Patents by Inventor Todd Haugsjaahabink
Todd Haugsjaahabink 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).
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Publication number: 20230358174Abstract: A fuel pumping system of an aircraft, having a first boost pump; a main pump; a main pump feed conduit fluidly coupled to the main pump and configured to receive fuel after it has passed through the first boost pump; a main pump discharge conduit fluidly coupled to the main pump; an ejector fluidly coupled to the main pump feed conduit, between the first boost pump and the main pump; a bypass conduit fluidly coupled to the main pump discharge conduit and the ejector such that the bypass conduit is configured to provide fluid to the ejector drawn from the output of the first boost pump into the main pump; and a backpressure regulating valve fluidly coupled to the bypass conduit, and configured to transition to an open state when pressure in the main pump discharge conduit is above a threshold.Type: ApplicationFiled: May 6, 2022Publication date: November 9, 2023Inventors: Adrian L. Stoicescu, Donna Laboda, Edward W. Goy, Zachary Allen Ray LeDuc, Todd Haugsjaahabink, John M. Kassel
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Patent number: 11808218Abstract: A fuel flow system for a gas turbine engine includes a fuel inlet to admit a flow of fuel into the fuel flow system and a fuel outlet to direct the flow of fuel to the gas turbine engine from the fuel flow system. One or more pumps are positioned along a fuel flow path connecting the fuel inlet to the fuel outlet. A metering valve is in flow communication with the one or more pumps to meter the flow of fuel. A minimum pressure shut-off valve is fluidly connected to the one or more pumps, and a shutoff apparatus configured to permit selective energizing to stop the flow of fuel from the fuel outlet without operation of the metering valve.Type: GrantFiled: April 27, 2022Date of Patent: November 7, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventor: Todd Haugsjaahabink
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Publication number: 20230349332Abstract: A fuel flow system for a gas turbine engine includes a fuel inlet to admit a flow of fuel into the fuel flow system and a fuel outlet to direct the flow of fuel to the gas turbine engine from the fuel flow system. One or more pumps are positioned along a fuel flow path connecting the fuel inlet to the fuel outlet. A metering valve is in flow communication with the one or more pumps to meter the flow of fuel. A minimum pressure shut-off valve is fluidly connected to the one or more pumps, and a shutoff apparatus configured to permit selective energizing to stop the flow of fuel from the fuel outlet without operation of the metering valve.Type: ApplicationFiled: April 27, 2022Publication date: November 2, 2023Inventor: Todd Haugsjaahabink
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Publication number: 20230304442Abstract: A pump system for a gas turbine engine including a first pump connected to a fluid flow demand line for delivering fluid to a fluid flow demand and a second pump connected, in parallel to the first pump, to the fluid flow demand line and supplementing fluid to the actuation or burner system based on the fluid flow demand. A pressure regulating valve (PRV) is fluidly connected to the flow demand line for bypassing flow to a pump inlet pressure of the first pump and second pump, and controlling a modulated pressure flow signal to a bypass valve, wherein the bypass valve is in fluid communication with the second pump and the PRV for receiving modulated pressure from the PRV and regulating delivery of fluid from the second pump to a bypass flow line.Type: ApplicationFiled: May 15, 2023Publication date: September 28, 2023Inventors: Todd Haugsjaahabink, Ryan Shook
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Patent number: 11746710Abstract: A fluid flow system includes a main valve having a spool, a first chamber, and a second chamber. A pressure difference between the first chamber and the second chamber is configured to move the spool to control fluid flow. An electromechanical meter interface device (EMID) is in fluid communication with at least one of the first and second chambers of the main valve. The EMID is configured to meter fluid from a first source and a second source to the at least one of the first chamber and the second chamber. The first source has a different pressure from the second source. A fixed orifice is arranged between the main valve and the EMID. A fuel system for a gas turbine engine is also disclosed.Type: GrantFiled: November 23, 2021Date of Patent: September 5, 2023Assignee: Hamilton Sundstrand CorporationInventors: Morgan O'Rorke, Ryan Susca, Todd Haugsjaahabink
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Patent number: 11725647Abstract: A pumping system includes a first variable displacement pump having a first inlet and a first outlet. The first outlet is fluidically connected to a system outlet. A first actuator is mechanically coupled to a first displacement mechanism of the first variable displacement pump A second variable displacement pump includes a second inlet and a second outlet. The second outlet is fluidically connected to the system outlet. The pumping system also includes a second actuator mechanically coupled to a second displacement mechanism of the second variable displacement pump. An electrohydraulic servo valve is hydraulically connected to the first and second actuators. An electronic engine controller is in communication with the electrohydraulic servo valve and is configured to send electrical current to the electrohydraulic servo valve to drive the first actuator and the second actuator.Type: GrantFiled: May 18, 2021Date of Patent: August 15, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Ryan Susca, Morgan O'Rorke, Matej Rutar, Todd Haugsjaahabink
