US 12,434,787 B2
Hybrid power unit, hybrid straddle vehicle, and case of hybrid power unit
Masaki Nishiyabu, Akashi (JP); Yuji Hida, Akashi (JP); and Tetsuji Yamamoto, Akashi (JP)
Assigned to KAWASAKI MOTORS, LTD., Akashi (JP)
Filed by KAWASAKI MOTORS, LTD., Akashi (JP)
Filed on Aug. 25, 2022, as Appl. No. 17/822,267.
Claims priority of application No. 2021-142678 (JP), filed on Sep. 1, 2021.
Prior Publication US 2023/0063044 A1, Mar. 2, 2023
Int. Cl. B62M 7/02 (2006.01); B62M 23/02 (2010.01)
CPC B62M 7/02 (2013.01) [B62M 23/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hybrid power unit comprising:
an internal combustion engine including a crank shaft and a crank case that houses the crank shaft and includes a through hole;
a power transmitting shaft to which power from the crank shaft is transmitted and which is housed in the crank case;
an electric motor including a motor housing and a motor driving shaft projecting from the motor housing toward a lateral side, the electric motor being located on an outer surface of the crank case;
a linkage which extends through the through hole and through which power from the motor driving shaft is transmitted to the power transmitting shaft; and
a shaft cover defining a shaft space that houses a portion of the motor driving shaft which projects from the motor housing, the shaft cover being detachably fixed to the outer surface of the crank case so as to cover the through hole.