Toyoda Gosei Co., Ltd. Toyoda Gosei Co., Ltd.

Functional Components

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These are important fuel- and brake-related parts that support the basic vehicle functions of driving, turning, and stopping. In addition to their reliable quality, we have succeeded in making products that are lighter and more compact, capturing a leading share of the world market.

Fuel Tank Peripheral Parts

Fuel Tank Peripheral Parts

1Plastic fuel filler pipes

These pipes convey fuel to the fuel tank. They function for the smooth flow of fuel and to prevent backflow.

Plastic fuel filler pipes

2Fuel filler caps

These caps are attached to prevent fuel leakage from the intake port when the gas pump nozzle is inserted, by functioning as a seal.

Fuel filler caps

3Capless device

A device designed to make refueling more convenient by simply inserting the nozzle without opening or closing the filler cap when refueling.

Capless device

4Fuel hoses and tubes

These rubber and plastic pipes send fuel to the engine and fuel vapor to the atmosphere via the fuel vapor cleaner.

Fuel hoses and tubes

5Cutoff valves

These valves prevent the elevation of pressure inside the tank by releasing vaporized gasoline when the internal temperature rises. The number used on a vehicle has been reduced by raising the ventilation performance with a modified structure, contributing to lighter weight of the fuel tank overall.

Cutoff valves

6Fill limit vent valves

These valves restrict the amount of fuel when the tank becomes full, functioning to seal and prevent variation in fuel levels.

Fill limit vent valves

7Inlet check valve

Check valves prevent fuel from flowing backwards out of the fill tube opening when the tank becomes full.

Inlet check valve

8High pressure hydrogen tanks

One of the main components of fuel cell electric vehicles (FCEVs). The thickness has been minimized and the capacity increased while maintaining the tank’s compressive strength. The hydrogen storage efficiency is about 10% higher than the previous tank.

High pressure hydrogen tanks

Engine Peripheral Parts

Engine Peripheral Parts

9Plastic turbo ducts

These pipes send compressed air to raise engine output. In addition to withstanding high pressure and temperature, they absorb engine vibrations. (Long, complex pipes are blow formed with plastic, reducing weight by about 50 %.)

Plastic turbo ducts

10Radiator hoses

These hoses connect the engine and radiator for the circulation of the coolant that is needed to cool the engine.

Radiator hoses

11Noise absorbing air intake ducts

These ducts take in outside air needed in engine revolution. Intake noise is reduced with the use of air permeable members in part of the duct.

Noise absorbing air intake ducts

12Air cleaner hoses and resonators

Air cleaner hoses are used in providing the clean air needed for engine revolution. Resonators reduce the noise that is generated when air is taken in.

Air cleaner hoses and resonators

13Engine covers

By covering the top of the engine, these covers make the engine compartment more aesthetically pleasing and reduce noise from the engine itself.

Engine covers

14Plastic water pipes

These pipes are placed around the engine. They include several types with different functions. They are used for air conditioning, oil cooling, turbo cooling, and other functions.

Plastic water pipes

Chassis and Drive Train Parts

Chassis and Drive Train Parts

15Battery cases

Battery case made of plastic stores multiple batteries

Battery cases

16Brake hoses

These hoses transmit hydraulic pressure in the body-side brake system to the wheel-side brake system. They are flexible and highly durable so that they can follow the movement of the wheels.

Brake hoses

17Constant velocity joint boots

These boots have a cylindrical, bellows shape and are used to cover constant velocity joints, which turn and flex. They keep joint lubricating grease in and water and dirt out.

Constant velocity joint boots

18Oil pumps

These pumps suction up and circulate oil to reduce friction in the transmission gears and bearings. Leveraging our plastic precision molding technology, we have made the gears and other oil pump components of plastic and reduced mass by about 30%.

Oil pumps
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