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WO1999046499A1 - Rifled jet nozzle - Google Patents

Rifled jet nozzle Download PDF

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Publication number
WO1999046499A1
WO1999046499A1 PCT/KZ1999/000003 KZ9900003W WO9946499A1 WO 1999046499 A1 WO1999046499 A1 WO 1999046499A1 KZ 9900003 W KZ9900003 W KZ 9900003W WO 9946499 A1 WO9946499 A1 WO 9946499A1
Authority
WO
WIPO (PCT)
Prior art keywords
ledges
nozzle
section
jet nozzle
cross
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.)
Ceased
Application number
PCT/KZ1999/000003
Other languages
French (fr)
Inventor
Elena Sharunova
Ildar Ibragimov
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.)
TSAI ARTUR
Original Assignee
TSAI ARTUR
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
Application filed by TSAI ARTUR filed Critical TSAI ARTUR
Priority to AU28597/99A priority Critical patent/AU2859799A/en
Publication of WO1999046499A1 publication Critical patent/WO1999046499A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/97—Rocket nozzles

Definitions

  • the invention concerns to jet engineering, namely to the jet nozzle construction used in drives of jet apparatuses, in particular of air, artillery, underwater free rockets and also individual mini- rockets.
  • the mentioned nozzle is characterised by low tractive and power characteristics. Closest to the offered invention is the jet nozzle containing on an internal surface transversal ledges (the application of Germany # 4403469, cl. F 02 K 1/00, 1994). This nozzle also has low tractive and power characteristics. DISCLOSURE OF INVENTION
  • the jet nozzle contains body with ledges on an internal surface, the ledges are located longitudinally and make in the nozzle cross-section the cogged form.
  • One from lateral surfaces of each ledge is executed radial or concave.
  • the ledges can have in the cross-section the form of an arc.
  • the ledges also can be executed inside an insertion adjusted in the nozzle body.
  • the second variant of the offered jet nozzle contains body with ledges on an internal surface, the ledges have the form of a screw thread and make in the nozzle cross-section the cogged form.
  • the ledges in the cross-section can have the form of an arc. Besides the ledges can be executed inside an insertion adjusted in the nozzle body.
  • the offered device variants can be used both in subsonic and in supersonic nozzles of free rockets.
  • the gas stream formed under fuel combustion influences on ledges, adding to a rocket rotary movement round a centerline, that increases rocket stability in flight in atmosphere or during its movement in a water and promotes flying range increase and strike accuracy.
  • stabilisers which increase an aerodynamic or hydrodynamic resistance on magnitude from 1,5 up to 15 times and create effect of braking, decreasing of specific impulse magnitude and rocket velocity.
  • the rocket also acquires rotary movement round a centerline, besides stream supersonic gas extension shock waves create an additional force influencing on ledges and increasing of specific impulse magnitude i.e. the relation of draft to mass propellant consumption, and also rocket velocity.
  • FIG. 1 the longitudinal section of the first device variant is represented; on Fig. 2 - cross- section of the nozzle with one from lateral surfaces of each ledge executed radial; on Fig. 3 - cross- section of the nozzle with one from lateral surfaces of each ledge executed concave; on Fig. 4 - cross-section of the nozzle with a ledge in the form of an arc; on Fig. 5 - the longitudinal section of the offered device second variant with ledges in the form of a screw thread; on Fig. 6 - cross-section of the nozzle with one from lateral surfaces of a screw thread executed radial; on Fig.
  • the first variant of the offered device concerns to the jet nozzle containing on an internal surface of body 1 ledges 2 which are located longitudinally and make in the cross-section of the nozzle the cogged form. One from lateral surfaces of each ledge 2 is executed radial 3 or concave 4. The ledges can also have in the cross-section the form of an arc 5.
  • the jet nozzle according to the second variant contains on an internal surface of body 1 ledges 6, which have the form of a screw thread and make in the cross-section of the nozzle the cogged form.
  • body 1 ledges 6 which have the form of a screw thread and make in the cross-section of the nozzle the cogged form.
  • One from lateral surfaces of a screw thread is executed radial 7 or concave 8.
  • the ledges can have in the cross-section the form of an arc 9.
  • the ledges can be executed both on an internal surface of body 1 and inside an insertion 10, adjusted in nozzle body 1.
  • the mentioned insertion can be adjusted in rockets, which made earlier and have a smooth internal surface of the nozzle.
  • the gas stream formed under combustion of fuel influences ledges 2 or 6 and adds to a rocket rotary movement.
  • the stream supersonic gas extension shock waves create an additional force influencing on ledges 2 or 6.
  • the offered jet nozzle construction variants allow to increase a velocity of rocket movement up to 2 times, specific impulse up to 1,5 times, strike accuracy up to 1,8 times, decrease an aerodynamic or hydrodynamic resistance to rocket movement from 1,5 up to 15 times.
  • the offered jet nozzle construction variants can be used in production of rockets, for example free rockets.
  • the free rockets of various purposes - anti-tank, air-defence, tactical and strategic - for a defeat of the ground, air and marine targets, are on arms motor-shooting, armoured, airborne, artillery, naval and air forces.
  • the air free rockets are used for a defeat of the air and ground targets.
  • the free rockets of naval fleet are used for a defeat water-surface, coastal, underwater and also air targets.
  • the individual mini-rockets are intended for a defeat in near fighting of a manpower and easy armoured targets of the opponent.
  • the equipment of free rockets by offered construction jet nozzles will increase combatability of all forces using the indicated rocket, by their movement velocity increase both in atmosphere and in a water, flying range and strike accuracy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention concerns jet engineering, namely the jet nozzle construction used in drives of jet apparatuses, in particular of air, artillery, underwater free rockets and also individual minirockets. The jet nozzle according to the first variant contains body (1) with ledges (2) on an internal surface. The ledges (2) are located longitudinally and make in the nozzle cross-section the cogged form. One from lateral surfaces of each ledge (2) is executed radially (3) or concavely (4). The ledges (2) can have in the cross-section the form of an arc (5). In the second variant of the jet nozzle the ledges (6) have the form of a screw thread and make in the nozzle cross-section the cogged form. One of the lateral surfaces of a screw thread is executed radial (7) or concave (8). The ledges (6) in the cross-section can have the form of an arc. In each of the device variants the ledges (2 and 6) are executed both on an internal surface of the body (1) and inside an insertion (10) adjusted in the nozzle body (1).

