EP0925430A1 - Device for determining measured values, specially the concentration of an aerosol in a closed chamber of a working machine - Google Patents

Device for determining measured values, specially the concentration of an aerosol in a closed chamber of a working machine

Info

Publication number
EP0925430A1
EP0925430A1 EP19970938726 EP97938726A EP0925430A1 EP 0925430 A1 EP0925430 A1 EP 0925430A1 EP 19970938726 EP19970938726 EP 19970938726 EP 97938726 A EP97938726 A EP 97938726A EP 0925430 A1 EP0925430 A1 EP 0925430A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
bus
rail
characterized
device according
line
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19970938726
Other languages
German (de)
French (fr)
Other versions
EP0925430B1 (en )
Inventor
David Stedham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRICAL ENGINEERING Co Ltd
ELECTRICAL ENG CO Ltd
Original Assignee
ELECTRICAL ENG CO Ltd
Electrical Engineering Co Ltd
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

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10Indicating devices; Other safety devices

Abstract

The invention concerns a device containing a measuring probe (M) which is placed at a wall (1) of a motor and projects into the chamber of a working machine. The measuring probe (M) has a conductor (L) that sticks out of the chamber and is coupled to a bus coupler (K) connecting it to a bus bar (S).

Description

Vorrxchtαng for determining Hess values ​​of Konzentratxon an aerosol xnsbesondere in a closed Rann of a work machine

technical field

The invention relates to an apparatus according to the preamble of claim 1.

State of the art

The monitoring of aerosol concentrations, particularly oil mist in the engine rooms of internal combustion engines or in cases of power transmissions, for example in printing machines, is to prevent damage of considerable importance, since a rapid increase in Ölnebelkonzen- concentration leads to the conclusion to a tearing of the lubricant film. Due to the resulting frictional heat is Ölda pf recondensed in the engine room to oil mist and thus leads to a rapid increase in oil mist concentration forms. This can be seen and by taking necessary measures, such as shutting down the machine, prevent further damage an incipient threat.

In addition to the already described Olnebelbildung due to filming cracks in camps so-called blow-through can occur in piston engines between the piston and cylinder wall as a result of faulty piston rings, they are not recognized in time, lead to piston seizure. Increasing the oil mist density with simultaneous temperature rise due to the hot, coming into the crankcase combustion gases can be so close to a blow-through.

There are devices for displaying Olnebelkonzentrationen in engine rooms of internal combustion engines is known (EP-B-0071391) in which the oil mist is sucked out of the drive chamber and passed through a chamber containing a device for measuring the Extinktionsgrades. A disadvantage is the great constructive and operating expenses (pumps, maintenance), the possible separation of the aerosol "oil mist" on the way to and through the chamber and the time delay in the measurement.

From DD-A-239 474 or GB-A-2166232 is a respective device of the aforementioned type is known in which a measuring probe is provided for each engine of an internal combustion engine, wherein each measurement probe is arranged directly in the interior of the respective engine room and is connected via an optical or electrical communication path with an external to the engine central control unit.

Summary of the Invention

Purpose of the invention is to improve a device of the type mentioned. Another purpose of the invention is to integrate the Olnebelsensorik in a quick assembly system.

Another purpose of the invention is to run the entire system so far waterproof, that can not penetrate into the electrical circuit system when cleaning the engine jets of water.

Another purpose of the invention is to protect the electronic converter system against damage caused by vibrations which are generated by the running motor, as well as against electromagnetic influences from outside and to prevent the other hand that electromagnetic radiation from the electronic circuits to the outside is carried out.

The object set or the intended purposes are achieved by the characterizing features of claim 1.

Advantageous embodiments EADERSHIP examples are described in claims 1 to eighteenth

The measuring probe can be designed to determine various measurements such as temperature or other physical variables. However, it is preferably to determine the concentration of an aerosol, in particular configured of an oil mist.

