Patent ID: 8375842
Filing Date: 2013-02-19
Classification: F15B

Abstract:
1. An electro-pneumatic system for controlling a double-acting pneumatic actuator having a first pneumatic working chamber and a second pneumatic working chamber controllable independently from the first working chamber, comprising: first and second preliminary pneumatic control components for generating first and second preliminary pneumatic control signals transferred to respective first and second main pneumatic control components having respective pneumatic outputs for connection to said respective first and second working chambers; and an electronic splitter circuit preceding said first and second preliminary pneumatic control components for splitting and inverting an electrical control signal input to said splitter circuit around an electrical mean control value to create first and second mirror-inverted electrical control signals respectively connected to said respective first and second preliminary pneumatic control components, and the electrical mean control value being adjustable such that said first and second preliminary control components respectively generate said respective first and second preliminary pneumatic control signals mutually inverted around a pneumatic mean value.