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公开(公告)号：US11174820B2
公开(公告)日：2021-11-16
申请号：US16681906
申请日：2019-11-13
摘要： A canister includes a plurality of activated carbon layers for adsorbing vaporized fuel and a purge pump for introducing purge air into the canister to cause purge gas containing the vaporized fuel to flow out of the canister. At least a part of the purge pump is placed in the chamber defined between the activated carbon layers.
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公开(公告)号：US10598138B2
公开(公告)日：2020-03-24
申请号：US15972413
申请日：2018-05-07
发明人： Hiroyuki Takahashi
摘要： A hermetically sealed fuel tank system includes a hermetically sealed fuel tank, a fuel pump configured to supply fuel from within the hermetically sealed fuel tank to an internal combustion engine, and a pressure regulating valve. The pressure regulating valve is disposed within the hermetically sealed fuel tank and is configured to regulate the fuel pressure of the fuel supplied from the fuel pump to the internal combustion engine. The pressure regulating valve includes a pressure regulating chamber and a backpressure chamber partitioned by a diaphragm. An ambient air introduction passage is fluidly connected to the backpressure chamber and is configured to introduce air from the atmosphere outside the fuel tank into the backpressure chamber.
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公开(公告)号：US11326561B2
公开(公告)日：2022-05-10
申请号：US17061838
申请日：2020-10-02
摘要： A canister includes a casing defining an adsorbent chamber. The casing includes a tank port in fluid communication with a fuel tank and an atmospheric port in fluid communication with the atmosphere. The canister includes at least three adsorbent sections arranged in series in the adsorbent chamber. The at least three adsorbent sections include a first adsorbent section proximate to the atmospheric port, a second adsorbent section disposed on a tank port side of the first adsorbent section, and a third adsorbent section disposed on a tank port side of the second adsorbent section. The first adsorbent section contains a first adsorbent, the second adsorbent section contains a second adsorbent, and the third adsorbent section contains a third adsorbent. An adsorption capacity of the first adsorbent is equal to or greater than an adsorption capacity of the second adsorbent. The adsorption capacity of the second adsorbent is greater than an adsorption capacity of the third adsorbent.
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公开(公告)号：US10941718B2
公开(公告)日：2021-03-09
申请号：US16668027
申请日：2019-10-30
摘要： An evaporated fuel processing apparatus preventing evaporated fuel from being discharged out of a canister when residual purge gas is made to return to the canister and processed is provided. In the apparatus, an ECU performs residual purge gas processing operation of returning the residual purge gas into the canister and processing during halt of purge control. This operation includes a residual purge gas pressure-feeding process of pressure-feeding the residual purge gas with the air into the canister by the purge pump in a state in which the atmospheric passage is shut off and the purge passage and the second bypass passages are opened and an air discharge process of discharging the air in the canister outside via the atmospheric passage by opening the atmospheric passage while the purge passage and the second bypass passage are shut off.
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公开(公告)号：US10907583B2
公开(公告)日：2021-02-02
申请号：US16785840
申请日：2020-02-10
IPC分类号： F02M25/08
摘要： A fuel vapor processing apparatus includes an adsorption passage has a first end connected to a fuel tank and a second end open to the atmosphere. The adsorption passage includes a first hollow chamber, a second hollow chamber, and a third hollow chamber. In addition, the adsorption passage includes a first adsorption chamber and a second adsorption chamber. The first adsorption chamber is positioned between the first hollow chamber and the second hollow chamber, and the second adsorption chamber is positioned between the second hollow chamber and the third hollow chamber. The adsorption chambers are configured to adsorb and desorb fuel vapor. A purge passage extends from the second hollow chamber toward an internal combustion engine. A bypass passage extends from the first hollow chamber to the third hollow chamber and bypasses the second hollow chamber. The bypass passage is provided with a shutoff valve that is open during a purge operation and is closed at other times.
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公开(公告)号：US10280883B2
公开(公告)日：2019-05-07
申请号：US15497347
申请日：2017-04-26
发明人： Hiroyuki Takahashi
摘要： A fuel supply device may include a pump case configured to accommodate a fuel pump, a reserve tank, and an elastic support member configured to elastically support the pump case with respect to the reserve tank. The elastic support member is connected to the pump case and the reserve tank via a first connection device and a second connection device, respectively. The first connection device is configured to pivotally connect the elastic support member to the pump case and/or the second connection device is configured to pivotally connect the elastic support member to the reserve tank.
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公开(公告)号：US20200256287A1
公开(公告)日：2020-08-13
申请号：US16787384
申请日：2020-02-11
摘要： A canister for an evaporated fuel processing device is proposed, and the canister may include: a casing including an atmospheric port, a tank port, and a purge port; a first adsorbent housed in the casing, facing the atmospheric port; a second adsorbent housed in the casing and facing the tank port and the purge port, and separated from the first adsorbent by a space; a second passage communicating the atmospheric port and the space and bypassing a first passage which extends from the atmospheric port through the first adsorbent to the space; and a switching valve configured to switch opening and closing of the second passage.
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公开(公告)号：US11015552B2
公开(公告)日：2021-05-25
申请号：US16553228
申请日：2019-08-28
IPC分类号： F02M25/08
摘要： An evaporated fuel processing apparatus includes a canister to collect vapor generated in a fuel tank, a purge passage to purge vapor into an intake passage from the canister, a purge pump provided in the purge passage, a first trifurcated valve in the purge passage between an exhaust port of the purge pump and an outflow port of the purge passage, a second trifurcated valve provided in the purge passage between an inflow port of the purge passage and an intake port of the purge pump, a first bypass passage between the purge passage upstream of the second trifurcated valve and the first trifurcated valve, and a second bypass passage between the purge passage downstream of the first trifurcated valve and the second trifurcated valve. Passages for the vapor and others are switched by switching the first trifurcated valve and the second trifurcated valve during operation of the purge pump.
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公开(公告)号：US10859039B2
公开(公告)日：2020-12-08
申请号：US16787384
申请日：2020-02-11
摘要： A canister for an evaporated fuel processing device is proposed, and the canister may include: a casing including an atmospheric port, a tank port, and a purge port; a first adsorbent housed in the casing, facing the atmospheric port; a second adsorbent housed in the casing and facing the tank port and the purge port, and separated from the first adsorbent by a space; a second passage communicating the atmospheric port and the space and bypassing a first passage which extends from the atmospheric port through the first adsorbent to the space; and a switching valve configured to switch opening and closing of the second passage.
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