Unlock instant, AI-driven research and patent intelligence for your innovation.

Compressors with differential pressure unloading valves

An unloading valve and compressor technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of scroll component damage, failure of refrigerant to be discharged in advance, energy consumption, etc., to improve reliability and reduce inefficiency The effect of doing work and improving efficiency

Active Publication Date: 2020-12-29
DALIAN SANYO COMPRESSOR
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of existing scroll compressors is that the refrigerant is compressed in multiple consecutive compression chambers, and the refrigerant that has been finally compressed can only be discharged from the center of the scroll. If the pressure at the end of compression is high under some operating conditions Due to the required pressure, the refrigerant cannot be discharged in advance, which consumes more energy; at the same time, if there is liquid in the compression chamber, due to the incompressibility of the liquid, the compression of the liquid will cause damage to the scroll parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compressors with differential pressure unloading valves
  • Compressors with differential pressure unloading valves
  • Compressors with differential pressure unloading valves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1As shown, it is an embodiment in which the lower bottom surface 403 of the valve body 400 blocks the channel 107 . The teeth 101 of the fixed scroll part and the teeth 701 of the movable scroll part cooperate with each other to form a plurality of compression chambers, including the chamber B600, which communicates with the chamber C 102 through the channel 107. At this time, the pressure in the chamber C102 is greater than that in the passage 107 medium pressure, the lower bottom surface 403 of the valve body 400 is in close contact with the smooth bottom wall 106 , the lower bottom surface 403 blocks the channel 107 , and the fluid in the chamber B will not be discharged along the channel 107 .

Embodiment 2

[0044] Such as Figure 4 Shown is an embodiment in which the lower bottom surface 403 of the valve body 400 is away from the channel 107 . The teeth 101 of the fixed scroll part and the teeth 701 of the movable scroll part cooperate with each other to form a plurality of compression chambers, including the chamber B600, which communicates with the chamber C 102 through the passage 107. At this time, the pressure in the passage 107 is greater than that of the chamber C 102 medium pressure, the lower bottom surface 403 of the valve body 400 starts to leave the channel 107, because there is a spring 300 in the accommodation cavity D401 of the valve body 400, one end of the spring 300 is restricted by the stopper 200, and the other end of the spring 300 is in contact with the valve body 400, the valve The movement of the body 400 also needs to overcome the spring force of the spring 300, and when the steady state is reached, the valve body 400 is in the position shown in the figur...

Embodiment 3

[0046] Such as Figure 5 Shown is an embodiment in which the lower bottom surface 403 of the valve body 400 leaves the channel 107 and the lower bottom surface 403 moves beyond the bottom surface 105 . The teeth 101 of the fixed scroll part and the teeth 701 of the movable scroll part cooperate with each other to form a plurality of compression chambers, including the chamber B600. The chamber B600 communicates with the chamber C102 through the passage 107. At this time, the pressure in the passage 107 is greater than that of the chamber C102. Under medium pressure, the lower bottom surface 403 of the valve body 400 starts to leave the channel 107. Since a spring 300 is pressed in the accommodation chamber D401 of the valve body 400, one end of the spring 300 is restricted by the stopper 200, and the other end of the spring 300 is in contact with the valve body 400. The valve body The movement of 400 also needs to overcome the spring force of spring 300, and when the steady st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a compressor with a pressure difference unloading valve. The compressor comprises a fixed vortex component, a blocking piece, a spring, a valve body and a moving vortex component, wherein a cavity A is formed at the upper portion of the fixed vortex component, the cavity A is formed at the upper portion of the fixed vortex component, the fixed vortex component and the movingvortex component coordinate mutually to form a cavity B, a communicating passage is arranged from the cavity B to the cavity A, the passage is internally provided with the valve body, the spring andthe blocking piece, the valve body determines opening and closing of the passage, the spring determines displacement of the valve body, and the blocking piece limits one end of the spring not to move;and when a specified pressure difference exists, the valve body moves, the passage is opened, furthermore, the passage area increases as the pressure difference increases, and fluid inside the cavityB can enter the cavity A. By means of the technical scheme of the compressor with the pressure difference unloading valve, the high-pressure fluid inside the compressor cavity B can be made to enterthe cavity A, compression is finished in advance, the compression efficiency can be improved, damage will not be generated to the vortex components additionally, and the compressor efficiency and working reliability are improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular, to a compressor with a pressure differential unloading valve. Background technique [0002] Existing scroll compressors include fixed scroll parts with involute blades, movable scroll parts with involute blades matched with the fixed scroll parts, and fixed scroll parts and fixed scroll parts. The rotating parts cooperate with each other to form multiple compression chambers with variable volumes, and the motor drives the crankshaft to drive the movable scroll part to revolve along its orbit, thereby completing the suction, compression and discharge of gas. The disadvantage of existing scroll compressors is that the refrigerant is compressed in multiple consecutive compression chambers, and the refrigerant that has been finally compressed can only be discharged from the center of the scroll. If the pressure at the end of compression is high under some operating conditions Du...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F04C28/24
Inventor 刘忠赏蔡晓斌杨晓倩张晓丹高博
Owner DALIAN SANYO COMPRESSOR