公开(公告)号：US20060102156A1

公开(公告)日：2006-05-18

申请号：US11257079

申请日：2005-10-25

申请人： Tokio Yamauchi ,  Takashi Nagai ,  Masamitsu Hayakawa ,  Yukihiko Kaneda ,  Yojiro Iriyama

发明人： Tokio Yamauchi ,  Takashi Nagai ,  Masamitsu Hayakawa ,  Yukihiko Kaneda ,  Yojiro Iriyama

IPC分类号： F02M33/04 ,  B01D53/02

CPC分类号： F02M25/0854 ,  B01D53/0415 ,  B01D53/0446 ,  B01D53/0454 ,  B01D2253/102 ,  B01D2257/702 ,  B01D2258/012 ,  B01D2259/40086 ,  B01D2259/4516 ,  B01D2259/4566 ,  F02M25/089 ,  F02M2025/0863 ,  F02M2025/0881

摘要： A canister comprises a tank port communicated with an upper air chamber in a closed fuel tank, a purge port communicated with an intake passage of an engine, an atmospheric port opened to the atmosphere, and a main adsorbent chamber containing activated carbon, and the canister is further provided with a partition plate between the tank port and the purge port for preventing both ports from being directly communicated with each other, so as to form a first chamber between the main adsorbent chamber and the tank port, and a second chamber between the main adsorbent chamber and the purge port, and a purge buffer plate is further provided in the main adsorbent chamber between the tank port and the purge port, for communicating between the first and second chambers with each other, the first chamber serves as an air chamber containing no activated carbon while the second chamber contains activated carbon. With this configuration, the canister has no external pipe line, the time change in fuel concentration of purged gas during treatment of evaporated fuel from the fuel tank is moderated in order to restrain an engine air-fuel ratio from being abruptly changed, and the operation ability of the engine can be satisfied.

摘要翻译： 罐包括与封闭的燃料箱中的上​​部空气室连通的罐口，与发动机的进气通道连通的净化口，向大气开放的大气口以及包含活性炭的主吸附剂室， 在罐口和净化口之间还设置有隔板，用于防止两个端口彼此直接连通，从而在主吸附室和罐口之间形成第一室，在第二室 主吸附剂室和吹扫口，并且在主吸附剂室之间还设置有用于在第一和第二室之间连通的清洗口之间的净化缓冲板，第一室用作空气室 不含活性炭，而第二室含有活性炭。 利用这种结构，罐没有外部管路，从燃料箱处理蒸发燃料时的净化气体的燃料浓度的时间变化缓和，以抑制发动机空燃比急剧变化，操作 可以满足发动机的能力。

公开(公告)号：US07047952B1

公开(公告)日：2006-05-23

申请号：US11257079

申请日：2005-10-25

申请人： Tokio Yamauchi ,  Takashi Nagai ,  Masamitsu Hayakawa ,  Yukihiko Kaneda ,  Yojiro Iriyama

发明人： Tokio Yamauchi ,  Takashi Nagai ,  Masamitsu Hayakawa ,  Yukihiko Kaneda ,  Yojiro Iriyama

IPC分类号： F02M33/02

CPC分类号： F02M25/0854 ,  B01D53/0415 ,  B01D53/0446 ,  B01D53/0454 ,  B01D2253/102 ,  B01D2257/702 ,  B01D2258/012 ,  B01D2259/40086 ,  B01D2259/4516 ,  B01D2259/4566 ,  F02M25/089 ,  F02M2025/0863 ,  F02M2025/0881

摘要： A canister comprises a tank port communicated with an upper air chamber in a closed fuel tank, a purge port communicated with an intake passage of an engine, an atmospheric port opened to the atmosphere, and a main adsorbent chamber containing activated carbon, and the canister is further provided with a partition plate between the tank port and the purge port for preventing both ports from being directly communicated with each other, so as to form a first chamber between the main adsorbent chamber and the tank port, and a second chamber between the main adsorbent chamber and the purge port, and a purge buffer plate is further provided in the main adsorbent chamber between the tank port and the purge port, for communicating between the first and second chambers with each other, the first chamber serves as an air chamber containing no activated carbon while the second chamber contains activated carbon. With this configuration, the canister has no external pipe line, the time change in fuel concentration of purged gas during treatment of evaporated fuel from the fuel tank is moderated in order to restrain an engine air-fuel ratio from being abruptly changed, and the operation ability of the engine can be satisfied.

摘要翻译： 罐包括与封闭的燃料箱中的上​​部空气室连通的罐口，与发动机的进气通道连通的净化口，向大气开放的大气口以及包含活性炭的主吸附剂室， 在罐口和净化口之间还设置有隔板，用于防止两个端口彼此直接连通，从而在主吸附室和罐口之间形成第一室，在第二室 主吸附剂室和吹扫口，并且在主吸附剂室之间还设置有用于在第一和第二室之间连通的清洗口之间的净化缓冲板，第一室用作空气室 不含活性炭，而第二室含有活性炭。 利用这种结构，罐没有外部管路，从燃料箱处理蒸发燃料时的净化气体的燃料浓度的时间变化为了抑制发动机空燃比急剧变化， 可以满足发动机的能力。