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US 12,685,959 B2Granted
Canister
AssigneeFutaba Industrial Co., Ltd.
InventorMasahito Hosoi
Life of this patent
Estimating the term…
Abstract
A canister comprises an outer case, an inner case arranged inside the outer case, and a first adsorption chamber arranged in the inner case, a second adsorption chamber arranged in the inner case between the first adsorption chamber and an atmosphere port, a first adsorbent accommodated in the first adsorption chamber, a second adsorbent accommodated in the second adsorption chamber, and a plate-shaped filter arranged between the second adsorbent and the atmosphere port. The filter comprises a first plate surface in contact with the second adsorbent, a second plate surface in contact with the outer case, and a side surface connecting the first plate surface and the second plate surface to each other. At least one of the second plate surface or the side surface comprises an open portion spaced from both the inner case and the outer case.
Claims15
A canister for adsorbing and desorbing evaporated fuel generated in a fuel tank of a vehicle, the canister comprising:
- an outer case comprising a charge port configured to take in the evaporated fuel, a purge port configured to discharge the evaporated fuel, and an atmosphere port open to an atmosphere;
- an inner case arranged inside the outer case and comprising an internal space connected to the atmosphere port directly or through another chamber;
- a first adsorption chamber arranged in the internal space of the inner case;
- a second adsorption chamber arranged between the first adsorption chamber and the atmosphere port in a flow path of the evaporated fuel in the internal space of the inner case;
- a first adsorbent accommodated in the first adsorption chamber;
- a second adsorbent accommodated in the second adsorption chamber;
- and
- a filter having a plate shape and arranged between the second adsorbent and the atmosphere port in the flow path of the evaporated fuel,
- wherein a gas flow direction in the second adsorption chamber intersects a gas flow direction in the first adsorption chamber,
- wherein the filter comprises:
- a first plate surface in contact with the second adsorbent;
- a second plate surface at least a part of which is in contact with the outer case;
- and
- a side surface connecting the first plate surface and the second plate surface to each other,
- wherein at least one of the second plate surface or the side surface comprises an open portion spaced from both the inner case and the outer case,
- wherein the outer case comprises a rib extending in a direction parallel to the second plate surface of the filter,
- wherein the second plate surface comprises:
- a contact portion in contact with the rib;
- and
- the open portion,
- wherein the rib extends in a direction parallel to an insertion direction of the inner case into the outer case, and
- wherein the rib comprises a guide surface inclined to guide an insertion of the inner case into the outer case.
19 more elements
A canister for adsorbing and desorbing evaporated fuel generated in a fuel tank of a vehicle, the canister comprising:
- an outer case comprising a charge port configured to take in the evaporated fuel, a purge port configured to discharge the evaporated fuel, and an atmosphere port open to an atmosphere;
- an inner case arranged inside the outer case and comprising an internal space connected to the atmosphere port directly or through another chamber;
- a first adsorption chamber arranged in the internal space of the inner case;
- a second adsorption chamber arranged between the first adsorption chamber and the atmosphere port in a flow path of the evaporated fuel in the internal space of the inner case;
- a first adsorbent accommodated in the first adsorption chamber;
- a second adsorbent accommodated in the second adsorption chamber;
- and
- a filter having a plate shape and arranged between the second adsorbent and the atmosphere port in the flow path of the evaporated fuel,
- wherein a gas flow direction in the second adsorption chamber intersects a gas flow direction in the first adsorption chamber,
- wherein the filter comprises:
- a first plate surface in contact with the second adsorbent;
- a second plate surface at least a part of which is in contact with the outer case;
- and
- a side surface connecting the first plate surface and the second plate surface to each other,
- wherein at least one of the second plate surface or the side surface comprises an open portion spaced from both the inner case and the outer case,
- wherein the outer case comprises a rib extending in a direction parallel to the second plate surface of the filter,
- wherein the second plate surface comprises:
- a contact portion in contact with the rib;
- and
- the open portion, and
- wherein the outer case comprises a holding portion that holds the inner case together with the rib.
18 more elements
A canister for adsorbing and desorbing evaporated fuel generated in a fuel tank of a vehicle, the canister comprising:
- an outer case comprising a charge port configured to take in the evaporated fuel, a purge port configured to discharge the evaporated fuel, and an atmosphere port open to an atmosphere;
- an inner case arranged inside the outer case and comprising an internal space connected to the atmosphere port directly or through another chamber;
- a first adsorption chamber arranged in the internal space of the inner case;
- a second adsorption chamber arranged between the first adsorption chamber and the atmosphere port in a flow path of the evaporated fuel in the internal space of the inner case;
- a first adsorbent accommodated in the first adsorption chamber;
- a second adsorbent accommodated in the second adsorption chamber;
- and
- a filter having a plate shape and arranged between the second adsorbent and the atmosphere port in the flow path of the evaporated fuel,
- wherein a gas flow direction in the second adsorption chamber intersects a gas flow direction in the first adsorption chamber,
- wherein the filter comprises:
- a first plate surface in contact with the second adsorbent;
- a second plate surface at least a part of which is in contact with the outer case;
- and
- a side surface connecting the first plate surface and the second plate surface to each other,
- wherein at least one of the second plate surface or the side surface comprises an open portion spaced from both the inner case and the outer case,
- wherein the outer case comprises a rib extending in a direction parallel to the second plate surface of the filter,
- wherein the second plate surface comprises:
- a contact portion in contact with the rib;
- and
- the open portion,
- wherein the outer case comprises a main body into which the inner case is inserted,
- wherein the rib comprises:
- a support portion in contact with the second plate surface of the filter;
- and
- a leg portion connecting the main body and the support portion to each other, and
- wherein a width of the support portion is larger than a width of the leg portion.
23 more elements
Dependencies are inferred from the claim text.