Water Pumps

High-reliability Water Pump Developed from the Engine System Requirements

• The material of mechanical seals having a large role to play in preventing cooling water leakage changed to silicon carbide (SiC) from alumina. Thereby heating in the sliding portion and wear of the sliding member are prevented. Sealability is also improved.
• The triple lip seal is adopted as the bearing seal on the rear side. The bearing damage caused by which cooling water leaking from the mechanical seal infiltrates in the bearing, is prevented

3-stage variable discharge oil pump

Variable valve timing

Optimal Control of Intake/Exhaust Valves for Improving Fuel Efficiency, Exhaust, and Output Power

• Fuel consumption during idling has been improved. Harmful substances in exhaust have been decreased on middle load conditions. Output has been improved on high load conditions
• Highly efficient operation possible by optimal designing in response to any conditions with combination of our current oil pump
• Product series compatible with various engines are available

Oil control valve

Ultra-compact, lightweight and low cost attributes are achieved through innovations in the magnetic component design

• Compactness in magnetic components is made possible using thin resin molding technologies
• Black scale of magnetic circuits is achieved using high-precision thickness-deviation press technologies

Resin-type surge tank & aluminium-type intake manifold

Variable intake manifold with an integrated rotary valve

High output is achieved by switching intake ports according to driving conditions

• Cost and weight are reduced by applying resin intake manifolds and variable valves
• Engine output is improved by optimally controlling air flow to cylinder chambers by switching passages having different length
• To improve engine output, a rotary valve, which has low intake pressure loss, is used for a variable intake portion

Piston

Oil pan

Alumium type cylinder head cover

Magnesium type cylinder head cover

Realization of the Lightweight Engine by Using a Magnesium Alloy

Fuel rails

Electric Oil Pumps

Compact, Lightweight and Long-life Electric Oil Pump

• Downsizing by integration of control circuit, motor and pump enables various kinds of vehicles to mount
• Noise is reduced by optimizing motor control
• The product line up from small capacity (for assisting hydraulic pressure of VVT) to large capacity (for controlling hydraulic pressure of AT) is available

Electric Water Pump

Compact, Lightweight and Long-life Electric Water Pump

• Downsizing by integration of control circuit, motor and pump enables various kinds of vehicles to mount
• Noise is reduced by optimizing motor control
• The product line up from small capacity (for cooling inverters) to large capacity (for cooling engines) is under development

Electric water pump for cooling engine

Japanese first electric water pump for cooling engine increases better fuel efficiency for Hybrid vehicles

• Improved installability by downsizing the electric water pump by the integration of electrical control circuit, motor, and pump
• Realizeｄ low-power consumption by increasing operational efficiency of electrical control circuit, motor, and pump and by optimizing their combination

High Heat Resistant "Vanadium Cast Iron" Exhaust Manifold

High Reliability and Low Cost High Thermal Resistant Exhaust Manifold through Vanadium Cast Iron

• Improved high heat strength of cast iron by high silicon and vanadium addition
• Cost reduction replacing high cost Niresist (D5S) with vanadium cast iron

Stainless Steel Exhaust Manifold with Independent Air Gapped Inner Pipe and Catalyst

Stainless Steel Exhaust Manifold which Conforms to New Long Term Emission Regulation

• Low emission and cost reduction by independent air-gapped inner long branch, double-pipe structure, and integrated catalyst
• Complies with the new long term emission regulation (four stars: Japanese domestic regulation) by achieving high engine output and low emission simultaneously

SUS Exhaust Manifold

Simplified structure of the product achieves high output power and low cost

• Optimized pipe length and diameter
• High output power achieved by introducing an independent long branch structure (to comply with a new long term emission regulation)
• Simplified structure with a single-pipe

High Performance Exhaust Module

Achieved Balance between High Power and Low Emission

• There are two catalysts in the module; one is installed close to the engine exhaust port and the other is installed downstream, which improves exhaust gas purification performance.
• The module features rapid activation of catalysts with low heat capacity. It has achieved low emission, high power and weight reduction.

Accumulator pistons