Patents Assigned to Sauer-Danfoss, Inc.
  • Patent number: 9826288
    Abstract: A sensing system for providing vehicle automation. The system includes a master controller that is electrically connected to a receiver that has a transceiver that provides over-the-air communication to a plurality of wireless sensors. The transceivers receive information from the plurality of wireless sensors in order to automate the steering and elevation of the vehicle.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: November 21, 2017
    Assignee: SAUER-DANFOSS INC.
    Inventors: Michael R. Olson, Jack Zeng
  • Patent number: 9637873
    Abstract: A sensing system for road construction equipment that includes a mounting bracket secured to a road construction vehicle that has an RFID tag. A wireless sensor is provided with an RFID reader so that when the wireless sensor is secured in the mounting bracket the RFID scanner is adjacent the RFID tag and scans and reads the RFID tag sending location information of the wireless sensor to a master controller.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 2, 2017
    Assignee: SAUER-DANFOSS INC.
    Inventors: Michael R. Olson, Jack Zeng
  • Patent number: 9127697
    Abstract: A hydraulic pressure control system having a variable displacement pump fluidly connected to a hydraulic motor. The pump provides flow to a first circuit upon demand. Remaining flow is provided to a second circuit. The second circuit includes a pilot controlled pressure reducing valve that adjusts the pumps outlet pressure based upon a sensed loads taken from a conduit between the pressure control valve and an active flow regulator valve.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: September 8, 2015
    Assignee: SAUER-DANFOSS INC.
    Inventors: Charles D. Throckmorton, Stephen D. Cromer, Glenn M. Mahony, Michael J. Stoltenow, Chad J. Daniel
  • Patent number: 9002582
    Abstract: A multi-sonic sensor having a housing, a removable clamp member, a sonic sensor array, and a magnetically connected temperature bail that operates in three modes—a running average, an outlier average, and a string line steering mode.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: April 7, 2015
    Assignee: Sauer-Danfoss Inc.
    Inventors: Kevin W. Bloms, Richard J. Wolf, Michael Olson, Scott Lee Kessler, Jack Zeng
  • Publication number: 20150066297
    Abstract: A multi-sonic sensor having a housing, a removable clamp member, a sonic sensor array, and a magnetically connected temperature bail that operates in three modes—a running average, an outlier average, and a string line steering mode.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Applicant: SAUER-DANFOSS INC.
    Inventors: Kevin W. Bloms, Richard J. Wolf, Michael Olson, Scott Lee Kessler, Jack Zeng
  • Publication number: 20150054279
    Abstract: A system for a hydraulically powered electric generator having a hydraulic motor coupled to an electric generator. The electric generator has a field coil that provides field excitation in the rotor. The rotor also has a permanent magnet that provides initial field excitation. A voltage regulator is connected to the rotor to adjust current in the field coil to maintain a constant output voltage as generator speed and load varies.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: SAUER-DANFOSS INC.
    Inventors: Douglas P. Anderson, Michael J. Stoltenow
  • Publication number: 20150053028
    Abstract: A bearing assembly having a cage that holds a plurality of rollers, an inner race, and an outer race. A layer of viscoelastic material positioned between the inner race and a swashplate and/or the outer race and the housing. Alternatively, the inner race has an elongated groove that receives an O-ring segment and a holder that is fitted over the inner race.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: SAUER-DANFOSS INC.
    Inventors: Jaromir Tvaruzek, Joseph Wright
  • Patent number: 8943949
    Abstract: The invention relates to a neutral setting apparatus for adjustable hydraulic machines, in particular the adjustment of the neutral position of a servo valve. In particular, the invention relates to servo adjustment devices with mechanically adjustable control pistons, wherein the forces necessary for this can be applied mechanically, electro-magnetically, pneumatically or hydraulically. The invention relates to a neutral setting apparatus of an adjustable hydraulic machine, with a housing in which a mounted input shaft is arranged, to one end of which a torque can be applied for rotating the input shaft about an axis. Thus providing a robust and cost-effective setting mechanism for the neutral position of a servo valve.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: February 3, 2015
    Assignee: Sauer-Danfoss Inc.
