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US 2012/0057929 A1Published application
Fastening structure of power unit
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTomoyuki Kasuga, Takashi Shimizu, Yukinobu Nishikawa, Yota Mizuno, Yuji Shimada, Kenji Odaka
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Abstract
A hybrid transaxle 200 that is a transmission is provided with a junction surface 20 that contacts a junction surface of an internal combustion engine. A bolt span portion 20a of the junction surface 20 is provided with a protrusion portion 25 that elastically deforms so that the internal combustion engine-side junction surface and the hybrid transaxle 200-side junction surface 20 closely contact each other.
Claims12
A fastening structure of a power unit formed by fastening an internal combustion engine and a transmission, comprising:
- a first junction surface provided on the internal combustion engine;
- a second junction surface provided on the transmission;
- a plurality of bolts which are respectively inserted into a plurality of insertion holes that are formed in the first junction surface and second junction surface, and which integrally fasten the internal combustion engine and the transmission together while the first junction surface and the second junction surface are placed in contact with each other;
- and
- a protrusion portion provided in a bolt span portion that is positioned between insertion holes in at least one of the first junction surface and the second junction surface.
2 more elements
Dependencies are inferred from the claim text.