GB1326429A - Production of high-velocity gas jets - Google Patents

Production of high-velocity gas jets

Info

Publication number
GB1326429A
GB1326429A GB4937070A GB4937070A GB1326429A GB 1326429 A GB1326429 A GB 1326429A GB 4937070 A GB4937070 A GB 4937070A GB 4937070 A GB4937070 A GB 4937070A GB 1326429 A GB1326429 A GB 1326429A
Authority
GB
United Kingdom
Prior art keywords
nozzle
gas
arc
electrode
jet
Prior art date
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
Application number
GB4937070A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
Filing date
Publication date
Priority claimed from DE19691954851 external-priority patent/DE1954851C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1326429A publication Critical patent/GB1326429A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3431—Coaxial cylindrical electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3484—Convergent-divergent nozzles

Abstract

1326429 Plasma jets SIEMENS AG 16 Oct 1970 [31 Oct 1969] 49370/70 Heading H5H [Also in Divisions B7 and F1] A high-velocity plasma jet, for use in wind tunnels or in connection with jet propulsion units of rockets, is discharged through a discharge nozzle 26 from an arc chamber 2, and an annular nozzle 28 is provided coaxially with the discharge nozzle 26 to remove a peripheral sheath-like portion of the gas stream from an axial core-like portion before the latter portion enters the discharge nozzle to form the required jet. An arc 14 burns between an axially adjustable cup-shaped electrode 10 and a cylindrical electrode 12. The arc is vortex stabilized and an additional gas supply may be provided via a central bore in electrode 10. The nozzle structure is in two relatively axially adjustable parts 16, 18, with suitable water cooling connections. Nozzle 26 is a Laval nozzle and nozzle 28 is either a Laval nozzle, for increasing the speed of flow of the removed gas discharged therethrough, or of a form which causes no change in the velocity of the removed gas. One or more outlet ducts 30 are provided for the removed gas, and extend tangentially with respect to the cross-section of the cylindrical outer wall 32 of nozzle part 16. The ducts 30 may have an adjustable cross-section, Fig. 2 (not shown). An outer flow duct may be provided around the arc chamber 2 by a wall 50, Fig. 3, (not shown), and gas in this duct cools the gas removed by nozzle 28.
GB4937070A 1969-10-31 1970-10-16 Production of high-velocity gas jets Expired GB1326429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691954851 DE1954851C3 (en) 1969-10-31 Plasma jet generator

Publications (1)

Publication Number Publication Date
GB1326429A true GB1326429A (en) 1973-08-15

Family

ID=5749803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4937070A Expired GB1326429A (en) 1969-10-31 1970-10-16 Production of high-velocity gas jets

Country Status (4)

Country Link
US (1) US3692431A (en)
JP (1) JPS5628229B1 (en)
FR (1) FR2065621B1 (en)
GB (1) GB1326429A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168228A (en) * 1984-11-30 1986-06-11 Plasma Energy Corp Plasma arc bulk air heating apparatus
GB2312709A (en) * 1996-04-30 1997-11-05 David Johnston Burns Flying craft with magnetic field/electric arc vertical thrust producing means
RU2781310C1 (en) * 2022-04-06 2022-10-11 Анатолий Михайлович Криштоп Detonating pulsing water-jet engine (dpwje) and detonating water jet of krishtop (dwjk), and method for functioning of dpwje and dwjk (options)
CN115683538A (en) * 2022-11-25 2023-02-03 中国空气动力研究与发展中心低速空气动力研究所 Wind tunnel dust environment simulation device and method based on plasma excitation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381826B (en) * 1984-10-11 1986-12-10 Voest Alpine Ag PLASMA TORCH
US4800716A (en) * 1986-07-23 1989-01-31 Olin Corporation Efficiency arcjet thruster with controlled arc startup and steady state attachment
US5640843A (en) * 1995-03-08 1997-06-24 Electric Propulsion Laboratory, Inc. Et Al. Integrated arcjet having a heat exchanger and supersonic energy recovery chamber
JP2003086397A (en) * 2001-09-11 2003-03-20 Natl Inst For Fusion Science Artificial heliotropic wind generator
GB0502495D0 (en) * 2005-02-07 2005-03-16 Boc Group Plc Ejector pump
EP1993329A1 (en) * 2007-05-15 2008-11-19 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Plasma source
FR2962004B1 (en) * 2010-06-24 2013-05-24 Nci Swissnanocoat DEVICE FOR GENERATING A PLASMA JET

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653954A (en) * 1925-05-14 1927-12-27 Friedmann Louis Exhaust-steam injector
US3140421A (en) * 1962-04-17 1964-07-07 Richard M Spongberg Multiphase thermal arc jet
FR1385395A (en) * 1963-08-19 1965-01-15 Snecma Improvements to electro-thermal ejectors
US3282227A (en) * 1964-06-22 1966-11-01 Nielsen Mfg Co Adjustable venturi injector
FR1423078A (en) * 1964-11-19 1966-01-03 Snecma Electrothermal electric arc thruster

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168228A (en) * 1984-11-30 1986-06-11 Plasma Energy Corp Plasma arc bulk air heating apparatus
US4625092A (en) * 1984-11-30 1986-11-25 Plasma Energy Corporation Plasma arc bulk air heating apparatus
GB2312709A (en) * 1996-04-30 1997-11-05 David Johnston Burns Flying craft with magnetic field/electric arc vertical thrust producing means
RU2781310C1 (en) * 2022-04-06 2022-10-11 Анатолий Михайлович Криштоп Detonating pulsing water-jet engine (dpwje) and detonating water jet of krishtop (dwjk), and method for functioning of dpwje and dwjk (options)
CN115683538A (en) * 2022-11-25 2023-02-03 中国空气动力研究与发展中心低速空气动力研究所 Wind tunnel dust environment simulation device and method based on plasma excitation

Also Published As

Publication number Publication date
DE1954851A1 (en) 1971-05-06
FR2065621B1 (en) 1975-02-21
SU437320A3 (en) 1974-07-25
DE1954851B2 (en) 1973-12-13
JPS5628229B1 (en) 1981-06-30
FR2065621A1 (en) 1971-07-30
US3692431A (en) 1972-09-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees