US20190376499A1 - Relative vibration damping system for hvac systems - Google Patents
Relative vibration damping system for hvac systems Download PDFInfo
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- US20190376499A1 US20190376499A1 US16/040,298 US201816040298A US2019376499A1 US 20190376499 A1 US20190376499 A1 US 20190376499A1 US 201816040298 A US201816040298 A US 201816040298A US 2019376499 A1 US2019376499 A1 US 2019376499A1
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- bracket
- compressor
- heating
- refrigerant reservoir
- cooling system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/007—General arrangements of parts; Frames and supporting elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
- F04C2270/125—Controlled or regulated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/03—Suction accumulators with deflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- HVAC heating, ventilation, and air conditioning
- Environmental control systems are utilized in residential, commercial, and industrial environments to control environmental properties, such as temperature and humidity, for occupants of the respective environments.
- the environmental control system may control the environmental properties through control of an air flow delivered to and ventilated from the environment.
- an HVAC system may transfer heat between an air flow and refrigerant flowing through the HVAC system.
- the HVAC system may include several components to facilitate in the heat transfer. It is now recognized that some of the components may vibrate during operation of the HVAC system, which may affect operation of the components.
- a heating and cooling system includes a bracket insert configured to be adjustably positioned between a compressor of the heating and cooling system and a refrigerant reservoir of the heating and cooling system.
- the heating and cooling system further includes an adjustable band configured to be disposed about the compressor and the refrigerant reservoir, wherein the adjustable band is configured to be adjustable to bias the compressor and refrigerant reservoir toward one another.
- a damping system for a heating and cooling system includes a first bracket that includes a first flange disposed on a first side of the first bracket, a second bracket that includes a second flange disposed on a second side of the second bracket, and an adjustable band configured to be disposed about the compressor and the refrigerant reservoir, where the adjustable band is adjustable to bias the compressor and refrigerant reservoir toward one another.
- the first flange is configured to abut a compressor of the heating and cooling system and the second flange is configured to abut a refrigerant reservoir of the heating and cooling system, where the first bracket and the second bracket are configured to adjustably couple to one another.
- a heating and cooling system includes a compressor configured to pressurize refrigerant flowing through the heating and cooling system, a refrigerant reservoir configured to be in fluid communication with the compressor and configured to store liquid refrigerant, a bracket assembly that includes a first bracket and a second bracket, and an adjustable band configured to be disposed about the compressor and the refrigerant reservoir.
- the first bracket includes a first end configured to abut the compressor and the second bracket includes a second end configured to abut the refrigerant reservoir, and the first bracket and the second bracket are configured to be adjustably coupled to one another.
- the adjustable band is configured to be adjustable to bias the compressor and refrigerant reservoir toward one another.
- FIG. 1 is a schematic of an environmental control for building environmental management that may employ one or more HVAC units, in accordance with an aspect of the present disclosure
- FIG. 2 is a perspective view of an embodiment of the environmental control system of FIG. 1 , in accordance with an aspect of the present disclosure
- FIG. 3 is a schematic of a residential heating and cooling system, in accordance with an aspect of the present disclosure
- FIG. 4 is a schematic of an embodiment of a vapor compression system that can be used in any of the systems of FIGS. 1-3 , in accordance with an aspect the present disclosure
- FIG. 5 is a perspective view of an embodiment of components that may be used in any of the systems of FIGS. 1-4 including a vibration damping system, in accordance with an aspect the present disclosure
- FIG. 6 is a perspective view of an embodiment of a bracket insert of the vibration damping system of FIG. 5 , in accordance with an aspect the present disclosure
- FIG. 7 is a top view of another embodiment of a bracket insert of the vibration damping system of FIG. 5 , in accordance with an aspect the present disclosure
- FIG. 8 is a top view of another embodiment of a bracket insert of the vibration damping system of FIG. 5 , in accordance with an aspect the present disclosure
- FIG. 9 is a top view schematic of an embodiment of a band of the vibration damping system of FIG. 5 , in accordance with an aspect the present disclosure.
- FIG. 10 is a top view schematic of an embodiment of the vibration damping system of FIG. 5 , in accordance with an aspect the present disclosure.
- HVAC systems flow refrigerant through a refrigerant circuit to enable heat exchange between the refrigerant and other fluid flows, such as air flows.
- the refrigerant circuit includes a compressor configured to pressurize gaseous or vaporous refrigerant into a high pressure and temperature gas or vapor.
- the high pressure and temperature refrigerant is discharged into a condenser to cool and condense the refrigerant into a liquid, and then the liquid refrigerant flows through an evaporator.
- the liquid refrigerant evaporates into a gaseous or vaporous refrigerant again as it exchanges heat with another fluid flow, such as an air flow to be supplied to a conditioned space.
- the HVAC system may also include additional components, such as a refrigerant reservoir.
- the refrigerant reservoir is an accumulator configured to block liquid refrigerant from entering the compressor by filtering and storing liquid refrigerant from a mixture of liquid and gaseous refrigerant flowing from the evaporator to the compressor.
- the refrigerant reservoir may be a compensator configured to store and return refrigerant into the refrigerant circuit based on an operating mode of the HVAC system. That is, the compensator may withdraw refrigerant out of circulation in the refrigerant circuit when the HVAC system, such as a heat pump, is in a heating mode configured to heat a conditioned space serviced by the HVAC system. Furthermore, the compensator may return refrigerant to the refrigerant circuit when the HVAC system is in a cooling mode configured to cool the conditioned space serviced by the HVAC system.
- components of the HVAC system may vibrate.
- the compressor may vibrate, for example, due to operation of a coupled motor.
- the refrigerant reservoir may also vibrate, for example, due to operation of the refrigerant reservoir and/or due to vibration of the compressor propagated to the refrigerant reservoir.
- the vibration of components of the HVAC system may affect operation of the components, which may decrease a useful life of the HVAC system.
- the vibration frequency of the refrigerant reservoir and the vibration frequency of the compressor may interfere with operations of the refrigerant reservoir and the compressor, respectively. In some instances, these vibrations may increase stress at sections of the compressor and/or the refrigerant reservoir, such as at connecting points between the compressor and the refrigerant reservoir.
