WO2007140640A2 - Équipement et procédé pour déterminer des valeurs mesurées d'un aérosol pour une machine de travail - Google Patents

Équipement et procédé pour déterminer des valeurs mesurées d'un aérosol pour une machine de travail Download PDF

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Publication number
WO2007140640A2
WO2007140640A2 PCT/IB2007/004492 IB2007004492W WO2007140640A2 WO 2007140640 A2 WO2007140640 A2 WO 2007140640A2 IB 2007004492 W IB2007004492 W IB 2007004492W WO 2007140640 A2 WO2007140640 A2 WO 2007140640A2
Authority
WO
WIPO (PCT)
Prior art keywords
compressed air
working space
aerosol
measuring devices
machine
Prior art date
Application number
PCT/IB2007/004492
Other languages
German (de)
English (en)
Other versions
WO2007140640A9 (fr
WO2007140640A3 (fr
Inventor
Werner Schaller
Bernd Schneider
Original Assignee
Schaller Automation
Werner Schaller
Bernd Schneider
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaller Automation, Werner Schaller, Bernd Schneider filed Critical Schaller Automation
Publication of WO2007140640A2 publication Critical patent/WO2007140640A2/fr
Publication of WO2007140640A3 publication Critical patent/WO2007140640A3/fr
Publication of WO2007140640A9 publication Critical patent/WO2007140640A9/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase

