| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 062117000 | Dividing refrigerant flow, e.g., bypass parallel units | 46 |
| 20080196420 | Flashgas Removal From a Receiver in a Refrigeration Circuit - Refrigeration circuit ( | 08-21-2008 |
| 20080289345 | A Heat Extraction Machine and a Method of Operating a Heat Extraction Machine - The invention relates to a refrigeration machine, particularly a heat pump, comprising a closed circuit, which contains a coolant and in which an evaporator, a compressor, a condenser and an, in particular, electrically operated expansion valve are arranged one after the other. The refrigeration machine also comprises an overheating control unit for at least intermittently regulating the temperature of the coolant in the area of the compressor, particularly the compression final temperature. The invention also relates to a method for operating a refrigeration machine of the aforementioned type. | 11-27-2008 |
| 20080307805 | Dual Temperature Refrigeration Circuit - Combined medium and low temperature refrigeration circuit for circulating a refrigerant in a predetermined flow direction includes, in flow direction, a heat-rejecting heat exchanger, a medium temperature refrigeration consumer, a medium pressure vapor separator having a vapor portion and a liquid portion connected to the medium temperature refrigeration consumer unit, a low temperature refrigeration consumer connected to the liquid portion of the medium pressure vapor separator, and a compressor unit having an inlet connected to the vapor portion of the medium pressure vapor separators and the low temperature refrigeration consumer. | 12-18-2008 |
| 20090025405 | Economized Vapor Compression Circuit - An economized vapor compression circuit is disclosed. An evaporator, compressor, condenser and economizer are fluidly connected by a refrigerant line containing refrigerant. A portion of the liquid refrigerant leaving the economizer is diverted away from the evaporator to sub-cool liquid refrigerant at a location between the condenser and the evaporator. | 01-29-2009 |
| 20090038321 | Method and system for improving the efficiency of a refrigeration system - A system for atomizing the refrigerant directed to an evaporator in a vapor compression refrigeration system using spray nozzles. In one embodiment, one or more spray nozzles discharge into a distributor which is connected via a plurality of conduits to the various evaporator circuits. The distributor is designed to deliver a volume of refrigerant to each circuit based on airflow rates across the circuit. In another embodiment, an atomizing spray nozzle is interposed in each evaporator circuit and the nozzles are sized to distribute atomized refrigerant to the various evaporator circuits based on airflow rates. The invention also comprehends a method if improving the efficiency of existing system by replacing conventional expansion devices with spray nozzles sized in each circuit in relation to the airflow. | 02-12-2009 |
| 20090038322 | TRANSPORT REFRIGERATION UNIT - A refrigerant unit associated with a product transport container is provided with a dual-path, parallel flow expansion circuit. The expansion circuit includes a primary expansion device disposed in a primary refrigerant flow path and an auxiliary expansion device disposed in a secondary refrigerant flow path. During operation of the refrigeration unit in a stable temperature maintenance mode, refrigerant flow is supplied to the evaporator coil through the primary refrigerant flow path only. During operation of the refrigeration unit in a temperature pull-down mode, to increase the refrigerant mass flow through the evaporator coil, refrigeration flow is supplied to the evaporator coil through the primary refrigerant flow path and the secondary refrigerant flow path of the expansion circuit. | 02-12-2009 |
| 20090249807 | HVAC and Battery Thermal Management for a Vehicle - A HVAC and battery thermal system and method for a vehicle having a passenger cabin and a battery pack is disclosed. The system may comprise a refrigerant loop and a coolant loop. The refrigerant loop includes a first leg and a second leg, the first leg including an expansion device and an evaporator, and the second leg including an expansion device and a chiller. The coolant loop directs coolant through the battery pack and includes a controllable coolant routing valve, a bypass branch and a chiller branch, with the chiller in the chiller branch. The coolant routing valve has a bypass outlet that directs the coolant into the bypass branch and a chiller outlet that directs the coolant into the chiller branch. The coolant loop may also include a radiator branch and battery radiator, with the coolant routing valve including a radiator outlet that directs the coolant into the radiator branch. | 10-08-2009 |
