초록 ▼

A device for controlling the circulation of a fluid through a fluid bypass (3) consists of an actuator (14) which is actuated pneumatically and directly by the fluid located in the bypass so as to close, at least partially, bypass outlet (3c) when the pressure of the fluid in the bypass is higher th

A device for controlling the circulation of a fluid through a fluid bypass (3) consists of an actuator (14) which is actuated pneumatically and directly by the fluid located in the bypass so as to close, at least partially, bypass outlet (3c) when the pressure of the fluid in the bypass is higher than a predetermined pressure threshold (PO).

대표청구항 ▼

Device for control of the circulation of a fluid through a fluid bypass having an exterior casing delimiting an interior chamber for fluid flow, a fluid inlet, a main fluid outlet and a secondary fluid bypass outlet, said device comprising: a blocking flap pivotally mounted in the interior chamber o

Device for control of the circulation of a fluid through a fluid bypass having an exterior casing delimiting an interior chamber for fluid flow, a fluid inlet, a main fluid outlet and a secondary fluid bypass outlet, said device comprising: a blocking flap pivotally mounted in the interior chamber of the bypass for movement between a position that closes the main outlet and a position that closes the bypass outlet; a pneumatic actuator having a housing, and having a piston rod connected to the blocking flap for moving the blocking flap; a connection duct fluidically connected between the interior chamber of the bypass and the housing of the actuator such that a pressure of a fluid in said interior chamber is applied to said actuator; an elastic return element in said actuator, said elastic return element having a return force selected as a function of a predetermined bypass fluid pressure threshold at which said bypass outlet is to be closed; and a further actuator for moving the blocking flap, said further actuator comprising a thermally responsive element which is responsive to a temperature of the pneumatic fluid in said bypass.