- a system to damp components of the HVAC system may enable the components to operate more effectively.
- a damping system to stiffen the components together may increase operating efficiency of the components.
- the damping system includes a bracket insert, which may be a single part and/or an assembly that includes multiple parts, configured to be inserted between the components and a band configured to wrap around the components. The combination of the bracket insert and the band tightens and holds the components together to restrict relative movement, and therefore relative vibration, of the components.
- FIG. 1 illustrates a heating, ventilating, and air conditioning (HVAC) system for building environmental management that may employ one or more HVAC units.
- HVAC heating, ventilating, and air conditioning
- a building 10 is air conditioned by a system that includes an HVAC unit 12 .
- the building 10 may be a commercial structure or a residential structure.
- the HVAC unit 12 is disposed on the roof of the building 10 ; however, the HVAC unit 12 may be located in other equipment rooms or areas adjacent the building 10 .
- the HVAC unit 12 may be a single packaged unit containing other equipment, such as a blower, integrated air handler, and/or auxiliary heating unit.
- the HVAC unit 12 may be part of a split HVAC system, such as the system shown in FIG. 3 , which includes an outdoor HVAC unit 58 and an indoor HVAC unit 56 .
- the HVAC unit 12 is an air cooled device that implements a refrigeration cycle to provide conditioned air to the building 10 .
- the HVAC unit 12 may include one or more heat exchangers across which an air flow is passed to condition the air flow before the air flow is supplied to the building.
- the HVAC unit 12 is a rooftop unit (RTU) that conditions a supply air stream, such as environmental air and/or a return air flow from the building 10 .
- RTU rooftop unit
- the HVAC unit 12 conditions the air, the air is supplied to the building 10 via ductwork 14 extending throughout the building 10 from the HVAC unit 12 .
- the ductwork 14 may extend to various individual floors or other sections of the building 10 .
- the HVAC unit 12 may be a heat pump that provides both heating and cooling to the building with one refrigeration circuit configured to operate in different modes.
- the HVAC unit 12 may include one or more refrigeration circuits for cooling an air stream and a furnace for heating the air stream.
- a control device 16 may be used to designate the temperature of the conditioned air.
- the control device 16 also may be used to control the flow of air through the ductwork 14 .
- the control device 16 may be used to regulate operation of one or more components of the HVAC unit 12 or other components, such as dampers and fans, within the building 10 that may control flow of air through and/or from the ductwork 14 .
- other devices may be included in the system, such as pressure and/or temperature transducers or switches that sense the temperatures and pressures of the supply air, return air, and so forth.
- the control device 16 may include computer systems that are integrated with or separate from other building control or monitoring systems, and even systems that are remote from the building 10 .
- FIG. 2 is a perspective view of an embodiment of the HVAC unit 12 .
- the HVAC unit 12 is a single package unit that may include one or more independent refrigeration circuits and components that are tested, charged, wired, piped, and ready for installation.
- the HVAC unit 12 may provide a variety of heating and/or cooling functions, such as cooling only, heating only, cooling with electric heat, cooling with dehumidification, cooling with gas heat, or cooling with a heat pump. As described above, the HVAC unit 12 may directly cool and/or heat an air stream provided to the building 10 to condition a space in the building 10 .
- a cabinet 24 encloses the HVAC unit 12 and provides structural support and protection to the internal components from environmental and other contaminants.
- the cabinet 24 may be constructed of galvanized steel and insulated with aluminum foil faced insulation.
- Rails 26 may be joined to the bottom perimeter of the cabinet 24 and provide a foundation for the HVAC unit 12 .
- the rails 26 may provide access for a forklift and/or overhead rigging to facilitate installation and/or removal of the HVAC unit 12 .
- the rails 26 may fit into “curbs” on the roof to enable the HVAC unit 12 to provide air to the ductwork 14 from the bottom of the HVAC unit 12 while blocking elements such as rain from leaking into the building 10 .
- the HVAC unit 12 includes heat exchangers 28 and 30 in fluid communication with one or more refrigeration circuits. Tubes within the heat exchangers 28 and 30 may circulate refrigerant, such as R- 410 A, through the heat exchangers 28 and 30 .
- the tubes may be of various types, such as multichannel tubes, conventional copper or aluminum tubing, and so forth.
- the heat exchangers 28 and 30 may implement a thermal cycle in which the refrigerant undergoes phase changes and/or temperature changes as it flows through the heat exchangers 28 and 30 to produce heated and/or cooled air.
- the heat exchanger 28 may function as a condenser where heat is released from the refrigerant to ambient air, and the heat exchanger 30 may function as an evaporator where the refrigerant absorbs heat to cool an air stream.
- the HVAC unit 12 may operate in a heat pump mode where the roles of the heat exchangers 28 and 30 may be reversed. That is, the heat exchanger 28 may function as an evaporator and the heat exchanger 30 may function as a condenser.
- the HVAC unit 12 may include a furnace for heating the air stream that is supplied to the building 10 . While the illustrated embodiment of FIG. 2 shows the HVAC unit 12 having two of the heat exchangers 28 and 30 , in other embodiments, the HVAC unit 12 may include one heat exchanger or more than two heat exchangers.
- the heat exchanger 30 is located within a compartment 31 that separates the heat exchanger 30 from the heat exchanger 28 .
- Fans 32 draw air from the environment through the heat exchanger 28 . Air may be heated and/or cooled as the air flows through the heat exchanger 28 before being released back to the environment surrounding the rooftop unit 12 .
- a blower assembly 34 powered by a motor 36 , draws air through the heat exchanger 30 to heat or cool the air.
- the heated or cooled air may be directed to the building 10 by the ductwork 14 , which may be connected to the HVAC unit 12 .
- the conditioned air flows through one or more filters 38 that may remove particulates and contaminants from the air. In certain embodiments, the filters 38 may be disposed on the air intake side of the heat exchanger 30 to prevent contaminants from contacting the heat exchanger 30 .
- the HVAC unit 12 also may include other equipment for implementing the thermal cycle.
- Compressors 42 increase the pressure and temperature of the refrigerant before the refrigerant enters the heat exchanger 28 .
- the compressors 42 may be any suitable type of compressors, such as scroll compressors, rotary compressors, screw compressors, or reciprocating compressors.
