DE104551A - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS $ 36 heating.

ROBERT WINTER in HANNOVER. Combustion regulator for stoves.

Patented in the German Empire on March 26, 1898.

The present invention relates to a combustion controller for ovens, the purpose of which is to bezw by the suction effect of the oven. of its hot gases escaping Air flaps open in a known manner to the gases when they reach a certain level of speed exceed to mix with outside air and thus draw down the fire in the furnace respectively to regulate. The speed of the waste gases depends, as is known, on two circumstances, namely on the one hand on the due to the position and height of the chimney, but also from the effect of the more or less intense combustion process in the furnace itself. Under Conditions which depend on the nature and movement of the outside air the draft in the chimney can be just as great when the stove is not heated than when it is heated oven under other external conditions. In the former case you would have to the air flaps even under the draft conditions that are very favorable for the furnace with a lot open to a lesser degree of combustion in the furnace than in the second case. It makes sense that such a simple device in which the flaps are moved only by the speed of the pull the exit gases respectively. due to the non-adjustable suction effect of the latter on the flaps opened on some days of the year or in some areas would not be useful at all.

It is therefore the subject of the invention so arranged that the suction effect of the Chimney on the air flaps can be adjusted in such a way that only with a certain Degree of combustion and the current external conditions the flaps enter the hot combustion gases and so reduce the draft in the furnace and regulates. "

The accompanying drawing shows an embodiment of the combustion controller, which oven and controller can be transported individually and are therefore easy to separate.

The device consists of the housing W, which is closed at the bottom by a base with a floor W ^L and at the top by the ceiling W ¹ with a discharge nozzle W ⁰ . A cylinder h provided with slots ζ is also attached to the ceiling and is extended at the bottom into the smoke chamber j which is closed off from the housing W. Around the cylinder h there is a perforated slide g which can be rotated by means of a handle e , the slots ρ of which coincide with the slots i of the cylinder h and which more or less close depending on the position of the slide. The rest of the space enclosed by the side walls of the housing, the floor W ¹ and the ceiling W ^ forms an air chamber a, the lower side openings of which are closed by flaps k , which, at a certain excess pressure of the outside air, move over the air in the chamber α open automatically and let air enter it until the negative pressure in it is lifted and there is internal and external equilibrium.

Claims (2)

In the illustrated device of the draft regulator that exists per se, one wall of the smoke chamber j is provided with a round hole and the exhaust pipe b of the furnace belonging to the regulator is inserted through it. If both are no longer used, the insertion hole c in the wall j is closed by the otherwise lying flap d which is held down by the tube b and which is under the action of a spring. As can be seen, the smoke gases flowing out of the furnace go into the smoke chamber j, from there into the cylinder h and through the ceiling W2 into the smoke pipe (not shown) located therein and to the chimney. The latter therefore acts on the furnace by means of the cylinder h and the smoke pipe. If the slots i of the cylinder h are completely closed by the webs of the slide g, the chimney only acts on the stove because the smoke chamber j is completely closed off from the air chamber α. If the pull is too strong, the slide g is gradually transferred from the closed position (Fig. 3 left) to the fully open position (Fig. 3 right). In each of these different positions, the hot gases drawn off have a suction effect on the air chamber α, which is now connected to the smoke chamber j through the slits ρ and i, with a force that depends on the course of the furnace and the size of the free openings Cylinder h depends. The negative pressure resulting from this sucking action in the chamber α opens the flaps k, the air flows from the outside into the air chamber, heats up on the walls of the smoke chamber j and the slide g and mixes in the cylinder h with the outgoing gases. The temperature of the gases drops, which also reduces their rising force and their sucking effect on the air chamber α. In the latter, therefore, the pressure increases again up to equilibrium inside and outside. Thus, by turning the slide g, you can soon find the position at which the combustion reaches the desired degree and any increase in the draft caused by external influences can open the air flaps and thereby result in an immediate decrease in the draft. With the device shown, a greater utilization of the heat of the waste gases can easily be achieved in the following way: At the top in the walls of the housing W openings 0 are made, on which slide ti are located. On these are teeth n1, in which the teeth g1 located on the slide g engage, so that the movement of the slide g and η is effected at the same time. In the completely closed position of the slide g, the two slides η are open. The flaps k are expediently opened somewhat so that air can enter the chamber α, which heats up on the walls of the smoke chamber j and the cylinder h and flows out through the openings 0 into the vicinity of the regulator. When the slide g is opened, the pull acts on the flaps k, with part of the air then flowing out of the chamber α into the cylinder h and another part flowing out through the openings 0. From the foregoing it can be seen that the controllability of the sucking effect of the exhaust gases on the air chamber α by means of the slide g offers the possibility of removing the furnace fire from the effect of the external influences on the chimney draft in such a way that, with a certain size of the latter, any desired fire does not occur can only be established but also maintained. From the foregoing it also emerges that in the case of a stationary furnace, its exhaust pipe b can be firmly connected to the regulator, the pipe b not having to enter the smoke chamber j, but simply being connected to it. It goes without saying that the present combustion controller can be modified in many ways from a structural point of view without affecting the essence of the invention described. Pa te ν τ claims: 1. A combustion regulator for stoves, characterized by a smoke chamber (j) to be connected to the stove and the chimney, which, in order to more or less withdraw the stove fire from the action of the variable chimney draft, by means of a slide (g) or the like Air chamber (a) can be connected so that the air supply flaps (k) of the latter are automatically opened in a known manner when the slide is open due to the sucking effect of the exhaust gases entering the smoke chamber and the gases are thus supplied from outside with a controllable amount of air corresponding to the slide position, while the draft in the chimney with the shutter closed acts only on the stove due to the closure of the smoke chamber from the air chamber. 2. An embodiment of the combustion controller identified under 1., in which the connection between the air chamber (a) and smoke chamber (j) is made by a drum slide (g) provided with slots (p) , which on a cylindrical attachment (h) of the smoke chamber equipped with corresponding slots (i) is rotatably arranged.
An embodiment of the under ι. and 2. characterized combustion controller , in which openings (0) are provided in the upper part of the air chamber (a) , which are exposed by the slide (n) forced with the drum slide (g ) when the drum slide is closed, for the purpose of mediating in the jacket of the air chamber arranged air flaps (k) and the slide (n) to produce a kind of convection heating. For this purpose ι sheet of drawings.