Patent ID: 11867187
Assignee: SHIMADZU CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A vacuum pump comprising:
a rotor cylindrical portion;
a motor configured to rotate the rotor cylindrical portion;
a stator cylindrical portion, the rotor cylindrical portion and the stator cylindrical portion together forming a screw groove pump;
a base housing the rotor cylindrical portion and the stator cylindrical portion;
a heater configured to heat the base or the stator cylindrical portion to prevent gas adherence;
a cooling device attached to the base; and
a cover member arranged at an outer peripheral side of the stator cylindrical portion and an outer peripheral side of the base,
wherein the cover member covers the base through an air insulating layer so that the cover member is not in direct contact with the base,
the cover member is in direct contact with the cooling device so that the cover member is cooled by the cooling device, and
the cover member surrounds the base to prevent a user contacting a high-temperature outer peripheral portion of the base.