Abstract: Interlaced tubing elements form a spiral shaped heat exchange element. The tubing elements are tilted while being helically wound, forming a substantially overall cylinder or cone spiral structure having a central longitudinal axis. Tubing elements are tilted with respect to the central longitudinal axis, and may be continuously tilted or variably tilted. A heat exchange element is formed by a continuous tubing element that spirals around a central longitudinal axis, or by several interlaced tubing elements that are spaced adjacent to each other in a conic spiral shape. The tubing elements may have a plurality of fins on at least one of the outer surfaces or first and/or second side walls.

Abstract: Heat exchanger (100) has one or several substantially flat and rigid elongated tubing elements (10), whereby the tubing elements (10) tilted while being helically wound, forming a substantially overall cylindrical structure having a central longitudinal axis (X). Tubing elements (10) are tilted spirally curved around the central longitudinal axis (X). Several elements are interleaved in a structure. The tubing elements (10) have a plurality of fins (60) on at least one of the outer surfaces (42, 52) of first (40) and/or second (50) side wall. Fins (60) are at least partially covered by a covering wall (70, 80). The tubing elements (10) are at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, an overall cylindrical structure and/or a cylindrical shape.

Abstract: A tubing element for a heat exchanger is at least partially a rigid elongated tubing having a first end, a second end, a first side wall and a second side wall. First and second side walls are substantially parallel to each other. The distance between first side wall and second side wall is considerably smaller than the width of first side wall and second side wall, resulting in a substantially overall flat tubing structure with connection walls on both sides. The tubing element has a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall. Fins define an angle enclosed by the fins and a connection wall. A heat exchanger, use of a tubing element, use of a heat exchanger and method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are included.

Abstract: In a new flexible-monoblock refrigeration configuration arrangement, all of the refrigeration components are gathered within its one and only flexible chassis platform. These units are one piece, meaning that their condenser, refrigerant control assemblies, compressor and the evaporator are fixed to their one and only integrated flexible chassis. No refrigeration components are outside its enclosure. There is no need to perform any assembling or service to the refrigeration itself at the time of installation. The new flexible monoblock refrigeration system can be configured in many different forms using parallel rigidly interconnected side plates. The sub platforms are rigidly connected to the side plates so that all of the weight, forces and stress are borne by the side plates and none is transferred among the refrigeration elements, units or subassemblies.

Abstract: Refrigerant is controlled by primary and secondary metering by main control valves with connections to individual one pass heat transfer circuits. The connections from the main valve radially extend from the valve body. Needles contact upper edges of sloped seats in valve bodies. The needles have sloped conical surfaces which seal the valves and cylindrical bases which seal orifices leading to radially extending individual circuit connectors. Moving the needle opens the valve, metering flow between the cone and the seat and opening and metering flow to partially opened orifices. The needle shape directs the flow through the orifices which are narrow for fluids and wide for vapors. An internal channel in the valve body is opened when the needle is moved to equalize pressure on the needle and the base.

Abstract: A refrigerant valve has a body with a through bore. Multiple tubes have openings aligned in a ring around a middle of the bore. The tubes lead to larger channels in the body. A needle assembly inserted through an end of the bore reciprocates a needle with a stepper motor and speed reducer to precisely control sizes of the openings. Further advancing the needle shaft after closing the openings to the tubes, engages and slides a bypass sleeve against a return spring force to open a bypass in a side of the valve body. A connector connects the bypass in a first end of the bore to outward opening holes of the channels.

Abstract: A refrigeration system has a refrigeration control assembly and separate compressor-driver, condenser and evaporator assemblies connected by refrigerant lines to the refrigeration control assembly. The assemblies are relocatable with respect to each other in parallely, longitudinally or angularly related portions. The refrigeration control assembly has multiple ports with quick disconnect sealing joints to the refrigerant lines. The refrigeration control assembly is equipped to connect supplemental compressor, condenser and evaporator assemblies and independent condenser and evaporator units. The refrigerant control valves with the possible exception of expansion and pressure control valves at an evaporator are in the refrigerant control assembly, which also holds the liquid filter, the liquid accumulator, the suction accumulator and the oil separator.

Abstract: Self-contained refrigeration units include evaporator modules, condenser modules, compressor modules, control subassemblies, and all other refrigeration components in compact interconnected modular packages. The modules, which are assembled in rigid or flexible self-contained monoblock refrigeration units, are installable, removable and replaceable as complete self-contained refrigeration units without requiring transport downtime for servicing and repairing of the refrigeration units. Vehicles with refrigeration systems arrive at a distributor and have malfunctioning units removed and complete units replaced and installed and are back on the road within minutes. Dealers' inventories are small and non complex and dealers' workers need not be skilled transport refrigeration mechanics. Dealer trucks have light cranes to remove and replace complete self-contained refrigeration units on site.

