Steam turbine

Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C416S09600A

Reexamination Certificate

active

07488153

ABSTRACT:
A steam turbine (10) having an inner casing (11), in which a rotor (12) that can rotate about an axis (13) is arranged, a steam passage (14) being formed between the rotor (12) and the inner casing (11), in which steam passage there is a multi-stage arrangement of guide vanes (16) secured to the inner casing (12) and rotor blades (17) secured to the rotor (12), in which arrangement hot steam coming from an inlet (15) undergoes work-performing expansion. In a steam turbine of this type, the thermal loading of the rotor and/or inner casing, in particular when starting up, is reduced by virtue of the fact that at least in the steam passage (14) plate-like protective shields (18, 19, 20), which protect the surface of the rotor (12) or inner casing (11) beneath them from the direct action of the hot steam flowing through the steam passage (14), are arranged parallel and close to the surface of the rotor (12) and/or parallel and close to the inner surface of the inner casing (11).

REFERENCES:
patent: 2552239 (1951-05-01), Warren
patent: 4405284 (1983-09-01), Albrecht et al.
patent: 4551063 (1985-11-01), Raschke et al.
patent: 5149247 (1992-09-01), Gros et al.
patent: 5503405 (1996-04-01), Jewett et al.
patent: 5524340 (1996-06-01), Galbraith et al.
patent: 5558496 (1996-09-01), Woodmansee et al.
patent: 6010302 (2000-01-01), Oeynhausen
patent: 6045134 (2000-04-01), Turnquist et al.
patent: 6341937 (2002-01-01), Magoshi et al.
patent: 6416276 (2002-07-01), Marmilic et al.
patent: 6783321 (2004-08-01), Lathrop et al.
patent: 308991 (1955-08-01), None
patent: 340669 (1959-08-01), None
patent: 1 576 975 (1970-11-01), None
patent: 1 076 184 (2001-02-01), None
patent: 897716 (1945-03-01), None
Takamasa, M., “Steam Turbine,” Patent Abstracts of Japan 1983; 007(257):M-256; Publication No. 58140403.
Tadashi, T., “Steam Turbine Rotor Cooling Equipment,” Patent Abstracts of Japan 1985; 009(162):M-394; Publication No. 60035103.
Copy of Search Report from EP 02014534.8 (Dec. 9, 2002).
Copy of International Search Report from PCT/CH03/00426 (Sep. 12, 2003).
Copy of International Preliminary Examination Report from PCT/CH03/00426 (Feb. 11, 2004).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Steam turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Steam turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steam turbine will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4096274

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.