The recent automotive trend is focused on technologies on small-sized and lightweight body and high powered power train demanded by high performance and low fuel consumption requirements. Consequently, engine vibration and noise of the car, which gets lighter, increase by 10% or more compared to previous models. The vibration insulation performance improvement of auto parts has emerged to be very important in the sensible vehicle development. Possible ways to insulate solid borne sound are to increase rigidity of the car body or parts, the damper mounted on the transmission and introduction of electronic parts. However, problems are increased fuel consumption due to increased weight and excessive cost increase. Enhanced insulation of the rubber hose, one of transmission parts, is one of the effective ways for blocking intrusion of solid borne sound. We are focusing on performance enhancement of the rubber hose by continuous new material and new technology development.
The function of the hose is to transport fluid between parts to supply power, coolant, lubricant and fuel to each system. In addition, it has excellent insulation effect on vibration and noise between parts.
