DE102010021106B4 - Miniature fog generating plant - Google Patents

Miniature fog generating plant

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Publication number
DE102010021106B4
DE102010021106B4 DE201010021106 DE102010021106A DE102010021106B4 DE 102010021106 B4 DE102010021106 B4 DE 102010021106B4 DE 201010021106 DE201010021106 DE 201010021106 DE 102010021106 A DE102010021106 A DE 102010021106A DE 102010021106 B4 DE102010021106 B4 DE 102010021106B4
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Germany
Prior art keywords
heating
control electronics
miniature
production plant
mist production
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DE201010021106
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German (de)
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DE102010021106A1 (en
Inventor
Jacques Eschemann
Jörg Pöhler
Rüdiger Kleinke
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OTTEC TECHNOLOGY GmbH
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OTTEC TECHNOLOGY GmbH
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Priority to DE201010021106 priority Critical patent/DE102010021106B4/en
Publication of DE102010021106A1 publication Critical patent/DE102010021106A1/en
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Publication of DE102010021106B4 publication Critical patent/DE102010021106B4/en
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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00Model railways
    • A63H19/02Locomotives; Motor coaches
    • A63H19/14Arrangements for imitating locomotive features, e.g. whistling, signalling, puffing
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00Model railways
    • A63H19/02Locomotives; Motor coaches
    • A63H19/06Steam-driven locomotives; Engines therefor
    • A63H19/08Boilers for locomotives

Abstract

Miniature mist generation system for installation in a model system or a model device, with a heating element (1), a storage tank (3) for receiving a fluid (8) that can be supplied to the heating element (1) and atomized in the heating element (1), and a metering unit (2 ), via which the nebulizable fluid (8) can be metered to the heating element (1), and with control electronics (4) for controlling at least the metering unit (2), characterized in that the metering unit (2) is an electromotive gear pump (17 , 18), which can be actuated by the control electronics (4) to emit fog clouds, and the heating element (1) is controlled by the control electronics (4) heating temperature.

