Method for removing solid particulate material from within liquid fuel injector assemblies

Patent · Wed Dec 31 23:00:00 EST 1997

OSTI ID:871819

Simandl, Ronald F ^[1]; Brown, John D ^[2]; Andriulli, John B ^[3]; Strain, Paul D ^[4]

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1. Knoxville, TN
2. Harriman, TN
3. Kingston, TN
4. Eads, TN

A method for removing residual solid particulate material from the interior of liquid fuel injectors and other fluid flow control mechanisms having or being operatively associated with a flow-regulating fixed or variable orifice. The method comprises the sequential and alternate introduction of columns of a non-compressible liquid phase and columns of a compressed gas phase into the body of a fuel injector whereby the expansion of each column of the gas phase across the orifice accelerates the liquid phase in each trailing column of the liquid phase and thereby generates turbulence in each liquid phase for lifting and entraining the solid particulates for the subsequent removal thereof from the body of the fuel injector.

• Research Organization: LOCKHEED MARTIN ENRGY SYST INC
• DOE Contract Number: AC05-84OR21400
• Assignee: Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5803983
• OSTI ID: 871819
• Country of Publication: United States
• Language: English

Related Subjects

/134/
accelerates
alternate
assemblies
associated
column
columns
compressed
compressed gas
comprises
control
control mechanism
control mechanisms
entraining
expansion
fixed
flow
flow control
flow-regulating
fluid
fluid flow
fuel
fuel injector
fuel injectors
gas
gas phase
generates
injector
injectors
interior
introduction
lifting
liquid
liquid fuel
liquid phase
material
mechanisms
method
method comprise
method comprises
moving solid
non-compressible
operatively
operatively associated
orifice
particulate
particulate material
particulates
phase
removal
removing
removing residual
removing solid
residual
residual solid
sequential
solid
solid particulate
solid particulates
subsequent
subsequent removal
trailing
turbulence
variable
variable orifice
whereby