Description

1 RIFLED JET NOZZLE
TECHNICAL FIELD The invention concerns to jet engineering, namely to the jet nozzle construction used in drives of jet apparatuses, in particular of air, artillery, underwater free rockets and also individual mini- rockets.
BACKGROUND ART There is the nozzle of a jet engine containing confuser, mouth of the reduced cut, diffuser; ring flap adjusted to the back diffuser edge, forms its inlet with the selectively decreased cut for maintenance of hot gases stream separation stability from the diffuser wall in the first flight phase (patent of France #2705739, cl. F 02 K 9/97, 1994).
The mentioned nozzle is characterised by low tractive and power characteristics. Closest to the offered invention is the jet nozzle containing on an internal surface transversal ledges (the application of Germany # 4403469, cl. F 02 K 1/00, 1994). This nozzle also has low tractive and power characteristics. DISCLOSURE OF INVENTION
Problem of the invention is the improving tractive and power characteristics of the nozzle. The technical result - increase of specific impulse, rocket movement velocity increase, decrease of an aerodynamic or hydrodynamic resistance to rocket movement, increase of flying range and strike accuracy is reached by that the jet nozzle contains body with ledges on an internal surface, the ledges are located longitudinally and make in the nozzle cross-section the cogged form. One from lateral surfaces of each ledge is executed radial or concave. The ledges can have in the cross-section the form of an arc. The ledges also can be executed inside an insertion adjusted in the nozzle body.
The second variant of the offered jet nozzle contains body with ledges on an internal surface, the ledges have the form of a screw thread and make in the nozzle cross-section the cogged form.
One from lateral surfaces of the thread is executed radial or concave. The ledges in the cross-section can have the form of an arc. Besides the ledges can be executed inside an insertion adjusted in the nozzle body.
The offered device variants can be used both in subsonic and in supersonic nozzles of free rockets.
During the subsonic nozzle work the gas stream formed under fuel combustion, influences on ledges, adding to a rocket rotary movement round a centerline, that increases rocket stability in flight in atmosphere or during its movement in a water and promotes flying range increase and strike accuracy. Herewith it is not necessary to adjust stabilisers which increase an aerodynamic or hydrodynamic resistance on magnitude from 1,5 up to 15 times and create effect of braking, decreasing of specific impulse magnitude and rocket velocity. During the supersonic nozzle work the rocket also acquires rotary movement round a centerline, besides stream supersonic gas extension shock waves create an additional force influencing on ledges and increasing of specific impulse magnitude i.e. the relation of draft to mass propellant consumption, and also rocket velocity.
BRIEF DESCRIPTION of DRAWINGS On Fig. 1 the longitudinal section of the first device variant is represented; on Fig. 2 - cross- section of the nozzle with one from lateral surfaces of each ledge executed radial; on Fig. 3 - cross- section of the nozzle with one from lateral surfaces of each ledge executed concave; on Fig. 4 - cross-section of the nozzle with a ledge in the form of an arc; on Fig. 5 - the longitudinal section of the offered device second variant with ledges in the form of a screw thread; on Fig. 6 - cross-section of the nozzle with one from lateral surfaces of a screw thread executed radial; on Fig. 7 - cross- section of the nozzle with one from lateral surfaces of a screw thread executed concave; on Fig. 8 - cross-section of the nozzle with ledges in the form of a screw thread having in the cross-section the form of an arc.
THE MODES FOR CARRING OUT THE INVENTION The first variant of the offered device concerns to the jet nozzle containing on an internal surface of body 1 ledges 2 which are located longitudinally and make in the cross-section of the nozzle the cogged form. One from lateral surfaces of each ledge 2 is executed radial 3 or concave 4. The ledges can also have in the cross-section the form of an arc 5.
