Hydropneumatic linear position controller

• Grant number: 04/02463-9
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: January 01, 2005
• End date: October 31, 2006
• Field of knowledge: Engineering - Mechanical Engineering - Mechanical Engineering Design
• Principal Investigator: Sidney Nogueira Pereira de Jesus
• Grantee: Sidney Nogueira Pereira de Jesus
• Company: Hydrex Comercial Hidraúlica Ltda
• City: Santo André

Abstract

The aim of this project is to develop a hydropneumatic linear position controller. The system is compact and contains in the same block a hydraulic actuating piston, two pneumatic control actuators controlled by two pneumatic valves of the on-off type, an electronic control system and a sensor to monitor the misalignment of the actuator and to generate a signal to shut off the control network. The idea is innovative and seeks to fill a need in the market for precision linear positioning for small alignments and heavy weights, such as the positioning of cylinders in the lamination, paper and cellulose and plastic films industries and valve opening control in the petrochemical and food industries, among others. The alternatives currently used are based on conventional servo-hydraulic systems, costly to acquire, install and operate. The device proposed in this project should be a very much simpler alternative, cheap, easy to install and operate. The system is compact and uses as its power source the conventional pneumatic line normally available in industrial plants. The design for the platform is in progress and, in the course of the first phase, it is intended to build the device and carry out several experimental tests for a detailed analysis of its technical viability. (AU)