# US 10,309,350 B2 · Air cleaner for internal combustion engine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,350 B2 - Document ID: US10309350B2 - Status: Granted - Kind: B2 - Application number: 15/862,122 - Filed: 2018-01-04 - Published: 2018-07-12 - Granted: 2019-06-04 - Earliest claimed: 2017-01-12 - Assignees: Toyota Boshoku Kabushiki Kaisha - Applicants: Toyota Boshoku Kabushiki Kaisha - Inventors: Ryusuke Kimura - Web page: https://patentgrep.com/patent/US10309350B2 ## CPC - F02M 35/0203: {by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges} - B01D 46/0036: {by adsorption or absorption} - B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces - B01D 46/521: {using folded, pleated material} - F02M 25/0854: {Details of the absorption canister} - F02M 35/0218: {acting by absorption or adsorption; trapping or removing vapours or liquids, e.g. originating from fuel} - F02M 35/02458: {consisting of multiple layers, e.g. coarse and fine filters; Coatings; Impregnations; Wet or moistened filter elements} - B01D 2253/102: Carbon - B01D 2259/4516: for fuel vapour recovery systems - B01D 2279/60: for the intake of internal combustion engines or turbines - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A housing of an air cleaner includes a housing body, which has a wall portion formed of a plastic molding and is configured such that an opening is formed in a part of the wall portion, and an adsorption sheet, which is fixed to a peripheral portion of the opening and closes the opening. The adsorption sheet includes an outer fiber molding, an inner fiber molding, which is provided at a position inward of the outer fiber molding, and an adsorbent, which is located between the outer fiber molding and the inner fiber molding and adsorbs fuel vapor of the internal combustion engine. ## Claims ### Claim 1 An air cleaner for an internal combustion engine, comprising: a housing having an inlet and an outlet; and a filter element provided in the housing, wherein the housing includes a housing body, which has a wall portion formed of a plastic molding and is configured such that an opening is formed in a part of the wall portion, and an adsorption sheet, which is fixed to a peripheral portion of the opening and closes the opening, and the adsorption sheet includes an outer fiber molding, an inner fiber molding, which is provided at a position inward of the outer fiber molding, and an adsorbent, which is located between the outer fiber molding and the inner fiber molding and adsorbs fuel vapor of the internal combustion engine, and the inner fiber molding includes a holding portion, which is opposed to the outer fiber molding at a distance, and the holding portion and the outer fiber molding hold the adsorbent in between, and an outer peripheral edge, which is located outward of the holding portion and is joined to the outer fiber molding. ### Claim 2 (depends on 1) The air cleaner for an internal combustion engine according to claim 1, wherein the housing includes a case, which has an opening and the inlet, and a cap, which has the outlet and an opening facing the opening of the case, the filter element is located between the opening of the case and the opening of the cap, and the cap includes a cap body, which has a wall portion formed of a plastic molding and is configured such that an opening is formed in a part of the wall portion, and the adsorption sheet. ### Claim 3 (depends on 1) The air cleaner for an internal combustion engine according to claim 1, wherein an outer peripheral edge of the outer fiber molding is wrapped by the peripheral portion of the opening in the housing body, so that the outer fiber molding is fixed to the housing body, and a packing density of fibers of the outer peripheral edge of the outer fiber molding is set to be lower than a packing density of fibers of other part of the outer fiber molding that is not wrapped by the peripheral portion. ### Claim 4 (depends on 3) The air cleaner for an internal combustion engine according to claim 3, wherein the outer peripheral edge of the inner fiber molding is joined to a part of the outer fiber molding that is located further inward in the opening in the housing body than the outer peripheral edge of the outer fiber molding, which is wrapped by the peripheral portion of the opening in the housing body. ### Claim 5 (depends on 1) The air cleaner for an internal combustion engine according to claim 1, wherein the outer peripheral edge of the outer fiber molding is joined to an outer surface of the peripheral portion of the opening in the housing body. ### Claim 6 (depends on 1) The air cleaner for an internal combustion engine according to claim 1, wherein an inner surface of the inner fiber molding is aligned with or located outward of an inner surface of a part of the wall portion of the housing body that is adjacent to the inner fiber molding.