Description

  • The invention relates to a miniature mist production system for installation in a model plant or a model device according to the preamble of claim 1. The invention further relates to a locomotive for a model railway, a model building, a model plant, a model vehicle or a model steam ship with a such miniature fog generator.
  • In general, the invention relates to the field of model making and toys. The term "model plant" or "model facility" should be understood to mean an object which is a replica of a technical product on a smaller scale, i. H. a miniaturized replica is.
  • In the field of models, there is often the desire to make them as true to the original as possible in every respect. For example, in model steam locomotives or model steamships, it is desirable for steam to exit the chimney. There are already proposals for the field of model locomotives to evaporate oil via a heating wire. As an example, let us look at the DE 10 77 587 B or the US 6,280,278 B1 pointed. The known solutions are technically relatively simple, z. B. the oil to be evaporated is gravity-controlled or supplied to the heating wire by capillary action. Such effects are not very precisely controllable. Although the simple structure of such systems has the advantage that they can be made very small, but the operation and the controllability of such systems are not optimal to produce the most realistic impression of a steam-driven unit.
  • From the already mentioned US 6,280,278 B1 is a steam generating system for use in model facilities according to the preamble of claim 1 shows. There, a plunger pump is used.
  • Furthermore, from the US 4,303,397 A a mist generator with a storage tank 13 , a heating element 46 , an exhaust valve 77 and a pump 49 known. The temperature of the heating element 46 is controlled by a temperature controller 93 regulated. The pump 49 is designed as a centrifugal pump and constantly builds up pressure, the mist discharge is via the exhaust valve 77 controlled.
  • The invention is therefore based on the object to provide a miniature smoke generator for installation in a model plant or a model device, with a respect to the reality loyalty significantly improved impression can be achieved.
  • This object is achieved by the invention specified in claims 1 and 8. The subclaims indicate advantageous embodiments of the invention.
  • The term "fog" is used in this context as a collective term for all visible emissions, eg. As steam or smoke.
  • According to the invention, it is proposed that in a miniature mist production system according to the preamble of claim 1, the metering unit has an electric motor-driven gear pump. The integration of such a pump in a miniature mist generation system makes it possible to produce a much more precise and therefore more realistic delivery of the atomized fluid and thus the mist delivery, together with control electronics. In particular, a precise control of the mist delivery in a desired time cycle, z. B. depending on the driving speed of a model device achievable. Another advantage is that the precisely controllable mist delivery can be maintained under various operating conditions of the model facility or model facility, e.g. B. in the case of a model locomotive on uphill and downhill or in a model steamboat in high seas.
  • Advantageously, the electric motor driven pump is designed as a gear pump. This allows a low-delay metering of the nebulizable fluid to the heating element with a relatively high pressure. This makes it possible to generate high pressures in the short term, so to speak impulsively. As a result, can pulse-like blasts z. B. of steam locomotives or steamers replicate particularly realistic. The use of a gear pump has the further advantage that the metering unit can be realized very small, z. B. with a length of only 2 cm and a diameter of about 7 mm, which allows the installation of the miniature mist generation plant even with model systems or model facilities with high reduction scale, d. H. the installation in very small models.
  • According to an advantageous development of the invention, the storage tank, the metering unit and the heating element are adapted to use a nebulizable fluid which is or comprises a water-glycol mixture. This has the advantage over the use of oils as a fluid, that the nebulizable fluid is odor-free nebulizable, which allows a pleasant operation of the miniature fog generator system even in confined spaces without odor.
  • According to the invention, the heating element is controlled by the control electronics heating temperature. Advantageously, the control electronics for this purpose a z. B. as a software program or by circuit technology implemented temperature control include. Advantageously, the heating element has a temperature sensor which is connected to the control electronics. Hereby, the control electronics can detect the current heating temperature of the heating element and adjust the heating temperature to a desired value by controlling an output signal delivered to the heating element. According to an advantageous embodiment of the invention, a high-precision heating temperature control by the control electronics to a temperature interval of +/- 10 ° C with respect to a target temperature, Advantageously, the target temperature, for example, be set to 200 ° C.
  • According to an advantageous embodiment of the invention, the heating element has a passage for carrying out the nebulizable fluid, the output side having one or more nozzles. As a result, a secure atomization of the nebulizable fluid and a realistic output of the atomized fluid is guaranteed.
