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US 8,404,029 B2Granted
Crankcase ventilation filter arrangments; components; and, methods
AssigneeDonaldson Company, Inc.
InventorsThomas Lundgren, Daniel Adamek, Wade Mosset
Life of this patent
Estimating the term…
Abstract
A crankcase ventilation filter assembly and components therefor, are described. In an example arrangement, the crankcase ventilation filter assembly is configured to be serviced from either the top or the bottom. A rotational indexing arrangement is to ensure appropriate orientation of an internally received filter cartridge, and other components of the arrangement are provided. Methods of assembly, servicing and use are described.
Claims52
A crankcase ventilation filter cartridge comprising:
- (a) first and second, opposite, end members;
- and,
- (b) filter media positioned between the first and second, opposite, end members and surrounding an open filter interior;
- (c) the first end member comprising an upper member having an aperture therethrough and including a seal member therearound;
- and,
- (d) the second member including a D-shaped projection thereon projecting in a direction away from the media and the first end member.
3 more elements
A crankcase ventilation filter cartridge comprising:
- (a) first and second, opposite, end members;
- and,
- (b) filter media positioned between the first and second, opposite, end members and surrounding an open filter interior;
- (c) the first end member comprising an upper member having an aperture therethrough and including a seal member therearound;
- and,
- (i) the seal member defining an elliptical seal perimeter;
- (d) the second member being closed and including a closed receiver projection thereon projecting toward the first end member at least 5% of a distance between opposite ends of the media;
- (i) the receiver projection having a non-circular, inner, cross-sectional shape;
- and
- (e) the second member including a D-shaped projection thereon.
7 more elements
A crankcase ventilation filter cartridge comprising:
- (a) a media support including first and second end members with a permeable support tube extending therebetween;
- (ii) the end members and support tube comprising a single, integral, molded piece;
- (b) filter media positioned around the support tube and between the first and second end members;
- and,
- (c) a housing seal member positioned around the first end member at a location entirely above the filter media.
2 more elements
A crankcase ventilation filter assembly comprising:
- (a) a housing including:
- a gas flow inlet arrangement;
- a gas flow outlet arrangement;
- and, having a housing central body section;
- a housing top;
- and, a housing bottom cover;
- (i) the housing central body section including a sidewall defining an interior and first and second, opposite, open, ends;
- (A) the housing central body section defining a filter cartridge sealing surface;
- (ii) the housing top being removably secured over the first open end of the housing body;
- and,
- (ii) the housing bottom being removably secured over the second open end of the housing body;
- (A) the housing bottom including a liquid drain therein;
- (b) a filter cartridge removably positioned within the housing;
- (i) the filter cartridge including a housing seal thereon removably sealed to the filter cartridge sealing surface of the housing body;
- (ii) the filter cartridge being sized to be removable from a remainder of the housing, when the housing top is separated from the housing body, by passage of the filter cartridge through the first open end of the housing body;
- and,
- (iii) the filter cartridge also being sized to be removable from a remainder of the housing, when the housing bottom is separated from the housing body, by passage of the filter cartridge through the second open end of the housing body;
- (c) the housing top including a first member of a housing top-to-housing body rotational indexing arrangement thereon;
- and,
- (d) the housing central body section including a second member of a housing top-to-housing body rotational indexing arrangement thereon;
- (i) the first and second members of the housing top-to-housing body rotational indexing arrangement forming a housing top-to-housing body rotational indexing arrangement configured such that the housing top can only be operably installed on the housing body in a single, selected, rotational orientation.