Definitions

  • the invention relates to a system with measuring devices for determining measured values of an aerosol for a work machine, in particular measurements of the aerosol concentration for an internal combustion engine, and a monitoring method in which measured values of an aerosol in a work machine, in particular measured values the aerosol concentration can be determined in an internal combustion engine.
  • blower occurs that lead to a total damage of the piston / cylinder unit ("piston eater").
  • EP-AO 071 391 it is proposed, with the aid of a blower, to suck the aerosol out of the working space through a measuring chamber and to carry out a reflection measurement with the aid of a radiation source and a radiation sensor.
  • the impeller blower proposed therein is to be used for a plurality of chambers arranged in parallel.
  • US Pat. No. 3,207,026 discloses a monitoring device in which a single rotary pump is used to determine measured values from a plurality of measuring points with the aid of a rotary valve.
  • this system has proven to be particularly unsuitable because it does not keep the collected samples from different from each other and thus contaminate each other.
  • the object of the invention is to propose an improved system with measuring devices of the type mentioned at the outset for determining measured values of an aerosol for a working machine, in particular measurements of the aerosol concentration for an internal combustion engine. The different samples taken should remain unmixed.
  • the object of the invention is achieved by a system according to claim 1.
  • the measures of the invention initially have the consequence that the compressed air jet pump allows effective and controllable extraction of the atmosphere and thus an oil mist from a working space. Furthermore, the measures of the invention have the consequence that the installation of the unit can be made arbitrarily on the engine. Since the compressed air used is clean, unlike the suction pipes according to the prior art, no oil sacks occur that could clog the pipes. The system has a common compressed air source for a large number of measuring devices for the working machine.
  • a branched off from the incoming compressed air branch line may be provided (claim 4), which is guided to the optical sensor to generate a scavenging air curtain on the optical elements.
  • the purge air is supplied together with the working space atmosphere of the vacuum chamber of the compressed air jet pump.
  • the compressed air outlet of the compressed air jet pump is connected to the working space to dispose of the use of compressed air in the working space and thus to form a closed circuit, which is almost independent of compressed air fluctuations in the drive room.
  • test aerosol can be introduced into the compressed air supply.
  • the system of the invention is particularly suitable for a method for monitoring the working atmosphere of a work machine the design in a measuring system according to claim 7, wherein a plurality of measuring devices. gene is supplied with a common compressed air supply. It is advantageous if it is possible to dispose of the compressed air after their use by the compressed air jet pump in the working space. It is advantageous according to claim 8, to feed a test aerosol in the common compressed air supply. This creates the opportunity to simultaneously supply all measuring devices with the test aerosol and to perform a common test or adjustment for all measuring devices.
  • FIG. 1 shows a measuring device in a schematic representation at the working space of an internal combustion engine
  • Figure 2 shows a system with several measuring devices on an internal combustion engine, in a schematic representation.
  • the measuring device 2 contains as suction means a compressed air jet pump 8, the vacuum chamber 10 via a suction line 12 via an opening not shown in the wall of the working space with the interior of the working space 4 is in communication.
  • a sensor 14 of a sensor unit 16 for determining the measured values of the oil mist is arranged in the suction line.
  • the suction line further includes a suction nozzle 20 which is arranged in the working space 4 of the working machine 6 and which contains a separation means 22 to seize coarser constituents, in particular oil droplets, from the sucked oil mist.
  • the separating means 22 is provided with a labyrinth 24 for separating the coarse components of the sucked-in oil mist.
  • the compressed air jet pump 8 has a compressed air supply 26 which opens into a nozzle 28, which injects the compressed air jet into a funnel 30 of a compressed air outlet and thereby generates a negative pressure in the vacuum chamber 10 surrounding the transition region between the nozzle 28 and the funnel 30.
  • the suction line 12 is connected to the vacuum chamber 10.
  • the sensor unit 16 has an electronic module 34, in which a radiation source, not shown, and a corresponding radiation detector are arranged, which are connected via an optical waveguide 36 to the sensor 14.
  • the sensor 14 is equipped with a converging lens 38, which bundles the incoming rays that pass through a disk 40 to traverse a measuring chamber 42, which is located in the suction line 12 and flows through the oil mist.
  • a mirror device 44 is arranged to reflect the light rays against the lens 38, which are passed to the light guide 36 and received by the radiation detector of the electronic module 34.
  • a branch line 46 is connected, which open via openings 48, 50 in the measuring chamber 42, namely on the mirror device 44 and the disc 40, to generate there a scavenging curtain, which contaminating the mirror device 44th and the disc 40 prevents. This prevents that, for example, oil mist precipitates on the mirror device 44 and the disk 40.
  • the scavenging air is sucked together with the extracted from the working space 4 atmosphere via the suction line 12 and the vacuum chamber 10 of the compressed air jet pump 8.
  • the electronic module 34 of the sensor unit 16 is connected, for example, via a line 52 to an external evaluation device 54, which displays the oil mist concentration measured in the measuring chamber 42. If the oil mist concentration exceeds a predeterminable threshold value, which indicates a defect in the working machine, then a corresponding alarm signal can be output or the working machine can be switched off.
  • the compressed air outlet 32 of the compressed air jet pump 8 can open into the environment or be returned to a collecting container or preferably in the working space 4 of the working machine, as indicated by the dashed return 56.
  • the working space 4 of the working machine 6 is usually provided with a suction, not shown, so that the return of the compressed air from the compressed air outlet 32 can cause any unacceptable pressure build-up and thus backwater in the compressed air outlet 32.
  • the compressed air supply 26 is connected via a line 58 to an external compressed air source 60.
  • a device 62 is connected to the external compressed air source 60, with which a beautosol the line 58 can be supplied as needed.
  • the functioning of the measuring device 2 and / or the evaluation device 54 can be monitored and / or the response sensitivity can be set to a specific oil mist content.
  • the measuring device can be arranged directly on the observed working space of a working machine.
  • FIG. 2 shows as working machine 6 a reciprocating piston engine which has, for example, 5 cylinders 64i to 64 5 .
  • Each cylinder 64i to 64 5 is a working space 4 X to 4 5 assigned, in which the crankshaft section is located, which belongs to the cylinder.
  • a measuring device 2 ⁇ to 2 5 is arranged in each case, which are connected via lines 58i to 58s each with the common external compressed air source 60.
  • the measuring devices 2i to 2 5 are in turn connected to the evaluation device 54 via a common line 52, for example a bus line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne l'amélioration d'un équipement de surveillance de l'atmosphère de l'espace de travail d'une machine de travail et se base sur des dispositifs (2) de mesure destinés à déterminer des valeurs mesurées pour un aérosol dans l'espace (4) de travail d'une machine (6) de travail, notamment la concentration d'aérosols dans l'espace de travail d'un moteur à combustion interne. Les dispositifs de mesure présentent respectivement un moyen (8) d'aspiration qui aspire un mélange aérosol/air hors de l'espace (4) de travail de la machine (6) de travail et l'achemine à une unité (16) de détection optique. Il existe également un module (34) électronique pour l'opération de l'unité (16) de détection optique. Le moyen d'aspiration est réalisé sous la forme d'une pompe (8) à jets d'air comprimé comportant une arrivée (26) d'air comprimé, une sortie (32) d'air comprimé et une chambre (10) de dépression, l'arrivée (26) d'air comprimé pouvant être reliée à une source (60) d'air comprimé commune pour tous les dispositifs de mesure de l'équipement. Une conduite (12) d'aspiration qui est reliée avec l'unité (16) de détection optique et qui peut être reliée avec la chambre (4) de travail de la machine (6) de travail est raccordée à la chambre (10) de dépression.
PCT/IB2007/004492 2006-06-02 2007-06-01 Équipement et procédé pour déterminer des valeurs mesurées d'un aérosol pour une machine de travail WO2007140640A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH892/06 2006-06-02
CH8922006 2006-06-02

Publications (3)

Publication Number Publication Date
WO2007140640A2 true WO2007140640A2 (fr) 2007-12-13
WO2007140640A3 WO2007140640A3 (fr) 2008-08-21
WO2007140640A9 WO2007140640A9 (fr) 2008-11-06

Family

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Country Status (1)

