Aerosol deposition apparatus, method, and filter body with deposits

An apparatus configured to apply inorganic particles to a plugged honeycomb body comprising porous walls, an inlet end and an outlet end, the apparatus comprising:

• a duct spanning from a first end to a second end;
• a deposition zone configured to house the plugged honeycomb body and in fluid communication with the second end of the duct;
• an inlet conduit in fluid communication with the duct, the inlet conduit upstream from the deposition zone;
• an inorganic particle source in fluid communication with the inlet conduit and configured to supply inorganic particles to the inlet conduit;
• a delivery conduit configured to receive the inorganic particles from the inorganic particle source;
• a drying apparatus positioned upstream from the delivery conduit and configured to dry the inorganic particles;
• an aerosol generator comprising a Venturi tube comprising a first end and a second end in fluid communication with the inlet conduit, the aerosol generator configured to deliver an aerosol comprising the inorganic particles and air to the deposition zone;
• and
• a flow generator in fluid communication with the duct and the deposition zone, the flow generator configured to establish a flow of a gas and the inorganic particles introduced into the duct.