    Inventors: Reinhardt Thoms, Peter Bahna, Sebastian Bujna, Peter Chlebana, Miroslav Chmatil, Michael Knazek
  • Patent number: 8855834
    Abstract: A sensing system for providing string line vehicle automation. The system includes a master controller that is electrically connected to a receiver that has a transceiver that provides over-the-air communication to a plurality of sensors that are aligned along a string line. The transceivers receive information from the plurality of sensors in order to automate the control of the vehicle to ensure the vehicle drives in a straight line.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: October 7, 2014
    Assignee: Sauer-Danfoss Inc.
    Inventors: Jack Zeng, Michael R. Olson
  • Patent number: 8646266
    Abstract: The invention relates to a mobile machine having a traction drive and working hydraulics. The drive unit has a radial piston pump which is driven by a drive set and supplies working hydraulics. The radial piston pump is arranged on the axis of the output drive shaft of the drive set, between the drive set and a gearbox which is connected thereto via the output drive shaft. The drive set, the radial piston pump and the gearbox in this case form a compact drive unit.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: February 11, 2014
    Assignee: Sauer-Danfoss Inc.
    Inventors: Jeff Rea, Olaf Koltoff, Frank Ramm, Eckhard Skirde
  • Patent number: 8646167
    Abstract: A method of actuating a wireless sensor of road construction equipment. A bracket is secured to the road construction equipment that has a magnet and is able to receive a wireless sensor. An actuator is disposed within the housing of the wireless sensor that reacts to the magnetic field created by the magnet such that when the wireless sensor is attached to the bracket the sensor is operable and when detached from the bracket no longer operates.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: February 11, 2014
    Assignee: Sauer-Danfoss Inc.
    Inventor: Jack Zeng
  • Patent number: 8528594
    Abstract: Hydraulic system with a hydraulic machine, in particular an axial piston or radial piston unit, with rotating and moving machine components which are arranged in a housing. The housing is connected to a high-pressure and a low-pressure line of a working circuit, which is supplied with pressure fluid by means of a charge pump. The leakage fluid which occurs in the housing collects in a leakage fluid reservoir which is arranged below the rotating and moving hydraulic machine components in the working position of the hydraulic machine and is connected fluidically to the housing. The leakage fluid is pumped out of the leakage fluid reservoir into the low-pressure line of the working circuit by the charge pump.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 10, 2013
    Assignee: Sauer-Danfoss Inc.
    Inventor: Wilhelm Gollner
  • Publication number: 20130213214
    Abstract: The invention relates to a swashplate pivot bearing (10) in an adjustment unit of a hydraulic axial piston machine (1) with a timing/tracking mechanism (20) for the cage (14) of a roller bearing arrangement (11). The timing/tracking mechanism (20) is in this case distributed to the two end regions (16, 17, 18) of the roller bearing arrangement (11) in such a way that one part is active only during the pivoting of the swashplate (7) in one direction and the other part is active only during pivoting in the other direction. The timing/tracking mechanism (20) is preferably designed in the manner of a slotted-link control with guide tracks (24, 25, 26) and with a guide element (27, 28).
    Type: Application
    Filed: August 7, 2012
    Publication date: August 22, 2013
    Applicant: SAUER-DANFOSS INC.
    Inventor: Jaromir Tvaruzek
  • Publication number: 20130180100
    Abstract: A method of actuating a wireless sensor of road construction equipment. A bracket is secured to the road construction equipment that has a magnet and is able to receive a wireless sensor. An actuator is disposed within the housing of the wireless sensor that reacts to the magnetic field created by the magnet such that when the wireless sensor is attached to the bracket the sensor is operable and when detached from the bracket no longer operates.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: SAUER-DANFOSS INC.
