Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Takehisa Fujita

Yasuhiro Yamamoto

Hajime Kato

Takashi Saito

Minoru Kawasaki

Tadashi Oshima

Nobuyuki Shinohara

Hironori Aoyama

Naoyuki Miyara

Eiichi Hioka

Hajime Takagawa

Kouji Tanaka

Yoshikazu Abe

A casting device includes a mold having a cavity, a supply path that is connected to a gate of the cavity and configured to supply a molten metal to the supply path, and a gas flow path that is connected to the supply path and configured to supply a gas to the supply path. In the casting device, a molten metal is atomized by causing the gas supplied from the gas flow path to collide with the molten metal passing through the supply path, and the atomized molten metal is supplied to the cavity.

Casting device

A wear-resistant copper-based alloy includes: at least one selected from the group made of molybdenum, tungsten, and vanadium and niobium carbide; chromium in an amount of less than 1.0% in terms of wt %; and a matrix and hard particles dispersed in the matrix, in which the hard particles include niobium carbide and at least one selected from the group made of Nb&#x2014;C&#x2014;Mo, Nb&#x2014;C&#x2014;W, and Nb&#x2014;C&#x2014;V around the niobium carbide.

Wear-resistant copper-based alloy, cladding alloy, cladding layer, and valve system member and sliding member for internal combustion engine

An internal combustion engine includes a cylinder head including an intake port, an exhaust port, a water jacket, an intake valve, an exhaust valve, an intake valve seat, and an exhaust valve seat. The water jacket is positioned between the intake port and the exhaust port. The intake valve includes an intake valve head, and the exhaust valve includes an exhaust valve head. The intake valve contacts an intake valve seat surface of the intake valve seat. The exhaust valve head contacts an exhaust valve seat surface of the exhaust valve seat. The shortest distance between the water jacket and the intake valve seat surface is shorter than the shortest distance between the water jacket and the exhaust valve seat surface.

Internal combustion engine

Growing community of inventors

Nisshin, Japan

Takehisa Fujita