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Spiral Casing For A Hydraulic Turbine And Method For Arranging A Spiral Casing
Abstract: A spiral casing for a hydraulic turbine has been conceived including: an array of spiral segments defining a passage to direct liquid entering the casing to a runner in the turbine the spiral segment extending at least partially around the runner and having an inner perimeter defining an opening to receive the runner the cross sectional areas of the spiral segments gradually decrease from an inlet one of the spiral segments to a last one of the spiral segments wherein each of the spiral segments includes a gap aligned with the opening and the cross sections of the spiral segment do not correspond to a circular cross section; an inlet segment defining a passage to receive liquid to flow into the spiral segments wherein the inlet segment is circular in cross section and a transition segment connecting the inlet segment to one of the spiral segments and defining a passage to direct liquid passing from the inlet segment to the spiral segments wherein the transition segment is non circular in cross section along at least a portion of its length.
Notices, Deadlines & Correspondence
Patent Information
Applicants
ANDRITZ HYDRO LTD.
Inventors
1. MURRY , Nigel
2. MONETTE , Christine
3. DESY , Normand
Specification
SOFT COPY ATTACHED IN PDF
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | Form 5 [29-03-2016(online)].pdf | 2016-03-29 |
| 2 | Form 3 [29-03-2016(online)].pdf | 2016-03-29 |
| 3 | Form 1 [29-03-2016(online)].pdf | 2016-03-29 |
| 4 | Drawing [29-03-2016(online)].pdf | 2016-03-29 |
| 5 | Description(Complete) [29-03-2016(online)].pdf | 2016-03-29 |
| 6 | Form 13 [26-04-2016(online)].pdf | 2016-04-26 |
| 7 | 201647010675.pdf | 2016-06-08 |
| 8 | Other Patent Document [28-06-2016(online)].pdf | 2016-06-28 |
| 9 | Form 26 [28-06-2016(online)].pdf_79.pdf | 2016-06-28 |
| 10 | Form 26 [28-06-2016(online)].pdf | 2016-06-28 |
| 11 | 201647010675-Drawing-260416.pdf | 2016-07-13 |
| 12 | 201647010675-Correspondence-Drawing-260416.pdf | 2016-07-13 |
| 13 | 201647010675-Power Of Attorney-280616.pdf | 2016-07-27 |
| 14 | 201647010675-Form-1-280616.pdf | 2016-07-27 |
| 15 | 201647010675-Correspondence-280616.pdf | 2016-07-27 |
| 16 | Form 3 [28-09-2016(online)].pdf | 2016-09-28 |
| 17 | Form 18 [25-05-2017(online)].pdf | 2017-05-25 |
| 18 | 201647010675-FER.pdf | 2019-10-17 |
| 19 | 201647010675-OTHERS [10-04-2020(online)].pdf | 2020-04-10 |
| 20 | 201647010675-FORM 3 [10-04-2020(online)].pdf | 2020-04-10 |
| 21 | 201647010675-FER_SER_REPLY [10-04-2020(online)].pdf | 2020-04-10 |
| 22 | 201647010675-DRAWING [10-04-2020(online)].pdf | 2020-04-10 |
| 23 | 201647010675-COMPLETE SPECIFICATION [10-04-2020(online)].pdf | 2020-04-10 |
| 24 | 201647010675-CLAIMS [10-04-2020(online)].pdf | 2020-04-10 |
| 25 | 201647010675-ABSTRACT [10-04-2020(online)].pdf | 2020-04-10 |
| 26 | 201647010675-US(14)-HearingNotice-(HearingDate-29-03-2022).pdf | 2022-02-21 |
| 27 | 201647010675-Correspondence to notify the Controller [23-03-2022(online)].pdf | 2022-03-23 |
Search Strategy
| 1 | 2019-06-2117-07-08_21-06-2019.pdf |