Komatsu Corporation

Sohei Iwamoto

Makoto Watanabe

Yasuhiro Kamoshida

Tetsuo Orita

Makoto Nobayashi

Shohei Mantani

Shota Mido

Provided is an engine cooling device in which a flow passage switching part, which is provided between an outlet (EFb) of a cooling flow passage (EF) and a radiator and between the outlet (EFb) of the cooling flow passage (EF) and a pump, has valves that perform switching to a radiator connection flow passage or a bypass flow passage according to a temperature of a coolant (W), and a sleeve that is connected in parallel to the valves and is configured to circulate the coolant (W) to both the bypass flow passage and the radiator connection flow passage.

Engine cooling device and engine system

An intake apparatus includes: an air cleaner unit purifying air sucked from a suction port and discharge the air from a discharge port; a junction pipe section having a plurality of inlet ports while having a single outlet port, each of the inlet ports being connected to the discharge port of the air cleaner unit; a tapered pipe section connected to the outlet port of the junction pipe section and having an inner diameter gradually decreased toward a downstream; a straight pipe section connected to a downstream side of the tapered pipe section and having a constant inner diameter; and an air meter provided in the straight pipe section.

Intake apparatus and dump truck

Growing community of inventors

Tokyo, Japan

Sohei Iwamoto