Cummins Engineering Engine QSB Series
Model: QSB5.9-C QSB6.7-C etc.
Cummins 6-cylinder (QSB5.9 & 6.7 series) construction machinery engine.
Cummins QSB 5.9 & 6.7 engine uses one of the most successful engine block designs in the world. The
6-cylinder model can choose 12-valve or 24-valve configuration. The QSB engine has the appropriate
size, horsepower and torque, and is suitable for all kinds of small agricultural equipment to large
mining machinery.
The new high-strength cylinder design and the power output of the rear gear chamber have significant
noise reduction effect, improved displacement, better reliability, low noise and longer service
life.
The main technical performance:
Excellent reliability
The five key engine systems are developed and optimized for Cummins to ensure engine reliability.
Fuel economy
High pressure common rail fuel system (HPCR), fuel injection pressure up to 1600bar, rapid throttle
response at different speeds, more efficient power output, better fuel economy, and lower noise.
Intelligent electronic control
Mature intelligent electronic control technology improves the overall performance of the engine. The
engine specifications can be tailored according to application requirements, and the self-diagnosis and
self-protection capabilities are stronger.
Fuel System
The three-stage fuel filter ensures a balanced level of particle dispersion, protects the main
components of the fuel system, and maximizes the life of the engine.
Intake and exhaust system
Adopting exhaust gas bypass turbocharger, the supercharging is smoother at low speed, and the power
output is more stable at high speed.
Remote monitoring function
The electronic control system can intelligently switch the working mode according to the environment and
operating conditions, and has the functions of self-diagnosis, alarm and remote monitoring.
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