Slide valve for a twin-screw compressor
AssigneesTyco Fire & Security GmbH, Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd.
InventorsShengmei Yang, Shahebaz Malik
Life of this patent
Estimating the term…
Abstract
The present application provides a slide valve, wherein the slide valve is configured to regulate a load of a twin-screw compressor. The slide valve comprises a slide valve body, wherein the slide valve body has a connecting end and a free end, the connecting end is configured to connect to a slide valve connecting rod of the twin-screw compressor, and the slide valve is driven to slide by the slide valve connecting rod. A cavity is formed in the free end of the slide valve body, and the slide valve has a passage configured to fluidly couple the cavity with an external fluid to reduce air flow pulsations on a suction side of the twin-screw compressor and thereby reduce overall air flow pulsations in the twin-screw compressor.
Claims18
A slide valve configured to regulate a load of a twin-screw compressor, comprising:
- a slide valve body of the slide valve, wherein the slide valve body comprises a connecting end and a free end, the connecting end is configured to connect to a slide valve connecting rod of the twin-screw compressor, the slide valve is configured to be driven by the slide valve connecting rod, the free end of the slide valve body is configured to at least partially define an air return passage of the twin-screw compressor, a cavity is formed in the free end and extends into the slide valve body, the free end of the slide valve body comprises an end face, the cavity extends into the slide valve body from the end face of the free end, and the slide valve comprises at least one passage configured to fluidly couple the cavity to the air return passage;
- and
- a cover coupled to the end face, wherein the cover comprises the at least one passage formed therein, and the at least one passage is configured to enable flow of an external fluid from the air return passage into the cavity.
A slide valve configured to regulate a load of a twin-screw compressor, comprising:
- a slide valve body of the slide valve, wherein the slide valve body comprises a connecting end and a free end, the connecting end is configured to connect to a slide valve connecting rod of the twin-screw compressor, the slide valve is configured to be driven by the slide valve connecting rod, a cavity is formed in an end face of the free end, and the cavity extends into the slide valve body;
- and
- a cover coupled to the end face of the free end, wherein the cover comprises at least one passage configured to fluidly couple the cavity to an external fluid to reduce air flow pulsations on a suction side of the twin-screw compressor.
A slide valve configured to regulate a load of a twin-screw compressor, comprising:
- a slide valve body comprising a connecting end and a free end, wherein the connecting end is configured to connect to a slide valve connecting rod of the twin-screw compressor, the slide valve is configured to be driven by the slide valve connecting rod, the free end is configured to at least partially define an air return passage of the twin-screw compressor, and a cavity is formed in the free end and extends into the slide valve body;
- and
- a cover coupled to an end face of the free end, wherein the cover comprises a plurality of passages extending through the cover, and the plurality of passages is configured to fluidly couple the cavity to the air return passage and configured to enable flow of an external fluid from the air return passage into the cavity to reduce air flow pulsations on a suction side of the twin-screw compressor.
Dependencies are inferred from the claim text.