Patent ID: 11879465
Assignee: FUJITSU GENERAL LIMITED
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 11:
12. The compressor according to claim 9,
wherein an exterior inner wall surface of an inner wall surface of the rotor gas passage, the exterior inner wall surface is formed on a side distant from the rotation axis, includes
a first exterior inner wall surface portion,
a second exterior inner wall surface portion, and
a middle exterior inner wall surface portion that is formed between the first exterior inner wall surface portion and the second exterior inner wall surface portion,
the middle exterior inner wall surface portion is formed on a side of the first exterior inner wall surface portion and the second exterior inner wall surface portion that is close to the rotation axis, and
the protrusion covers a region of the upper end that is adjacent to the first exterior inner wall surface portion and a region of the upper end that is adjacent to the second exterior inner wall surface portion.