Fuel Distributor Holding Device with Integrated Cable Guide
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Solution Overview
Problem
Existing fuel distributor holding devices for internal combustion engines restrict wiring space and fail to adequately protect electrical wiring, leading to potential damage and noise issues from pressure pulsations in fuel injectors.
Innovation Solution
A holding device with a housing part featuring a guide profile and a pivotable cover, along with elastic ribs on half-shells to enclose the fuel rail, allowing for improved cable routing, protection, and vibration damping, enabling secure attachment to the engine and efficient cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional brackets are used to attach the fuel distributor, then the fuel distributor can be securely attached to the engine, but the wiring space is restricted and electrical wiring is vulnerable to damage
Solution Approach 1:
The patent combines the attachment function and cable protection function into a single integrated holding device. The holding element has a U-shaped cross-section that simultaneously secures the fuel distributor to the engine and encloses the electrical wiring within its interior space, eliminating the need for separate brackets and cable protection measures.
Solution Approach 2:
The holding element serves multiple functions: it attaches the fuel distributor to the engine cylinder head, guides electrical cables through its interior space, protects the wiring from mechanical damage, and provides a mounting surface for the fuel distributor. This multi-functional design resolves the contradiction by making the attachment structure itself protective rather than restrictive.
2Strength
If traditional brackets are used for attachment, then structural support is provided, but wiring routing becomes complex and space-consuming
Solution Approach 1:
The holding device merges the structural support function with the cable routing function. The U-shaped holding element creates an integrated pathway for wiring within its interior space, eliminating the need for separate cable trays or routing channels that would increase device complexity.
3Reliability
If the holding device protects electrical wiring, then wiring reliability improves, but the device structure becomes more complex
Solution Approach 1:
The holding device structure is designed so that the same U-shaped element that provides attachment also provides protection. The interior space of the holding element naturally encloses the wiring, making protection an inherent feature rather than an added complexity.
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 reliable protection for electrical cables, reduces noise from pressure pulsations, and facilitates compact, precise routing of electrical lines, ensuring reliable operation and assembly of fuel distribution systems.
Implementation Method 1
To dampen such pressure pulsations, it is advantageous for the mounting element to have a first half-shell and a second half-shell, for at least one elastic rib to be provided on a mounting area of the first half-shell, and for at least one elastic rib to be provided on a mounting area of the second half-shell
Implementation Method 2
The elastic ribs can be made of a viscoelastic material. This allows for effective damping of vibrations caused by pressure pulsations.
Data Source
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AI summary
A mounting device (2) serves to attach a fuel distributor (3) to an internal combustion engine. This device includes several mounting elements (11, 12, 13) which can be attached to the internal combustion engine via fasteners. A cable guide (14) is also provided. The mounting elements (11, 12, 13) are connected to the cable guide (14). Furthermore, an arrangement (1) is shown comprising such a mounting device (2) and a fuel distributor (3) for guiding fuel.