Valve actuation system for a suction valve of a gas compressor for refrigeration equipment

System for actuation in an admission valve (5) of a gas compressor (1), the gas compressor (1) comprising at least:

• one set formed by a cylinder (2) and a piston (3);
• one electric motor (4) operatively associated with said set, the electric motor (4) being capable of providing an axial movement of the piston (3) to compress the gas inside the cylinder (2), the admission valve (5) being configured to allow the input of gas inside the cylinder (2) upon the axial movement of the piston (3) in a first axial direction;
• one discharge valve (6) configured to allow the output of gas from inside the cylinder (2) upon the axial movement of the piston (3) in a second axial direction opposite to the first axial direction,
• one actuator element (7) operatively associated with the admission valve (5),
• the system comprising at least:
• one first main movable element (8, 24, 38) operatively associated with a rotor (25) of the electric motor (4), and
• one second main movable element (9, 26, 39) operatively associated with the first main movable element (8, 24, 38) and with the actuator element (7),
• the first main movable element (8, 24, 38) and the second main movable element (9, 26, 39) being configured to interact to each other to keep the admission valve (5) open when the electric motor (4) stops and starts-up and further to allow opening and closing of the admission valve (5) upon the regime of work of the electric motor (4).

System for actuation in an admission valve (5) of a gas compressor (1), the gas compressor (1) comprising at least:

• one set formed by a cylinder (2) and a piston (3);
• one electric motor (4) operatively associated with said set, the electric motor (4) being capable of providing an axial movement of the piston (3) to compress the gas inside the cylinder (2), the admission valve (5) being configured to allow the input of gas inside the cylinder (2) upon the axial movement of the piston (3) in a first axial direction;
• one discharge valve (6) configured to allow the output of gas from inside the cylinder (2) upon the axial movement of the piston (3) in a second axial direction opposite to the first axial direction,
• one actuator element (7) operatively associated with the admission valve (5), the actuator element (7) being capable of keeping the admission valve (5) open when the electric motor (4) stops and starts-up, the actuator element (7) being further capable of allowing opening and closing of the admission valve (5) upon the regime of work of the electric motor (4),
• the system comprising at least:
• one elastic element (8) having a first end (43) and a second end (44), the first end (43) of the elastic element (8) being associated with a secondary shaft (21), the secondary shaft (21) being operatively associated with a shaft (33) or rotor (25) of the electric motor (4), the elastic element (8) being capable of decompressing upon the regime of work of the electric motor (4), the elastic element (8) being capable of compressing when the electric motor (4) stops or starts-up;
• one semi-arch element (9) associated with the second end (44) of the elastic element (8), the semi-arch element (9) being capable of angularly moving in a first angular direction upon the decompression of the elastic element (8), the semi-arch element (9) being capable of angularly moving in a second angular direction, opposite to the first angular direction, upon the compression of the elastic element (8);
• one auxiliary element (18) operatively associated with the semi-arch element (9) and with the actuator element (7), the second auxiliary element (18) being capable of axially moving in a first axial direction upon the movement of the semi-arch element (9) in the first angular direction to pull the actuator element (7), and, the auxiliary element (18) being capable of axially moving in a second axial direction, opposite to the first axial direction, upon the movement of the semi-arch element (9) in the second angular direction to push the actuator element (7).

System for actuation in an admission valve (5) of a gas compressor (1), the gas compressor (1) comprising at least:

• one set formed by a cylinder (2) and a piston (3);
• one electric motor (4) operatively associated with said set, the electric motor (4) being capable of providing an axial movement of the piston (3) to compress the gas inside the cylinder (2), the admission valve (5) being configured to allow the input of gas inside the cylinder (2) upon the axial movement of the piston (3) in a first axial direction;
• one discharge valve (6) configured to allow the output of gas from inside the cylinder (2) upon the axial movement of the piston (3) in a second axial direction opposite the first axial direction;
• one actuator element (7) operatively associated with the admission valve (5), the actuator element (7) being capable of keeping the admission valve (5) open when the electric motor (4) stops and starts-up, the actuator element (7) being further capable of allowing opening and closing of the admission valve (5) upon the regime of work of the electric motor (4),
• the system comprising at least:
• one first magnetic element for dragging (24) operatively associated with a rotor (25) of the electric motor (4), the first magnetic element for dragging (24) being capable of axially moving in a first axial direction upon the regime of work of the electric motor (4), and, the first magnetic element for dragging (24) being capable of axially moving in a second axial direction, opposite to the first axial direction, upon the stop of the rotor (25) of the electric motor (4);
• and
• one movable arm (26) operatively associated with the first magnetic element for dragging (24) and with the actuator element (7), the movable arm (26) being capable of angularly moving in a first angular direction upon the displacement of the first magnetic element for dragging (24) in the first axial direction to pull the actuator element (7), and, the movable arm (26) being capable of angularly moving in a second angular direction, opposite to the first angular direction, upon the displacement of the first magnetic element for dragging (24) in the second axial direction to push the actuator element (7).

System for actuation in an admission valve (5) of a gas compressor (1), the gas compressor (1) comprising at least:

• one set formed by a cylinder (2) and a piston (3);
• one electric motor (4) operatively associated with said set, the electric motor (4) being capable of providing an axial movement of the piston (3) to compress the gas inside the cylinder (2), the admission valve (5) being configured to allow the input of gas inside the cylinder (2) upon the axial movement of the piston (3) in a first axial direction;
• one discharge valve (6) configured to allow the output of gas from inside the cylinder (2) upon the axial movement of the piston (3) in a second axial direction opposite to the first axial direction,
• one actuator element (7) operatively associated with the admission valve (5), the actuator element (7) being capable of keeping the admission valve (5) open when the electric motor (4) stops and starts-up, the actuator element (7) being further capable of allowing opening and closing of the admission valve (5) upon the regime of work of the electric motor (4),
• the system comprising at least:
• one second magnetic element for dragging (38) operatively associated with a second element of electric drive (47) and with a rotor (25) of the electric motor (4), the second magnetic element for dragging (38) being capable of axially moving in a first direction upon the regime of work of the electric motor (4) to activate the second element of electric drive (47), and, the second magnetic element for dragging (38) being capable of axially moving in a second direction opposite to the first axial direction, upon the stop of the rotor (25) of the electric motor (4) to deactivate the second element of electric drive (47);
• and
• one second electro-mechanical element (39) operatively associated with the second element of electric drive (47) and with the actuator element (7), the second electro-mechanical element (39) being capable of axially moving in a first axial direction, upon the activation of the second element of electric drive (47), to pull the actuator element (7), the second electro-mechanical element (39) being capable of axially moving in a second axial direction opposite to the first axial direction, upon the deactivation of the second element of electric drive (47), to push the actuator element (7).