Advanced disposable air cleaner
First Claim
1. An air cleaner for use with a rigid engine air intake tube, said air cleaner comprising:
- a. an outer shell having first and second ends;
b. a tubular filter element located within said outer shell and defining a space therebetween, said filter element having first and second ends and an inner opening;
c. a tubular nozzle element located in said inner opening, having first and second ends, comprising a perforated filter element support portion at said first end, a generally centrally located throat portion, and a noise suppressing portion converging from a nozzle element outlet at said second end to said throat;
d. a first end cap fixed to and forming a fluid-tight junction with each of said first ends;
e. a second end cap affixed to and forming a fluid-tight junction with each of said second ends, said second end cap having an aperture with a periphery aligned with said nozzle element outlet; and
f. at least one air intake aperture in said air cleaner located to place said space between said shell and said filter element in fluid communication with air outside the air cleaner.
1 Assignment
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Accused Products
Abstract
An air cleaner with an integrated nozzle element comprised of a perforated portion at one end, a generally centrally located throat and a noise suppressing portion from the second end to the throat. The nozzle element is located within the inner opening of the air cleaner'"'"'s tubular filter element. The perforated portion is arranged and configured to be the same size and shape as the inner opening to provide support for the tubular filter element, the throat is arranged and configured to provide the required restriction to create a specified negative engine crankcase pressure, and the noise suppressing portion is arranged and configured to provide the required attenuation of engine intake noise passing through the air cleaner.
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Citations
14 Claims
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1. An air cleaner for use with a rigid engine air intake tube, said air cleaner comprising:
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a. an outer shell having first and second ends; b. a tubular filter element located within said outer shell and defining a space therebetween, said filter element having first and second ends and an inner opening; c. a tubular nozzle element located in said inner opening, having first and second ends, comprising a perforated filter element support portion at said first end, a generally centrally located throat portion, and a noise suppressing portion converging from a nozzle element outlet at said second end to said throat; d. a first end cap fixed to and forming a fluid-tight junction with each of said first ends; e. a second end cap affixed to and forming a fluid-tight junction with each of said second ends, said second end cap having an aperture with a periphery aligned with said nozzle element outlet; and f. at least one air intake aperture in said air cleaner located to place said space between said shell and said filter element in fluid communication with air outside the air cleaner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In an engine air cleaner of the type having a filter element with an inner opening, enclosed within an outer shell, two end caps and at least one aperture to allow air to enter between said shell and said filter element, and an aperture to allow clean air to exit said air cleaner from said inner opening of said filter element, the improvement comprising:
means supporting a nozzle element within said inner opening of said filter element, said nozzle element comprising a noise suppressing portion converging away from a nozzle element outlet. - View Dependent Claims (10, 11)
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12. In an engine air cleaner of the type having a shell, a tubular filter element with an inner opening enclosed within said outer shell, and two end caps and an aperture to allow air to enter between said shell and said filter element, and an aperture to allow clean air to exit said air cleaner from said inner opening of said filter element, the improvement comprising:
- means supporting a nozzle element within said inner opening of said filter element, said nozzle element comprising a noise suppressing portion converging away from a nozzle element outlet to a generally centrally located throat.
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13. In an engine air cleaner of the type having a filter element with an inner opening, enclosed within an outer shell, two end caps and at least one aperture to allow air to enter between said shell and said filter element, and an aperture to allow clean air to exit said air cleaner from said inner opening of said filter element, the improvement comprising:
a tubular nozzle element within said inner opening of said filter element, said nozzle element comprising a filter element support portion, a generally centrally located throat and a noise suppressing portion converging away from the nozzle element outlet to said throat.
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14. An air cleaner for use with a rigid engine air intake tube, said air cleaner comprising:
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a. a tubular nozzle element having first and second ends, comprising a perforated portion at said first end, an imperforate generally centrally located portion converging to a throat and an imperforate noise suppressing portion converging from the nozzle element outlet at said second end to said throat; b. a tubular filter element having first and second ends, and an inner opening, said tubular filter element located concentrically around said tubular nozzle element; c. an outer shell having first and second ends, said outer shell being located concentrically around said tubular filter element and defining a space between said outer shell and said tubular filter element; d. a first end cap fixed to and forming a fluid-tight junction with each of said first ends; e. a second end cap affixed to and forming a fluid-tight junction with each of said second ends, said second end cap having an aperture with a periphery aligned with said nozzle element outlet; f. at least one intake aperture in at least one of said end caps located to place said defined space in fluid communication with air outside the air cleaner; and g. a tubular flange extending from said second end cap at said periphery of said second end cap aperture, adapted to receive the intake tube.
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Specification