EP3642490A4 - Helical impeller - Google Patents

Helical impeller Download PDF

Info

Publication number: EP3642490A4
Authority: EP; European Patent Office
Prior art keywords: helical impeller; impeller; helical
Prior art date: 2017-06-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP18821001.7A

Other languages

German (de)

French (fr)

Other versions

EP3642490A1 (en

Inventor

Manuvel Jawahar IGNACY

Kalimuthu PERIYADURAI

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Cri Pumps Private Ltd

Original Assignee

Cri Pumps Private Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2017-06-22

Filing date

2018-06-22

Publication date

2021-03-17

2018-06-22 Application filed by Cri Pumps Private Ltd filed Critical Cri Pumps Private Ltd

2020-04-29 Publication of EP3642490A1 publication Critical patent/EP3642490A1/en

2021-03-17 Publication of EP3642490A4 publication Critical patent/EP3642490A4/en

Status Withdrawn legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
- F04D29/225—Channel wheels, e.g. one blade or one flow channel
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
- F04D29/245—Geometry, shape for special effects
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
- F05D2250/71—Shape curved
- F05D2250/712—Shape curved concave

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Geometry (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

EP18821001.7A 2017-06-22 2018-06-22 Helical impeller Withdrawn EP3642490A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IN201741022007		2017-06-22
PCT/IN2018/050411 WO2018235105A1 (en)	2017-06-22	2018-06-22	HELICOIDAL PROPELLER

Publications (2)

Publication Number	Publication Date
EP3642490A1 EP3642490A1 (en)	2020-04-29
EP3642490A4 true EP3642490A4 (en)	2021-03-17

Family

ID=64736912

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18821001.7A Withdrawn EP3642490A4 (en)	2017-06-22	2018-06-22	Helical impeller

Country Status (4)

Country	Link
EP (1)	EP3642490A4 (en)
CN (1)	CN109964043A (en)
WO (1)	WO2018235105A1 (en)
ZA (1)	ZA201902263B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN111706553A (en) *	2020-06-23	2020-09-25	西安航空学院	Tightening nut to prevent low-pressure inlet cavitation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3156190A (en) *	1963-03-14	1964-11-10	Hidrostal	Pump impeller
EP0011506A1 (en) *	1978-11-17	1980-05-28	Spp Group Limited	Single vane rotodynamic impeller
JPS57181997A (en) *	1981-04-30	1982-11-09	Ebara Corp	Single-blade impeller pump
CN203081851U (en) *	2013-01-28	2013-07-24	青岛佳洲泵业有限公司	Novel balance-adjustable spiral centrifugal impeller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH650839A5 (en) *	1979-09-27	1985-08-15	Schneider Hans Ulrich	Centrifugal pump for delivering liquids
CN101779043B (en) *	2007-08-16	2013-03-27	弗里德科股份公司	Pump rotor and pump comprising a pump rotor of the type
US20100284812A1 (en) *	2009-05-08	2010-11-11	Gm Global Technology Operations, Inc.	Centrifugal Fluid Pump

2018
- 2018-06-22 EP EP18821001.7A patent/EP3642490A4/en not_active Withdrawn
- 2018-06-22 CN CN201880004177.5A patent/CN109964043A/en active Pending
- 2018-06-22 WO PCT/IN2018/050411 patent/WO2018235105A1/en not_active Ceased
2019
- 2019-04-10 ZA ZA2019/02263A patent/ZA201902263B/en unknown

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3156190A (en) *	1963-03-14	1964-11-10	Hidrostal	Pump impeller
EP0011506A1 (en) *	1978-11-17	1980-05-28	Spp Group Limited	Single vane rotodynamic impeller
JPS57181997A (en) *	1981-04-30	1982-11-09	Ebara Corp	Single-blade impeller pump
CN203081851U (en) *	2013-01-28	2013-07-24	青岛佳洲泵业有限公司	Novel balance-adjustable spiral centrifugal impeller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018235105A1 *

Also Published As

Publication number	Publication date
ZA201902263B (en)	2020-08-26
WO2018235105A1 (en)	2018-12-27
CN109964043A (en)	2019-07-02
EP3642490A1 (en)	2020-04-29

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AU2016904303A0 (en)	2016-11-03	Spiral Connection

Legal Events

Date	Code	Title	Description
2018-12-31	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2020-03-27	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2020-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2020-04-29	17P	Request for examination filed	Effective date: 20190430
2020-04-29	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2021-03-17	A4	Supplementary search report drawn up and despatched	Effective date: 20210216
2021-03-17	RIC1	Information provided on ipc code assigned before grant	Ipc: F04D 29/24 20060101AFI20210210BHEP Ipc: F04D 7/04 20060101ALI20210210BHEP Ipc: F04D 29/22 20060101ALI20210210BHEP
2022-01-21	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2022-02-23	18D	Application deemed to be withdrawn	Effective date: 20210916