Progressive Lubrication Pressure Monitoring for Blockage Detection
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Solution Overview
Problem
Lubrication systems with progressive distributors face challenges in detecting partial blockages, line breaks, and impending blockages due to the buffering capacity of the system, which delays detection of complete failures, and require multiple sensors for comprehensive monitoring.
Innovation Solution
A lubrication system with a progressive distributor that includes a pressure sensor positioned upstream of the metering pistons, coupled with a control unit to detect lubrication cycles and compare average pressure against normal operating pressure, allowing for accurate monitoring with minimal sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors are installed at each outlet of the progressive distributor to detect line breaks, flow, and pressure, then measurement precision and reliability are improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple detection functions (line break detection, flow monitoring, pressure sensing) into a single pressure sensor positioned upstream of the progressive distributor. This single sensor monitors the entire lubrication system by detecting pressure changes that indicate various malfunction types, thereby reducing the number of sensors from multiple per outlet to just one upstream sensor.
Solution Approach 2:
The upstream pressure sensor serves multiple detection purposes simultaneously: it detects line breaks through pressure loss, monitors flow conditions through pressure variations, identifies partial blockages through pressure increases, and tracks system health over time. This multi-functional approach replaces the need for specialized sensors for each detection task.
2Productivity
If the lubrication system uses buffering capacity to maintain operation, then productivity is maintained during minor disturbances, but detection of complete blockages is delayed
Solution Approach 1:
The pressure sensor is positioned upstream of the progressive distributor to detect pressure changes before they propagate through the system. This upstream positioning allows the system to identify malfunctions such as line breaks or blockages immediately when they occur at the distributor or downstream, rather than waiting for the buffering capacity to be depleted. The sensor captures pressure anomalies in real-time, enabling early warning while the system still has buffering capacity.
Solution Approach 2:
The control unit continuously receives pressure data from the sensor and compares it against expected pressure ranges. When pressure deviations indicate a malfunction, the system provides immediate feedback about the system state. This feedback mechanism allows the system to maintain productivity by detecting issues early while still having buffering capacity, and to respond appropriately to prevent complete failure.
3Measurement precision
If piston detectors monitor piston movement to detect disturbances, then complete blockages are detected, but partial blockages and line breaks in downstream parts cannot be detected
Solution Approach 1:
The upstream pressure sensor acts as an intermediary that indirectly monitors the entire lubrication system including downstream components. Instead of requiring direct monitoring at each piston and outlet, the pressure sensor captures system-wide pressure changes that result from downstream malfunctions such as line breaks, partial blockages, or piston failures. This intermediary approach provides comprehensive monitoring information without requiring multiple distributed sensors.
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
Enables precise detection of system malfunctions, including blockages and line ruptures, with reduced sensor requirements, and a self-learning database for improved accuracy and adaptability.
Implementation Method 1
The progressive distributor has at least one sensor (8), in particular a pressure sensor, which is designed to determine at least one lubricant pressure within the lubrication system (1)
Implementation Method 2
the control unit (10) is configured to detect lubrication cycles based on measured values and to determine an average pressure of a lubrication cycle
Implementation Method 3
The metering piston (2.3) is movable within the piston bore (2.2) and is designed to alternately open one or the other lubricant outlet bore (2.4, 2.5) to dispense the metered quantity of lubricant
Data Source
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AI summary
A lubricating system (1) is disclosed, having a progressive distributor (2) for dispensing lubricant to a consumer (6), wherein the progressive distributor (2) has at least one sensor (8), which is designed to determine at least one lubricant pressure within the lubricating system (1), wherein the lubricating system (1) also has a control device (10), which is designed to receive measured values from the sensor (8), wherein the control device (10) is designed to detect lubricating cycles on the basis of the measured values and to ascertain the average pressure of a lubricating cycle, to compare the ascertained average pressure with a normal pressure of the lubricating system (1) and to determine the state of the lubricating system (1) on the basis of the result of the comparison.