- the compressors 42 may include a pair of hermetic direct drive compressors arranged in a dual stage configuration 44 .
- any number of the compressors 42 may be provided to achieve various stages of heating and/or cooling.
- additional equipment and devices may be included in the HVAC unit 12 , such as a solid-core filter drier, a drain pan, a disconnect switch, an economizer, pressure switches, phase monitors, and humidity sensors, among other things.
- the HVAC unit 12 may receive power through a terminal block 46 .
- a high voltage power source may be connected to the terminal block 46 to power the equipment.
- the operation of the HVAC unit 12 may be governed or regulated by a control board 48 .
- the control board 48 may include control circuitry connected to a thermostat, sensors, and alarms. One or more of these components may be referred to herein separately or collectively as the control device 16 .
- the control circuitry may be configured to control operation of the equipment, provide alarms, and monitor safety switches.
- Wiring 49 may connect the control board 48 and the terminal block 46 to the equipment of the HVAC unit 12 .
- FIG. 3 illustrates a residential heating and cooling system 50 , also in accordance with present techniques.
- the residential heating and cooling system 50 may provide heated and cooled air to a residential structure, as well as provide outside air for ventilation and provide improved indoor air quality (IAQ) through devices such as ultraviolet lights and air filters.
- IAQ indoor air quality
- the residential heating and cooling system 50 is a split HVAC system.
- a residence 52 conditioned by a split HVAC system may include refrigerant conduits 54 that operatively couple the indoor unit 56 to the outdoor unit 58 .
- the indoor unit 56 may be positioned in a utility room, an attic, a basement, and so forth.
- the outdoor unit 58 is typically situated adjacent to a side of residence 52 and is covered by a shroud to protect the system components and to prevent leaves and other debris or contaminants from entering the unit.
- the refrigerant conduits 54 transfer refrigerant between the indoor unit 56 and the outdoor unit 58 , typically transferring primarily liquid refrigerant in one direction and primarily vaporized refrigerant in an opposite direction.
- a heat exchanger 60 in the outdoor unit 58 serves as a condenser for re-condensing vaporized refrigerant flowing from the indoor unit 56 to the outdoor unit 58 via one of the refrigerant conduits 54 .
- a heat exchanger 62 of the indoor unit functions as an evaporator. Specifically, the heat exchanger 62 receives liquid refrigerant, which may be expanded by an expansion device, and evaporates the refrigerant before returning it to the outdoor unit 58 .
- the outdoor unit 58 draws environmental air through the heat exchanger 60 using a fan 64 and expels the air above the outdoor unit 58 .
- the air is heated by the heat exchanger 60 within the outdoor unit 58 and exits the unit at a temperature higher than it entered.
- the indoor unit 56 includes a blower or fan 66 that directs air through or across the indoor heat exchanger 62 , where the air is cooled when the system is operating in air conditioning mode. Thereafter, the air is passed through ductwork 68 that directs the air to the residence 52 .
- the overall system operates to maintain a desired temperature as set by a system controller.
- the residential heating and cooling system 50 may become operative to refrigerate additional air for circulation through the residence 52 .
- the residential heating and cooling system 50 may stop the refrigeration cycle temporarily.
- the residential heating and cooling system 50 may also operate as a heat pump.
- the roles of heat exchangers 60 and 62 are reversed. That is, the heat exchanger 60 of the outdoor unit 58 will serve as an evaporator to evaporate refrigerant and thereby cool air entering the outdoor unit 58 as the air passes over the outdoor heat exchanger 60 .
- the indoor heat exchanger 62 will receive a stream of air blown over it and will heat the air by condensing the refrigerant.
- the indoor unit 56 may include a furnace system 70 .
- the indoor unit 56 may include the furnace system 70 when the residential heating and cooling system 50 is not configured to operate as a heat pump.
- the furnace system 70 may include a burner assembly and heat exchanger, among other components, inside the indoor unit 56 .
- Fuel is provided to the burner assembly of the furnace 70 where it is mixed with air and combusted to form combustion products.
- the combustion products may pass through tubes or piping in a heat exchanger, separate from heat exchanger 62 , such that air directed by the blower 66 passes over the tubes or pipes and extracts heat from the combustion products.
- the heated air may then be routed from the furnace system 70 to the ductwork 68 for heating the residence 52 .
- FIG. 4 is an embodiment of a vapor compression system 72 that can be used in any of the systems described above.
- the vapor compression system 72 may circulate a refrigerant through a circuit starting with a compressor 74 .
- the circuit may also include a condenser 76 , an expansion valve(s) or device(s) 78 , and an evaporator 80 .
- the vapor compression system 72 may further include a control panel 82 that has an analog to digital (A/D) converter 84 , a microprocessor 86 , a non-volatile memory 88 , and/or an interface board 90 .
- the control panel 82 and its components may function to regulate operation of the vapor compression system 72 based on feedback from an operator, from sensors of the vapor compression system 72 that detect operating conditions, and so forth.
- the vapor compression system 72 may use one or more of a variable speed drive (VSDs) 92 , a motor 94 , the compressor 74 , the condenser 76 , the expansion valve or device 78 , and/or the evaporator 80 .
- the motor 94 may drive the compressor 74 and may be powered by the variable speed drive (VSD) 92 .
- the VSD 92 receives alternating current (AC) power having a particular fixed line voltage and fixed line frequency from an AC power source, and provides power having a variable voltage and frequency to the motor 94 .
- the motor 94 may be powered directly from an AC or direct current (DC) power source.
- the motor 94 may include any type of electric motor that can be powered by a VSD or directly from an AC or DC power source, such as a switched reluctance motor, an induction motor, an electronically commutated permanent magnet motor, or another suitable motor.
- the compressor 74 compresses a refrigerant vapor and delivers the vapor to the condenser 76 through a discharge passage.
- the compressor 74 may be a centrifugal compressor.
- the refrigerant vapor delivered by the compressor 74 to the condenser 76 may transfer heat to a fluid passing across the condenser 76 , such as ambient or environmental air 96 .
- the refrigerant vapor may condense to a refrigerant liquid in the condenser 76 as a result of thermal heat transfer with the environmental air 96 .
- the liquid refrigerant from the condenser 76 may flow through the expansion device 78 to the evaporator 80 .
