Denso Corporation

Hiroki Nakagawa

Haruyuki Nishijima

Mika Gocho

Gouta Ogata

Hideki Hayashi

Kazunori Mizutori

Yasuhiro Tamatsu

Toshiki Hirukawa

Masahiko Ikawa

A nozzle of an ejector depressurizes and injects fluid, which is supplied to the nozzle. The nozzle is received in a receiving space of a body. The nozzle and the body are formed by press working. The nozzle includes nozzle-side ribs, which extend in an axial direction and project radially outward. The body includes body-side ribs, which extend in the axial direction and project radially outward. In a predetermined cross section of each of the nozzle and the body, which is perpendicular to the axial direction and includes the corresponding ribs, the nozzle or the body is formed seamlessly as a continuous single piece member.

Ejector

A cutting tool is provided to process a processed member having an opening portion with a curved inner surface, so that a through hole is formed and a part of the inner surface of the opening portion corresponding to the through hole is processed. The through hole extends from a surface of the processed member to reach the opening portion. The cutting tool includes a shank member, and a processing member having a smaller diameter than the shank member. A groove portion of the processing member has a cutting edge, and a chip evacuation groove through which chip is expelled outward. A self guide portion of the processing member is arranged between the groove portion and the shank member and provided with a substantially cylindrical shape, to guide the cutting edge toward the part of the inner surface of the opening portion corresponding to the through hole in the processing.

Cutting tool and processing method by the same

Growing community of inventors

Toyohashi, Japan

Hiroki Nakagawa