| 20090293515 | ECONOMIZED REFRIGERANT VAPOR COMPRESSION SYSTEM FOR WATER HEATING - An economized refrigerant vapor compression system ( | 12-03-2009 |
| 20100050668 | Refrigerant Charge Storage - A refrigeration system includes a compressor, first and second heat exchangers, and an expansion device. A refrigerant recirculating flowpath extends sequentially downstream through the compressor, first heat exchanger, expansion device, and second heat exchanger The system includes a charge storage system. The charge storage system includes first and second refrigerant storage chambers. At least one valve is coupled to the storage chambers to permit the storage chambers to each be individually placed in alternative communication with the flowpath upstream and downstream of the expansion device. | 03-04-2010 |
| 20100077777 | ECONOMIZED REFRIGERATION CYCLE WITH EXPANDER - A refrigerant vapor compression system includes a compression device, a heat rejecting heat exchanger, an economizer heat exchanger, an expander and an evaporator disposed in a refrigerant circuit. An evaporator bypass line is provided for passing a portion of the refrigerant flow from the main refrigerant circuit after having traversed a first pass of the economizer heat exchanger through the expander to partially expand it to an intermediate pressure and thence through a second pass of the economizer heat exchanger and into an intermediate pressure stage of the compression device. An economizer bypass line is also provided for passing a portion of the refrigerant from the main refrigerant circuit after having traversed the heat rejecting heat exchanger through a restrictor type expansion device and thence into the evaporator bypass line as liquid refrigerant or a mix of liquid and vapor refrigerant for injection into an intermediate pressure stage of the compression device. Both economizer and injection flows are mixed together prior to entering an intermediate compression point, when an economizer circuit is active. The invention allows for enhanced system performance and advanced discharge temperature control. | 04-01-2010 |
| 20100083679 | TEMPERATURE CONTROL SYSTEM WITH A DIRECTLY-CONTROLLED PURGE CYCLE - A temperature control system includes a compressor, a condenser, an evaporator, and an accumulator. A liquid level sensor is associated with the accumulator tank generates a signal indicative of the level of the liquid heat transfer fluid inside the accumulator. A valve is in fluid communication with the condenser, the compressor, and the evaporator and is operable in a first position and a second position. The first position directs the heat transfer fluid from the compressor to the condenser, and the second position directs the heat transfer fluid from the compressor to the evaporator without passing through the first heat exchanger. A controller is in electrical communication with the liquid level sensor and the valve and is operable to receive the signal and move the valve from the first position to the second position based on the signal. | 04-08-2010 |
| 20100199694 | REFRIGERANT SYSTEM WITH INTERCOOLER AND LIQUID/VAPOR INJECTION - A refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler is cooled by a secondary fluid such as ambient air. A vapor/liquid injection function is also provided for the refrigerant system. The intercooler function and the vapor/liquid injection function are selectively activated on demand depending on environmental conditions and thermal load in a conditioned space. This invention is particularly important for the CO2 refrigerant systems operating in the transcritical cycle. | 08-12-2010 |
| 20100223938 | REFRIGERATING SYSTEM WITH PARALLEL STAGED ECONOMIZER CIRCUITS USING MULTISTAGE COMPRESSION - A refrigeration system ( | 09-09-2010 |
| 20100223939 | REFRIGERATING SYSTEM WITH PARALLEL STAGED ECONOMIZER CIRCUITS DISCHARGING TO INTERSTAGE PRESSURES OF A MAIN COMPRESSOR - A refrigeration system ( | 09-09-2010 |
