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

Patent · Thu Jan 01 00:00:00 EST 1998

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: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• 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

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