamber including an aerodynamic injection system for injecting an airfuel mixture and in accordance with claim 1.
17. A turbomachine including a combustion chamber fitted with an aerodynamic injection system for injecting an airfuel mixture and in accordance with claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is as follows:
1. A telecommunications coaxial connector comprising:
a body defining a longitudinal axis, the body including a first open end, an opposite second open end and an axial opening defined through the body between the first open end and the second open end;
a cap positioned about the first open end, the cap electrically connected with the body;
the cap including a side wall, an open end aligned with the axial opening, a continuous ring about the open end of the cap and an integral spring member defined in the side wall, the spring member moveable radially inwardly toward the longitudinal axis;
a center conductor with a first end and second end, the center conductor positioned within the axial opening such that the first end of the center conductor extends beyond the first open end of the body into the cap; and
an insulator electrically isolating the center conductor from the body.
2. The telecommunications coaxial connector of claim 1, wherein the body is made of cast zinc.
3. The telecommunications coaxial connector of claim 1, wherein the cap is made of phosphor bronze.
4. The telecommunications coaxial connector of claim 1, wherein the insulator includes a first insulator portion proximate the first open end of the body and a second insulator portion proximate the second open end of the body, the first and second insulator portions cooperating to hold the center conductor centered within the axial opening and electrically insulate the center conductor from the body.
5. The telecommunications coaxial connector of claim 4, wherein the first and second insulator portions are made from a cast electrically insulative material.
6. The telecommunications coaxial connector of claim 1, wherein the integral spring member is a first integral spring member and further comprising a second integral spring member defined in the side wall of the cap.
7. The telecommunications coaxial connector of claim 1, wherein the integral spring member is a first integral spring member and further comprising a second integral spring member and a third integral spring member defined in the side wall of the cap.
8. The telecommunications coaxial connector of claim 1, wherein the integral spring member is a first integral spring member and further comprising a second integral spring member, a third integral spring member and a fourth integral spring member defined in the side wall of the cap.
9. The telecommunications coaxial connector of claim 1, wherein the second open end of the body and the first open end of the cap are each adapted to receive and electrically connect with a BNC coaxial connector, wherein the second open end of the body includes outwardly radially projecting bayonets and adapted to mate within a male BNC coaxial cable connector and the first open end of the cap adapted to mate within a female BNC coaxial connector.
10. The telecommunications coaxial connector of claim 1, wherein the spring member extends parallel to the longitudinal axis of the body and is attached to the sidewall of the cap proximate the first open end of the cap.
11. The telecommunications coaxial connector of claim 1, wherein the spring member extends parallel to the longitudinal axis of the body and is attached to the sidewall of the cap proximate the first open of the body.
12. The telecommunications coaxial connector of claim 1, wherein the spring member extends along the sidewall of the cap transverse to the longitudinal axis of the body.
13. A telecommunications chassis comprising:
a first bulkhead with pairs of coaxial telecommunications connectors, each coaxial telecommunications connector having a first end and a second end electrically connected to the first end;
opposing side walls, a top wall and a bottom forming an enclosure with a first open end and a second open end, the bulkhead positioned across a portion of the second open end with the first end of the coaxial telecommunications connectors within the enclosure;
the coaxial telecommunications connectors including:
a body defining a longitudinal axis, the body including a first open end, an opposite second open end and an axial opening defined through the body between the first open end and the second open end;
a cap positioned about the first open end, the cap electrically connected with the body;
the cap including a side wall, an open end aligned with the axial opening, a continuous ring about the open end of the cap and an integral spring member defined in the side wall, the spring member moveable radially inwardly toward the longitudinal axis;
a center conductor with a first end and second end, the center conductor positioned within the axial opening such that the first end of the center conductor extends beyond the first open end of the body into the cap; and
an insulator electrically isolating the center conductor from the body.
14. The telecommunications chassis of claim 13, wherein the enclosure is configured to receive a module including a telecommunications circuit, the module having a first end and a second end, the first end including coaxial telecommunications connectors, the coaxial telecommunications connectors of the bulkhead being positioned to fit within the coaxial telecommunications connectors on the first end of the module when the module is positioned within the enclosure.
15. A method of assembling a telecommunications coaxial connector, comprising the steps of:
providing a body having a coaxial end and an open end;
providing a center conductor and an insulator within the body;
mounting a cap to the body at a proximal end of the cap, wherein the cap includes integral springs and a distal end with a closed ring about an opening, the springs positioned between the distal and proximal ends, the springs deflectable toward a longitudinal axis of the body when mated with a coaxial connector.
16. A method of forming a cap for a telecommunications coaxial connector comprising the steps of:
providing a sheet of metal;
forming the sheet of metal into a cylindrical shape having:
a first end defining a first outer diameter; and
a second end defining a second outer diameter bigger than the first outer diameter, the second end having an open axial end;
forming an open axial end in the first end of the cylindrical shape;
forming a plurality of resilient springs in the sidewall of the first end, the springs defining a third outer diameter bigger than the first outer diameter.