Patent application number | Description | Published |
20080257321 | Valve and Cylinder Head Cover for Crankcase Ventilation of an Internal Combustion Engine - A valve for crankcase ventilation of an internal combustion engine comprises a fresh-air side for connection with an intake section of the internal combustion engine, an engine side for connection with the crankcase and a valve insert movable as a whole for changing the flow resistance through the valve. Said valve inset is held inside said valve without pre-load. Said valve insert is designed to be freely displaced to a deventilation limit-stop position under negative pressure on the fresh-air side relative to the engine side, and to be freely displaced to a ventilation limit-stop position under excess pressure on the fresh-air side relative to the engine side. The valve insert id designed to open a deventilation cross-section in the deventilation limit-stop position and to open a deventilation cross-section that is different from the ventilation cross-section in the ventilation limit-stop position. | 10-23-2008 |
20090263261 | DEVICE FOR RETURNING OIL SEPARATED FROM BLOW-BY GASES AND ACCUMULATED IN AN ACCUMULATION CHAMBER - The invention relates to a device for returning oil separated from blow-by gases and accumulated in an accumulation chamber ( | 10-22-2009 |
20100050962 | Flexible tongue valve for an oil separation device in the crankcase ventilation of a motor vehicle - A flexible tongue valve for an oil separation device in the crankcase ventilation of a motor vehicle includes a flexible tongue which on one end is suspended in a cantilevered manner and on the opposite end interacts with a valve seat. The flexible tongue comprises a bistable portion with a first stable position and a second stable position, wherein the bistable portion consists of a bimetal and is adapted to automatically abruptly switch between the first stable position and the second stable position depending on temperature. | 03-04-2010 |
20120006306 | Housing for an Internal Combustion Engine with a PCV Valve for Crankcase Ventilation, and a Method for Attaching a PCV Valve to a Housing - A housing for an internal combustion engine with a PCV valve for crankcase ventilation, including a valve housing and a valve insert, wherein the valve housing comprises a pressure-side opening which is connected to a pressure space carrying blow-by gases and a suction-side opening which is connected to a suction space, wherein the valve insert includes a valve body displaceably guided in the valve housing and a spring, wherein in an pressure-less state the valve body is pre-loaded towards, and rests on, a valve seat, wherein the valve body, exclusively controlled by a defined positive pressure in the pressure space relative to the suction space, is automatically displaceable to an open position against the force of the spring in order to provide a ventilation opening for blow-by gases between the pressure space and the suction space, wherein the valve housing includes two separate valve housing parts, wherein the valve seat is integrated into a first valve housing part and the first valve housing part is integrated into the housing forming a single piece, and a second valve housing part can be connected to the first valve housing part with the valve insert inserted in between to form a complete valve, and wherein the pressure-side opening is provided in the first valve housing part and the suction-side opening is provided in the second valve housing part. | 01-12-2012 |
Patent application number | Description | Published |
20090026181 | RADIO FREQUENCY POWER SUPPLY - A plasma supply device includes a full bridge circuit that is connected to a DC power supply and that has two half bridges each with two series connected switching elements. The plasma supply device further includes a primary winding of a power transformer connected to centers of the half bridges between the switching elements. The primary winding includes a tapping connectable to an alternating current center between the potentials of the DC power supply. | 01-29-2009 |
20090026964 | High Frequency Power Supply - For determining a wave running time between a RF source in a plasma power supply device and a load connected to the plasma power supply device, an RF pulse is transmitted forwards from the RF source to the load. The pulses are reflected by the load and transmitted backwards to the power source. A return time measured on arrival of the pulse(s) at the inverter is used to determine a wave running time. | 01-29-2009 |
20090026968 | PLASMA SUPPLY DEVICE - A plasma supply device generates an output power greater than 500 W at an essentially constant basic frequency greater than 3 MHz and powers a plasma process to which is supplied the generated output power, and from which reflected power is returned to the plasma supply device. The plasma supply device includes at least one inverter connected to a DC power supply, which inverter has at least one switching element, and an output network. The output network is arranged on a printed circuit board. The output network can therefore be designed low priced and accurately. | 01-29-2009 |
20100171428 | DRIVING SWITCHES OF A PLASMA LOAD POWER SUUPLY - Operation of a plasma supply device having at least one switching bridge with at least two switching elements, and configured to deliver a high frequency output signal having a power of >500 W and a substantially constant fundamental frequency>3 MHz to a plasma load is accomplished by determining at least one operating parameter, at least one environmental parameter of at least one switching element and/or a switching bridge parameter, determining individual drive signals for the switching elements taking into account the at least one operating parameter, the at least one environmental parameter and/or the switching bridge parameter, and individually driving the switching elements with a respective drive signal. | 07-08-2010 |
Patent application number | Description | Published |
20080245502 | Heat Exchanger - The invention relates to a heat exchanger ( | 10-09-2008 |
20090090497 | FIN FOR A HEAT EXCHANGER AND MANUFACTURING METHOD - The invention relates to a fin for a heat exchanger, comprising a fin element which extends in the flow direction of a first fluid and has a wall face around which the first fluid flows on both sides, wherein at least one flap is provided in the wall face, which flap forms a cutout, through which the first fluid can flow, in the wall face,
| 04-09-2009 |
20100132346 | Exhaust-gas cooler for an internal combustion engine - An exhaust-gas cooler for an internal combustion engine has a plurality of flow channels which conduct exhaust gas. The flow channels are arranged within a housing ( | 06-03-2010 |
20100193172 | FIN FOR A HEAT EXCHANGER - A fin for a heat exchanger is provided that includes a fin element which extends in a flow direction of a first fluid and has a wall face around which the first fluid flows on both sides, wherein at least one flap is provided in the wall face, which flap forms a cutout, through which the first fluid can flow, in the wall face, wherein a first straight edge of the flap extends substantially perpendicularly to the flow direction and is arranged at a distance from the wall face in order to form the cutout, wherein the flap has an inclined, smooth tab face which terminates at the first straight edge, and wherein the tab face is connected to the wall face via two side walls of the tab, which side walls have a curved profile mirror-symmetrically with respect to each other and, starting from the first edge, have a height which decreases in a manner corresponding to the inclination of the tab face. | 08-05-2010 |
20120305220 | EXHAUST GAS HEAT EXCHANGER - An exhaust gas heat exchanger, in particular for a motor vehicle, is provided that includes at least one diffuser for feeding and/or discharging an exhaust gas flow; an exchanging region comprising exchanging tubes which extend in an axial direction and which are connected to a base at one end; a housing through which a cooling agent can flow and which is made of a material that is non-resistant to high temperatures, in particular plastic or aluminum. The aim of the invention is to provide an exhaust gas heat exchanger that is simply constructed and inexpensive to produce. This is achieved in that a connecting element is partly embedded in the housing in order to secure the connecting element to the housing, the connecting element being bonded to the base in a first bonding region, said base being bonded to the diffuser in a second bonding region. | 12-06-2012 |