| 摘要 |
The system has an exhaust return pipe (14) with Venturi device (V) and main air branch (21) bypassing the unit. Venturi device, main air branch, and a control unit (22) are located in a common housing (25) with a mainly rectangular profile. The Venturi device has a nozzle diffusor unit (20) formed by deformation of at least one housing side wall. The housing has two longitudinal chambers (27,28), the first chamber contains the Venturi device, the second chamber forms the main air branch and contains the control unit. |
