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For the development of the expansion engine, starting with an initial approach for a functional prototype, experimental investigations are carried out. Motored tests are performed in order to scrutinize kinematics and mechanics. Tests with pressurized air for enhanced load on the components - without applying the corrosion and thermal stress of hot steam - are assessed. The structural problems at the piston mount during the test runs reveal improvement potential and lead to its highly effective redesign. The occurring leakage at the rotational and piston seals and the high friction demand for improvements in further investigations.
This paper treats the design and layout of the novel expansion engine concept, the special challenges of test bench investigations, especially concerning measurement equipment and test bench requirements, and shows the most important findings and insights gained during the experimental investigations of the engine, as well as possibilities for improvement.
|Titel||SAE/JSAE Small Engine Technology Conference|
|Herausgeber (Verlag)||SAE International|
|Publikationsstatus||Veröffentlicht - 21 Nov 2019|
Aktivität: Vortrag oder Präsentation › Vortrag bei Konferenz oder Fachtagung › Science to science