| 20100313583 | HELIUM MANAGEMENT CONTROL SYSTEM - A helium management control system for controlling the helium refrigerant supply from a common manifold supplies a plurality of cryogenic refrigerators with an appropriate helium supply. The system employs a plurality of sensors to monitor and regulate the overall refrigerant supply to deliver an appropriate refrigerant supply to each of the cryogenic refrigerators depending on the computed aggregate cooling demand of all of the cryogenic refrigerators. An appropriate supply of helium is distributed to each cryopump by sensing excess and sparse helium refrigerant and redistributing refrigerant accordingly. If the total refrigeration supply exceeds the total refrigerant demand, or consumption, excess refrigerant is directed to cryogenic refrigerators which can utilize the excess helium to complete a current cooling function more quickly. Similarly, if the total refrigeration demand exceeds the total refrigeration supply, the refrigerant supply to some or all of the cryogenic refrigerators will be reduced accordingly so that detrimental or slowing effects are minimized based upon the current cooling function. | 12-16-2010 |
| 20110088420 | Chemical State Monitor for Refrigeration System - A chemical state monitoring system for a refrigeration system that continuously monitors and detects problems within a refrigeration system. The monitoring system comprises a sampling device for collecting refrigerant in a high pressure liquid line of the refrigeration system, a purge valve in an upper portion of the sampling device; a refrigerant state sensor for sensing a condition indicative of the state of refrigerant in the collection chamber; and a controller operatively connected to the refrigerant state sensor and to the purge valve for controlling said purge valve and detecting fault conditions based on signals from the sensor. | 04-21-2011 |
| 20110138827 | IMPROVED OPERATION OF A REFRIGERANT SYSTEM - A method and system for operating a refrigerant system having a reciprocating compressor with a main cylinder module and an economizer cylinder module includes regulating a flow of refrigerant into the main cylinder module and regulating a flow of refrigerant into the economizer cylinder module. The main cylinder module and the economizer cylinder module have separate inlet and outlet discharge streams. The flow through each module is regulated as a function of an operating mode of the refrigerant system, which includes various modes of loading and unloading based, in part, on a cooling demand. In some embodiments, the refrigerant system may include a connector refrigerant line configured to redirect refrigerant from the economizer cylinder module to the main cylinder module or from the main cylinder module to the economizer cylinder module. | 06-16-2011 |
| 20110197603 | Gravity Flooded Evaporator and System for Use Therewith - Disclosed is a gravity flooded evaporator for use with commercial or industrial heating, air conditioning, and ventilation systems, and which does not require integration or use of a conventional, separately field-piped, surge vessel and associated subsystem. | 08-18-2011 |
| 20110197604 | SECONDARY LOOP COOLING SYSTEM HAVING A BYPASS AND A METHOD FOR BYPASSING A RESERVOIR IN THE SYSTEM - An air conditioning or refrigeration system includes a secondary loop cooling system for use with a vapor compression system having a bypass line in order to bypass a reservoir in the secondary loop system. This bypass allows the air conditioning or refrigeration system to cool down more quickly. The secondary loop cooling system uses a non-flammable cooling fluid, which is particularly useful when the refrigerant used in the vapor compression system is flammable. | 08-18-2011 |
| 20110296859 | COAXIAL ECONOMIZER ASSEMBLY AND METHOD - A coaxial economizer for use in a chiller system comprising an inner housing and an outer housing having a common longitudinal axis. The outer housing has an inlet for receiving a fluid from a upstream compressor stage of a multistage compressor and an outlet for conveying a fluid to a downstream compressor stage of a multistage compressor. A flow chamber forms a fluid flow path about the inner housing. A flash chamber is coterminous with the flow chamber and flashes fluid in a liquid state to a gas state. A flow passage between said flash chamber and the flow chamber for conveying a flashed gas from the flash chamber to the flow chamber; wherein the flashed gas conveyed from the flash chamber and the fluid received from the inlet of the outer housing mix along the fluid flow path toward the outlet of the outer housing. | 12-08-2011 |
