【作者】

Philipp Tritschler

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC世界大会上发表，论文的版权归CIMAC所有。 HEINZMANN is providing a family of completely new designed heavy duty actuators for 3 Nm, 15 Nm and 30 Nm peak torque. These robust, gearless and direct-drive actuators are available as stand-alone actuators or combined with integrated throttle bodies. Both types can be supplied with or without integrated electronics. Motivations for this development are as follows: From 2015 on all industrial combustion engines have to comply with emission stage TIER 4 final. NOx + HC + PM emissions have to be limited to 3.5 + 0.19 + 0.04 g/kWh respectively. To reduce the effort of exhaust gas after treatment, the raw emission of the engine has to be minimized. Factors of success are high pressure fuel injection and sophisticated air path management of one or two stage turbo charging systems. In parallel the space available for these components gets smaller and smaller. As a consequence, all these components are exposed to a significantly increased temperature level. Typical applications of these actuators are: 1. Exhaust gas recycling valves 2. Compressor bypass valves 3. Turbine bypass valves 4. Intake throttle valves 5. Exhaust throttle valves 6. Variable turbine geometry 7. Gas-mixture valves Usually these actuator systems are regarded as an integral part of the heavy duty engine. This consequently leads to very sophisticated specifications: -Vibration range: 20g RMS / 20-2.000 Hz -Operation temperature range:-40°C / +150°C -Slewing time (10% - 90%) ca. 50 ms -Ingress protection grade: IP6k9k -Endurance: > 40.000 h Most demanding challenges for the development of these products are to find solutions in a manifold area of conflict, for example performance versus cost, endurance versus temperature range, commonality of solutions versus a broad range of variants and applications. A very special challenge is to develop an integrated electronic system that fulfils the advanced requirements regarding low cost, high temperature range, long lifespan in an extreme environment.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

3

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