Thermally Expandable Throttle Plug for Diesel Pump Pressure Regulation
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Solution Overview
Problem
Existing pressure regulators for Diesel pumps face challenges in maintaining optimal fluid flow at varying temperatures without manual adjustment, as the viscosity of the fluid changes, affecting the regulator's performance.
Innovation Solution
A fluid pressure regulation device with a throttle plug made of thermally expandable material, such as rubber, with a high thermal expansion coefficient, integrated into the piston or damping orifice, which dynamically adjusts the orifice size with temperature changes to maintain consistent performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-sized orifice is used in the regulator piston, then the regulator can maintain pressure at a specific temperature, but it cannot maintain optimal fluid flow at varying temperatures due to fluid viscosity changes
Solution Approach 1:
The patent changes the physical parameter of the orifice size by using a throttle plug made of thermally expandable material. As temperature changes, the material's dimensions change, dynamically adjusting the orifice size to compensate for fluid viscosity variations and maintain optimal flow across different operating temperatures.
Solution Approach 2:
The patent directly applies thermal expansion by selecting a throttle plug material with a thermal expansion coefficient of more than 50 x 10^-6 m/m/K. This ensures the material expands and contracts significantly with temperature changes, allowing the orifice size to automatically adjust to maintain consistent fluid flow despite temperature variations.
2Adaptability or versatility
If an adjustable orifice is used to maintain optimal flow at different temperatures, then temperature adaptability is improved, but manual adjustment is required which increases device complexity and operation time
Solution Approach 1:
The patent implements self-service by allowing the throttle plug to automatically adjust the orifice size in response to temperature changes. The thermally expandable material self-regulates the flow without requiring external intervention, manual adjustment, or complex control systems, thereby maintaining adaptability while simplifying the device.
Solution Approach 2:
The patent replaces the mechanical adjustment system (screws, valves, or other manual control mechanisms) with a thermal-mechanical system. The thermal expansion of the material directly translates to orifice size changes, eliminating the need for complex mechanical adjustment devices and reducing overall system complexity.
3Reliability
If manual adjustment of the orifice is implemented, then optimal performance at different temperatures can be achieved, but the regulator requires maintenance intervention and is not fully automatic
Solution Approach 1:
The throttle plug material performs the regulation function automatically through its inherent thermal expansion properties. As temperature varies, the material expands or contracts to maintain optimal orifice size, completely automating the performance optimization process without requiring manual intervention or maintenance.
Solution Approach 2:
The thermally expandable material acts as an intermediary between temperature changes and flow rate control. It translates thermal energy into mechanical dimension changes, automatically mediating the relationship between temperature and fluid flow to maintain consistent performance across varying conditions.
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 solution ensures optimal pressure regulation performance across different temperatures without the need for manual adjustments, ensuring consistent fluid flow and pump durability.
Implementation Method 1
a throttle plug made of thermally expandable material, such as rubber, with a high thermal expansion coefficient, integrated into the piston or damping orifice, which dynamically adjusts the orifice size with temperature changes
Data Source
AI summary
A fluid pressure regulation device including at least one flow path through which fluid is adapted to flow, wherein said flow path includes a throttle plug located therein, and wherein said throttle plug is formed of substantially thermally expandable material