Panel type air filter element with integral baffle
First Claim
1. A filter element for use in an internal combustion engine, comprising:
- a) a seal bead defining an outer perimeter of the filter element and at least two inner areas within the outer perimeter;
b) filter media disposed within one of the at least two inner areas; and
c) a baffle disposed within another of the at least two inner areas.
1 Assignment
0 Petitions
Accused Products
Abstract
An air filter and corresponding filter element for use in an internal combustion engine are disclosed. The filter element has a seal bead made of an elastomeric material that forms the frame of the filter element. A pleat block, made of a filter media, is molded into the seal bead in a first area of the filter element and a baffle is located in a second area of the filter element to protect the pleat block from wetting. A channel is formed in one side of the seal bead which allows the filter element to be retained during assembly without the use of fasteners and a surface is formed opposite the seal bead that in conjunction with the channel seals the filter element within the air filter when the air filter is fully assembled. The air filter has an intake silencing chamber that is located to receive outside air before it is provided to the pleat block and a sealed flow path is created from the intake silencing chamber to the pleat block by a third area of the filter element.
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Citations
24 Claims
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1. A filter element for use in an internal combustion engine, comprising:
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a) a seal bead defining an outer perimeter of the filter element and at least two inner areas within the outer perimeter;
b) filter media disposed within one of the at least two inner areas; and
c) a baffle disposed within another of the at least two inner areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A filter element for use in an internal combustion engine, comprising:
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a) a seal bead defining an outer perimeter of the filter element and at least three inner areas within the outer perimeter, wherein a channel is formed in a first side of at least a portion of the seal bead for receiving a sealing rib of a filter housing and retaining the filter element;
b) a pleat block molded into the seal bead within one of the at least three inner areas;
c) a screen molded into the seal bead within the same inner area as the pleat block;
d) a baffle molded into the seal bead within another of the at least three inner areas; and
whereine) the inner area not having disposed therein the pleat block or the baffle is substantially clear of obstructions and creates a sealed flow path for unfiltered air.
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12. An air filter assembly for an internal combustion engine, comprising:
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a) an air filter housing having a base and a cover, the air filter housing defining an air flow path from an air inlet to a carburetor inlet;
b) a first sealing rib formed on the base;
c) a second sealing rib formed on the cover;
d) a filter element, disposed within the air filter housing, including a seal bead defining an outer perimeter of the filter element, which engages the first sealing rib and the second sealing rib to seal the air flow path in the air filter housing, and further defining at least two inner areas within the outer perimeter;
e) filter media disposed within on of the at least two inner areas; and
f) a baffle, disposed within another of the at least two inner areas, facing the carburetor inlet. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An air filter assembly for an internal combustion engine, comprising:
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a) an air filter housing having a base and a cover, the air filter housing defining an air flow path from an air inlet through an intake silencing chamber to a carburetor inlet;
b) a first sealing rib formed on the base;
c) a second sealing rib formed on the cover;
d) a filter element, disposed with the air filter housing in the air flow path downstream of the intake silencing chamber, including a seal bead defining an outer perimeter of the filter element, which engages the first sealing rib and the second sealing rib to seal the air flow path in the air filter housing, and further defining at least three inner areas within the outer perimeter;
e) a pleat block molded into the seal bead within a first of the at least three inner areas;
f) a screen molded into the seal bead within the same inner area as the filter media; and
g) a baffle molded into the seal bead within a second of the at least three inner areas, facing the carburetor inlet;
whereinh) a channel is formed in a first side of at least a portion of the seal bead for receiving the first sealing rib and retaining the filter element; and
i) a first portion of the intake silencing chamber is disposed in the cover and a second portion of the intake silencing chamber is disposed in the base, wherein the the third of the at least three inner areas is substantially clear of obstructions and portion of the seal bead defining the third inner area engages between the first and second portions of the intake silencing chamber.
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Specification