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Patent Searching and Data


Title:
EXHAUST SYSTEM
Document Type and Number:
Japanese Patent JP2007298037
Kind Code:
A
Abstract:

To provide an exhaust system equipped with a tail pipe for minimizing the space between the periphery of the tail pipe and an opening of a vehicle rear part while sufficiently considering the effect of heat during traveling.

In this exhaust system equipped with an exhaust pipe 1 and the tail pipe 2 connected to the exhaust pipe 1 and provided in a protruding condition in the opening 3 in the vehicle rear part 4, the tail pipe 2 is constituted by a first part A2 and a second part A3, a diameter D of the first part A2 is made smaller than a diameter D1 of the second part A3 and formed into a trumpet shape, the second part A2 is set at a position apart by a predetermined space S1 from the opening 3 at the periphery of the exhaust system in a condition I before warm-up, and the predetermined space S1 is set smaller than a space S2 between the thermally expanded tail pipe 2 and the opening 3 after a condition II after completion of warm-up of the exhaust system.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
FRIZ ANDREAS
Application Number:
JP2007117024A
Publication Date:
November 15, 2007
Filing Date:
April 26, 2007
Export Citation:
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Assignee:
PORSCHE AG
International Classes:
F01N13/08; B60K13/04; F01N13/20
Domestic Patent References:
JP2004308551A2004-11-04
JPH0396434A1991-04-22
JPS6441617A1989-02-13
JPH01127925A1989-05-19
JP2005155440A2005-06-16
JPH07102967A1995-04-18
Attorney, Agent or Firm:
Mitsufumi Esaki
Okumura Yoshimichi
Blacksmith