Country Link
WO (1) WO2007140640A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386733A1 (fr) 2010-05-14 2011-11-16 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif et procédé de détermination de valeurs de mesure de gaz et/ou d'un aérosol pour une machine
EP2615269A1 (fr) * 2012-01-13 2013-07-17 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif et procédé de détermination de valeurs de mesure de gaz et/ou d'un aérosol pour une machine de travail
EP2615270A1 (fr) 2012-01-13 2013-07-17 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif servant à extraire et recycler des gaz du carter d'un moteur à combustion interne
CN111425278A (zh) * 2020-03-31 2020-07-17 合肥恒信汽车发动机部件制造有限公司 一种油气分离器总成

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027536B2 (en) * 2012-06-26 2015-05-12 Ford Global Technologies, Llc Crankcase ventilation and vacuum generation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434995A1 (de) * 1984-09-24 1986-04-03 Schaller-Automation Industrielle Automationstechnik KG, 6653 Blieskastel Einrichtung zur ueberwachung der schmierung von grossdieselmotoren
JPH07310519A (ja) * 1994-05-16 1995-11-28 Daihatsu Diesel Mfg Co Ltd 簡易オイルミスト警報装置
WO1998011331A1 (fr) * 1996-09-13 1998-03-19 Electrical Engineering Company, Ltd. Procede de determination d'une valeur de mesure, notamment de la concentration d'un aerosol dans une chambre fermee d'une machine de travail
JP2005030945A (ja) * 2003-07-07 2005-02-03 Daihatsu Diesel Mfg Co Ltd オイルミスト濃度検出装置
JP2005106017A (ja) * 2003-10-01 2005-04-21 Daihatsu Diesel Mfg Co Ltd オイルミスト濃度検出装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434995A1 (de) * 1984-09-24 1986-04-03 Schaller-Automation Industrielle Automationstechnik KG, 6653 Blieskastel Einrichtung zur ueberwachung der schmierung von grossdieselmotoren
JPH07310519A (ja) * 1994-05-16 1995-11-28 Daihatsu Diesel Mfg Co Ltd 簡易オイルミスト警報装置
WO1998011331A1 (fr) * 1996-09-13 1998-03-19 Electrical Engineering Company, Ltd. Procede de determination d'une valeur de mesure, notamment de la concentration d'un aerosol dans une chambre fermee d'une machine de travail
JP2005030945A (ja) * 2003-07-07 2005-02-03 Daihatsu Diesel Mfg Co Ltd オイルミスト濃度検出装置
JP2005106017A (ja) * 2003-10-01 2005-04-21 Daihatsu Diesel Mfg Co Ltd オイルミスト濃度検出装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386733A1 (fr) 2010-05-14 2011-11-16 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif et procédé de détermination de valeurs de mesure de gaz et/ou d'un aérosol pour une machine
WO2011141191A1 (fr) 2010-05-14 2011-11-17 Schaller Automation Industrielle Automationstechnik Gmbh & Co. Kg Installation et procédé pour la détermination de valeurs mesurées de gaz et/ou d'un aérosol pour une machine de travail
US8695400B2 (en) 2010-05-14 2014-04-15 Uwe Gnauert System and method for determining readings of gases and/or an aerosol for a machine
EP2615269A1 (fr) * 2012-01-13 2013-07-17 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif et procédé de détermination de valeurs de mesure de gaz et/ou d'un aérosol pour une machine de travail
EP2615270A1 (fr) 2012-01-13 2013-07-17 Schaller Automation Industrielle Automationstechnik GmbH & Co. KG Dispositif servant à extraire et recycler des gaz du carter d'un moteur à combustion interne
WO2013104454A1 (fr) * 2012-01-13 2013-07-18 Schaller-Automation Dispositif et procédé pour déterminer des valeurs de mesure de gaz et/ou d'un aérosol pour une machine de travail
CN104204431A (zh) * 2012-01-13 2014-12-10 沙勒工业自动化技术两合公司 用于确定作功机械的气体和/或气溶胶的测量值的设备和方法
JP2015505003A (ja) * 2012-01-13 2015-02-16 シャラー‐アウトマティオン・インドゥストリエレ・アウトマティオンステヒニク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディートゲゼルシャフト 被駆動機械に用いられるガス及び／又はエアロゾルに関する測定データを得るための装置並びに方法
US9080975B2 (en) 2012-01-13 2015-07-14 Schaller-Automation Industrielle Automationstechnik GmbH & Co. KG Device and method for ascertaining measured values of gases and/or an aerosol for a machine
CN111425278A (zh) * 2020-03-31 2020-07-17 合肥恒信汽车发动机部件制造有限公司 一种油气分离器总成
CN111425278B (zh) * 2020-03-31 2021-01-08 合肥恒信汽车发动机部件制造有限公司 一种油气分离器总成

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Publication number Publication date
WO2007140640A9 (fr) 2008-11-06
WO2007140640A3 (fr) 2008-08-21

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