Abstract:
A valve comprises a flap, a tubular valve body defining an exhaust gas flow passage, and a device to guide the flap relative to the valve body to allow the flap to pivot relative to the valve body around a pivot axis between a closing position and a freed position of the exhaust gas flow passage. The flap has two large faces substantially parallel to one another and connected to one another by an edge of the flap. The guide device comprises a pin, a distal, end and a base. The valve also comprises a stabilizing member secured to the flap.
Abstract:
An exhaust gas purification member comprises an annular substrate centered on a central axis, a peripheral electrode alongside and against an outer cylindrical face of the substrate, and a central electrode alongside and against an inner cylindrical face of the substrate. The substrate is made up of an electrically conductive material and includes a plurality of intersecting walls defining longitudinal cells therebetween and that each emerge in an upstream face and in a downstream face of the substrate. These intersecting walls are covered with a catalytic composition and each wall extends from an outer cylindrical wall of the substrate, defining the outer cylindrical face, to the inner cylindrical wall of the substrate, defining the inner cylindrical face.
Abstract:
A pre-impregnated part includes a main layer and a reinforcing layer. The main layer is made from a first composite material including a first matrix made from thermoplastic material, and first reinforcing fibers embedded in the first matrix. The reinforcing layer is made from a second composite material including a second matrix made from thermoplastic material, and second reinforcing fibers embedded in the second matrix. The pre-impregnated part has a flattened shape of at least a portion of a finished part to be manufactured from said pre-impregnated part, and a surface of the main layer is smaller than a developed surface of the finished part to be manufactured.
Abstract:
The device includes an upstream pipe, extending along a first direction, and in which at least one purification member is housed, a first downstream pipe, extending along a second direction, and in which at least one heat exchanger is housed, and a second downstream pipe configured to be connected to an exhaust gas outlet tube. The device also includes an intermediate chamber comprising an exhaust gas inlet communicating with the upstream pipe, downstream from the at least one purification member, a first exhaust gas outlet communicating with the first downstream pipe, and a second exhaust gas outlet communicating with the second downstream pipe. The first direction and the second direction form an angle between them comprised between 0° and 90°.
Abstract:
An exhaust line element comprises a valve body, a shutter, a pivot link connecting the shutter to the valve body, an upstream tube, and a downstream tube. At least one first stopper is attached on an inner surface of the valve body. The shutter abuts against the first stopper in the closing off position. The first stopper defines a longitudinal position of at least one of the upstream tube and the downstream tube relative to the valve body.
Abstract:
A heat recovery device extends between an inlet and an outlet for exhaust gas, and includes a valve delimiting a direct passage for gas between the inlet and the outlet. The valve comprises a valve body housing a gate movable between a closing off position and a released position. A heat exchanger has an exchanger inlet upstream of the gate and an exchanger outlet downstream of the gate. The valve comprises a tube partially extending inside the valve body up to a mouth edge at a distal end, with the mouth edge extending in a plane. The gate has a plane contact surface configured to come in a direct contact with the mouth edge when the gate is in the closing off position.
Abstract:
A spiral exchanger has a winding axis and comprises an outer sheet and an inner sheet secured to one another in a fastening plane before winding and delimiting a space for a fluid between them. The outer sheet and the inner sheet are wound on themselves and each comprises a plurality of flexible areas and a plurality of rigid areas, the flexible areas being more flexible than the rigid areas during folding. The flexible areas and the rigid areas are extended along the winding axis, and at least one flexible area of the outer sheet and at least one flexible area of the inner sheet that delimit the space between them form a pair of flexible areas that are aligned in a same radial direction.
Abstract:
An assembly provides a proportioned gas flow and includes a device that provides a pressurized flow of said gas, a release unit that releases the proportioned gas flow, and a chamber having an inlet fluidically connected to the device and an outlet fluidically connected to the release unit. The assembly further includes an admission valve inserted between the inlet of the chamber and the device, a metering valve inserted between the outlet of the chamber and the release unit, and a computer programmed to control the admission valve and the metering valve to provide a proportioned gas flow to the release unit. The assembly further comprises a calibrated orifice inserted between the outlet of the chamber and the release unit.
Abstract:
A device for storing and supplying ammonia to an exhaust line of an automobile vehicle, includes a solid material provided for absorbing the ammonia, a reservoir for storing the solid material, and a heating unit to heat the solid material to desorb the ammonia. The solid material comprises solid elements with a mass of less than 50 grams. The heating unit is insulated from the reservoir. The device also includes a first assembly for transferring solid elements from the reservoir to the heating unit.
Abstract:
An ammonia generating device is delimited by an outer casing that includes a main reservoir and a secondary reservoir. The main reservoir is capable of reloading with ammonia the body in the secondary reservoir. A heater is capable of heating the bodies in each reservoir. A connector connects the main reservoir to the secondary reservoir. The heater comprises first and second heating devices respectively installed inside the main reservoir and the secondary reservoir and operating independently. The main reservoir is thermally decoupled from the secondary reservoir to generate a temperature gradient between both reservoirs.