Plastic hollow structure
First Claim
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1. An air intake filter for an internal combustion engine having sound damping at least before or after a filter, comprising:
- an assembled hollow chamber structure having an inlet and an outlet, said hollow chamber structure comprising at least two housing parts each having a sealing surface matching a corresponding sealing surface on the other housing part, each housing part further having at least one half wall, wherein the half walls of one housing part mate corresponding half walls of the other housing part to form a resonator chamber lying in the housing interior, and wherein the matching sealing surfaces and the mating wall halves are joined to each other by means of a friction force, and wherein said inlet, said resonator chamber and said outlet communicate with each other, and a filter element, wherein said hollow chamber structure comprises a resonator chamber for damping noise, the air intake filter further comprising an air filter housing containing the filter, the air filter housing being releasably fastened to one of the housing parts, wherein a gasket of the filter is in sealing contact with a filter sealing surface of the one of the housing parts, and the filter is disposed in a flow path between the inlet and outlet.
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Abstract
A multi-component hollow structure including at least two synthetic resin housing parts (1, 3) with corresponding sealing surfaces (2, 4), and at least one half wall per housing part, in which the half walls of one housing part meet corresponding half walls of the other housing part in order to reinforce the hollow structure, and in which the corresponding sealing surfaces (2, 4) and the half walls (6, 7) are joined using a friction force, such as vibration welding or ultrasonic welding. A method for producing such multi-component hollow structures is also disclosed.
46 Citations
10 Claims
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1. An air intake filter for an internal combustion engine having sound damping at least before or after a filter, comprising:
- an assembled hollow chamber structure having an inlet and an outlet, said hollow chamber structure comprising at least two housing parts each having a sealing surface matching a corresponding sealing surface on the other housing part, each housing part further having at least one half wall, wherein the half walls of one housing part mate corresponding half walls of the other housing part to form a resonator chamber lying in the housing interior, and wherein the matching sealing surfaces and the mating wall halves are joined to each other by means of a friction force, and wherein said inlet, said resonator chamber and said outlet communicate with each other, and a filter element, wherein said hollow chamber structure comprises a resonator chamber for damping noise, the air intake filter further comprising an air filter housing containing the filter, the air filter housing being releasably fastened to one of the housing parts, wherein a gasket of the filter is in sealing contact with a filter sealing surface of the one of the housing parts, and the filter is disposed in a flow path between the inlet and outlet.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification