Engine Oil Float Detection Housing with Stabilizing Through-Hole
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Solution Overview
Problem
Existing engine oil-level detection apparatuses are susceptible to transient fluctuations in oil surface levels and have laborious wiring procedures, leading to unreliable oil-level detection and increased costs.
Innovation Solution
A float-based oil-level detection apparatus with a housing featuring a through-hole on the opposite side of the oil dipper's movement direction, a simple switch design with conduction and contact pieces, and a bus bar system for easy wiring, along with a tapered lower cover to minimize oil fluctuations, ensuring reliable and cost-effective detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the housing has open sidewalls with cylindrical bushes for oil flow, then oil can circulate freely, but the oil surface level becomes susceptible to transient fluctuations when the oil dipper lifts oil
Solution Approach 1:
The housing sidewall is segmented into two functional zones: a first sidewall portion with cylindrical bushes for oil circulation and a second sidewall portion with a through-hole for oil level stabilization. This segmentation allows different regions to serve different functions, maintaining both oil circulation and detection stability.
Solution Approach 2:
The through-hole in the second sidewall portion acts as an intermediary element that allows oil to enter the housing from the oil pooling chamber while preventing the oil surface from fluctuating transiently. This intermediary structure mediates between the need for oil flow and the need for stable oil level detection.
2Ease of operation
If wires are laid out in the oil to draw out reed switch wires, then electrical connection is achieved, but the wiring procedure becomes laborious
Solution Approach 1:
The reed switch is extracted from the housing and positioned externally, with its wire connection point located on the housing exterior. This extraction eliminates the need to lay wires through the oil, significantly simplifying the wiring procedure while maintaining electrical connection functionality.
3Reliability
If the housing is designed to accommodate float movement, then oil level detection is enabled, but the structure becomes more complex
Solution Approach 1:
The housing integrates multiple functions into a single structure: it houses the float mechanism for detection, provides oil circulation pathways through cylindrical bushes, includes a through-hole for oil level stabilization, and accommodates the reed switch externally. This merging reduces overall device complexity while maintaining detection reliability.
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 solution provides stable and accurate detection of low oil levels, simplifies wiring, and enhances the reliability and productivity of the oil-level detection apparatus by minimizing oil surface fluctuations and reducing assembly complexity.
Implementation Method 1
a float (82) that floats in the oil (12)
Implementation Method 2
a magnet (205) provided to the float (204), a reed switch (206) housed in the shaft (203) and actuated by the approach of the magnet (205)
Data Source
AI summary
A float-type oil-level detection apparatus is provided for detecting the surface of engine oil. A housing (81) for housing a float (82) has a through-hole (136) in the sidewall of the side opposite from the sidewall that faces the movement of the oil dipper (69).