Throttle Plate on Diesel Engines?
Throttle Plate on Diesel Engines?
(OP)
Hi All,
i heard that Throttle plates are used in Diesel Engines recently for controlling Air for meeting the emissions norms Euro 5 or so (in CRDI systems). But is it that the Efficiency of the Diesel Engine will drop bcos of the this of Throttle plate? If at all the throttle plate is used, will it be used to control the entire quantity of the air ( as it is done for the SI engine) or is it handled in a different way?
Thanks,
Santhosh T Arasan
i heard that Throttle plates are used in Diesel Engines recently for controlling Air for meeting the emissions norms Euro 5 or so (in CRDI systems). But is it that the Efficiency of the Diesel Engine will drop bcos of the this of Throttle plate? If at all the throttle plate is used, will it be used to control the entire quantity of the air ( as it is done for the SI engine) or is it handled in a different way?
Thanks,
Santhosh T Arasan





RE: Throttle Plate on Diesel Engines?
Bill
RE: Throttle Plate on Diesel Engines?
Mike Halloran
Pembroke Pines, FL, USA
RE: Throttle Plate on Diesel Engines?
RE: Throttle Plate on Diesel Engines?
Everything 'modern' certainly uses unthrottled inlet air.
The systems I have had some slight association with recently use what look like throttle plates to ensure that exhaust has and crank case gasses are preferentially consumed under certain parts of the speed-load map of the engine.
The 'throttle' position is controlled by the engine control module.
The 'throttle' is rarely, if ever, closed.
These are also turbocharged engines, without exception.
Bill
RE: Throttle Plate on Diesel Engines?