Patent ID: 11953020
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A turbofan, comprising:
a circular end plate;
a ring-shaped shroud facing the end plate; and
a plurality of blade members disposed between the end plate and the shroud, each of the blade members being fixed to both the end plate and the shroud,
an annular portion of a space between the end plate and the shroud where the blade members are disposed being a pressure-increase flow path, the turbofan causing air to flow from an inner peripheral side to an outer peripheral side of the pressure-increase flow path through rotation of the end plate, the shroud, and the blade members, which rotate together as a unit, and
a cross-sectional area of the pressure-increase flow path increasing gradually from an upstream end toward a downstream end thereof.