The measuring probe may be directly connected with an evaluation device, or connected to a bus bar via a bus coupler. The bus bar may be connected to a converter and an evaluation of the measuring signals. Preferably, the bus coupler is formed directly as a converter and connected to the bus bar to an evaluation device. Brief Description of Drawings

Features of the invention will be described in more detail below with reference to the drawings, in which:

1 shows a monitoring device to a work machine in vertical section;

2 shows a measuring probe of the monitoring device of Figure 1 in vertical section and in a larger scale;

Figure 3 shows the arrangement of the measuring probe and a

BUS-rail to a work machine, in a perspective view;

4 shows the arrangement of Figure 3 in exploded view;

5 shows a section of the bus bar of the

Figure 3 in exploded view;

Figure 6 is a bus line rail of the support rail in plan view;

7 shows the connection between the measuring probe,

US coupler and BUS-rail in a view transverse to the bus bar;

Figure 8 shows the bus coupler of Figure 7 in

Vertical section and on a larger scale; 9 shows the bus coupler of Figure 7 with

Details of Anεchlussbereiches, on a larger scale;

10 shows a lead guide area of ​​the

BUS coupler of Figure 9, assuming panel in top view and in perspective view;

Figure 11 is the bus-coupler of Figure 8 in

View of the terminal contact area in a perspective view;

12 shows the bus bar in view of the

Terminal contact area for the BUS coupler, in a perspective view;

Figure 13 shows a mounting clip with guide means for the conductor in the neck and in a perspective view;

14, the bus bar in the opened state and in perspective view; and

Figure 15 is a member of the cut as an intermediate piece for connecting BUS Schienenab- or as an end piece for disconnecting close the BUS rail formed in various views and in a perspective view. Ways of carrying out the invention

1 shows a arranged on a working machine, such as a piston engine apparatus for detecting measuring values, preferably an aerosol, in particular of the oil mist in an engine room, preferably a diesel engine. The apparatus includes projecting a through motor wall (1) measuring probe (M) which is via a conductor (L) with a bus coupler (K) connected, which is arranged on the outside of the motor to a bus rail (S) ,

For this purpose, as is apparent in particular from Figure 2, in the engine wall (1) a guide tube (2) of the measuring probe screwed (M) to which a venturi-runner nozzle (3) is attached. The crankcase atmosphere set by the crankshaft rotation in circular motion (4) flows through the Venturi-runner nozzle (3) and generates at the removal point (5) a negative pressure. At this vacuum, the measuring chamber (7) via the outlet channel (6) is connected. Characterized occurs crankcase atmosphere at the feed point (8) in the measuring chamber (7) and flows through this, and enters again at the removal point for negative pressure (5) and passes back through the venturi runner nozzle (3) in the crankcase atmosphere (4).

upstream of the supply point (8) for the oil mist in the crankcase atmosphere is a labyrinth (9), which prevents the oil spray into the measuring chamber (7) can penetrate. The measuring signals for the oil mist density are obtained in a measurement section (10) in the measuring chamber (7). For this, the measuring chamber (7) (11) is at one end with a fiber optic cable extending therein glass fiber bundles for the light line (12) and the light return line (13). The two glass fiber bundles (12) and (13) end in a fiber optic bundle holder (14) with ground Glasf ser-exit surface. Prior to this version, there is a converging lens (15) which directs the fed via an optical fiber bundle (12) by the light measuring section (10) to the cube corner reflector (16). The triple reflector (16) reflects the light independently of a precise adjustment of the convergent lens (15) and the triple reflector (16) exactly to the lens (15) back, which focuses turn, the light in the glass fiber bundle (13), so that it can be removed at the end of the optical fiber cable (11) for the electronic implementation.

When the about the labyrinth (9) and the feed point (8) under pressure generated by the in the venturi nozzle (3) in the measuring chamber (7) sucked crankcase atmosphere oil mist, which is the measuring path (10) in both directions, namely from the lens (15) for triple reflector (16) and back to the lens (15), light passing through attenuated in intensity, so that the recirculated through the optical fiber bundle (13) light in the electronic signal conversion at the end of the optical fiber cable (11) has a smaller electronic signal amplitude triggers.

The object is to integrate the Olnebelsensorik in a quick assembly system is considered to be operating with only slightly different standard mounting components and to limit to adapt to the different types of motors required system flexibility to only a few modifiable system components.

