Patents by Inventor Monika Ivantysynova
Monika Ivantysynova 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: 11603209Abstract: A hydraulic propulsion system is disclosed which includes an input interface configured to receive mechanical power from a power source, a pressure source comprising one or more fixed or variable displacement pumps coupled to the input interface and adaptable to convert mechanical power to hydraulic power and controlling outlet pressure of the pressure source (system pressure), one or more variable displacement motors coupled to the pressure source via a corresponding high-pressure line configured to be mechanically coupled to one or more aerodynamic rotors of an aircraft and comprising a closed loop speed control arrangement in response to a commanded rotor speed, and a controller configured to control the speed of one or more variable displacement motors by providing a control signal for controlling the system pressure.Type: GrantFiled: October 8, 2018Date of Patent: March 14, 2023Assignee: Purdue Research FoundationInventors: Lizhi Shang, Monika Ivantysynova
-
Publication number: 20210188452Abstract: A hydraulic propulsion system is disclosed. The system includes one or more input interfaces configured to receive mechanical power from a power source, four or more variable displacement pumps coupled to the one or more input interfaces adaptable to generate a controlled variable quantity of fluid to be pumped out of each of the variable displacement pumps in response to a control input from a corresponding control interface, and four or more positive displacement motors each fluidly coupled to a corresponding variable displacement pump and configured to receive the pumped fluid, wherein each motor is configured to be mechanically coupled to one or more aerodynamic rotors of a multi-rotor vertical take-off and landing aircraft to control thrust and attitude.Type: ApplicationFiled: October 8, 2018Publication date: June 24, 2021Applicant: Purdue Research FoundationInventors: Lizhi SHANG, Monika IVANTYSYNOVA
-
Publication number: 20200307811Abstract: A hydraulic propulsion system is disclosed which includes an input interface configured to receive mechanical power from a power source, a pressure source comprising one or more fixed or variable displacement pumps coupled to the input interface and adaptable to convert mechanical power to hydraulic power and controlling outlet pressure of the pressure source (system pressure), one or more variable displacement motors coupled to the pressure source via a corresponding high-pressure line configured to be mechanically coupled to one or more aerodynamic rotors of an aircraft and comprising a closed loop speed control arrangement in response to a commanded rotor speed, and a controller configured to control the speed of one or more variable displacement motors by providing a control signal for controlling the system pressure.Type: ApplicationFiled: October 8, 2018Publication date: October 1, 2020Applicant: Purdue Research FoundationInventors: Lizhi SHANG, Monika IVANTYSYNOVA
-
Publication number: 20180010302Abstract: The present disclosure generally relates to a railroad track ballast tamping vehicle and associated methods of use, wherein the vehicle comprises: a rigid frame; a variable-displacement servo-pump operatively coupled to the vehicle; at least one linear hydraulic actuator operatively coupled to the frame at a proximal end of the at least one linear hydraulic actuator and comprising: at least one internal cavity for receiving hydraulic fluid from the variable-displacement servo-pump via a hydraulic hose; and an actuator rod passing through a first internal cavity and a second internal cavity of the at least one linear hydraulic actuator; and a tamping tool operatively coupled to a distal end of the at least one linear hydraulic actuator. A tamping pad associated with the tamping tool may be lowered into ballast underlying railroad tracks and between railroad track ties for performing ballast tamping operations.Type: ApplicationFiled: July 5, 2016Publication date: January 11, 2018Inventors: Damiano Padovani, Monika Ivantysynova
-
Patent number: 7896125Abstract: A hydraulic steering device for vehicles, especially construction machines, with which is simple and robust mechanically and can be precisely controlled, without possessing the disadvantages of the current state of the art. A hydraulic swivelling motor for producing the steering motion, which is connected to a variable flow rate pump with reversal of its direction of delivery.Type: GrantFiled: November 6, 2003Date of Patent: March 1, 2011Assignee: CNH Baumaschinen GmbHInventors: Monika Ivantysynova, Jürgen Weber, Jörg Grabbel
-
Patent number: 7543449Abstract: The invention concerns a hydraulic system for linear drives with a differential cylinder, in particular for mobile machines which through the use of displacement-control of the drives avoids the many and diverse disadvantages of the state of the art and renders possible a precise and energy-efficient control of linear drives with differential cylinders, and which is economical and simple to maintain and which can be well integrated into the total hydraulic system of such machines.Type: GrantFiled: January 14, 2004Date of Patent: June 9, 2009Assignee: CNH America LLCInventors: Monika Ivantysynova, Robert Rahmfeld, Erik Lautner, Jurgen Weber
