Pump Device One-Piece Housing Integration
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Solution Overview
Problem
Conventional pump devices require complex and costly housing structures to ensure stability, leading to increased manufacturing costs, logistical challenges, and potential for component damage during production, while also complicating cooling and maintenance.
Innovation Solution
A simplified pump device design featuring a one-piece cylindrical housing with direct attachment of the rotor housing to the axial end, eliminating the need for an additional housing sleeve, which reduces component count, manufacturing costs, and allows for direct cooling, while using a disk pack with stator teeth and axial sliding bearings for efficient medium conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a complex housing structure with additional housing sleeve is used to ensure stability, then the pump device achieves sufficient mechanical stability, but the device complexity and manufacturing cost increase
Solution Approach 1:
The housing part and end cover are merged into a single one-piece component, eliminating the need for separate housing sleeves and reducing the number of parts. This integration maintains mechanical stability while simplifying the overall housing structure and reducing complexity.
Solution Approach 2:
The integrated housing part serves multiple functions: it provides structural stability, acts as a mounting surface for the rotor housing, and eliminates the need for separate corrosion protection components. This multi-functionality reduces device complexity while maintaining required performance.
2Stability of the object's composition
If additional housing sleeve and multiple components are used, then the pump device achieves sufficient structural stability, but the manufacturing cost and number of components increase
Solution Approach 1:
The housing part and end cover are combined into one integrated component, reducing the total number of parts that need to be manufactured, assembled, and managed. This directly reduces manufacturing costs while maintaining structural stability through the integrated design.
3Stability of the object's composition
If additional housing sleeve is used to connect rotor housing, then the pump device achieves sufficient structural integrity, but the cooling efficiency and direct access to housing components is reduced
Solution Approach 1:
The housing sleeve is removed from the design, allowing direct access to the housing part for cooling purposes. This extraction of the intermediate component enables improved thermal management while the integrated housing design maintains structural integrity.
4Stability of the object's composition
If multiple separate components are used in housing assembly, then the pump device achieves sufficient structural stability, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The housing part and end cover are merged into a single component, eliminating multiple assembly steps and fastening operations. This reduces assembly time and complexity while the integrated design ensures structural stability is maintained.
5Stability of the object's composition
If additional housing sleeve and multiple components are used, then the pump device achieves sufficient structural stability, but the risk of component damage during manufacturing and assembly increases
Solution Approach 1:
The housing part and end cover are integrated into one piece, eliminating the housing sleeve and its associated mounting openings. This reduces the number of components that can be damaged during manufacturing and assembly, while the integrated structure maintains required stability.
Solution Approach 2:
The housing sleeve and its mounting openings are removed from the design, eliminating potential damage points and reducing the risk of component damage during manufacturing and assembly operations.
6Stability of the object's composition
If additional housing sleeve is used for connection, then the pump device achieves sufficient structural stability, but the logistics and maintenance requirements increase
Solution Approach 1:
The housing components are merged into one integrated part, reducing the number of items to be managed in logistics and the number of components requiring maintenance. This simplifies operational requirements while maintaining structural stability.
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 design results in a compact, robust, and cost-effective pump device with improved cooling, reduced risk of component damage, and simplified assembly and maintenance, ensuring reliable sealing and efficient medium conveyance.
Implementation Method 1
The axial sliding bearing can, for example, be lubricated with the medium pumped by the pumping device in order to reduce friction losses and heat generation due to friction
Implementation Method 2
The rotor housing and the pump rotor can, for example, have spherical surfaces that slide against each other, forming one or more pump chambers
Data Source
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AI summary
The invention relates to a pump device (100) for pumping a medium, in particular a gaseous and/or liquid medium. The pump device (100) has a rotor housing (110), a pump rotor (142) which is guided in the rotor housing (110), and a pump shaft (114) which is coupled to the pump rotor (142) in order to drive the pump rotor (142) in the rotor housing (110). The pump device (100) further has an electric motor (112) with a drive stator (116) and a stator winding for driving the pump shaft (114), and the pump device has a housing part (102) which has the drive stator (116) with the stator winding and a passage channel (115) for storing the pump shaft (114). The rotor housing (110) of the pump device (100) is secured directly to an axial end (154) of the housing part (102), and a closure cover (104) lying opposite the rotor housing (110) and the housing part (102) are formed in an integral manner.