30-01-2012, 03:22 PM
MOTORSPORT COMPONENTS
[attachment=16844]
IMPORTANT INFORMATION ABOUT FUEL INJECTORS
Important Information About Technical Specifications
• Bosch fuel injectors have their flow rates defined in N-Heptane as part of their engineering specification. N-Heptane is a pure
chemical and does not have the same viscosity and density as standard petrol. Hence the N-Heptane flow rate figures stated
should be used as a general guide for comparison purposes only.
• For safety reasons, Bosch strongly recommends that Local and/or Federal Government health and safety regulations are adhered
to when using or handling any of the mentioned test fluids.
• Stated “Operating Pressure” is the pressure that the fuel injector is designed to operate at to give optimal fuel atomisation and
control. This is more critical to the EV1 pintle type fuel injectors.
• Whilst it is common industry practice to request static flow rate only of a fuel injector, it is important to note that one type of
valve group with a specific static flow rate can be used for a number of fuel injectors with different dynamic flow rates.
Bosch Does Not Warrant the Performance of its Components when they are Used with Certain Fuels or Fuel Additives.
• Bosch fuel injectors are designed for use with standard grade petrol. Subject to statutory warranties, Bosch does not warrant
the performance characteristics or specifications of these fuel injectors if they are used with Alcohol or Ethanol based fuels or
fuel additives that are corrosive.
• Fuel Injector 0 280 150 842 is designed for CNG operation only. Bosch has not tested this fuel injector for permanent service
using liquid fuels, therefore it is not recommended for liquid fuel control systems. Control issues may result due to internal valve
group sensitivity to viscosity differences between liquid and gaseous fuels.
Bosch Is Not Liable For Third Party Recommendations or Modifications
• Modification of fuel management systems should only be carried out by suitably qualified personnel. It is the responsibility of the
purchaser/consumer to ensure the product is compatible with the fuel management system used to avoid damage and/or injury.
• In any event, subject to statutory warranties, Bosch is not liable for damage caused by third party recommendations or
modifications.
• Modification of fuel management systems may cause a vehicle to contravene state or federal emission laws. Bosch does not
endorse or recommend the modification of standard vehicles and does not accept liability for damages or consequential loss
related to any modification undertaken.
Purpose and Function.
Fuel injectors perform an important role in the accurate metering and
atomisation of fuel. These electro-mechanical valves react in milli-seconds
to open and close giving the electronic control unit optimal control
over fuel flow to the engine.
Method of Measurement.
Fuel flow specifications are given in grams per minute, as this is an internationally
accepted standard at vehicle manufacturing level. As vehicle
development engineers deal with the weight or mass of air inducted by an
engine not its expected power rating, the weight of fuel that an injector can
provide is the pivotal measurement. Bosch does not rate fuel injectors
related to expected engine power outcomes for this reason.
Power Ratings of Fuel Injectors.
It has become an aftermarket performance industry practice to rate fuel
injectors in relation to expected engine power outputs, mainly
Horsepower.
As this method of measurement has many issues in relation to various calculation
methods, accuracy, individual interpretation and overall relevance,
Bosch as an Original Equipment supplier of fuel injectors, does not subscribe
to this specification method.
[attachment=16844]
IMPORTANT INFORMATION ABOUT FUEL INJECTORS
Important Information About Technical Specifications
• Bosch fuel injectors have their flow rates defined in N-Heptane as part of their engineering specification. N-Heptane is a pure
chemical and does not have the same viscosity and density as standard petrol. Hence the N-Heptane flow rate figures stated
should be used as a general guide for comparison purposes only.
• For safety reasons, Bosch strongly recommends that Local and/or Federal Government health and safety regulations are adhered
to when using or handling any of the mentioned test fluids.
• Stated “Operating Pressure” is the pressure that the fuel injector is designed to operate at to give optimal fuel atomisation and
control. This is more critical to the EV1 pintle type fuel injectors.
• Whilst it is common industry practice to request static flow rate only of a fuel injector, it is important to note that one type of
valve group with a specific static flow rate can be used for a number of fuel injectors with different dynamic flow rates.
Bosch Does Not Warrant the Performance of its Components when they are Used with Certain Fuels or Fuel Additives.
• Bosch fuel injectors are designed for use with standard grade petrol. Subject to statutory warranties, Bosch does not warrant
the performance characteristics or specifications of these fuel injectors if they are used with Alcohol or Ethanol based fuels or
fuel additives that are corrosive.
• Fuel Injector 0 280 150 842 is designed for CNG operation only. Bosch has not tested this fuel injector for permanent service
using liquid fuels, therefore it is not recommended for liquid fuel control systems. Control issues may result due to internal valve
group sensitivity to viscosity differences between liquid and gaseous fuels.
Bosch Is Not Liable For Third Party Recommendations or Modifications
• Modification of fuel management systems should only be carried out by suitably qualified personnel. It is the responsibility of the
purchaser/consumer to ensure the product is compatible with the fuel management system used to avoid damage and/or injury.
• In any event, subject to statutory warranties, Bosch is not liable for damage caused by third party recommendations or
modifications.
• Modification of fuel management systems may cause a vehicle to contravene state or federal emission laws. Bosch does not
endorse or recommend the modification of standard vehicles and does not accept liability for damages or consequential loss
related to any modification undertaken.
Purpose and Function.
Fuel injectors perform an important role in the accurate metering and
atomisation of fuel. These electro-mechanical valves react in milli-seconds
to open and close giving the electronic control unit optimal control
over fuel flow to the engine.
Method of Measurement.
Fuel flow specifications are given in grams per minute, as this is an internationally
accepted standard at vehicle manufacturing level. As vehicle
development engineers deal with the weight or mass of air inducted by an
engine not its expected power rating, the weight of fuel that an injector can
provide is the pivotal measurement. Bosch does not rate fuel injectors
related to expected engine power outcomes for this reason.
Power Ratings of Fuel Injectors.
It has become an aftermarket performance industry practice to rate fuel
injectors in relation to expected engine power outputs, mainly
Horsepower.
As this method of measurement has many issues in relation to various calculation
methods, accuracy, individual interpretation and overall relevance,
Bosch as an Original Equipment supplier of fuel injectors, does not subscribe
to this specification method.