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See all on WikipediaPintle injector - Wikipedia
The pintle injector is a type of propellant injector for a bipropellant rocket engine. Like any other injector, its purpose is to ensure appropriate flow rate and intermixing of the propellants as they are forcibly injected under high pressure into the combustion chamber, so that an efficient and controlled … See more
Advantages
Compared to some injector designs, pintle injectors allow greater throttling of bipropellant flow rates, although throttling rocket engines in … See more
1950s
In 1957, Gerard W. Elverum Jr. was employed by the Jet Propulsion Laboratory, and working under the supervision of Art … See moreWikipedia text under CC-BY-SA license Topic 6: Injector Design - MIT Rocket Team - MIT Wiki Service
WEBJul 7, 2022 — Pintle. The pintle injector design typically consists of just one element and works by impinging a central radial flow with an outer axial flow as shown below.
The Ultimate Guide to Designing a Liquid Rocket Pintle Injector
WEBDec 10, 2022 — Every rocket engine must have an instrument to inject the fuel and oxidiser in a chamber with certain speeds and ratios to combust and generate thrust. A pintle …
- Studies of pintle injection
Review of atomization and mixing characteristics of pintle injectors
WEBNov 1, 2022 — The pintle injector, which is also referred to as the movable injector, has gained the most attention in variable-thrust engines due to its flexible operation and …
WEBThe pintle injector design can deliver high combustion efficiency (typically 96–99%) and enables implementing some unique operating features, such as deep throttling and …
Design Procedure of a Movable Pintle Injector for Liquid Rocket …
WEBDec 20, 2016 — A pintle injector is a variable-area injector that can control the mass flow rate of propellants, thereby replacing a large injector plate having several injector …
A Numerical Approach to Optimize the Design of a …
WEBMay 26, 2023 — This study aimed to develop and demonstrate an optimization method for a pintle injector design. For this, we design a pintle injector for 1000 N thrust and 5 to 1 throttle ability liquid-propellant …
Review of atomization and mixing characteristics of pintle injectors
WEBNov 1, 2022 — A pintle injector is a type of variable-area injector that has been effectively applied in throttleable rocket engines. Among the several types of pintle injectors, …
Spray characteristics of a pintle injector based on annular orifice ...
WEBFeb 1, 2020 — In this study, a new design concept for a pintle injector is presented specifically to improve spray uniformity in a 400 N class engine; this maintains the …
Geometric Effects of Liquid Rocket Engine Pintle Injectors in ...
WEBJul 19, 2022 — Pintle injectors for liquid rocket engines have a single element protruding from the center of the head of combustors. In pintle injectors, a propellant is injected in the …
Experimental study on the spray characteristics of a gas–liquid …
WEBJan 14, 2022 — As a suitable choice for throttling liquid rocket engines and reducing engine weight, the pintle injector with unique spray characteristics can not only adjust the mass …
Spray combustion characteristics of a gas–liquid pintle injector …
WEBSep 8, 2023 — By pintle injector, we mean a promising injector for the throttleable engines with variable thrust capacities, which features the moveable pintle continuously …
Pintle Injectors - SpringerLink
WEBDec 16, 2010 — The pintle injector was developed and is used nearly exclusively in liquid rocket engine applications. The device is generally fabricated as a post with numerous …
Flow and spray characteristics of a gas–liquid pintle injector under ...
WEBApr 15, 2024 — Both the flow and spray characteristics of a gas–liquid pintle injector element under the backpressure environment were investigated experimentally and numerically. …
Design of pintle injector using Kerosene-LOx as propellant and …
WEBDec 1, 2022 — The present study addresses the 1) design and manufacture of a 1.5-tonf class liquid–liquid pintle injector with two-row rectangular orifice using kerosene and …
WEBPintle Injectors S.D. Heister Abstract Pintle injectors have been developed for applications in rocket propul-sion, but could potentially have high flowrate in other applications due …
(PDF) DESIGN OF A PINTLE INJECTOR - ResearchGate
WEBSep 12, 2019 — A pintle injector is a variable-area injector that can control the mass flow rate of propellants, thereby replacing a large injector plate having several injector …
Summary of pintle injector design. | Download Table
WEBA pintle injector is a thrust adjusting device that changes the injection area using movable parts. Pressure pulsation in the supply pipeline is simulated by periodically changing the …
Flow characteristics of a pintle injector element - ScienceDirect
WEBJan 1, 2019 — Pintle injector is one of the excellent injectors for liquid rocket engines [1]. Compared to other injectors, the pintle injector is advantageous by its low cost, intrinsic …
DESIGN AND OPTIMIZATION OF PINTLE INJECTOR FOR …
WEBMay 31, 2020 — A pintle injector is a variable-area injector that can control the mass flow rate of the fuel and oxidizer used, subsequently discarding an enormous injector plate …
Pintle Injector Rocket Engines - NSS
WEBAug 1, 2010 — The pintle style injector at the heart of Merlin 1C was first used in the Apollo Moon program for the Lunar Excursion Module (LEM) landing engine, one of the most …
Spray characteristics of liquid-liquid Pintle injector
WEBOct 1, 2018 — A Pintle injector was sized to meet the hypergolic propellant flow rates of a 500 N thrust engine. The injector identified as Type-I was fabricated and subjected to …
Experimental study on the spray characteristics of a pintle injector ...
WEBMay 1, 2022 — Abstract. A liquid–liquid pintle injector element was used as the test object to analyze its spray characteristics from four aspects: spray morphology, spray dynamic …
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