Canister

JP7878025B2Active Publication Date: 2026-06-23MITSUBISHI MOTORS CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MITSUBISHI MOTORS CORP
Filing Date
2022-11-10
Publication Date
2026-06-23

AI Technical Summary

Benefits of technology

【0006】 本発明の一実施の形態によれば、コネクタを用いることなく大気開放管を直接第2筒部に接続することができると共に、大気ポートにコネクタを取り付けると共に、大気開放管の端部に設けられた大気開放管側のコネクタを、コネクタポートに接続することができる。 したがって、従来のように中間ホースを配置するための無駄なスペースをキャニスタの周囲に確保する必要がなくキャニスタの配置の自由度を確保する上で有利となり、また、従来のように複数の部品を設ける場合に比較してコネクタ単体を設ければ足りるため部品コストを低減する上で有利となる。 また、嵌合部が被嵌合部に嵌合した状態で、第2筒部の外面とコネクタの内面との間に空間部が確保されるので、大気ポートから漏出した燃料蒸発ガスを空間部に一時的に貯留することができる。そのため、燃料蒸発ガスの大気中への放出を防止する上で有利となり、大気汚染の抑制を図る上で有利となる。

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Abstract

To provide a canister which is advantageous in securing a freedom degree of arrangement and reducing a component cost.SOLUTION: A connector 18 is attached to an atmosphere port 28 so as to cover the atmosphere port 28, and the connector 18 includes a connector port 30 to which a quick connector provided at an end of an atmosphere release pipe is detachably attached. In a state that the connector 18 is attached to the atmosphere port 28, the connector 18 includes a large diameter cylinder 46 positioned in a radially outer side of a first cylinder 36 and a second cylinder 38, a small diameter cylinder 48 protruding from the large diameter cylinder 46 coaxially with the large diameter cylinder 46, and an annular plate 50 connecting a distal end of the large diameter cylinder 46 with a base end of the small diameter cylinder 48. In a state that a fitting portion 52 is fitted to a fitted portion 42, a space 56 is secured between an outer surface of the second cylinder 38 and an inner surface 1802 of the connector 18.SELECTED DRAWING: Figure 1
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Claims

1. An atmospheric port is provided, which includes a first cylindrical portion that protrudes from the canister case and has a fitted portion formed therein, and a second cylindrical portion that protrudes from the first cylindrical portion and has a smaller diameter than the first cylindrical portion. A connector having a connector port includes a mating portion that is fitted into the mating portion, With the fitting portion fitted to the receiving portion, a space is secured between the outer surface of the second cylindrical portion and the inner surface of the connector. A canister characterized by the following features.

2. The aforementioned canister case contains activated carbon. The end of the activated carbon is housed in the first cylindrical portion. A first sealing portion is provided that seals the space between the outer circumferential surface of the end of the activated carbon and the inner circumferential surface of the first cylindrical portion when the end of the activated carbon is housed in the first cylindrical portion. The canister according to feature 1.

3. The activated carbon is held in the canister case with its end in contact with the end face inside the first cylindrical portion. The canister according to feature 2.

4. The fitting portion is formed by a recess provided on the outer circumferential surface of the first cylindrical portion and extending in the circumferential direction of the first cylindrical portion. The first sealing portion is provided at a location displaced in the axial direction of the first cylindrical portion relative to the recess. The canister according to claim 3, characterized in that it is a canister.

5. With the connector fitted into the first cylindrical portion, the inner surface of the connector has an inner surface located radially outward from the outer surface of the first cylindrical portion. A second sealing portion, which seals the space between the inner circumferential surface of the connector and the outer circumferential surface of the first cylindrical portion, is provided at a location displaced in the axial direction of the first cylindrical portion relative to the first sealing portion. The canister according to feature 4.

6. The tip of the first cylindrical portion and the base end of the second cylindrical portion are connected by an annular plate portion. The second sealing portion seals the space between the inner circumferential surface of the connector and the outer circumferential surface of the annular plate portion. The canister according to claim 5, characterized in that it is a canister.

7. When the connector is fitted into the first cylindrical portion, the axial direction of the connector port and the axial direction of the second cylindrical portion are different. The canister according to feature 1.

8. The axial direction of the aforementioned connector port is upward. The canister according to claim 7, characterized in that it is a canister.

9. With the connector fitted into the first cylindrical portion, a dustproof and waterproof filter is provided in the space connecting the connector port and the second cylindrical portion. The canister according to feature 1.