Patents by Inventor Robert J. Andrejczyk

Robert J. Andrejczyk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Inlet system with an inboard drain assembly for a rotorcraft engine
    Patent number: 12049830
    Abstract: A drain assembly includes a drain tube and a flapper assembly. The drain tube extends between a first tube end and a second tube end. The first tube end is configured to fluidly attach to an inlet plenum assembly of an engine system of a rotorcraft. The flapper assembly is positioned along the second tube end and comprises a flapper door that is configured to allow fluid to drain from the drain assembly to an engine compartment of the engine system of the rotorcraft. The flapper door is configured to prevent fluid, engine compartment gases, or flame from flowing into the drain assembly through the second tube end of the drain tube.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: July 30, 2024
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Robert J. Andrejczyk, William DiMaggio
  • INLET SYSTEM WITH AN INBOARD DRAIN ASSEMBLY FOR A ROTORCRAFT ENGINE
    Publication number: 20230340895
    Abstract: A drain assembly includes a drain tube and a flapper assembly. The drain tube extends between a first tube end and a second tube end. The first tube end is configured to fluidly attach to an inlet plenum assembly of an engine system of a rotorcraft. The flapper assembly is positioned along the second tube end and comprises a flapper door that is configured to allow fluid to drain from the drain assembly to an engine compartment of the engine system of the rotorcraft. The flapper door is configured to prevent fluid, engine compartment gases, or flame from flowing into the drain assembly through the second tube end of the drain tube.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 26, 2023
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Robert J. Andrejczyk, William DiMaggio
  • Adaptive engine acceleration for accessory loads
    Patent number: 9944400
    Abstract: A method of adaptive engine acceleration for accessory loads includes receiving an accessory load indicator corresponding to an accessory load of an engine. The accessory load indicator is compared to an adjustment threshold. An acceleration rate of the engine is increased based on determining that the accessory load indicator is below the adjustment threshold. The acceleration rate of the engine is decreased based on determining that the accessory load indicator is above the adjustment threshold.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 17, 2018
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Robert J. Andrejczyk, David H. Sweet
  • Engine electrical load shed control
    Patent number: 9849996
    Abstract: A method of engine electrical load shed control includes receiving an accessory load indicator corresponding to an accessory load of an engine. A request for acceleration of the engine is detected. One or more electrical buses are depowered based on the accessory load indicator exceeding a shedding threshold and detection of the request for acceleration of the engine.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: December 26, 2017
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: John H. Judge, Nicholas D. Kefalas, Mark P. Eisenhauer, Frederick L. Bourne, Robert J. Andrejczyk, Michael Patrick Wade
  • ENGINE ELECTRICAL LOAD SHED CONTROL
    Publication number: 20150225089
    Abstract: A method of engine electrical load shed control includes receiving an accessory load indicator corresponding to an accessory load of an engine. A request for acceleration of the engine is detected. One or more electrical buses are depowered based on the accessory load indicator exceeding a shedding threshold and detection of the request for acceleration of the engine.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventors: John H. Judge, Nicholas D. Kefalas, Mark P. Eisenhauer, Frederick L. Bourne, Robert J. Andrejczyk, Michael Patrick Wade
  • ADAPTIVE ENGINE ACCELERATION FOR ACCESSORY LOADS
    Publication number: 20150225088
    Abstract: A method of adaptive engine acceleration for accessory loads includes receiving an accessory load indicator corresponding to an accessory load of an engine. The accessory load indicator is compared to an adjustment threshold. An acceleration rate of the engine is increased based on determining that the accessory load indicator is below the adjustment threshold. The acceleration rate of the engine is decreased based on determining that the accessory load indicator is above the adjustment threshold.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Robert J. Andrejczyk, David H. Sweet