Methods and systems are provided for a throttle plate and a vacuum consumption device. In one example, a method may include providing vacuum to a vacuum consumption device with a venturi passage inside a throttle.

Various systems and methods are described for generating vacuum within an engine intake. A system may comprise an intake throttle including a throttle plate, where the throttle plate may comprise a hollow interior passage, which in turn may be coupled to a vacuum consumption device. When vacuum is demanded by the vacuum consumption device, the throttle plate may be adjusted to increase airflow through the interior passage and vacuum may be generated at a constricted portion of the interior passage by flowing intake air through the interior passage of the throttle plate.

The present disclosure relates to an exhaust system for an internal combustion engine. The exhaust system comprises an exhaust conduit adapted to fluidly connect the internal combustion engine to a turbine of a turbo and a valve comprising a valve flap located in the exhaust conduit in a position between the internal combustion engine and the turbine. The valve flap is pivotally connected to at least a portion of the exhaust conduit. The exhaust system further comprises an actuator adapted to impart a load on at least a portion of the valve to thereby control a pivotal position of the valve flap in the exhaust conduit to thereby control a gas flow via the exhaust conduit and an actuator load sensor adapted to detect load information indicative of a magnitude of the load that the actuator currently imparts on at least the portion of the valve.

A fresh air system for supplying combustion chambers of an internal combustion engine with fresh air may include a housing, through which at least one fresh air path passes, and a flap mechanism, which includes at least one flap adjustably mounted on the housing. The flap may be rotatably adjustable between a closed position, in which the flap closes off the fresh air path in a fluid-tight manner and an opened position, in which the flap opens the fresh air path for fresh air to flow through. The flap mechanism may include a spring-elastic preload element, which supports itself on the housing and preloads the flap against at least one of the opened position and the closed position.

Various systems and methods are described for generating vacuum within an engine intake. A system may comprise an intake throttle including a throttle plate, where the throttle plate may comprise a hollow interior passage, which in turn may be coupled to a vacuum consumption device. When vacuum is demanded by the vacuum consumption device, the throttle plate may be adjusted to increase airflow through the interior passage and vacuum may be generated at a constricted portion of the interior passage by flowing intake air through the interior passage of the throttle plate.

A flapper exhaust diverter valve (110) is provided. The flapper exhaust diverter valve (110) includes a valve body (210) comprising an exhaust inlet (212), an evaporator outlet (214), and a bypass outlet (216). The flapper exhaust diverter valve (110) also includes a flapper assembly (310) that is rotatably coupled to the valve body (210) at a first distal end (310a) of the flapper assembly (310).

The present disclosure relates to an exhaust system for an internal combustion engine. The exhaust system comprises an exhaust conduit adapted to fluidly connect the internal combustion engine to a turbine of a turbo and a valve comprising a valve flap located in the exhaust conduit in a position between the internal combustion engine and the turbine. The valve flap is pivotally connected to at least a portion of the exhaust conduit. The exhaust system further comprises an actuator adapted to impart a load on at least a portion of the valve to thereby control a pivotal position of the valve flap in the exhaust conduit to thereby control a gas flow via the exhaust conduit and an actuator load sensor adapted to detect load information indicative of a magnitude of the load that the actuator currently imparts on at least the portion of the valve.

A throttle device includes a coil spring that has a first spring part, a second spring part, and an intermediate hook connecting the first spring part to the second spring part for biasing a throttle valve. The first spring part is engaged with a rotation member coupled to a throttle shaft. The second spring part is engaged with a throttle body. The intermediate hook is configured to engage with a first stopper formed on the rotation member and a second stopper formed on the throttle body. The intermediate hook includes a first part on the first spring part side and a second part on the second spring part side. When the intermediate hook is engaged with the first stopper or the second stopper, the first part abuts on the first stopper or the second stopper.

A gas fuel flow control mechanism of an electronic control system includes a body, where a fuel gas inlet, an air inlet and a gas mixture outlet are provided on the body, the fuel gas inlet and air inlet are communicated with the gas mixture outlet through a main channel, a throttle with controllable opening is provided in the main channel near the gas mixture outlet, a valve plate with controllable opening is provided in the fuel gas inlet, the valve plate is rotatably connected with the body through a rotating shaft, and both ends of the rotating shaft are respectively provided with a motor and an angle sensor, a shaft sleeve in fit with the rotating shaft is provided in the angle sensor, the shaft sleeve has a shaft hole into which the rotating shaft is inserted and mounted.