Patents by Inventor Edward A. Schlairet

Edward A. Schlairet 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).

  • Patent number: 10895231
    Abstract: A nozzle assembly for a fuel injector includes an injector housing having a casing and a stack within the casing, an outlet check movable within a nozzle cavity in the injector housing, and having a stop positioned within a stop cavity. A clearance is formed between the outlet check and the injector housing and fluidly connects a spring cavity to a stop cavity, and an anti-cavitation vent is formed in the stack and fluidly connects the spring cavity to a low pressure space. The anti-cavitation vent limits pressure changes in the spring cavity during fuel injection such that production of cavitation bubbles in the spring cavity is limited.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: January 19, 2021
    Assignee: Progress Rail Services Corporation
    Inventors: Rolando Lopez, Pitchaiah Potluru, Edward Schlairet
  • Publication number: 20200392928
    Abstract: A nozzle assembly for a fuel injector includes an injector housing having a casing and a stack within the casing, an outlet check movable within a nozzle cavity in the injector housing, and having a stop positioned within a stop cavity. A clearance is formed between the outlet check and the injector housing and fluidly connects a spring cavity to a stop cavity, and an anti-cavitation vent is formed in the stack and fluidly connects the spring cavity to a low pressure space. The anti-cavitation vent limits pressure changes in the spring cavity during fuel injection such that production of cavitation bubbles in the spring cavity is limited.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 17, 2020
    Applicant: Progress Rail Services Corporation
    Inventors: Rolando Lopez, Pitchaiah Potluru, Edward Schlairet
  • Patent number: 8312865
    Abstract: A method for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions includes the steps of removing mechanical fuel injectors and associated components and installing of electronic unit fuel injectors and associated components. Also disclosed is a kit for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: November 20, 2012
    Assignee: Haynes Corporation
    Inventors: James S. Dixon, Gregory Lee Schultz, Keith Mulder, Edward A Schlairet
  • Patent number: 8047181
    Abstract: A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: November 1, 2011
    Assignee: Haynes Corporation
    Inventors: Edward H. Harrison, Keith Mulder, Edward A Schlairet
  • Publication number: 20110197441
    Abstract: A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 18, 2011
    Inventors: Edward H. Harrison, Keith Mulder, Edward A. Schlairet
  • Patent number: 7905220
    Abstract: A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 15, 2011
    Assignee: Haynes Corporation
    Inventors: Edward H. Harrison, Keith Mulder, Edward A Schlairet
  • Publication number: 20100258088
    Abstract: A device is disclosed for sensing the speed of an EMD 567/645/710 two-cycle diesel engine having a crankcase, electronic fuel injectors and an electronic control system for controlling the electronic fuel injectors. The device includes a spline shaft sized for insertion into the crankcase of the engine so that the spline shaft rotates with the engine, a gear operably secured to the spline shaft to rotate with the spline shaft and sized to rotate with the engine in a 1:1 ratio, and at least one electronic sensor located adjacent the gear to sense rotation of the gear. The at least one electronic sensor is connectable to the electronic control system to provide electronic signals to the electronic control system for determining when to inject fuel with the electronic fuel injectors. Also disclosed is a method for retrofitting the engine and a kit for retrofitting the engine.
    Type: Application
    Filed: November 20, 2009
    Publication date: October 14, 2010
    Inventors: Edward H. Harrison, Keith Mulder, Edward A. Schlairet
  • Publication number: 20100258087
    Abstract: A method for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions includes the steps of removing mechanical fuel injectors and associated components and installing of electronic unit fuel injectors and associated components. Also disclosed is a kit for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 14, 2010
    Inventors: James S. Dixon, Gregory Lee Schultz, Keith Mulder, Edward A. Schlairet
  • Patent number: 7124966
    Abstract: A high pressure unit fuel injector includes a member with a fuel delivery opening to be intermittently supplied with high pressure fuel and a valve seat encircling the fuel delivery opening. A valve cage includes a check-valve chamber adjacent the valve seat. The chamber includes an annular ledge facing the valve seat and an inwardly facing wall surrounding the ledge. A disk is located within the chamber and has opposite first and second faces alternately seatable against the valve seat and the ledge respectively. The disk has a plurality of openings between the first and second faces and a circular-shaped groove formed in the first face about a center of the disk. The groove intersects the plurality of openings.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: October 24, 2006
    Assignee: Haynes Corporation
    Inventor: Edward A. Schlairet
  • Publication number: 20050263622
    Abstract: A high pressure unit fuel injector includes a member with a fuel delivery opening to be intermittently supplied with high pressure fuel and a valve seat encircling the fuel delivery opening. A valve cage includes a check-valve chamber adjacent the valve seat. The chamber includes an annular ledge facing the valve seat and an inwardly facing wall surrounding the ledge. A disk is located within the chamber and has opposite first and second faces alternately seatable against the valve seat and the ledge respectively. The disk has a plurality of openings between the first and second faces and a circular-shaped groove formed in the first face about a center of the disk. The groove intersects the plurality of openings.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 1, 2005
    Inventor: Edward Schlairet