Abstract: A vaporizer for an exhaust system of an internal combustion engine has a vaporizer tube and a holding sleeve in which the vaporizer tube is inserted. A clamping sleeve sits on the vaporizer tube. The vaporizer tube includes two circumferentially surrounding clamping surfaces which protrude in a radial direction and cooperate with the holding sleeve and the clamping sleeve such that the clamping surfaces are clamped between the holding sleeve and the clamping sleeve by an axial clamping force to be gastight. At least one of the holding sleeve and the clamping sleeve includes a surrounding sealing edge which rests against the respective clamping surface via a line contact and forms an annular sealing seat. The vaporizer further includes a device preventing relative rotation between the holding sleeve and the vaporizer tube. A heater of the vaporizer is attached to the vaporizer tube using a resistance welding method.

Abstract: An exhaust gas treatment device has a housing and a hollow body through which exhaust gas flows and which is accommodated in the housing. The hollow body consists at least partly of a gas permeable substrate. The hollow body is connected at least one end to a wall member arranged in the housing and formed to be flexible in the axial direction.

Abstract: A vaporizer for an exhaust system of an internal combustion engine has a vaporizer tube and a holding sleeve in which the vaporizer tube is inserted. A clamping sleeve sits on the vaporizer tube. The vaporizer tube includes two circumferentially surrounding clamping surfaces which protrude in a radial direction and cooperate with the holding sleeve and the clamping sleeve such that the clamping surfaces are clamped between the holding sleeve and the clamping sleeve by an axial clamping force to be gastight. At least one of the holding sleeve and the clamping sleeve includes a surrounding sealing edge which rests against the respective clamping surface via a line contact and forms an annular sealing seat. The vaporizer further includes a device preventing relative rotation between the holding sleeve and the vaporizer tube. A heater of the vaporizer is attached to the vaporizer tube using a resistance welding method.

Abstract: An exhaust gas treatment device has a housing and a hollow body through which exhaust gas flows and which is accommodated in the housing. The hollow body consists at least partly of a gas permeable substrate. The hollow body is connected at least one end to a wall member arranged in the housing and formed to be flexible in the axial direction.

Abstract: An exhaust system, in particular for a vehicle with a diesel engine, has a first insert through which exhaust gas flows, a second insert through which exhaust gas flows and which is arranged downstream of the first insert in the flow direction, and an injection device arranged between the first and second inserts for injecting a fluid. A swirling element is provided in the flow path of the exhaust gas downstream of the first insert in the flow direction.

Abstract: In a device for cleaning vehicular exhaust gas, in particular a diesel exhaust particle filter, the individual bodies which together constitute a one-piece filter body, are arranged so as to have an oblique angle with an axis of symmetry of the filter body and/or with the horizontal plane, here in relation to the installation condition of the device in the vehicle and/or an underside of the filter body having a reduced curvature compared to portions of the outer contour adjoining the underside.

Abstract: A device for cleaning vehicular exhaust gas, in particular a diesel exhaust particle filter, comprises a filter body which has gas flowing through it, is composed of cuboid individual bodies and has been machined on the circumferential surface. Ring segment type clamping members made of warp-knitted or woven filaments rest against the end face of those individual bodies which have undergone more machining than other individual bodies situated on the outer circumference of the filter body.

Abstract: In a device for cleaning vehicular exhaust gas, in particular a diesel exhaust particle filter, the individual bodies which together constitute a one-piece filter body, are arranged so as to have an oblique angle with an axis of symmetry of the filter body and/or with the horizontal plane, here in relation to the installation condition of the device in the vehicle and/or an underside of the filter body having a reduced curvature compared to portions of the outer contour adjoining the underside.

Abstract: A device for cleaning vehicular exhaust gas, in particular a diesel exhaust particle filter, comprises a filter body which has gas flowing through it, is composed of cuboid individual bodies and has been machined on the circumferential surface. Ring segment type clamping members made of warp-knitted or woven filaments rest against the end face of those individual bodies which have undergone more machining than other individual bodies situated on the outer circumference of the filter body.

Abstract: A device for cleaning vehicle exhaust gas, especially a filter for diesel exhaust particulates or a catalytic converter, comprises a filter body including a plurality of individual cuboid bodies through which gas flows. The filter body has, at least in sections, an angular outer contour, as seen in a main direction of flow. The filter body also has an unmachined outer surface at the angular outer contour.

Abstract: The invention relates to bearing support of a throttle valve shaft in the housing of an exhaust gas line in which the shaft is rotatably supported on both sides in a bearing sleeve element constructed cup-shaped. The cups themselves are retained by spring force against the housing extending correspondingly conically within these areas. In order to keep small the actuating forces necessary for the rotation of the throttle valve shaft, each bearing sleeve element is retained by itself against the housing by means of a spring supported at the housing and the securing of the shaft against any axial displacement takes place by a separate axial bearing.

Abstract: A self-optimizing control method for optimizing the fuel/air ratio under non-steady conditions in an internal combustion engine is described; in this method, a probe is provided both before and after the catalyst. Control quantities and the time during which the post catalyst probe shows an undesirable fuel/air ratio are stored for certain specified engine-operating conditions in the non-steady range. When the same engine operating condition is repeated, reference is made to the stored control quantities and time and the control quantity is varied in the direction of the correct fuel/air ratio. The time now obtained is compared with the stored time and, if the time has decreased, the new control quantity and the new time are stored. The control values are iteratively corrected by repeating these procedures, when the same engine operating condition reappears, until the time reaches a minimum.

Abstract: A fuel-injected internal combustion engine wherein fuel is injected in dependence upon a quantity or volume of air supplied to the engine. A throttle valve controls the airflow rate with an O.sub.2 probe, arranged in an exhaust manifold, controlling a timing valve through a control device for enabling a timed relief of injection pressure of the fuel. An ignition starter switch is connected to the control device in such a manner that the timing valve is fully open during an operation of the ignition starter switch so as to enable a starting boost. An adjustable timing member is coupled to an operating switch provided in the control device, which operating switch closes automatically after a termination of the starting process. The timing member maintains the timing valve in a fully open position during a specific time span so as to provide for an after-start boost.