Air cleaner for internal combustion engine
AssigneeNissan Motor Co., Ltd.
InventorKazuhiro Yamamura
Life of this patent
Estimating the term…
Abstract
Two flat filter elements are disposed in a casing in such a manner that they are inclined to each other and arranged symmetrical with respect to a middle portion of the casing. With this, two dust side chambers are defined in the casing at the lower sides of the filter elements, to which members air inlet openings formed in side walls of the casing are exposed respectively. A cover is disposed on the casing to define at the upper sides of the two filter elements a common clean side chamber to which an air outlet opening formed in the cover is exposed. The cover is formed with two substantially identical air flow passages which independently extend from the respective filter elements to the air outlet opening of the cover.
Claims17
An air cleaner comprising:
- a casing including first and second receptacle portions which are symmetrically arranged with respect to a center portion of the casing, each receptacle portion including an air inlet opening and a holding portion, the holding portions being inclined to one another to form a generally V-shaped recessed portion of the casing;
- first and second filter elements respectively held by the holding portions of said first and second receptacle portions, so that first and second dust side chambers are defined at one side of said first and second filter elements, respectively, in said casing to which the air inlet openings of said first and second receptacle portions are exposed respectively;
- a cover having a protruding portion which overlies the filter elements and the V-shaped recessed portion of the casing and in which an air outlet opening is formed, said cover being sealingly disposed on said casing in such a manner that a common clean side chamber is defined at the other sides of said first and second filter elements, to which said air outlet opening is exposed;
- and
- structure means defining in said cover two substantially identical flow passages which extend from the respective filter elements to said air outlet opening of the cover.
An air cleaner comprising:
- a casing including first and second receptacle portions which are symmetrically arranged with respect to a center part of the casing, each receptacle portion including an air inlet opening and a bottom, the receptacle portions being inclined to one another to form a generally V-shaped recessed portion of the casing;
- first and second filter elements respectively held in said first and second receptacle portions in such a manner that first and second dust side chambers are defined at one side of each of said first and second filter elements in said casing, to which dust side chambers said air inlet openings are opened respectively;
- a cover sealingly disposed on said casing in such a manner that a common clean side chamber is defined at the other side of each of said first and second filter elements, said cover being formed with a protruding portion which is shaped to correspond with said V-shaped recessed portion of the casing, said cover being formed with a wall which forms part of said protruding portion, said wall being formed with an air outlet opening which communicates said clean air side chamber with the outside of said air cleaner;
- and
- air flow passage defining means which defines in said clean side chamber two substantially equal air flow passages which extend from the respective filter elements to said air outlet opening of said cover;
- wherein the axis of each air inlet opening is substantially perpendicular to that of said air outlet opening.
Dependencies are inferred from the claim text.