Sensors and regulators

Components of the “Sensors and Regulators” category provide accurate diagnostics, control and regulation of parameters in the fuel system of diesel engines. They are responsible for stable fuel supply, maintenance of optimal pressure and protection of the system from overload. These are critically important elements for the correct operation of Common Rail systems, as well as for ensuring the economy, power and durability of power units.

Temperature sensors and fuel pressure sensors

Device type:

• Combined sensor or separate fuel temperature or pressure sensors.

Purpose / function: Measures fuel pressure in the fuel rail or delivery system.

• Controls fuel temperature to optimize the injection process.
• Transmits data to the ECU to automatically adjust engine operating modes.

Compatibility:

Fuel Systems Bosch, Delphi, Denso, Isuzu, VDO Siemens, Cummins; diesel engines of cars, trucks, special equipment.

Technical specifications:

• Pressure range: 0–1800 bar
• Output type: analog or digital signal
• Supply voltage: 5V or 12V
• Connector: 2-pin / 3-pin
• Temperature range: -40°C to +125°C

Shut-off valve (fuel shut-off valve)

Device type:solenoid (electromagnetic) valve

Purpose / function:

• Provides quick shut-off of fuel supply in the event of an emergency engine stop or ignition switch off.
• Protects the system from backflow or unwanted fuel leakage.

Compatibility:

Installed on diesel engines of agricultural machinery, generators, construction equipment, etc.

Technical specifications:

• Operating voltage: 12V/24V
• Control type: electromagnetic
• Throughput: up to 100 l/h
• Response time: ≤1 second
• Temperature range: -30°C to +85°C

Fuel rail and fuel pump valves (fuel pressure regulators)

Device type: pressure regulating valve / drain valve / high pressure valve

Purpose / function:

• Maintains stable pressure in the fuel rail according to engine operating modes.
• Prevents excess pressure in the system by diverting excess fuel into the return line.
• Controls the operation of the high-pressure fuel pump.

Compatibility:

Common Rail systems: Bosch CP1, CP3, Denso HP3, HP4, Delphi

Application: passenger cars, commercial vehicles, agricultural machinery.

Technical specifications:

• Working pressure: up to 2000–2500 bar
• Control type: PWM or analog signal
• Mounting: threaded or flanged
• Guaranteed life: over 1 million cycles

With precise electronic control and high-quality workmanship, these components are critical to ensuring fuel economy and smooth engine operation.

You can always contact Aspect Plus specialists for help in selecting the necessary spare parts for your fuel system, get advice and additional information regarding technical units and other components.

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