# US 10,865,748 B2 · Adapter filter fixing type air cleaner and intake system including the same

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- Number: US 10,865,748 B2
- Document ID: US10865748B2
- Status: Granted
- Kind: B2
- Application number: 15/990,045
- Filed: 2018-05-25
- Published: 2019-03-14
- Granted: 2020-12-15
- Earliest claimed: 2017-09-14
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Seong-Youn Kwak; Won-Seop Choi; Ju-Ho Han; Yong-Gyo Seo; Sung-Hyuk Yoon
- Web page: https://patentgrep.com/patent/US10865748B2

## CPC

- F02M 35/02416: {Fixing, mounting, supporting or arranging filter elements; Filter element cartridges}
- B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)}
- B01D 46/2403: {characterised by the physical shape or structure of the filtering element}
- B01D 46/2411: {Filter cartridges}
- F02M 35/02441: {Materials or structure of filter elements, e.g. foams}
- F02M 35/02483: {Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements}
- F02M 35/04: specially arranged with respect to engine {, to intake system or specially adapted to vehicle}; Mounting thereon {; Combinations with other devices (combined with silencers F02M35/14)}
- B01D 2265/05: Special adapters for the connection of filters or parts of filters
- B01D 2277/20: Inclined, i.e. forming an angle of between 0° and 90°
- 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

An air cleaner is provided. The air cleaner includes an air cleaner body and air cleaner cover that are coupled to each other to form an internal space for mounting a filter and that are clamped and separated through a cover clamp. The filter purifies air that is introduced through a duct inlet into air which is to be discharged through a hose outlet. A filter fixer is formed in the internal space to seat the filter and forms a filter holding force to block swaying of the filter. Additionally, a filter adapter is mounted into or detached from the internal space and is inserted into the internal space to form a filter fixing force for fixing the filter.

## Claims

### Claim 1

An air cleaner, comprising
an air cleaner body and air cleaner cover coupled to each other to form an internal space for mounting a filter, and clamped to or separated from each other through a cover clamp, the filter configured to purify air introduced through a duct inlet into air which is to be discharged through a hose outlet;
a filter fixer disposed in the internal space to seat the filter therein, and generating a filter holding force to block swaying of the filter in the internal space; and
a filter adapter mounted into or detached from the internal space, and inserted into the internal space to generate a filter fixing force for fixing the filter in the internal space,
wherein the filter is a circular filter having a cylindrical frame structure,
wherein the filter is positioned in the internal space of the air cleaner body and the air cleaner cover with an upward inclination arrangement in which a front side of the filter is raised approximately to the hose outlet and a rear side of the filter is lowered toward the duct inlet,
wherein the filter fixer includes an adapter guide member formed at the rear side of the filter to guide an insertion path of the filter adapter, and a filter holding member formed at the front and rear sides and left and right sides of the filter to generate the filter holding force, wherein the filter adapter is fitted to the adapter guide member and generates the filter fixing force,
wherein the filter fixer supports the filter through the filter holding force to maintain the upward inclination arrangement in the internal space, and the filter adapter generates the filter fixing force at the rear side of the filter, and
wherein the adapter guide member is inclined to an inner wall of the air cleaner body and formed on the inner wall of the air cleaner body.

### Claim 2 (depends on 1)

The air cleaner of claim 1, wherein the filter is formed of hard urethane.

### Claim 3 (depends on 1)

The air cleaner of claim 1, wherein the filter adapter is mounted into or separated from the internal space of the air cleaner body to be coupled with the air cleaner cover.

### Claim 4 (depends on 1)

The air cleaner of claim 1, wherein the filter adapter is formed in a wedge shape to generate the filter fixing force for pressing the filter in the internal space.

### Claim 5 (depends on 1)

The air cleaner of claim 1, wherein the filter holding member includes:
a filter support member positioned at the rear side of the filter;
a filter seating member positioned at the front side of the filter; and
a filter positioning member positioned at the left and right of the filter,
wherein the filter support member, the filter seating member, and the filter positioning member are formed in the air cleaner body.

### Claim 6 (depends on 5)

The air cleaner of claim 5, wherein the filter support member protrudes from the bottom surface of the internal space, the filter seating member protrudes from the inner wall of the internal space, and the filter support member and the filter seating member support the rear and front sides of the filter in the upward inclination arrangement.

### Claim 7 (depends on 5)

The air cleaner of claim 5, wherein the filter positioning member includes:
left and right filter holders that protrude from the inner wall of the internal space to face each other,
wherein the left and right filter holders support the left and right sides of the filter in the upward inclination arrangement.