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Patent number: 11725585Abstract: In accordance with at least one aspect of this disclosure, a pump selector system can include a primary pump fluidly connected to provide a primary flow to a fluid destination, a secondary pump fluidly connected to provide a secondary flow to the fluid destination, and a selector valve disposed downstream of the primary pump and the secondary pump. The selector valve can be configured to toggle between a first position configured to allow flow from the primary pump to flow to the fluid destination and to block flow from the secondary pump to the fluid destination, and a second position configured to allow flow from the secondary pump to flow to the fluid destination and to block flow from the primary pump to the fluid destination.Type: GrantFiled: November 30, 2021Date of Patent: August 15, 2023Assignee: Hamilton Sundstrand Corporation (HSC)Inventors: Ryan Susca, Todd Haugsjaahabink, Morgan O'Rorke
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Publication number: 20230235822Abstract: In accordance with at least one aspect of this disclosure, a system can include, a moveable component configured to move between one or more positions, a biasing member operatively connected on a first side to bias the moveable component to a respective one of the one or more positions, and a preload member operatively connected to provide a force to a second side of the biasing member. An actuator can be operatively connected to move the preload member in response to a signal from a controller.Type: ApplicationFiled: January 21, 2022Publication date: July 27, 2023Applicant: Hamilton Sundstrand CorporationInventors: Matej Rutar, Todd Haugsjaahabink, Aaron F. Rickis
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Publication number: 20230235701Abstract: A fuel system can include a selection and shutoff valve (SSOV) configured to allow a primary flow having a primary flow pressure to pass therethrough in a first state such that the primary flow can travel to an output line. The SSOV can also be configured to shut off the primary flow in a second state to prevent the primary flow from travelling to the output line. In the second state, the SSOV can be configured to allow a secondary flow from a secondary flow source to pass therethrough such that the secondary flow can travel to the output line.Type: ApplicationFiled: January 21, 2022Publication date: July 27, 2023Applicant: Hamilton Sundstrand CorporationInventors: Morgan O'Rorke, Todd Haugsjaahabink, Matej Rutar, Ryan Susca
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Publication number: 20230167773Abstract: In accordance with at least one aspect of this disclosure, a pump selector system can include a primary pump fluidly connected to provide a primary flow to a fluid destination, a secondary pump fluidly connected to provide a secondary flow to the fluid destination, and a selector valve disposed downstream of the primary pump and the secondary pump. The selector valve can be configured to toggle between a first position configured to allow flow from the primary pump to flow to the fluid destination and to block flow from the secondary pump to the fluid destination, and a second position configured to allow flow from the secondary pump to flow to the fluid destination and to block flow from the primary pump to the fluid destination.Type: ApplicationFiled: November 30, 2021Publication date: June 1, 2023Inventors: Ryan Susca, Todd Haugsjaahabink, Morgan O'Rorke
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Publication number: 20230167771Abstract: A fluid delivery system can include a main pump disposed in a primary fluid line configured to receive a low pressure fluid on a low pressure side and output a high pressure fluid on a high pressure side to provide flow from the fluid source to a fluid destination via the primary fluid line. An interconnected valve system can be disposed in the primary fluid line configured to control flow through the primary fluid line.Type: ApplicationFiled: November 29, 2021Publication date: June 1, 2023Inventors: Morgan O'Rorke, Ryan Susca, Todd Haugsjaahabink
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Publication number: 20230160349Abstract: A fluid flow system includes a main valve having a spool, a first chamber, and a second chamber. A pressure difference between the first chamber and the second chamber is configured to move the spool to control fluid flow. An electromechanical meter interface device (EMID) is in fluid communication with at least one of the first and second chambers of the main valve. The EMID is configured to meter fluid from a first source and a second source to the at least one of the first chamber and the second chamber. The first source has a different pressure from the second source. A fixed orifice is arranged between the main valve and the EMID. A fuel system for a gas turbine engine is also disclosed.Type: ApplicationFiled: November 23, 2021Publication date: May 25, 2023Inventors: Morgan O'Rorke, Ryan Susca, Todd Haugsjaahabink
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Patent number: 11649768Abstract: A pump system for a gas turbine engine including a first pump connected to a fluid flow demand line for delivering fluid to a fluid flow demand and a second pump connected, in parallel to the first pump, to the fluid flow demand line and supplementing fluid to the actuation or burner system based on the fluid flow demand. A pressure regulating valve (PRV) is fluidly connected to the flow demand line for bypassing flow to a pump inlet pressure of the first pump and second pump, and controlling a modulated pressure flow signal to a bypass valve, wherein the bypass valve is in fluid communication with the second pump and the PRV for receiving modulated pressure from the PRV and regulating delivery of fluid from the second pump to a bypass flow line.Type: GrantFiled: August 20, 2021Date of Patent: May 16, 2023Assignee: Hamilton Sundstrand CorporationInventors: Todd Haugsjaahabink, Ryan Shook