| 20130074531 | REFRIGERANT CIRCUIT WITH INTEGRATED MULTI-MODE THERMAL ENERGY STORAGE - Disclosed is a method and device for a refrigerant-based thermal energy storage and cooling system with integrated multi-mode refrigerant loops. The disclosed embodiments provide a refrigerant-based thermal storage system with increased versatility, reliability, lower cost components, reduced power consumption and ease of installation. | 03-28-2013 |
| 20130098081 | HIGHER EFFICIENCY APPLIANCE EMPLOYING THERMAL LOAD SHIFTING IN REFRIGERATORS HAVING HORIZONTAL MULLION - An appliance includes a cabinet; a first compartment; and a second compartment. The first compartment and the second compartment are separated by a horizontal mullion. The cabinet also typically includes a coolant system that has: a single compressor for regulating a temperature of the first compartment and a temperature of the second compartment operably connected to at least one evaporator; a shared coolant fluid connection system; and a coolant fluid spaced within the shared coolant fluid connection system used to regulate both the temperature of the first compartment and the second compartment. The compressor can provide the shared coolant at at least two different pressures to at least one evaporator using the shared coolant fluid connection circuit. The ratio of the substantially steady state heat gain for the first compartment to the substantially steady state total heat gain for the overall cabinet is about 0.65:1 or greater. | 04-25-2013 |
| 20130098082 | HIGHER EFFICIENCY APPLIANCE EMPLOYING THERMAL LOAD SHIFTING IN REFRIGERATORS HAVING VERTICAL MULLION - An appliance includes a cabinet; a first compartment; and a second compartment. The first compartment and the second compartment are separated by a vertical mullion. The cabinet also typically includes a coolant system that has: a single compressor for regulating a temperature of the first compartment and a temperature of the second compartment operably connected to at least one evaporator; a shared coolant fluid connection system; and a coolant fluid spaced within the shared coolant fluid connection system used to regulate both the temperature of the first compartment and the second compartment. The compressor can provide the shared coolant at at least two different pressures to at least one evaporator using the shared coolant fluid connection circuit. The ratio of the substantially steady state heat gain for the first compartment to the substantially steady state total heat gain for the overall cabinet is about 0.65:1 or greater. | 04-25-2013 |
| 20130111935 | High Efficiency Ejector Cycle | 05-09-2013 |
| 20130213065 | DUAL CAPILLARY TUBE / HEAT EXCHANGER IN COMBINATION WITH CYCLE PRIMING FOR REDUCING CHARGE MIGRATION - A refrigerator appliance including a multi-capacity compressor and a refrigerant circuit with two conduits and pressure reducing devices arranged in parallel between an evaporator and a condenser. Refrigerant can flow through one, both or none of the conduits and pressure reducing devices. The appliance also has a heat exchanger in contact with either one pressure reducing device, or one conduit between the pressure reducing device and the valve system. The appliance also includes a controller for priming the compressor above a nominal capacity for a predetermined or calculated duration at the beginning of an ON-cycle. | 08-22-2013 |
| 20130213066 | REFRIGERATION ARRANGEMENT AND METHODS FOR REDUCING CHARGE MIGRATION - A refrigerator appliance including a refrigerant circuit between a condenser, an evaporator, and a compressor that includes two conduits and pressure reducing devices arranged in parallel between the evaporator and the condenser. The appliance also includes a valve system to direct refrigerant through one, both or none of the conduits and pressure reducing devices, and a heat exchanging member in thermal contact with either one pressure reducing device, or one conduit between the pressure reducing device and the valve system. | 08-22-2013 |
| 20130255292 | SYSTEM AND METHOD FOR COOLING POWER ELECTRONICS USING HEAT SINKS - A heat pump includes a main refrigerant circuit having a compressor, an indoor heat exchanger, and an outdoor heat exchanger, and a reversing valve. A biflow expansion valve is configured to receive condensed liquid refrigerant and to expand the refrigerant. A cooling circuit in fluid communication with the main refrigerant line includes an expansion device configured to receive a portion of condensed liquid refrigerant from the main refrigerant circuit and to expand the portion of condensed liquid refrigerant. A heat sink is configured to receive the expanded portion of refrigerant from the expansion device. Power electronics are coupled to the heat sink such that the portion of expanded refrigerant from the expansion device passes through the heat sink and cools the power electronics. | 10-03-2013 |
| 20140190192 | VALVE DEVICE, IN PARTICULAR FOR A REFRIGERATING MACHINE - The invention relates to a valve device for a refrigerating machine that circulates a refrigerant, which valve device is provided with at least one condenser and at least one evaporator. The valve device comprises at least one inlet, at which the refrigerant in the condenser can be fed to the valve device, at least three outlets, through which the refrigerant in the valve device can be discharged into the evaporator, and a valve element, which is rotatably arranged about an axis (A) and can be brought into a plurality of positions (S | 07-10-2014 |
| 20150007598 | COOLING SYSTEM AND CONTROL METHOD THEREOF - A cooling system and a control method thereof are provided. The cooling system may include a first compressor, a second compressor disposed downstream of the first compressor, an outdoor heat exchanger the performs heat exchange between refrigerant compressed in the first and/or second compressor and external air, an expansion device that decompresses the refrigerant condensed in the outdoor heat exchanger, a cooling evaporator evaporating the refrigerant decompressed in the expansion device, a bypass tube that guides refrigerant compressed in the first compressor to the outdoor heat exchanger, bypassing the second compressor, and a valve device controlling the flow of refrigerant discharged from the first compressor so as to selectively introduce refrigerant into the second compressor. | 01-08-2015 |
| 20150020534 | METHOD FOR RECYCLING ENERGY FROM COMPRESSOR OUTLET, AND AIR CONDITIONER - A method for recovering and using energy from a fluid exiting an outlet of a compressor in an air conditioning system, the method including: disposing an ejector between a compressor and a condenser of an air conditioning system, the ejector including a first inlet for receiving a working fluid and a second inlet for receiving an ejection fluid; connecting the first inlet of the ejector to an outlet of the compressor; connecting an outlet of the ejector to an inlet of the condenser; and connecting the second inlet of the ejector to an evaporator of the air conditioning system. | 01-22-2015 |
| 20150027151 | AIR CONDITIONING SYSTEMS FOR AT LEAST TWO ROOMS USING A SINGLE OUTDOOR UNIT - A high-efficiency air conditioning system for conditioning a plurality of rooms within an interior of a building, the air conditioning system including: two separate rooms within a building, a single outdoor unit a refrigerant flow pathway that includes a plurality of refrigerant conduits having a common refrigerant flow path portion and at least two divergent flow path portions, a first divergent flow path where the first evaporator and second evaporator are in parallel with one another; at least one throttling device and at least a first indoor air handling unit positioned within and providing cooling to the first room and a second indoor air handling unit positioned within and providing cooling to a second room. The compressor is incapable of simultaneously supplying both the first evaporator and the second evaporator at their full cooling capacity. | 01-29-2015 |
| 20150047378 | HEAT CYCLE FOR TRANSFER OF HEAT BETWEEN MEDIA AND FOR GENERATION OF ELECTRICITY - A heat pump circuit including a compressor that compresses a working fluid from a gas in a low pressure, low temperature first state to a high pressure, a high temperature second state. A first subflow of the working fluid is condensed into a gaseous/liquid mixture and assumes a third state by the working fluid delivering heat to a first medium. The first subflow of the working fluid is expanded and returns to a gas in the first state by absorbing heat from a second medium, whereupon the working fluid completes the cycle again. A second subflow of the compressed working fluid is expanded from the second state and the energy contents in the second subflow converted into electrical energy, whereafter the expanded working fluid is returned to the compressor after passage of the evaporator, or after expansion in the energy converter from the second to the first state. | 02-19-2015 |
