Liquefaction promoting apparatus having vibrable and oscillable spring

A method for promoting liquefaction of a fluid by stirring and uniformly mixing said fluid in a liquefaction promoting apparatus operating in a cooling mode of operation or in a heating mode of operation, the method comprising:

• configuring a liquefaction promoting apparatus having:
• a cylindrical housing having a central axis, a body part having an inner diameter and an upper end and a lower end, and an upper and a lower dome-shaped end plates, each of the upper and lower dome-shaped end plates sealing a respective one of the upper and the lower ends of said body part,
• an upper tube having one end connected to the pipeline and another end penetrating said upper dome-shaped end plate at a spaced apart position from the central axis of the cylindrical housing and extending to the periphery of the upper end of said body part, allowing the fluid to flow therethrough,
• a lower tube having one end connectable to the pipeline and another end penetrating said lower dome-shaped end plate at the central axis of said cylindrical housing and extending to the periphery of the upper end of said body part, allowing the fluid to flow therethrough,
• a large coil spring extending internally and longitudinally along said body part, said large coil spring having a first end and a second end affixed to said body part, and a middle part connecting said first and second ends, said large coil spring having an outer diameter of 1 to 10 mm smaller than the inner diameter of said body part, the middle part being unfixed to said body part to vibrate and oscillate, and
• at least one small coil spring accommodated in said body part in a surrounding relationship with said lower tube, said at least one small coil spring having its upper end fixed on said one end of said lower tube and its lower end extending to the periphery of said lower dome-shaped end plate,
• wherein the middle part of said large coil spring and said at least one small coil spring vibrate and oscillate when actuated by kinetic energy of the fluid flowing in the cylindrical housing, thereby stirring the fluid, and wherein said at least one small coil spring vibrates and oscillates without colliding with said large coil spring;
• in said cooling mode of operation, entering the fluid containing refrigerant and refrigerator oil through said upper tube from a condenser, or an outdoor unit disposed on the pipeline;
• stirring and uniformly mixing the fluid by the action of vibration and oscillation of said large coil spring and said at least one small coil spring;
• and
• expelling the fluid through said lower tube.

A liquefaction promoting apparatus to be disposed on a pipeline of a heat pump system for the purpose of stirring and uniformly mixing fluid containing refrigerant and refrigerator oil circulating therein comprising:

• a cylindrical housing having a central axis, a body part having an inner diameter and an upper end and a lower end, and an upper and a lower dome-shaped end plates, each of the upper and lower dome-shaped end plates sealing a respective one of the upper and the lower ends of said body part;
• an upper tube having one end connectable to the pipeline and another end penetrating said upper dome-shaped end plate at a spaced apart position from the central axis of the cylindrical housing and extending to the periphery of the upper end of said body part, allowing the fluid to flow therethrough;
• a lower tube having one end connectable to the pipeline and another end penetrating said lower dome-shaped end plate at the central axis of said cylindrical housing and extending to the periphery of the upper end of said body part, allowing the fluid to flow therethrough;
• a large coil spring extending internally and longitudinally along said body part, said large coil spring having a first end and a second end affixed to said body part, and a middle part connecting said first and second ends, said large coil spring having an outer diameter of 1 to 10 mm smaller than the inner diameter of said body part, the middle part being unfixed to said body part to vibrate and oscillate;
• and
• at least one small coil spring accommodated in said body part in a surrounding relationship with said lower tube, said at least one small coil spring having its upper end fixed on said one end of said lower tube and its lower end extending to the periphery of said lower dome-shaped end plate;
• wherein the middle part of said large coil spring and said at least one small coil spring vibrate and oscillate without colliding with one with another when actuated by kinetic energy of the fluid flowing in the cylindrical housing, thereby stirring the fluid.