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公开(公告)号：US20220252025A1
公开(公告)日：2022-08-11
申请号：US17578725
申请日：2022-01-19
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Takuya Nakagawa , Masahito Hosoi , Tamami Ina
IPC: F02M25/08
Abstract: Provided is an evaporated fuel treatment device configured to adsorb and desorb an evaporated fuel originating in a fuel tank. A first adsorption chamber is arranged in a flow passage. A second adsorption chamber is connected to the first adsorption chamber, and is arranged, in the flow passage, closer to an atmosphere port with respect to the first adsorption chamber. A first adsorption layer is arranged within the first adsorption chamber, and adsorbs the evaporated fuel. A second adsorption layer is arranged within the second adsorption chamber, and adsorbs the evaporated fuel. A sectional area of the second adsorption layer perpendicular to a direction in which the evaporated fuel flows through the second adsorption layer being larger than a sectional area of the first adsorption layer perpendicular to a direction in which the evaporated fuel flows through the first adsorption layer.
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2.发明申请公开(公告)号：US20200271077A1
公开(公告)日：2020-08-27
申请号：US15931183
申请日：2020-05-13
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Takuya Nakagawa , Masahito Hosoi , Kyohei Yamaguchi
IPC: F02M25/08 , B01D53/04 , B60K15/035 , B67D7/04
Abstract: A canister includes a charge port, a purge port, an atmosphere port, a main chamber, a sub chamber, activated carbon, and more activated carbon. The charge port takes in evaporated fuel. The purge port discharges the evaporated fuel. The atmosphere port is open to the atmosphere. The charge port and the purge port are connected to the main chamber. The sub chamber communicates with the main chamber. The atmosphere port is connected to the sub chamber. The activated carbon is stored in a main volume (Vmain) in the main chamber. The more activated carbon is stored in a sub volume (Vsub) in the sub chamber. A ratio of a length L in a gas flow direction to an equivalent diameter D in a section perpendicular to the gas flow direction is 2 or more for the sub chamber. An activated carbon volume ratio (Vmain/Vsub) is 5.5 to 7.
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Patent Agency Ranking
公开(公告)号：US20240316529A1
公开(公告)日：2024-09-26
申请号：US18610677
申请日：2024-03-20
Inventor： Yoshihide Watanabe , Dongyeon Ryu , Minoru Yada , Takuya Nakagawa , Shogo Minezawa , Masahito Hosoi , Koji Iwamoto , Kyohei Yamaguchi , Tamami Ina
CPC classification number: B01J20/20 , B01J20/28023 , B01J20/2803 , B01J20/28066 , B01J20/28073 , B01J20/28076 , B01J20/28083 , B01J2220/42 , B01J2220/66
Abstract: A problem is to provide a formed adsorber having excellent adsorption and desorption performance for fuel vapor (in particular, n-butane) of a wide concentration range from a low concentration to a high concentration.
A formed product including activated carbon fiber, granular activated carbon, and a binder is prepared. A weight ratio of the activated carbon fiber to the granular activated carbon is 5 to 95 parts by weight of the activated carbon fiber to 95 to 5 parts by weight of the granular activated carbon, in a total weight of the activated carbon fiber and the granular activated carbon, a content ratio of the binder in the formed adsorber is 0.3 to 20 parts by weight of the binder to 100 parts by weight of the activated carbon fiber and the granular activated carbon, the granular activated carbon has a total pore volume ranging from 0.90 to 2.50 cm3/g, and the activated carbon fiber has a total pore volume ranging from 0.50 to 1.20 cm3/g.-
公开(公告)号：US11661911B2
公开(公告)日：2023-05-30
申请号：US17578725
申请日：2022-01-19
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Takuya Nakagawa , Masahito Hosoi , Tamami Ina
IPC: F02M25/08
CPC classification number: F02M25/0854 , F02M25/0872
Abstract: Provided is an evaporated fuel treatment device configured to adsorb and desorb an evaporated fuel originating in a fuel tank. A first adsorption chamber is arranged in a flow passage. A second adsorption chamber is connected to the first adsorption chamber, and is arranged, in the flow passage, closer to an atmosphere port with respect to the first adsorption chamber. A first adsorption layer is arranged within the first adsorption chamber, and adsorbs the evaporated fuel. A second adsorption layer is arranged within the second adsorption chamber, and adsorbs the evaporated fuel. A sectional area of the second adsorption layer perpendicular to a direction in which the evaporated fuel flows through the second adsorption layer being larger than a sectional area of the first adsorption layer perpendicular to a direction in which the evaporated fuel flows through the first adsorption layer.
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公开(公告)号：US10508620B2
公开(公告)日：2019-12-17
申请号：US15762358
申请日：2016-12-16
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Keisuke Kuboyama , Koji Iwamoto , Takuya Nakagawa
Abstract: An evaporated fuel treatment device is provided in a canister including first to third chambers. The first chamber is provided with an inflow port and an outflow port at an end part thereof, and is connected to the second chamber. The evaporated fuel treatment device is configured as the third chamber of the canister. The third chamber has disposed therein activated carbon as an adsorbent material. The side connected to the second chamber in the third chamber is defined as second chamber side, and the side opposite to the second chamber side is defined as atmosphere side. An atmosphere port is provided at an end part on the atmosphere side of the third chamber. The third chamber is provided with a highly adsorptive layer and a low adsorptive layer which are aligned from the second chamber side to the atmosphere side.
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公开(公告)号：US20200291903A1
公开(公告)日：2020-09-17
申请号：US16810336
申请日：2020-03-05
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Takuya Nakagawa , Makoto Kato , Masahito Hosoi
Abstract: A canister includes a main chamber where a charge port and a purge port are located, and at least one subsidiary chamber. Any one of the at least one subsidiary chamber includes an atmosphere port. The at least one subsidiary chamber includes at least one specified subsidiary chamber including a specified absorption layer containing specified activated carbon. An L/D of the specified absorption layer is equal to or greater than 2.0 and equal to or less than 7.0 where L is a length of the specified absorption layer and D is an equivalent diameter of a cross-section of the specified absorption layer taken orthogonally to longitudinal directions. The specified activated carbon has BWC equal to or greater than 8.0 g/dL and equal to or less than 10.5 g/dL.
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公开(公告)号：US20190186426A1
公开(公告)日：2019-06-20
申请号：US16221013
申请日：2018-12-14
Applicant: FUTABA INDUSTRIAL CO., LTD.
Inventor： Takuya Nakagawa , Masahito Hosoi , Kyohei Yamaguchi
IPC: F02M25/08 , B01D53/04 , B60K15/035
CPC classification number: F02M25/0854 , B01D53/0415 , B60K15/03504 , B60K2015/03514 , F02M25/0872
Abstract: A canister includes a charge port, a purge port, an atmosphere port, a main chamber, a sub chamber, activated carbon, and more activated carbon. The charge port takes in evaporated fuel. The purge port discharges the evaporated fuel. The atmosphere port is open to the atmosphere. The charge port and the purge port are connected to the main chamber. The sub chamber communicates with the main chamber. The atmosphere port is connected to the sub chamber. The activated carbon is stored in a main volume (Vmain) in the main chamber. The more activated carbon is stored in a sub volume (Vsub) in the sub chamber. A ratio of a length L in a gas flow direction to an equivalent diameter D in a section perpendicular to the gas flow direction is 2 or more for the sub chamber. An activated carbon volume ratio (Vmain/Vsub) is 5.5 to 7.
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