Ketterer
Alexander Ketterer, Pettendorf/adlersberg DE
Patent application number | Description | Published |
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20090012671 | Method and Device for Operating an Internal Combustion Engine - During a first driving cycle, a combustion process is controlled in at least one combustion chamber for the purpose of performing a check on an emission reduction system of an internal combustion engine. During a second driving cycle following the first cycle, a check is performed to establish whether an error in the emission reduction system was detected during the first cycle. An idle time between the first and the second cycles is determined, in the event of an error of the emission reduction system detected during the first cycle. During the second cycle, the combustion process in the at least one combustion chamber is only controlled for the purpose of the check on the emission reduction system, in the event of an error detected in the emission reduction system during the first cycle and in the event of the idle time being longer than a pre-determined repair time. | 01-08-2009 |
20090090171 | Method for Verifying the Tightness of a Tank Bleeding System without Using a Pressure Sensor - In a method for verifying the tightness of a tank bleeding system with a tank bleeding valve, a stop valve for air-tightly closing the tank bleeding system relative to an atmosphere prevailing outside the motor vehicle, and a bistable pressure switch whose switched condition indicates whether a predefined switching pressure is exceeded or not reached in the tank bleeding system, in order to be able to determine the tightness of the tank bleeding system without using a pressure sensor, the following steps are carried out: waiting until the vehicle speed drops below a certain threshold; opening the tank bleeding valve; closing the tank bleeding valve when a negative pressure has been attained which lies below the switching pressure; measuring the duration from the time an initial pressure lies below the switching pressure until the moment the switching pressure is exceeded again; and assessing the tightness is assessed based on the measured duration. | 04-09-2009 |
Dominik Ketterer, Ubstadt-Weiher DE
Patent application number | Description | Published |
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20150267699 | Motor-Pump Unit - A motor pump unit with a multipart housing comprises a reversible internal gear machine and an electric motor with a rotor and a stator, which is coupled to the internal gear machine via a shaft rotatably mounted in the housing. One shaft end extends from the internal gear machine axially through the rotor that is carried by the shaft. First and second connecting channel ends in the working chamber of the internal gear machine are connected via check valves in the housing to a leakage channel loop, which is fluidically connected to a leakage channel that is fluidically connected to the working chamber, and which has a shaft leakage channel extending axially through the shaft and a rotor leakage channel that is fluidically connected thereto and extends axially through the rotor and/or a gap leakage channel between the rotor and stator, which is fluidically connected to the shaft leakage channel. | 09-24-2015 |
20150267701 | Motor-Pump Unit - A motor pump unit comprises an electric motor and a reversible internal gear machine. The latter has a multi-part housing in which an externally toothed pinion and an internally toothed hollow gear are arranged. A free space, in which a multi-part filler element is arranged, is configured between the gears. The filler element comprises radially movable sealing segments, between which a radial gap is configured. An axially movable sealing plate is arranged between axial faces of the gears and a housing part. This has a sealing plate control groove that is open to the faces of the gears and that can be pressurized, and which is open to the radial gap and located directly opposite thereto. The pinion segment and/or hollow gear segment has a radial sealing segment control channel that can be pressurized and extends transversely, is open to the radial gap, and ends directly in the radial gap. | 09-24-2015 |
Markus Ketterer, Stuttgart DE
Patent application number | Description | Published |
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20080217076 | Method and Device for Bidirectional Single-Wire Data Transmission - A device and a method for bidirectional single-wire data transmission of data information between an electronic control unit and at least one peripheral unit. A predefined constant voltage and/or a predefined constant current is applied to a driver device of the electronic control unit to produce voltage-coded and/or current-coded information. The voltage-coded and/or current-coded information is transmitted from the driver device of the electronic control unit to a driver device | 09-11-2008 |
Markus Ketterer, Gerlingen DE
Patent application number | Description | Published |
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20140147762 | FUEL CELL AND METHOD FOR SEALING A COOLANT CHAMBER OF A BIPOLAR PLATE OF A FUEL CELL - A method for sealing a coolant chamber ( | 05-29-2014 |
Michael Ketterer, Soest DE
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20140204570 | Explosion-proof LED Module - An explosion-proof LED module has at least one light-emitting diode, a heat sink connected to this and an LED cover that covers the LED at least in the emission direction. The LED cover extends into an insertion recess of the heat sink. In this insertion recess, the LED cover is surrounded by a casting compound resulting in sealing of the LED relative to an outer and possibly explosive atmosphere. As a result, an explosion-proof LED module can be provided whereby the manufacture of said explosion-proof LED module is relatively simple and possible in an economic manner in a short time from prefabricated parts. At the same time, the explosion-proof module is furthermore characterized in that sufficient cooling corresponding to the ignition protection type “intrinsic safety” and an embedding of the component according to ignition protection type “encapsulation” are given. | 07-24-2014 |
Thomas Ketterer, Tubingen DE
Patent application number | Description | Published |
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20090324584 | Nucleic Acid of Formula (I): GIXmGn, or (II): CIXmCn, in Particular as an Immune-Stimulating Agent/Adjuvant - The present invention relates to a nucleic acid of the general formula (I): G | 12-31-2009 |
20100048883 | METHOD FOR PURIFYING RNA ON A PREPARATIVE SCALE BY MEANS OF HPLC - The application describes a method for the preparative purification of RNA, which method is distinguished in that the RNA is purified by means of HPLC using a porous reversed phase as the stationary phase. The use of the porous reversed phase in this HPLC method is also described. | 02-25-2010 |
20130121988 | Nucleic Acid of Formula (I): GlXmGn, or (II): ClXmCn, in Particular as an Immune-Stimulating Agent/Adjuvant - The present invention relates to a nucleic acid of the general formula (I): G | 05-16-2013 |