-
Patent number: 7386978Abstract: A method is described for controlling a hydraulic system, particularly of mobile working machine, with at least one internal combustion engine driving at least one hydraulic pump with adjustable volumetric displacement and possibly additional fixed-displacement pumps.Type: GrantFiled: February 4, 2004Date of Patent: June 17, 2008Assignee: CNH America LLCInventors: Monika Ivantysynova, Robert Rahmfeld, Jürgen Weber
-
Patent number: 7356992Abstract: With a hydrostatic multi-motor drive unit with a least two hydraulic motors acting upon a common load, a solution should be created, with which a further operating range is covered by the use of several motors and at the same time a simple as possible and problem free coupling of the motors is assured. Furthermore, a method for controlling the drive unit is indicated, which permits continuous transitions between the different operating ranges. This is achieved in that the motors (2, 3) are connected with each other through at least one freewheel device (4), in which the motor (2) arranged after the freewheel device has a variable displacement volume.Type: GrantFiled: November 6, 2003Date of Patent: April 15, 2008Assignee: CNH Baumaschinen GmbHInventors: Monika Ivantysynova, Jürgen Weber
-
Publication number: 20080081724Abstract: Power split drive (PSD) transmissions capable of energy recovery and suitable for use in automotive applications. Each PSD transmission includes a mechanical transmission system for mechanically transmitting mechanical power between a rotatable input shaft and a rotatable output shaft, and a hydraulic transmission system containing a fluid for hydraulically transmitting hydraulic power between the input shaft and the output shaft, and at least a third shaft operatively interconnected to one of the mechanical and hydraulic transmission systems. The hydraulic transmission system is operatively coupled by at least a first planetary gear train to the mechanical transmission system. According to the invention, the PSD further comprises means operatively associated with at least one of the mechanical and hydraulic transmission systems for storing and releasing energy within the PSD transmission, the energy storing and releasing means comprising a flywheel or an accumulator or a combination thereof.Type: ApplicationFiled: September 12, 2007Publication date: April 3, 2008Applicant: PURDUE RESEARCH FOUNDATIONInventors: Monika Ivantysynova, Blake Carl, Kyle Williams
-
Publication number: 20060218913Abstract: The invention concerns a hydraulic system for linear drives with a differential cylinder, in particular for mobile machines which through the use of displacement-control of the drives avoids the many and diverse disadvantages of the state of the art and renders possible a precise and energy-efficient control of linear drives with differential cylinders, and which is economical and simple to maintain and which can be well integrated into the total hydraulic system of such machines.Type: ApplicationFiled: January 14, 2004Publication date: October 5, 2006Inventors: Monika Ivantysynova, Robert Rahmfeld, Erik Lautner, Jurgen Weber
-
Publication number: 20060182636Abstract: A method is described for controlling a hydraulic system, particularly of mobile working machine, with at least one internal combustion engine driving at least one hydraulic pump with adjustable volumetric displacement and possibly additional fixed-displacement pumpsType: ApplicationFiled: February 4, 2004Publication date: August 17, 2006Inventors: Monika Ivantysynova, Robert Rahmfeld, Jurgen Weber
-
Publication number: 20060162988Abstract: A hydraulic steering device for vehicles, especially construction machines, with which is simple and robust mechanically and can be precisely controlled, without possessing the disadvantages of the current state of the art. A hydraulic swivelling motor for producing the steering motion, which is connected to a variable flow rate pump with reversal of its direction of delivery.Type: ApplicationFiled: November 6, 2003Publication date: July 27, 2006Inventors: Monika Ivantysynova, Jurgen Weber, Jorg Grabbel
-
Publication number: 20060162329Abstract: With a hydrostatic multi-motor drive unit with a least two hydraulic motors acting upon a common load, a solution should be created, with which a further operating range is covered by the use of several motors and at the same time a simple as possible and problem free coupling of the motors is assured. Furthermore, a method for controlling the drive unit is indicated, which permits continuous transitions between the different operating ranges. This is achieved in that the motors (2, 3) are connected with each other through at least one freewheel device (4), in which the motor (2) arranged after the freewheel device has a variable displacement volume.Type: ApplicationFiled: November 6, 2003Publication date: July 27, 2006Inventors: Monika Ivantysynova, Jurgen Weber