JPS6113736Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to a canister device for a two-wheeled motor vehicle.

Conventionally, this type of device includes a purge port that guides fuel vapor in the canister leading to the fuel tank into the air cleaner on the upstream side of the intake passage of the engine;
A type in which a gas port for guiding blow-by gas in the engine is installed in parallel is known, but in this case, the pressure of the blow-by gas discharged through the gas port acts on the adjacent purge port from the front side. This has the disadvantage of tending to reduce the amount of fuel vapor directed through the purge port.

The purpose of the present invention is to obtain a device free from such inconveniences, and the purpose of the present invention is to provide a device that does not have such inconveniences.
A purge port 6 for guiding fuel vapor in a canister 5 connected to the fuel tank 4 and a gas port 7 for guiding blow-by gas in the engine 1 are arranged in parallel in the air cleaner 3 on the upstream side of the air cleaner 3. The purge port 6 and the gas port 7 are provided on the end plate 3c of the end face of the element 3b inside.
and separate enlarged portions 8a, 8a shaped like a frame housing with openings.
and openings 8b, 8b that open oppositely to the enlarged portions 8a, 8a.
It is characterized in that the purge port 6 and the gas port 7 are isolated from each other via the separator 8.

The air cleaner 3 consists of an outer case 3a and an element 3b inside, and the purge port 6 and the gas port 7 are provided on an end plate 3c on the end surface of the element 3b so as to be offset upward and downward. The separator 8 is polymerized and bonded to the front surface of the separator 8, and has a frame-like enlarged portion 8a, 8a on the front surface of each port 6, 7, and openings 8b, 8b on the upper and lower surfaces thereof. The model is equipped with

Furthermore, a guide material 9 is polymerized and bonded to the back surface of the guide material 9, and a cylindrical portion 9 connected to each port 6, 7 is attached to this guide material 9.
a and 9a are formed integrally. The canister 5 is made of, for example, a charcoal canister, and is connected to the inside of the tank 4 through one conduit 10 and to the port 6 through the other conduit 11. In the drawings, reference numeral 12 indicates a breather tube that communicates the engine 1 and the port 7.

In this way, when using the present invention, the air cleaner 3
The purge port 6 and the gas port 7 which are arranged in parallel are connected to the end plate 3 of the end face of the air cleaner element 3b.
Since the ports 6 and 7 are isolated from each other through a separator 8 attached to the port c, mutual interference between the ports 6 and 7 is prevented. , 8a, and openings 8b, 8b opposite to the enlarged portions 8a, 8a.
Since the separator 8 is equipped with the following, the separator 8 has the effect of effectively preventing interference between the ports 6 and 7 without interfering with the jet flow from the ports 6 and 7.

[Brief explanation of the drawing]

FIG. 1 is a partially cut-away side view of an example of the present device, FIG. 2 is an enlarged cut-away side view of the main part thereof, and FIG. 3 is a front view of a separator. 1...Engine, 2...Intake passage, 3...Air cleaner, 4...Fuel tank, 5...Canister, 6...Purge port, 7...Gas port, 8
...Separator.

Claims (1)

[Scope of utility model registration request] A purge port 6 for guiding fuel vapor in a canister 5 connected to a fuel tank 4 and a gas port 7 for guiding blow-by gas in the engine 1 are arranged in parallel in an air cleaner 3 at the upstream end of an intake passage 2 of an engine 1. In the air cleaner 3, an end plate 3c on the end surface of the element 3b has separate enlarged portions 8a, 8b in the shape of a frame housing into which the purge port 6 and the gas port 7 open, and the enlarged portions 8a, 8b. 8a
A canister device characterized in that a separator 8 having openings 8b and 8b that open oppositely to each other is attached, and the purge port 6 and the gas port 7 are isolated from each other via the separator 8.