Engine Cover Assembly With Angled Groove for Debris Sealing Access
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Solution Overview
Problem
Existing engine systems face challenges in maintaining the integrity of fuel pump components due to constrained configurations, leading to issues with debris ingress and component accessibility during maintenance.
Innovation Solution
A cover assembly comprising a gear plate and cover with a groove and compression ring design that impedes debris flow while allowing easy access and maintenance, featuring angled plate walls and groove surfaces to manage insertion and removal forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a tight configuration is used to constrain fuel pump components within the engine system, then space utilization is improved, but component accessibility for maintenance deteriorates
Solution Approach 1:
The cover assembly is divided into a cover body and a gear plate that can be independently removed. The gear plate separates from the cover body to provide access to the fuel pump components, allowing maintenance personnel to reach components that would otherwise be inaccessible in a tight configuration.
Solution Approach 2:
The gear plate acts as an intermediary component between the cover body and the fuel pump components. By removing the gear plate, access to the fuel pump is provided without requiring removal of the entire cover assembly, thus maintaining space utilization while improving accessibility.
2Ease of manufacture
If a conventional cover design is used, then manufacturing simplicity is improved, but debris protection capability deteriorates
Solution Approach 1:
The groove is positioned locally at the interface between the cover body and gear plate, specifically where debris ingress is most likely to occur. This localized feature provides effective debris protection without requiring complex manufacturing throughout the entire cover assembly.
Solution Approach 2:
The groove, which could be seen as an additional manufacturing complexity, actually simplifies the overall design by providing a natural debris collection point. The groove geometry converts the potential harm of debris ingress into a beneficial feature that traps and contains debris away from critical components.
3Manufacturing precision
If symmetric groove surfaces are used, then manufacturing consistency is improved, but insertion and removal force differential deteriorates
Solution Approach 1:
The groove surfaces are designed with asymmetric angles relative to the pump shaft axis. The first groove surface has a different angle than the second groove surface, creating a mechanical advantage that reduces the force differential between insertion and removal operations while maintaining manufacturing consistency through precise angular specifications.
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 design provides effective debris protection and simplified maintenance by reducing the force differential between insertion and removal, ensuring secure sealing and ease of access to engine components.
Implementation Method 1
a compression ring positioned in the groove and contacting the plate wall
Implementation Method 2
a groove defined by a first groove surface, a second groove surface positioned a distance away from the first groove surface, and a third groove surface extending at a second angle from the first groove surface to the second groove surface
Data Source
AI summary
A cover assembly for an engine includes a gear plate. The gear plate includes a plate body defining an opening, and a plate wall contiguous with the plate body along the opening and extending at a first angle away from the plate body. The cover assembly also includes a cover including a cover rim contacting the plate body along the opening and a cover body positioned adjacent to the plate wall and defining a groove. The groove is defined by a first groove surface, a second groove surface positioned a distance away from the first groove surface, and a third groove surface extending at a second angle from the first groove surface to the second groove surface. The cover assembly also includes a sealing member positioned in the groove and contacting the plate wall.