Grease Pump Relief Valve for Automatic Discharge Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional grease discharge devices require cumbersome lever operations to switch discharge amounts, risking damage to electronic material products if high load pressure is not managed properly.
Innovation Solution
A grease discharge device incorporating a motor, plunger, grease supply unit, pump, check valve, and relief valve, where the relief valve automatically adjusts discharge based on pressure changes, eliminating the need for manual lever operation and ensuring safe electronic material protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lever operation is used to switch the amount of discharge, then the discharge amount can be changed between two stages, but the operation becomes troublesome and increases the risk of damage to electronic material products
Solution Approach 1:
The relief valve automatically regulates the discharge amount based on load pressure without requiring manual lever operation. When the load pressure exceeds a predetermined threshold, the relief valve automatically opens to reduce the discharge amount, thereby protecting electronic material products from damage while eliminating the need for troublesome manual switching operations
2Reliability
If the discharge amount is not switched when load pressure is high, then the system continues to operate, but the electronic material product may be damaged
Solution Approach 1:
The relief valve functions as a pressure-sensitive feedback mechanism that automatically detects when load pressure exceeds a safe threshold and responds by opening to reduce discharge amount. This closed-loop feedback system ensures continuous operation while preventing damage to electronic material products through automatic pressure regulation
3Adaptability or versatility
If manual switch operation is required, then discharge control is possible, but the operation is troublesome and may be forgotten
Solution Approach 1:
The relief valve automatically adjusts the discharge amount based on real-time pressure conditions without requiring manual intervention. The valve self-regulates by opening when pressure exceeds the threshold and closing when pressure returns to normal, providing fully automatic discharge control that eliminates the need for manual switch operations
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 easy and automatic adjustment of discharge amounts in two stages, reducing the risk of damage to electronic material products by automatically managing pressure and eliminating the need for manual switch operations.
Implementation Method 1
The relief valve releases the grease inside the discharge path to the grease supply unit side according to a pressure rise inside the discharge path
Implementation Method 2
The valve element is biased to a valve closed position in the release flow passage with an elastic member
Data Source
AI summary
A grease discharge device includes a motor, a plunger, a grease supply unit, a pump, a check valve, and a relief valve. The plunger reciprocates by driving of the motor. The grease supply unit supplies grease to a forward movement side with respect to a backward movement side dead center of the plunger. The pump performs a discharge behavior of the grease by the reciprocation of the plunger. The check valve is disposed at a downstream side with respect to a forward movement side dead center of the plunger in a discharge path of the grease inside the pump. The relief valve is disposed between a supply portion of the grease by the grease supply unit and the check valve. The relief valve releases the grease inside the discharge path to the grease supply unit side according to a pressure rise inside the discharge path.