JPH03127075U

JPH03127075U -

Info

Publication number: JPH03127075U
Application number: JP3663690U
Authority: JP
Priority date: 1990-04-06
Filing date: 1990-04-06
Publication date: 1991-12-20

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略構成図、
第２図は本考案の一実施例における燃料吸着時の
活性炭収納部の温度分布を示す特性図、第３図は
本考案の一実施例における燃料脱気時の活性炭収
納部の温度分布を示す特性図である。１０……燃料吸着量検出装置、１２……キヤニ
スター、１４……容器、１６……活性炭、１８…
…蒸発燃料取入口、２０……大気連通口、２２…
…燃料還元口、２４，２６，２８，３０……内部
温度センサー、３２……外部温度センサー、３４
……判定回路。 FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention;
Fig. 2 is a characteristic diagram showing the temperature distribution of the activated carbon storage part during fuel adsorption in an embodiment of the present invention, and Fig. 3 shows the temperature distribution of the activated carbon storage part during fuel degassing in an embodiment of the invention. It is a characteristic diagram. 10... Fuel adsorption amount detection device, 12... Canister, 14... Container, 16... Activated carbon, 18...
...Evaporative fuel intake port, 20...Atmospheric communication port, 22...
... Fuel return port, 24, 26, 28, 30 ... Internal temperature sensor, 32 ... External temperature sensor, 34
...Judgment circuit.

Claims

【実用新案登録請求の範囲】 (1) 容器内に収納された活性炭に蒸発燃料を通
過させ、この蒸発燃料を活性炭で吸着することに
より燃料の漏出を防止するキヤニスターにおいて
、前記活性炭の収納部に温度センサーを設けたこ
とを特徴とするキヤニスター用燃料吸着量検出装
置。 (2) 上記温度センサは、上記収納部において蒸
発燃料の通過方向に沿つて配置された１又は２以
上の内部温度センサと、外気温を検出する外部温
度センサとからなることを特徴とする請求項１記
載のキヤニスター用燃料吸着量検出装置。[Scope of Claim for Utility Model Registration] (1) In a canister that prevents leakage of fuel by passing evaporated fuel through activated carbon stored in a container and adsorbing the evaporated fuel with activated carbon, the activated carbon is stored in a storage part of the canister. A fuel adsorption amount detection device for a canister characterized by being equipped with a temperature sensor. (2) A claim characterized in that the temperature sensor comprises one or more internal temperature sensors arranged along the passage direction of the evaporated fuel in the storage section, and an external temperature sensor that detects the outside temperature. Item 1. The fuel adsorption amount detection device for a canister according to item 1.