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Device for determining at least one parameters of flowing gas-liquid mixture and use of low rectifier as condensation trap for liquid contained in gas stream

A technology of gas-liquid mixture and rectifier, which is applied in the direction of liquid/fluid solid measurement, measurement device, measurement flow/mass flow, etc., can solve the problems of measurement characteristic deterioration, measurement element contamination, etc., and achieve reduced processing costs, good flow conditions, low cost effect

Inactive Publication Date: 2008-12-24
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] During operation of the device, it can happen that, for example, small oil droplets or oil vapours are mixed into the air against the main flow direction, the measuring cell becomes contaminated and the measuring properties are significantly deteriorated

Method used

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  • Device for determining at least one parameters of flowing gas-liquid mixture and use of low rectifier as condensation trap for liquid contained in gas stream
  • Device for determining at least one parameters of flowing gas-liquid mixture and use of low rectifier as condensation trap for liquid contained in gas stream
  • Device for determining at least one parameters of flowing gas-liquid mixture and use of low rectifier as condensation trap for liquid contained in gas stream

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Embodiment Construction

[0020] exist figure 1 In, a first embodiment of a device 50 configured according to the invention is shown in partial sectional view for measuring at least one parameter of a gas-liquid mixture flowing in a pipeline, in particular an intake air volume flow of an internal combustion engine, which The drawings are limited to those elements which are important within the scope of the invention. Wherein 1 represents a pipeline, which can constitute a straight-through section of the intake pipe of the internal combustion engine, or an independent component that can be connected with the intake pipe of the internal combustion engine. In any case, the line 1 is located on the so-called clean room side downstream of an air filter not shown. The air cleaner serves to filter the air taken in by an internal combustion engine of a motor vehicle and should prevent the entry of dirt particles and liquids into the intake manifold as completely as possible.

[0021] Connected to the pipelin...

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Abstract

The devices of the prior art for determining at least one parameter of a flowing gas-liquid mixture have the disadvantage that they do not provide protection against the action of a liquid moving against the main flow direction. An inventive device (50) has a condensation trap (36) downstream of the measuring cell (25), which protects the measuring cell (25) from contamination by liquid flowing in the opposite direction. The device can be used in particular for determining intake air parameters of an internal combustion engine.

Description

technical field [0001] The invention relates to a device for determining at least one parameter of a flowing gas-liquid mixture and to the use of a flow rectifier as a condensation trap and to a method for condensation of liquids. Background technique [0002] A device for measuring the intake air volume of an internal combustion engine is known from EP 0 458 998 A1, wherein the intake air circulates through a measuring element in the main flow direction, upstream of which there is a flow rectifier with openings. Downstream of the measuring cell there is a grid which prevents mechanical influences on the measuring cell, for example direct hand contact. [0003] The mesh width of the grid is determined for a particular mesh size. [0004] During operation of the device, it can happen that, for example, small oil droplets or oil vapours get mixed into the air against the main flow direction, the measuring cell becomes contaminated, and the measuring properties are significant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/684G01F15/12G01F1/00F02D35/00G01F15/08
CPCG01F1/6842G01F15/08G01F1/68
Inventor 海因茨·里灵格哈德·许夫特托马斯·伦津汉斯·拜瑞希罗兰·米勒乌韦·康策尔曼
Owner ROBERT BOSCH GMBH
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