Air cleaner

• US 4,846,859 A
• Filed: 09/01/1988
• Issued: 07/11/1989
• Est. Priority Date: 12/16/1983
• Status: Expired due to Term

• Current Assignee: Nitta Corporation
• Original Assignee: Nitta Corporation
• Inventors: Yoshimura, Keiji, Otsuka, Kazuhiko, Tamaki, Toshitaka, Uragami, Hisato, Nobiraki, Koji, Metoku, Yoshiharu
• Primary Examiner(s): Nozick, Bernard
• Application Number:
  US07/239,241
• Time in Patent Office: 313 Days
• Field of Search: 55/276, 55/355, 55/473, 55/484
• US Class Current: 96/384
• CPC Class Codes: B01D 2273/30 Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• CPC Class Codes: B01D 46/4236 Reducing noise or vibration emissions
• CPC Class Codes: B01D 46/521 using folded, pleated material
• CPC Class Codes: B01D 46/58 connected in parallel
• CPC Class Codes: F24F 13/24 Means for preventing or suppressing noise
• CPC Class Codes: F24F 13/28 Arrangement or mounting of filters

Abstract

An air cleaner comprising a thin lightweight fan module having at least one fan, at least one casing containing one fan therein and at least one housing containing one casing therein; a thin lightweight air filter module having an air filter; and an air flow moderator disposed between the fan module and the air filter module.

Claims

1. An air cleaner comprising a thin lightweight fan module including a housing having an inlet, an outlet, at least one fan, and at least one casing containing said at least one fan therein;

a thin light weight air filter module in said housing adjacent said outlet and having an air filter; and

an air flow moderator plate disposed between three walls of the housing and connected thereto to define a flow path between the fan and plate and the plate and the air filter, said housing of the fan module being provided with vibration and noise absorbers.

2. An air cleaner according to claim 1, wherein said fan is a propeller-type fan.

3. An air cleaner according to claim 1, wherein said fan is a sirocco fan.

4. An air cleaner according to any one of claims 1-3, wherein said fan is provided with a resonance preventor at its back.

5. An air cleaner according to claim 4, wherein said resonance preventor is a flywheel.

6. An air cleaning system comprising:

(1) a latticework of interconnected H-shaped channels having their openings directed upwardly and a sealing liquid positioned therein,

(2) a plurality of air filter modules, each of which includes an air filter and has a surrounding frame containing a continuous U-shaped channel;

said U-shaped channel having an upwardly directed opening and a sealing liquid positioned therein, and said upward opening of said U-shaped channel receiving the lower rim of said H-shaped channel, and

(3) a plurality of fan modules, each of which includes a fan, a casing containing said fan therein and a housing containing said casing therein, and is disposed at the back of each of said air filter modules, said fan module having a surrounding frame containing a continnuous vertically disposed extension which rests in the upward opening of said H-shaped channel.

7. An air cleaning system according to claim 6, wherein said air filter module is thin and lightweight.

8. An air cleaning system according to claim 6, wherein said fan module is thin and lightweight.

9. An air cleaning system according to claim 8, wherein said fan is a propeller-type fan.

10. An air cleaning system according to claim 8, wherein said fan is a sirocco fan.

11. An air cleaning system according to claim 8, wherein said housing of the fan module is provided with vibration and noise absorbers.

12. An air cleaning system according to claim 8, wherein said fan is provided with a resonance prevention device at its back.

13. An air cleaning system according to claim 12, wherein said resonance prevention device is a flywheel.