Turbofan
AssigneeDaikin Industries, Ltd.
InventorsRyuusuke Ohtaguro, Kaname Maruyama, Masahito Higashida
Life of this patent
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Abstract
A turbofan includes 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. An annular portion of a space between the end plate and the shroud where the blade members are disposed is a pressure-increase flow path. The turbofan causes air to flow from an inner peripheral side to an outer peripheral side of the pressure-increase flow path. A cross-sectional area of the pressure-increase flow path increases gradually from an upstream end toward a downstream end of the pressure-increase flow path.
Claims7
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.
Dependencies are inferred from the claim text.