  • According to an advantageous embodiment of the invention, the heating element to a radiator, which is arranged outside the through-channel. This has the advantage that the nebulizable fluid does not come into direct contact with the heating element, such. B. in known solutions. This in turn has the advantage that contamination and wear of the heating element can be largely avoided. In addition, a particularly pleasant, odorless operation of the miniature mist generation system can be ensured by such a configuration.
  • According to an advantageous embodiment of the invention, the through-passage runs spirally in the manner of a thread in the heating element. This has the advantage that at a very compact construction of the heating element at the same time a large length of the passage channel can be realized, so that even with a relatively compact, small trained heating element safe nebulization of nebulizable fluid can be ensured. Another advantage is that the energy used for heating is used very efficiently, resulting in low heating energy consumption.
  • As can be seen, the heating element can advantageously be designed in the manner of a heat exchanger.
  • According to an advantageous embodiment of the invention, the pump is actuated in pulses by the control electronics at predetermined time intervals. This allows the delivery of small clouds of atomized fluid, which is a particularly realistic representation of the fog delivery of z. B. steam locomotives or steamers allowed. The control of the pulse-like actuation of the pump can be realized for example by a software program in the control electronics.
  • According to an advantageous embodiment of the invention, the pump is pulse-like actuated by the control electronics in response to a speed signal from a speed sensor which detects a movement speed of the model system or the model device, in particular with increasing speed with a correspondingly increasing pulse frequency. Also, this can increase the fidelity of the miniature fog generator.
  • The invention relates to advantageous model systems or model devices with a previously described miniature fog generator, z. B. a locomotive for a model railway, a model building, z. B. a residential building, a model factory, z. B. with chimneys, a model vehicle, z. As a truck, a passenger car or model tank, or a model steamboat.
  • The invention will be explained in more detail by means of embodiments using drawings.
  • Show it:
  • 1 a miniature fog generator and
  • 2 to 4 a heating element in different views and
  • 5 a detail detail of a heating element.
  • In the figures, like reference numerals are used for corresponding elements.
  • The 1 shows a miniature fog generator with a heating element 1 , a metering unit 2 , a storage tank 3 , an electronic control system 4 , a speed sensor 13 and an electrical power supply device 12 , The heating element 1 is via a hose or pipe connection 10 with a fluid delivery port of the metering unit 2 connected. A fluid suction port of the metering unit 2 is via a hose or pipe connection 9 with the storage tank 3 connected. In the storage tank 3 there is a nebulizable fluid 8th , The hose or pipe connection 9 reaches into the storage tank 3 until near the bottom of the storage tank 3 into it.
  • The metering unit 2 has an electric motor 17 and one to the electric motor 17 mounted gear pump 18 on. The gear pump 18 includes the mentioned Fluidansauganschluss and the fluid output port.
  • The heating element 1 is via an electrical line 16 with the control electronics 4 connected. The electric motor 17 is via an electrical line 15 with the control electronics 4 connected. The speed sensor 13 is via an electrical line 5 with the control electronics 4 connected. In addition, the control electronics 4 via an electrical line 7 with electrical energy from the electrical power supply device 12 provided. The electrical power supply device 12 may be, for example, a battery or the electrical power supply of a model locomotive.
  • The heating element 1 also has a temperature sensor 14 on, the z. B. outside of the heating element 1 may be attached or in the heating element 1 can be integrated. The temperature sensor 14 can z. B. be designed as a thermocouple type K or other PTC component or thermistor. The temperature sensor 14 is via an electrical line 6 with the control electronics 4 connected.
  • Depending on the control of the metering unit 2 gives the heating element 1 at output-side nozzles, the atomized fluid in the form of fog clouds 11 from.
  • The control electronics 4 receives as inputs the temperature signal of the temperature sensor 14 and the speed signal of the speed sensor 13 , By evaluating the input signals controls the control electronics 4 via output signals the electric motor 17 the metering unit 2 and the heating temperature of the heating element 1 , The operation of the electric motor 17 via the electrical line 15 for example, by delivering pulse-like turn-on. Accordingly, a temperature adjustment of the heating element takes place 1 by delivering an adjustable voltage or a pulse width modulated digital signal over the electrical line 16 to the heating element 1 ,
  • The speed sensor 13 For example, when using the miniature fog generator in a model locomotive, it is connected to a wheel of the model locomotive. So z. B. may be provided in the model locomotive a fork-type photoelectric sensor with an impeller on a wheel axle. By selecting the number of vanes of the impeller, signal generation corresponding to the number of steam-powered cylinders in the model locomotive serving as a model real-world locomotive can be set. So z. B. in a three-cylinder locomotive the impeller have six wings. As a result, six Raddrehimpulse be generated per wheel revolution, which of the control electronics, for example, in six pulse-like control of the electric motor 17 can be implemented, which in turn leads to six blasts of nebulizable fluid per wheel revolution. As a result, from the speed sensor 13 Raddrehimpulse to the control electronics 4 delivered by the control electronics 4 can be implemented in corresponding, simultaneous mist blasts of nebulizable fluid.