    Inventor: Jack Zeng
  • Publication number: 20130174723
    Abstract: The invention relates to a neutral setting apparatus for adjustable hydraulic machines, in particular the adjustment of the neutral position of a servo valve. In particular, the invention relates to servo adjustment devices with mechanically adjustable control pistons, wherein the forces necessary for this can be applied mechanically, electro-magnetically, pneumatically or hydraulically. The invention relates to a neutral setting apparatus of an adjustable hydraulic machine, with a housing in which a mounted input shaft is arranged, to one end of which a torque can be applied for rotating the input shaft about an axis. Thus providing a robust and cost-effective setting mechanism for the neutral position of a servo valve.
    Type: Application
    Filed: May 10, 2012
    Publication date: July 11, 2013
    Applicant: SAUER-DANFOSS INC.
    Inventors: Reinhardt Thoms, Peter Bahna, Sebastian Bujna, Peter Chlebana, Miroslav Chmatil, Michael Knazek
  • Patent number: 8482523
    Abstract: A control device having an elongated shaft, a C-shaped magnet, and an anti-rotation pin. The magnet and the anti-rotation pin are encapsulated in a spherical member. The C-shaped magnet has opposing ends defining an open slot along the C-shaped main body. The anti-rotation pin extends through the slot and connects to the shaft.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: July 9, 2013
    Assignee: Sauer-Danfoss Inc.
    Inventors: Stanley N. Didier, Dale M. Gulick
  • Patent number: 8469677
    Abstract: A hydraulic power unit having a power shaft that rotates a cam. The cam actuates a piston assembly that contains a plurality of pistons wherein each piston has a piston body and fluid working chamber. An electrically actuated bypass valve is fluidly connected and in communication between an outlet check valve and a fluid working chamber of each piston such that when actuated the electrically actuated bypass valve directs fluid away from the outlet port into a reservoir to be returned to an inlet port.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: June 25, 2013
    Assignee: Sauer-Danfoss Inc.
    Inventor: Michael D. Gandrud
  • Patent number: 8469630
    Abstract: A sensor system for road construction equipment. The system includes a first conveyor for transporting material to a first auger that is positioned to receive the material. A first feeder sensor associated with the first conveyor is in over-the-air communication with a receiver to communicate the height of a material on the conveyor such that a master controller that is electrically connected to the receiver can regulate the amount of flow of material to the first conveyor.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 25, 2013
    Assignee: Sauer-Danfoss Inc.
    Inventors: Michael R. Olson, Jack Zeng
  • Publication number: 20130158812
    Abstract: A sensing system for road construction equipment that includes a mounting bracket secured to a road construction vehicle that has an RFID tag. A wireless sensor is provided with an RFID reader so that when the wireless sensor is secured in the mounting bracket the RFID scanner is adjacent the RFID tag and scans and reads the RFID tag sending location information of the wireless sensor to a master controller.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: SAUER-DANFOSS INC.
    Inventors: Michael R. Olson, Jack Zeng
  • Patent number: 8443596
    Abstract: The invention relates to a hydraulic drive (2) having a main pump (8), which can be adjusted in terms of delivery volume and delivery direction, and having a hydraulic motor (9), which main pump (8) and hydraulic motor (9) are connected to one another in a closed circuit via pressure lines (10A, 10B), and having a charge pump (14, 15) for charging into the closed circuit and for supplying pressurized fluid to at least one controlling device (11, 12), wherein the charge pump (15) has a separate drive motor (19) whose power/rotational speed can be specified independently of the rotational speed of the drive (3) of the main pump (8). In this way, the charge pump (15) can be of smaller dimensions than previously conventional, and the power balance of the hydraulic drive can be improved.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 21, 2013
    Assignee: Sauer Danfoss Inc.
    Inventor: Frank Ramm