Low Pressure Oil Cooled Ram Bushing with Check Valve Cooling
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Solution Overview
Problem
Current cooling systems for ram bushings in bodymakers, which utilize high pressure pumps, are expensive, prone to degradation, and provide insufficient cooling due to limited fluid flow and pressure from low pressure systems, often leading to power degradation or circuit tripping when trying to increase flow or pressure.
Innovation Solution
A low pressure fluid cooling system with check valves on a T-coupling downstream of the low pressure pump and a heat exchanger, allowing pressure maintenance while providing relief during overpressure conditions, ensuring sufficient cooling fluid flow to the ram bushing without overloading the pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a high pressure pump is used to cool the ram bushing, then sufficient cooling fluid pressure and flow rate are achieved, but the system becomes more expensive and prone to degradation
Solution Approach 1:
A check valve is introduced as an intermediary component in the cooling system. The check valve maintains sufficient pressure and flow rate for effective cooling while protecting the low pressure pump from operating beyond its limits, thereby extending pump life and reducing degradation without sacrificing cooling performance
2Temperature
If the flow rate or pressure in the low pressure system is increased to improve cooling, then cooling effectiveness improves, but the pump draws too much power causing degradation or circuit breaker tripping
Solution Approach 1:
The check valve creates a pressure feedback mechanism that automatically regulates system pressure. When pressure reaches a certain level, the check valve prevents further pressure buildup, thereby limiting the power draw of the low pressure pump while maintaining sufficient cooling flow rate and pressure
3Use of energy by moving object
If the low pressure system operates at limited pressure and flow rate, then pump power consumption is reduced, but sufficient cooling of the ram bushing is not achieved
Solution Approach 1:
The check valve acts as a pressure-maintaining intermediary that enables the low pressure pump to operate at reduced power consumption while still delivering sufficient pressure and flow rate for effective cooling by preventing pressure drops and maintaining system pressure within optimal ranges
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 effectively cools the ram bushing using a low pressure pump, maintaining adequate fluid pressure and preventing pump overload, thus extending its operational life and reducing energy consumption.
Implementation Method 1
The check valve allows for the pressure to be maintained in the cooling system, but also allows pressure to be relieved in the event of an over pressure condition
Implementation Method 2
A low pressure, and low current, pump, hereinafter a 'low pressure pump,' is disposed on the primary cooling conduit and is structure to pump a fluid therethrough
Implementation Method 3
The friction created when the ram passes through the ram bushing causes the ram bushing to heat up. The heat in the ram bushing is reduced by passing a fluid, such as, but not limited to, oil, through the ram bushing
Data Source
AI summary
A low pressure system for cooling a ram bushing is provided. The low pressure system includes at least one check valve disposed on a T-coupling downstream of the low pressure pump. The check valve allows for the pressure to be maintained in the cooling system, but also allows pressure to be relieved in the event of an over pressure condition.