Air filter assembly with charcoal canister

Abstract

The air filter assembly with charcoal canister includes an air filter and charcoal canister. The air filter and charcoal canister connect with each other by clamping. The charcoal canister and filter are connected with each other with compact structure and overall appearance. The assembling is simplified, and time and costs are saved.

Claims

1. An air filter assembly comprising: an air filter; a charcoal canister, said air filter and said charcoal canister being clamped to each other; a ventilating nozzle disposed on said air filter; and an air outlet disposed on said charcoal canister, said ventilating nozzle removably inserting into said air outlet so as to clamp said ventilating nozzle to said air outlet.

2. The air filter assembly, according to claim 1, further comprising: a seal ring disposed between said ventilating nozzle and said air outlet.

3. The air filter assembly, according to claim 1, wherein said charcoal canister comprises a charcoal cap, and a canister body, said canister body being comprised of a filling room with an upper opening, and fuel-absorption substrate filled in said filling room, said charcoal cap being placed above of said canister body and covering an upper opening of said filling room, said air outlet being disposed on said charcoal cap, said canister body having an air inlet being disposed on a bottom of said canister body.

4. The air filter assembly, according to claim 3, wherein said fuel-absorption substrate is activated charcoal.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view of the present invention.

(2) FIG. 2 is a partial enlarged schematic view of FIG. 1.

DETAILED DESCRIPTION OF THE DRAWINGS

(3) The following descriptions of the embodiments and their accompanying drawings of the present invention are intended to illustrate and not to limit this invention.

(4) FIG. 1 and FIG. 2 show a new kind of air filter assembly with charcoal canister, comprising air filter 1 and charcoal canister 2. The air filter 1 and charcoal canister 2 are clamped so as to be connected with each other.

(5) Furthermore, the ventilating nozzle 1.2 is disposed on said air filter 1, the air outlet is disposed on the charcoal canister 2, and the ventilating nozzle 1.2 and the air outlet are connected by clamping. In order to strengthen the tightness between the ventilation nozzle 1.2 and the air outlet, the seal ring 4 is disposed between the ventilation nozzle 1.2 and the air outlet.

(6) Furthermore, the charcoal canister 2 comprises a charcoal cap 2.1, and a canister body 2.2. The canister body 2.2 comprises a filling room with an upper opening, and fuel-absorption substrate is filled in the filling room. The charcoal cap 2.1 covering the upper opening of the filling room is disposed above the canister body 2.2. The air outlet is disposed on the charcoal cap 2.1. The air inlet 2.3 is disposed on the bottom of the canister body 2.2, and the air inlet 2.3 is connected to the fuel tank by fuel pipe 3.

(7) Furthermore, the fuel-absorption substrate is activated charcoal. In this embodiment, although the connection of the charcoal cap 2.1 and the air filter 1 is realized by the ventilating nozzle 1.2 and the air outlet being connected by clamping, in order to strengthen the connection of the charcoal canister 2 and the air filter 1, the charcoal cap 2.1 and the air filter 1 can be connected by bolts.

(8) The working method of the present invention includes the vent nozzle 1.1 being disposed on the air filter 1. The fuel vapor in the fuel tank enters the charcoal canister 2 through the fuel pipe 3, and is discharged to the atmosphere after it goes through the fuel-absorption substrate. The fuel vapor from the charcoal canister 2 goes through the ventilating nozzle 1.2, the air filter 1, then the vent nozzle 1.1, then gets discharged to the atmosphere.

(9) The above-described preferred embodiments of the present invention is not intended to limit the present invention, any modification within the spirit and principles of the present invention, made by the equivalent replacement, improvement, etc., should be included in the protection of the present invention within the range.