A method provides for manufacturing a flap carrier for an exhaust gas flap, especially for the exhaust gas stream of an internal combustion engine. The method includes providing a flap housing (50) and providing a stop ring (48). The stop ring (48) is inserted into the flap housing (50) in a position corresponding to an installed position. The stop ring (48) is fixed to the flap housing (50). Subsequently to fixing the stop ring (48) to the flap housing (50), at least one shaft opening (60, 62) for a pivot shaft carrying a flap diaphragm with at least one flap wing is inserted into the stop ring (48).

A valve device for a motor vehicle includes: a housing; a duct arranged in the housing; a flap arranged in the duct and configured to close the duct; a shaft mounted in the housing, upon which shaft the flap is attached; an electric motor configured to drive the shaft; and a stationary conducting element arranged in the duct downstream of the flap.

Various systems and methods are described for generating vacuum within an engine intake. A system may comprise a throttle body with a slideable throttle body and a throttle fixture with a hollow interior passage located therein.

This air intake apparatus for an internal combustion engine includes a throttle-side air intake pipe having one end connected to a throttle and another end connected to a surge tank, an external gas inlet provided in at least one of the throttle-side air intake pipe and the surge tank, introducing external gas into at least one of the throttle-side air intake pipe and the surge tank, and a gas distributivity improvement fin provided inside at least one of the throttle-side air intake pipe and the surge tank, which corresponds to the external gas inlet, diffusing the external gas to intake air from the throttle.

An improved throttle body structure is provided. The structure includes a throttle body. The throttle body is provided with a plurality of airflow channels running from top to bottom, each of the airflow channels is internally provided with a butterfly valve for controlling a ventilation volume, and the throttle body is internally provided with injectors whose quantity corresponds to a quantity of the airflow channels. Each of the airflow channels is further internally provided with a tubular atomizer mounted and fixed in a radial direction, the atomizer is in a shape of a blind tube with one opening end, a tube wall of the atomizer is provided with a plurality of atomizing holes, and the opening end of the atomizer is connected to the injectors. The tubular atomizer is used, and the opening end of the atomizer is directly connected to the injectors.