Embodiments of an accumulator for charge management are described. A fluid compression system, comprising an accumulator fluidly connected to an evaporator via a spillover port. The spillover port directs working fluid received from the evaporator to be collected and stored in the accumulator, where the stored working fluid is stored and released from the accumulator in response to an operating condition of the evaporator.

Embodiments of an accumulator for charge management are described. A fluid compression system, comprising an accumulator fluidly connected to an evaporator via a spillover port. The spillover port directs working fluid received from the evaporator to be collected and stored in the accumulator, where the stored working fluid is stored and released from the accumulator in response to an operating condition of the evaporator.

A system for measuring and recharging an air conditioning system includes a vent sensor configured to be coupled to an outlet vent of an air conditioning system. The vent sensor is configured to measure at least one parameter of an air flow from the outlet vent. A processor is in signal communication with the vent sensor. The processor is configured to receive the at least one parameter of the air flow and determine a current refrigerant level of the air conditioning system.

A system for measuring and recharging an air conditioning system includes a vent sensor configured to be coupled to an outlet vent of an air conditioning system. The vent sensor is configured to measure at least one parameter of an air flow from the outlet vent. A processor is in signal communication with the vent sensor. The processor is configured to receive the at least one parameter of the air flow and determine a current refrigerant level of the air conditioning system.

A method and an apparatus and a computer program product are provided that can monitor thermal mass or thermal energy sources available at remotely-located equipment using wired or wirelessly connected sensors. The method may include to receiving measurements captured by one or more sensors coupled to the equipment, the measurements including measurements indicating remaining quantities of thermal mass or thermal energy sources available for use by the equipment, monitoring replenishment events in which the thermal mass or thermal energy sources are resupplied, generating a thermal efficiency and usage or characteristic describing thermal efficiency and a cycle of usage of the thermal mass or thermal energy sources based on historical measurements of thermal efficiency and quantities of thermal mass or thermal energy sources consumed and stored by the equipment and a history of replenishment events, and scheduling one or more replenishment events based on the usage characteristic.

An air conditioning recharging machine includes a pair of flexible hoses connected to the air-conditioning system and a recharging assembly to supply a refrigerant fluid to the air-conditioning system through the flexible hoses. The machine has a discharging assembly to discharge the refrigerant fluid from the air-conditioning system and a valve distributor body, which is provided with a series of inlets/outlets hydraulically connected to the flexible hoses, to the recharging assembly and to the discharging assembly. The valve distributor body is in the form of a monobloc made of rigid material which is provided with straight inner through-ducts, each of which extends in the monobloc so as to have the two axial ends which are arranged on two respective faces of said monobloc opposite one to the other, and are each closed by a respective solenoid valve coupled to the face itself.

An air conditioning recharging machine includes a pair of flexible hoses connected to the air-conditioning system and a recharging assembly to supply a refrigerant fluid to the air-conditioning system through the flexible hoses. The machine has a discharging assembly to discharge the refrigerant fluid from the air-conditioning system and a valve distributor body, which is provided with a series of inlets/outlets hydraulically connected to the flexible hoses, to the recharging assembly and to the discharging assembly. The valve distributor body is in the form of a monobloc made of rigid material which is provided with straight inner through-ducts, each of which extends in the monobloc so as to have the two axial ends which are arranged on two respective faces of said monobloc opposite one to the other, and are each closed by a respective solenoid valve coupled to the face itself.

A safety isolation valve module includes a conduit having a service port, an inlet, an outlet, and ball valves separating each of the inlet and the outlet from the conduit. The ball valves may be manually manipulating to open or close flow and can be used to isolate the service port from either or both sides of the refrigerant systems. When servicing the service port or other components of the refrigerant system, the valves may be shut to enable servicing of portions of the system without risking injury or losing significant amounts of refrigerant to the atmosphere.

A safety isolation valve module includes a conduit having a service port, an inlet, an outlet, and ball valves separating each of the inlet and the outlet from the conduit. The ball valves may be manually manipulating to open or close flow and can be used to isolate the service port from either or both sides of the refrigerant systems. When servicing the service port or other components of the refrigerant system, the valves may be shut to enable servicing of portions of the system without risking injury or losing significant amounts of refrigerant to the atmosphere.

A method for suppressing the blockage of a miniature Joule-Thomson cryocooler based on a photothermal effect includes: determining form and temperature of a trace impurity contained in a working medium of the cryocooler according to an operating condition of the cryocooler, and selecting an optimal wavelength of an electromagnetic wave based on the form and temperature of the impurity and a peak of absorption spectrum of the impurity to electromagnetic waves; estimating, via a prediction model of input power of the electromagnetic wave, an initial value of input power corresponding to the optimal wavelength; and emitting an electromagnetic wave with the power W by a laser capable of generating the optimal wavelength in a direction perpendicular to a passage of a throttle in the cryocooler to eliminate the impurity in the passage of the throttle.