Patents Assigned to Danfoss
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Publication number: 20120125578Abstract: The invention relates to a plate heat exchanger (9) with a plurality of heat exchanger plates (1, 13), each comprising at least one section showing indentations (2, 3, 14, 15), intended to be placed against corresponding indentations (2, 3, 14, 15) of a heat exchanger plate (1, 13) of a corresponding design. The heat exchanger (9) has a first type of indentations (2, 14) and a second type of indentations (3, 15), wherein the number of said first type of indentations (2, 14) and said second type of indentations (3, 15) are differing.Type: ApplicationFiled: November 17, 2011Publication date: May 24, 2012Applicant: Danfoss A/SInventor: Lars Persson
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Publication number: 20120125583Abstract: The invention relates to a plate heat exchanger (9), comprising a plurality of heat exchanger plates (1, 13), comprising at least one section showing indentations (2, 3, 14, 15), intended to be placed against corresponding indentations (2, 3, 14, 15) of a heat exchanger plate (1, 13) of a corresponding design. At least a first type of indentations (2, 14) and at least a second type of indentations (3, 15) is provided, wherein said first type of indentations (2, 14) and said second type of indentations (3, 15) are of a different design.Type: ApplicationFiled: November 17, 2011Publication date: May 24, 2012Applicant: Danfoss A/SInventor: Lars Persson
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Patent number: 8181338Abstract: A method for providing a multilayer composite includes the steps of providing a first composite comprising a film of a dielectric material with a front surface and an opposite rear surface, the front surface comprising a surface pattern; depositing an electrically conductive layer onto the surface pattern; providing a second composite comprising a film with a front surface and an opposite rear surface, the front surface comprising a surface pattern; depositing an electrically conductive layer covering at least a portion of the surface pattern; arranging the first composite on the second composite; and fixating the position of the first composite relative to the second composite.Type: GrantFiled: November 3, 2006Date of Patent: May 22, 2012Assignee: Danfoss A/SInventors: Mohamed Yahia Benslimane, Peter Gravesen
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Patent number: 8176734Abstract: A hydrostatic transmission having a hydraulic pump that is fluidly connected to a hydraulic motor. The transmission also has a pressure control valve that has first and second stages and is fluidly connected to the hydraulic pump. By utilizing the pressure control valve when the first stage of the pressure control is at a minimum pressure the second stage determines the minimum charge pressure setting for the hydrostatic transmission.Type: GrantFiled: December 3, 2008Date of Patent: May 15, 2012Assignee: Sauer-Danfoss Inc.Inventor: Charles D. Throckmorton
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Publication number: 20120103444Abstract: A control device (1) for a hydrostatic steering motor comprises supply and return pump and tank connections (P, T), a slide valve arrangement in which inner and outer slide element sleeves are rotatable relative to each other to both sides of a neutral position through a limited small angle, said sleeves mutually forming controlled supply and return passages connected to said motor having supply and return throttles which are closed when said sleeves are in a neutral position, bypass throttle means (7) between said pump and tank connections (P, T) being open when said sleeves are in a neutral position, said bypass throttle means (7) having a set of at least two variable orifices connected in series. In such a device the noise should be reduced when a higher supply pressure of hydraulic fluid is used.Type: ApplicationFiled: October 26, 2011Publication date: May 3, 2012Applicant: SAUER-DANFOSS APSInventor: Niels Arbjerg
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Publication number: 20120100025Abstract: A machine having two volute casings describing an orbital relative movement, one of the volute casings being fitted with at least one scroll and the other volute casing being equipped with at least two scrolls, the various scrolls delimiting a first series of variable-volume chambers belonging to a first compression or expansion stage, and a second series of variable-volume chambers belonging to a second compression or expansion stage, each stage having a high-pressure fluid passage and low-pressure fluid passage. A portion of the low-pressure fluid passage of the second stage is designed to open into one of the chambers of the second stage and is further away from the zone of convergence of the scrolls delimiting the variable-volume chambers of the second stage than a portion of the high-pressure fluid passage of the first stage that is designed to open into one of the chambers of the first stage.Type: ApplicationFiled: June 29, 2010Publication date: April 26, 2012Applicant: DANFOSS COMMERCIAL COMPRESSORSInventors: Stephane Watts, Patrice Bonnefoi, Pierre Ginies
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Publication number: 20120098471Abstract: An electrical system comprising an electrical motor and a method for controlling the electrical motor. The system comprises the electrical motor, a power source connection, a first motor control device placed between the power source connection and the motor, and a second motor control device placed in parallel with the first motor control device, the first motor control device supplying electrical power to the motor at least one first operating condition of the motor, and the second motor control device supplying electrical power to the motor at least one second operating condition of the motor, wherein the at least one first operating condition differs from the at least one second operating condition of the motor.Type: ApplicationFiled: October 20, 2010Publication date: April 26, 2012Applicant: Danfoss Drives A/SInventors: Tracy j. Newnam (Deceased), Charles J. Romenesko, Mark A. Bertolasi, Todd William Hanson, Jian M. Wu
