Title:
【発明の名称】ガスフィルタ
Document Type and Number:
Japanese Patent JPH08501983
Kind Code:
A
Abstract:
A vehicle exhaust filter comprises a cylindrical housing (4, 5, 6) with inlet and outlet spigots (7 and 8) enabling it to be included in a vehicle's exhaust duct. Partition walls (13, 14, 15, 16) within the housing support four porous ceramic cylindrical filter elements, namely two upstream elements (9, 10) and two downstream elements (11, 12). The partition walls are ported in a manner such that gas flowing from inlet spigot (7) to outlet spigot (8) must pass through the cylinder wall of one or other of the upstream elements (9, 10) and, thereafter through the cylinder wall of one or other of the downstream elements (11, 12). The upstream elements hold a quantity of adsorbed potassium aluminium sulphate to convert lead residues in the exhaust into lead sulphate and the downstream elements hold a quantity of adsorbed trisodium orthophosphate or other hygroscopic salt to maintain their surfaces moist and tacky.
Inventors:
Capas Sandra
Application Number:
JP50943794A
Publication Date:
March 05, 1996
Filing Date:
September 10, 1993
Export Citation:
Assignee:
Air Safe Exhaust Systems Pty Limited
International Classes:
B01D46/00; B01D46/24; B01D49/00; B01D53/28; F01N3/02; B01D53/34; B01D53/64; F01N3/022; F01N3/031; F01N3/021; F01N13/02; (IPC1-7): B01D49/00; B01D53/34; B01D53/64; F01N3/02
Attorney, Agent or Firm:
Hideyoshi Takara