Linear-Acting Electric Pump Unit for Gas-Liquid Mixtures
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Solution Overview
Problem
Existing electric pump units are not ideal for operating with liquid/gas mixtures and lack compatibility with other devices like electrovalves, and rotary pumps struggle to maintain gas pressure when at rest, with a lack of cost-effective solutions for efficient operation.
Innovation Solution
A linear-acting electric pump unit driven by an electromagnet with non-return valves and a central inlet, utilizing a solenoid coil, magnetic pole, and armature, which includes a highly elastic bellows or piston mechanism, and an electrical control system for energy-efficient operation and integration with other devices, along with a pressure sensor for monitoring and fault detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotary pump is used, then it can deliver fluid, but it cannot maintain gas pressure when at rest
Solution Approach 1:
The pump unit uses a reciprocating piston mechanism driven by an electromagnet, creating dynamic compression and expansion cycles that enable both fluid delivery and gas pressure maintenance at rest through the compliance of the bellows
2Adaptability or versatility
If additional lines are added for assembly with electrovalves, then compatibility is improved, but device complexity increases
Solution Approach 1:
The pump unit integrates multiple functions including fluid delivery, gas pressure maintenance, and electrovalve compatibility into a single compact assembly with a central inlet, eliminating the need for additional connection lines and reducing overall system complexity
3Productivity
If the solenoid coil is operated at high power, then pumping performance is improved, but energy consumption increases
Solution Approach 1:
The electromagnet operates in periodic cycles of activation and deactivation, driving the piston through reciprocating motions that achieve effective pumping performance while minimizing average energy consumption compared to continuous high-power operation
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 efficient operation with gas/liquid mixtures, compact assembly with other devices, and energy-efficient performance, while the electrical control system ensures reliable operation and fault detection, making it suitable for applications in combustion engines and exhaust emission control systems.
Implementation Method 1
the electromagnet (2) comprises at least a solenoid coil (7), a magnetic pole (8), a back iron (9), a magnet yoke (10) and an armature (11)
Implementation Method 2
the return spring (17) pushing the armature (11) out of the magnetic pole (8)
Data Source
AI summary
A linear-acting electric pump unit and method for operating said unit. A linear-acting electric pump unit comprises an electromagnet and a pump unit. It is to be suitable for delivering gas/liquid mixtures. In order that it may be compactly assembled with other devices, it is to have a central inlet. The fluid delivered by the pump unit flows through the electromagnet and enters the pump unit on one side and leaves it on the other through the non-return valves, each arranged on the same centre line as the electromagnet. The pump unit can be used for delivery of gas/liquid mixtures, preferably in the sphere of combustion engines and their fuel supply systems and exhaust emission control systems.