DE119817C - SEALING DEVICE FOR MACHINES WITH ROTARY PISTONS - Google Patents

Description

IMPERIAL

PATENT OFFICE.

JVr 119817 CLASS 14

The purpose of the invention is to provide a to create such a permanent uniform seal that on the one hand prevents the propellant is to flow through there, and that, on the other hand, the labor of the Machine-reducing braking effect is avoided.

You have the same purpose through it sought to achieve that between the cylinder cover and the end faces of the pistons inserted loose plates, which pressed against the end faces of the pistons by means of strong springs became; but even with this arrangement a comparatively large one arose Loss of power through braking the pistons, as the springs have to be chosen so strong, that they could withstand the highest pressure occurring in the cylinder, so that at normal or lower pressure in the cylinder, the overpressure of the springs has a strong braking effect had to work.

In the present subject matter of the invention are also between the cylinder lids and the end faces of the pistons are loosely turned on by very weak springs be kept in slight contact with the pistons, while the tight fitting of the loose lid is automatic due to the propellant, and that is always effected in accordance with the respective pressure present in the cylinder.

The embodiment of the subject matter of the invention shown in the accompanying drawings is specially designed for the rotating motor according to patent 107716, in which the uniform tight fit of the lid is much more difficult to achieve because there is high pressure on the inlet side and low pressure on the exhaust side. If now In this engine, the high-tension propellant evenly on the full surfaces of the would press loose cover, then the pistons on the low pressure side would have to as a result of the strong overpressure prevailing between the loose lids and the outer cylinder lids also be braked. To prevent this, there is a space between a loose cover and an outer cylinder cover divided into two rooms by partitions under spring pressure. In the one on the inlet side the propellant works with full pressure, in the other on the exhaust side in the expanded state. By enlarging or reducing of inlet and outlet openings connected to these rooms the pressure, which is indicated by pressure gauges, can be regulated.

On the drawings \

Fig. Ι the outer view of a cover with partial view of the inner movable one Lid,)

Fig. 2 shows the inside view of the outer cover from which the inner cover has been lifted.

Fig. 3 shows both covers half in side view and half in section.

Claims (2)

FIG. 4 shows a section along line AB of FIG. . Fig. 5 shows in partial section one of the tap-like screws adjustable from the outside, through which the pressure of the propellant located between the inner and outer cover is regulated. 6 and η illustrate the screw of FIG. 5 in a section along line FG in different positions. Fig. 8 shows the inner lid from the side facing the outer lid. Fig. "9 shows the inner lid of the with the face of a piston coming into contact. FIG. 10 shows the inner cover in section along line CDE in FIG. 9. The inner cover α is completely flat on the side coming into contact with an end face of a piston, while on the opposite side it has three small protruding hubs provided with lateral openings (FIG. 10). At bb ¹ go through the piston shafts, which are stored in bearing shells c .. As can be seen from Fig. 3, weak springs d are housed in depressions of the outer cover, which are intended to keep the inner cover with the piston in light contact. The connection between the working space and the spaces between the inner and outer cylinder lids is established by screws ee ^l and f introduced from the outside into the inner lids α , which have a central bore and a laterally branching bore from the inner end, as shown in Fig 4 and 5 can be seen. In certain positions of the screws, these bores are connected to the lateral openings of the hubs provided on one side of the inner cover α , which so to speak form the cock housing for the screws ee ¹ and f , which act as cock cones. As can be seen from FIGS. 2, 3 and 4, incisions are provided in the outer cover, in which narrow slides ghh ^{1 are} accommodated, behind which there are leaf springs m (FIG. 3). These slides butt against the inner cover α and thus form the already mentioned partitions dividing the space between the two covers. Since the plate a, as can be seen at ii ¹ (Fig. 3), closes sufficiently tightly on the cylinder wall, the connection of the two spaces separated by the partitions ghh ¹ with the cylinder space is only established by the tap-like screws ee ^l f . Since the cross-section of the rotating vane pistons extends from the inner pressure surface of the inner cover α , the surface pressure between the outer cover, which is firmly screwed to the cylinder, and the inner cover α towards the piston is naturally significantly greater. This excess pressure now causes the inner cover to fit tightly against the end faces of the pistons. If steam or the like is let into the machine, the screw / gives it the way to flow comfortably between the inner and outer cover and to press the inner cover on the inflow side against the piston with full force. Since only on the exhaust side low pressure prevails, so PUFA less pressed correspondingly fixed on this side of the inner lid, when the pistons are not to be braked. this is achieved in the finished from the GHH by the partitions ¹ first space DAF in the second escaping vapor due the suspension of the partitions can only slowly flow under them, whereupon it has to expand into the second space. By appropriate adjustment ^of: two tap screws e and e ^1, the blowing agent located in the second space can be retained more or less, so precise control DAF the pressure on the exhaust side is possible, as well as the inflow at the entrance side by adjusting the tap screw / on the most precise can be regulated. To display the respective pressure, pressure gauges can be used, for their attachment at k and k ^l nozzles are provided on the outer cylinder covers. Patent claims: ι. Device for pressing sealing plates against the end faces of the working pistons by the pressure of the power medium in machines with rotating pistons, characterized in that between the outer lid screwed to the cylinder and the piston loosely inner lid (a) are inserted, the one between the inner and the outer The space formed by the cover is divided by resilient partitions (ghh ¹ ) and communicates with the inner cylinder space through controllable openings, through which openings the medium acting on the piston in the cylinder reaches between the two covers and there in the spaces formed by the partitions according to the respective size of the openings and, corresponding to the pressure fluctuations in the cylinder, with a great deal of pressure, praises the inner decoction against the Siir-nflScEen-KoiBen, that an intimate Uniform seal at all points on the piston face without simultaneous Braking is achieved. 2. Execution of the under i. marked sealing device, characterized in, that tap-like screws fee ¹ are arranged /), the holes produce Communication of Cylinderraumes with the space formed between the inner and outward lids spaces, for the purpose aufsen acting on the inner lid, pressure indicated by the pressure gauge to be able to regulate by turning the screws. For this purpose ι sheet of drawings.