US 2003/0111036 A1Published application

Vehicle intake manifolds

AssigneeAisan Kogyo Kabushiki Kaisha

InventorsKazuhisa Nomura, Satoshi Hattori

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Abstract

Air intake manifolds (32) for vehicle engines (50) may include a plate-shaped short runner valve (16) that is rotatably disposed within an aperture (19) of a wall partition (42). The valve (16) may be operated to open and close the aperture. A flange (22) may extend from an inner surface of the aperture and the flange may define a sealing face (22b). An elastic sealing member (21) may be disposed along a peripheral edge of the valve. The sealing member may include first and second projections (21a, 21b) extending from the peripheral edge of the valve. The first and second projections may be arranged in a substantially V-shape. Further, the terminal ends of the first and second projections are preferably disposed so as to closely contact the sealing face when the valve is rotated to the closed position.

Claims10

Dependent claims

An air intake manifold (32) comprising:

a partition wall (42) dividing an air passage (18) into two portions, wherein at least one aperture (19) is defined within the partition wall,
a valve (16) rotatably disposed within the at least one aperture and being rotatable between an opened position and a closed position,
a flange (22) extending from a side wall of the aperture, the flange defining a sealing face (22a) that is arranged and constructed to closely contact a peripheral edge of the valve when the valve is disposed in the closed position, and
an elastic sealing member (21) affixed to the peripheral edge of the valve, the sealing member comprising a first portion (21a) arranged and constructed to press against the sealing face when the valve is disposed in the closed position and positive pressure is applied to one side of the valve, and a second portion (21b ) arranged and constructed to press against the sealing face when the valve is disposed in the closed position and positive pressure is applied to an opposite side of the valve.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/315,933Filed 11 Dec 2002
Priority: JP 2001-38541719 Dec 2001
Published: 19 Jun 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F02B 27/02
Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or…:…
F02B 27/021
Characterised by the charging effect: resonance charging
F02B 27/0242
Characterised by the means generating the charging effect: fluid communication passages between intake ducts, runners or chambers
F02B 27/0252
Plenum chambers; Resonance chambers or resonance pipes: multiple plenum chambers or plenum chambers having inner separation walls, e.g. comprising…