For this purpose from the sensors of the measuring section (10) from the various compartments attenuation signals as a function of the oil mist density through the line (L) to the bus coupler (K), which is designed as a converter, the bus rail (S) may be supplied, as taken in particular from 3 to 14th Each bus coupler (K) contains an electronic converter system (17) which converts the measurement signals and a bus line rail (18) supplies, at the end (19) of a not-shown electronic evaluation unit is connected. The BUS line rails (18) are inserted in metallic BUS support rails (20) have a fixed standard length. These BUS support rails (20) depending on the engine type and supplies, divided over the entire length of the engine and the resulting gaps by carrier rails intermediate pieces (21) by mechanical coupling to the bus carrier rails (20) closed.

The bus rail (S) with the BUS-support rails (20) are in turn secured by BUS rail holder (22) to the engine wall. The BUS-rail holder (22) in turn by means of a clamping nut (23) on the guide tube of the measuring chamber (2) are fixed, such as in particular appears from the figures 1 to 5 and 7. FIG.

The object is to carry out the entire system so far waterproof, that can not penetrate into the electric circuit system during the cleaning of the motors water jets is seen in that the electronic converter circuit (17) which is embedded in a Kunεtharzblock (26) in flexible conductor foil technique executed and a part of the flexible conductor foil (27) with contact terminals (28) is provided on the flexible film, wherein the flexible conductor foil (27) with the contact terminals (28) on the flexible foil on a contact spring assembly (29) adhered, which in the synthetic resin block (26) is fixed and from this to the contact terminals (28) which fit onto the mating contacts (39) of the BUS line (40) protrudes, as is apparent in particular from FIG. 8

embedded by wrapping of the synthetic resin block (26) electronic converter system (17), including the associated flexible printed circuit film (27), with one, chucking the synthetic resin block (26) rubber skin (30) has a bus coupler (31) is formed, from which the contact terminals protrude (28) on the flex foil with the contact spring assembly (29). For this purpose, the rubber skin has (30) of the bus coupler is enclosed a slot-shaped opening (32), the formed in its circumference with a in the rubber skin (30) Hohlschnappnut (33), in particular the figures can be taken 8 and 11. FIG.

Figures 8, 9 and 10 show that in the rubber skin (30) further comprises a winding channel (34) is formed with the retaining lips (35) for receiving the depending on the type of engine, not required standard length of fiber optic cable (11) which with its end via a light conductor cable (11) waterproof enclosing tubular opening (36) in the rubber skin (30) in the interior of the winding channel (34) in the electronic converter system (17) is inserted, said optical fibers for light feed line (12) are introduced into a light emitting diode (37) and the optical fibers for light return line (13) are introduced into a light sensory converter diode (38).

The bus line rail (18) includes an electronic circuit board in the standard length of the BUS-Tragεchiene (20) running BUS line (40) and has the bus mating contacts (39), as shown in Figure 6 in a portion of bus cable is shown on the bus printed circuit board (40). The etched BUS lines a ', b' to n 'are connected via an etched circuit board with the corresponding system bus mating contacts a, b to n, to which the contact terminals on the flex foil (28) exactly fit. In this manner all corresponding BUS mating contacts (39) are a, b connected to each other to n.

The BUS-circuit board (40), as is apparent in particular from Figures 9 and 12, adhered to a metal bus bar (41) with spring-retaining hook profile (42). The BUS coupler (31) engage upon insertion into the BUS-support rails (20) with the free end of the contact spring pact (29) under the spring holding hook profile (42), so that during the form-locking pressing down the BUS coupler (31) to the BUS-conduction track (18), contact terminals (28) of the flexible foil are connected to the bus mating contacts (39) and maintain the required contact pressure.