Abstract: A tubing element used for a heat exchanger is a rigid elongated heat exchanger tubing having at least a first end, a second end, a first side wall and a second side wall. The first side wall and the second side wall are arranged substantially parallel to each other. The distance between the first side wall and the second side wall is considerably smaller than the width of the first and second side walls, resulting in a substantially overall flat tubing structure. The tubing element being at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted to form at least a part of a helical structure. A heat exchanger, the use of a tubing element, the use of a heat exchanger and the method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are described.

Abstract: Heat exchanger (100) has one or several substantially flat and rigid elongated tubing elements (10), whereby the tubing elements (10) tilted while being helically wound, forming a substantially overall cylindrical structure having a central longitudinal axis (X). Tubing elements (10) are tilted spirally curved around the central longitudinal axis (X). Several elements are interleaved in a structure. The tubing elements (10) have a plurality of fins (60) on at least one of the outer surfaces (42, 52) of first (40) and/or second (50) side wall. Fins (60) are at least partially covered by a covering wall (70, 80). The tubing elements (10) are at least partially tilted or at least partially tilted and sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, an overall cylindrical structure and/or a cylindrical shape.

Abstract: A tubing element for a heat exchanger is at least partially a rigid elongated tubing having a first end, a second end, a first side wall and a second side wall. First and second side walls are substantially parallel to each other. The distance between first side wall and second side wall is considerably smaller than the width of first side wall and second side wall, resulting in a substantially overall flat tubing structure with connection walls on both sides. The tubing element has a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall. Fins define an angle enclosed by the fins and a connection wall. A heat exchanger, use of a tubing element, use of a heat exchanger and method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are included.

Abstract: A refrigerant valve has a body with a through bore. Multiple tubes have openings aligned in a ring around a middle of the bore. The tubes lead to larger channels in the body. A needle assembly inserted through an end of the bore reciprocates a needle with a stepper motor and speed reducer to precisely control sizes of the openings. Further advancing the needle shaft after closing the openings to the tubes, engages and slides a bypass sleeve against a return spring force to open a bypass in a side of the valve body. A connector connects the bypass in a first end of the bore to outward opening holes of the channels.

Abstract: Self-contained refrigeration units include evaporator modules, condenser modules, compressor modules, control subassemblies, and all other refrigeration components in compact interconnected modular packages. The modules, which are assembled in rigid or flexible self-contained monoblock refrigeration units, are installable, removable and replaceable as complete self-contained refrigeration units without requiring transport downtime for servicing and repairing of the refrigeration units. Vehicles with refrigeration systems arrive at a distributor and have malfunctioning units removed and complete units replaced and installed and are back on the road within minutes. Dealers' inventories are small and non complex and dealers' workers need not be skilled transport refrigeration mechanics. Dealer trucks have light cranes to remove and replace complete self-contained refrigeration units on site.

Abstract: Self-contained refrigeration units include evaporator modules, condenser modules, compressor modules, control subassemblies, and all other refrigeration components in compact interconnected modular packages. The modules, which are assembled in rigid or flexible self-contained monoblock refrigeration units, are installable, removable and replaceable as complete self-contained refrigeration units without requiring transport downtime for servicing and repairing of the refrigeration units. Vehicles with refrigeration systems arrive at a distributor and have malfunctioning units removed and complete units replaced and installed and are back on the road within minutes. Dealers' inventories are small and non complex and dealers' workers need not be skilled transport refrigeration mechanics. Dealer trucks have light cranes to remove and replace complete self-contained refrigeration units on site.

Abstract: Self-contained refrigeration units include evaporator modules, condenser modules, compressor modules, control subassemblies, and all other refrigeration components in compact interconnected modular packages. The modules, which are assembled in rigid or flexible self-contained monoblock refrigeration units, are installable, removable and replaceable as complete self-contained refrigeration units without requiring transport downtime for servicing and repairing of the refrigeration units. Vehicles with refrigeration systems arrive at a distributor and have malfunctioning units removed and complete units replaced and installed and are back on the road within minutes. Dealers' inventories are small and non complex and dealers' workers need not be skilled transport refrigeration mechanics. Dealer trucks have light cranes to remove and replace complete self-contained refrigeration units on site.