- the liquid refrigerant delivered to the evaporator 80 may absorb heat from another air stream, such as a supply air stream 98 provided to the building 10 or the residence 52 .
- the supply air stream 98 may include ambient or environmental air, return air from a building, or a combination of the two.
- the liquid refrigerant in the evaporator 80 may undergo a phase change from the liquid refrigerant to a refrigerant vapor. In this manner, the evaporator 38 may reduce the temperature of the supply air stream 98 via thermal heat transfer with the refrigerant. Thereafter, the vapor refrigerant exits the evaporator 80 and returns to the compressor 74 by a suction line to complete the cycle.
- the vapor compression system 72 may further include a reheat coil in addition to the evaporator 80 .
- the reheat coil may be positioned downstream of the evaporator relative to the supply air stream 98 and may reheat the supply air stream 98 when the supply air stream 98 is overcooled to remove humidity from the supply air stream 98 before the supply air stream 98 is directed to the building 10 or the residence 52 .
- any of the features described herein may be incorporated with the HVAC unit 12 , the residential heating and cooling system 50 , or other HVAC systems. Additionally, while the features disclosed herein are described in the context of embodiments that directly heat and cool a supply air stream provided to a building or other load, embodiments of the present disclosure may be applicable to other HVAC systems as well. For example, the features described herein may be applied to mechanical cooling systems, free cooling systems, chiller systems, or other heat pump or refrigeration applications.
- HVAC systems may use components to facilitate heat transfer between a refrigerant and an airflow.
- an HVAC system uses a compressor to pressurize the refrigerant and a refrigerant reservoir to optionally store refrigerant during operation of the HVAC system.
- such components may vibrate, which may affect performance of the components and result in inefficient operation of the HVAC system.
- vibration of one component may propagate to cause vibration of other components.
- implementing a damping system to components of the HVAC system may decrease vibrations during operation of the HVAC system.
- the damping system includes a band positioned around the components and a bracket insert positioned between the components.
- the combination of the band and the bracket insert stiffens the components of the system relative to one another to reduce relative movement and thus, relative vibration of the components.
- the damping system may also be applied to other suitable components of the HVAC system.
- the damping system may be applied to HVAC systems such as the HVAC unit 12 , the residential heating and cooling system 50 , or another HVAC system to damp components within the HVAC system.
- FIG. 5 is a perspective view of an HVAC system 150 that includes a compressor 152 and a refrigerant reservoir 154 .
- the compressor 152 and the refrigerant reservoir 154 are located adjacent to one another and are coupled together via tubing 156 .
- the tubing 156 enables the compressor 152 and the refrigerant reservoir 154 to be in fluid communication with one another, such that refrigerant may flow between the compressor 152 and the refrigerant reservoir 154 .
- the refrigerant reservoir 154 may be an accumulator configured to store liquid refrigerant to block the liquid refrigerant from entering the compressor 152 .
- the refrigerant reservoir 154 is a compensator configured to adjust an amount of refrigerant flowing within the HVAC system 150 , such as based on an operating mode of the HVAC system 150 .
- the damping system disclosed herein may also be used with other components of the HVAC system.
- the compressor 152 and the refrigerant reservoir 154 are upright or positioned substantially vertically, such that a base 158 of the compressor 152 is coupled to a first mount 160 and a base 162 of the refrigerant reservoir 154 is coupled to a second mount 164 .
- the first and second mounts 160 and 164 may couple the compressor 152 and refrigerant reservoir 154 , respectively, to a base plate of an outdoor unit, such as outdoor unit 58 shown in FIG. 3 .
- the remainder of the compressor 152 and the refrigerant reservoir 154 may not be coupled to any other mounts.
- the compressor 152 and the refrigerant reservoir 154 are coupled to the first mount 160 and second mount 164 , respectively, on one side and the remainder of the compressor 152 and the refrigerant reservoir 154 may be described as free-standing. Additionally, in between the compressor 152 and the refrigerant reservoir 154 , there may be a generally open space without intervening components of the HVAC system 150 .
- operation of the HVAC system 150 may cause vibrations of components of the HVAC system 150 .
- the compressor 152 may vibrate while pressurizing the refrigerant. Vibration of the compressor 152 may transfer to the refrigerant reservoir 154 via the tubing 156 .
- the refrigerant reservoir 154 may also vibrate, potentially at a different frequency.
- Relative vibration of the HVAC system 150 components may affect performance, such as the flow of refrigerant between the compressor 152 and the refrigerant reservoir 154 .
- a damping system 166 may be implemented onto the HVAC system 150 .
- the damping system 166 includes a bracket insert 168 positioned in between the compressor 152 and the refrigerant reservoir 154 .
- first end 170 of the bracket insert 168 abuts the compressor 152
- second end 172 of the bracket insert 168 abuts the refrigerant reservoir 154
- the first end 170 and the second end 172 may be shaped or contoured based on the size, shape, and contour of the compressor 152 and the refrigerant reservoir 154 .
- the compressor 152 and the refrigerant reservoir 154 are both cylindrical, but the compressor 152 has a larger circumference than the refrigerant reservoir 154 .
- the first end 170 may be a different shape than the second end 172 , such as including a radius of curvature larger than a radius of curvature of the second end 172 .
- the bracket insert 168 is adjustable to span a distance 174 between the compressor 152 and the refrigerant reservoir 154 that may vary from one system to another. Additionally, the bracket insert 168 is positioned at a height above the base 158 and the base 162 . The height may be based off a height of the compressor 152 and/or the refrigerant reservoir 154 , a position of the compressor 152 and/or the refrigerant reservoir 154 , operation of the HVAC system 150 , another suitable parameter, or any combination thereof.
- the damping system 166 includes a band 176 configured to be positioned around the compressor 152 and the refrigerant reservoir 154 .
- the band 176 is adjustable and includes an adjuster 178 to adjust a circumference of the band 176 . That is, the band 176 may be adjusted such that a first section 180 is in suitable contact with the compressor 152 and a second section 182 is in suitable contact with the refrigerant reservoir 154 .
- the band 176 may be a hose clamp, a strap, a belt, or another suitable component that wraps around the compressor 152 and the refrigerant reservoir 154 .
