Catalyst unit
AssigneeHyundai Motor Company
InventorSungmu CHOI
Life of this patent
Estimating the term…
Abstract
A catalyst unit may include a first brick having a first noble metal layer formed along an exhaust gas passage thereof and being disposed on a space that an exhaust gas flow rate may be a predetermined rate, a second brick being disposed onto the first brick and having a second noble metal layer formed along an exhaust gas passage thereof, wherein the second brick may be disposed on a space that an exhaust gas flow rate may be lower than the predetermined rate, and wherein the first brick and the second brick may be attached together to fix the second brick onto the first brick.
Claims7
1-11. (canceled)
A manufacturing method of a catalyst unit, comprising:
- extruding a first brick that exhaust gas holes are formed therein;
- extruding a second brick that exhaust gas holes are formed therein;
- forming a first noble metal layer in the first brick;
- forming a second noble metal layer in the second brick;
- and
- attaching the first brick on the second brick.
Dependencies are inferred from the claim text.