Patent ID: 6145311
Filing Date: 2000-11-14
Classification: F15B,F28F

Abstract:
Pneumo-hydraulic converter for the conversion of at least one of pneumatic power into hydraulic power and hydraulic power into pneumatic power, includinga reciprocating piston,a gas working chamber which is partially defined by the piston and in which is provided a gaseous working medium,an oil working chamber which is partially defined by said piston and in which is provided a liquid working medium,an air storage tank connected to the gas working chamber by means of valves, and the oil working chamber connected to a hydraulic circuit, a rod connected to said piston, anda tubular heat exchanger which passes through the piston and is connected to an exterior cooling circuit which is designed to maintain the temperature of the gaseous working medium in the gas working chamber at an essentially constant level, said tubular heat exchanger including at least a portion extending outside of said rod.