- the band 176 may include a flexible material configured to adjust to the respective shapes of the compressor 152 and refrigerant reservoir 154 .
- the band 176 is positioned at a height above the base 158 and the base 162 .
- the band 176 is positioned at a height that is similar to or substantially the same as the height of the bracket insert 168 . In this manner, forces generated by the band 176 act against forces produced by the bracket insert 168 and combine to reduce relative movement of the compressor 152 and the refrigerant reservoir 154 to damp the HVAC system 150 .
- FIG. 6 is a perspective view illustrating an embodiment of the bracket insert 168 .
- the bracket insert 168 includes a first plate 250 and a second plate 252 overlapping with the first plate 250 .
- the second plate 252 includes a first row of holes 254 positioned along a first side 256 of the second plate 252 and a second row of holes 258 positioned along a second side 260 of the second plate 252 . It should be appreciated that the holes in the first row of holes 254 and the second row of holes 258 may be positioned in a variety of manners or configurations.
- a distance 262 between holes of the first row of holes 254 is of a different length than a distance 264 between holes of the second row of holes 258 .
- the holes may be evenly or unevenly spaced. That is, in some embodiments, the distance 262 may be the same between each hole for the first row of holes 254 , while the distance 264 may vary between each hole for the second row of holes 258 .
- certain holes of the first row of holes 254 may be positioned closer or further to the first side 256 than other holes of the first row of holes 254 . Similar positioning of holes of the second row of holes 258 may also be implemented.
- FIG. 6 illustrates two rows of five holes, in additional or alternative embodiments, there may be any suitable number of holes in each row and the size of each hole may be different within each row. There may also be any number of rows of holes, and the holes in each row may be configured any manner discussed above. It should be appreciated that the holes of the second plate 252 may also be configured in similar manners discussed above or in manners not already discussed in this disclosure.
- the first plate 250 also include holes to align with the first row of holes 254 and the second row of holes 258 of the second plate 252 . Aligning the holes of each plate enables the first plate 250 to couple with the second plate 252 in creating the bracket insert 168 to insert between components of the HVAC system 150 .
- the holes of the first plate 250 may also be configured in various manners, including positioned in different rows, at different distances from one another, of different sizes, or in any other configuration not already described. As such, the relative positions of the first plate 250 and the second plate 252 may be adjusted to align different holes to configure and size the bracket insert 168 for suitable use with the components of the HVAC system 150 .
- the relative position of the first plate 250 and the second plate 252 may be selected based on the distance between the components and/or the angle of the sections of the components that the first plate 250 and the second plate 252 are respectively in contact with.
- bolts 268 may be inserted through respectively aligned holes of the first plate 250 and holes of the second plate 252 .
- the bolts 268 may be tightened via nuts 270 .
- FIG. 6 illustrates the bolts 268 as being inserted from atop the second plate 252 and the nuts 270 positioned to couple onto the bolts 268 below the first plate 250
- the bolts 268 may also be inserted from underneath the first plate 252 , and the nuts 270 may couple atop the second plate 252 .
- the bolts 268 insert from above the second plate 252 and for a remaining portion of the holes, bolts 268 insert from below the first plate 250 .
- the properties of the bolts 268 may be based at least in part on parameters such as size of the holes, position of the holes, operation of the HVAC system 150 , any other suitable parameter, or any combination thereof.
- the properties of the bolts 268 may also vary within each bracket insert 168 , such as to fit into holes of different sizes.
- washers 272 may be used.
- washers 272 may be positioned to contact the first plate 250 , to contact the second plate 252 , or both.
- the properties of the washers 272 may be based at least in part on parameters of components of the HVAC system 150 and/or operation of the HVAC system 150 .
- the first plate 250 and the second plate 252 may include materials such as a metal, a composite, a polymer, another suitable material, or any combination thereof.
- the bracket insert 168 includes a first flange 274 located at the first end 170 of the first plate 250 and a second flange 276 located at the second end 172 of the second plate 252 .
- the first flange 274 and the second flange 276 increase a surface area for the bracket insert 168 to contact the components of the HVAC system 150 .
- the first and second flanges 274 and 276 function to distribute the force of the bracket insert 168 applied to components when the bracket insert 168 is tightly secured in between the components.
- the first and second flanges 274 and 276 also increase the rigidity of the bracket insert 168 when it is installed between components of the HVAC system 150 .
- first flange 274 and the second flange 276 may be selected to accommodate or correspond with the shape of the components of the HVAC system 150 , such as including respective radius of curvatures to match the circumferences of the compressor 152 and the refrigerant reservoir 154 .
- first flange 274 and the second flange 276 may be a different shape than the arcuate geometry depicted in FIG. 6 .
- the first flange 274 and/or the second flange 276 rather than respectively extending upwards from the first plate 250 and the second plate 252 , may extend downwards, or both upwards and downwards.
- the first flange 274 and/or the second flange 276 may also extend past a side, such as the first side 256 and/or the second side 260 .
- the configuration of the first flange 274 and the second flange 276 may differ from one another and may be based at least in part on geometry of the components of the HVAC system 150 and/or operation of the HVAC system 150 .
- the first flange 274 and the second flange 276 may be formed via bending of the respective first plate 250 and second plate 252 , but in additional or alternate embodiments, the first flange 274 and/or the second flange 276 are separate components that are coupled to the first plate 250 and the second plate 252 , such as via welding, fastening, riveting, gluing, another suitable method, or any combination thereof.
- padding 278 may be placed in between each respective flange and the component abutted by the flange.
- the padding 278 may include material such as rubber, sponge, foam, fabric, another suitable material, or any combination thereof to absorb loads or forces when the bracket insert 168 is installed between the components of the HVAC system 150 .
- the padding 278 may also include an adhesive 280 to secure contact between the bracket insert 168 and the components.
- the adhesive 280 may be on one side of the padding 278 , such as in contact with the component or in contact with the bracket insert 168 , or the adhesive 280 may be on both sides of the padding 278 .
- FIG. 6 illustrates the first plate 250 and the second plate 252 as having a generally similar rectangle shape
- the shape of the first plate 250 may be different than the shape of the second plate 252 .
- the first plate 250 may be placed atop the second plate 252 .
