| Patent application number | Description | Published |
|---|
| 20080202735 | Heat Exchanger - The invention relates to a heat exchanger ( | 08-28-2008 |
| 20080223038 | Arrangement for Recirculating and Cooling Exhaust Gas of an Internal Combustion Engine - The invention relates to an arrangement for recirculating and cooling exhaust gas of an internal combustion engine ( | 09-18-2008 |
| 20080251242 | Heat Exchanger - The invention relates to a heat exchanger, especially for cooling exhaust gases. Said heat exchanger comprises at least one first flow channel ( | 10-16-2008 |
| 20080264609 | HEAT EXCHANGER FOR EXHAUST GAS COOLING; METHOD FOR OPERATING A HEAT EXCHANGER; SYSTEM WITH A HEAT EXCHANGER FOR EXHAUST GAS COOLING - A heat exchanger, in particular for cooling the exhaust of a motor vehicle internal combustion engine, is disclosed, the heat exchanger comprising a first partial heat exchanger with at least one first flow channel through which a medium to be cooled is to flow and at least one third flow channel through which a first coolant is to flow, at least one second partial heat exchanger with at least one second flow channel through which a medium to be cooled is to flow and at least one fourth flow channel through which a second coolant is to flow, wherein the at least one first flow channel and the at least one second flow channel are fluidly connected, and the at least one first flow channel and the at least one second flow channel have at least one first specific heat transfer surface and at least one second heat transfer surface, wherein second specific heat transfer surface area, divided by first specific heat transfer surface area, yields a quotient (ψ), the at least one first flow channel having a larger quotient (ψ) than second flow channel. | 10-30-2008 |
| 20090044789 | DEVICE FOR RECYCLING AND COOLING EXHAUST GAS FOR AN INTERNAL COMBUSTION ENGINE - A device for recycling and cooling exhaust gas of an internal combustion engine is disclosed, comprising a first exhaust-gas heat exchanger and a second exhaust-gas heat exchanger, wherein the first and second exhaust gas heat exchangers are combined in a structural unit and form a module. | 02-19-2009 |
| 20090090486 | HEAT EXCHANGER FOR A MOTOR VEHICLE - The invention relates to a heat exchanger for a motor vehicle, comprising a first flow path ( | 04-09-2009 |
| 20090090492 | VALVE DEVICE FOR CONTROLLING A RECYCLED, GASEOUS FLUID, HEAT EXCHANGER, METHOD FOR CONTROLLING A VALVE DEVICE AND/OR FOR CONTROLLING A HEAT EXCHANGER - A valve device for controlling a recycled, gaseous fluid and/or for heat exchanger/bypass control for a heat exchanger of an internal combustion engine of a motor vehicle, with at least one valve body, and with at least one valve housing for receiving at least part of the valve body. The valve housing has at least one inlet opening for the inflow of a gaseous fluid, at least one first outlet opening for supplying a heat exchanger with gaseous fluid, and at least one second outlet opening for causing the gaseous fluid to bypass the heat exchanger. The valve body has at least one first valve-body partial element which is in the manner of a hollow body and is intended for controlling the flow rate through at least one outlet opening, and at least one second valve-body partial element which is at least partially of conical design and is intended for controlling the flow rate through the inlet opening. | 04-09-2009 |
| 20090260586 | HEAT EXCHANGER FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a heat exchanger for cooling a fluid for an internal combustion engine, in particular, a gas, for example, in the form of a charge fluid such as exhaust gas, charge air, mixtures thereof or similar, in particular for an internal combustion engine on a motor vehicle, said exchanger preferably being a gas cooler, comprising an inner tubular piece ( | 10-22-2009 |
| 20100025023 | HEAT EXCHANGER, EXHAUST GAS RECIRCULATION SYSTEM, AND USE OF A HEAT EXCHANGER - A heat exchanger, particularly an exhaust gas heat exchanger, for transferring heat in two stages between a first fluid and a second and third fluid that have different temperatures is provided. The heat exchanger comprises a block for separately conducting the first as well as the second and third fluid in a heat transferring manner. The block encompasses a number of ducts through which the first fluid can flow, a first chamber of a high-temperature part, through which the second fluid can flow and which accommodates the ducts, a second chamber of a low-temperature part, through which the third fluid flows and which accommodates the ducts, and a housing in which the first and second chamber as well as the ducts are arranged. Thus, a two-stage heat exchanger is provided at a low cost and keeps leakage between the high-temperature part and the low-temperature part low. Whereby the first chamber and the second chamber are separated from one another by means of a separation area that is mounted in a groove. | 02-04-2010 |
| 20100071675 | FLOW CHANNEL, HEAT EXCHANGER, EXHAUST GAS RECIRCULATION SYSTEM, CHARGE AIR SUPPLY SYSTEM, USE OF A HEAT EXCHANGER - A flow channel for a heat exchanger for exchanging heat between a first fluid and a second fluid. The flow channel comprises a channel cover provided with a space surrounded by an inner side of the channel cover; a plurality of partitions that are arranged on the inner side of the channel cover in the space. The flow channel having, perpendicular to a flow channel axis, a cross-section that can be traversed and embodied for guiding the first fluid in the inner chamber. Thereby an improved transfer of heat is ensured with a more acceptable drop of pressure and a reduced risk of blocking. As a result, a hydraulic diameter in the region of between 1.5 mm and 6 mm, defined as the quadruple of the ratio between the surface of the cross-section that is traversed and the perimeter that can be moistened by the fluid. The invention also relates to a heat exchanger comprising a block having a plurality of flow channels of said type, through which the first fluid flows and fluidically connected by a fluid connection. The invention further relates to a charge-air system, an exhaust gas recycling system and to a use of the heat exchanger. | 03-25-2010 |
| 20100243220 | HEAT EXCHANGER - The invention relates to a heat exchanger, particularly for a motor vehicle, comprising at least one duct ( | 09-30-2010 |
| 20100276131 | HEAT EXCHANGER, PARTICULARLY FOR A MOTOR VEHICLE - The invention relates to a heat exchanger, particularly for a motor vehicle, comprising a plurality of exchanger tubes ( | 11-04-2010 |
| 20110000657 | EXTRUDED TUBE FOR A HEAT EXCHANGER - An extruded tube for a heat exchanger is provided that includes two at least approximately parallel outer side walls that extend in a longitudinal direction and a transverse direction of the extruded tube and that are connected by two outer narrow sides in a vertical direction of the extruded tube, wherein at least one continuous web extends between the side walls in the longitudinal direction and in the vertical direction and separates at least two ducts of the extruded tube, and wherein at least one of the outer side walls has embossings that serve to form both bulged portions that project into the ducts of the side walls and also bulged portions that extend substantially in the transverse direction of the web, wherein the bulged portions of the at least one web have a controlled orientation with respect to the transverse direction. | 01-06-2011 |
