Impressure test system HIGH IMPRESSION

High-frequency, high-pressure tests up to 4.000 bar using resonance test systems.

The requirements for motor injection systems rise due to the increasing expectations of the customers and developing environmental legislation. Enhancing the injection pressures is a targeting solution to reduce the fuel consumption.

With resonance driven high-pressure test systems it is possible to generate pressures up to 4.000 bar with frequencies up to 60 Hz. Consequently different pressurized components can be tested with respect to their impressure durability within a short period and can be developed efficiently and competitively.

In comparison to usual servo hydraulic driven test systems, which usually operate with 8 Hz up to 12 Hz and at an energy consumption of more than 100 kW, the resonance driven high-pressure test systems are characterized by a much higher test frequency and a much lower energy consumption of max. 4 kW. Using resonance test technology and the high test frequencies involved, it is possible to reduce the test periods up to a factor of 10 and test costs up to a factor of 200. A resonance test machine amortizes completely within the first two years  because of the extremely low energy costs compared to servohydraulic systems.

Beside loading the components with impressure, it is also possible to induce a superposed dynamic excitation using a shaker and a simulation of the surrounding temperature using a conditioning device. The superposed dynamic excitation makes it possible to excite injection cables in their resonance frequency, to temper and to load them with impressure at the same time. An operation related simulation of the environmental conditions can be guaranteed.

Regarding resonance test machines, it is a novelty that not only single step tests but also block programs and even RANTEC tests (service load tests) can be accomplished by the control software EMOTION II.

Typical components are fuel rails, diesel injection cables and common rail components.