Title:
INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2014/103585
Kind Code:
A1
Abstract:
An internal combustion engine (EG) provided with, for one combustion chamber (123), at least one cylinder (21-24) having a plurality of exhaust ports (30) and a cylinder head (134) in which a water jacket (132) is formed, the plurality of exhaust ports gathering at an exhaust gathering part (31-35) in the cylinder head, wherein at least one exhaust port (30A) among the plurality of exhaust ports has a curved shape in an exhaust passage leading from an exhaust opening facing the combustion chamber to the exhaust gathering part, and has a curvature set larger than the curvature of another exhaust port (30B), and the cooling capacity of the water jacket (132a-132d) for the exhaust port (30A) having the larger curvature is set higher than the cooling capacity of the water jacket for the other exhaust port (30B).
Inventors:
HAMAMOTO TAKAYUKI (JP)
ITO TAKAO (JP)
ITO TAKAO (JP)
Application Number:
PCT/JP2013/081507
Publication Date:
July 03, 2014
Filing Date:
November 22, 2013
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
F02F1/36; F01P3/02; F02F1/00; F02F1/14; F02F1/42; F02M25/07
Foreign References:
| JPH11264319A | 1999-09-28 | |||
| JP2009079552A | 2009-04-16 | |||
| JP2007032402A | 2007-02-08 | |||
| JP2007138904A | 2007-06-07 | |||
| JP2006161666A | 2006-06-22 | |||
| JPH01182560A | 1989-07-20 | |||
| JPH03271550A | 1991-12-03 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
It can exceed and is a patent business corporation. (JP)
It can exceed and is a patent business corporation. (JP)
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