| 20150135746 | PARALLEL EVAPORATOR CIRCUIT WITH BALANCED FLOW - Provided is a pumped loop system ( | 05-21-2015 |
| 20150292776 | METHOD TO CONTROL A COOLING CIRCUIT - A method to control a cooling circuit, with the cooling circuit comprising at least three evaporators, which are fluid connected to the cooling circuit in a parallel connection in individual paths, with each of the paths containing one shut-off valve, through which the flow of the refrigerant, which is circulating through the specific path, can be metered or cut off, where the shut-off valves can be activated or deactivated individually, with the individual evaporators being operative when the shut-off valve located within the specific path of the individual evaporator permits fluid flow, where a maximum of two of the at least three evaporators are operative simultaneously. | 10-15-2015 |
| 20150300710 | PHASE SEPARATOR FOR A SEALED SYSTEM - A sealed system is provided. The sealed system includes a compressor and a phase separator disposed downstream of the compressor. The phase separator includes a casing that defines a liquid refrigerant collection volume and a gaseous refrigerant collection volume. A refrigerant inlet conduit extends between the compressor and the gaseous refrigerant collection volume, a gaseous refrigerant outlet conduit has an inlet positioned within the gaseous refrigerant collection volume of the casing and a liquid refrigerant outlet conduit has an inlet positioned within the liquid refrigerant collection volume of the casing. A plurality of cooling fins is positioned on an outer surface of the casing. A related refrigerator appliance is also provided. | 10-22-2015 |
| 20150345833 | ECONOMIZER INJECTION ASSEMBLY AND METHOD - Embodiments provided herein are directed to systems and methods of re-injecting vaporized flash refrigerant from an economizer into a two-stage compressor. The injection can be through an injection port positioned after the first compression stage. The location of the injection may have a relatively low static refrigerant pressure. The injection port and/or an injection pipe of the economizer may be configured to pre-condition the vaporized flash refrigerant so that a flow velocity and/or direction of the vaporized flash refrigerant flow can be match a flow velocity and/or direction of the refrigerant in the refrigerant conduit. | 12-03-2015 |
| 20150362245 | ACTIVE INSULATION HYBRID DUAL EVAPORATOR WITH ROTATING FAN - An appliance having a fresh food storage compartment and a freezer compartment. The appliance includes a forced air coil system disposed between the fresh food storage compartment and the freezer compartment and is configured to selectively provide cooling to one or both of the at least one fresh food storage compartment and the at least one freezer compartment. The forced air coil system includes an evaporator fan configured to provide cooling to the food storage compartment, the freezer compartment, or both. | 12-17-2015 |
| 20160031292 | VEHICLE COOLING CONTROL SYSTEM - A vehicle climate control system includes a condenser, a compressor, and a loop fluidly connecting the condenser and compressor. The system also includes a valve arrangement disposed within the loop. The valve arrangement includes a thermal expansion valve integrated with a solenoid valve. The solenoid valve has a powered closed state to prevent fluid flow into an evaporator and a non-powered open state to allow fluid flow through the thermal expansion valve into the evaporator. The evaporator is for cooling a cabin. The system further includes a controller programmed to, in response to a request for cooling of the cabin, command the solenoid valve from the powered state to the non-powered state. | 02-04-2016 |
| 20160040917 | METHODS AND SYSTEMS TO MANAGE REFRIGERANT IN A HEAT EXCHANGER - Methods and systems to manage refrigerant flow inside a shell and tube heat exchanger, such as a condenser, to reduce inundation effect are provided. A method of managing refrigerant flow may include collecting at least a portion the refrigerant in the liquid state and directing the collected refrigerant in the liquid state toward an end of an internal space of the condenser. The method may further include directing the refrigerant in the liquid form toward a subcooling section. The method may also include directing the collected in the liquid state toward a refrigerant outlet located at proximately a middle section of a length of the condenser through the subcooling section. The condenser may have one or more separation/collection pans positioned within heat transfer tubes to collect and direct the refrigerant in the liquid form. A two-stage refrigerant distributor is also disclosed. | 02-11-2016 |
