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Centrifugal Fluid Machine
Abstract: In order to make it possible to suppress the separation and slowdown of a flow in the vicinity of the front edge of a blade suction surface shroud of an impeller when the flow rate is reduced while reducing secondary flow loss within the impeller to thereby maintain the operating range of the impeller in a centrifugal fluid machine the shroud side is inclined further backward with respect to a rotation direction than the hub side at the back edge of an impeller blade when the impeller is viewed from a suction direction that is the upstream direction of a rotating shaft. Moreover in adjacent two impeller blades the shroud side of a blade located behind in the rotation direction of the impeller overlaps in the vicinity of the front edge of the blade with a blade located in front in the rotation direction.
Notices, Deadlines & Correspondence
Patent Information
Applicants
Hitachi Ltd.
Inventors
1. HIRADATE Kiyotaka
2. SHINKAWA Yasushi
3. JOKO Satoshi
4. ITO Toshio
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 3641-CHENP-2014 FORM-18 15-05-2014.pdf | 2014-05-15 |
| 2 | RSA14P0031_Form26_PPLRS-14001_GPA_AsFiled.pdf | 2014-05-19 |
| 3 | RSA14P0031_Form05_PPLRS-14001_AsFiled.pdf | 2014-05-19 |
| 4 | RSA14P0031_Form03_PPLRS-14001_AsFiled.pdf | 2014-05-19 |
| 5 | RSA14P0031_Form02S_Spec_PPLRS-14001_AsFiled.pdf | 2014-05-19 |
| 6 | RSA14P0031_Form02D_Drawings_PPLRS-14001_AsFiled.pdf | 2014-05-19 |
| 7 | RSA14P0031_Form00_PPLRS-14001_IB304_AsFiled.pdf | 2014-05-19 |
| 8 | RSA14P0031_Abst_Drawings_PPLRS-14001_AsFiled.jpg | 2014-05-19 |
| 9 | 3641-CHENP-2014 CORRESPONDENCE OTHERS 23-05-2014.pdf | 2014-05-23 |
| 10 | 3641-CHENP-2014 ENGLISH TRANSLATION 23-05-2014.pdf | 2014-05-23 |
| 11 | 3641-CHENP-2014 CORRESPONDANCE OTHERS 23-05-2014.pdf | 2014-05-23 |
| 12 | 3641-CHENP-2014.pdf | 2014-07-18 |
| 13 | 3641-CHENP-2014-FER.pdf | 2019-01-09 |
| 14 | 3641-CHENP-2014-RELEVANT DOCUMENTS [01-07-2019(online)].pdf | 2019-07-01 |
| 15 | 3641-CHENP-2014-PETITION UNDER RULE 137 [01-07-2019(online)].pdf | 2019-07-01 |
| 16 | 3641-CHENP-2014-FORM 3 [01-07-2019(online)].pdf | 2019-07-01 |
| 17 | 3641-CHENP-2014-FER_SER_REPLY [01-07-2019(online)].pdf | 2019-07-01 |
| 18 | 3641-CHENP-2014-DRAWING [01-07-2019(online)].pdf | 2019-07-01 |
| 19 | 3641-CHENP-2014-COMPLETE SPECIFICATION [01-07-2019(online)].pdf | 2019-07-01 |
| 20 | 3641-CHENP-2014-Annexure [01-07-2019(online)].pdf | 2019-07-01 |
| 21 | 3641-CHENP-2014-PA [20-02-2020(online)].pdf | 2020-02-20 |
| 22 | 3641-CHENP-2014-ASSIGNMENT DOCUMENTS [20-02-2020(online)].pdf | 2020-02-20 |
| 23 | 3641-CHENP-2014-8(i)-Substitution-Change Of Applicant - Form 6 [20-02-2020(online)].pdf | 2020-02-20 |
| 24 | 3641-CHENP-2014-Correspondence_25-02-2020.pdf | 2020-02-25 |
| 25 | 3641-CHENP-2014-PatentCertificate10-06-2021.pdf | 2021-06-10 |
| 26 | 3641-CHENP-2014-IntimationOfGrant10-06-2021.pdf | 2021-06-10 |
| 27 | 3641-CHENP-2014-RELEVANT DOCUMENTS [21-08-2023(online)].pdf | 2023-08-21 |
Search Strategy
| 1 | NewMicrosoftOfficeWordDocument_23-01-2018.pdf |