18 more elements
A crankcase ventilation filter assembly comprising:
- (a) a housing including:
- a gas flow inlet arrangement and a gas flow outlet arrangement and having a housing central body section;
- a housing top;
- and a housing bottom;
- (i) the housing central body section including a sidewall defining an interior and first and second, opposite, ends;
- (A) the housing central body section defining a filter cartridge sealing surface;
- (ii) the housing top being removably secured over the first open end of the housing body;
- and,
- (iii) the housing bottom being removably secured over the second open end of the housing body;
- (A) the housing bottom including a central liquid drain therein;
- (b) a filter cartridge removably positioned within the housing;
- (i) filter cartridge including a housing seal member thereon removably sealed to the filter cartridge sealing surface of the housing body;
- (ii) the filter cartridge including a first member of a filter cartridge-to-housing bottom rotational indexing arrangement thereon;
- (c) the housing bottom including a second member of a filter cartridge-to-housing bottom rotational indexing arrangement;
- (i) the first and second members of a filter cartridge-to-housing bottom rotational indexing arrangement forming a filter cartridge-to-housing bottom rotational indexing arrangement configured to provide that the housing bottom and filter cartridge can only operably engage in a single, relative, rotational alignment.
12 more elements
A crankcase ventilation filter assembly comprising:
- (a) a housing including:
- a housing body, a housing top;
- and, a housing bottom;
- (i) the housing body having an interior and defining a filter cartridge sealing surface;
- (ii) the housing bottom including a liquid drain aperture therethrough;
- (iii) the housing bottom including a filter cartridge guide projection thereon, projecting toward the housing top;
- (A) the guide projection defining a non-circular, perimeter, cross-section;
- (b) a filter cartridge operably received within the housing;
- (i) the filter cartridge including a closed lower end member with a closed receiver therein, projecting into a filter cartridge interior;
- the central receiver having a non-circular inner shape;
- (ii) the guide projection extending into the closed central receiver;
- the central closed receiver being configured to receive the guide projection therein, in only one, selected, rotational orientation;
- and, (iii) the filter cartridge including a seal member thereon removably sealed to the filter cartridge sealing surface.
10 more elements
A method of assembling a crankcase ventilation filter assembly;
- the method comprising steps of:
- (a) providing a housing including:
- a housing body with a gas flow inlet arrangement and a gas flow outlet arrangement therethrough;
- a removable housing top having a first member of a housing top-to-housing body rotational indexing arrangement thereon to rotationally index the housing top to the housing body;
- and, a removable housing bottom having a first member of a housing bottom-to-housing body rotational indexing arrangement thereon to rotationally index the housing bottom to the housing body in no more than two rotational orientations;
- (i) the housing bottom having a liquid drain aperture therethrough;
- (b) removing a selected one of the housing top and housing bottom from the housing body;
- (c) inserting a crankcase ventilation filter cartridge into the housing body;
- and,
- (d) replacing the selected one of the housing top and housing bottom on the housing body.
7 more elements
A crankcase ventilation filter assembly comprising:
- (a) a housing including:
- a gas flow inlet arrangement;
- a gas flow outlet arrangement;
- and, having a housing central body section;
- a housing top;
- and, a housing bottom cover;
- (i) the housing central body section including a sidewall defining an interior and first and second, opposite, open, ends;
- (A) the housing central body section defining a filter cartridge sealing surface;
- (ii) the housing top being removably secured over the first open end of the housing body;
- and,
- (ii) the housing bottom being removably secured over the second open end of the housing body;
- (A) the housing bottom including a liquid drain therein;
- (b) a filter cartridge removably positioned within the housing;
- (i) the filter cartridge including a housing seal thereon removably sealed to the filter cartridge sealing surface of the housing body;
- (ii) the filter cartridge being sized to be removable from a remainder of the housing, when the housing top is separated from the housing body, by passage of the filter cartridge through the first open end of the housing body;
- and,
- (iii) the filter cartridge also being sized to be removable from a remainder of the housing, when the housing bottom is separated from the housing body, by passage of the filter cartridge through the second open end of the housing body;
- (c) the housing bottom including a first member of a housing bottom-to-housing body rotational indexing arrangement thereon;
- and,
- (d) the housing central body section including a second member of a housing bottom-to-housing body rotational indexing arrangement thereon;
- (i) the first and second members of the housing bottom-to-housing body rotational indexing arrangement forming a housing bottom-to-housing body rotational indexing arrangement configured such that the housing bottom can only be operably installed on the housing central body section in no more than two, selected, rotational orientations.
