Automatic Valve Plate Design based on optimized Pressure Profile

摘要

The instantaneous cylinder pressure in axial piston machines effects strongly the resulting flow and pressure pulsation on both machine ports as well as resulting oscillating forces exerted on machine parts. A very common method is to manipulate the valve plate openings to obtain a certain pressure profile in the displacement chamber with desired pressure gradients and avoiding large pressure peaks. This paper presents a new computer based design method for automatic valve plate design using the simulation program CASPAR together with the extension tools AVAS and SUEZ. The recently developed program SUEZ allows an automatic design of valve plate openings by reading a corresponding opening area file. SUEZ is based on the 3D CAD System Unigraphics. The applied methods of the program SUEZ will be explained in this paper.