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Corrugated tube, tube, and air intake system

A technology of fresh air and bellows, applied in the field of bellows, can solve the problems of increased wear and increased load on components

Inactive Publication Date: 2012-10-03
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, the annular pleats impart a certain bending elasticity to the bellows also parallel to the longitudinal center axis, that is to say in the axial direction, but this bending elasticity is not desirable for certain applications, for example in fresh air installations for internal combustion engines, Oscillations in the pipe body due to bending elasticity under cyclical pressure loading, which lead to increased loads on the components and thus to increased wear

Method used

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  • Corrugated tube, tube, and air intake system
  • Corrugated tube, tube, and air intake system
  • Corrugated tube, tube, and air intake system

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Embodiment Construction

[0031] corresponds to figure 1 , the remaining not shown fresh air device 1 (which is used in an internal combustion engine for supplying fresh air and can be arranged especially in a motor vehicle) can contain at least one pipe 3 in a fresh air line 2 leading to fresh air, which pipe 3 is connected to In its longitudinal direction it has a pipe section 4 which is configured as a bellows 5 . In another embodiment, the pipe 3 can also have a plurality of pipe sections 4 which are each designed as bellows 5 .

[0032] corresponds to Figure 1-7 Such a bellows 5 is characterized by a plurality of annular pleats 6 which each run coaxially with the longitudinal center axis 7 of the bellows 5 and follow one another in a pipe longitudinal direction 8 defined by the longitudinal center axis 7 . The individual annular pleats 6 here have a circular cross section, whereby a corrugated structure is produced in the longitudinal direction 7 . In principle, however, edged annular folds 6 ...

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Abstract

The present invention relates to a corrugated tube (5), in particular for an air intake system (1) of an internal combustion engine, preferably of a motor vehicle, having a plurality of annular pleats (6) disposed in series in the longitudinal direction of the tube (8).Reinforcement in the longitudinal direction of the tube (8) can be achieved by means of at least one longitudinal pleat (9) extending in the longitudinal direction of the tube (8) and thereby intersecting at least one annular pleat (6).

Description

technical field [0001] The invention relates to a bellows, in particular for a fresh air system of an internal combustion engine, preferably a motor vehicle. The invention also relates to a pipe, preferably a fresh air system of a motor vehicle, in particular an internal combustion engine, which is provided with at least one pipe section designed as a bellows. Furthermore, the invention relates to a fresh air system for an internal combustion engine, in particular a motor vehicle, which has at least one tube of the aforementioned type or at least one bellows of the aforementioned type. Background technique [0002] WO 02 / 02981 A1 discloses a tube which has a bellows section or a section designed as a bellows. A plurality of annular folds are provided in such corrugated pipes, which follow one another in the longitudinal direction of the pipe. Such a bellows is uniformly flexurally elastic in all directions with respect to its longitudinal center axis. Furthermore, the ann...

Claims

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Application Information

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IPC IPC(8): F16L11/11F16L11/15
CPCF16L11/111F16L11/15F02M35/10137
Inventor 安德烈亚斯·希斯茨尔霍斯特·瓦格纳
Owner MAHLE INT GMBH