Pump to produce the vacuum of high performance with a piston and a double carrera cylinder (Machine-translation by Google Translate, not legally binding)

摘要

Pump to produce high performance vacuum with a piston and a double stroke cylinder, characterized in that the piston (2) slides through a cylinder (4) with a stock (3) at each end provided with their corresponding intake valves (6) and exhaust (5) and with a housing to move the shaft (8) that threaded said piston. When the inlet valves are connected to the collector (7) a closed circuit is created with the vacuum tank and this gives us a great energy saving to take advantage of the depression that is generated after each aspiration helping in the opposite stroke. this system maintains constant the effort made by the pump from the beginning of the emptying until the end of it. Once the maximum emptying is obtained, the piston moves from one stock to another without any more effort than the one assumed by the weight of the materials and the friction they offer. this principle of taking advantage of the emptying of the tank or circuit as servo-aid to save energy, is applicable to any type of known pumps. (Machine-translation by Google Translate, not legally binding)