Figures 9 and 12 show how are vulcanized to the water protection of the BUS printed circuit board with the etched BUS lines (40), these together with the BUS-metal rail (41) in a rubber skin (43). The bus mating contacts (39) are in this case recessed by a slot-shaped bus mating contact opening (44) in the BUS-rubber skin (43). The slot-shaped BUS counter contact opening in the BUS-rubber skin (43) by a sealing bead (45) is enclosed, the profile with its shown in section sealing bead (45) in the shown in section recording the Hohlschnappnut (33) fits (Figures 8, 11 and 12) and upon insertion of the BUS coupler (31) in the BUS-Trags- snap-track (20) waterproof. By wrapping the bus line rail (18) in the BUS-rubber skin (43) and the wrapping of the electronic converter system (17) including the associated flexible printed circuit film (27) in the rubber skin (30), whereby the bus coupler (31) in the, molded from the rubber skin (30) Hohlschnappnut (33) is formed, the entire electronic system closed watertight.

The solution of the task of the electronic converter system (17) with the bus coupler (31) and the contact terminals (28) on the flex foil and the bus mating contacts (39) against damage caused by vibrations which are generated by the running motor to is protected, as is apparent in particular from figures 9 and 12, seen in the fact that the rubber skin (43) of the bus line rail (18) over their entire length corresponding to the length of the bus rail (20) on both sides and is provided over the entire length with a rubber holding profile (46) which is threaded the BUS support rail in the holding grooves (47), whereby the entire BUS line rail (18) between the two retaining grooves (47) of the bus rail (20) is clamped. For this purpose, an elastic rubber compound (48) during the Einvulkanisationsprozesses the BUS line rail (18) is made between the rubber skin (43) of the bus line rail (18) and the two holding rubber profiles (46). The elastic rubber compound (48) is designed so that the entire suspended thereon composition consisting of the bus line rail (18) and accommodated thereon electronic converter systems (17) forms a mechanical vibration system with a low frequency tuned resonant frequency. Thereby, the harmful higher-frequency mechanical vibration vibrations to the electronic converter system (17) and the contact connections between the contact terminals (28) on the flex foil and the bus mating contacts (39) can not interact.

In particular, from Figures 7 to 10 and 13 indicate that the out of the measuring chamber (7) emerging fiber optic cable (11) in a slit tube (49) is accommodated, in which it is inserted through the slot (50). The slit tube (49) itself is performed by means of retaining tongues (51) and mounted on the BUS-rail holder (22) which engage in turn in a groove profile (52) on both sides of the slot (50) of the slit tube (49). The slit tube in turn ends in a collection channel (53) is also provided with a slot (54), (49) can be inserted so that the fiber optic cable (11) in the slot tube when these in the collection channel (53) is inserted. The collection channel made of rubber (53) extends down the standard length of the bus rail (20), wherein it in the BUS-carrying rail by means of a retaining profile in a corresponding retaining groove (55) (20) (over the entire standard length of the bus rail 20) is fixed.

According to Figures 7 to 10 leaves the fiber optic cable to the collecting channel (53) via a slot opening (56) in the collecting channel (53) and reaches the bus coupler at the entry point (57) and then enters at the inlet point (58) into the winding channel of the BUS coupler one. The non-definable integer Wicklungεlängen remaining length of standard optical fiber cable forms a loop (59), which is in the matching retaining grooves (60) on top of the bus coupler (31) is pressed (Figure 10). In this way, the sensor unit (61) consisting of the measuring chamber with the accommodated therein sensoriεchen parts (14, 15, 16), the fiber optic cable (11) and the bus coupler (31) is easily replaceable by the sensor from the can be pulled in the slit tube BUS support rail (20) removed and the fiber optic cable through the slit breakdown in the collecting channel (56) from the collecting channel (53) pulled out and further out of the slit tube (49) through the slot (50), even if the latter with his end of a piece into the collecting channel (53) is introduced, after which the measuring chamber (7) from the holding tube (2) is removable. In reverse order a replacement sensor unit (61) can be inserted back into the system. The slit tube (49) is fixed with its grooved profiles (52) in the collecting channel (53) so that the slot (50) in the slit tube (49) and the slot opening (56) in the collecting channel (53) come to lie exactly over each other.

depressed to retain the form-fitting manner to the bus line rail (18) BUS coupler (31) on the opposite side of the in the spring holding hook profile (42) locked spring assembly (29) according to Figures 11 and 12 in the rubber skin (30) of the BUS coupler forming a latching groove (62) into which a rubber in the skin of the bus line rail (18) formed locking hook (63) engages.

