 Contractable shock absorber strut |
| Referring more particularly to the drawings, the structure of the preferred embodiment of the ... |
|
| Terminal block mounting for a plug-in surface heating unit |
| The present invention, in accordance with one form thereof, relates to a plug-in surface heating ... |
|
| Tinned copper braids for solder removing |
| I claim: 1. A device for removing a solder alloy from a solid soldered joint comprising a ... |
|
| Lifting loop |
| OF A PREFERRED EMBODIMENT Like prior-art designs of lifting loops, the sling in accordance with ... |
|
| High efficiency fuser roll assembly for xerographic material |
| The present invention relates to apparatus for making multiple copies of printed or other matter by ... |
|
| Backup roll for heated fuser system |
| OF THE PREFERRED EMBODIMENT As shown in FIG. 1, the fuser system includes a fuser roll couple ... |
|
| Roll-fusing apparatus |
| It is an object of the present invention to equalize the characteristic of contact pressure exerted ... |
|
| Portable heat circulation means |
| The present invention provides a portable heat circulation device which is particularly adapted to ... |
|
| Interior trim foam product and method of fabrication thereof |
| OF THE INVENTION The article of the present invention and its method of manufacture will be ... |
|
|
Multiflow gas turbine power plant
| Details |
Inventors: Boudigues, Serge;
Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation (Paris, FR)
Primary Examiner: Croyle; Carlton R.
Assistant Examiner: Garrett; Robert E.
Attorney, Agent or Firm: Daniel; William J.
A dual-flow or multiflow gas turbine power plant comprising a jet pipe, at east two separate flow-ducts each opening into the jet pipe, namely a first flow-duct through which passes, in operation, a first gas flow and which contains a gas generator of the gas turbine type and an expansion-turbine located downstream of the gas generator, and a second flow-duct through which passes, in operation, a second gas flow and a mixer device in which the first gas flow leaving the expansion turbine, and the second gas flow, are arranged to be mixed prior to entering the jet pipe, the plant further comprising a recompressor located downstream of the mixer device, in which the mixture of the two gas flows is arranged to be recompressed before entering the jet pipe. |
|
DETAILED DESCRIPTION In accordance with the invention, a gas turbine power plant of the aforesaid type comprises, furthermore, a recompressor arranged downstream of said mixer device, in which the mixture of said two gas flows is arranged to be recompressed prior to entering the jet pipe.
The expansion turbine can advantageously be designed to subject the first gas flow to a super-expansion down to a pressure equal to that of the second gas flow at the time of entry of the latter to the mixer device.
The second flow entering the mixer deivce may be constituted, for example, by a secondary airflow at the dynamic flight pressure, directly drawn from the surrounding atmosphere, or again by a secondary airflow which has undergone previous mechanical compression, for example in a fan.
In accordance with an embodiment which is applicable to the case where the gas generator is of single-rotating spool kind, the recompressor and the expansion turbine may be mechanically connected to said spool.
In accordance with another embodiment applicable to the case where the gas generator is of the kind having at least two rotating spools, namely a low-pressure spool and a high-pressure spool, the recompressor and the expansion turbine may be mechanically connected with the said low-pressure spool.
In accordance with another embodiment, the recompressor is driven by the expansion turbine and constitutes in association therewith a rotating spool which is independent of the rotating spool or spools of the gas generator.
|
|
Heat Accumulators 
