LP11.5
Common rail high pressure pump
The LP11.5 common-rail high-pressure pump is designed for use in large diesel engines, including applications in mining, power generation, marine and rail. The oil-lubricated design supports reliable operation and, depending on the system design and operating conditions, can contribute to a long service life. A small difference between mean and peak torque can support the design of the gear train and help reduce noise emissions. The LP11.5 high-pressure pump meets DNV certification standards for marine applications.
System pressure - 100 - 2,200 bar
100 - 2,200 bar
Flow rate - 810 l/h
810 l/h
Max. speed - 5,000 rpm
5,000 rpm
Lubrication - oil
oil
Service life off-highway - 15,000 h
15,000 h
Highlights
Technical data
| System pressure | 100 - 2,200 bar |
| Flow rate | 810 l/h |
| Rated speed | 4,500 rpm |
| Max. speed | 5,000 rpm |
| Drive concept | Eccentric roller |
| Number of plungers | 5 |
| Lubrication | oil |
| Weight | 55 kg |
| Service life off-highway | 15,000 h |
| Oil in fuel | <0.02 g/kWh |
| PCV | electrically controlled with mechanical overpressure safety |
| VCV | volume control valve currentless open |
| Feed pump | Mechanical (G-rotor) |
| Mean torque at max. system pressure and max. flow rate | 135 Nm |
| Ambient temperature | -30 to 125 °C |
| Vibration specification | ISO 10816-6 / VDI 3838 |
| Filtration specification | min. 99.2% efficiency @ 4 µm (ISO 19438) - along service life |
| Fuel specification | Purity class 12/9/6 (ISO 4406) |
Discover now
Learn more about our production site for injectors, high pressure pumps, and injection solutions for diesel and alternative fuels in Deggendorf, Germany.
In addition to individual components and system solutions, Liebherr also offers comprehensive customer service to ensure the performance of our components throughout their entire lifecycle.
Decades of experience in the development and manufacture of diesel engines result in self-manufactured components and common rail solutions used in heavy-duty and large engines.