Concentric layer ramjet fuel

Patent · Tue Mar 08 00:00:00 EST 1988

OSTI ID:5071395

Burdette, G W; Francis, J P

This patent describes a solid fuel ramjet grain comprising concentric layers of solid ramjet fuel having a perforation therethrough along the center axis of the grain. The performation is connected to a combustion after-chamber. The solid ramjet fuel layers comprises a pure hydroxyl-terminated polybutadiene hydrocarbon fuel or a mixture of a hydroxyl-terminated polybutadiene hydrocarbon fuel and from about 5 to about 60 percent by weight of an additive to increase the fuel regression rate selected from the group consisting of magnesium, boron carbide, aluminum, and zirconium such that, when buried in the operation of the ramjet, each fuel layer produces a different level of thrust.

• Assignee: Secretary of the Navy, Washington, DC
• Patent Number(s): US 4729317
• OSTI ID: 5071395
• Resource Relation: Patent File Date: Filed date 8 Dec 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
RAMJET ENGINES
COMBUSTION CONTROL
SOLID FUELS
CHEMICAL COMPOSITION
ALUMINIUM
APERTURES
BORON
BUTADIENE
CARBIDES
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTION KINETICS
FUEL ADDITIVES
FUEL SUBSTITUTION
HYDROXYL RADICALS
LAYERS
MAGNESIUM
POLYMERS
ZIRCONIUM
ADDITIVES
ALKALINE EARTH METALS
CARBON COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CONTROL
DIENES
ELEMENTS
ENGINES
FUELS
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
KINETICS
METALS
OPENINGS
ORGANIC COMPOUNDS
OXIDATION
POLYENES
RADICALS
REACTION KINETICS
SEMIMETALS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
330800* - Emission Control- Alternative Fuels