Compressor Intake Pipe Lubricant Separator and Supply

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current compressor systems face challenges in maintaining lubricant balance between multiple compressors, especially when they include variable capacity or frequency compressors, leading to inefficiencies and potential damage due to lubricant imbalance.

Innovation Solution

An intake pipe system with a lubricant separator and supply pipes that separate lubricant from the compressed fluid and selectively distribute it to compressors with insufficient lubricant, using valves and sensors to manage lubricant distribution based on operational conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple compressors are connected in parallel to reduce system cost and improve operating efficiency, then system cost and operating efficiency are improved, but lubricant balance between compressors deteriorates

Engineering Contradiction:
Improveoperating efficiencyVSAvoidlubricant balance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts the lubricant from the mixed fluid stream in the common intake pipe using a lubricant separator. This separator removes lubricant that has mixed with the refrigerant or air during compression, preventing lubricant imbalance between parallel compressors by capturing and redirecting the extracted lubricant to compressors that need it.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a lubricant separator and supply system as an intermediary component between the common intake pipe and individual compressors. This intermediary system captures lubricant from the mixed stream and selectively distributes it to compressors with insufficient lubricant, mediating the lubricant balance issue in parallel compressor systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If variable capacity or variable frequency compressors are used to improve system flexibility, then system adaptability is improved, but lubricant balance control becomes more difficult

Engineering Contradiction:
Improvesystem flexibilityVSAvoidlubricant balance control
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs sensors to detect lubricant levels or flow conditions in the common intake pipe and uses this feedback information to control the lubricant supply to individual compressors. This feedback mechanism enables dynamic adjustment of lubricant distribution to match the varying capacity and frequency demands of variable compressors.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent creates a dynamic lubricant supply system where the lubricant flow to each compressor can be adjusted in real-time based on operational conditions. The system transitions from static, fixed lubricant distribution to dynamic, controllable distribution that adapts to variable compressor capacity and frequency requirements.

Inventive Principle:
Principle #15Dynamics

3Reliability

If a lubricant separator and supply system is added to solve lubricant imbalance, then lubricant balance is improved, but device complexity increases

Engineering Contradiction:
Improvelubricant balanceVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs the lubricant separator and supply system to serve multiple functions: separating lubricant from the mixed fluid stream, storing captured lubricant, and selectively distributing it to individual compressors. This multi-functionality reduces the need for separate systems for each function, thereby limiting the increase in overall device complexity while improving lubricant balance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 effectively alleviates or eliminates lubricant imbalance between compressors, ensuring proper lubrication and preventing damage from excessive lubricant suction, while reducing system costs and complexity.

Implementation Method 1

a lubricant separator, which is configured to separate lubricant from the fluid to be compressed and flowing through the intake pipe

Methodology Applied
Scientific EffectCentrifugal separation: Centrifugal Separation

Data Source

PatentUS11713760B2Intake pipe used for compressor system and compressor system
Publication Date: 2023.08.01 COPELAND CLIMATE TECN (SUZHOU) CO LTD
  • US11713760B2 patent drawing
  • US11713760B2 patent drawing
  • US11713760B2 patent drawing

AI summary

A compressor system (10) and an intake pipe (300) used for the compressor system (10), wherein the intake pipe (300) comprises: a lubricant separator (310), which is configured to separate a lubricant which is in a compression fluid flowing through the intake pipe (300); and a first lubricant supply pipe (340), which is configured to supply the separated lubricant to a first compressor (100) or a second compressor (200) in the compressor system (10).