Cam Phase Regulator Assembly with Rotor-Integrated Oil Control Valve
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Solution Overview
Problem
The existing cam phase regulator assemblies have a complex mounting relationship among the rotor, engine oil control valve, and camshaft, leading to high production costs and assembly difficulties due to numerous components.
Innovation Solution
The cam phase regulator assembly integrates the engine oil control valve components within the rotor, using a retaining plate to mount the one-way valve and filter directly, with supporting and timing pins for alignment, and a sprocket wheel for guidance, simplifying the structure and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engine oil control valve is inserted into the center of the rotor and interlinked with the camshaft by threads, then the valve can be mounted securely, but the mounting relationship becomes complicated and production costs increase
Solution Approach 1:
The patent integrates the engine oil control valve directly into the rotor structure, merging two previously separate components (valve body and rotor) into one unified structure. This eliminates the need for separate mounting operations and threaded interlinking with the camshaft, thereby reducing mounting complexity while maintaining secure attachment through the integrated design
2Reliability
If the one-way valve and filter are mounted at the oil inlet of the engine oil control valve, then hydraulic fluid can be controlled and filtered, but the number of components increases and assembly difficulty increases
Solution Approach 1:
The one-way valve and filter are integrated directly into the rotor structure at the oil inlet position, combining multiple functional components (filtering mechanism and one-way valve) with the rotor itself. This eliminates the need for separate mounting operations and reduces the number of discrete components, thereby simplifying assembly while maintaining hydraulic fluid control functionality
3Adaptability or versatility
If multiple components are assembled into the cam phase regulator, then functional requirements are met, but production costs increase
Solution Approach 1:
The patent consolidates multiple previously separate components (engine oil control valve, one-way valve, filter, and rotor) into an integrated structure where the rotor serves as the foundational component incorporating all other functions. This reduces the total number of parts that need to be manufactured and assembled, thereby lowering production costs while maintaining all necessary functional requirements for cam phase regulation
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 design simplifies the assembly process, reduces production costs, and enhances mounting reliability by integrating components within the rotor, while ensuring accurate alignment and sealing, thus improving the overall efficiency and cost-effectiveness.
Implementation Method 1
The spring provides an elastic restoring force for a valve core
Data Source
AI summary
The present disclosure relates to a cam phase regulator assembly. The cam phase regulator assembly includes a stator, a rotor, and an engine oil control valve. The rotor is rotatably mounted on the radial inner side of the stator, the engine oil control valve comprises a valve core and an elastic piece, and the valve core is mounted on the radial inner side of the rotor in a manner of being movable in the axial direction. The cam phase regulator assembly further includes a retaining plate mounted at an axial end of the rotor. A hydraulic flow channel leading to the rotor is provided on the retaining plate, and the elastic piece is abutted between the retaining plate and the valve core along the axial direction.