DE202009005910U1 - Reaction drive for a water toy - Google Patents

Abstract

Reaction drive for a water toy consisting of two or more than two Pulsationskesseln, characterized in that the Pulsationskessel and their volumes via short flow channels, but preferably only two Pulsationskessel with a flow channel, are interconnected and equipped with a total of at least two outlet pipes.

Description

The state of the art

The most common form of use of reaction drives for Water toys is the candle boat drive.

Candle booster drives, also known as rattles or Tuckerboats, are known with insignificant deviations for more than 80 years as tin toys. The first patent was awarded in 1916. (Please refer Steam 25: Neckar-Verlag 1995, ISBN 3-7883-0645 9 )

Of the Drive, physically a reaction drive or recoil drive, consists of a round, rounded or rectangular Pulsationskessel (Short form boiler), closed by a thin sheet metal membrane.

Each two pipes, referred to in the text as outlet pipes, provide one Connection from the boiler to the water. They end up at the stern of the water toy, just below the water surface.

By the heating of the boiler filled with water and air creates a continuous pulsation process, a change of overpressure and negative pressure resulting in intense water jets, the so-called water jets, leads to the Rohraustritten and the Candle boat drives.

striking is that the known candle boat drives only with a single Boiler, so no boiler pair work and all variants in about have equal drive power.

These Drive power of a single boiler is the reference, when in the text of "enlarged" and "double" performance the speech is.

The Shortcomings of the reaction drive for a water toy are its low power, which is just enough to z. B. a Driving toy ship for the "bathtub operation" and its extremely poor efficiency of less than 1 percent.

Of the in the protection claim specified invention is based on the problem a reaction drive for a water toy, z. For example to develop a candle boat, with larger, z. B. with double or even greater drive power.

This Problem is listed with the protection claim no. 1 Characteristics solved.

in the Following are three ways to increase performance represented by reaction drives for a water toy.

1. Performance improvement through improvement the boiler efficiency.

A Improvement of the boiler efficiency is only in very small limits possible and does not lead to a remarkable Increase in performance as performed by the author Show experiments.

2. Performance increase by enlargement the supplied heat energy, in conjunction with or without adapted boiler enlargement.

Appropriate Experiments show that in this approach, the performance Although it increases, the already very low boiler efficiency but further deteriorated.

3. Performance increase through use of two or more than two boilers, each with its own boiler heating.

• – Die Wasserjets an den Rohrenden der Austrittsrohre arbeiten bei Verwendung von mehr als einem Kessel nicht synchron, sie beeinflussen sich negativ, und es treten entsprechende Leistungsverluste auf.
• – Außerdem wird der Platzbedarf unterhalb der Kessel für die Kesselbeheizung durch die vier oder mehr als vier Austrittsrohre erheblich eingeschränkt.
• – Auch der Befüllvorgang der zwei oder mehr als zwei Kessel, der für das richtige Funktionieren der Anlage wichtig ist, wird aufwendiger.

This principle feasible way throws the following difficulties in the technical implementation
or disadvantages:

• - The water jets at the pipe ends of the outlet pipes do not work synchronously when using more than one boiler, they have a negative influence and corresponding power losses occur.
• - In addition, the space required below the boiler for boiler heating by the four or more considerably reduced as four outlet pipes.
• - The filling of two or more than two boilers, which is important for the proper functioning of the system, is more expensive.

Of the newly developed reaction drive for a water toy works with two or more than two fluidic together to one unit connected Pulsationskesseln and closes the disadvantages or deficiencies listed in point 3 out

THE INVENTION

response drive for a water toy, z. For a candle boat, with larger, z. B. double or even larger Drive power, consisting of two or more than two fluidic pulsation boilers connected together in a unit.

The Basic form of the drive, cf. Drawing, consists of two Pulsationskesseln (K1) and (K2), which are arranged side by side and over a Boiler connection (V) are fluidically interconnected. This connection makes two originally independent d. H. isolated pulsating single boilers a pair of boilers, in which at any time a constant pressure balance between The boilers are taking place, which are now inevitably shared and pulsate synchronously. In addition, due to the Connecting pipe, in each case boilers omitted an outlet pipe.

The Connecting pipe should be as short as possible, a small one Have cross-section and no direct heating over experience the boiler heating. These measures will the additionally participating in the oscillation volume limits and the heat losses over the pipe outside surface minimized.

