IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0902609
(2001-07-12)
|
우선권정보 |
FR-0009100 (2000-07-12) |
발명자
/ 주소 |
- Fuentes, Francois
- Dubettier, Richard
- Zundel, Carina
|
출원인 / 주소 |
- L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour L'Etude et L'Exploitation des Procedes Georges Claude
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
7 |
초록
▼
A plant (1) includes, an air distillation apparatus (4) having at least one outlet (25) for a nitrogen-rich fluid and an outlet (32) for a product to be delivered in the liquid state and a gas turbine unit (3) having a combustion chamber (17) and an electricity-generating turbine (18), the intake of
A plant (1) includes, an air distillation apparatus (4) having at least one outlet (25) for a nitrogen-rich fluid and an outlet (32) for a product to be delivered in the liquid state and a gas turbine unit (3) having a combustion chamber (17) and an electricity-generating turbine (18), the intake of which is connected to an outlet of the combustion chamber. An expander (13) for expanding a nitrogen-rich fluid in order to generate refrigerating power allowing the liquid product to be delivered, the air distillation apparatus being connected in parallel to the expander (13) and to the intake of an electricity-delivering turbine in order to feed them with at least one nitrogen-rich fluid. Control elements (41,42) are provided for controlling the flow rates of the nitrogen-rich fluid streams sent to the expander (13) and to the electricity-generating turbine (18), respectively, and determination elements (40) for determining the electrical power to be generated by the electricity-generating turbine (18).
대표청구항
▼
A plant (1) includes, an air distillation apparatus (4) having at least one outlet (25) for a nitrogen-rich fluid and an outlet (32) for a product to be delivered in the liquid state and a gas turbine unit (3) having a combustion chamber (17) and an electricity-generating turbine (18), the intake of
A plant (1) includes, an air distillation apparatus (4) having at least one outlet (25) for a nitrogen-rich fluid and an outlet (32) for a product to be delivered in the liquid state and a gas turbine unit (3) having a combustion chamber (17) and an electricity-generating turbine (18), the intake of which is connected to an outlet of the combustion chamber. An expander (13) for expanding a nitrogen-rich fluid in order to generate refrigerating power allowing the liquid product to be delivered, the air distillation apparatus being connected in parallel to the expander (13) and to the intake of an electricity-delivering turbine in order to feed them with at least one nitrogen-rich fluid. Control elements (41,42) are provided for controlling the flow rates of the nitrogen-rich fluid streams sent to the expander (13) and to the electricity-generating turbine (18), respectively, and determination elements (40) for determining the electrical power to be generated by the electricity-generating turbine (18). pivot point for said cleaning element. 8. The self-cleaning attachment of claim 1, wherein said cleaning element is a rigid, hard polymer blade. 9. The self-cleaning attachment of claim 8, wherein said blade has a convex cross section. 10. The self-cleaning attachment of claim 8, wherein said blade includes metal inserts along at least one edge. 11. The self-cleaning attachment of claim 1, further including a plurality of key slots radially arranged about said rotary carrier and a plurality of cleaning elements, one cleaning element mounted in each of said plurality of key slots. 12. The self-cleaning attachment of claim 1, wherein said cleaning element extends radially from said rotary carrier to substantially the length of said cutting blade and in a substantially parallel plane to said cutting blade. 13. A lawn mower, comprising: a housing including a blade cavity; a motor carried on said housing and having an output shaft; a rotary cutting blade received in said blade cavity and powered by said output shaft; a rotary carrier received in said blade cavity and powered by said output shaft, said rotary carrier including at least one opening; at least one flexible filament mounted for rotation with said rotary carrier, wherein the filament is supported at one end by the carrier to extend radially and non-vertically, substantially from a midpoint of a radius of a circle described by said rotary cutting blade when rotated; said at least one flexible filament being substantially self-supporting along its length such that the filament does not contact the cutting blade when the carrier is at rest, and having a bead on one end to retain said at least one filament in said at least one opening. 14. The lawn mower of claim 13, wherein said at least one filament is a nylon string. 15. The lawn mower of claim 13, wherein said rotary carrier comprises a hub having a conical portion extending axially downward to said cutting blade, said conical portion including an output shaft opening and a pair of opposed blade mounting openings through which said rotary cutting blade is inserted. 16. The lawn mower of claim 14, wherein said conical portion has a deformation around said output shaft opening that is compressed when said rotary cutting blade is secured onto said shaft. 17. The lawn mower of claim 13, wherein said rotary carrier comprises a hub having an annular flange and said at least one opening is formed in said annular flange. 18. The lawn mower of claim 13, wherein said at least one flexible filament extends radially from said rotary carrier to substantially the length of said cutting blade and in a substantially parallel plane to said cutting blade. 19. A lawn mower, comprising: a housing including a blade cavity; a motor carried on said housing and having an output shaft; a rotary cutting blade received in said blade cavity and powered by said output shaft; a rotary carrier received in said blade cavity and powered by said output shaft, said rotary carrier having a bottom wall, an annular flange and at least two openings formed in said annular flange; and at least one flexible, U-shaped filament held in said at least two openings; wherein said U-shaped filament is supported at one end by the carrier to extend radially and non-vertically, substantially from a midpoint of a radius of a circle described by said rotary cutting blade when rotated, and said filament is substantially self-supporting along its length such that the filament does not contact the cutting blade when the rotary carrier is at rest. 20. The lawn mower of claim 19, wherein said rotary carrier further includes an access hole in said bottom wall adjacent said annular flange to allow access for removably inserting a new flexible U-shaped filament when an old flexible U-shaped filament needs replacement. 21. The lawn mower of claim 19, wherein said at least one flexible, U-shaped filament extends radially from said rotary carrier to substantially
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