Multi-Channel Electric Water Pump for Engine Warm-Up Control
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Solution Overview
Problem
Conventional water pumps in vehicles operate continuously, leading to inefficient discharge flow rates that delay engine warm-up and increase costs and complexity due to single-path distribution of cooling medium, which complicates the internal structure and increases volume.
Innovation Solution
An electric water pump with multiple channels and a partitioned distribution space, allowing fluid to be distributed through multiple paths using a single impeller, reducing costs and weight through structural simplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single path for distributing cooling medium is applied to electric water pump, then the structure is simple, but the driving efficiency is not sufficiently secured
Solution Approach 1:
The distribution space is divided into multiple channels (first channel, second channel, third channel) that separately guide cooling medium to different regions. This segmentation allows the single electric water pump to efficiently distribute coolant through multiple paths, resolving the contradiction between structural simplicity and driving efficiency by maintaining a simple single-pump structure while achieving multi-path distribution capability.
2Adaptability or versatility
If an additional path for distributing separate cooling medium is formed, then fluid distribution capability is improved, but internal structure becomes complicated and volume increases
Solution Approach 1:
Multiple channels (first, second, and third channels) are merged into a single integrated distribution space within one housing. The channels share common components such as the housing structure and work together to distribute cooling medium to multiple outlets. This merging approach provides versatile fluid distribution capability while avoiding the complexity and volume increase that would result from using separate pump units.
3Reliability
If discharge flow rate is set under maximum output conditions to prevent engine overheating, then cooling protection is ensured, but discharge flow rate increases linearly under low load conditions causing unnecessary cooling and delayed engine warm-up
Solution Approach 1:
The electric water pump enables dynamic control of discharge flow rate by adjusting motor operating conditions. Unlike conventional mechanical pumps that operate continuously at speeds proportional to engine RPM, the electric pump can vary its output to match actual cooling demands. This allows the system to reduce flow rate during engine warm-up to accelerate temperature rise, while maintaining adequate flow rate under high load conditions to prevent overheating.
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 enables efficient distribution of fluid through multiple paths, reducing costs and weight while maintaining control over discharge flow rates, thus enhancing engine warm-up efficiency and simplifying the internal structure.
Implementation Method 1
an impeller provided in the distribution space of the housing and connected to the motor to rotate, formed so that the distribution space is partitioned for each inlet and outlet that communicate with each other among the plurality of inlets and outlets, and pumping the fluid to each inlet and outlet when rotating by driving of the motor
Data Source
AI summary
The present invention provides an electric water pump in which a plurality of inlets and outlets for the distribution of fluid are provided in one housing, and the fluid is pumped into each space by an rotational operation of one impeller in a state where a space is partitioned for each inlet and outlet through which the fluid is distributed, thereby distributing the fluid through multiple paths with one water pump and reducing costs and weight through structure simplification.