- the first plate 250 may be positioned in different manners, such as on a side of the second plate 252 .
- the present disclosure discusses using bolts 268 and nuts 270 to fasten the first plate 250 with the second plate 252 , other methods of fastening may be used, such as welding, gluing, riveting, clamping, hinging, another suitable method, or any combination thereof.
- bracket insert 168 may be limited in adjustments.
- other methods to adjust the positioning of the first plate 250 and the second plate 252 may be implemented, such as sliding, pivoting, rotating, or any other method to move the first plate 250 with respect to the second plate 252 .
- FIG. 7 is a top view of an embodiment of the bracket insert 168 , which is a single part configured to be positioned between the compressor 152 and the refrigerant reservoir 154 . More particularly, the illustrated bracket insert 168 may be positioned between the compressor 152 and the refrigerant reservoir 154 in a number of different orientations to accommodate different distances between compressors 152 and refrigerant reservoirs 154 , different sizes of compressors 152 and refrigerant reservoirs 154 , and so forth. To this end, the bracket insert 168 includes a first length 300 , a second length 302 , and a third length 304 .
- the first length 300 , the second length 302 , and the third length 304 may be different than one another.
- the first length 300 may be longer than the second length 302 and the third length 304
- the second length 302 and the third length 304 may be approximately the same length.
- the lengths 300 , 302 , and 304 are arranged generally cross-wise relative to one another. Accordingly, the bracket insert 168 may be positioned between the compressor 152 and the refrigerant reservoir 154 and rotated to position a desired length therebetween.
- each length of the bracket insert 168 may include a set of sides positioned generally opposite of one another. Each side of the set of sides may include a particular radius of curvature such that the side may abut the compressor 152 or the refrigerant reservoir 154 . That is, the first length 300 may include a first set of sides 306 with a first radius of curvature, the second length 302 may include a second set of sides 308 with a second radius of curvature, and the third length 304 may include a third set of sides with a third radius of curvature. In some embodiments, the third radius of curvature may be greater than the second radius of curvature, while the second radius of curvature may be approximately the same as the first radius of curvature.
- any appropriate combination of lengths and radii of curvature may be included with the bracket 168 to accommodate various distances 174 between the compressor 152 and the refrigerant reservoir 154 and/or to accommodate respective circumferences of the compressor 152 and/or the refrigerant reservoir 154 .
- different sides of a single side of sides may include different radii of curvature.
- one side of the first set of sides 306 may include a particular radius of curvature and the other side of the first set of sides 306 may include another radius of curvature.
- the bracket 168 may include additional lengths, differently shaped lengths, different radii of curvature, and other modifications to accommodate typical HVAC systems 150 .
- the bracket insert 168 may be positioned between the compressor 152 and the refrigerant reservoir 154 based on the distance 174 and/or based on the respective circumferences of the compressor 152 and/or the refrigerant reservoir 154 . Specifically, as mentioned above, the bracket insert 168 may be positioned between the compressor 152 and the refrigerant reservoir 154 and then rotated such that a suitable length of the bracket insert 168 spans the distance 174 and a suitable radii of curvature of the bracket insert 168 abuts the compressor 152 and the refrigerant reservoir 154 . When positioned between the compressor 152 and the refrigerant reservoir 154 , the bracket insert 168 may be wedged therebetween to securely abut the compressor 152 and the refrigerant reservoir 154 .
- FIG. 8 is a perspective view of the bracket insert 168 including a stack of brackets of different lengths that may be positioned between the compressor 152 and the refrigerant reservoir 154 .
- the bracket insert 168 includes a first bracket 330 , a second bracket 332 , a third bracket 334 , and a fourth bracket 336 .
- Each bracket may include a different length 338 to accommodate different distances 174 between the compressor 152 and/or the refrigerant reservoir 154 .
- Each bracket may also include a set of sides 340 that are opposite of one another, where each side of the set of sides 340 may include a particular radius of curvature to fit the corresponding circumference of the compressor 152 or the refrigerant reservoir 154 .
- the lengths 338 and/or radii of curvature for each set of sides 340 may be selected based at least in part on typical distances 174 between and/or respective circumferences of the compressor 152 and/or the refrigerant reservoir 154 .
- the bracket insert 168 may include a different number of brackets and/or include brackets of different shapes than shown in FIG. 8 .
- a rod 344 may extend through each bracket, such that each bracket is rotatably coupled to the rod 344 .
- a desired bracket may be rotated in a direction 346 such that the corresponding length 338 of the desired bracket extends past each width 342 of the other brackets.
- the entire bracket insert 168 may be positioned between the compressor 152 and the refrigerant reservoir 154 , where the selected bracket may be wedged between the compressor 152 and the refrigerant 154 without interference from the other brackets of the bracket insert 168 .
- a clamp may be used to secure the stack of brackets together, such as when the bracket insert 168 is inserted between the compressor 152 and the refrigerant 154 , to block unwanted rotation of the brackets of the bracket insert 168 .
- the clamp may impart a force to compress the brackets together when rotation of the brackets is not desired, and the clamp may release the compressive force when rotation of the brackets is desired, such as to select the suitable bracket to span the distance 174 .
- the bracket inserts 168 of FIGS. 7 and 8 may each include the padding 278 depicted in FIG. 6 to be inserted between the bracket insert 168 and the compressor 152 and/or the refrigerant reservoir 154 . Additionally, as with the bracket insert of FIG. 6 , the bracket inserts 168 of FIGS. 7 and 8 may be formed from a material such as metal, a composite, a polymer, another suitable material, or any combination thereof. It should also be appreciated that, in some embodiments, features of the bracket insert 168 of FIG. 7 may be combined with features of the bracket insert 168 of FIG. 8 , such that a stack of brackets that are shaped similar to the bracket insert 168 of FIG.
- bracket insert 168 may include any appropriate configuration of a bracket or brackets that may be positioned in between the compressor 152 and the refrigerant reservoir 154 , in the manners described above.
- FIG. 9 is a top view schematic of an embodiment of the band 176 .
- the band 176 includes a loop 350 that wraps around the components of the HVAC system 150 to be secured to one another.
- the loop 350 includes a circumference to enclose the components.
- the circumference of the loop 350 is adjusted via an adjuster 178 .
