Single-Channel Cooling Lubrication via Coolant Phase Change
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Solution Overview
Problem
Existing cooling lubrication methods are inflexible and often require multiple channels, making them unsuitable for small tools and inefficient in terms of coolant usage, particularly in minimum quantity lubrication processes where precise and even lubrication is needed.
Innovation Solution
A method that generates a liquid mixture of coolant and lubricant, where the coolant is pressurized to a high state, mixed with oil, and then reduced to form fine droplets for even distribution, allowing for single-channel lubrication and efficient use in machining processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cooling lubrication methods are used with multiple channels, then lubrication coverage is improved, but device complexity and tool design difficulty increase
Solution Approach 1:
The patent combines coolant and lubricant into a single liquid mixture delivered through one channel, merging two separate delivery systems into one unified system. This reduces tool complexity while maintaining effective lubrication coverage through the aerosol generation mechanism.
Solution Approach 2:
The patent changes the physical state and delivery parameters by creating an aerosol mixture from the liquid coolant-lubricant mixture. This phase change and delivery method transformation allows single-channel systems to achieve multi-channel lubrication coverage效果.
2Temperature
If larger quantities of aerosol are used for tool cooling, then cooling effect is improved, but lubrication uniformity deteriorates
Solution Approach 1:
The patent performs preliminary mixing of coolant and lubricant in liquid state before aerosol generation, ensuring homogeneous distribution. This pre-mixing action prevents uneven lubrication that would occur if components were mixed after aerosol formation.
Solution Approach 2:
The patent utilizes phase transition from liquid to aerosol state to achieve both cooling and uniform lubrication. The controlled phase change ensures proper distribution of lubricant droplets while maintaining cooling effectiveness.
3Loss of substance
If minimum quantity lubrication is implemented, then environmental friendliness and cost-effectiveness are improved, but lubrication effectiveness becomes challenging
Solution Approach 1:
The patent uses phase transition to aerosol state to maximize the effectiveness of minimal lubricant quantities. The aerosol form ensures thorough distribution and penetration, making minimum quantity lubrication effective despite reduced material usage.
Solution Approach 2:
The patent changes delivery parameters by using aerosol generation to enhance lubrication effectiveness with minimal quantities. This parameter change allows efficient use of small amounts of lubricant while maintaining reliable lubrication performance.
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 method enables flexible use across a wide range of tools, reduces lubricant usage, ensures even lubrication, and is environmentally friendly and cost-effective, particularly suitable for minimum quantity lubrication, improving machining results.
Implementation Method 1
reducing the pressures with respect to this liquid mixture, so that the coolant becomes gaseous and the oil is distributed in the form of droplets by the transition of the coolant into the gaseous state
Data Source
Figure 1
AI summary
A universal method for providing a cooling lubricant is proposed, comprising the generation of a liquid mixture, which includes the following steps: supplying a coolant (1) that is liquid at room temperature at a first pressure (P1), supplying an oil (7) as a lubricant to the coolant (1), which is supplied at a second pressure (P2) higher than the first pressure (P1), in order to be supplied to the coolant (1) at the first pressure (P1), and forming a liquid mixture of coolant (1) and oil (7), as well as reducing the pressures (P1, P2) so that the coolant (1) becomes gaseous and the oil (7) is dispersed droplet-like by the transition of the coolant (1) into the gaseous state.