18 more elements
A crankcase ventilation filter assembly comprising:
- (a) a housing including:
- a gas flow inlet arrangement;
- a gas flow outlet arrangement;
- and, having a housing central body section;
- a housing top;
- and, a housing bottom cover;
- (i) the housing central body section including a sidewall defining an interior and first and second, opposite, open, ends;
- (A) the housing central body section defining a filter cartridge sealing surface;
- (ii) the housing top being removably secured over the first open end of the housing body;
- and,
- (ii) the housing bottom being removably secured over the second open end of the housing body;
- (A) the housing bottom including a liquid drain therein;
- (b) a filter cartridge removably positioned within the housing;
- (i) the filter cartridge including a housing seal thereon removably sealed to the filter cartridge sealing surface of the housing body;
- (ii) the filter cartridge being sized to be removable from a remainder of the housing, when the housing top is separated from the housing body, by passage of the filter cartridge through the first open end of the housing body;
- and,
- (iii) the filter cartridge also being sized to be removable from a remainder of the housing, when the housing bottom is separated from the housing body, by passage of the filter cartridge through the second open end of the housing body;
- (c) the housing central body section including a second member of a housing top-to- housing body rotational indexing arrangement thereon;
- (d) the filter cartridge first end member including at least one upwardly projecting arcuate flange thereon, with an arcuate gap therethrough, the upwardly projecting arcuate flange having an arcuate extension of at least 30° and not more than 80° ;
- (e) the filter cartridge including a first member of a filter cartridge-to-housing body indexing arrangement thereon;
- and,
- (f) the housing central body section including a second member of a filter cartridge-to-housing body rotational indexing arrangement thereon;
- (i) the first and second members of a filter cartridge-to-housing body rotational indexing arrangement forming a filter cartridge-to-housing top rotational indexing arrangement configured to only operably engage when the filter cartridge and housing central body section are aligned no more than two, selected, rotational alignments.
20 more elements
A crankcase ventilation filter cartridge comprising:
- (a) first and second, opposite, end members;
- and,
- (b) filter media positioned between the first and second, opposite, end members and surrounding an open filter interior;
- (c) the first end member comprising an upper member having a non-circular outer perimeter and an aperture therethrough and including a seal member therearound;
- and,
- (d) the second end member including;
- (i) a non-circular projection thereon projecting in a direction away from the first end member;
- the projection having a straight side and an opposite curved side;
- and,
- (ii) a closed receiver projection projecting toward the first end member at least 5% of a distance between opposite ends of the media.
7 more elements
A crankcase ventilation filter cartridge comprising:
- (a) first and second, opposite, end members;
- (i) the first end member comprising an upper member having an aperture therethrough and a non-circular outer perimeter including a seal member therearound defining a non-circular seal perimeter;
- and,
- (ii) the first end member having an elliptical perimeter shape defining a longest central axis and a short axis that bisects the longest central axis at right angles thereto to define an ellipse center;
- (b) filter media positioned between the first and second, opposite, end members and surrounding an open filter interior;
- (c) the filter media surrounding an open filter interior to define a longitudinal media central axis orthogonal to the longest central axis and the short axis of the elliptical perimeter of the first end member;
- (i) the filter media being positioned such that the longitudinal axis of the filter media is eccentrically positioned relative to the ellipse center of the first end member;
- and,
- (ii) the second end member having a receiver projection therein projecting into the open filter interior and toward the first end member.
6 more elements
A crankcase ventilation filter cartridge comprising:
- (a) first and second, opposite, end members;
- and,
- (b) filter media positioned between the first and second, opposite, end members and surrounding an open filter interior to define a central axis;
- (c) the first end member comprising an upper member having an aperture therethrough and having a non-circular outer perimeter including a seal member therearound defining a non-circular seal perimeter;
- and,
- (d) the second end member having a receiver projection therein projecting into the open filter interior and toward the first end member;
- the receiver projection being offset from the central axis.
4 more elements
Dependencies are inferred from the claim text.