Hydraulic Machine Flushing Circuit Segmentation
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Solution Overview
Problem
Existing hydraulic machines face challenges in efficiently cooling the internal volume, as current scanning systems either fail to scan the entire volume or require additional pipes that complicate access and increase maintenance risks.
Innovation Solution
A hydraulic machine with an internal volume scanning circuit that includes a primary flow and a secondary flow, both calibrated to ensure comprehensive scanning without the need for additional fluid input and output orifices beyond the proximal portion, thereby maintaining a simplified structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional pipes are added to distribute sweeping fluid to different portions of the hydraulic machine, then the sweeping coverage of the internal volume is improved, but the device complexity and maintenance difficulty increase
Solution Approach 1:
The patent divides the internal volume into three distinct portions (proximal, middle, and distal) and creates separate sweeping circuits for each portion. Each circuit has its own inlet and outlet pipes, allowing independent sweeping of each segment. This segmentation enables comprehensive coverage of the entire internal volume while maintaining manageable complexity by treating each portion as a separate controllable unit.
Solution Approach 2:
The sweeping fluid serves multiple functions simultaneously: it cools the internal volume components, lubricates moving parts, and removes heat from all three portions of the hydraulic machine. The same fluid circuit system handles both cooling and lubrication needs across the entire device, reducing the need for separate dedicated systems for each function.
2Temperature
If additional pipes are added to distribute sweeping fluid, then the cooling effectiveness of the internal volume is improved, but the ease of operation and maintenance deteriorate
Solution Approach 1:
By segmenting the internal volume into three portions with separate sweeping circuits, the patent enables targeted cooling of specific areas that generate the most heat (such as the distal portion with bearings and the middle portion with the hydrocouple). This segmentation allows operators to control sweeping fluid flow to specific regions based on thermal conditions, improving cooling effectiveness while maintaining operational flexibility.
3Device complexity
If the internal volume is not adequately swept, then the structural simplicity is maintained, but the temperature control and component protection deteriorate
Solution Approach 1:
The patent applies local quality by providing enhanced sweeping coverage to specific portions of the internal volume based on their thermal characteristics. The distal portion with bearings and the middle portion with the hydrocouple receive dedicated sweeping circuits that target their specific cooling needs. This localized approach ensures that areas generating the most heat receive proportionally more cooling attention without requiring uniform complexity throughout the entire system.
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
The proposed solution effectively cools and lubricates all portions of the hydraulic machine, ensuring that the internal volume is adequately scanned, even in areas distant from the scanning fluid's entry and exit points, thus preventing overheating and premature wear.
Implementation Method 1
The working fluid circulating in the closed loop circuit and which passes through the various components of a hydraulic circuit such as pumps, motors, conduits and various regulating components tends to heat up, in particular due to friction between the various internal elements of the hydraulic machine 100 and pressure losses.
Implementation Method 2
a scavenging circuit configured so as to form a primary scavenging flow circulating from the inlet orifice successively in the proximal portion, in the middle portion and in the distal portion of the hydraulic machine, then in the middle portion and in the proximal portion to the outlet orifice
Implementation Method 3
ensuring that the internal volume is adequately scanned, even in areas distant from the scanning fluid's entry and exit points, thus preventing overheating and premature wear
Data Source
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AI summary
Disclosed is a hydraulic machine (100) comprising an improved flushing circuit for causing a primary flushing flow (F1) to circulate from an inlet (210) successively into a proximal portion (110), a mid portion (120) and a distal portion (130) of the hydraulic machine (100), then into the mid portion (120) and the proximal portion (110) as far as an outlet (220).