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  • Patent number: 7153136
    Abstract: A free fall simulator with a flight chamber, a fan system to generate airflow in the flight chamber, and a noise attenuation housing substantially enclosing the fan system.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: December 26, 2006
    Assignee: Aero Systems Engineering, Inc.
    Inventors: Kathryn W. Hatlestad, Bruce C. Lindahl, Kent J. Moses
  • Publication number: 20130248282
    Abstract: A matrix or array of elongated tubular members, each member being formed by spirally winding a piece or pieces of material into a generally cylindrical shape, wherein the matrix or array is mounted in an airflow to reduce the noise associated with and/or produced by the airflow.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Applicant: Aero Systems Engineering, Inc.
    Inventors: Chunyuen R. Cheng, Thomas H. Nathan
  • Patent number: 6748800
    Abstract: An open jet wind tunnel having a test section, a nozzle exit and a collector in which the leading edge of the collector is configured with at least a portion being non-uniformly spaced from the nozzle exit.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 15, 2004
    Assignee: Aero Systems Engineering, Inc.
    Inventor: John J. Lacey, Jr.
  • Patent number: 5606110
    Abstract: A free piston shock tube/tunnel and a diaphragm construction for a free piston shock tube tunnel in which the diaphragm is provided with multiple rupture areas.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: February 25, 1997
    Assignee: Aero Systems, Engineering, Inc.
    Inventor: John J. Lacey, Jr.
  • Patent number: 6997049
    Abstract: An open jet wind tunnel having a test section, a nozzle exit and a collector in which the leading edge of the collector is configured with at least a portion being non-uniformly spaced from the nozzle exit.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: February 14, 2006
    Assignee: Aero Systems Engineering, Inc.
    Inventor: John J. Lacey, Jr.
  • Patent number: 8863895
    Abstract: A matrix or array of elongated tubular members, each member being formed by spirally winding a piece or pieces of material into a generally cylindrical shape, wherein the matrix or array is mounted in an airflow to reduce the noise associated with and/or produced by the airflow.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: October 21, 2014
    Assignee: Aero Systems Engineering, Inc.
    Inventors: Chunyuen R. Cheng, Thomas H. Nathan
  • Patent number: 5837890
    Abstract: A jet engine test cell capable of dissipating infrasound. The test cell includes an engine test section, an augmentor and an exhaust stack having a structure near its open end for dissipating infrasound.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: November 17, 1998
    Assignee: Aero Systems Engineering, Inc.
    Inventor: Dean F. Long
  • Patent number: 5505081
    Abstract: A free piston shot tube tunnel having a high speed valve for releasing the piston to start the piston shot. A further feature of the present invention is a free piston shock tube/tunnel having a high speed valve for releasing pressure from the compression tube into the shock tube.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 9, 1996
    Assignee: Aero Systems Engineering, Inc.
    Inventors: John J. Lacey, Jr., Bruce C. Lindahl
  • Patent number: 6725912
    Abstract: A wind tunnel and a heat exchanger for use in the wind tunnel. The heat exchanger is a plate-fin type heat exchanger having at least one heat exchanger unit with an inflow end and an outflow end, and air flow section and a coolant flow section. The air flow section includes fins generally aligned with the air flow through the exchanger and the coolant flow section includes fins defining a coolant passageway.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 27, 2004
    Assignee: Aero Systems Engineering, Inc.
    Inventors: Thomas G. Moll, Carl E. Jauch, C. Lynn Marksberry
  • Patent number: 10788399
    Abstract: Systems and methods for determining turbine engine system stability encompass measuring or otherwise determining values of performance parameters, storing a data set of such values in memory, generating a stability indicator, and displaying the stability indicator on an operator interface. The stability indicator is generated by a processor operating in data communication with the computer memory, utilizing customized software algorithms to remove high frequency components, apply an adaptive filter to adjust selected parameters according to a target value of a selected target parameter, and apply a stochastic filters to estimate true values of the selected parameters, based on the remaining variation.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 29, 2020
    Assignee: Aero Systems Engineering, Inc.
    Inventors: Dean Frederick Long, Kenneth William Simon, Grant August Radinzel
  • Patent number: 10352824
    Abstract: Systems and methods for determining turbine engine system stability encompass measuring or otherwise determining values of performance parameters, storing a data set of such values in memory, generating a stability indicator, and displaying the stability indicator on an operator interface. The stability indicator is generated by a processor operating in data communication with the computer memory, utilizing customized software algorithms to remove high frequency components, apply an adaptive filter to adjust selected parameters according to a target value of a selected target parameter, and apply a stochastic filters to estimate true values of the selected parameters, based on the remaining variation.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 16, 2019
    Assignee: Aero Systems Engineering, Inc.
    Inventors: Dean Frederick Long, Kenneth William Simon, Grant August Radinzel
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