Integrated Electric Water Pump With Internal Valve Flow Path
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Solution Overview
Problem
Conventional separate installation of water pumps and valve assemblies in vehicles increases installation area, manufacturing costs, and complexity, requiring additional fastening members and sealing structures, which complicates assembly and reduces efficiency.
Innovation Solution
Integrally installing an impeller and valve inside an integrated housing, with an integrated flow path connecting the outlet and intake paths, eliminating the need for separate connection members and sealing structures, and allowing coolant to directly cool the motor and impeller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water pump and valve assembly are installed separately, then each component can be independently manufactured and maintained, but installation area increases and manufacturing costs increase due to additional fastening members and sealing structures
Solution Approach 1:
The patent combines the water pump body and valve assembly into a single integrated housing structure. The valve is installed inside the water pump housing, eliminating the need for separate fastening members and external connections. This merging reduces the number of parts, simplifies assembly, and lowers manufacturing costs while maintaining the functionality of both components.
2Reliability
If separate fastening members and sealing structures are used to connect water pump and valve assembly, then connection reliability is improved, but weight increases and manufacturing costs increase
Solution Approach 1:
The valve assembly is integrated into the water pump housing as a unified structure, eliminating separate fastening members and sealing structures. The housing itself provides the connection interface, reducing weight while maintaining connection reliability through the integrated design that eliminates potential failure points at connection interfaces.
3Productivity
If separate connection between water pump and valve assembly is used, then assembly flexibility is maintained, but pipeline efficiency decreases due to differential pressure and complex flow path shape
Solution Approach 1:
The valve outlet flow path and impeller intake flow path are integrated into a continuous, simplified flow channel within the housing. This eliminates complex external connections and differential pressure issues, creating a smooth fluid path that improves pipeline efficiency and reduces flow resistance while maintaining assembly flexibility.
4Ease of manufacture
If multiple components are assembled separately, then ease of repair is improved, but assembly process complexity increases and manufacturing costs increase
Solution Approach 1:
The water pump and valve assembly are integrated into a single module that functions as one unit. This simplifies the assembly process and reduces manufacturing costs, while the modular design allows the entire unit to be easily replaced or maintained as a single component, balancing repair ease with assembly simplicity.
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
Simplifies the overall structure, reduces weight and manufacturing costs, improves pipeline efficiency, and provides effective cooling of the motor and impeller, while stabilizing fluid flow and reducing noise and cavitation.
Implementation Method 1
an impeller (40) that circulates the coolant to the outside
Implementation Method 2
a coolant is introduced into an impeller through the inside of a rotor, by integrally connecting an outlet flow path formed at an upper end of a valve and an intake flow path inside a rotor connected to a discharge flow path of the impeller
Data Source
AI summary
Provided is a valve-integrated electrical water pump in which an impeller for circulating a coolant to the outside and a valve for selectively opening and closing a plurality of ports inside an integrated housing to control a circulation of a coolant used in electric vehicles, thereby simplifying the overall structure of the pump and simplifying an internal flow path.