Kabushiki Kaisha Toyota Jidoshokki

Yuki Okano

Hiroshi Saito

Yuki Endo

Arata Ioki

Hayato Onda

A fluid machine includes a thrust bearing support supporting a dynamic thrust bearing that includes a first dynamic thrust bearing and a second dynamic thrust bearing and including a first bearing base and a second bearing base fixed to each other via a spacer member. The fluid machine includes a main passage through which fluid flows from a motor chamber toward an operation chamber, and a space between an inner side of the spacer member and an outer side of the first dynamic thrust bearing and the second dynamic thrust bearing in a radial direction of a rotary shaft. The space communicates with a first through hole of the first bearing base communicating with the motor chamber and a second through hole of the second bearing base communicating with the main passage. The thrust bearing support includes a connecting passage interconnecting the space and the main passage.

Fluid machine

An electric turbo compressor including a housing, an electric motor, and a rotating body driven to rotate by the electric motor. The rotating body includes a rotary shaft, a first impeller, and a second impeller. The first impeller includes a first hub fixed to the rotary shaft, and a plurality of first blades arranged on the first hub, and the second impeller includes a second hub fixed to the rotary shaft, and a plurality of second blades arranged on the second hub. In the rotating body, mass of part of the rotating body from one ends to the other ends of the first blades along the axial direction is greater than mass of part of the rotating body from one ends to the other ends of the second blades along the axial direction.

Electric turbo compressor

A turbo fluid machine includes: a housing including an impeller chamber and a motor chamber accommodating an electric motor; an impeller that is accommodated in the impeller chamber and compresses fluid by the electric motor; a drive shaft extending in an axial direction of the drive shaft to connect the impeller and the electric motor; and a gasket sealing between the impeller chamber and an outside of the housing. The housing includes a first housing and a second housing that form the impeller chamber. The first housing and the second housing are arranged in the axial direction. The gasket is disposed between the first housing and the second housing in the axial direction. The first housing and the second housing are in contact with each other in the axial direction on at least one of an outer circumferential side and an inner circumferential side of the gasket.

Turbo fluid machine

A fluid machine includes a rotary shaft, an operation body configured to discharge fluid by rotation of the rotary shaft, a housing accommodating the rotary shaft and the operation body, and a foil bearing disposed in the housing rotatably supporting the rotary shaft. The foil bearing includes a cylindrical bearing housing, a top foil between the bearing housing and the rotary shaft, and a bump foil between the bearing housing and the top foil and elastically supporting the top foil. The bearing housing has a protrusion protruding inwardly in a radial direction from the bearing housing. The protrusion includes an abutment surface configured to restrict deformation of the bump foil to an elastic range not to reach a plastic range by abutting against the top foil or the bump foil when the top foil is displaced outwardly in the radial direction of the bearing housing.

Growing community of inventors

Aichi-ken, Japan

Yuki Okano