The first fluid and equilibrium it can point pressure of the second fluid usage of the passive device and the said passive device which

摘要

In order the first valve and the second valve (35a and 35b) it possesses the balancer device of this invention, for each valve to have, the chamber (13a and 13b) the introduction orifice (19a and 19b) through, the first fluid or to be able to communicate the said chamber, to the circuit which keeps the second fluid, at the same time, the discharge orifice (18a and 18b) through, the first fluid or to be able to communicate to the discharge expedient of the second fluid, the discharge orifice (18a and 18b) to be able to move with closed position and opening position at least one which is installed inside the chamber of the valve check valve (20a20b) with, the piston which is connected to the said check valve (22a, 24a, 22b and 24b) with, the elastic resetting expedient which resets the check valve to closed position (32a and 32b) with furthermore it possesses.