Oil Filter Bypass Valve Conductive Closure Detection
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Solution Overview
Problem
The existing oil filter devices have complex structures that complicate their design and functionality.
Innovation Solution
The oil filter device comprises a filter case with a conductive lid, a filter element, a bypass valve, and a controller. The bypass valve is operated by a valve disc, a valve shaft, and a valve elastic member, which are connected through a series of conductive members to allow for energization control and simplify the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex structure is used in the oil filter device, then the functionality and control capability are improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into the valve disc assembly. The valve disc serves both as a flow control element (opening/closing bypass passage) and as a signal generation element (generating voltage signal through relative movement with valve body). This merging of control function and detection function into a single component reduces overall device complexity while maintaining control capability.
Solution Approach 2:
The valve disc is designed with multi-functionality: it acts as a mechanical valve for flow control, an electrical conductor for signal generation, and a positional indicator for system state detection. The valve shaft similarly serves both mechanical actuation and electrical signal transmission functions. This multi-functionality eliminates the need for separate components, simplifying the overall structure.
2Measurement precision
If multiple components are used for valve operation and control, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The valve mechanism generates its own control signal through the relative movement between the valve disc and valve body. When the valve disc moves relative to the valve body, it generates a voltage signal that directly indicates the valve state (open or closed). This self-service mechanism eliminates the need for external sensors or complex detection systems, achieving precise state detection while maintaining simple structure.
Solution Approach 2:
The patent replaces complex mechanical sensing mechanisms with an electrical signal generation approach. Instead of using separate mechanical switches, sensors, or detection mechanisms, the system uses the electrical properties of the valve disc and valve body interaction to generate control signals. This substitution simplifies the mechanical complexity while maintaining or improving detection precision.
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 structure of the oil filter device while maintaining effective operation, allowing for accurate detection of the bypass passage's open or closed state based on energization states.
Implementation Method 1
a valve elastic member that generates an elastic force to bring the valve disc into contact with the valve body
Implementation Method 2
a relay elastic member having conductivity and connected to the input member
Data Source
AI summary
An oil filter device includes: a filter case including a case body and a lid, the lid configured to cover a case opening provided in the case body; a filter an element disposed in a main passage provided in an internal a space of the filter a case; a conductive valve body having conductivity and disposed in a bypass passage provided in the internal space; a valve conductive shaft having conductivity and supported by the valve body via a valve an insulating member; a valve conductive disc having conductivity and movably supported by the valve shaft and configured to close closing the bypass passage by coming into contact contacting with the valve body; a valve an elastic member that generates generating an elastic force to bring the valve disc into contact with the valve body; an a conductive input member having conductivity and supported by the lid via the case insulating member; a conductive relay elastic member having conductivity and connected to the input member; a conductive relay member having conductivity, fixed to the valve shaft and connected to the relay elastic member; and a controller that supplies supplying current to the valve disc via the input member to determine whether the bypass passage is closed based on an energization state across the valve disc and the valve body.