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Kühnel

Christian Kuhnel, Kassel DE

Patent application numberDescriptionPublished
20080290252Power matching method - A method of matching the power of a photovoltaic system producing electric energy by which a working point at which the system produces maximum power is set by changing the working point in an MPP matching process and by comparing the system power, which changes as a result thereof, is intended to be suited both for stationary characteristic curves and for non stationary generator characteristic curves and to be easy to carry out so that the best working point is always set, even when the system is subjected to external interfering factors. This is achieved in that one or several additional control steps or control cycles are performed in order to track during the matching process a power point changing under external impact for a working point of even higher power to be set.11-27-2008

Dieter Kuhnel, Frankfurt (oder) DE

Patent application numberDescriptionPublished
20090147425Overcurrent Protection Circuit When Setting Current Using a Package Control Pin - An overcurrent protection circuit for a current setting circuit is disclosed herein that prevents a user-selectable current from exceeding a current limit when an incorrect current selecting component (or current selecting circuit) is connected to an external control pin of a package by the user, or when the control pin is inadvertently grounded. The protection circuit senses a current (A06-11-2009

Donald S. Kuhnel, Karnes County, TX US

Patent application numberDescriptionPublished
20120111720WATER PURIFICATION APPARATUS AND PROCESS FOR PURIFYING WATER - A water purification apparatus is provided. The apparatus includes a casing and an electrode array. The casing has an outer surface, a substantially annular inner surface, and a water flow passage chamber surrounded by the substantially annular inner surface, the water flow passage chamber providing an outer annulus region and an inner central region. The electrode array features at least four electrodes in adjacent relationship to one another and circumferentially spaced apart from another about the outer annulus region, each electrode having a respective first planar surface and a respective second planar surface facing and substantially parallel to the respective second planar surface and the respective first planar surface of the adjacent electrodes on opposite sides thereof.05-10-2012

Hans-Ulrich Kuhnel, Monchengladbach DE

Patent application numberDescriptionPublished
20090044525EXHAUST-GAS COOLING DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An exhaust-gas cooling device (02-19-2009
20090050302COOLING DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A cooling device is proposed that can be produced by the diecasting process, and which has a heat-transfer unit surrounded by an outer shell, wherein a jacket through which coolant flows is formed between the heat-transfer unit and the outer shell, said jacket is subdivided by webs in such a way that a passage through which coolant flows is formed between the outer shell and the outer casing of the heat-transfer unit. To this end, the webs are arranged in such a way that this circulating flow is effected in a meander shape. Compared with a spiral flow, this results in degrees of freedom with regard to the arrangement of the coolant inlets and coolant outlets. Furthermore, such cooling devices can be produced and assembled in a cost-effective manner and have a high efficiency.02-26-2009
20090056321Heat transmission unit for an internal combustion engine - Heat transmission unit are known wherein ribs (03-05-2009

Patent applications by Hans-Ulrich Kuhnel, Monchengladbach DE

Hans-Ulrich Kühnel, Monchengladblach DE

Patent application numberDescriptionPublished
20090183861HEAT TRANSMISSION UNIT - Previous heat transmission units have only low cooling efficiencies in case of small fluid mass flows. According to the invention, it is proposed to configure a heat transmission unit (07-23-2009

Peter Kühnel, Bielefeld DE

Patent application numberDescriptionPublished
20100218356Extraction Tool and Method For Extracting A Wire Thread Insert - The present invention discloses an extraction tool and a method for extracting a wire thread insert. The extraction tool comprises a spindle body having a drive section for rotating the spindle body, and having an unscrew section for extraction of the wire thread insert. The unscrew section has a cylindrical shape with an exterior and a longitudinal axis, beyond whose exterior only one cutting element extends radially. This cutting element notches and engages the wire thread insert in order to extract it then from a tapped bore of a component.09-02-2010

Werner Kühnel, Uttenreuth DE

Patent application numberDescriptionPublished
20090039710POTENTIAL CONTROL FOR HIGH-VOLTAGE DEVICES - The present embodiments related to a device having a device element to which a high voltage can be applied. The device is provided with at least one additional conducting element which is disposed, embodied and connected in such a way that the element is assigned a defined potential value and a change to the electric field generated by the high voltage in the sense of a more favorable field distribution is effected by means of position, shape and potential value. According to the invention, maximum loads on switching elements are avoided and undesirable phenomena such as voltage breakdowns or flow voltages are counteracted as a result of the more favorable field distribution.02-12-2009
20090304144Computed tomography device - A computer tomography device is provided. The computer tomography device includes a rotating part and a stationary part. The rotating part has an X-ray tube for radiographing an object to be examined with X-rays and a detector for detecting the X-rays transmitted through the object. A stationary part has a data processing device for evaluating the detected measuring results, and a transmitter for supplying the X-ray tube and/or the detector and other rotating consumers with supply voltage by contactless transmission of electric power between the stationary and the rotating part. The transmitter is designed for contactless data transmission between the stationary part and the rotating part in addition to the contactless transmission of electrical power.12-10-2009

Patent applications by Werner Kühnel, Uttenreuth DE

Wolfram Kuhnel, Stuttgart DE

Patent application numberDescriptionPublished
20080233857Air Outlet in Particular for a Motor Vehicle - The invention relates to an air outlet (09-25-2008