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HIAMS in the U.S.A.

High Pressure Fuel Pump

[Image] HPP

Hitachi Automotive Systems Americas, Inc.'s high pressure fuel pumps are designed to enhance fuel volume delivery for exceptional operation and faster vehicle response, providing a good alternative to the standard fuel pump for supercharged and turbocharged applications. The key elements of the system are a highpressure (15 MPa) fuel pump, the injectors that inject the fuel into the cylinder, and the engine control unit which incorporates a custom IC (integrated circuit) that drives the other components. The injectors and high-pressure pump drive feature a drive current that is optimized to obtain the maximum available performance resulting in fuel injection that has a wide dynamic range and is also used on supercharged Direct Injection (DI) engines. Hitachi Automotive Systems Americas, Inc. supplies control components for highpressure fuel along with drive control techniques and equipment that can obtain the maximum performance from these components.

Benefit

  • Improvement on charging efficiency and anti-knocking performance by gasoline direct injection into cylinder
  • Low Noise & Low Cost
  • Compact Size / Low Weight

Outline & Features

To provide high efficiency Direct Injection (DI) fuel supply system with simple configuration by large diameter plunger, flow rate control solenoid and integrated relief valve

  • Alcohol Fuel Resistance
  • High Flow Rate capacity
  • Higher Operating Pressure with DLC Coated Plunger (longer life)
  • Relief Valve Integrated
  • Anticorrosion by stainless steel body
  • Built-in relief valve
  • Noise Reduction
    ・Solenoid Valve
      Improved Solenoid Valve with Less Impact Structure and Noise Reduction Control
    ・Outlet Valve
      Pulsation Reduction by Optimization of Sealing Shape

Image:HPP

Application

  • Direct Injection Gasoline Engine

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