Michael Duerr
Michael Duerr, Horb DE
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20100202900 | HYDROSTATIC MACHINE HAVING A CONTROL DEVICE HAVING A RETURN ELEMENT FOR CONTROLLING A REGULATING VALVE - The invention relates to a hydrostatic machine having an actuating device for adjusting a displacement volume of the hydrostatic machine, wherein the actuating device has a return element ( | 08-12-2010 |
20110041681 | POSITIVE-DISPLACEMENT MACHINE - A hydraulic positive-displacement machine includes at least two radially or axially spaced-apart groups of cylinder-piston units. The cylinders of the primary group can be made to communicate fluidically with cylinders of the secondary group via intermediate valves. At least two intermediate valves can be switched independently of one another. | 02-24-2011 |
20110083553 | Hydraulic machine - A hydraulic machine having a variable intake volume/pump capacity includes working spaces ( | 04-14-2011 |
20110175004 | Low-Pressure Valve with an Inner and Outer Throughflow Cross Section - An electromagnetically actuated valve with a valve body which is assigned to a valve seat, is mechanically prestressed in a first direction toward a first switching position and can be adjusted by means of a magnetic actuator in a second, opposite direction into a second switching position is disclosed. The valve body has a planar contact surface which can be brought into sealing contact with a surface of the valve seat, which surface is planar at least in sections. | 07-21-2011 |
Michael Duerr, Horb-Betra DE
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20100322789 | AXIAL PISTON ENGINE HAVING A HOUSING WITH A RADIALLY WIDENED INTERIOR PORTION - The invention relates to a hydrostatic axial piston engine ( | 12-23-2010 |
Michael Duerr, Mannheim DE
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20080245410 | PHOTOVOLTAIC CELL - The present invention relates to a photovoltaic cell, a method of manufacturing such photovoltaic cell, and to uses of such cell. | 10-09-2008 |
20100024877 | METHOD OF PREPARING A POROUS SEMICONDUCTOR FILM ON A SUBSTRATE - A method of preparing a porous semiconductor film on a substrate comprising the steps: a) preparing, on a first substrate, an adhesion layer capable of providing electrical and mechanical contact between a porous semiconductor layer attached to said adhesion layer and said first substrate, b) applying on a second substrate that is capable of withstanding temperatures >=300° C. a spacer layer and applying a porous semiconductor layer on said spacer layer, c) applying an assisting layer on said porous semiconductor layer, said assisting layer providing support for said porous semiconductor layer, d) removing said spacer layer e) transferring said porous semiconductor layer supported by said assisting layer onto said ashesion layer, f) pressing said porous semiconductor layer onto said adhesion layer, g) removing said assisting layer from said porous semiconductor layer, thereby obtaining said first substrate having as a porous semiconductor film said porous semiconductor layer attached thereon by way of said adhesion layer. | 02-04-2010 |
Michael Duerr, Gechingen DE
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20090090881 | ELECTROMAGNETIC PRESSURE VALVE - An electromagnetic pressure regulating valve has a valve portion for conducting and regulating the pressure of an operating medium, such as oil, a magnet portion for actuating the valve portion for regulating the pressure of the operating medium and having a magnet housing, in which a magnet core is located that as needed exerts magnetic force on an armature, located in the magnet housing, a spring with a spring force generating a pressure activation threshold to be overcome upon regulation and located between the armature and an adjusting ball that is located in a pole piece of the magnet housing, and the spring has regions of different diameter. | 04-09-2009 |
Michael Duerr, Stuttgart DE
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20090050205 | METHOD OF OPTIMIZING THE BAND EDGE POSITIONS OF THE CONDUCTION BAND AND THE VALENCE BAND OF A SEMICONDUCTOR MATERIAL FOR USE IN PHOTOACTIVE DEVICES - The present invention relates to a semiconductor compound having the general formula A | 02-26-2009 |
20120034732 | METHOD OF OPTIMIZING THE BAND EDGE POSITIONS OF THE CONDUCTION BAND AND THE VALENCE BAND OF A SEMICONDUCTOR MATERIAL FOR USE IN PHOTOACTIVE DEVICES - The present invention relates to a semiconductor compound having the general formula A | 02-09-2012 |
Michael Duerr, Esslingen DE
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20080283119 | Method of Producing a Porous Semiconductor Film on a Substrate - The invention relates to a method of producing a porous semiconductor film and to a suspension of semiconductor particles. It further relates to a porous semiconductor film produced by the method, and to an electronic device, in particular a solar cell comprising said semiconductor film. | 11-20-2008 |
20110168242 | POROUS SEMICONDUCTOR FILM ON A SUBSTRATE - The invention relates to a method of producing a porous semiconductor film and the film resulting from such production. It furthermore relates to an electronic device incorporating such film and to potential uses of such film. | 07-14-2011 |
Michael Duerr, Giessen DE
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20130285552 | ION GENERATION IN MASS SPECTROMETERS BY CLUSTER BOMBARDMENT - The invention relates to devices and methods in mass spectrometers for the generation of ions of heavy molecules, especially biomolecules, by bombarding them with uncharged clusters of molecules. The analyte ions which are generated or released by cluster bombardment of analyte substances on the surface of sample support plates show a broad distribution of their kinetic energies, which prevents good ion-optical focusing. In the invention, the kinetic energies are homogenized in a higher-density collision gas. The collision gas is preferably located in an RF ion guide, more preferably an RF ion funnel, which can transfer the ions to the mass analyzer. The collision gas may be introduced with temporal pulsing, coordinated or synchronized with the pulsed supersonic gas jet. The collision gas may be pumped off again before the next supersonic gas pulse. In an advantageous embodiment, the collision gas can originate from the supersonic gas jet itself. | 10-31-2013 |