Title:
SADDLE-TYPE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/217661
Kind Code:
A1
Abstract:
A saddle-type vehicle is provided which enables having more catalyst and which can suppress large displacement of the exhaust device from with respect to the vehicle body frame and the engine main body. Multiple catalysts are arranged in a corner segment. The volume of a second catalyst is at least half of the volume of a first catalyst. The maximum value of the exhaust pipe inner surface area between the upstream end of the exhaust pipe and the upstream end of the first catalyst is greater than or equal to the maximum value of the exhaust pipe inner surface area between the upstream end of the first catalyst and the downstream end of the first catalyst. The maximum value of the exhaust pipe inner surface area between the downstream end of the first catalyst and the upstream end of the second catalyst is greater than or equal to the maximum value of the exhaust pipe inner surface area between the upstream end of the second catalyst and the downstream end of the second catalyst.
Inventors:
MAKITA NAOKI (JP)
SATO HAYATOSHI (JP)
TORIGOSHI MASAKI (JP)
KUROIWA MAKOTO (JP)
SATO HAYATOSHI (JP)
TORIGOSHI MASAKI (JP)
KUROIWA MAKOTO (JP)
Application Number:
PCT/JP2020/006026
Publication Date:
October 29, 2020
Filing Date:
February 17, 2020
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
International Classes:
B62K11/04; B62M7/02; F02B37/00
Domestic Patent References:
| WO2017217449A1 | 2017-12-21 | |||
| WO2016098906A1 | 2016-06-23 | |||
| WO2017217449A1 | 2017-12-21 |
Foreign References:
| JP2008045515A | 2008-02-28 | |||
| JP2008064068A | 2008-03-21 |
Other References:
See also references of EP 3950477A4
Attorney, Agent or Firm:
TASS MEISTER PATENT FIRM (JP)
Download PDF: