Pump Insert Locking Structure for Spring-Induced Deformation
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Solution Overview
Problem
Existing pump designs face issues with adverse deformation of the pump cover and end wall due to spring force, and there is a need for a space-saving design capable of supplying multiple fluid circuits with pressurized fluid.
Innovation Solution
A pump design featuring a pump insert supported by a spring between a housing and a pump insert, with a positioning element to secure the insert in place, and a sealing mechanism to prevent deformation and ensure efficient fluid supply to multiple circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring is used to act between the housing and pump insert, then the pump insert can be securely mounted and sealing can be maintained, but deformation of the pump cover and end wall occurs due to spring force
Solution Approach 1:
A cold-start plate is introduced as an intermediary component between the spring and the pump insert. The spring acts against the cold-start plate, which in turn acts against the pump insert, distributing the spring force more evenly and reducing localized deformation of the pump cover and end wall while maintaining secure mounting and sealing.
2Ease of manufacture
If the pump design includes separate spring and seal components, then each component can be optimized independently, but the installation of the pump insert becomes more complex
Solution Approach 1:
The seal is integrated with the cold-start plate, forming a combined component that performs both sealing and structural functions. This integration reduces the number of separate parts to be installed while maintaining the ability to optimize sealing and spring functions independently through material and design choices.
3Adaptability or versatility
If the pump is designed to supply multiple fluid circuits with different pressure levels, then versatility is improved, but the device requires more space and becomes more complex
Solution Approach 1:
The pump insert is designed with multiple outlet channels that can supply different fluid circuits with different pressure levels. The single pump insert performs multiple functions by providing pressurized fluid to various consumers simultaneously, eliminating the need for separate pumps for each circuit and reducing overall device volume.
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 minimizes deformation, facilitates easy installation, and allows for efficient fluid distribution to various consumers with separate or shared pressure levels, enhancing operational efficiency and ease of assembly.
Implementation Method 1
a spring (5) arranged between the receiving housing (20) and the second housing part (3)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Pump comprising a receiving housing (20) forming a pot-shaped receiving chamber (25) with an end wall (20c) and a circumferential wall (20d), and a pump insert (1) arranged in the receiving chamber (25), wherein the pump insert (1) comprises: - a rotor (4), - a first housing part (2) and a second housing part (3) between which the rotor (4) is rotatably arranged about an axis of rotation (D) and relative to the first and second housing parts (2, 3), - a hub ring (12) surrounding the rotor (4) and arranged between the first housing part (2) and the second housing part (3), - at least one positioning element (6), in particular pin-shaped, such as two positioning elements (6), which positions the second housing part (3) with respect to its angular position about the axis of rotation (D) relative to the first housing part (2), - wherein the at least one positioning element (6) has a recess (6a),a disc- or ring-shaped locking element engages in, which prevents the second housing part (3) from being axially pulled away from the at least one positioning element (6).