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Publication number: 20230111165Abstract: A method of controlling an actuator includes switching a primary solenoid valve to a first mode to fluidically connect a supply pressure source to a control chamber of a pilot valve. A fluid from the supply pressure source is directed through the primary solenoid valve to fill the control chamber of the pilot valve and put the pilot valve in a first position. The first position fluidically connects a second chamber of the actuator to a return pressure source. The actuator includes a cylinder between the first chamber and the second chamber and a rod attached to the cylinder. The fluid from the supply pressure source is directed into the first chamber of the actuator to move the cylinder and the rod in a first direction while the pilot valve is in the first position.Type: ApplicationFiled: October 13, 2021Publication date: April 13, 2023Inventors: Ryan Susca, Morgan O'Rorke, Todd Haugsjaahabink
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Publication number: 20230055993Abstract: A pump system for a gas turbine engine including a first pump connected to a fluid flow demand line for delivering fluid to a fluid flow demand and a second pump connected, in parallel to the first pump, to the fluid flow demand line and supplementing fluid to the actuation or burner system based on the fluid flow demand. A pressure regulating valve (PRV) is fluidly connected to the flow demand line for bypassing flow to a pump inlet pressure of the first pump and second pump, and controlling a modulated pressure flow signal to a bypass valve, wherein the bypass valve is in fluid communication with the second pump and the PRV for receiving modulated pressure from the PRV and regulating delivery of fluid from the second pump to a bypass flow line.Type: ApplicationFiled: August 20, 2021Publication date: February 23, 2023Applicant: Hamilton Sundstrand CorporationInventors: Todd Haugsjaahabink, Ryan Shook
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Publication number: 20220372967Abstract: A pumping system includes a first variable displacement pump having a first inlet and a first outlet. The first outlet is fluidically connected to a system outlet. A first actuator is mechanically coupled to a first displacement mechanism of the first variable displacement pump A second variable displacement pump includes a second inlet and a second outlet. The second outlet is fluidically connected to the system outlet. The pumping system also includes a second actuator mechanically coupled to a second displacement mechanism of the second variable displacement pump. An electrohydraulic servo valve is hydraulically connected to the first and second actuators. An electronic engine controller is in communication with the electrohydraulic servo valve and is configured to send electrical current to the electrohydraulic servo valve to drive the first actuator and the second actuator.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Inventors: Ryan Susca, Morgan O'Rorke, Matej Rutar, Todd Haugsjaahabink
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Publication number: 20220372941Abstract: A fuel metering system includes a pump with an inlet and an outlet, a first flow path including a first valve fluidically connected to the outlet of the pump, and a second flow path including a second valve fluidically connected to the outlet of the pump, a third valve, and a fourth valve. An electrohydraulic servo valve in a first position hydraulically connects the inlet of the pump to the first, third, and fourth valves to close the first valve, open the third valve, open a first window of the fourth valve, and close a second window of the fourth valve. The electrohydraulic servo valve in a second position hydraulically connects the outlet of the pump to the first, third, and fourth valves to open the first valve, close the third valve, close the first window of the fourth valve, and open the second window of the fourth valve.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Inventors: Ryan Susca, Morgan O'Rorke, Matej Rutar, Todd Haugsjaahabink, Weishun William Ni, Benjamin T. Harder, Ryan Shook
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Publication number: 20220372968Abstract: A metering pump system includes a variable displacement pump having an inlet and an outlet, a flow sensing valve fluidically connected to the outlet of the variable displacement pump, and an actuator mechanically coupled to a displacement mechanism of the variable displacement pump. The metering pump system also includes an electronic engine controller in communication with the flow sensing valve. An electrohydraulic servo valve is electrically connected to the electronic engine controller and hydraulically connected to the actuator. The electrohydraulic servo valve is configured to hydraulically drive the actuator to move the displacement mechanism to change displacement of the variable displacement pump.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Inventors: Morgan O'Rorke, Ryan Susca, Matej Rutar, Todd Haugsjaahabink
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Patent number: 11421600Abstract: A metering valve spool controls a volume of fuel passing through a metering valve. The spool has a forward face. A line from a pump has a connection into a chamber. The face of the metering valve spool may contact a seal to block flow into the chamber. The metering valve is connected to a pressure regulating valve. The pressure regulating valve is to be connected to a combustor. A control selectively moves the metering valve spool to control a volume of fuel delivered from the chamber to the pressure regulating valve. The control is also programmed to move the metering valve spool to a position where a forward face of the metering valve spool seals on the seal to block flow from the pump from reaching the pressure regulating valve, and also from reaching the tap. A gas turbine engine is also disclosed.Type: GrantFiled: March 26, 2021Date of Patent: August 23, 2022Assignee: Hamilton Sundstrand CorporationInventors: Charles E. Reuter, Todd Haugsjaahabink, Aaron F. Rickis
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Patent number: 10619654Abstract: A method of operating a fail-fixed hydraulic actuator system is provided. The method includes providing an actuator in an initial position, electromechanically operating a valve assembly to hydraulically drive actuator movement and halting the hydraulic driving of the actuator movement by the valve assembly.Type: GrantFiled: May 5, 2017Date of Patent: April 14, 2020Assignee: HAMILTON SUNDSTRAND CORPORATIONInventor: Todd Haugsjaahabink