Structure for arranging NOx-reducing apparatus of construction machine

Structure for arranging NOx-reducing apparatus of construction machine

  • CN 101,952,133 A
  • Filed: 02/04/2009
  • Published: 01/19/2011
  • Est. Priority Date: 02/07/2008
  • Status: Active Grant
First Claim
Patent Images

1. the NOx of a construction machinery and equipment reduces the configuration structure of device, be provided on the construction machinery and equipment, this project machinery has engine room and is arranged on the rear position of vehicle body in abutting connection with ground with this driving engine and keeps the counterweight of the stability of vehicle body, the Hydraulic Pump that has disposed driving engine and utilized this driving engine to drive at above-mentioned engine room;

  • The configuration structure that the NOx of construction machinery and equipment reduces device comprises;

    be configured on the exhaust passage of above-mentioned driving engine, capture in the PM catcher/filter of particles floating shape material contained in the waste gas of above-mentioned driving engine and the waste gas to above-mentioned driving engine contained oxides of nitrogen and reduce the reducing catalyst that purifies;

    The deoxidation compound spraying device that deoxidation compound is sprayed to the exhaust passage of above-mentioned driving engine;

    With the reducer feeding device of deoxidation compound to above-mentioned injection of reducing agent mist unit feeding;

    And the deoxidation compound hutch that stores the deoxidation compound that guides to this reducer feeding device;

    It is characterized in that,On above-mentioned counterweight, form recess, the above-mentioned reducing catalyst of configuration in this recess, the above-mentioned PM catcher/filter of configuration in above-mentioned engine room.

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