Compressor Cylinder Overheat Detection With Temperature Switches
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Solution Overview
Problem
Compressor assemblies in commercial vehicles lack reliable and effective monitoring means to detect unfavorable operating conditions and faults early, leading to potential downtime and further damage.
Innovation Solution
A compressor assembly with a sensor network comprising temperature sensitive switches assigned to each cylinder, which interrupt the electric connection when a predefined temperature is reached, providing an overheat signal to detect faults in the cooling means and other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temperature monitoring is implemented using conventional sensors, then fault detection capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the temperature sensing function from complex continuous monitoring sensors and implements it through simple temperature-sensitive switches that only detect when threshold temperatures are exceeded. This extraction of the essential monitoring function reduces device complexity while maintaining fault detection capability.
Solution Approach 2:
The patent employs inexpensive temperature-sensitive switches instead of expensive continuous monitoring sensors. These simple switches are designed for reliable one-time or limited-use operation, providing adequate monitoring without the complexity and cost of sophisticated continuous measurement systems.
2Reliability
If continuous temperature monitoring is implemented, then early fault detection is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic temperature monitoring through temperature-sensitive switches that are activated only when specific temperature thresholds are reached. This periodic, threshold-based monitoring approach reduces continuous energy consumption while still providing early fault detection capability.
Solution Approach 2:
The temperature-sensitive switches are designed to automatically activate and interrupt the electrical connection without requiring external power or control systems. The switches self-regulate based on temperature conditions, eliminating the need for energy-consuming continuous monitoring electronics.
3Measurement precision
If sophisticated monitoring systems are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent extracts the essential temperature threshold detection function from complex measurement systems. By using temperature-sensitive switches that simply open or close at predefined temperatures, the system achieves adequate measurement precision for fault detection while dramatically improving ease of operation through simplified system architecture.
Solution Approach 2:
The patent replaces complex electronic measurement and processing systems with simple mechanical/electrical temperature-sensitive switches. This substitution maintains sufficient temperature detection capability for safety monitoring while greatly simplifying system operation and reducing the need for sophisticated signal processing.
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 system allows for early detection of faults, preventing further damage by interrupting the electric connection and providing an overheat signal, thus enhancing reliability and safety.
Implementation Method 1
each temperature sensitive switch comprises a first electric terminal and a second electric terminal and is adapted to switch from a closed position to an open position, in which an electric connection between the first electric terminal and the second electric terminal is interrupted when a switch temperature at the temperature sensitive switch is exceeded
Data Source
AI summary
A compressor for a commercial vehicle comprises:a plurality of cylinders, wherein each cylinder accommodates a reciprocating piston, wherein the reciprocating piston is driven by a crankshaft, anda plurality of cooling means, arranged at a cylinder head region of the cylinder, wherein one specific cooling means is assigned to one cylinder respectively.The compressor assembly comprises a sensor network, wherein the sensor network comprises a plurality of temperature sensitive switches, whereineach temperature sensitive switch is assigned to a cylinder.