- the adjuster 178 may be a buckle, a clamp, a fastener, a rotary adjuster, another component, or any combination thereof that loosens, tightens, and/or releases the loop 350 to permit adjustment of the size of the circumference of the loop 350 .
- the adjuster 178 may be used to adjust the size of the circumference of the loop 350 to enable secure fastening of the band 176 to the components of the HVAC system 150 , such as the compressor 152 and the refrigerant reservoir 154 .
- FIG. 9 illustrates one adjuster 178 , in additional or alternative embodiments, multiple adjusters 178 may be used.
- the band 176 may be generally flexible and thus, when tightened around the components of the HVAC system 150 , may conform to the components' respective shapes.
- the band 176 may include metal, composite, rubber, woven fabric, plastic, webbing, another suitable material, or any combination thereof to provide the flexibility and strength for implementation with the HVAC system 150 .
- padding 352 may be placed in between the band 176 and the respective component to which the band 176 is secured.
- the padding 352 may be similar to the padding 278 . That is, the padding 352 may include similar flexible material to conform to the shape of the components and may include an adhesive side to adhere to the component and/or the band 176 .
- the padding 352 may be placed where the band 176 is in contact or abutment with the components.
- separate pieces of padding 352 may be positioned at the first section 180 contacting the compressor 152 and the second section 182 abutting the refrigerant reservoir 154 .
- FIG. 10 is a top view of the HVAC system 150 , further illustrating implementation of the damping system 166 with the compressor 152 and the refrigerant reservoir 154 .
- the bracket insert 168 of the damping system 166 is inserted between the compressor 152 and the refrigerant reservoir 154 and is adjusted, such as in the manner described above, to span the distance 174 and may produce or enable forces on components of the HVAC system in directions 400 . That is, the forces bias the compressor 152 and the refrigerant reservoir 154 away from one another.
- the band 176 wraps around the compressor 152 and the refrigerant reservoir 154 and is tightened to produce or enable forces on the components of the HVAC system 150 in the directions 402 .
- the forces bias the compressor 152 and the refrigerant reservoir 154 toward one another.
- the resulting forces are opposite of one another and combine to tighten the compressor 152 and the refrigerant reservoir 154 together. In this manner, relative movement or vibration of the compressor 152 and the refrigerant reservoir 154 is reduced.
- the padding 278 and the padding 352 may be incorporated to relieve stress on the components produced by the respective forces.
- the shape of the compressor 152 and the refrigerant reservoir 154 although illustrated as generally circular in FIGS. 5 and 10 , may be of any other suitable shape. In this manner, the configurations of the band 176 and the bracket insert 168 may adjust to conform to such shapes. As discussed, such adjustments includes adjustments to the shape of the first end 170 , the second end 172 , and/or the loop 350 .
- the damping system 166 is described as including one bracket insert 168 and one band 176 , in additional or alternative embodiments, the damping system 166 includes multiple bracket inserts 168 and multiple bands 176 . In such embodiments, the bracket inserts 168 and the bands 176 may be applied to the same or to different components. As such, the damping system 166 may be applied to more than two components of the HVAC system 150 . The damping system 166 may also incorporate additional components not discussed herein. By way of example, the bracket insert 168 and/or the band 176 may include additional components to enhance their tightening onto the components of the HVAC system 150 .
- a damping system may be implemented to tighten components of the HVAC system, such as a compressor and a refrigerant reservoir to reduce relative movement or vibration of the components.
- the damping system includes a bracket insert configured to be inserted between the components to produce or enable forces to bias the components away from one another.
- the damping system also includes a band wrapped around the components to produce forces to bias the components toward one another. When both the bracket insert and the band are in place and tightened, the forces produced by the bracket insert and the forces produced by the band restrict relative movement of the components and thus, decreases relative vibrations of the components.
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Abstract
Description
- This application claims priority from and the benefit of U.S. Provisional Application Ser. No. 62/682,028, entitled “RELATIVE VIBRATION DAMPING SYSTEM FOR HVAC SYSTEMS”, filed Jun. 7, 2018, which is hereby incorporated by reference in its entirety for all purposes.
- The present disclosure relates generally to heating, ventilation, and air conditioning (HVAC) systems, and specifically, to damping components of HVAC systems.
- This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present disclosure, which are described below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.
- Environmental control systems are utilized in residential, commercial, and industrial environments to control environmental properties, such as temperature and humidity, for occupants of the respective environments. The environmental control system may control the environmental properties through control of an air flow delivered to and ventilated from the environment. For example, an HVAC system may transfer heat between an air flow and refrigerant flowing through the HVAC system. The HVAC system may include several components to facilitate in the heat transfer. It is now recognized that some of the components may vibrate during operation of the HVAC system, which may affect operation of the components.
- A summary of certain embodiments disclosed herein is set forth below. It should be understood that these aspects are presented merely to provide the reader with a brief summary of these certain embodiments and that these aspects are not intended to limit the scope of this disclosure. Indeed, this disclosure may encompass a variety of aspects that may not be set forth below.
- In one embodiment, a heating and cooling system includes a bracket insert configured to be adjustably positioned between a compressor of the heating and cooling system and a refrigerant reservoir of the heating and cooling system. The heating and cooling system further includes an adjustable band configured to be disposed about the compressor and the refrigerant reservoir, wherein the adjustable band is configured to be adjustable to bias the compressor and refrigerant reservoir toward one another.
- In one embodiment, a damping system for a heating and cooling system includes a first bracket that includes a first flange disposed on a first side of the first bracket, a second bracket that includes a second flange disposed on a second side of the second bracket, and an adjustable band configured to be disposed about the compressor and the refrigerant reservoir, where the adjustable band is adjustable to bias the compressor and refrigerant reservoir toward one another. Additionally, the first flange is configured to abut a compressor of the heating and cooling system and the second flange is configured to abut a refrigerant reservoir of the heating and cooling system, where the first bracket and the second bracket are configured to adjustably couple to one another.
