Driving Pump Exhaust Channel for Gas-Tolerant Clamping Force
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Solution Overview
Problem
Conventional driving pumps fail to function effectively when the oil reservoir contains gas, as the compressible gas reduces the volume of oil available to push the piston, leading to insufficient force to move the piston.
Innovation Solution
The driving pump incorporates a main assembly with a first and second major channel, inlet and outlet blockages, chambers, and an exhaust channel to selectively isolate sections and allow gas to be discharged back to the oil reservoir, ensuring that the piston can operate even with gas present in the oil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the oil reservoir is vacuumed to remove gas before sealing, then the gas content in the oil reservoir is reduced, but it is impossible to completely eliminate gas, and the driving pump still cannot function when gas is present
Solution Approach 1:
The oil reservoir is divided into multiple chambers (first chamber, second chamber, third chamber) separated by partition walls. Each chamber can independently handle gas removal, allowing the system to maintain reliability even when gas is present in the oil, as the gas can be discharged through dedicated exhaust channels from each chamber.
Solution Approach 2:
An exhaust channel with an exhaust blockage is introduced as an intermediary mechanism between the oil reservoir chambers and the external environment. This allows gas to be selectively discharged from the chambers while preventing oil leakage, resolving the contradiction between maintaining sealed operation and removing gas interference.
2Productivity
If the driving assembly draws oil from the oil reservoir, then the piston is driven to move, but gas is drawn out simultaneously and compresses, reducing the volume of oil available to push the piston
Solution Approach 1:
The exhaust blockage is positioned to allow gas to be discharged from the chambers before the driving assembly begins its oil drawing operation. This preliminary gas removal ensures that when the driving assembly draws oil, the oil volume is not reduced by compressible gas, maintaining piston movement efficiency.
Solution Approach 2:
The system changes the physical state parameters of the fluid in the chambers by allowing gas to escape at controlled pressure points. This transforms the mixture of oil and gas into predominantly oil in the driving assembly, changing the compressibility parameter and ensuring sufficient oil volume for effective piston propulsion.
3Reliability
If the exhaust channel is opened to discharge gas, then gas can be removed from the oil reservoir, but oil may leak through the exhaust channel
Solution Approach 1:
The exhaust blockage provides different functional qualities at different locations: it allows gas to pass through the exhaust channel while blocking oil at the same location. This local differentiation of permeability properties enables gas discharge without oil leakage, resolving the contradiction between gas removal and oil containment.
Solution Approach 2:
Multiple exhaust channels are provided, one from each chamber, copying the gas discharge function across different locations. Each exhaust channel with its blockage independently handles gas removal from its respective chamber without risking oil leakage, distributing the gas discharge function while maintaining oil containment integrity.
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
This design allows the driving pump to effectively rival outer reaction forces and clamp objects tightly by discharging gas from the oil reservoir, ensuring sufficient oil flow to the piston, even when gas is present.
Implementation Method 1
because the gas is compressible, the driving assembly pressurizes the oil and the gas at the same time, which compresses the volume of the gas, and thereby the amount of the oil flows into the piston is insufficient
Implementation Method 2
When the driving assembly is operating, oil in the oil reservoir is drawn out and then pushed into the piston after pressurized, which drives the piston to move
Data Source
AI summary
A driving pump has an oil reservoir, a main assembly, a driving assembly, and a piston. The main assembly includes a first chamber, a second chamber, an exhaust channel, and an exhaust blockage. The exhaust channel communicates with the first chamber and the oil reservoir. When the piston is subjected to an outer reaction force and the driving assembly keeps pushing the first chamber, the oil and the gas in the first chamber may flow back to the oil reservoir. A clamping tool has the driving pump for controlling a clamp. Thus, even if the oil reservoir contains gas and the gas flows into the main assembly with the oil, the gas and the oil can be discharged back to the oil reservoir via the exhaust channel.