Patents by Inventor Matej Rutar

Matej Rutar 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).

  • Publication number: 20220372968
    Abstract: 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: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Morgan O'Rorke, Ryan Susca, Matej Rutar, Todd Haugsjaahabink
  • Publication number: 20220372941
    Abstract: 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: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Ryan Susca, Morgan O'Rorke, Matej Rutar, Todd Haugsjaahabink, Weishun William Ni, Benjamin T. Harder, Ryan Shook
  • Publication number: 20220372967
    Abstract: 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: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Ryan Susca, Morgan O'Rorke, Matej Rutar, Todd Haugsjaahabink
  • Publication number: 20220307491
    Abstract: A system comprises a variable displacement pump, a metering valve, a bypass line, a pressure regulating valve, a position sensor, and a control system. At least one fuel nozzle can be in fluid communication with the output line downstream of the metering valve, wherein the variable displacement pump is configured to supply fuel to the at least one fuel nozzle. The metering valve can be disposed in the output line for controlling outlet flow from the variable displacement pump. The system can also include an actuator line parallel to the variable displacement pump and connected to the output line to provide actuation pressure from pump output of the variable displacement pump.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 29, 2022
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Matej Rutar
  • Publication number: 20210301724
    Abstract: A system includes a flow inlet conduit and a primary conduit that branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to an equalization conduit (EC). A pressure equalization solenoid is connected to the EC to selectively connect a servo supply pressure conduit and/or a return pressure (PDF) conduit into fluid communication with the EC. An EBV rate limiting orifice (RLO) is connected in the PDF conduit. A bypass conduit branches from the PDF conduit on a first side of the EBV RLO and reconnects to the PDF conduit on a second side of the EBV RLO. An orifice bypass valve (OBV) is connected to the bypass conduit and acts to selectively bypass the EBV RLO.
    Type: Application
    Filed: March 30, 2021
    Publication date: September 30, 2021
    Inventors: Charles E. Reuter, Aaron F. Rickis, Francis P. Marocchini, Matej Rutar, August M. Coretto, Sachin Ramprashad
  • Publication number: 20210301766
    Abstract: A system includes a flow inlet conduit. A primary conduit branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to be controlled to apportion flow from the flow inlet conduit to the secondary conduit. A regulator valve is connected to be controlled by a pressure differential between pressure in the flow inlet conduit (PIN) and pressure in the secondary conduit (PSEC) to apportion flow from an inlet of the regulator valve to the flow inlet conduit.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Matej Rutar
  • Publication number: 20210301735
    Abstract: A system includes a flow inlet conduit. A primary conduit branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to be controlled to apportion flow from the flow inlet conduit to the secondary conduit. A secondary equalization valve (SEV) connects between the flow inlet conduit and the secondary conduit. The SEV is connected to be controlled by drain pressure (PD) to apportion flow from the flow inlet conduit to the secondary conduit.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 30, 2021
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Matej Rutar, Francis P. Marocchini
  • Publication number: 20210301725
    Abstract: A system includes a flow inlet conduit and a primary conduit that branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to an equalization conduit (EC) to apportion flow from the flow inlet conduit to the secondary conduit. A pressure equalization solenoid (PES) is connected to the EC to selectively connect at least one of a servo supply pressure (PFA) conduit or return pressure (PDF) conduit into fluid communication with the EC. A relief management valve (RMV) is connected in the PDF conduit.
    Type: Application
    Filed: March 31, 2021
    Publication date: September 30, 2021
    Inventors: Matej Rutar, Francis P. Marocchini, Aaron F. Rickis
  • Publication number: 20150276088
    Abstract: A pressure regulating valve includes a housing having a cavity therein with at least a first port, a second port and a third port in fluidic communication with the cavity, and a spool movable within the cavity. The spool separates the cavity into at least a first space and a second space, the first port and the second port are in alterable fluidic communication with the first space with movement of the spool altering a flow area connecting the first port with the second port. The third port connects to the second space through a variable flow area opening that is configured to alter a rate of movement of the spool.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Matej Rutar