ENERGY RECOVERY APPARATUS AND METHOD

• Main Authors: BEAUCHAMP, PHILIP, PAUL, LAZATIN, PATRICK, JOSE, ERNO, JEFFREY, DAVID, SCHOEPKE, ERIK, JOHN, ERNO, DANIEL, JASON
• Format: Patent
• Language: English; French; German
• Published: 21.10.2009
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PRODUCING MECHANICAL POWER; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SPRING, WEIGHT, INERTIA OR LIKE MOTORS; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

An activatable pump is provided. The pump includes a piston in slideable communication with an inner surface of a cylinder, which has a first end and a second end. A first control valve and a second control valve are in physical communication with the first end of the cylinder. The first control valve and the second control valve are in fluid communication with the piston. Either the first control valve or the second control valve is not a check valve. A first check valve and a second check valve are in physical communication with the second end of the cylinder. The first check valve and the second check valve are in fluid communication with the piston. A pressure controller communicates with the piston to control an amount of force by or on the piston. A method and an energy recovery apparatus are also provided.