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US 12,085,308 B2Granted
Air conditioning system
AssigneeHitachi Global Life Solutions, Inc.
InventorsMitsuru Sekizawa, Yuuiti Sato, Kazuhito Matsuzaki
Life of this patent
Estimating the term…
Abstract
An air conditioning system includes a first unit and a second unit. The space above the ceiling of each of a plurality of clean rooms is included in the chamber as a single space common to a plurality of the clean rooms. The first clean room is higher than the second clean room in air cleanliness.
Claims8
An air conditioning system, comprising:
- a first unit including a first fan configured to supply air to a first clean room of a plurality of clean rooms from a chamber including a space above a ceiling of the first clean room;
- and
- a second unit including a second fan configured to return the air from the first clean room through the chamber,
- wherein the space above the ceiling of each of the plurality of clean rooms included in the chamber is a single space common to the plurality of the clean rooms,
- wherein each of the plurality of clean rooms includes the first clean room in which the second unit is configured to return air from the first clean room to the chamber via a duct shaft, and also includes a second clean room in which the air is exhausted from the first clean room to outside thereof, without using any duct shaft, and
- wherein the first clean room is higher than the second clean room in air cleanliness, and
- wherein air in the second clean room is not returned to the chamber.
4 more elements
An air conditioning system, comprising:
- a first clean room;
- a second clean room, the first clean room being higher than the second clean room in air cleanliness;
- a plurality of first units, each of which includes a first fan, the first fan being configured to supply air, to each of the first clean room and the second clean room, from a chamber including a space above a ceiling of each of the first clean room and the second clean room, the space above the respective ceilings being a single space;
- and
- a second unit including a second fan configured to return the air from the first clean room through the chamber, wherein
- the air in the first clean room is returned to the chamber via a duct shaft using the second unit,
- the air in the second clean room is exhausted to outside thereof, without using any duct shaft, and
- the air in the second clean room is not returned to the chamber.
5 more elements
Dependencies are inferred from the claim text.