To release the acting as a bus coupler converter of this anchorage is in its upper surface a loop (80) (Figure 10) formed in the rubber skin (30) whereby, on pulling on the strap (80) embracing the the synthetic resin block (26) is rubber skin (30) at the location of the detent groove (62) so far stretched or retracted, that the detent hook (63) disengages.

to protect the solution of the problem, the electronic converter system against electromagnetic influences from outside and to prevent the other hand that electromagnetic Abstrah- averaging is carried out from the electronic circuits to the outside seen in the fact that, in particular according to Figures 7 to 15 by the use of fiber optic cables (11) no further shielding measures are required for transmitting the sensory signals from outside of the bus rail (20). By embedding the bus line rail (18) and the bus coupler (31) in the metallic BUS support rail (20) and by the use of a metallic support rails closure lid (64) with its lid hinge (65) in the BUS -Tragschiene (20) electrically engages and on the other side by a retaining lug (66) which is in the rubber body of the collecting channel (53) formed held down is (figures 7 and 9), the screening of the electronic system is in the interior from the BUS-support rails (20) and support rails closure lid (64) formed cavity, virtually ensuring compliance with appropriate, well-known earthing measures.

To possibly at the insertion slot (67) for the optical fiber cable between BUS support rail (20) and support rails closure lid (64) to retain penetrating electromagnetic waves is, the collecting channel (53) forming the rubber body made of a conductive rubber material.

As is particularly apparent from Figures 3 to 6, the electrical connection is between the bus line rail (18) which are introduced into the multiple mounted on the motor BUS support rails (20) via executed in tow form BUS-connection lines (68 ), which electrically connect the etched bus lines (BUS on the PCB 40) of the bus line rail (18) with each other. For this end the duplicate in a system flexible bus connection lines (68) on each side in a bus Leitungsschienenkoppler (69). These BUS Leitungsschienen- coupler (69) are similar to the bus coupler (31) is executed, but contain no electronic converter system (17), no winding channel (34) and no retaining grooves (60). This allows them to be executed in its dimensions smaller than the BUS coupler (31) and can thus be pushed through the connection member made of conductive rubber (71). The DIN rail intermediate portions (2) are made of the same metallic parts such as the BUS support rails (20) and also with a metallic lid (64) is provided (Figure 15), which in the closed state by the retaining nose (66) of the collecting channel ( 53) is kept closed. In these intermediate pieces the BUS support rails BUS-connection lines (68) are laid. The mechanical connection of the BUS-carrier rails with the DIN rail spacers (21) via a metallic connection tongue (70) which are inserted on both sides into the T-shaped receptacles (25) of the bus rail (20). In this way, BUS-support rails (20) and carrier rail are stabilized intermediate pieces (21) in its longitudinal direction of alignment with each other. As is apparent from Figures 3 to 4 as well as 14 and 15, the BUS support rails (20) and mounting rail spacers (21) by means of a connecting element (71) or intermediate piece of conductive rubber formed member can be connected to the slipping out of the connecting tongues ( to prevent 70) of the bus carrier rails (20) and the supporting rail spacers (21). The rubber not only prevents slipping out of the connecting tabs

(70) urged by elastic clamping, but it is also the BUS-support rails (20) and the supporting rail spacers (21) in the longitudinal direction. For this purpose the connecting elements (71) with metal clamping tongues (72) are provided, which are flat inserted in the longitudinal direction of the retaining grooves in the BUS-carrying rail and in the erection of the frame (71) (in the profile section plane in the retaining grooves (47) of the bus rail jam 20) because they are held slightly larger in size than the retaining grooves (47) of the bus carrier rails (20). In this way, the connecting element (71) is fixedly connected to the BUS-supporting rail (20).

By a special holding device between the connecting element (71) and collecting duct (53), the connecting element

(71) is prevented from tilting back into the flat insertion direction.