  • The function of the miniature mist generation system can advantageously be configured as follows. As soon as the control electronics receives a global switch-on signal via a control line from the model plant or model facility in which the miniature fog generator is arranged, the function of the miniature fog generator is activated. When the miniature mist generation system is activated, the temperature of the heating element first becomes 1 brought to a desired temperature, for. B. adjusted to about 200 ° C. This is done by the temperature sensor 14 emitted temperature signal in the control electronics 4 evaluated. In addition, the ambient temperature can be measured to perform cold junction compensation. Both temperature values are in the control electronics 4 fed to a control function, for. B. a P-controller. The P controller gives as a control value a pulse width modulated signal via the electrical line 16 to the heating element 1 from. It has been shown that an accuracy of the temperature control of about 2 ° C can be achieved hereby. Advantageously, in addition, in the control electronics 4 a circuit part for detecting a defect, for. B. a line break, the temperature sensor 14 be provided. As a result, an unwanted heating can be avoided in implausible temperature measurement.
  • Once the heating temperature of the heating element 1 is more than 180 ° C, is in the control electronics 4 enabled the function for pump control. The pump control function uses the input from the speed sensor 13 supplied wheel pulses such that at each wheel pulse about synchronously a cloud of fog 11 is delivered. For this purpose, a pulse-shaped signal to the electric motor 17 issued. The pulse length and thus also the pumped amount of nebulizable fluid is determined as a function of the temperature of the heating element and the frequency of the wheel pulses. This can ensure that a regular release of fog clouds 11 done without dropouts. There is first a measurement of the frequency of the wheel pulses. The period of these pulses is using a in the control electronics 4 stored characteristic in a pulse length for the actuation of the electric motor 17 implemented. In addition, the pulse length becomes dependent on the heating temperature of the heating element 1 adapted using a PI controller. Advantageously, the I component of the PI controller allows a readjustment in the case of a possibly blocked through passage of the heating element 1 ,
  • In an advantageous embodiment, every third pulse of the over the electrical line 15 to the electric motor 17 output signal output compared to the remaining pulses be extended. This can simulate a dominant stroke in a model locomotive. Be advantageous from a certain frequency of the wheel pulses, z. B. from 6 Hz, no single shocks generated more. Above this frequency, an independent of the input frequency clock of the pulses of the output signal to the electric motor 17 generates a uniform fog output from the heating element 1 to create.
  • The miniature fog generator described can be realized with overall dimensions of a few centimeters, the miniature fog generator here without the storage tank 3 occupies a volume of not more than about 3 cm 3 . As a result, the miniature fog generator can be installed in relatively small models, z. B. in model locomotives in the scale of 1:87 (lane H0).
  • The 2 shows the heating element 1 in lateral view. Visible is a stepped housing with a sealing portion 20 and one with compared to the sealing portion 20 smaller diameter formed heating section 21 , The sealing section 20 goes over a conical area in the heating section 21 above. The sealing section is advantageous 20 and the heating section 21 formed with a circular cross-section. At the heating section 21 is the temperature sensor 14 arranged. At the heating section 21 opposite side of the sealing portion 20 There are electrical connections 23 . 24 that with one in the heating section 21 arranged electrically operated heating cartridge are connected. In addition, there is at this point a trained in the form of a hose nozzle inlet port 22 for supplying the nebulizable fluid 8th ,
  • The 3 shows the heating element 1 according to 2 in the viewing direction C, ie from above. Visible are four over the circumference of the heating section 21 evenly distributed nozzles arranged 26 , which serve to the outlet of the atomized fluid. Moreover, in the 3 a section AA indicated. The 4 shows the heating element 1 according to the 2 and 3 in cut along the section line AA perspective view.
  • In addition to the elements described above is in the 4 recognizable that in the sealing section 20 a seal 32 , z. B. a potting compound, is arranged Also visible is a spiral on the inside of the heating section 21 extending passageway 31 that with the inlet connection 22 Connected is. The passageway 31 ends on the inlet port 22 opposite side, ie at the top of the heating section 21 , in the jets 26 , Inside the heating element 1 is an electrically operated heating cartridge 35 arranged in a heat-conductive casting compound 30 is embedded.
  • The 5 shows the in 4 marked section B in an enlarged view. Visible is the upper portion of the heating section 21 with the passageway 31 , the heating cartridge 35 , the casting mass 30 as well as the nozzles 26 ,

