DE3668661D1 - DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS. - Google Patents

DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS.

Info

Publication number: DE3668661D1
Authority: DE; Germany
Prior art keywords: compressors; leaf tip; reduce leaf; tip loss; loss
Prior art date: 1985-03-11
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.): Expired - Lifetime

Application number

DE8686630032T

Other languages

German (de)

Inventor

Franz Harter

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.)

RTX Corp

Original Assignee

United Technologies Corp

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.)

1985-03-11

Filing date

1986-03-06

Publication date

1990-03-08

1986-03-06 Application filed by United Technologies Corp filed Critical United Technologies Corp

1990-03-08 Application granted granted Critical

1990-03-08 Publication of DE3668661D1 publication Critical patent/DE3668661D1/en

2006-03-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Turbine Rotor Nozzle Sealing (AREA)

DE8686630032T 1985-03-11 1986-03-06 DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS. Expired - Lifetime DE3668661D1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US71027085A	1985-03-11	1985-03-11

Publications (1)

Publication Number	Publication Date
DE3668661D1 true DE3668661D1 (en)	1990-03-08

Family

ID=24853314

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE198686630032T Pending DE194957T1 (en)	1985-03-11	1986-03-06	DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS.
DE8686630032T Expired - Lifetime DE3668661D1 (en)	1985-03-11	1986-03-06	DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DE198686630032T Pending DE194957T1 (en)	1985-03-11	1986-03-06	DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS.

Country Status (3)

Country	Link
EP (1)	EP0194957B1 (en)
JP (1)	JPS61207802A (en)
DE (2)	DE194957T1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6363726A (en) *	1986-09-05	1988-03-22	Nippon Shokubai Kagaku Kogyo Co Ltd	Composition for surface treatment
EP0528138B1 (en) *	1991-08-08	1995-05-17	Asea Brown Boveri Ag	Blade shroud for axial turbine
DE59201833D1 (en) *	1991-10-08	1995-05-11	Asea Brown Boveri	Shroud for turbine with axial flow.
DE19738671B4 (en) *	1997-09-04	2007-03-01	Alstom	sealing arrangement
EP1840332A1 (en) *	2006-03-27	2007-10-03	Siemens Aktiengesellschaft	Blade of a turbomachine and turbomachine
WO2014189564A2 (en) *	2013-03-06	2014-11-27	United Technologies Corporation	Pretrenched rotor for gas turbine engine
CN112360816A (en) *	2020-12-08	2021-02-12	成都成发科能动力工程有限公司	Axial compressor bearing cylinder and axial compressor using same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH221391A (en) *	1939-04-06	1942-05-31	Maschf Augsburg Nuernberg Ag	Gap sealing device on the heads of the blading of turbomachines, especially steam turbines.
GB882015A (en) *	1957-04-18	1961-11-08	English Electric Co Ltd	Improvements in and relating to high speed axial flow compressors
DE1057137B (en) *	1958-03-07	1959-05-14	Maschf Augsburg Nuernberg Ag	Blade gap seal on centrifugal machines with impellers without a cover band or cover disk
FR1348186A (en) *	1963-02-19	1964-01-04		Faired propeller
CH414681A (en) *	1964-11-24	1966-06-15	Bbc Brown Boveri & Cie	Turbo machine
US3575523A (en) *	1968-12-05	1971-04-20	Us Navy	Labyrinth seal for axial flow fluid machines
GB2034435A (en) *	1978-10-24	1980-06-04	Gerry U	Fluid rotary power conversion means
US4645417A (en) *	1984-02-06	1987-02-24	General Electric Company	Compressor casing recess

1986
- 1986-03-04 JP JP61047177A patent/JPS61207802A/en active Pending
- 1986-03-06 DE DE198686630032T patent/DE194957T1/en active Pending
- 1986-03-06 DE DE8686630032T patent/DE3668661D1/en not_active Expired - Lifetime
- 1986-03-06 EP EP86630032A patent/EP0194957B1/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0194957A2 (en)	1986-09-17
EP0194957B1 (en)	1990-01-31
EP0194957A3 (en)	1987-06-03
JPS61207802A (en)	1986-09-16
DE194957T1 (en)	1987-03-19

Publication	Publication Date	Title
TR25164A (en)	1992-10-27	N'-SUBSTITUENT-N, N-DIACIL-HYDRAZINES IN INTECTID
DE3578906D1 (en)	1990-08-30	BENDING DEVICE.
DE3685465D1 (en)	1992-07-02	CONNECTING DEVICE.
DE3668661D1 (en)	1990-03-08	DEVICE TO REDUCE LEAF TIP LOSS IN COMPRESSORS.
KR850008259A (en)	1985-12-13	Telephone device in absence
DE3582079D1 (en)	1991-04-18	SKIN CLIP DEVICE.
FR2605917B1 (en)	1994-09-02	VICE
DE3784223D1 (en)	1993-03-25	PARALLEL CALCULATOR.
ATA314984A (en)	1992-04-15	CONNECTING STRIP, IN PARTICULAR LOOSE STRIP
DE3667419D1 (en)	1990-01-18	DEVICE TO REDUCE ROUGHNESS.
DE3887560D1 (en)	1994-03-17	Portable calculator.
FR2576454B1 (en)	1987-05-15	LEAD ACCUMULATOR
DK210584D0 (en)	1984-04-27	TIP CHECK
KR880007782U (en)	1988-06-28	Memo stand
DE3789861D1 (en)	1994-06-23	PARALLEL CALCULATOR.
KR890015196U (en)	1989-08-12	High pressure regulator circuit using SCR
IT1183786B (en)	1987-10-22	COMPRESSION DEVICE IN GLUING OPERATIONS
BR6601402U (en)	1987-11-17	PORTABLE CLIPBOARD
BR6601043U (en)	1988-02-23	PORTABLE CLIPBOARD
KR870005101U (en)	1987-04-22	Book scissors
DE3862373D1 (en)	1991-05-16	BENDING AND BENDING BENCH.
KR870016322U (en)	1987-11-24	Double card holder
KR870006612U (en)	1987-05-08	Book stand
KR880006176U (en)	1988-05-30	Book stand
ATE48554T1 (en)	1989-12-15	DEVICE TO REDUCE ROUGHNESS.

Legal Events

Date	Code	Title	Description
1991-02-14	8364	No opposition during term of opposition
1993-03-11	8339	Ceased/non-payment of the annual fee