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US 7,547,350 B2Granted
Air induction system with hydrocarbon trap assembly
AssigneeMiniature Precision Components, Inc.
InventorsDouglas J Callahan, Mark T Van de Bogert
Life of this patent
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Abstract
A hydrocarbon trap that includes a sheet paper element and a plurality of fingers. The paper element is at least partially formed of a material capable of adsorbing and desorbing gaseous hydrocarbons. The paper element is arranged into a plurality of adjacent sheet members. The fingers are disposed between and support adjacent pairs of the sheet members so that each adjacent pair of the sheet members forms a flow channel. A method for filtering gaseous hydrocarbons from an air flow is also provided.
Claims52
A combination comprising:
- a sheet paper element that is at least partially formed of a material capable of adsorbing and desorbing gaseous hydrocarbons, the paper element having a plurality of adjacent sheet members;
- and
- a plurality of fingers disposed between and supporting adjacent pairs of the sheet members so that each adjacent pair of the sheet members forms a flow channel.
A combination comprising:
- a housing;
- and
- an air cleaner assembly coupled to the housing, the air cleaner assembly including a support and a hydrocarbon adsorbent paper, the support including a plurality of comb members, each comb member having a plurality of teeth, the hydrocarbon adsorbent paper being woven through the teeth of the comb members so as to define a plurality of supported flow channels.
A method comprising:
- providing a housing;
- installing a hydrocarbon adsorbent paper element in the housing such that the hydrocarbon adsorbent paper element at least partially defines a plurality of flow channels;
- and
- adsorbing hydrocarbons into the hydrocarbon adsorbent paper element from air passing in a first direction through the flow channels;
- wherein the step of installing the hydrocarbon adsorbent paper element includes weaving a hydrocarbon adsorbent paper through a plurality of teeth.
2 more elements
A vehicle powertrain comprising:
- an internal combustion engine having an intake manifold:
- an air filter housing coupled to the internal combustion engine;
- and
- a duct assembly having a duct structure and a hydrocarbon trap assembly, the duct structure coupling the air filter housing and the intake manifold in fluid connection, the hydrocarbon trap assembly including a support and a filter element that is formed of an activated charcoal paper, the support being mounted in the duct structure and cooperating with the activated charcoal paper to form a plurality of flow channels;
- wherein the support includes a plurality of teeth that support the activated charcoal paper at predetermined points.
2 more elements
A vehicle powertrain comprising:
- an internal combustion engine having an intake manifold;
- an air filter housing coupled to the internal combustion engine;
- and
- a duct assembly having a duct structure and a hydrocarbon trap assembly, the duct structure coupling the air filter housing and the intake manifold in fluid connection, the hydrocarbon trap assembly including a support and a filter element that is formed of an activated charcoal paper, the support being mounted in the duct structure and cooperating with the activated charcoal paper to form a plurality of flow channels;
- wherein the duct structure includes a coupling portion including a tapered flange against which a retention lip formed on the hydrocarbon trap assembly is engaged.
2 more elements
A vehicle powertrain comprising:
- an internal combustion engine having an intake manifold:
- an air filter housing coupled to the internal combustion engine;
- and
- a duct assembly having a duct structure and a hydrocarbon trap assembly, the duct structure coupling the air filter housing and the intake manifold in fluid connection, the hydrocarbon trap assembly including a support and a filter element that is formed of an activated charcoal paper, the support being mounted in the duct structure and cooperating with the activated charcoal paper to form a plurality of flow channels;
- wherein the hydrocarbon trap assembly includes a lid coupled to the support, the lid and the support cooperating to hold the activated charcoal paper.
2 more elements
Dependencies are inferred from the claim text.