Claims (8)

  1. Miniature mist production plant for installation in a model plant or a model facility, with a heating element ( 1 ), a storage tank ( 3 ) for receiving a heating element ( 1 ), in the heating element ( 1 ) nebulizable fluid ( 8th ) and a metering unit ( 2 ), over which the heating element ( 1 ) the nebulizable fluid ( 8th ) metered is metered, and with a control electronics ( 4 ) for controlling at least the metering unit ( 2 ), characterized in that the metering unit ( 2 ) an electric motor driven gear pump ( 17 . 18 ) provided by the control electronics ( 4 ) is operable to dispense fog clouds, and the heating element ( 1 ) by the control electronics ( 4 ) Heating temperature is controlled.
  2. Miniature mist production plant according to claim 1, characterized in that the storage tank ( 3 ), the metering unit ( 2 ) and the heating element ( 1 ) for the use of a nebulizable fluid ( 8th ), which is or comprises a water-glycol mixture.
  3. Miniature mist production plant according to one of the preceding claims, characterized in that the heating element ( 1 ) a passageway ( 31 ) for carrying out the nebulizable fluid ( 8th ), the output side one or more nozzles ( 26 ) having.
  4. Miniature mist production plant according to claim 3, characterized in that the heating element ( 1 ) a radiator ( 35 ), which outside the passageway ( 31 ) is arranged.
  5. Miniature mist production plant according to claim 3 or 4, characterized in that the passageway ( 31 ) spirally in the manner of a thread in the heating element ( 1 ) runs.
  6. Miniature mist production plant according to one of the preceding claims, characterized in that the pump ( 17 . 18 ) from the control electronics ( 4 ) is pulsed at predetermined intervals.
  7. Miniature mist production plant according to one of the preceding claims, characterized in that the pump ( 17 . 18 ) from the control electronics ( 4 ) in response to a speed signal from a speed sensor detecting a movement speed of the model plant or the model device, the control electronics ( 4 ) is fed, pulse-like actuated, in particular with increasing speed with a correspondingly increasing pulse frequency.
  8. Locomotive for a model railway, model building, model plant, model vehicle or model steamboat with a miniature mist production plant according to any one of the preceding claims.
DE201010021106 2010-05-20 2010-05-20 Miniature fog generating plant Active DE102010021106B4 (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107089237B (en) * 2017-04-06 2020-02-28 浙江水利水电学院 Sightseeing train driving system driven by internal combustion engine
CN107054386B (en) * 2017-04-06 2020-02-21 浙江水利水电学院 Steam-driven sightseeing train driving system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686172A (en) * 1949-06-27 1953-01-21 Cyril Lawrence Fry Improvements in and relating to toy and model locomotives
DE1077587B (en) * 1959-01-27 1960-03-10 Eberhard Seuthe Od device for generating clouds of smoke through evaporation of oils. The like., In particular for toy locomotive
US3178850A (en) * 1961-01-05 1965-04-20 Earle R Brown Electrical smoke generator
CH401788A (en) * 1961-11-02 1965-10-31 Seuthe Eberhard Device for generating steam, in particular for use in a toy
US4303397A (en) * 1980-08-08 1981-12-01 The United States Of America As Represented By The Secretary Of The Navy Smoke generating apparatus
DE3525508C2 (en) * 1985-07-17 1989-03-23 Ludwig Weber
DE4327009C2 (en) * 1993-08-12 1998-01-29 Thomas H Stienen Diving device for model submarines
US6280278B1 (en) * 1999-07-16 2001-08-28 M.T.H. Electric Trains Smoke generation system for model toy applications
US20100009591A1 (en) * 2008-07-10 2010-01-14 Michael Trzecieski Toy Vehicle Having Smoking Tire Function

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686172A (en) * 1949-06-27 1953-01-21 Cyril Lawrence Fry Improvements in and relating to toy and model locomotives
DE1077587B (en) * 1959-01-27 1960-03-10 Eberhard Seuthe Od device for generating clouds of smoke through evaporation of oils. The like., In particular for toy locomotive
US3178850A (en) * 1961-01-05 1965-04-20 Earle R Brown Electrical smoke generator
CH401788A (en) * 1961-11-02 1965-10-31 Seuthe Eberhard Device for generating steam, in particular for use in a toy
US4303397A (en) * 1980-08-08 1981-12-01 The United States Of America As Represented By The Secretary Of The Navy Smoke generating apparatus
DE3525508C2 (en) * 1985-07-17 1989-03-23 Ludwig Weber
DE4327009C2 (en) * 1993-08-12 1998-01-29 Thomas H Stienen Diving device for model submarines
US6280278B1 (en) * 1999-07-16 2001-08-28 M.T.H. Electric Trains Smoke generation system for model toy applications
US20100009591A1 (en) * 2008-07-10 2010-01-14 Michael Trzecieski Toy Vehicle Having Smoking Tire Function

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