| 20160047575 | Compressor Bearing Cooling - A vapor compression system ( | 02-18-2016 |
| 20160076795 | HEAT PUMP AND HVAC SYSTEM ARCHITECTURE FOR ELECTRIC VEHICLES - An HVAC system of an electric vehicle includes a housing having an inlet for receiving a flow of air therethrough and an air outlet in fluid communication with a passenger compartment of the vehicle. The HVAC system further includes a first heat exchanger disposed in the housing and a second heat exchanger disposed in the housing downstream from the first heat exchanger with respect of a direction of the flow of air through the housing. A primary circuit containing a flow of refrigerant therethrough is in fluid communication with the first heat exchanger. A secondary circuit is in one of fluid communication with and heat exchange communication with the primary circuit and in fluid communication with the second heat exchanger. | 03-17-2016 |
| 20160091236 | AIR CONDITIONING SYSTEM WITH VAPOR INJECTION COMPRESSOR - An air conditioning system can be toggled between a heating mode, in which heat is withdrawn from a source (e.g., a geothermal source) and deposited into a conditioned space (e.g., a building), and a cooling mode, in which heat is withdrawn from the conditioned space and deposited into the source. The air conditioning system uses a combination of efficiency-enhancing technologies, including injection of superheated vapor into the system's compressor from an economizer circuit, adjustable compressor speed, the use of one or coaxial heat exchangers and the use of electronic expansion valves that are continuously adjustable from a fully closed to various open positions. A controller may be used to control the system for optimal performance in both the heating and cooling modes, such as by disabling the economizer circuit and vapor injection when the system is in the cooling mode. | 03-31-2016 |
| 20160102901 | SYSTEMS AND METHODS FOR PRESSURE CONTROL IN A CO2 REFRIGERATION SYSTEM - Systems and methods for controlling pressure in a CO | 04-14-2016 |
| 20160131405 | HEAD PRESSURE CONTROL - A head pressure control system may control a high side operating condition of a vapor compression system. The head pressure control system includes a vapor compression system having a compressor, condenser, expansion valve, and evaporator. The head pressure control system may also include a high side condition sensor, a low side condition sensor, a controller, and a control device. The low side condition sensor may measure and communicate a low side operating condition to the controller. The high side condition sensor may measure and communicate a high side operating condition to the controller. The controller may compare a theoretical high side operating condition to the high side operating condition, and determine a control output. The controller may communicate the control output to a control device, which may influence the high side operating condition based on the control output. | 05-12-2016 |
| 20160138838 | INTERCOOLER BYPASS - A compressor system for compressing gases in a multistage compression includes a next-to-last compressor in a flow direction and a last compressor which are connected in series, one or more intercoolers between the next-to-last compressor and the last compressor, and an adsorption dryer connected downstream of the last compressor and designed as a rotation dryer having a rotating adsorption chamber. An inside of the adsorption chamber includes a regeneration sector and a drying sector. The regeneration sector is connected to the last compressor such that the compressed gas stream output from the last compressor is guided in a full stream principle through the regeneration sector. A bypass line which bypasses the intercoolers is situated between next-to-last compressor and last compressor, and includes a setting element to set the gas stream guided via the bypass line and therefore the regeneration entry temperature of the compressed gas in the regeneration sector appropriately. | 05-19-2016 |
| 20160161155 | HYBRID HEAT TRANSFER SYSTEM - According to one aspect, a hybrid heat transfer system includes a first thermally conductive path configured to passively transfer heat between a load having a load temperature (T | 06-09-2016 |