The jet nozzle according to the second variant contains on an internal surface of body 1 ledges 6, which have the form of a screw thread and make in the cross-section of the nozzle the cogged form. One from lateral surfaces of a screw thread is executed radial 7 or concave 8. The ledges can have in the cross-section the form of an arc 9.
Both in first, and in the second variant of the invention the ledges can be executed both on an internal surface of body 1 and inside an insertion 10, adjusted in nozzle body 1. The mentioned insertion can be adjusted in rockets, which made earlier and have a smooth internal surface of the nozzle.
The adjustment of an insertion with ledges on usual rockets will allow to improve their parameters: to increase specific impulse, movement velocity, flying range in atmosphere or during movement in a water, and strike accuracy.
During the subsonic nozzle work the gas stream formed under combustion of fuel influences ledges 2 or 6 and adds to a rocket rotary movement. During the supersonic nozzle work the stream supersonic gas extension shock waves create an additional force influencing on ledges 2 or 6.
The offered jet nozzle construction variants allow to increase a velocity of rocket movement up to 2 times, specific impulse up to 1,5 times, strike accuracy up to 1,8 times, decrease an aerodynamic or hydrodynamic resistance to rocket movement from 1,5 up to 15 times. INDUSTRIAL APPLICABILITY
The offered jet nozzle construction variants can be used in production of rockets, for example free rockets.
The free rockets of various purposes - anti-tank, air-defence, tactical and strategic - for a defeat of the ground, air and marine targets, are on arms motor-shooting, armoured, airborne, artillery, naval and air forces.
The air free rockets are used for a defeat of the air and ground targets. The free rockets of naval fleet are used for a defeat water-surface, coastal, underwater and also air targets.
The individual mini-rockets are intended for a defeat in near fighting of a manpower and easy armoured targets of the opponent. The equipment of free rockets by offered construction jet nozzles will increase combatability of all forces using the indicated rocket, by their movement velocity increase both in atmosphere and in a water, flying range and strike accuracy.

Claims

4CLAIMS
1. The jet nozzle containing body (1) with ledges (2) on internal surface, distinguished by that the ledges (2) are located longitudinally and make in the nozzle cross-section the cogged form.
2. The jet nozzle by clause 1 distinguished by that one from lateral surfaces of each ledge (2) is executed radial (3).
3. The jet nozzle by clause 1 distinguished by that one from lateral areas of each ledge (2) is executed concave (4).
4. The jet nozzle by clause 1 distinguished by that the ledges (2) in the cross-section have the form of an arc (5).
5. The jet nozzle by clause 1, 2, 3 or 4 distinguished by that the ledges (2) are executed inside an insertion (10) adjusted in nozzle body (1).
6. The jet nozzle containing body (1) with ledges (6) on internal surface, distinguished by that the ledges (6) have the form of a screw thread and make in the nozzle cross-section the cogged form.
7. The jet nozzle by clause 6 distinguished by that one from lateral surfaces of the screw thread is executed radial (7).
8. The jet nozzle by clause 6 distinguished by that one from lateral surfaces of the screw thread is executed concave (8).
9. The jet nozzle by clause 6 distinguished by that the ledges (6) in the cross-section have the form of an arc (9).
10. The jet nozzle by clause 6, 7, 8 or 9, distinguished by that the ledges (6) are executed inside an insertion (10) adjusted in nozzle body (1).
PCT/KZ1999/000003 1998-03-10 1999-03-05 Rifled jet nozzle Ceased WO1999046499A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU28597/99A AU2859799A (en) 1998-03-10 1999-03-05 Rifled jet nozzle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KZ980227 1998-03-10
KZ980227.1 1998-03-10

