| Patent application number | Description | Published |
|---|
| 20080257294 | Internal Combustion Engine and Method for Operating an Internal Combustion Engine by Means of a Laser Ignition Unit - The invention relates to a method for operating an internal combustion engine including a fuel-injection unit and a laser ignition-unit. According to the invention, during a compression cycle of the internal combustion engine, fuel is injected into the combustion chamber by means of the fuel-injection unit in such a way that an ignitable, round, flat mixed region of fuel and air forms on a plunger and a predetermined period elapses between the end of the fuel injection and the start of ignition in order to form the round flat mixed region. Ignition then takes place within the flat round mixed region by means of the laser-ignition unit. | 10-23-2008 |
| 20090296750 | Two-Color Double-Pulsed Laser for the Ignition of an Internal Combustion Engine - A laser device having a cavity which has a first laser-active region and at least one second laser-active region having a passive Q-switch as well as mirrors bound the cavity, the first laser-active region emitting light of a first wavelength, as a result of having pumping light applied to it, for which the cavity is developed as a resonator. The second laser-active region, having the passive Q-switch, in turn emits the light of a second wavelength, as a result of the application of the light of the first wavelength. The cavity is also developed as a resonator for the light of the second wavelength. | 12-03-2009 |
| 20100000486 | IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine, in particular of a motor vehicle, includes at least one pump light source, which provides a pump light. Furthermore, a laser device is provided, which is able to generate a laser light for beaming into a combustion chamber. A waveguide device transmits the pump light from the pump light source to the laser device. The laser device includes at least one refraction device, for example, a lens, which refracts the pump light and is in one piece therewith. | 01-07-2010 |
| 20100018487 | Method for Operating an Ignition Device for an Internal Combustion Engine - A method for operating an ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid that has a passive Q-switch. The duration of a pumping light pulse that is applied to the laser device is selected as a function of a specifiable number of laser pulses that is to be generated using the laser device. | 01-28-2010 |
| 20100024755 | OPTICAL DISTRIBUTOR FOR A LASER-BASED IGNITION SYSTEM, AND METHOD FOR THE OPERATION THEREOF - An optical distributor for the distribution of light, in particular laser light, between at least one optical input and at least one of several optical outputs includes at least one movably disposed light guide and a positioning member for moving the at least one light guide, the movably disposed light guide being movable by the positioning member such that at least one of the optical inputs is connectable via the light guide to at least one of the optical outputs. | 02-04-2010 |
| 20100031909 | Spark Plug for an internal combustion engine and method for the operation thereof - A spark plug for an internal combustion engine having a light guide device for supplying the spark plug with optical radiant power. A sensor arrangement is at least partially integrated into the spark plug but disposed outside the light guide device, and is embodied for the acquisition of operating data of the spark plug and/or of a combustion chamber associated with the spark plug. | 02-11-2010 |
| 20100065000 | IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid and which generates a laser beam, preferably in the form of a laser pulse, for eradiation into a combustion chamber, focusing optics for focusing the laser beam being allocated to the laser device. The laser beam has a beam profile that deviates from being circular. A pumping light source is provided for applying pumping light to the laser device. The beam profile of the laser beam and/or of the pumping light is rectangular or linear and/or circular and/or dumbbell-shaped. | 03-18-2010 |
| 20100218739 | METHOD FOR OPERATING AN IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A method is for operating an ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid having a passive Q-switch and which generates a laser pulse for eradiating into a combustion chamber, and having a pumping light source which provides a pumping light for the laser-active solid of the laser device. A point of ignition, at which the laser pulse is generated, is regulated to a specifiable setpoint value by setting a radiation intensity of the pumping light and/or a pumping duration and/or a pumping starting time and/or a wavelength of the pumping light. | 09-02-2010 |
| 20100252546 | METHOD FOR OPERATING AN IGNITION DEVICE - A method is described for operating an ignition device, in particular in an internal combustion engine, having a combustion chamber window for optically connecting the ignition device to a combustion chamber. An optical signal which may be detected in the region of the combustion chamber window is evaluated to deduce a state of the combustion chamber window. In particular, soiling of the combustion chamber window may be identified in this manner. | 10-07-2010 |
| 20100282195 | IGNITION DEVICE IN PARTICULAR FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR MANUFACTURING SAME - An ignition device, in particular for an internal combustion engine of a motor vehicle, having a laser device for generating laser pulses, and having an optical fiber device which is at least optically connected to the laser device for supplying the laser device with pumped light. The optical fiber device is configured and situated in the region of the laser device in such a way that radiation incident in the region of the laser device and/or in the region of a combustion chamber associated with the laser device may be injected into the optical fiber device. The disclosed configuration of the optical fiber device advantageously allow the radiation which is injected into the optical fiber device to be analyzed, in particular using a detector which is remotely situated, without having to provide additional, separate optical fiber devices for the radiation to be analyzed, because the radiation to be analyzed may be conducted directly via the same optical fiber that is already used for supplying pumped light. | 11-11-2010 |
| 20100282196 | METHOD FOR OPERATING A LASER AS AN IGNITION DEVICE OF AN INTERNAL COMBUSTION ENGINE - A method for operating a laser as an ignition device of an internal combustion engine, the laser including at least one laser crystal, a passive Q-switch and at least one pump device, particularly a laser diode, which optically pumps the laser crystal using pump radiation; at a temperature of the laser crystal below an operating boundary temperature, the pump radiation being changed, compared to a normal operation, in such a way that, compared to the normal operation, a greater radiation energy is converted to heat in the laser crystal. | 11-11-2010 |
| 20100285619 | METHOD FOR MANUFACTURING A SOLID STATE LASER HAVING A PASSIVEQ-SWITCH, - A method for manufacturing a laser-active solid having a bonded passive Q-switch is provided, which is particularly suitable for large quantities. | 11-11-2010 |
| 20100296530 | METHOD FOR OPERATING AN IGNITION DEVICE, AND AN IGNITION DEVICE - In a method for operating an ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device which includes a laser-active solid having a passive Q-switching system as well as an optical amplifier connected downstream from the passive Q-switching system ( | 11-25-2010 |
| 20110017162 | LASER DEVICE AND METHOD FOR OPERATING SAME - A method for operating a laser device which has a laser-active solid and a preferably passive Q-switch in which the laser device is acted upon by pumped light for generating a laser pulse. The radiation spontaneously emitted by the laser device is analyzed for drawing a conclusion about an operating state of the laser device, in particular about a laser pulse being generated. | 01-27-2011 |
| 20110023807 | LASER DEVICE AND METHOD FOR OPERATING SAME - A method for operating a laser device which has a laser-active solid and a preferably passive Q-switch in which the laser device is acted upon by pumped light for generating a laser pulse. According to the present invention, the pumped volume of the laser device acted upon by a pumped light, in particular of the laser-active solid, is changed. | 02-03-2011 |
| 20110041793 | LASER DEVICE AND OPERATING METHOD FOR THE LASER DEVICE - A method for operating a laser device, which has a laser-active solid-state body including a preferably passive Q switch, in which pumped light is applied to the laser device in order to generate a laser pulse. The laser device and/or an optical link between the laser device and a pumped light source supplying the pumped light is at least partially acted upon by an optical test pulse in order to check the integrity of a/the optical link between the laser device and a pumped light source supplying the pumped light. | 02-24-2011 |
