Compressor Suction Passageway Movable Intermediate Portion
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Solution Overview
Problem
In compressors, the suction gas absorbs heat from the motor, which can reduce the heating and cooling efficiency of the system, as the fluid temperature increases during the compression process.
Innovation Solution
A compressor design with a movable intermediate portion in the suction passageway that can isolate the suction gas from the motor chamber, allowing some gas to flow directly to the compression mechanism while another portion flows into the chamber to cool the motor, thereby managing the fluid flow and temperature effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction gas flows through the chamber containing the motor, then the motor is cooled, but the fluid temperature increases which hinders heating and cooling capacity
Solution Approach 1:
The suction passageway is divided into multiple portions (first, second, and intermediate portions) that can be selectively engaged or disengaged. This segmentation allows the system to choose between different flow paths: one that directs gas through the motor chamber for cooling, and another that provides direct suction bypassing the chamber, thus resolving the contradiction between motor cooling and maintaining low fluid temperature.
Solution Approach 2:
The intermediate portion of the suction passageway is made movable between engaged and disengaged positions, allowing dynamic control of the gas flow path. This dynamic configuration enables the system to adapt to different operating conditions, selecting whether to prioritize motor cooling or maintain low suction gas temperature based on system needs.
2Use of energy by moving object
If the suction gas absorbs heat from the motor, then the motor efficiency improves, but the heating and cooling capacity of the system decreases
Solution Approach 1:
The suction passageway is divided into multiple portions (first, second, and intermediate portions) that can be selectively engaged or disengaged. This segmentation allows the system to choose between different flow paths: one that directs gas through the motor chamber for cooling, and another that provides direct suction bypassing the chamber, thus resolving the contradiction between motor cooling and maintaining low fluid temperature.
Solution Approach 2:
The intermediate portion of the suction passageway is made movable between engaged and disengaged positions, allowing dynamic control of the gas flow path. This dynamic configuration enables the system to adapt to different operating conditions, selecting whether to prioritize motor cooling or maintain low suction gas temperature based on system needs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the efficiency and longevity of the motor by minimizing heat absorption by the suction gas before compression, maintaining optimal system performance.
Implementation Method 1
The low-pressure fluid drawn into the suction chamber may absorb heat from the motor before being drawn into the compression mechanism. Cooling the motor in this manner can improve the efficiency and longevity of the motor, but also elevates a temperature of the fluid
Data Source
AI summary
A compressor may include a shell, a compression mechanism, and a suction passageway. The shell may include an inlet port. The compression mechanism may be disposed within the shell and may include a suction inlet. The suction passageway may include a first portion, a second portion, and an intermediate portion. The first portion may be fluidly coupled to the inlet port. The second portion may be fluidly coupled to the suction inlet of the compression mechanism. The intermediate portion may be disposed between the first and second portions and may be movable between a first position in which the intermediate portion engages the first and second portions and a second position in which the intermediate portion is disengaged from at least one of the first and second portions.