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Integrated screw compressor motor

Inactive Publication Date: 2021-09-23
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a screw compressor that includes a housing, helical screws, stators, and conductive elements. The screw compressor operates by applying current to the conductive elements, which generates flux fields that drive the screws to rotate and compress the fluid. The technical effects of the patent include improved efficiency, reduced noise, and improved control over the compressor's operation. The screw compressor can be used in a fluid system to compress the fluid and direct it towards the system's output.

Problems solved by technology

This additional housing material increases costs and leads to decreased efficiencies due to windage losses, for example.

Method used

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  • Integrated screw compressor motor
  • Integrated screw compressor motor
  • Integrated screw compressor motor

Examples

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Embodiment Construction

[0036]As will be described below, an oil-free screw compressor is provided within a compressor housing with a motor stator and windings that are integrated within the housing. The screw compressor thus has a compact size and operates at an increased efficiency owing to reduced windage losses.

[0037]With reference to FIG. 1, a fluid system 10 is provided. The fluid system 10 includes a screw compressor housing 11, an inlet 12 and an outlet 13. The screw compressor housing 11 houses a screw compressor 20 with a motor stator and windings (all to be described in detail below) that are integrated within the compressor housing 11. The screw compressor housing 11 has a first opening at a first end thereof whereby the compressor housing 11 is fluidly coupled with the inlet 12 to be receptive of fluid from the inlet 12 and a second opening at a second end thereof whereby the compressor housing 11 is fluidly coupled with the outlet 13 such that the compressor housing 11 can direct fluid into t...

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PUM

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Abstract

A screw compressor is provided and includes a housing (11), helical screws (21, 24) disposed within the housing (11) for rotation about respective rotational axes (RA1, RA2) in a mutually engaged relationship, at least one stator (30, 40) disposed within the housing (11) about a corresponding one of the helical screws (21, 24) and a conductive element (50, 60). The conductive element (50, 60) is wound about the at least one stator (30, 40) such that current applied to the conductive element (50, 60) generates a flux field by which the corresponding one of the helical screws (21, 24) is driven to rotate about the corresponding rotational axis (RA1, RA2).

Description

BACKGROUND OF THE DISCLOSURE[0001]The subject matter disclosed herein relates to compressors and, more particularly, to an integrated screw compressor motor.[0002]Rotary-screw compressors (or screw compressors, for short) typically employ rotary-type positive-displacement mechanisms and are used where large volumes of high-pressure fluid are needed for large industrial applications or to operate high-power tools. Screw compressors usually include two meshing helical screws, known as rotors, to compress a fluid. In a dry-running or oil free screw compressor, timing gears ensure that male and female rotors maintain precise alignment. In an oil-flooded screw compressor, lubricating oil bridges the space between the rotors, both providing a hydraulic seal and transferring mechanical energy between the driving and driven rotor. In any case, fluid enters screw compressors at their suction sides and moves through the threads as the screws rotate. The meshing rotors force the fluid through ...

Claims

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Application Information

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IPC IPC(8): F04C2/16
CPCF04C2/16F04C2240/60F04C2240/30F04C2240/10F04C15/008F04C2240/20F04C2240/52F04C18/16F04C29/0085
Inventor SISHTLA, VISHNU M.TANGUDU, JAGADEESH
Owner CARRIER CORP