Patent application number | Description | Published |
20080276403 | Connection Between A Wiper Arm And A Wiper Blade In Addition To Windscreen Wiper Arrangement - With a connection between a wiper arm of a windscreen wiper unit and a wiper blade arranged at one end of the wiper arm and arranged laterally from one side of the wiper arm, which is pushed with a bearing opening in a connecting piece on the wiper blade side axially onto a connecting stud on the wiper arm side projecting over the wiper arm side and is axially secured on the connecting stud by subsequent pivoting around the axis of the connecting stud by locking surfaces that clamp behind one another, one of the locking surfaces is formed on a locking element, which projects from a side of the connecting piece adjacent to the wiper arm and clamps behind a surface of the wiper arm adjacent to the connecting piece with the wiper blade secured axially to the wiper arm. | 11-13-2008 |
20100218330 | DEVICE FOR DETACHABLY LINKING A WIPER BLADE WITH A DRIVEN WIPER ARM - A wiper blade assembly for a windshield wiper. In one embodiment, the wiper blade assembly includes a connector pivotably mounted on a blade support element. The connector has a receiving portion shaped to receive a first part of the end portion of a wiper arm and further has a securing portion shaped to secure a second part of the end portion of the wiper arm. | 09-02-2010 |
20110056042 | DEVICE FOR DETACHABLY LINKING A WIPER BLADE WITH A DRIVEN WIPER ARM - A wiper blade assembly for a windshield wiper. In one embodiment, the wiper blade assembly includes a connector mounted on a blade support element. The connector has a receiving portion shaped to receive a first part of the end portion of a wiper arm and further has a securing portion shaped to secure a second part of the end portion of the wiper arm. | 03-10-2011 |
20120260450 | DEVICE FOR DETACHABLY LINKING A WIPER BLADE WITH A DRIVEN WIPER ARM - A wiper blade assembly for a windshield wiper. In one embodiment, the wiper blade assembly includes a connector mounted on a blade support element. The connector has a receiving portion shaped to receive a first part of the end portion of a wiper arm and further has a securing portion shaped to secure a second part of the end portion of the wiper arm. | 10-18-2012 |
Patent application number | Description | Published |
20130013167 | Method for controlling a corona ignition device - The invention relates to a method for controlling a corona ignition device which, in a cyclically operating combustion engine, ignites a fuel-air mixture by means of a corona discharge originating from an ignition electrode in that by means of a primary voltage applied to a primary side of a DC/AC converter, an electrical oscillator circuit is excited, which oscillator circuit is connected to the ignition electrode, wherein the impedance on the primary side of the DC/AC converter is successively measured. According to the invention it is provided that by evaluating the impedance measurements, a time of the start of a corona discharge is determined, this time is compared with a target value, and the activation of the primary side of the DC/Ac converter is changed depending on a result of this comparison. | 01-10-2013 |
20140358399 | METHOD FOR CONTROLLING A CORONA IGNITION DEVICE - The invention relates to a method for controlling a corona ignition device that has a high-frequency generator and a resonant circuit that contains an ignition electrode, wherein a primary voltage is fed into the high-frequency generator, the resonant circuit is excited by a secondary voltage generated by the high-frequency generator, and a corona discharge is thus produced at the ignition electrode, a series of values of an electric variable are measured during the excitation of the resonant circuit, it is checked, by evaluating the measured values, whether the corona discharge has transitioned into an arc discharge, and a determination of an arc discharge is responded to by reducing the secondary voltage and thus extinguishing the arc discharge. | 12-04-2014 |
20150040850 | CORONA IGNITION SYSTEM AND METHOD FOR CONTROLLING A CORONA IGNITION DEVICE - A corona ignition system that can be operated with relatively low expenditure in the vicinity of its resonant frequency. For each ignition, impedance and frequency values are stored in a data structure and are allocated to a respective voltage value. The data structure is complemented by an adjustment variable whose value specifies whether the present frequency value of the present engine cycle has been classified as too high or too low. The value of the adjustment variable is determined anew in each engine cycle. To that end, a comparison is made between a present frequency value with an earlier frequency value and a present impedance value with an earlier impedance value. Based upon the comparison, a value can be assigned to the adjustment value to cause a lower or higher frequency value of the corona discharge in the next cycle. | 02-12-2015 |
