US 9,810,180 B2
EGR cooling structure
Nobuyuki Yoshida, Saitama (JP); Hiroshi Takemoto, Saitama (JP); and Taichi Yoshikawa, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 13/880,600
Filed by Nobuyuki Yoshida, Saitama (JP); Hiroshi Takemoto, Saitama (JP); and Taichi Yoshikawa, Saitama (JP)
PCT Filed Oct. 12, 2011, PCT No. PCT/JP2011/073438
§ 371(c)(1), (2), (4) Date Apr. 19, 2013,
PCT Pub. No. WO2012/056885, PCT Pub. Date May 3, 2012.
Claims priority of application No. 2010-242654 (JP), filed on Oct. 28, 2010.
Prior Publication US 2013/0206120 A1, Aug. 15, 2013
Int. Cl. F02B 47/08 (2006.01); F02M 25/07 (2006.01); F02M 26/13 (2016.01); F02M 26/15 (2016.01); F02M 26/28 (2016.01)
CPC F02M 25/07 (2013.01) [F02M 26/13 (2016.02); F02M 26/15 (2016.02); F02M 26/28 (2016.02)] 6 Claims
OG exemplary drawing
 
1. An EGR cooling structure comprising;
a cylinder block having a plurality of cylinders;
an exhaust manifold portion in which exhaust gas exhausted from each of the plurality of cylinders is collected;
an exhaust emission control device for purifying the exhaust gas flowing from the exhaust manifold port;
an EGR pipe through which EGR gas of a part of the purified exhaust gas is introduced into an intake system, and
an EGR cooler attached between parts of the EGR pipe for cooling the EGR gas with a cooling liquid,
wherein an exhaust gas passage from each of the plurality of cylinders to the exhaust emission control device is curved downward toward the exhaust emission control device when the exhaust gas passage is viewed from a side of the exhaust gas passage and the EGR cooler is disposed in a space surrounded by the cylinder block, and the exhaust gas manifold portion and the exhaust emission control device and between the exhaust emission control device and the cylinder block so that the cylinder block, the EGR cooler and the exhaust emission control device are seen overlapped with one another when viewed from a side of the cylinder block on which the exhaust emission control device is disposed.