SU36738A1 - Lubrication pump for steam engine cylinders - Google Patents

Description

The proposed lubricating pump for steam engine cylinders, equipped with a differential piston, under variable vapor pressure B cylinder, simultaneously delivers lubricant to the cylinder and to the spool of the steam distribution box by means of a working pump chamber located between the small and medium stages of the differential three-stage piston. This chamber is connected by the corresponding unions, channels and back pressure and suction valves with the valve, the machine cylinder and the oil space of the pump.

In the schematic drawing of FIG. 1 shows a vertical section through a lubrication pump; FIG. 2 is the same, in a plane perpendicular to the section in FIG. one; FIG. 3 is a longitudinal section of the pump according to AB in FIG. one; FIG. 4-side view with partial section of modified pump.

The lubrication pump consists of a cylindrical tank 1, in the lower part of which a differential three-stage piston 13 is placed; between the steps of this piston is located the working chamber 65. The lid 2 of the tank 1,

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TIGHTLY closable with the help of a lamb 27; it is equipped with a shut-off clan 26 for communication with the atmosphere; Under the cover 2, a grid 3 is placed to filter the lubricant when filling the tank. The working chamber 65 communicates with the valve of the steam distribution box of the machine through fitting 41 and with the oil space 71 by channels 66, 67, 68, 69, 70 through check valves 5, 19 and 62. To install the lubrication pump and connect it to the working space of the machine cylinder fitting 11. To drain the oil and water when washing tank 1, there is a stopper 40 (Fig. 3).

The lubrication pump starts working under the influence of pressure on the differential stepped piston 13 of steam coming from the cylinder of the machine, on the one hand, through fitting 11 and, on the other hand, from the spool through the connecting tube through fitting 41. Under the action of steam, the differential piston 13, being under varying pressure, it moves up and then down. When moving down, the lubricant comes from the oil space 71 through the suction ball valve 5

In the channels 69, 68, 67 and 66, and when the piston 13 returns upward, the lubricant enters the channels simultaneously into the machine, the machine and the valve of the steam distribution box, into the first one through the return pressure ball valve 19, channel 72 and fitting 11, and the second through a similar valve 62 and fitting 41. With the help of the regulating overflow valve 31 (Fig. 2), it is possible, as necessary, to change the number of fed cheese or completely stop feeding it. To achieve a smooth, non-impact movement of the differential piston 13 in the lubrication pump with the horizontal arrangement of the piston (Fig. 4), the author proposes a hydraulic buffer device to the piston 13 consisting of an additional step 4, on one and the other side of which the spaces 36 communicate with oil space 71, through channels 20, 56 and recess 15 in the piston rod 13 and channel 8 in the side wall of the cylinder of the piston 13. When the piston 13 moves to the right, the oil that entered the space 36 is replaced by step 4 back into the reservoir 1, remaining partially in the piston cylinder on the left side of the stage 4. The oil is forced out through the channel 20 until the channel 8 is blocked by the edge of the undercut 15, which is in the middle stage of the piston 13, after which the oil stops 36 forms a buffer for the piston 13. When the piston 13 moves back to the left, the oil located on the left side of stage 4 is displaced from the space 36

through channels 20 and 56 until channel 56 overlaps with the edge of sleeve 23 and thus stops further extraction of the oil necessary for the formation of a buffer.

The subject matter of the invention.

Claims (3)

1. Lubricating pump for steam engine cylinders, equipped with a differential piston under the action of variable vapor pressure in the cylinder, characterized in that, in order to simultaneously supply lubricant, both the cylinder and the lubricating valve spool are used in the pump cylinder between the small and medium stages of the differential three-stage piston 13 and connected at the time of fitting 41 and the check valve 62 to the valve, through the check valve 19, the channel 72 and a hollow fitting 11 with a cylinder of the machine and with the help of channels 66, 68, 69 and 70 and a non-return suction valve 5 with an oil space 71. 2. The use of an additional return channel 19 in the lubrication pump under item 1 in the discharge channel to the cylinder. 3. The form of the lubrication pump according to claim 1, characterized by using a hydraulic buffer device to the differential piston 13, consisting of an additional stage 4 on the piston 13, the spaces of which are on one and the other side of it connected to the oil space 71 through channels 20 , 56 and undercuts 15 in the piston rod 13 and channel 8 in the side wall of the cylinder of the piston 13 (Fig. 4). 1 TDCfb 2 JI-.