Engine Cooling Hose Clamp Structure for Vibration Isolation
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Solution Overview
Problem
Conventional engine cooling structures fail to effectively prevent damage to connecting pipes from engine vibrations, as these pipes are often made of hard materials with poor vibration-absorbing characteristics, leading to potential loosening and deterioration when fixed to the engine.
Innovation Solution
An engine cooling structure that includes a radiator hose with a connecting pipe and a clamp with a transmission suppressing portion, such as a gap or buffer member, to absorb and restrict vibration transmission from the engine, thereby protecting the connecting pipe from engine vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a connecting pipe made of hard resin material is used to connect hose members, then the structural strength and rigidity are improved, but the vibration absorbing capability deteriorates causing the pipe to vibrate and potentially loosen connections
Solution Approach 1:
The patent introduces a rubber layer as an intermediary substance between the hard connecting pipe and the engine. This rubber layer acts as a mediator that absorbs vibrations from the engine before they can be transmitted to the hard pipe, preventing connection loosening while maintaining the structural strength benefits of the rigid pipe material.
Solution Approach 2:
The patent creates a composite structure by coating the outer surface of the hard resin connecting pipe with a rubber material. This composite construction combines the advantages of both materials: the hard resin provides structural strength and rigidity, while the rubber coating provides vibration absorption capability, thus resolving the contradiction between strength and reliability.
2Stability of the object's composition
If the intermediate portion of the radiator hose is fixed to the engine by a fixing member, then the swinging motion is suppressed, but vibrations from the engine are transmitted to the hard connecting pipe causing damage
Solution Approach 1:
The rubber layer serves as a vibration-isolating intermediary between the engine and the hard connecting pipe. When the hose is fixed to the engine, vibrations are transmitted through the rubber layer which absorbs and dampens them, preventing the harmful vibrations from reaching and damaging the hard pipe and its connections.
Solution Approach 2:
The rubber coating layer acts as a sacrificial element that absorbs vibration energy and deteriorates preferentially, protecting the more valuable hard connecting pipe from vibration damage. The rubber layer can be replaced if needed while the main pipe structure remains intact.
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 fixes the connecting pipe to the engine while preventing vibration-induced damage by suppressing the transmission of engine vibrations, ensuring reliable protection and preventing loosening or deterioration of the connecting pipe.
Implementation Method 1
a clamp including a pipe-side connection portion connected to the connecting pipe, and an engine-side connection portion directly or indirectly connected to the engine. The clamp is provided with a transmission suppressing portion which suppresses transmission of vibrations from the engine-side connection portion to the connecting pipe.
Data Source
AI summary
Provided is an engine cooling structure for an engine where the engine is cooled by a cooling fluid supplied from a radiator, and the cooling fluid discharged from the engine is cooled by the radiator. The cooling structure includes: an inlet hose having one end coupled to the engine, and having the other end coupled to the radiator, the inlet hose including two or more hose members, and a connecting pipe configured to connect the two or more hose members, to each other; and a clamp including a pipe-side connection portion connected to the connecting pipe, and an engine-side connection portion directly or indirectly connected to the engine. The clamp has a gap between the clamp and the connecting pipe, and the gap functions as a transmission suppressing portion which suppresses transmission of vibrations from the engine-side connection portion to the connecting pipe.