Injector Clip Structure for Load Attenuation and Rotation Prevention
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Solution Overview
Problem
Conventional clips for injectors fail to effectively attenuate fuel injection loads, leading to unstable installation and potential rotation of the injector, which adversely affects combustion performance and makes assembly challenging.
Innovation Solution
A clip design featuring a base portion that elastically supports the injector's upper and lower surfaces, with elongated elastic pieces and a stopper protrusion to prevent rotation and separation, ensuring stable installation and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional U-shaped clip structure is used to fix the injector, then the injector can be held in place, but the clip fails to effectively attenuate fuel injection loads and prevent injector rotation
Solution Approach 1:
The clip is divided into multiple functional segments: a base portion for structural support, elastic portions for load attenuation, and a rotation prevention protrusion for rotational constraint. This segmentation allows each part to specialize in addressing specific aspects of the technical contradiction, with the elastic portions handling load attenuation and the rotation prevention protrusion handling rotational stability.
Solution Approach 2:
The clip incorporates elastic portions that can dynamically deform under fuel injection loads and then recover, allowing the structure to adapt to varying load conditions. This dynamic behavior enables effective load attenuation while maintaining injector stability, resolving the contradiction between holding the injector in place and attenuating injection forces.
2Reliability
If the clip structure is made more complex to prevent rotation and improve durability, then injector stability improves, but manufacturing complexity and assembly difficulty increase
Solution Approach 1:
Multiple functions are merged into a single integrated clip structure: the base portion provides structural support, the elastic portions provide load attenuation, and the rotation prevention protrusion provides rotational constraint. By combining these functions into one component rather than using multiple separate parts, the design achieves improved reliability without proportionally increasing manufacturing or assembly complexity.
Solution Approach 2:
The clip is designed as a multi-functional component that simultaneously performs mechanical support, elastic load attenuation, and rotation prevention. This universal design approach allows a single structure to address multiple stability requirements, reducing the need for additional specialized components and simplifying the overall system.
3Ease of operation
If conventional clips are used to maintain injector stability, then some fixation is achieved, but assembly remains challenging and material usage is inefficient
Solution Approach 1:
The elastic portions of the clip utilize their own elastic properties to automatically provide load attenuation and stabilization forces. The structure serves itself by using the deformation and recovery of the elastic portions to maintain injector stability without requiring additional active components or complex adjustment mechanisms, thereby simplifying assembly while maintaining reliability.
4Duration of action of stationary object
If the clip uses more material to enhance durability and load attenuation, then fatigue resistance improves, but manufacturing cost and weight increase
Solution Approach 1:
The clip employs local quality by concentrating material and structural complexity only where needed: the elastic portions are strategically positioned to handle load attenuation, and the rotation prevention protrusion is located specifically to constrain rotational movement. This localized approach to material distribution enhances durability and load attenuation effectiveness without unnecessarily increasing overall material usage and weight.
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 clip effectively attenuates fuel injection loads, enhances durability against fatigue, prevents injector rotation, and simplifies assembly by maintaining a stable installation state, ensuring accurate fuel injection and reduced material costs.
Implementation Method 1
a pair of first elastic portions elongated from both side portions of a rear end of the base portion and bending downward; a pair of second elastic portions formed at both of the first elastic portions and bending smoothly upward
Implementation Method 2
the vibration of the engine or the vibration due to the vehicle operation is also delivered to the injector, such that there is the phenomenon that the installation state of the injector becomes unstable
Data Source
AI summary
The present disclosure relates to a clip for an injector, in particular, the clip for the injector including a base portion and an elastic piece of the clip that elastically support the upper surface of a connector housing and the lower surface of an injector cup, thus attenuating fuel injection load. In addition, an engaging piece of the clip is inserted into an engaging portion of the injector cup, thus preventing the rotation of the injector.