SU907295A1 - Piston compressor - Google Patents

Description

The invention relates to the field of compressor engineering and concerns piston compressors. A piston compressor is known, comprising a cylinder and a cylinder installed with a gap and with the formation of compression chambers of the first and second stages of a differential piston provided with annular grooves with piston rings installed in them, the compression chambers of the first and second stages; communicated with each other by means of a gap and annular grooves l1 However, the dangai reciprocating compressor has insufficient reliability due to the small flow area of the channel connecting the compressor steps. The purpose of the invention is to increase the reliability of a piston compressor. This goal is achieved by the fact that the piston on the side of the compression chamber of the first stage has longitudinal grooves, and in the zone a ring; grooves radial grooves. 1 schematically shows the proposed piston compressor, a longitudinal section; on .2 - section aa in figure 1; on fig.Z - view B on fig.i. The piston compressor contains a cylinder 1 and mounted in cylinder 1. With a gap 2 and with the formation of cam 3 and 4 compressing the first and second stages, respectively, a differential piston 5 equipped with annular grooves 6 with piston rings 7 installed in them, and chambers 3 and 4 compressing the first and second stages communicate with each other with azor 2 and annular grooves 6. The piston 5 from the chamber 3 side of the first stage has longitudinal grooves 8, and in the area of the annular grooves 6 - radial grooves 9. The piston compressor works as follows in a way.

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When the diffractor porigy 5 moves upward in the compression chamber 3 (stage P1), the working gas is compressed. Compressed gas from perp r-rvneffn through longitudinal grooves 8 (over 2-sec between cylinder) and piston 5 1 further along radiator channel 9 enters compression chamber 4 of the second stage, where at this moment of movement of piston 5 a vacuum is created. When the differential piston 5 moves back down, the working gas, which is in the second stage compression chamber 4, undergoes additional compression and is pumped to the consumer. At this moment in the first stage compression chamber 3 a suction process takes place and a new portion of the working gas enters it. With further stroke of the piston 5, the cycle is repeated.

Thus, the execution in the differential piston from the side of the compression chamber of the first stage of longitudinal grooves and radial grooves in the area of annular grooves allows for guaranteed passage of the working gas from the compression chamber of the first stage

k-i

into the compression chamber of the second stage and thereby increase the compressor’s consistency.

Claims (1)

Invention Formula A piston compressor comprising a cylinder and a differential piston installed in a cylinder with a gap and with the formation of compression chambers of the first and second stages, provided with annular grooves with piston rings installed in them, the compression chambers of the first and second stages communicating with each other using a gap and annular grooves, characterized in that, in order to increase reliability, the piston on the side of the compression chamber of the first stage has longitudinal grooves, and in the ash of the ring grooves - radial grooves. Sources of information taken into account in the examination I. Patent of France No. 760346, cl. 27c, 14, pub. 1934. 7