Title:
COOLING STRUCTURE FOR INTERNAL COMBUSTION ENGINE FOR SADDLED VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/056118
Kind Code:
A1
Abstract:
This cooling structure for an internal combustion engine for a saddled vehicle is configured such that a crankshaft 31 aligned with the vehicle width direction is provided to a crankcase 30 of the internal combustion engine 3, a centrifugal cooling fan 7 is provided at an end of the crankshaft, a radiator 6 is provided facing the cooling fan 7, and a shroud 8 is provided surrounding the cooling fan 7. The shroud 8 has a first air-directing guide plate 101 and a second air-directing guide plate 102, which are formed such that the radial width thereof measured from the axis C of rotation of the cooling fan increases in the direction R of rotation of the cooling fan. Spaces 88, 89 formed by the first air-directing guide plate 101 and the second air-directing guide plate 102 are continuous, on the side on which the radial width is increased, with an air discharge opening 80 for discharging discharge air, and the spaces 88, 89 are arranged facing each other across the axis of rotation of the cooling fan. As a result, the size, in the radial width direction, of a swirl chamber inside the shroud can be restricted, and air discharge efficiency is increased while interference with a peripheral member is prevented.
Inventors:
MATSUSHITA KOICHIRO (JP)
FUJITA HISAYOSHI (JP)
TOMIOKA YUSUKE (JP)
FUJITA HISAYOSHI (JP)
TOMIOKA YUSUKE (JP)
Application Number:
PCT/JP2017/032876
Publication Date:
March 29, 2018
Filing Date:
September 12, 2017
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
F01P11/10
Foreign References:
| JP2007016727A | 2007-01-25 | |||
| JP2014105626A | 2014-06-09 | |||
| JP2008175086A | 2008-07-31 | |||
| JPH0988589A | 1997-03-31 |
Attorney, Agent or Firm:
KAMIZAWA, Junko et al. (JP)
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