The DIN rail spacers (21) are connected to the connecting element (71) characterized in that a metal frame (73) with metal frame clamping tongues (74) in the DIN rail adapter with the fold open the lid (64) in the holding grooves (47) formed on the DIN rail spacers (21) are also present, similar as described above for the connecting element (71) described conductive rubber, flat introduced, then erected and in a frame groove (75) of the connecting element (71) are engaged. The BUS-connection lines (68) are designed to facilitate assembly of the system and to simplify the procurement of spare parts also having one, to bridge the greatest possible length of the mounting rail spacers (21) maximum required standard length. Since the distances between the BUS-support rails (20) and thus also the supporting rail spacers (21) to fill the gaps between the BUS-support rails (20), depending on engine size are of different lengths, is the excess length of the bus connection lines (68) wave-shaped in the support rails intermediate pieces (21) inserted. Over the entire length of the BUS standard mounting rails (20) are several bus coupling points (44) on the bus line rail (18) at the same moderately distributed. present on the end of the last bus rail (20) coupling point (44), a signal evaluation unit (76), similar to a bus coupler (31) to be mounted. This signal evaluation unit (76) contains an electronic evaluation circuit, similar to the electronic converter system (17) of the bus coupler (31). From this Signalauswerteinheit (76) is a connecting line (77) led out, which terminates in a plug connection (78), the transmission of signals to other not shown electrical devices as well as the power supply for the bus carrier rails (20) housed electronic circuitry for the BUS coupler (31) and the Signalauswerteinheit (76) possible.

The completion of the bus rail forms an end piece (19), which is shown in Figures 3 and 15 °. This connector (78) is again in a metal end plate (79) inserted in the frame groove (75) of a connecting element (71) at the outer end of a bus rail (20) instead of the metal frame (73) is inserted. In the same way, the other end of the combination of the BUS-support rails (20) is completed with an end piece with a Metallabschluss- plate (79) without plug-in connection (78).

Through the metal end plate (79) and the connecting member made of conductive rubber (71) as the DIN rail Endab- circuit prevents the penetration of electromagnetic waves at the end point of a support rail (20).

In a further embodiment of the system the BUS line signals are not evaluated within the support rail (20) but fed to an external evaluation unit. This is also via a plug connection (78) connected in the manner described above, but the coupler plug connection (78) by means of a BUS-Leitungsschienen-, similar to (69), to the bus line system (40) of the bus line rail (18 ) connected.

Another embodiment of the invention is to other, not the oil mist density measuring sensors via the bus system, consisting of the BUS-support rails (20), the BUS line rails (18), the DIN rail lock lid (64), the connecting element ( as well as to use 71) and the connecting element (71) (with metal end plate 79) the BUS-mounting rail nenhaltern (22), the slot hose lines (49) and the collecting channel (53) to other sensors with fiber optic signal line or copper line. In this case, the BUS-mounting clip (22) as previously described in the oil mist monitoring system are attached to the sensor holders themselves. In a further embodiment of the invention, but the various sensors slot hose lines (49) may also be for receiving the signal lines in specially designed guide channels with retaining tongues (51) for the slot tubes (49) are used, which are then in turn be mounted on the motor concerned particularly. BEZUGSZEICHKMLISTE

