Hydrogen Injector Mounting Member for Noise and Vibration Control
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Solution Overview
Problem
Conventional hydrogen injection apparatuses face issues with noise generation due to metal soundproof member contact, potential damage to the support base, and instability or poor mounting accuracy with resin soundproof members, which also require larger sizes to compensate for rigidity issues.
Innovation Solution
A hydrogen injection apparatus featuring a rigid metal mounting member with a C-shaped base and annular elastic member, where the mounting member contacts the injector's outer surface, providing accurate positioning and strength while reducing the apparatus's size, and the elastic member absorbs vibrations and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a metal sound proof member is used, then vibration reduction is achieved, but noise is generated by contact between the metal sound proof member and the metal support base
Solution Approach 1:
The patent introduces a mounting member as an intermediary component between the metal sound proof member and the metal support base. This mounting member includes a base that contacts the sound proof member and a wall that contacts the support base, thereby mediating the connection and preventing direct contact between the metal sound proof member and the metal support base, which eliminates the noise generation while maintaining vibration reduction functionality
2Object-generated harmful factors
If a resin sound proof member is used, then noise generation is suppressed, but mounting accuracy deteriorates due to insufficient rigidity
Solution Approach 1:
The patent divides the mounting structure into two separate functional components: a metal mounting member that provides structural support and mounting accuracy, and a resin sound proof member that provides noise suppression. The mounting member is segmented into a base and a wall, where the base accommodates the sound proof member and the wall provides precise positioning against the support base, thereby achieving both noise suppression and high mounting accuracy
3Object-generated harmful factors
If a resin sound proof member is used, then noise generation is suppressed, but the apparatus size increases to compensate for insufficient rigidity
Solution Approach 1:
The patent segments the functional responsibilities between a compact metal mounting member and a resin sound proof member. The mounting member provides the necessary structural rigidity in a compact form, while the sound proof member provides noise suppression without needing to be oversized for structural support purposes, thereby achieving noise suppression without increasing apparatus size
4Object-generated harmful factors
If a resin sound proof member is used, then noise generation is suppressed, but the support base contact surface is damaged due to vibrations
Solution Approach 1:
The patent introduces the mounting member as an intermediary structure between the sound proof member and the support base. The wall of the mounting member contacts the support base, distributing the vibrational forces and preventing direct contact between the sound proof member and the support base contact surface, thereby preventing damage to the support base while maintaining noise suppression functionality
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 effectively suppresses noise generation, improves mounting accuracy, maintains strength, and reduces the apparatus's size, enhancing the soundproof performance and assembly efficiency compared to conventional techniques.
Implementation Method 1
an annular elastic member which is in contact with a surface of the base opposite to the contact portion of the base, and in contact with either the support base or the step which does not contact the contact portion
Data Source
AI summary
A hydrogen injection apparatus has an injector attached to an attachment hole of a body. The injector can inject hydrogen. A mounting member made of metal is provided on the outer circumferential side of the injector. An annular elastic member is provided in contact with a base of the mounting member. At the time of mounting the injector to the attachment hole, an elastic member and the mounting member are assembled in a manner that the elastic member and the mounting member are accommodated in a support base of an attachment provided at an opening of the attachment hole.