Title:
LIGHTWEIGHT POLYMERIC EXHAUST COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2012/149532
Kind Code:
A3
Abstract:
Disclosed is a muffler assembly (120) including: a) polymeric housing (7) having an interior surface and at least one opening for at least one inlet and one outlet exhaust pipe; b) at least one metal inlet exhaust pipe (8)and at least one metal outlet exhaust pipe (9) positioned within the openings to provide housing-exhaust pipe interfaces (6); c) a thermal insulating material (5) coating the interior surface of the polymeric housing (7) and extending through the housing- exhaust pipe interfaces (6); wherein the thermal insulating material (5) seals the muffler assembly (120) at the housing-exhaust pipe interfaces (6); and wherein the muffler assembly (120) has a leak rate of 105 liters/ minute or less at 4.5 psig pressure. Also disclosed is a process for manufacturing the muffler assembly.
Inventors:
JONES DANIEL P (US)
LEBOEUF PHILIPPE (FR)
MAURER KARL PAUL (US)
LEBOEUF PHILIPPE (FR)
MAURER KARL PAUL (US)
Application Number:
PCT/US2012/035800
Publication Date:
February 28, 2013
Filing Date:
April 30, 2012
Export Citation:
Assignee:
DU PONT (US)
JONES DANIEL P (US)
LEBOEUF PHILIPPE (FR)
MAURER KARL PAUL (US)
JONES DANIEL P (US)
LEBOEUF PHILIPPE (FR)
MAURER KARL PAUL (US)
International Classes:
F01N1/00; F01N1/08; F01N13/14; F01N13/16; F01N13/18
Foreign References:
| US5340952A | 1994-08-23 | |||
| US20050023076A1 | 2005-02-03 | |||
| US4880078A | 1989-11-14 |
Attorney, Agent or Firm:
SHANNON, Paul, J. (Legal Patent Records Center4417 Lancaster Pik, Wilmington DE, US)
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