Danfoss Compressors GmbH Patent applications |
Patent application number | Title | Published |
20110189010 | METHOD OF MOUNTING A COMPRESSOR BLOCK ON A STATOR AND A COMPRESSOR ARRANGEMENT - The invention concerns a method of mounting a compressor block on a front side of a stator of an electric motor that comprises a stator bore and a stator axis, a support face arrangement of the compressor block being mounted on a contact area of the stator front side and the compressor block being connected to the stator. It is endeavoured to manufacture a compressor arrangement with a high efficiency. For this purpose, before mounting the compressor block ( | 08-04-2011 |
20110114357 | PROTECTIVE COVER ARRANGEMENT FOR AN ELECTRICAL UNIT - A protective cover arrangement ( | 05-19-2011 |
20100237810 | METHOD AND CONTROLLER FOR CONTROLLING AN IPM MOTOR - The present invention relates to a method for sensorless control of a permanent magnet motor exhibiting saliency, the method comprising the steps of determining a back electromotive force signal of a non-conducting phase winding of the permanent magnet motor, and applying a first drive voltage to at least one other phase winding of the permanent magnet motor, said first drive voltage being phase-shifted relative to the determined back electromotive force signal. Moreover, the present invention relates to a control system for carrying out the above-mentioned method. | 09-23-2010 |
20100236401 | METHOD OF CALIBRATING A CONNECTING ROD ARRANGEMENT AND CONNECTING ROD ARRANGEMENT - The invention relates to a method of calibrating a connecting rod arrangement comprising a crankshaft eye and a connecting rod eye. In order to achieve the best possible parallelism between the connecting rod eye and the crankshaft eye a controlled energy input occurs in at least one predefined surface area of the connecting rod, so that outside a neutral axis a local structural change and thus a tension in the connecting rod occurs. | 09-23-2010 |
20100231155 | CONTROLLER UNIT WITH INTEGRATED TEMPERATURE SENSOR - The present invention relates to a controller unit adapted to be releaseably attached to a corresponding terminal arranged on an exterior surface portion of a motor-driven compressor. The controller unit according to the present invention comprises an electrically isolating carrier member having one or more electrically conductive paths arranged thereon for transporting electrical power signals, the carrier member further having at least one thermally conductive path arranged thereon for transporting heat to a heat sensitive element of the controller unit in order to determine the temperature of the motor of the compressor. The present invention further relates to a method for carrying out the present invention. | 09-16-2010 |
20100083826 | METHOD OF MOUNTING A CYLINDER ARRANGEMENT OF A HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR ARRANGEMENT, AND HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a method of mounting a cylinder arrangement of a hermetically enclosed refrigerant compressor arrangement in a carrier arrangement ( | 04-08-2010 |
20100045216 | REDUCTION OF START-UP SEQUENCE - The present invention relates to a method for bringing a brushless motor, such as a multiphase brushless motor, operatively connected to for example a compressor into an optimal angular starting position in an energy saving manner, the method comprising the steps of applying a first drive voltage to a first phase winding of the motor and measuring a current flowing in another phase winding of said motor, said current being generated in response to the first drive voltage applied to the first phase winding. The method further comprises the step of switching the applied first drive voltage off when said current reaches a steady-state condition. By applying the method of the present invention a significant amount of power can be saved. The present invention further relates to a system for carrying out the present invention. | 02-25-2010 |
20100034679 | REFRIGERANT COMPRESSOR, PISTON OF A REFRIGERANT COMPRESSOR AND PISTON ARRANGEMENT - The invention concerns a refrigerant compressor with a cylinder, in which is arranged a piston ( | 02-11-2010 |
20100018245 | HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR - The invention concerns a hermetically enclosed refrigerant compressor with a housing comprising an electrical feed-through, a connection plate ( | 01-28-2010 |
20090257892 | SUCTION MUFFLER FOR A HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR - The invention concerns a suction muffler ( | 10-15-2009 |
20090251022 | ROTOR FOR AN ELECTRIC DRIVE MOTOR OF A REFRIGERANT COMPRESSOR - The invention concerns a rotor ( | 10-08-2009 |
20090236929 | ROTOR OF AN ELECTRICAL MACHINE AND MOTOR WITH SUCH A ROTOR - The invention concerns a rotor of an electrical machine, particularly a driving motor for a hermetically enclosed refrigerant compressor with a body ( | 09-24-2009 |
20090116978 | REFRIGERANT COMPRESSOR - The invention concerns a refrigerant compressor ( | 05-07-2009 |
20090110585 | REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a refrigerant compressor arrangement with a compressor unit ( | 04-30-2009 |
20090093909 | CONTROL SYSTEM AND A METHOD FOR CONTROLLING A REFRIGERATION SYSTEM COMPRISING TWO OR MORE COMPRESSORS - A control system ( | 04-09-2009 |
20090091206 | WINDING HEAD ISOLATION ELEMENT AND MULTIPHASE ELECTRIC MOTOR - The invention concerns a winding head isolation element ( | 04-09-2009 |
20090091200 | ROTOR WITH A THERMAL BARRIER AND A MOTOR WITH SUCH A ROTOR - The invention provides an electrical line-start motor comprising with a stator and a squirrel cage rotor adapted for rotation around a centre axis. The rotor comprises a squirrel cage winding in which a current is induced by corresponding windings of the stator, and a set of permanent magnets. To protect the magnets from excessive heat, the rotor comprises thermal barriers e.g. in the form of cavities located between the squirrel cage winding of the rotor and the magnets. Due to the thermal barriers, the thermal conductivity in a path between the windings and the magnets are reduced and the magnets are protected. | 04-09-2009 |
20090070990 | METHOD FOR MOUNTING A DRIVE SHAFT OF A COMPRESSOR - The invention concerns a method for mounting a drive shaft ( | 03-19-2009 |
20090068035 | REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a refrigerant compressor arrangement ( | 03-12-2009 |
20090068030 | HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a hermetically enclosed refrigerant compressor arrangement ( | 03-12-2009 |
20090065233 | PROTECTIVE COVER ARRANGEMENT FOR AN ELECTRICAL UNIT - A protective cover arrangement ( | 03-12-2009 |
20090064499 | METHOD AND BLANK FOR MANUFACTURING A COMPRESSOR BLOCK OF A SMALL-TYPE REFRIGERATION APPLIANCE, PARTICULARLY FOR A HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a method and a blank ( | 03-12-2009 |
20080296993 | ROTOR FOR AN ELECTRIC MOTOR - The invention provides a method of making a squirrel cage rotor for an electrical motor, and to a rotor for such a motor. The rotor comprises a rotor stack of a magnetically conductive material and a squirrel cage of an electrically conductive material. At least one of the short circuit rings are made by compression and sintering of a powder in which a solid element is embedded. The solid element facilitates manufacturing by increasing strength of potentially weak areas of the rotor, e.g. around openings into the shaft bore, rotor slots etc. | 12-04-2008 |
20080225447 | MOTOR START CIRCUIT - Motor start circuit for an induction motor, particularly a single-phase AC induction motor, with a main winding ( | 09-18-2008 |
20080198522 | Device and Method for Supplying Direct Voltage - The invention relates to a device and method for supplying direct voltage, wherein said device comprises a first connection arrangement ( | 08-21-2008 |