Slide valve for compressor and screw compressor with slide valve

Patent metadata

Field	Value
Publication number	US-11313369-B2
Application number	US-201816496028-A
Country	US
Kind code	B2
Filing date	Mar 19, 2018
Priority date	Mar 20, 2017
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

Some embodiments of the present disclosure provide a slide valve for a compressor and a screw compressor with the slide valve. The slide valve for the compressor includes a slide valve main body (10), the slide valve main body (10) is provided with a gas replenishing chamber (11) therein, a surface, facing to a compression chamber of the compressor, of the slide valve main body (10) is provided with a gas replenishing outlet hole (12), and the gas replenishing outlet hole (12) is in communication with the gas replenishing chamber (11).

First claim

What is claimed is:

1. A slide valve for a compressor, comprising a slide valve main body, a gas replenishing chamber and a gas replenishing outlet hole, wherein the gas replenishing chamber is disposed in the slide valve main body, the gas replenishing outlet hole is provided on a surface, facing to a compression chamber of the compressor, of the slide valve main body, and the gas replenishing outlet hole is in communication with the gas replenishing chamber; wherein the slide valve main body comprises a top central line, two sides of the top central line are provided with at least one group of gas replenishing outlet hole group respectively, and the at least one group of gas replenishing outlet hole group comprises at least one gas replenishing outlet hole;
wherein the slide valve comprises a gas replenishing inlet hole provided on a side of the slide valve main body, wherein the gas replenishing inlet hole is in communication with the gas replenishing chamber;
wherein the gas replenishing chamber comprises a round cross section, and a diameter of the gas replenishing chamber is 45 mm-55 mm;
wherein the gas replenishing outlet hole comprises a round cross section, and a diameter of the gas replenishing outlet hole is 4 mm-6 mm.

2. The slide valve for the compressor as claimed in claim 1 , wherein along an extension direction of the top central line, an end of the slide valve main body is provided with an opening which is in communication with the gas replenishing chamber, the slide valve for the compressor further comprises a sealing and pressing plate, and the sealing and pressing plate is fixedly provided on the slide valve main body, and seals the opening.

3. A screw compressor, comprising a compressor body, a screw disposed in a rotor chamber of the compressor body and a slide valve disposed inside the compressor body, the slide valve is the slide valve for the compressor as claimed in claim 1 ; and a side, provided with a gas replenishing outlet hole, of the slide valve faces to the rotor chamber of the compressor body.

4. The screw compressor as claimed in claim 3 , wherein there are two screws meshed with each other, and a top central line of the slide valve corresponds to a connecting line of points of intersection of inner circles of the two screws.

5. The screw compressor as claimed in claim 3 , wherein the screw compressor further comprises a gas replenishing pipe, the gas replenishing pipe passes through the compressor body, and is coupled to the slide valve and in communication with the gas replenishing chamber of the slide valve.

6. The screw compressor as claimed in claim 3 , wherein along an extension direction of the top central line, an end of the slide valve main body is provided with an opening which is in communication with the gas replenishing chamber, the slide valve for the compressor further comprises a sealing and pressing plate, and the sealing and pressing plate is fixedly provided on the slide valve main body, and seals the opening.

Assignees

• Gree Electric Appliances Inc Zhuhai

Inventors

• Liu Hua
• Zhang Tianyi
• Zhang Helong
• Li Rihua
• Xu Yungong
• Zhang Baoge

Classifications

• F04C29/06

  Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N) · CPC title

• F04C28/12 Primary

  using sliding valves · CPC title

• F04C2270/145

  Controlled or regulated · CPC title

• F04C2270/125

  Controlled or regulated · CPC title

• F04C18/16 Primary

  with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F04C18/48)} · CPC title