The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 04, 1984

Filed:

Jul. 05, 1983
Applicant:
Inventors:

Susumu Miyakawa, Kariya, JP;

Hajime Akado, Anjo, JP;

Yoshihiro Taki, Nagoya, JP;

Kenji Hikida, Chiryu, JP;

Toshiaki Nakayama, Kariya, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55337 ; 55498 ;
Abstract

A cyclone type air cleaner has a cylindrical housing having a tangential air inlet formed in the peripheral wall of the housing and an air outlet formed in the upper end wall thereof. A downwardly converging frusto-conical member having a central opening is disposed in the housing coaxially therewith to divide the interior of the housing into a first or upper swirling chamber and a lower space in which a cylindrical or annular member is disposed coaxially with the central opening to define therein a second or lower swirling chamber communicated with the upper swirling chamber through the central opening. The cylindrical or annular member cooperates with the housing peripheral wall to define a dust-collecting chamber communicated with the lower swirling chamber through an annular gap defined between the frusto-conical member and the cylindrical or annular member. An axial flow type filter element is disposed between the upper swirling chamber and the air outlet.


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