Publications (1)

Publication Number Publication Date
WO1999046499A1 true WO1999046499A1 (en) 1999-09-16

Family

ID=19720787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KZ1999/000003 Ceased WO1999046499A1 (en) 1998-03-10 1999-03-05 Rifled jet nozzle

Country Status (2)

Country Link
AU (1) AU2859799A (en)
WO (1) WO1999046499A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2211939C2 (en) * 2001-04-05 2003-09-10 Федеральное государственное унитарное предприятие Государственный ракетный центр "КБ им. акад. В.П. Макеева" Rocket engine nozzle designed for rotating rocket relative to longitudinal axis

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1242956A (en) * 1959-08-25 1960-10-07 Cone determining a helical flow of the fluid passing through
FR1257609A (en) * 1949-07-11 1961-04-07 Soc Tech De Rech Ind Self-propelled, self-stabilizing projectile
DE1199663B (en) * 1962-09-11 1965-08-26 Dynamit Nobel Ag Nozzle for missiles or rocket-like projectiles
GB1148431A (en) * 1965-09-10 1969-04-10 Secr Defence Improvements in or relating to rocket projectiles
GB1267577A (en) * 1968-10-29 1972-03-22 Oerlikon Buehrle Ag Improvements in and relating to a nozzle for a spin-stabilised rocket
US4232843A (en) * 1977-05-25 1980-11-11 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Molded nozzle for rocket motor
GB2060078A (en) * 1979-10-10 1981-04-29 France E Flight Stabilization of Rocket Propelled Missiles
DE4403469A1 (en) 1994-02-04 1994-07-21 Alexander Schaefer Jet or rocket propulsion system
US5343698A (en) * 1993-04-28 1994-09-06 United Technologies Corporation Hexagonal cluster nozzle for a rocket engine
FR2705739A1 (en) 1993-05-28 1994-12-02 Europ Propulsion Rocket engine nozzle with selectively reduced output section.
US5450720A (en) * 1993-05-28 1995-09-19 Societe Europeenne De Propulsion Rocket engine nozzle having a notched diverging portion

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1257609A (en) * 1949-07-11 1961-04-07 Soc Tech De Rech Ind Self-propelled, self-stabilizing projectile
FR1242956A (en) * 1959-08-25 1960-10-07 Cone determining a helical flow of the fluid passing through
DE1199663B (en) * 1962-09-11 1965-08-26 Dynamit Nobel Ag Nozzle for missiles or rocket-like projectiles
GB1148431A (en) * 1965-09-10 1969-04-10 Secr Defence Improvements in or relating to rocket projectiles
GB1267577A (en) * 1968-10-29 1972-03-22 Oerlikon Buehrle Ag Improvements in and relating to a nozzle for a spin-stabilised rocket
US4232843A (en) * 1977-05-25 1980-11-11 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Molded nozzle for rocket motor
GB2060078A (en) * 1979-10-10 1981-04-29 France E Flight Stabilization of Rocket Propelled Missiles
US5343698A (en) * 1993-04-28 1994-09-06 United Technologies Corporation Hexagonal cluster nozzle for a rocket engine
FR2705739A1 (en) 1993-05-28 1994-12-02 Europ Propulsion Rocket engine nozzle with selectively reduced output section.
US5450720A (en) * 1993-05-28 1995-09-19 Societe Europeenne De Propulsion Rocket engine nozzle having a notched diverging portion
DE4403469A1 (en) 1994-02-04 1994-07-21 Alexander Schaefer Jet or rocket propulsion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2211939C2 (en) * 2001-04-05 2003-09-10 Федеральное государственное унитарное предприятие Государственный ракетный центр "КБ им. акад. В.П. Макеева" Rocket engine nozzle designed for rotating rocket relative to longitudinal axis

Also Published As

Publication number Publication date
AU2859799A (en) 1999-09-27

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