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Publication number: 20120092646Abstract: The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement, the filter arrangement has at least a first filter, the suspect filter, which is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band, at least one second filter, the reference filter(s), which is configured as band pass filters allowing the passage of a second predetermined band(s), the reference band(s), and where the detector arrangement has at least one detector associated with the at least one of the filters. The sensor uses the band pass filters to measure the temperature of an emitting source. The sensor with advantage could be utilized within the IR band, and could advantageously be used to detect CO2.Type: ApplicationFiled: April 16, 2010Publication date: April 19, 2012Applicant: DANFOSS IXA A/SInventors: Thomine Stolberg-Rohr, Jens Moeller Jensen, Arun Krishna, Lars Munch, Rainer Buchner, Henrik Gedde Moos
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Publication number: 20120090379Abstract: The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement, the filter arrangement has at least a first filter, the suspect filter, which is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band, at least one second filter, the reference filter(s), which is configured as a band pass filter allowing the passage of a second predetermined band(s), the reference band(s), and where the detector arrangement has at least one detector associated with at least one of the filters. The band passes reference filters are distributed above and below the band pass of the suspect filter. The sensor with advantage could be utilized within the IR band, and could advantageously be used to detect CO2.Type: ApplicationFiled: April 16, 2010Publication date: April 19, 2012Applicant: DANFOSS IXA A/SInventors: Jens Moeller Jensen, Arun Krishna, Lars Munch, Rainer Buchner, Thomine Stolberg-Rohr, Henrik Gedde Moos
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Patent number: 8156738Abstract: The invention relates to a hydrostatic transmission having two bent axis- or swashplate-type axial piston units which are operated alternately as a pump and as a motor, with the two axial piston units being adjustable together with a pivotable dual yoke or by means of a pivotable dual swashplate. In order to minimize the dead volumes of the two axial piston units, the rotational axes of the two axial piston power units are offset with respect to the pivot axis of the dual yoke or of the swashplate by a magnitude such that, at all pivot angles, the power unit pistons, at dead center, are located in the direct vicinity of the bore end of the cylinder block.Type: GrantFiled: June 18, 2008Date of Patent: April 17, 2012Assignee: Sauer-Danfoss Inc.Inventor: Wilhelm Gollner
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Patent number: 8142170Abstract: A radial piston pump having external loading. The radial piston pump has an inner eccentric which is attached to a rotatable driveshaft, a cylinder block which has positionally fixed cylinder bores aligned radially with respect to the driveshaft, and displacement pistons which are mounted in a longitudinally movable manner in the cylinder bores. The displacement pistons have a piston head with a short casing height, and are mounted with their piston base on the eccentric, in such a way that the piston head, during its longitudinal movement, pivots in a predetermined angle range (??) about the longitudinal central axis of the associated cylinder bore.Type: GrantFiled: October 8, 2008Date of Patent: March 27, 2012Assignee: Sauer-Danfoss Inc.Inventor: Wilhelm Gollner
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Publication number: 20120068097Abstract: A method for operating a valve comprising a first valve part (1) having at least one opening (2, 5) formed therein and a second valve part (3) having at least one opening (4, 6) formed therein is disclosed. The first (1) and second (3) valve parts are adapted to perform relative movements, the relative position of the opening(s) (2, 5) of the first valve part (1) and the opening(s) (4, 6) of the second valve part (3) defining an opening degree of the valve by means of an overlapping area of an opening (2, 5) of the first valve part (1) and an opening (4, 6) of the second valve part (3).Type: ApplicationFiled: March 26, 2010Publication date: March 22, 2012Applicant: Danfoss A/SInventor: Claus Thybo
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Publication number: 20120060542Abstract: A valve comprising an inlet opening adapted to receive fluid medium and at least two outlet openings, each being fluidly connected to a flow path being arranged fluidly in parallel, is disclosed. The valve comprises a first valve part (1) and a second valve part (3). The first valve part (1) has at least two flow passages (2) formed therein, each flow passage (2) being fluidly connected to one of the outlet openings. The second valve part (3) has at least one primary flow passage (4) and at least one secondary flow passage (5, 6, 7) formed therein, the primary flow passage(s) (4) and the secondary flow passage(s) (5, 6, 7) being fluidly connected to the inlet opening.Type: ApplicationFiled: March 15, 2010Publication date: March 15, 2012Applicant: DANFOSS A/SInventor: Claus Thybo
