PL423902A1 - Grain of propellant for the rocket engine with prolonged working time - Google Patents

Grain of propellant for the rocket engine with prolonged working time

Info

Publication number
PL423902A1
PL423902A1 PL423902A PL42390217A PL423902A1 PL 423902 A1 PL423902 A1 PL 423902A1 PL 423902 A PL423902 A PL 423902A PL 42390217 A PL42390217 A PL 42390217A PL 423902 A1 PL423902 A1 PL 423902A1
Authority
PL
Poland
Prior art keywords
grain
rocket engine
propellant
working time
prolonged working
Prior art date
Application number
PL423902A
Other languages
Polish (pl)
Other versions
PL235841B1 (en
Inventor
Piotr Wolański
Adam Okniński
Original Assignee
Instytut Lotnictwa
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 Instytut Lotnictwa filed Critical Instytut Lotnictwa
Priority to PL423902A priority Critical patent/PL235841B1/en
Publication of PL423902A1 publication Critical patent/PL423902A1/en
Publication of PL235841B1 publication Critical patent/PL235841B1/en

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  • Thermal Insulation (AREA)
  • Testing Of Engines (AREA)

Abstract

Ziarno ma co najmniej jedną wewnętrzną przegrodę o właściwościach termoizolacyjnych wbudowaną w osiowo symetryczne ziarno, wydłużającą drogę spalania stałego materiału pędnego względem dyszy silnika rakietowego. Przegrodę stanowi co najmniej jedna płyta (3) o średnicy mniejszej od średnicy ziarna, usytuowana koncentrycznie w osi ziarna. W innym wykonaniu przegrodę stanowi co najmniej jeden pierścień w kształcie odcinka rury o długości mniejszej od długości ziarna, usytuowany koncentrycznie w osi ziania i przylegający dolną krawędzią do podstawy ziarna od strony dyszy (6).The grain has at least one internal partition with thermal insulation properties built into the axially symmetrical grain, extending the combustion path of solid propellant relative to the rocket engine nozzle. The partition is at least one plate (3) with a diameter smaller than the diameter of the grain, located concentrically in the grain axis. In another embodiment, the septum is at least one ring in the shape of a section of pipe with a length less than the length of the grain, located concentrically in the axis of yarn and adhering with the bottom edge to the grain base from the nozzle side (6).

PL423902A 2017-12-14 2017-12-14 Grain of propellant for the rocket engine with prolonged working time PL235841B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL423902A PL235841B1 (en) 2017-12-14 2017-12-14 Grain of propellant for the rocket engine with prolonged working time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL423902A PL235841B1 (en) 2017-12-14 2017-12-14 Grain of propellant for the rocket engine with prolonged working time

Publications (2)

Publication Number Publication Date
PL423902A1 true PL423902A1 (en) 2019-06-17
PL235841B1 PL235841B1 (en) 2020-11-02

Family

ID=66809709

Family Applications (1)

Application Number Title Priority Date Filing Date
PL423902A PL235841B1 (en) 2017-12-14 2017-12-14 Grain of propellant for the rocket engine with prolonged working time

Country Status (1)

Country Link
PL (1) PL235841B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL439066A1 (en) 2021-09-29 2023-04-03 Sieć Badawcza Łukasiewicz - Instytut Lotnictwa Solid rocket propellant grain

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920443A (en) * 1955-05-25 1960-01-12 Higginson John Rocket propellant grain with helically grooved perforation
US3286462A (en) * 1963-10-09 1966-11-22 Thiokol Chemical Corp Gas generator having slow burning grain for variable gas flow
US3427805A (en) * 1966-11-29 1969-02-18 Thiokol Chemical Corp Combustion barrier for rocket motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920443A (en) * 1955-05-25 1960-01-12 Higginson John Rocket propellant grain with helically grooved perforation
US3286462A (en) * 1963-10-09 1966-11-22 Thiokol Chemical Corp Gas generator having slow burning grain for variable gas flow
US3427805A (en) * 1966-11-29 1969-02-18 Thiokol Chemical Corp Combustion barrier for rocket motor

Also Published As

Publication number Publication date
PL235841B1 (en) 2020-11-02

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