DE509856C - Circulating oil tank for vehicle engines - Google Patents

Description

Circulating Lube Oil Reservoirs for Vehicle Engines The invention relates to Lining medium containers for vehicle engines, especially aircraft engines with circulating lubrication, also such finite hanging cylinder arrangements.

With some Fährzeug-, especially with aircraft engines, it is because of the Occurring inclines advantageous to keep the crank housing oil-free and that To accommodate lubricating oil in a special container. So far such containers have been used Installed at any point using pipelines independently of the engine. This so-called dry sump lubrication is, especially with the hanging engine, due to the downward facing cylinders.

Accomodating such containers makes particular difficulties the ventilation device. Because an aircraft has steep inclines, especially after above and below, the known ventilation means are not sufficient, the To prevent oil leakage. It is common to use the filler neck to compensate for the . Air pressure necessary (-iffiting to be provided. Under the stated conditions this would have to be placed so high by extending the filler neck accordingly be that with no inclination occurring and also not under the effect of accelerations an oil leak can occur. Such a nozzle or a corresponding air pipe would protrude far from the inside of the bonnet, disturb its smooth shape and make you create considerable drag. In addition, in unusual locations, z. B. the supine position. does not prevent the exit.

The arrangement according to the invention eliminates these disadvantages in a simple manner Way. in both a hanging and a standing arrangement of the motor.

This is shown for example in the drawing, which one Aircraft engine with hanging cylinder arrangement in side view, the associated one above shows the oil reservoir lying on the crankcase in a longitudinal section.

It is r the crankcase, a the cylinder block. 3 the cylinder head, d. the end flange of the crank, 5 the oil tank with the filler neck 6, the is tightly closed by the cap 7 by means of a thread. In the container 5 are the pipes S and 9 inserted tightly at the penetration points. The tube g is inserted into the upper wall of the container at the point marked io, while the end marked i i opens into the crankcase. At your pipe 9 is the Reverse the arrangement by placing the right end against the top wall of the container 5 connects and the left end in the crank: itise leads.

It's easy to see. that at a position of the engine which corresponds to the steep descent, the oil fills the front part of the container and that in this case its exit is excluded. The tube 8 fills: I to the Height of the oil level with i> I, while the upper part of the pipe with its end i r serves as a vent pipe, being there in the usual way Crankcase communicating with the outside air opens. Even under the influence no oil exit can occur from accelerations.

The pipe 9 acts in the corresponding positions of the engine during the upward flight in the same way, and it is easy to see that, in no situation, neither when the motor is in the supine position, 01 can get outside.

By appropriately extending the pipe end i i and the opposite one End of the tube 9 in the crankcase is prevented when the aircraft is in the supine position Collective oil gets into one of the lines and disrupts ventilation.

The drawing shows the device -only schematically. The lines 8 and 9 are expediently relocated to the interior of the container; the filler neck 6, 7 can be of any desired shape and attached at any suitable location will.

The arrangement shown here can also be used for standing Motors are applied. A tank that is closed on all sides forms in this case the lower end of the crankcase, which is equipped with suction devices of the collection oil is provided. In this case, the venting tubes protrude so far up into the crankcase so that the oil cannot penetrate.

The direct connection of the container to the engine and the Use as a cover of the crankcase has the advantage that long pipelines can be avoided in favor of operational safety.

The invention can analogously also in the case of containers which are separate from the engine be applied.

Claims (2)

PATENT CLAIMS: i. Circulating lubricating oil containers for vehicles, in particular Aircraft engines, characterized in that a ventilation line from each end of the container (5) (8, 9) leads over the other end into the interior of the crankcase (i), so that at In all inclines, the pressure in the container is equalized with the outside air and the exit of 01 is prevented. 2. Running lubricating oil tank according to claim i, characterized in that the pipe ends (i i) so far into the crankcase (i) that when the aircraft is in a supine position, no accumulated oil protrudes from the crankcase can pass into the container (5).