The total pulsation capacity of the boiler (K1) and (K2) is of two Exhaust pipes (A1) and (A2) taken.

Furthermore is important for the function of the reaction drive that during the filling process, the boiler is not complete can be filled with water, so always Water and air in an optimal relation to the pulsation process involved. This is achieved in which the outlet pipes and a connecting pipe (R) according to the drawing dimension (E) Off-center be tied into the boiler.

Everyone the two boiler works with this construction with its own Heating. By eliminating the two inside outlet pipes (usually each boiler is known to have two exhaust pipes) arises under the boiler additional space for the inclusion of a device for boiler heating.

The filling process of the boiler pair can, as known in connected vessels, take place via a single outlet pipe,
The pipe connections to the boilers is expediently made as a solder joint (L).

The Boiler pair achieves roughly the drive power of two single boilers

The described basic form is a particularly advantageous embodiment the invention.

The Drawing shows this basic form.

The described operation of the connected boiler remains basically even if the number of connected boilers to three or more is magnified and even if each kettle, described differently from the basic form, with two Outlet pipes is equipped.

Also the different shape of the boiler, to the introductory note was, does not matter.

Application and benefits

• - The performance of the reaction drive is about twice as large as in the described basic form that of a single boiler and increases through adding more kettles.
• - The one available for heating standing room below the boiler enlarged itself by the elimination of at least two outlet pipes and simplified the mounting of the heating device.
• - The filling process of the boiler with water takes place as in a single boiler in a simple way only a single pipe.

Water toys, z. B. candle boats, equipped with a reaction drive of the type described, can be larger be built, get more carrying capacity and drive faster.

For the installation of a generous heating system and an additional remote control sufficient bearing capacity and space is created. LIST OF REFERENCE NUMBERS No reference numeral Meaning of the reference symbol 1 A1 Outlet pipe no. 1 2 A2 Outlet pipe no. 2 3 e Specifies the amount by which the outlet pipes are eccentrically incorporated into the boiler 4 K1 Boiler No. 1 5 K2 Boiler no. 2 6 V Connecting pipe, it connects the two boilers K1 and K2 7 L Solder connection between the boilers and the connecting pipe 8th 'X' Detail, shows the integration of the connecting pipe and an outlet pipe into a boiler (on an enlarged scale)

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited non-patent literature

• - Steam 25: Neckar-Verlag 1995, ISBN 3-7883-0645 9 [0002]

Claims (8)

Reaction drive for a water toy consisting of two or more than two Pulsationskesseln, characterized in that the Pulsationskessel and their volumes via short flow channels, but preferably only two Pulsationskessel with a flow channel, are interconnected and equipped with a total of at least two outlet pipes. Reaction drive according to claim 1, characterized in that that the two have a short flow channel connected Pulsationskessel (K1 and K2) a rectangular, rounded or preferably have a round outer shape, with a Outer diameter of 30 to 50 mm and a boiler height from 2 to 5 mm. Reaction drive according to one of the preceding claims, characterized in that the two pulsation boilers (K1 and K2) right-angled (to its connecting axis) and symmetrical with each an outlet pipe (A1 and A2) are connected, both at the rear of the water toy just below the water surface end up. Reaction drive according to one of the preceding claims, characterized in that the two pulsation boilers (K1 and K2) and their volumes connected by a short connecting tube (V) are, whose volume is small compared to the boiler volume. Reaction drive according to one of the preceding claims, characterized in that the distance between the outlet pipes (A1 and A2) is about 60 mm and the pipe inside diameter the outlet pipes (A1 and A2) a size of 2.5 to 4 mm. Reaction drive according to one of the preceding claims, characterized in that the connection points of the outlet pipes (A1 and A2) and the connecting tube (V) to the Pulsationskesseln (K1 and K2) (seen in the direction of movement of the water toy) lying in front of or on the center of the boiler. (See dimension 'E' in the drawing) Reaction drive according to one of the preceding claims, characterized in that the connection points of the connecting pipe (V) on the pulsation boilers (K1 and K2) in the middle between the connection points the outlet pipes (A1 and A2) are located. Reaction drive according to one of the preceding claims, characterized in that below the two Pulsationskessel (K1 and K2) a free space, each with a diameter of about 30 mm and a height of about 40 mm is present, thought for a device for boiler heating.