Air cleaner for internal combustion engine
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsRyusuke KIMURA, Yoshinori INUZUKA
Life of this patent
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Abstract
An air cleaner for an internal combustion engine includes a first housing having an inlet and an upper opening, a second housing having an outlet and a lower opening, a filter element arranged between the upper opening of the first housing and the lower opening of the second housing. The first housing includes a sound reducing wall portion. The sound reducing wall portion has a sound absorbing layer, which is made of nonwoven fabric, and an inner covering layer, which is fixed to the inner surface of the sound absorbing layer and made of a material having a lower air permeability than that of the sound absorbing layer.
Claims9
An air cleaner for an internal combustion engine, comprising:
- a first housing including an inlet and an opening;
- a second housing including an outlet and an opening;
- and
- a filter element arranged between the opening of the first housing and the opening of the second housing, wherein
- at least one of the first housing and the second housing includes a sound reducing wall portion, and
- the sound reducing wall portion includes
- a sound absorbing layer made of an air permeable material, and
- an inner covering layer, which is fixed to an inner surface of the sound absorbing layer and made of a material having a lower air permeability than that of the sound absorbing layer.
Dependencies are inferred from the claim text.