Scroll Compressor Discharge Valve for Higher Refrigerant Flow
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Solution Overview
Problem
The existing scroll compressors face limitations in improving performance and efficiency due to a restricted discharge amount of refrigerant from the compression chamber.
Innovation Solution
Incorporating a discharge valve with a discharge reed plate and a gasket retainer, along with an injection valve assembly that allows middle-pressure refrigerant to be introduced into the compression chamber, increasing the discharge amount by enabling the compression and discharge of both suction-pressure and middle-pressure refrigerant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the discharge valve with discharge reed plate and gasket retainer is added to control discharge openings, then the refrigerant discharge amount is increased and compressor performance is improved, but the device complexity is increased
Solution Approach 1:
The discharge reed plate functions as a flexible thin film component that automatically opens and closes discharge openings based on pressure differential, eliminating the need for complex actuated valve mechanisms. The reed plate's flexibility allows it to respond dynamically to compression chamber pressure, enabling precise control of refrigerant discharge timing and amount without adding mechanical complexity.
Solution Approach 2:
The discharge valve system operates autonomously using the pressure differential across the reed plate to control opening and closing. The gasket retainer provides automatic sealing engagement, and the entire discharge control mechanism serves itself without external actuation, reducing device complexity while maintaining effective discharge control.
2Productivity
If the injection valve assembly is added to introduce middle-pressure refrigerant into the compression chamber, then the refrigerant discharge amount is increased and compressor efficiency is improved, but the device complexity is increased
Solution Approach 1:
The injection valve assembly acts as an intermediary component that introduces middle-pressure refrigerant from the condenser into the compression chamber. This intermediate refrigerant source enables the compressor to discharge both suction-pressure and middle-pressure refrigerant, increasing overall discharge amount and efficiency without requiring fundamental changes to the compression mechanism.
3Productivity
If multiple discharge openings are provided in the fixed scroll, then the refrigerant discharge amount is increased, but the manufacturing precision requirements are increased
Solution Approach 1:
The discharge valve system segments the control of multiple discharge openings by using a single reed plate that simultaneously governs all openings. This segmentation approach allows multiple discharge paths to be controlled by one flexible component rather than requiring individual valves for each opening, reducing manufacturing precision requirements while maintaining increased discharge capability.
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 configuration enhances the performance and efficiency of the compressor by increasing the refrigerant discharge amount, allowing for improved compression and discharge processes.
Implementation Method 1
a discharge valve disposed on one surface of the fixed scroll and configured to open or close one or more discharge openings of the fixed scroll through which a refrigerant compressed in the compression chamber is discharged
Implementation Method 2
an orbiting scroll configured to orbit in conjunction with the rotary shaft; a fixed scroll configured to define a compression chamber together with the orbiting scroll
Data Source
AI summary
A scroll compressor including a housing, a motor provided in the housing, a rotary shaft configured to be rotated by the motor, an orbiting scroll configured to orbit in conjunction with the rotary shaft, a fixed scroll configured to define a compression chamber together with the orbiting scroll, and a discharge valve disposed on one surface of the fixed scroll and configured to open or close one or more discharge openings of the fixed scroll through which a refrigerant compressed in the compression chamber is discharged, in which the discharge valve includes: a discharge reed plate disposed on one surface of the fixed scroll, and a gasket retainer disposed between one surface of the fixed scroll and the housing and configured to surround the discharge reed plate.