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Publication number: 20120061136Abstract: The invention concerns a control box arrangement (1) with a control box (2) and a mounting plate (4) comprising a front side (18) and a rear side (11) and an opening (5) in which the control box (2) is inserted from the front side (18). It is endeavoured to enable simple mounting and dismounting. For this purpose, the control box (2) comprises at least one locking bar (7), which rests on the rear side (11) in a mounting position (9), a mounting element (10) being insertable in the control box (2) to displace the locking bar (7) to the mounting position (9).Type: ApplicationFiled: June 18, 2009Publication date: March 15, 2012Applicant: Danfoss A/sInventors: Jerry Hultgreen, Hans Erik Fogh
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Patent number: 8122783Abstract: A joystick having a movable member that includes a shaft portion and a spherical portion wherein the shaft portion has a diameter less than the spherical portion. An actuating member is secured to the shaft portion of the movable member to provide actuation of the movable member. A magnet is disposed within the spherical portion of the movable member and positioned adjacent a three axis sensor such that the magnet moves in a hemispherical pattern along the three axis sensor to operate a device.Type: GrantFiled: February 22, 2008Date of Patent: February 28, 2012Assignee: Sauer-Danfoss Inc.Inventors: Jesse W. Olson, Joseph K. Krueger
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Patent number: 8118211Abstract: A method for the low-temperature pressure sintering of at least one electronic unit to be contacted thermally, firmly connected mechanically, and located on a substrate, comprising the following steps: pressing the electronic unit using a mold enveloping matrix while sparing a connecting surface of the substrate for a heat sink connection, providing a heat sink plate, applying a sintering connecting layer onto the spared region of the connecting surface and/or onto to the region of the heat sink plate provided for contacting, and bonding of the heat sink plate to the substrate of the electronic unit in the region of the connecting surface using silver low-temperature pressure sintering technology.Type: GrantFiled: January 16, 2009Date of Patent: February 21, 2012Assignee: Danfoss Silicon Power GmbHInventors: Ronald Eisele, Mathias Kock
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Patent number: 8117837Abstract: A hydrostatic transmission using a hydrostatic pump, a hydrostatic motor, and a pressure compensating load sensing auxiliary pump. The hydrostatic pump is fluidly connected to the hydrostatic motor using fluid lines and a center section. The hydrostatic pump additionally has an input shaft that drives the hydrostatic pump to provide the hydrostatic motor with power. Additionally, the pressure compensating load sensing auxiliary pump is in line with the hydrostatic pump and is rotated with the input shaft. This configuration allows the input shaft to operate the power takeoff (PTO) shaft while the hydrostatic motor output shaft operates the axles of a vehicle via a differential.Type: GrantFiled: December 17, 2003Date of Patent: February 21, 2012Assignee: Sauer-Danfoss Inc.Inventor: Jeffrey J. Karabetsos
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Patent number: 8121734Abstract: The invention provides a method for controlling the climate of an environment, e.g. a house, which exchanges thermal energy with an ambient space. Energy is supplied to the environment e.g. by radiators, floor heating, electrical heating fans etc. According to the method, a numerically expressed comfort criteria, and a numerically expressed weight of importance of compliance with the comfort criterion are defined. Subsequently, a supply of a specific amount of energy is considered, and with respect to that amount, a numerical expression of a degree of compliance with the comfort criterion, and a numerical expression of costs related to the supply of that amount of energy are provided.Type: GrantFiled: February 8, 2007Date of Patent: February 21, 2012Assignee: Danfoss A/SInventors: Lars Finn Sloth Larsen, Honglian Thybo, Claus Thybo
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Patent number: 8117920Abstract: The invention provides a restriction element for a pressure sensor to protect the pressure element from flow related damage. The pressure sensor comprising a housing with a fluid inlet channel and a chamber with a pressure element. The pressure element comprises a housing part with a recess covered by a sealing diaphragm forming a cavity. In the oil-filled cavity a sensor element is placed. The restriction element is placed in front of the sealing diaphragm protecting the pressure element and especially the sealing diaphragm from a damaging pulse or other flow related damages caused by sudden changes in a flow system for example by closing a valve.Type: GrantFiled: November 21, 2007Date of Patent: February 21, 2012Assignee: Danfoss A/SInventor: Jes Vogler
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Publication number: 20120037688Abstract: The invention relates to a method for producing a connection between a semiconductor component and semiconductor component and semiconductor module resistant to high temperatures and temperature changes by means of a temperature impinging process, wherein a metal powder suspension is applied to the areas of the semiconductor module to be connected later; the suspension layer is dried, outgassing the volatile components and generating a porous layer; the porous layer is pre-sealed without complete sintering taking place throughout the suspension layer; and, in order to obtain a solid electrically and thermally conductive connection of a semiconductor module to a connection partner from the group of: substrate, further semiconductor or interconnect device, the connection is a sintered connection generated without compression by increasing the temperature and made of a dried metal powder suspension that has undergone a first transport-safe contact with the connection partner in a pre-compression step and has beeType: ApplicationFiled: February 4, 2010Publication date: February 16, 2012Applicant: DANFOSS SILICON POWER GMBHInventors: Mathias Kock, Ronald Eisele