K bus coupler

L line

M measuring probe

S BUS rail

1 Engine Wall

2 guide tube for measuring chamber

3 venturi runner nozzle

4 crankcase atmosphere

5 sampling point for vacuum

6 outflow

7 Messkamraer

8 supply point for crankcase atmosphere

9 labyrinth

10 measuring distance

11 Fiber Optic Cable

12 optical fibers for light feed line

13 optical fibers for light return line

14 glass fiber bundle version

15 collective lens

16 triple reflector

17 Electronic converter system

18 BUS line rail

19 END BUS line rail

20 BUS-mounting rails

21 DIN rail spacers

22 BUS mounting clip

23 clamping nut

24 T-shaped Einschiebezunge

25 T-shaped receptacle with the BUS-rail

26 synthetic resin block

27 Flexible conductor foil

28 contact terminals flexfoil

29 contact springs

30 rubber skin BUS coupler

31 BUS coupler

32 slit-shaped opening BUS coupler

33 Hohlschnapphut

34 winding channel

35 holding lips

36 tubular opening

37 light emitting diode

38 Sensory light diode

39 BUS-mating contacts Backplane with etched bus lines BUS-metal rail spring retaining hook profile BUS rubber skin slotted bus Gegenkontaktöf f voltage (BUS coupling point) sealing bead rubber holding profile BUS retaining BUS rail elastic rubber connection slot tube slot slotted tube retention tongue groove profile at the slit tube collection channel retaining profile collecting channel retaining groove in the BUS-mounting rail slot breakdown in the collection channel entry point fiber optic cable to the bus coupler entry point fiber optic cable into the winding channel loop remaining length of fiber optic cable of the bus coupler retaining the BUS coupler sensor unit latching groove on BUS coupler latching hook supporting rail cap lid hinged holding tab insertion slot for fiber optic cable BUS cable BUS Leitungsschienenkoppler linkage tongue connecting element made of conductive rubber metal clamping tongues Metal1rahmen metal frame clamping tongues frame groove signal evaluation connecting line connector Metal end plate loop

Claims

1) A device for determining measured values, in particular the concentration of aerosol, projects into a chamber of a working machine, with a to the housing (1) of the working machine mounted in the chamber measuring probe (M) which L) with an outside (via a line disposed of the housing (1) evaluation device is connected characterized in that the line (L) to a bus coupler (K) is connected, in a bus rail (S) with a in a profile rail (20) arranged BUS- line rail (18) is arranged for forwarding the measurement data.
2) Device according to claim 1, characterized in that a guide tube (2) for interchangeable insertion of the measuring probe (M) is arranged on the housing.
3) Device according to claim 1 or 2, characterized in that the measuring probe is formed (M) (as an optical probe 10, 15,16), the L) (via an optical fiber connected to the bus coupler (K), the electronic converter (17) for converting into electrical signals the optical signals.
4) Device according to claim 3, characterized in that the bus coupler (K) having a light transmitter (37) and a light receiver (38), which (via a light feed line 12) and a light return line (13) with the probe (10 are connected 15, 16). 5) Device according to one of claims 1 to 4, characterized in that the bus coupler (K) comprising a synthetic resin block (26), in which the components and the connection of the line (L) is poured and the (with a rubber sheath 30 ) is surrounded from the contact terminals (28) for connection to mating contacts (39) of a bus line rail (18) of the bus rail (S) protrude.
6) Device according to claim 5, characterized in that the bus coupler (K) comprises a laterally circumferential winding channel (34) and (at the top of retaining grooves 60) for receiving excess lengths of the conductor (L).
7) Device according to claim 5, characterized in that the bus coupler (K) the contact terminals (28) surrounding the toothed profile (33) for medium-tight connection with the bus line rail (18) and latching means (62) for latching to the BUS -Leitungsschiene (18).
8) Device according to one of claims 1 to 7, characterized in that the bus rail (S) is a bus line rail (18) which a printed circuit board (40) (with connection contacts (39) for the BUS coupler K) and said on a metal rail (41) is attached, which has a from the bus coupler (K) oriented resilient hook profile (42) for form-locking engagement of the bus coupler (K).
9) Device according to claim 8, characterized in that the circuit board (40) and the metal bar (41) by a rubber sheath (43) are surrounded, that a terminal contacts (39) leaving free opening (44), more preferably a toothed profile (45 ) (for medium-tight connection of the bus coupler K) and latching means (63) for locking with the bus coupler (K). 10) Device according to one of claims 1 to 9, characterized in that the bus line rail (18) (in the supporting rail 20 is disposed) so resilient that it is biased against the used bus coupler (K) and with this one is oscillating system.
11) Device according to claim 9 and 10, characterized in that the rubber sheath (43) (on both longitudinal sides of the bus line rail attached rubber holding profiles (46) 18) via elastic rubber connections (48) (in corresponding holding sections 47) in the mounting rail (20) are inserted.
12) Device according to one of claims 1 to 11, characterized in that the support rail (20) (with a preferably hinged, to the bus coupler (K) covering lid 64) is closed.
comprising 13) Device according to one of claims 1 to 12, characterized in that the support rail (20) on the exit side of the conductor (L) a these receiving collecting channel (53) made of rubber into which the conductor (L) via a slot ( 50) and introduced (to the BUS coupler K) is continued.
14) Device according to one of claims 1 to 13, characterized in that the support rail (20) has a T-shaped receiving groove (25) in which a retaining tongue (24) of a rail holder (22) is inserted, with a with housing is connected to be connected to the guide tube (2).
15) Device according to one of claims 1 to 14, characterized in that the conductor is performed (L) (from the bus rail S) until the measuring probe (M) provided in one (with a longitudinal slot 50) tube (49). 16) Device according to one of claims 1 to 15, characterized in that the bus rail (S) by means of an intermediate piece (21) to another bus rail (S) is connectable, whereby a to be connected to the support rails for the mechanical connection (20,21) insertable metallic connection tongue (70) is arranged, which is associated with a rubber-elastic connecting element (71), the latter of the inner profile of the support rail (20) and the intermediate piece (21) preferably corresponds with excess and on both sides a respective metal frame (73 contains) having clamping tongues (74) which engage (in holder grooves 47) (in the support rails 20,21) by clamping.
17) Device according to one of claims 1 to 16, characterized in that the bus rail S) inserted at the ends in each case by a (in the supporting rail 20) tail is completed (which contains a rubber body as well as a metal plate (79) contains the clamping tongues (74) which engage in holding grooves (47) in the carrier rail (20) by clamping, the end piece optionally containing a plug-in connection (78) via a line (77) is connected to a BUS-Anschlusskoppler (76) which is used analogously to the bus coupler (31) in the bus rail (S) and to the bus line rail (18).
18) Device according to one of claims 1 to 17, characterized in that the bus rail has (S) for connecting to other units a BUS Anschlusskoppler (69,76), which analogously to the bus coupler (K) in the support rail (20) inserted and with the bus line rail (18) is connected, and a connection line (68,77) has.
EP19970938726 1996-09-13 1997-09-12 Device for determining measured values, specially the concentration of an aerosol in a closed chamber of a working machine Expired - Lifetime EP0925430B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH224496 1996-09-13
CH224496 1996-09-13
PCT/CH1997/000338 WO1998011331A1 (en) 1996-09-13 1997-09-12 Device for determining measured values, specially the concentration of an aerosol in a closed chamber of a working machine

