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Research and Development

Hose

Home Research and Development R&D Area Hose
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  • Basic Theory of Hose

    Meaning of Hose (Rubber Hose)

    The hose refers to that made of rubber or that composed of cloth covered rubber between fabric strands or inside and outside. Its function is to transport fluid between parts to supply power, coolant, lubricant and fuel to each system.

    Role of Reinforced Braid

    The reinforced braid inserts the reinforced layer between rubber layers to withstand the pressure when the pressure builds in the hose. Depending on the twisting method and the weaving method, the external quality and the durability performance of the hose increase.

    Reinforced Braid Unit

    Denier : The unit of strand thickness. When the strand length is 450m and its weight is 0.05g, it is 1 denier. That is, the strand weight (g) per 9000m is the denier
    Ex) For a 9000m long strand, if its weight is 1000g, it is 1000 deniers and if 1,500g, 1500 deniers.

    Hose Type

    Hose Type
    NO Structure by Product Type Symbol Product Type
    1 Total rubber type - single layered hose 1A Total rubber type - single layered hose
    2 Inner layer rubber + outer layer rubber - double layered hose 1B Inner layer rubber + outer layer rubber - double layered hose
    3 Inner layer rubber + reinforcement layer + outer layer rubber - triple layered hose 3A Inner layer rubber + reinforcement layer + outer layer rubber - triple layered hose
    4 Inner layer rubber + intermediate layer rubber + reinforcement layer + outer layer rubber - quadruple layered hose 3B Inner layer rubber + intermediate layer rubber + reinforcement layer + outer layer rubber - quadruple layered hose
    5 Inner layer rubber + THV resin layer + outer layer rubber - triple layered resin hose THV Inner layer rubber + THV resin layer + outer layer rubber - triple layered resin hose
    6 Rubber layer + outer reinforcement layer - double layered outer fabric hose 2A Rubber layer + outer reinforcement layer - double layered outer fabric hose

    Test Items by Hose Groups

    Test Items by Hose Groups
    Item Cooling System Fuel System Braking System Steering System Air System
    Applicable Hose - Radiator Hose
    - Water Hose
    - Heater Hose
    - T/Body Hose
    - Reservoir Hose     		- Vapor Hose
    - Return Hose
    - Leveling Hose
    - Feeding Hose
    - Filler Neck Hose     		- Vacuum Booster
    Hose     		- Power Steering
    Return Hose - Power Steering
    Suction Hose     		- ENG Vacuum
    - PCV&Breather
    Hose - DPF Hose
    - I/Cooler Hose
    Performance Test 1. Bursting pressure
    2. Outer diameter variation
    3. Air tightness
    4. Negative pressure     		1. Bursting pressure
    2. Outer diameter variation
    3. Air tightness
    4. Negative pressure     		1. Bursting pressure
    2. Outer diameter variation
    3. Air tightness
    4. Negative pressure(negative pressure leak)     		1. Bursting pressure
    2. Outer diameter variation
    3. Air tightness
    4. Negative pressure     		1. Bursting pressure
    2. Outer diameter variation
    3. Air tightness
    4. Negative pressure
    Durability Test pressure+vibration+temperature(antifreeze) pressure+vibration
    +temperature
    (antifreeze)     FATIGUE &
    PVT CYCLE         		pressure+vibration+temperature(fuel) pressure+vibration
    +temperature
    (fuel)     Vibratory durability &
    IMPULSE         		vibration+temperature vibration
    +temperature     HIGH/LOW
    TEMP TEST         		pressure+temperature(power steering oil) pressure
    +temperature
    (power steering oil)     IMPULSE

         		pressure+vibration+temperature(AIR) pressure+vibration
    +temperature
    (AIR)     Durability test on the hose and pipe assembly
    Durable Equipment Coolant durability tester Impulse tester or fuel return tester Vibration durability tester Impulse tester Intercooler hose tester
  • Rubber HOSE

    Hose Definition and Future Development

    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.

    Hoses by Systems

    Cooling System
    Radiator Hose
    Heater Hose
    Oil Cooler Hose
    T/Body Hose
    Water Hose
    Reservoir Hose
    Steering System
    Power Steering
    Return Hose
    Power Steering
    Suction Hose
    Braking System
    Vacuum Booster Hose
    Air System
    ENG Vacuum
    PCV&Breather
    Hose
    DPF Hose
    I/Cooler Hose
    Air System
    ENG Vacuum
    PCV&Breather
    Hose
    DPF Hose
    I/Cooler Hose

    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.

    Related Images

    • RADIATOR HOSE
    • VACUUM HOSE
    • I/C HOSE
    • FUEL FILLER HOSE
    • WATER HOSE
    • VACUUM HOSE
    • PCV & BREATHER HOSE
    • FUEL VAPOR HOSE
    • HEATER HOSE
    • RESORVOIR HOSE
    • OIL-COOLER HOSE
    • FUEL RETURN HOSE