Piston Pump Sealing Element Integration for Brake System Assembly
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Solution Overview
Problem
Existing piston pumps for vehicle brake systems are complex to assemble and disassemble, and costly to produce due to the large number of components, which complicates manufacturing and increases assembly time.
Innovation Solution
A piston pump design where the sealing element is integrated with the receiving means as a single component, forming a snap connection with the piston rod, reducing the number of components and simplifying assembly and disassembly, while also protecting the cylinder from piston contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sealing element and receiving means are designed as separate components, then the piston pump can be assembled and disassembled with standard procedures, but the assembly and disassembly process becomes complex and time-consuming due to the large number of components
Solution Approach 1:
The sealing element and receiving means are merged into a single integrated component. The receiving means is formed directly as part of the sealing element, eliminating the need for separate receiving means components. This integration reduces the total number of components and simplifies the assembly and disassembly processes while maintaining all necessary functions.
2Ease of manufacture
If multiple separate components are used in the piston pump, then each component can be optimized for its specific function, but the manufacturing costs increase due to the large number of parts
Solution Approach 1:
By integrating the receiving means into the sealing element, the number of separate parts is reduced, which directly lowers manufacturing costs. The integrated design eliminates the need for additional fasteners, seals, and assembly steps associated with multiple separate components, while still providing the necessary functional optimization through the unified structure.
3Ease of operation
If the piston rod is not pre-mounted on the sealing element, then the piston pump can be assembled in a straightforward sequence, but the assembly process becomes more complex and prone to errors
Solution Approach 1:
The piston rod is pre-mounted onto the sealing element before the assembly is installed into the piston pump housing. This preliminary assembly step creates a pre-assembled unit that is easier to handle and install, reducing the complexity of the overall assembly process and minimizing the risk of assembly errors.
4Ease of operation
If the piston rod can contact the cylinder inner wall during assembly, then the assembly process is more flexible, but damage to the cylinder or piston may occur
Solution Approach 1:
The snap connection acts as an intermediary mechanism between the piston rod and sealing element. It provides a controlled connection point that guides the piston rod into the correct position without allowing direct contact between the piston rod and cylinder inner wall, thereby preventing damage while maintaining assembly flexibility.
Data Source
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AI summary
The invention relates to a piston pump (10) for a vehicle braking system, with a housing section (12) and a piston (26), which is guided in the housing section (12) in a slidable manner, and having an accommodating means (20) for accommodating an intake valve (22), a sealing element (18) adjoining the accommodating means (20) for sealing the piston (26) against the housing section (12), and a piston rod (62) adjoining the sealing element (18), the sealing element (18) being embodied in one piece with the accommodating means (20).