DE458314C - Engine system for aircraft - Google Patents

Description

For aircraft, it is known to have the fuselage tip together to facilitate transport to make the engine removable, and interchangeable engine units are also known, in which the motor and its accessories become a closed and manageable one Whole is united. On the other hand, you also have motors directly in the wings built-in.

ίο The invention consists in that the engine is assembled together with accessories in a housing, which as a whole on a wing profile is attachable. This results in the possibility of such engine assemblies

IS gate easily attached to existing aircraft, in particular also on gliders and other small aircraft by just adapting to a wing profile because of the extensive similarity of all such profiles, one in all cases allows simple and safe cultivation, uild by with such an attachment also with the Motor directly connected propeller comes to such an altitude that he himself at very low chassis secured against ground contact. At the same time comes the center of gravity of the engine system in close proximity to the buoyancy device, so that Stability disorders are prevented. The result is an engine system that is lightweight can be used on various types of aircraft and so an adaptation of the Aircraft at different operating conditions made possible, by virtue of which also scientific investigations in particular can be carried out more productively and simply.

A valuable detail arises by making the engine more common Internal combustion engine, the carburetor is provided in the space between the engine or tank and the lower edges of the housing. As a result, despite the aerodynamically favorable low design of the entire system the fuel flow naturally to the carburetor, and there are all tangles and operational uncertainties in this regard prevented.

It is also valuable to attach the tank in the using a pull propeller rear housing part and the motor together with front cooler in the front housing part, so that the propeller, sitting directly on the motor shaft, runs close to the profile nose. here intermediate gears are saved, and the propeller is very reliable Storage by placing the engine supporting it straight on the toughest parts the wing is supported.

A valuable individual design finally consists of ribbons or ropes, by means of which the housing can be bolted to nodes on the wing. This type of attachment results with impeccable reliability

Claims (4)

good adaptability, in that the straps are flexible and the wing constructions are so similar to one another that in no case noticeable adjustment work is necessary. The drawing illustrates the invention using an exemplary embodiment with a pull propeller, specifically in longitudinal section and top view. ίο In a substantially rectangular cross-section, a housing is composed of side walls i, which converge in a streamlined manner at the rear, and upper wall 2 and lower wall 3, which also converge in a streamlined manner towards the rear, while at the same time the lower wall 3 is adapted to a conventional airfoil profile (shown in phantom) . At the front, the housing formed in this way is closed off by a front cooler 4, and a motor 5 sits close behind this in such a way that it carries a traction propeller 6 on its shaft directly in front of the cooler 4 and in front of the profile nose. Behind the engine, a fuel tank 7 is installed in the housing 1 to 3, and under the engine a carburetor 8 is so deep that it receives the fuel from the tank with a natural gradient; the inflow line is shown only as line 9 for the sake of clarity, and the carburetor tubes are also only indicated as lines 10. The lateral housing walls 1 carry pressed-out guide surfaces 11 which are open to the rear and which release the air flowing to the radiator to the outside and, under the influence of the airstream and propeller wind, intensify the cooling air flow in a sucking manner. At the rear lowest end of the housing, a drain pipe 12 is attached, which drains all fuel that comes from spilling when filling the tank or leaks in the tub-like housing harmless to the rear over the wing. A similar discharge can also expediently be routed from the front space below the engine under the wing in order to safely divert any overflowing fuel of the carburetor from this space. Straps or wires 13, 14, 15, 16 are attached to the mainly stiffened points of the housing walls on each side, and these are combined in groups in eyes 17, 18, by means of which they can be bolted to the main nodes of the wing; for example, in the case of wings that consist of wings that can be individually attached to a center piece, the nodes used to attach the wings are used directly; in this case no openings in the wing are necessary, while otherwise the strips are expediently passed individually through corresponding openings in the wing in order to be connected to the bolting points with individual eyes. The same overall arrangement is also suitable for attaching a pusher propeller by placing the tank at the front and the engine at the rear. As a result of the good accessibility for a flow of cooling air, air-cooled motors can also be used. Ραϊεν τ claims: 1. Engine system for aircraft, especially small aircraft, in which the engine together with accessories and fuel tank is assembled in a removable housing, characterized in that Lower edges or bottom of this housing are adapted to a wing profile. 2. Motor system according to claim 1, characterized in that in the intermediate space is provided between the engine or tank and the lower edge of the housing of the carburetor (8). 3. Motor system according to claim 1 and 2, characterized in that under training with the towing propeller, the tank at the rear and the engine and front cooler at the front are arranged in such a way that the immediately The propeller on the motor shaft is running close to the profile nose. 4. Motor system according to claim 1, 2 or 3, characterized in that the Housing straps or ropes, by means of which it is attached to nodes of the wing can be bolted down. 1 sheet of drawings.