摘要:
An intake manifold (16) of an internal combustion engine (10) is charged to superatmospheric pressure by operating a first compressor (44) to compress fresh air diluted by exhaust gas into the intake manifold while operating a second compressor (24C) to compress undiluted fresh air into the intake manifold through a device (40) that allows flow in a direction from the second compressor into the intake manifold but not in an opposite direction.
摘要:
An apparatus includes an inlet (121) at a first end of a pipe (115), wherein a flow of fluid enters the inlet (121). A first outlet (123) is at a second end of the pipe (115). A second outlet (125) is disposed between the first end and the second end of the pipe (115). A flow deflector (201) deflects a first part of the flow out of the second outlet (125). A second part of the flow exits the first outlet (123).
摘要:
A system and method of creating sub-atmospheric and super-atmospheric pressure in an intake manifold (20) of an internal combustion engine (10) that has cylinders (14) within which fuel combusts with air that has entered the cylinders via the intake manifold. A positive displacement airflow control device (26) is disposed upstream of the intake manifold. Sub-atmospheric pressure in the intake manifold is created by applying negative external torque to a shaft (28) of the positive displacement airflow control device and super-atmospheric pressure is created by applying positive external torque to the shaft (28).
摘要:
A strategy for late post-injection fueling in a diesel engine (10) that can mitigate scuffing and wear due to cylinder wall washing by late post-injected fuel that is needed for regenerating an exhaust after-treatment device (38).
摘要:
A three-way throttle valve for an air intake system of an engine comprises an elongate-shaped valve plate, a positioning shaft, and an actuator. The elongate-shaped valve plate is disposed within an intake air portion of an air intake system. The elongate-shaped valve plate has a major axis and a minor axis. The positioning shaft connects to the elongate-shaped valve plate. The positioning shaft is disposed about the minor axis of the elongate-shaped valve plate. The actuator connects to the positioning shaft. The actuator has at least a first position setting, a second position setting, and a third position setting. At least a portion of the elongate-shaped valve plate contacts a portion of the intake air portion of the air intake system when the actuator is disposed in the first position setting.
摘要:
An apparatus includes an inlet (121) at a first end of a pipe (115), wherein a flow of fluid enters the inlet (121). A first outlet (123) is at a second end of the pipe (115). A second outlet (125) is disposed between the first end and the second end of the pipe (115). A flow deflector (201) deflects a first part of the flow out of the second outlet (125). A second part of the flow exits the first outlet (123).
摘要:
A method of shutting down an engine determines whether an ignition key is in a first shutdown position. An exhaust gas recirculation valve closes when the ignition key is in the first shutdown position. The engine runs for a predetermined period of time after the exhaust gas recirculation valve is closed. The engine shuts down after running the engine for the predetermined period of time.
摘要:
An engine system (100) includes an internal combustion engine (101) connected to an exhaust system (102). A portion (103) of the exhaust system (102) is connected to the internal combustion engine (101), and an additional portion (111) of the exhaust system (102) is connected to a vehicle and includes a tailpipe (123). An after-treatment system (105, 109) is connected to the engine (100) located between the internal combustion engine (101) and the tailpipe (111). A mixer (200) is located between a first segment of the tailpipe (202) and a second segment of the tailpipe (204). The mixer (200) is arranged to mix a flow of exhaust gas (214) from the first segment of the tailpipe (202) with a flow or air (218) to yield a mixture, and to route the mixture into the second segment of the tailpipe (204).