### Claim 8 (depends on 5)

The air cleaner of claim 5, wherein the filter holding member further includes:
a filter pushing member to generate the filter holding force at the top of the filter,
wherein the filter pushing member is formed on the air cleaner cover.

### Claim 9 (depends on 8)

The air cleaner of claim 8, wherein the filter pushing member includes:
an adapter pusher and a filter pusher that protrude from the inner wall of the air cleaner cover to face each other,
wherein the adapter pusher pushes the upper portion of the filter adapter fitted into the adapter guide member, and
wherein the filter pusher is formed at the front side of the filter and pushes the upper portion of the filter.

### Claim 10 (depends on 1)

The air cleaner of claim 1, wherein the filter adapter includes:
an adapter body fitted into the adapter guide member and generating the filter fixing force to press a rear surface of the filter; and
a filter fixing rib that protrudes from the adapter body and is fitted into the adapter guide member to be in contact with the rear surface of the filter.

### Claim 11 (depends on 10)

The air cleaner of claim 10, wherein the filter adapter includes:
left and right insertion protrusions that protrude from the adapter body with a space provided therebetween,
wherein the left and right insertion protrusions are inserted into left and right insertion channels of the adapter guide member and hold the position of the adapter body.

### Claim 12 (depends on 1)

The air cleaner of claim 1, wherein a filter flange protrudes from the inner wall of the internal space at a connection between the filter and the hose outlet to connect the filter, and a filter strap is fitted to the filter flange to seal the filter flange.

### Claim 13 (depends on 1)

The air cleaner of claim 1, wherein a housing strap seals the coupling surface between the air cleaner body and the air cleaner cover to seal the internal space, and the coupling surface includes strap channels to which the housing strap is fitted.

### Claim 14 (depends on 1)

The air cleaner of claim 1, wherein the air cleaner body includes:
a hose housing and a duct housing that are welded to form the internal space,
wherein the hose housing includes the hose outlet and is coupled to the air cleaner cover, and
wherein the duct housing includes the duct inlet and a bottom surface.

### Claim 15

An intake system, comprising:
an air cleaner including:
an air cleaner body having a hose housing and a duct housing that are coupled to form an internal space, wherein the hose housing includes a hose outlet from which clean air is discharged and the duct housing includes a duct inlet into which outside air is introduced;
an air cleaner cover coupled to the hose housing to form the internal space;
a cylindrical filter mounted in the internal space with an upward inclination arrangement in which a front side of the filter is raised approximately to the hose outlet and a rear side of the filter is lowered, and the filter is configured to change the outside air into the clean air by filtering foreign matters of the outside air;
a filter fixer that generates a filter holding force to support the filter in the internal space;
a filter adapter that generates a filter fixing force to fix the filter in the internal space;
a housing strap installed on a coupling surface between the air cleaner body and the air cleaner cover to seal the internal space;
a cover clamp configured to clamp the air cleaner body with the air cleaner cover; and
a filter strap installed at a connection between the filter and the hose housing to seal the filter,
wherein the filter fixer includes an adapter guide member formed at the rear side of the filter to guide an insertion path of the filter adapter, and a filter holding member formed at the front and rear sides and left and right sides of the filter to generate the filter holding force, wherein the filter adapter is fitted to the adapter guide member and generates the filter fixing force,
wherein the filter fixer supports the filter through the filter holding force to maintain the upward inclination arrangement in the internal space, and the filter adapter generates the filter fixing force at the rear side of the filter, and
wherein the adapter guide member is inclined to an inner wall of the air cleaner body and formed on the inner wall of the air cleaner body;
an intake duct through which the outside air flows;
an intake shield configured to filter foreign matters of the outside air flowing through the intake duct; and
an intake hose through which the clean air flows from the intake shield to an engine.

### Claim 16 (depends on 15)

The intake system of claim 15, wherein the intake duct includes:
a duct body through which the outside air flows,
wherein the duct body includes a connection hook from which the outside air escapes, and
wherein the connection hook is fitted to a connecting connector that surrounds the duct inlet and fixes a connection between the intake duct and the duct housing.

### Claim 17 (depends on 15)

The air cleaner of claim 15, wherein the intake duct includes a fixing hook formed on the duct body through which the outside air flows, and the fixing hook is fitted to a position protrusion formed on the hose housing and fixes a connection between the intake duct and the hose housing.