Toyota Jidosha Kabushiki Kaisha

Seiji Sasaki

Tatsuhisa Yokoi

Toshio Yamamoto

Ryouhei Kusunoki

Akiyuki Iemura

Takuya Nigoro

Tetsuo Ide

An air cleaner including a front housing, a rear housing, and a filter. The filter includes a plurality of parallel folds and partitions a pre-filtering chamber and a post-filtering chamber. The air cleaner circulates air, which enters the pre-filtering chamber through an inlet port, to the post-filtering chamber to filter the air. The pre-filtering chamber includes a diffusion zone located outward from an end of the filter in a folding direction of the filter. The inlet port extends in a direction orthogonal to the folding direction of the filter along a plane parallel to the filtering surface of the filter and opens in the diffusion zone.

Gas filtering apparatus

An EGR cooler system according to the invention includes an EGR cooler cooling device that is provided in a coolant path which is separate from the path provided with an engine cooling system which cools coolant. The EGR cooler cooling devices cools the coolant to be supplied to a water-cooled EGR cooler. The EGR cooler system also includes a water pump that circulates the coolant within the coolant path; a bypass passage through which the coolant may bypass the EGR cooler cooling device or the water-cooled EGR cooler; and a flow control valve that regulates the amount of coolant flowing into the bypass based on the temperature of the coolant flowing through the coolant path.

EGR cooler system

Growing community of inventors

Toyota, Japan

Seiji Sasaki