Suction duct
AssigneeToyoda Gosei Co., Ltd.
InventorsKazuo Fujihara, Yasuo Sakakibara, Yoshikazu Hirose, Takahiro Komori, Hitoshi Kino, Zenichi Yasuda, Hidetoshi Ishihara, Kuniyasu Ito, Masaru Hattori
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Abstract
At least a part of a duct wall of a suction duct is formed out of a molded body of non-woven fabric. The non-woven fabric contains a thermoplastic resin binder.
Claims29
A suction duct to be disposed between an outside air intake of a motorcar and an intake manifold of an engine, wherein said suction duct has a duct wall, and at least a part of said duct wall is formed out of a molded body of non-woven fabric having permeability,
- wherein the permeability per 1m2 of said molded body is not larger than 6,000m3/h in case of air with a pressure difference of 98 Pa.
A suction duct to be disposed between an outside air intake of a motorcar and an intake manifold of an engine, said suction duct comprising:
- a first segment constituted by a molded body of synthetic resin;
- and
- a second segment constituted by a molded body of non-woven fabric, the non-woven fabric having permeability,
- wherein said first and second segments are coupled integrally with each other so as to be formed into a cylinder.
A suction duct disposed between an outside air intake of a motorcar and an intake manifold of an engine, said suction duct comprising a hard portion with high compressibility and a soft portion with low compressibility, which portions are formed out of non-woven fabric containing a thermoplastic resin binder by compression molding, the non-woven fabric having permeability.
A suction duct to be disposed between an outside air intake of a motorcar and an intake manifold of an engine, said suction duct comprising a plurality of segments, each of said segments being formed out of non-woven fabric, the non-woven fabric having permeability and containing a thermoplastic resin binder by compression molding so as to have a substantially semicircular sectional shape with flange portions on its opposite sides, said flange portions of said segments being bonded with each other so that said segments are formed into a cylinder, a deformable flexible portion being provided in at least a part of said flange portions.
Dependencies are inferred from the claim text.