20150097626 | METHOD FOR ADJUSTING AN EXCITATION FREQUENCY OF AN OSCILLATING CIRCUIT OF A CORONA IGNITION DEVICE - A method for setting adjusting frequency of an electric oscillating circuit of a corona ignition device. The circuit is excited with a starting value (f1) of the excitation frequency and a reference value (I | 04-09-2015 |
20150114331 | METHOD FOR CONTROLLING A CORONA IGNITION DEVICE AND CORONA IGNITION DEVICE - A method for controlling a corona ignition device, which comprises an ignition electrode, at which a corona discharge is produced, a resonating circuit, which contains the ignition electrode, and a high-frequency generator connected to the resonating circuit, wherein the resonating circuit is excited with an AC voltage (U | 04-30-2015 |
20150260147 | METHOD FOR CONTROLLING A CORONA IGNITION SYSTEM OF A CYCLICALLY OPERATING INTERNAL COMBUSTION ENGINE - A method for controlling a corona ignition system in which a corona discharge is produced at an ignition electrode by exciting a resonating circuit with an AC voltage produced by a high-frequency generator. The AC voltage is adjusted to a target value depending on an operating state of the engine. Combustion onset is determined by evaluating an electrical variable of the resonating circuit and the target value of the AC voltage is reduced by a predefined value following a predefined number of engine cycles or a predefined operating period. The determined combustion onset is evaluated in one or more engine cycles. The target value for the momentary engine operating state is then increased if, by evaluation of the combustion onset, it is found that a predefined requirement is no longer met. Otherwise, the reduced target value is stored as a new target value for the momentary engine operating state. | 09-17-2015 |
Patent application number | Description | Published |
20110253114 | Method for Igniting a Fuel/Air Mixture of a Combustion Chamber, in Particular in an Internal Combustion Engine, by Creating a Corona Discharge - The invention relates to a method for igniting a fuel/air mixture in a cyclically operating internal combustion engine comprising one or more combustion chambers ( | 10-20-2011 |
20110297132 | METHOD FOR IGNITING A FUEL/AIR MIXTURE OF A COMBUSTION CHAMBER, IN PARTICULAR IN AN INTERNAL COMBUSTION ENGINE, BY CREATING A CORONA DISCHARGE - Method for igniting a fuel/air mixture in a cyclically operating internal combustion engine comprising combustion chambers which are delimited by walls that are at ground potential, using an ignition device comprising an ignition electrode provided in each combustion chamber, in which method, via an electrical DC/AC converter, an electric oscillating circuit is excited, which is connected to the secondary side of the DC/AC converter, and in which the ignition electrode, which is guided through one of the walls delimiting the combustion chamber in a manner in which it is electrically insulated from said walls by an insulator and extends into the combustion chamber, constitutes a capacitance in cooperation with the walls of the combustion chamber that are at ground potential, and in which the excitation of the oscillating circuit is controlled so a corona discharge igniting the fuel/air mixture is created in each combustion chamber at the ignition electrode. | 12-08-2011 |
20120260898 | Method for Igniting a Fuel-Air Mixture of a Combustion Chamber, Particularly in an Internal Combustion Engine by Generating a Corona Discharge - The invention relates to a method for igniting a fuel-air mixture in an internal combustion engine. An electric transformer excites an oscillating circuit connected to a secondary winding of the transformer. A capacitor is formed by an ignition electrode together with the wall of a combustion chamber through which it extends. The excitation of the oscillating circuit is controlled by generating a corona discharge igniting the fuel-air mixture. Before each ignition time the voltage applied to a primary winding of the transformer is incrementally increased, and the intensity of the current flowing in the primary winding is measured repeatedly at the same primary voltage. The variation of the values of the related primary current is determined, and the incremental increase in the primary voltage is aborted at a value thereof at which the variation of the primary current intensity reaches or exceeds a predetermined limit. | 10-18-2012 |