Oil Separator Valve Control for Compressor Oil Return Balance
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Solution Overview
Problem
Air conditioners face inefficiencies due to improper oil collection in the compressor, leading to either oil shortages or compression of refrigerant and oil together, which can cause compressor breakdowns or reduce efficiency.
Innovation Solution
An oil separator with a housing featuring multiple collection tubes and a control valve that adjusts the flow of oil into the compressor, ensuring the right amount of oil is delivered based on the compressor's needs, using first and second collection tubes to manage oil levels and prevent backflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relatively small amount of oil is collected from the oil separator to the compressor, then oil shortage within the compressor is avoided, but compressor breakdown occurs due to insufficient lubrication
Solution Approach 1:
The patent implements a dynamic oil collection system where the oil collection tube can be adjusted to different positions within the oil separator. This allows the system to adaptively control the amount of oil collected based on operating conditions, transforming a static fixed-position system into a dynamic adjustable one to resolve the contradiction between preventing oil shortage and avoiding compressor breakdown
Solution Approach 2:
The patent changes the positional parameter of the oil collection tube within the oil separator to control oil flow quantity. By adjusting the insertion depth or position of the collection tube, the system modulates the amount of oil returned to the compressor, thereby resolving the contradiction between sufficient lubrication and preventing oil accumulation
2Reliability
If a relatively large amount of oil is collected from the oil separator to the compressor, then compressor breakdown is prevented, but refrigerant and oil are compressed together deteriorating compressor efficiency
Solution Approach 1:
The adjustable oil collection tube enables dynamic control of oil return quantity, allowing the system to optimize the balance between reliability and efficiency. By making the collection position variable, the system can prevent both oil shortage and excessive oil compression, resolving the contradiction between compressor reliability and operating efficiency
Solution Approach 2:
The patent modifies the positional parameter of the oil collection tube to precisely control oil flow rate. By adjusting this parameter, the system achieves optimal oil return quantity that maintains compressor reliability while preventing refrigerant-oil mixture compression that would reduce efficiency
3Reliability
If oil is not separated properly from refrigerant, then compressor lubrication is maintained, but refrigerant and oil are compressed together reducing system performance
Solution Approach 1:
The patent segments the oil return path into multiple controllable sections using an adjustable collection tube within the oil separator. This segmentation allows selective oil extraction at different stages of the separation process, enabling proper oil-refrigerant separation while maintaining adequate lubrication and preventing efficiency loss from compressed oil-refrigerant mixtures
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 solution allows for precise control of oil levels in the compressor, enhancing its performance and efficiency by ensuring the correct amount of oil is supplied, preventing breakdowns and maintaining optimal operation.
Implementation Method 1
the refrigerant and the oil may be separated from each other in an oil separator
Data Source
AI summary
An oil separator and an air conditioner including an oil separator are provided. The oil separator may include a housing including a suction tube that guides a refrigerant, in which an oil may be mixed, into the housing and a discharge tube that discharges refrigerant separated from the refrigerant, in which the oil may be mixed, to the outside, a first collection tube that communicates with a lower portion of the housing to discharge the oil separated from the oil to a compressor, a second collection tube that communicates with a side surface of the housing to discharge the oil separated from the refrigerant to the compressor, and a control valve provided in communication with the first collection tube or the second collection tube to control a flow of the oil through the first collection tube or the second collection tube.