| 摘要 |
<p>An intake air system for an internal combustion engine having an upright stack mounted on vehicle structure, as a hood, with a stack connecting assembly. An air precleaner is mounted on the upper end of the stack. The lower end of the stack is connected to tubular members which leads to the air cleaner of the engine. The precleaner has a cylindrical housing surrounding a separation chamber. A vane assembly has a plurality of circumferentially spaced vanes providing an inlet passage open to the chamber for directing the air and particles into the chamber in a circular motion. A sleeve is centrally attached to the vane assembly and has a central outlet passage for carrying cleaned air from the chamber. An impeller assembly is rotatably mounted in the chamber and has a plurality of rotors having paddies located in continuous relationship with respect to the walls of the chamber and a discharge opening in the housing. The impeller assembly can also have a propeller means located in the central outlet passage and rotatable in response to the passage of air through the central outlet passage. Rotation of the propeller helps sustain rotation of the rotor assembly wherein the paddles drive air carrying the entrained particles through the discharge opening.</p> |
