Title:
真空ポンプ、真空ポンプ用回転体、及び真空ポンプの製造方法
Document Type and Number:
Japanese Patent JP7390408
Kind Code:
B2
Abstract:
[Problem] To provide a vacuum pump that is capable of preventing a material from being wasted, and is easily manufactured. [Solution] This vacuum pump is provided with: body casings 127 and 129; and a rotating body 103 installed in the body casings 127 and 129 to be freely rotatable. The rotating body 103 has a structure in which a second component is covered on the periphery of a first component arranged inside. The second component is formed by solidifying powder. The first component is formed of at least one of an extruded material, a casting material, and a forging material. The second component is formed of a green compact.
Inventors:
Takeshi Kabasawa
Application Number:
JP2022003614A
Publication Date:
December 01, 2023
Filing Date:
January 13, 2022
Export Citation:
Assignee:
Edwards Co., Ltd.
International Classes:
F04D19/04; B22F7/08; B22F10/14; B22F10/18; B22F10/25; B22F10/28; B33Y10/00; B33Y80/00
Domestic Patent References:
| JP2016205391A | ||||
| JP2004263687A | ||||
| JP2007071139A | ||||
| JP62203721A |
Attorney, Agent or Firm:
Koji Mizuno
Ryo Matsushita
Keita Noguchi
Ryo Matsushita
Keita Noguchi
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