Integrated Check Valve in Pump Housing
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Solution Overview
Problem
Existing pump systems require separate check valves for main and additional pumps, leading to increased costs and installation space, especially in automotive applications where oil leakage prevention is necessary.
Innovation Solution
A pump system that integrates a check valve for the additional pump within the housing, utilizing a cold starting plate as both a check valve and a sealing mechanism, eliminating the need for a separate valve between the main pressure outlet and the consumer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate check valves are used for main pump and additional pump, then oil leakage prevention is reliable, but device complexity and installation space increase
Solution Approach 1:
The patent combines the check valve functions for both the main pump and additional pump into a single integrated check valve assembly. This unified valve structure prevents oil leakage from both pumps simultaneously while reducing the total number of separate valve components needed in the system.
Solution Approach 2:
The integrated check valve assembly serves multiple functions: it prevents oil leakage from the main pump, prevents oil leakage from the additional pump, and manages fluid flow between both pumps and the consumer. This multi-functional design eliminates the need for separate dedicated check valves for each pump.
2Reliability
If separate check valves are installed for main and additional pumps, then oil leakage is prevented, but installation space increases
Solution Approach 1:
The check valve functions for both pumps are merged into a single compact assembly that occupies less space than two separate valves would require. This integrated design maintains reliable oil leakage prevention while reducing the overall footprint in the installation area.
Solution Approach 2:
The check valve assembly is designed to accommodate multiple functional elements within a compact structure, where components are nested or arranged in a space-efficient configuration that prevents oil leakage while minimizing installation space requirements.
3Reliability
If multiple separate valves are used, then oil leakage prevention is thorough, but manufacturing costs increase
Solution Approach 1:
By combining the check valve functions into a single integrated assembly, the patent reduces the total number of parts that need to be manufactured, assembled, and tested. This consolidation lowers manufacturing complexity and associated costs while maintaining thorough oil leakage prevention across both pump systems.
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
This configuration simplifies the oil supply system, reduces installation space, and prevents oil leakage by using a single valve setup, enhancing operational efficiency and cost-effectiveness.
Implementation Method 1
a cold starting plate which is prestressed by means of a spring element against the pressure plate in such a way that, at least at a standstill of the pump, it closes the at least one opening in the pressure plate
Implementation Method 2
prevents oil leakage by using a single valve setup
Data Source
AI summary
The invention relates to a pump, having a contour ring, having a rotor, having vanes, having side plates, having a housing and a housing cover, having under-vane grooves for supplying the lower vane faces with pressure, the vanes being arranged radially displaceably in the rotor and extending under the vanes as a result of the pressure and being pressed against the contour ring. Furthermore, the invention relates to a system for supplying oil to a consumer.