DE238848C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 14 ^ ·. GROUP

JOHANN STUMPF in BERLIN.

controlled steam outlet openings.

Patented in the German Empire on March 23, 1909.

For this registration, the examination according to the Union Treaty of

March 20, 1883

Recognized on December 14, 1900 on the basis of the registration in France on April 15, 1908.

the priority

In locomotives with AC cylinders, the exhaust steam comes out gradually opening up the channels through the slide relatively quiet to the exhaust pipe, the latter still in communication with the cylinder during a large part of the piston return remain. There is therefore a relatively constant, gentle outflow. In the case of the DC machine, on the other hand,

ίο the working piston when opening the outlet " slits exposed a somewhat oversized exit cross-section, and the Sudden and intermittent exhaust, especially since the piston is still open when the Outlet slots faster than the slide moves. The sudden exhaust is so more expressive than temporarily separating the interior of both cylinders from the exhaust pipe is. Apart from the resulting popping exhaust noise, this has intermittent noise Outflow too strong a pulling effect on the furnace, so that the fire is made to dance on the grate, so to speak.

According to the invention, the inconveniences should not be caused by special dimensioning of the exhaust head should be avoided, especially since it is advisable to use the exhaust head for normal work to dimension the locomotive; rather, it should only contain part of the steam usual way to be discharged up through the exhaust pipe, while a second Steam flows out through a special opening at the bottom.

The two partial flows can be determined by corresponding dimensions of the exhaust openings so dimensioned against each other that on the one hand the effect on the actual exhaust is weakened or is regulated, while, on the other hand, the downward exhaust pipe controls the overall outlet cross-section enlarged for the cylinder. The lower exhaust can be made changeable by an adjustment device and so can be adapted to the variable amounts of steam. The one through the double exhaust given cross-sectional enlargement allows, especially when the lower exhaust cross-section adjustable, is a pressure relief down to atmospheric with each cylinder emptying Line.

But there is also a very significant effect for in other respects the cylinder.

In a locomotive, the cylinder is known to form the deepest part of the entire power plant, by removing the main steam line from the

overhead boiler down to the cylinder and the exhaust pipe from the cylinder is guided back up.

When starting up, when foaming over the boiler, when spinning the machine, etc. large amounts of water can get into the cylinder. The common drainage taps are on the cylinder ends, they allow high tension admissions vapor to flow out, and they can already for this reason only a very small cross-section obtain. These small cross-sections are not sufficient in places to discharge the Not to mention the fact that the facility will fail completely when it is closed is. This explains the frequent breakages of engine parts. In the cylinders of the Locomotives also get a lot of foreign bodies, such as lumps of coal, ash, soot and the like.

from the smoke chamber, and mud, sand, scale and the like from the boiler. The well-known, This is extremely strong friction between the cylinders, pistons and piston rings Episode.

Here the smaller exhaust steam flow escaping downwards causes the drainage and cleaning of the cylinder. Water and other foreign bodies that have got into the cylinder are carried away by the steam that is exhausted downwards, so that the arrangement of special drainage taps is unnecessary and the machine personnel is thus less stressed. The loss of the live steam escaping through the usual condensate cocks and the strong friction of the cylinder, piston and rings are avoided. Since the lower exhaust is kept open all the time, water and the aforementioned impurities are automatically removed with each stroke, so that one is independent of the machinist's attention in this regard .

The embodiment shown in the drawing shows in Fig. 1 a vertical Cross-section and, in FIG. 2, a vertical longitudinal section of a direct current locomotive cylinder.

The cylinder 1 shown is with the inlet valves 3 mounted in the covers 2 and in the middle with the steam outlet openings 4 made in the cylinder wall and 5 which are controlled by the working piston 6.

The steam outlet openings 4 are in the upper part of the central cylinder wall and are covered by a hood 7 placed on the cylinder, to which the main exhaust pipe 8 is connected. The outlet openings 5 provided in the lower part of the cylinder wall open into a common one Exhaust space 9, which is provided with an outlet connection 10, the cross section of which Can be made adjustable by a cock 0. the like.

In the case of the described locomotive cylinder, a part of that ejected by the piston 6 takes up Exhaust steam makes its way through the openings 4 and the pipe S after upper exhaust, while the other smaller part of the exhaust vapor through the openings 5 passes into the exhaust chamber 9 and here the water in the cylinder 1, for example and takes away any impurities.

Claims (1)

Patent claim: Locomotive cylinders with steam outlet openings in the cylinder wall controlled by the working piston, characterized in that the exhaust is divided in such a way that the larger Part of the steam enters the exhaust pipe in a known manner, while a second part led out through an opening arranged below will. 1 sheet of drawings.