Abstract: A method of introducing a leak detection dye into a closed refrigeration system through circulation of the refrigerant. A predetermined amount of the leak detection dye, which is soluble in the refrigerant and the system lubricant, is installed in a component of the refrigeration system, such as in a desiccant bag placed in a dehydrator. The leak detection dye may come in various forms including as a leak detection additive having the leak detection dye implanted on and absorbed into a host swatch of a substrate material, as a powder, as a solid pellet of powdered dye concentrate and inert ingredients, or as a slurry. The refrigeration system is assembled, charged and operated, by which the refrigerant and system lubricant flowing through the component, such as a desiccant bag in the dehydrator, and mixes the dye with the refrigerant and system lubricant.

Abstract: A method of introducing a leak detection additive into a closed refrigeration system by a substrate containing the additive. A predetermined amount of the additive is implanted on and absorbed into a host swatch of substrate material which is capable of absorbing and releasing the leak detection additive, but which does not react with refrigerant or system lubricant. The swatch is installed in a desiccant bag, which is then installed in a dehydrator of the refrigeration system. The refrigeration system is assembled, charged and operated, by which the refrigerant and system lubricant flowing through the desiccant bag mixes the additive with the refrigerant and system lubricant. In alternative embodiments, the substrate is constructed to be used as a filter in various components of the refrigeration system.

Abstract: The invention provides an atomizing mist infuser and a method of using the same. This mist infuser includes a disposable capsule having a sealable inlet and outlet. This capsule defines a reservoir which is in open communication with the capsule's inlet and outlet. The reservoir is designed to hold a predetermined amount of a liquid material to be infused into a closed-loop system. In one embodiment, the capsule's outlet is designed to: (a) substantially prevent the liquid material held in the capsule's reservoir from flowing therethrough when the material is subjected to normal gravitational forces, and (b) atomize the liquid material held in the capsule's reservoir as the liquid material is forced, under pressure, to pass through the capsule's outlet. In another embodiment, the capsule's outlet is constructed to have a flow restriction-atomization device attached thereto.