Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Hideaki Teramoto

Tomohisa Senda

Masaki Makihara

Kyohei Ninomiya

Yu Sakurai

Ryo Ikegami

Takuma Kuriki

Naoki Tajima

An intake manifold includes a passage wall portion having a first member passage wall portion provided at a first member, a second member passage wall portion provided at a second member, and an inner joint portion including a division point at which an inner joint portion is divided from an outer peripheral joint portion, the inner joint portion at which the first member passage wall portion and the second member passage wall portion are joined with each other. At least a part of the inner joint portion except for the division point is arranged at a height position closer to a middle part of a gas passage than the division point in a first direction in which the first member and the second member are opposed with each other.

Intake manifold

This air intake apparatus includes an air intake apparatus main body including a plurality of pieces bonded to each other along a split plane and an external gas passage formed inside the air intake apparatus main body by bonding the plurality of pieces to each other and including an external gas receiving port that directly receives external gas from a cylinder head and an external gas introduction port that introduces the external gas into a surge tank.

Air intake apparatus

This air intake apparatus includes an air intake apparatus body including an intake air passage and an external gas passage portion provided as a structure separate from the air intake apparatus body inside the air intake apparatus body, the external gas passage portion through which external gas can be introduced into the intake air passage.

An intake manifold includes plural intake pipes, a distribution portion connecting to the plural intake pipes and guiding fluid at an inside of the distribution portion to the plural intake pipes and a first protruding portion providing at least a same number of the plural intake pipes at the inside of the distribution portion, the first protruding portion being directed to the corresponding intake pipes.

Provided are an arrangement capable of reliably preventing freeze of a PCV channel without requiring additional piping and an intake manifold having this arrangement. This arrangement for freeze prevention of a PCV channel includes a PCV channel returning blowby gas containing un-combusted fuel gas as a main component thereof and leaked into an engine to an intake port, an EGR channel returning exhaust gas exhausted from the engine to the intake port, and a heating portion as a common portion between a PCV outer wall of the PCV channel and an EGR outer wall of the EGR channel.

Growing community of inventors

Kariya, Japan

Hideaki Teramoto