Publications (2)

Publication Number Publication Date
EP0925430A1 true true EP0925430A1 (en) 1999-06-30
EP0925430B1 EP0925430B1 (en) 2002-06-12

Family

ID=4229233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970938726 Expired - Lifetime EP0925430B1 (en) 1996-09-13 1997-09-12 Device for determining measured values, specially the concentration of an aerosol in a closed chamber of a working machine

Country Status (7)

Country Link
US (1) US6137582A (en)
EP (1) EP0925430B1 (en)
JP (1) JP2001500206A (en)
KR (1) KR20000036122A (en)
CN (1) CN1085775C (en)
DE (1) DE59707517D1 (en)
WO (1) WO1998011331A1 (en)

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US7440121B2 (en) * 2006-09-20 2008-10-21 Lawrence Livermore National Security, Llc Optically measuring interior cavities
JP4633186B1 (en) * 2009-10-02 2011-02-23 ダイハツディーゼル株式会社 Oil mist concentration detection device
KR101500013B1 (en) * 2009-12-01 2015-03-09 현대자동차주식회사 Oil level switch and the crankshaft position sensor for one-piece connector
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CN102042945B (en) * 2010-11-03 2012-02-01 北京航空航天大学 Method for measuring oil mist concentration of closed gear box
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Also Published As

Publication number Publication date Type
CN1230241A (en) 1999-09-29 application
EP0925430B1 (en) 2002-06-12 grant
KR20000036122A (en) 2000-06-26 application
WO1998011331A1 (en) 1998-03-19 application
CN1085775C (en) 2002-05-29 grant
US6137582A (en) 2000-10-24 grant
DE59707517D1 (en) 2002-07-18 grant
JP2001500206A (en) 2001-01-09 application

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