Suction device with aspirating tube of changeable length

A technology of suction equipment and suction pipes, applied in mechanical equipment, combustion air/combustion-air treatment, internal combustion piston engines, etc., can solve problems such as flow loss and achieve the effect of small structural space

Inactive Publication Date: 2016-05-25
ROECHLING AUTOMOTIVE SE & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to different flow losses in the swivel-length suction pipe in different operating states

Method used

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  • Suction device with aspirating tube of changeable length
  • Suction device with aspirating tube of changeable length

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] exist figure 1 and 2 Illustrated in is an embodiment of the invention of a suction device generally designated 10 .

[0047] The suction device comprises two suction pipes 12 and 14 which extend along pipe axes RA12 and RA14 respectively. The intake duct 12 surrounds the intake duct 13 and the intake duct 14 surrounds the intake duct 15 .

[0048] Since the two suction pipes 12 and 14 are configured substantially with respect to a figure 1 The drawing plane and the plane of symmetry parallel and equidistant from the pipe axes RA12 and RA14 are mirror-symmetrical, and the following represents the two suction pipes 12 and 14 only on the figure 1 and 2 The suction pipe 12 on the left side will be described respectively. What has been said about the intake pipe 12 also applies mutatis mutandis to the intake pipe 14 .

[0049] The suction duct 12 comprises a first duct arrangement 16 which, in the example shown, comprises a first axial section 16a and a second axial se...

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PUM

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Abstract

The invention relates to a suction device (10) with an aspirating tube of a changeable length, comprising at least one aspirating tube (12, 14) surrounding an air inlet (13,15) and having a changeable effective length. The aspirating tube comprises a tube configuration component (16) extending along a tube axis (RA12,RA14), and including a first opening (20) located at a first axial position. The suction device is characterized in that the tube configuration component (16) is provided with a second opening (22) at a second axial position keeping an axial distant with the first axial position; the suction device (10) is provided with another sealing device (32) which can move between a closing position closing the second opening (22) and an opening position of absorbing air into the air inlet (13,15) from the aspirating tube (12, 14) through the second opening (22), allowing the second opening (22) to form a temporary opening of the aspirating tube (12, 14) according to the position of the sealing device (32).

Description

technical field [0001] The invention relates to an air intake device for a motor vehicle, comprising at least one air intake pipe which surrounds an air intake duct and has a variable effective air intake pipe length, the air intake pipe comprising a pipe extending along the pipe axis A configuration assembly having a first opening at a first axial location is provided. Background technique [0002] A suction device of this type is known, for example, from DE 1576022A. DE 3630488 A1 also shows a suction device having all the features of the preamble of claim 1 . [0003] The two publications mentioned each show an air intake device in which the hydrodynamically effective length of the intake pipe can be varied as a function of the rotational speed of an internal combustion engine which conventionally interacts with known air intake devices. In this case, it has proven to be advantageous to shorten as the speed of the internal combustion engine increases or to lengthen the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B27/02
CPCF02B27/006F02B27/0215F02M35/10098Y02T10/12
Inventor 马尔科·巴尔博利尼阿尔贝托·米廖里尼
Owner ROECHLING AUTOMOTIVE SE & CO KG
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