SU1668735A1 - Rotor compressor and its method of operation - Google Patents

Abstract

The invention makes it possible to increase the efficiency of a rotary compressor. The working body is filled from the suction channel (K) 2 with the working chamber 8 formed by two blades 6 and 7 unevenly rotating in the housing 1 of the body 1. The working body is compressed, displaced and transferred to K 2. The transfer is carried out at a constant body volume from K 3 injections to K 2 and at a constant angular frequency of rotation of the blades 6 and 7. The drive mechanism of the blades 6 and 7 includes an eccentrically mounted output shaft, on which the disk with radial grooves is fixed. Levers placed on concentric shafts. Fingers interact with levers and grooves. Each of the slots is curved and includes three adjacent portions: internal, intermediate and peripheral. 2 sec. f-ly, 3 ill.

Description

 w oa / Ш

R $ -V |: 2 + i + 2L-i cosrai-f2arocos-i) Angle - formed between the plane R4 - L +, L J, passing through the axes of the shafts and the disk,

where L is the distance between the concentric-5 axis and the longitudinal axis of the lever at the start

shaft and finger axles; increase the volume of the working chamber.

eleven

sixteen

Fig.Z

12

Claims (2)

Claim 1. The method of operation of a rotary compressor, including filling the working fluid from the suction channel of the working chamber formed by two blades that rotate unevenly in the housing, compressing the working fluid, displacing it and transferring it to the suction channel, characterized in that, in order to increase the efficiency, the transfer is carried out at a constant volume of the working fluid in the area from the discharge channel to the suction channel and at a constant angular frequency of rotation of the blades. 2. A rotary compressor comprising a housing with suction and discharge channels, concentric shafts with blades placed on them to form working chambers, a blade drive mechanism including an eccentrically mounted output shaft, mounted on the last disk with radial grooves, levers placed on the shafts, and fingers located with the possibility of interaction with levers and radial grooves of the disk, characterized in that, in order to increase efficiency, each of the grooves is made curved and includes three sections interconnected - internal, intermediate and peripheral, and the distance from the point farthest from the axis of rotation of the disk of the peripheral portion R4. the points of the inner portion Rι that are least distant from the axis of rotation, as well as the intersection points of the longitudinal axes of the peripheral and intermediate sections R3 and the intermediate and internal sections R2 to the axis of rotation of the disk are determined by the following relations: ’ Ri-L-I; R ₂ - V - | 2, Do “+? + 2L · I · cos Г a \ + 2 arccos -1)] R4 “L + l,. * · L <1 where L is the distance between the axis of the concentric 5 shafts and the axes of the fingers; I is the value of the eccentricity of the output shaft; "1 - the angle formed between the plane passing through the axis of the shafts and the disk, and the longitudinal axis of the lever at the time of the beginning of the increase in the volume of the working chamber.