Title:
EXHAUST MANIFOLD FOR PREVENTING CONDENSATE AND GAS LEAKAGE IN ENGINE
Document Type and Number:
WIPO Patent Application WO/2012/086925
Kind Code:
A2
Abstract:
Disclosed is an exhaust manifold for preventing condensate and gas leakage in an engine. The exhaust manifold for preventing condensate and gas leakage comprises a main tube (2) on one side having a connection portion (5), which is provided with sealing grooves (5a) that are formed on at least one place along the circumference of the outer circumference portion, and a main tube (2) on the other side having a corresponding connection portion (5A) for accommodating the connection portion (5) of the main tube (2) on the one side, wherein at least one sealing (6) for preventing condensate and/or exhaust gas leakage is inserted into each of the sealing grooves (5a) on the connection portion (5) of the main tube (2) on the one side, and a swirl groove (11) is formed in the outer radial direction on the inner circumference of the corresponding connection portion (5A) of the main tube (2) on the other side, which comes into contact with the front portion of the connection portion (5) of the main tube (2) on the one side. The present invention guides the flow of high pressure exhaust gas from the outer side toward the center of the connection portion of the main tube on the one side, thereby effectively preventing the condensate that is generated inside the exhaust manifold and/or the exhaust gas inside the exhaust manifold from leaking to the outside through gaps in the connection portions.
Inventors:
CHA SOON CHANG (KR)
KIM KWANG SOO (KR)
KIM KWANG SOO (KR)
Application Number:
PCT/KR2011/008552
Publication Date:
June 28, 2012
Filing Date:
November 10, 2011
Export Citation:
Assignee:
DOOSAN INFRACORE CO LTD (KR)
CHA SOON CHANG (KR)
KIM KWANG SOO (KR)
CHA SOON CHANG (KR)
KIM KWANG SOO (KR)
International Classes:
F01N13/08; F01N13/10
Foreign References:
| KR20090037149A | 2009-04-15 | |||
| KR20090064173A | 2009-06-18 | |||
| JPH057923U | 1993-02-02 | |||
| KR19980026314U | 1998-08-05 |
Attorney, Agent or Firm:
KIM, Kee-Hyo (KR)
김기효 (KR)
김기효 (KR)
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Claims: