Patent application number | Description | Published |
20090248218 | ENVIRONMENT CONTROL SYSTEM FOR A TRANSPORT UNIT - An environment control system for a transport unit defining a cargo space. The environment control system comprises a controller in communication with a user interface such that the user interface identifies to the controller one kind of cargo within the cargo space, an environment adjusting system in communication with the controller and operable to regulate environment conditions inside the cargo space, and a database in communication with the controller for storing an environment profile as a function of the one kind of cargo such that the environment profile includes a plurality of environment control parameters, each environment control parameter controls the environmental adjusting system for a respective predetermined interval. | 10-01-2009 |
20100101770 | CONTROLLING CHILLED STATE OF A CARGO - A method for operating a refrigeration system for a container for refrigerating chilled cargo, and a system employing the method. The method includes providing a refrigeration system including a compressor, a condenser, an evaporator, an evaporator fan, and a heater. The method also includes determining the temperature of the supply air discharged into the container and the return air from the container, determining one of a requirement for heating and a requirement for cooling based on the temperatures of the return air and the supply air, activating the evaporator fan when a requirement for heating is determined and increasing the speed of the evaporator fan when increased heating is determined, and activating the compressor and the evaporator fan when a requirement for cooling is determined and increasing the power supplied to the compressor and maintaining the evaporator fan at a first speed when increased cooling is determined. | 04-29-2010 |
20100106302 | CONTROLLING FROZEN STATE OF A CARGO - A method for operating a refrigeration system for a container for refrigerating frozen cargo, and a system employing the method. The method includes providing a compressor, a condenser, and an evaporator connected in series, and providing an evaporator fan. The method also includes alternating operation of the compressor and the evaporator fan, in combination, between an active mode where the compressor compresses a refrigerant and directs the refrigerant through the condenser and the evaporator, and where the evaporator fan rotates to supply refrigerated supply air from the evaporator to the cargo within the container, and a sleep mode in which the compressor and the evaporator fan are deactivated, and operating the compressor and the evaporator fan in the sleep mode for a duration that is based on a measured duration of a prior sleep mode. | 04-29-2010 |
20100106303 | CONTROL OF PULL-DOWN IN REFRIGERATION SYSTEMS - A method for operating a refrigeration system for a container to pull down the temperature of cargo from ambient to a predetermined set-point temperature, and a system employing the method. The method includes operating a compressor at a first power to compress a refrigerant and direct the refrigerant through a condenser and an evaporator of the refrigeration system, initially operating an evaporator fan at a first speed to supply refrigerated supply air from the evaporator to the cargo within the container, sensing the temperature of the supply air, comparing the temperature of the supply air with a predetermined set-point temperature, and increasing the speed of the evaporator fan to a second speed faster than the first when the temperature of the supply air is lower than the predetermined set-point temperature to maintain the temperature of the supply air at the predetermined set-point temperature. | 04-29-2010 |
20100242527 | REFRIGERATED CONTAINER FOR SHIPS - The invention relates to a refrigerated container for ships, the inside of the rear side of said refrigerated container having formed in it a chute extending vertically and largely over the width of the container and featuring a transverse wall above which warmed refrigerated air which is collected beneath the roof area of the container can be supplied to the chute with downward deflection, wherein at least one port with an inserted annular part is formed in the transverse wall, and the warmed refrigerated air can be conducted to heat exchangers surfaces of an evaporator of a refrigerant circuit, said heat exchange surfaces projecting into the chute, via a blower through the flow cross section of said annular part, and wherein the refrigerated air cooled down by heat exchanger surfaces can be conducted back into the floor area of the refrigerated container from the bottom of the chute. In accordance with the invention flow directors for the warmed refrigerated air drawn in by the blower are provided above and to the side of the transverse wall, in order to laterally direct said warmed refrigerated air into the flow cross section of the annular part ( | 09-30-2010 |
20100251753 | REFRIGERATING CONTAINER FOR LAND, ROAD AND RAIL VEHICLES - The invention relates to a refrigerated container for land, road and rail vehicles, the inside of the rear side of said refrigerated container having formed in it a chute extending vertically and largely over the width of the container and featuring a transverse wall above which warmed refrigerated air which is collected beneath the roof area of the container can be supplied to the chute with downward deflection, wherein at least one port with an inserted annular part is formed in the transverse wall, and the warmed refrigerated air can be conducted to heat exchangers surfaces of an evaporator of a refrigerant circuit, said heat exchange surfaces projecting into the chute, via a blower through the flow cross section of said annular part, and wherein the refrigerated air cooled down by heat exchanger surfaces can be conducted back into the floor area of the refrigerated container from the bottom of the chute. In accordance with the invention flow directors for the warmed refrigerated air drawn in by the blower are provided above and to the side of the transverse wall, in order to laterally direct said warmed refrigerated air into the flow cross section of the annular part ( | 10-07-2010 |
20110146311 | APPARATUS FOR CONTROLLING RELATIVE HUMIDITY IN A CONTAINER - In one embodiment, the invention provides a refrigeration system having a compressor configured to compress a refrigerant gas and a condenser fluidly coupled to the compressor to receive compressed refrigerant gas from the compressor, the condenser configured to condense the refrigerant gas. In addition the refrigeration system includes a heat exchanger having a first section fluidly coupled to the compressor, and a second section fluidly coupled between the condenser and the compressor, wherein the first section receives compressed refrigerant gas from the compressor, and wherein the second section receives condensed refrigerant from the condenser, evaporates the refrigerant, and delivers the evaporated refrigerant to the compressor. | 06-23-2011 |
20120174604 | REFRIGERATION SYSTEM WITH A DISTRIBUTOR HAVING A FLOW CONTROL MECHANISM AND A METHOD FOR CONTROLLING SUCH A SYSTEM - A method of controlling a refrigeration system with a closed circuit for circulating a refrigerant wherein the closed circuit has a compressor for compressing the refrigerant, a condenser for receiving and condensing at least part of the compressed refrigerant, an evaporator for receiving and evaporating the condensed refrigerant, and a return conduit for returning the refrigerant from the evaporator to the compressor. The evaporator has several evaporator sections with corresponding conduits that may be individually controlled so as to obtain individual refrigeration effects of corresponding individual evaporator sections. | 07-12-2012 |
20140041402 | APPARATUS FOR CONTROLLING RELATIVE HUMIDITY IN A CONTAINER - In one embodiment, a method of operating a refrigeration system includes measuring a relative humidity of a container and comparing the measured relative humidity to a humidity set point. The method also includes operating evaporator fans of a refrigeration system when the measured relative humidity is above the humidity set point. | 02-13-2014 |
20140069126 | CONTROLLING CHILLED STATE OF A CARGO - A method for operating a refrigeration system for a container for refrigerating chilled cargo includes providing a refrigeration system including a compressor and an evaporator fan associated with an evaporator. The method also includes determining the temperature of supply air and the temperature of return air. The method further includes determining one of a requirement for heating and a requirement for cooling based on the temperature of the return air and the temperature of the supply air. The method additionally includes activating the evaporator fan when a requirement for heating is determined and increasing the speed of the evaporator fan when increased heating is determined. The method also includes activating the compressor and the evaporator fan when a requirement for cooling is determined and increasing the power supplied to the compressor and maintaining the evaporator fan at a first speed when increased cooling is determined. | 03-13-2014 |
20140311171 | CONTROLLING CHILLED STATE OF A CARGO - A method for operating a refrigeration system for a container for refrigerating chilled cargo includes providing a refrigeration system including a compressor and an evaporator fan associated with an evaporator. The method also includes determining the temperature of supply air and the temperature of return air. The method further includes determining one of a requirement for heating and a requirement for cooling based on the temperature of the return air and the temperature of the supply air. The method additionally includes activating the evaporator fan when a requirement for heating is determined and increasing the speed of the evaporator fan when increased heating is determined. The method also includes activating the compressor and the evaporator fan when a requirement for cooling is determined and increasing the power supplied to the compressor and maintaining the evaporator fan at a first speed when increased cooling is determined. | 10-23-2014 |