Stationary diesel systems
Stationary diesel engines usually are running continuously at a constant load, e.g. as a generator. Bosch offers injection systems, engine control as well as complete exhaust-gas systems for stationary diesel engines.
Electronic Diesel Control (EDC) regulates the functions of the injection system in such a way that the engine provides the demanded engine torque. The injection parameters are constantly matched to the engine and the driving situation. Engines with an electronically controlled diesel system from Bosch combine maximum dynamic performance with minimum fuel consumption and emissions.
- Cleaner and economical engine operation thanks to the rapid adaptation of all injection parameters
Common Rail System
Common Rail Systems are the state-of-the-art diesel technology. Commercial-vehicle systems have solenoid injectors for high system efficiency. Pressure is generated by CP or single-cylinder pumps. With maximum system pressure between 1,600 bar and 2,500 bar the systems can achieve stringent emission targets.
The pressurized fuel is stored in a high-pressure rail from where it is directly fed to the fuel injectors. Start and shape of each injection are defined by the opening and closing of the nozzle needle in the injector.
The rail pressure can be controlled using a pressure-limiting or pressure-control valve. The injection quantity can be corrected throughout the system lifetime through the aid of software learning functions.
- Increases fuel efficiency and subsequently reduces CO2 output
- Contributes towards achieving Euro V/VI, US 10, Tier 4, JPNLT
- High torque and efficiency at low engine speeds
- Easy integration into existing and future engine platforms
- System variants for worldwide application
Modular Common Rail System
Bosch offers the first fully modular Common Rail Systems for operation in large off-highway diesel engines. Instead of the high-pressure rail these systems feature specific fuel-storage volumes in the high-pressure pump and the injectors.
High pressure is generated by single-cylinder pumps or inline pumps. The number of pump cylinders always corresponds to that of the diesel engine. The pumps comprise an integrated high-pressure accumulator, pressure sensor and pressure safety valve.
The high-pressure injectors are each equipped with their own high-pressure accumulator, safety flow limiter and solenoid valve for multiple injection. Because the injectors are connected with one another using short high-pressure lines, modular Common Rail Systems are particularly versatile.
- High injection pressure independent of engine speed
- Lower operating noise
- Reduced fuel consumption
- Adherence to stricter emission limits
- Adaptation to exhaust-gas treatment possible
- Long lifetime
The ZWM pump is a mechanically controlled in-line pump with up to 1,200 bar at the nozzle. For each pressure line there is one pump element. With a constant plunger stroke, the injected quantity can be adjusted continuously by twisting the plunger. The nozzle-holder assembly can be selected depending on supply quantity, spray shape and injection pressure.
- Established system
- Injection quantity can be varied quickly, continuously and easily
- Highly robust, therefore suitable for many applications