SU737726A1 - Refrigerating compressor - Google Patents

Description

(54) REFRIGERANT COMPRESSOR

one

The invention relates to the field of compressor engineering.

Compressors are known that contain a cylinder, channels connected to the crankcase at the end of the injection and suction cycles, and a piston in the cylinder, which is articulated with a connecting rod head 1.

In known compressors, the channels are made in the cylinder, which increases the dead volume and reduces the efficiency.

The purpose of the invention is to increase efficiency.

This goal is achieved by the fact that the head of the connecting rod is equipped with a spool interacting with the piston head, and the channels are made in the latter and the spool.

FIG. 1 shows a refrigeration compressor, general view; in fig. 2 - one step, longitudinal section; in fig. 3 - section 5 cut A-A in FIG. 2

The compressor contains a cylinder 1, communicated by channels 2 and 3 with the crankcase 4 at the end of the injection and suction cycles, and a piston 5 placed in the cylinder 1, coupled to the head 6 of the connecting rod 7, which is equipped with a spool 8, which interacts with the piston head 5, and 2 3 performed in the last and spool 8.

The spool 8 is pressed against the bottom of the piston 5 by a spring 9.

During compressor operation, crankcase 4 is under refrigerant overpressure. Channels 2 and 3 in the bottom of the piston 5 and spool 8 coincide at the end of the discharge cycles when refrigerant is bypassed from the dead volume of cylinder 1 to crankcase 4, and at the end of suction when refrigerant is bypassed from crankcase 4 to cylinder 1, i.e. A second stage of filling the cylinder with a higher pressure refrigerant is carried out.

The implementation of channels 2 and 3 in the bottom of the crankcase 4 and spool 8 reduces dead volume and increases efficiency.

Claims (1)

Invention Formula A refrigeration compressor containing at least one cylinder, communicated by channels with the crankcase at the end of the injection and suction cycles, and a piston placed in the cylinder articulated with a connecting rod head, characterized in that efficiency The laaryna head is equipped with evils (1 ton of 1, interacting with the piston days, and the channels are made for the post and the valve. 737726 Sources of information taken into account during the examination 1. USSR Author's Certificate No. 101019, cells: Р04 В 39/10, 1954.