- In one embodiment, a heating and cooling system includes a compressor configured to pressurize refrigerant flowing through the heating and cooling system, a refrigerant reservoir configured to be in fluid communication with the compressor and configured to store liquid refrigerant, a bracket assembly that includes a first bracket and a second bracket, and an adjustable band configured to be disposed about the compressor and the refrigerant reservoir. The first bracket includes a first end configured to abut the compressor and the second bracket includes a second end configured to abut the refrigerant reservoir, and the first bracket and the second bracket are configured to be adjustably coupled to one another. Furthermore, the adjustable band is configured to be adjustable to bias the compressor and refrigerant reservoir toward one another.
- Various aspects of this disclosure may be better understood upon reading the following detailed description and upon reference to the drawings in which:
-
FIG. 1 is a schematic of an environmental control for building environmental management that may employ one or more HVAC units, in accordance with an aspect of the present disclosure; -
FIG. 2 is a perspective view of an embodiment of the environmental control system ofFIG. 1 , in accordance with an aspect of the present disclosure; -
FIG. 3 is a schematic of a residential heating and cooling system, in accordance with an aspect of the present disclosure; -
FIG. 4 is a schematic of an embodiment of a vapor compression system that can be used in any of the systems ofFIGS. 1-3 , in accordance with an aspect the present disclosure; -
FIG. 5 is a perspective view of an embodiment of components that may be used in any of the systems ofFIGS. 1-4 including a vibration damping system, in accordance with an aspect the present disclosure; -
FIG. 6 is a perspective view of an embodiment of a bracket insert of the vibration damping system ofFIG. 5 , in accordance with an aspect the present disclosure; -
FIG. 7 is a top view of another embodiment of a bracket insert of the vibration damping system ofFIG. 5 , in accordance with an aspect the present disclosure; -
FIG. 8 is a top view of another embodiment of a bracket insert of the vibration damping system ofFIG. 5 , in accordance with an aspect the present disclosure; -
FIG. 9 is a top view schematic of an embodiment of a band of the vibration damping system ofFIG. 5 , in accordance with an aspect the present disclosure; and -
FIG. 10 is a top view schematic of an embodiment of the vibration damping system ofFIG. 5 , in accordance with an aspect the present disclosure. - One or more specific embodiments will be described below. In an effort to provide a concise description of these embodiments, not all features of an actual implementation are described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
- The present disclosure is directed to heating, ventilating, and air conditioning (HVAC) systems. HVAC systems flow refrigerant through a refrigerant circuit to enable heat exchange between the refrigerant and other fluid flows, such as air flows. The refrigerant circuit includes a compressor configured to pressurize gaseous or vaporous refrigerant into a high pressure and temperature gas or vapor. The high pressure and temperature refrigerant is discharged into a condenser to cool and condense the refrigerant into a liquid, and then the liquid refrigerant flows through an evaporator. In the evaporator, the liquid refrigerant evaporates into a gaseous or vaporous refrigerant again as it exchanges heat with another fluid flow, such as an air flow to be supplied to a conditioned space.
- The HVAC system may also include additional components, such as a refrigerant reservoir. In some embodiments, the refrigerant reservoir is an accumulator configured to block liquid refrigerant from entering the compressor by filtering and storing liquid refrigerant from a mixture of liquid and gaseous refrigerant flowing from the evaporator to the compressor. In additional or alternative embodiments, the refrigerant reservoir may be a compensator configured to store and return refrigerant into the refrigerant circuit based on an operating mode of the HVAC system. That is, the compensator may withdraw refrigerant out of circulation in the refrigerant circuit when the HVAC system, such as a heat pump, is in a heating mode configured to heat a conditioned space serviced by the HVAC system. Furthermore, the compensator may return refrigerant to the refrigerant circuit when the HVAC system is in a cooling mode configured to cool the conditioned space serviced by the HVAC system.
- During operation of the HVAC system, components of the HVAC system may vibrate. For example, the compressor may vibrate, for example, due to operation of a coupled motor. Additionally, the refrigerant reservoir may also vibrate, for example, due to operation of the refrigerant reservoir and/or due to vibration of the compressor propagated to the refrigerant reservoir. The vibration of components of the HVAC system may affect operation of the components, which may decrease a useful life of the HVAC system. In some embodiments, the vibration frequency of the refrigerant reservoir and the vibration frequency of the compressor may interfere with operations of the refrigerant reservoir and the compressor, respectively. In some instances, these vibrations may increase stress at sections of the compressor and/or the refrigerant reservoir, such as at connecting points between the compressor and the refrigerant reservoir.
- Thus, in accordance with certain embodiments of the present disclosure, it is presently recognized that a system to damp components of the HVAC system may enable the components to operate more effectively. Specifically, a damping system to stiffen the components together may increase operating efficiency of the components. In some embodiments, the damping system includes a bracket insert, which may be a single part and/or an assembly that includes multiple parts, configured to be inserted between the components and a band configured to wrap around the components. The combination of the bracket insert and the band tightens and holds the components together to restrict relative movement, and therefore relative vibration, of the components.
- Turning now to the drawings,
FIG. 1 illustrates a heating, ventilating, and air conditioning (HVAC) system for building environmental management that may employ one or more HVAC units. In the illustrated embodiment, abuilding 10 is air conditioned by a system that includes anHVAC unit 12. Thebuilding 10 may be a commercial structure or a residential structure. As shown, theHVAC unit 12 is disposed on the roof of thebuilding 10; however, theHVAC unit 12 may be located in other equipment rooms or areas adjacent thebuilding 10. TheHVAC unit 12 may be a single packaged unit containing other equipment, such as a blower, integrated air handler, and/or auxiliary heating unit. In other embodiments, theHVAC unit 12 may be part of a split HVAC system, such as the system shown inFIG. 3 , which includes anoutdoor HVAC unit 58 and anindoor HVAC unit 56. - The
HVAC unit 12 is an air cooled device that implements a refrigeration cycle to provide conditioned air to thebuilding 10. Specifically, theHVAC unit 12 may include one or more heat exchangers across which an air flow is passed to condition the air flow before the air flow is supplied to the building. In the illustrated embodiment, theHVAC unit 12 is a rooftop unit (RTU) that conditions a supply air stream, such as environmental air and/or a return air flow from thebuilding 10. After theHVAC unit 12 conditions the air, the air is supplied to thebuilding 10 viaductwork 14 extending throughout thebuilding 10 from theHVAC unit 12. For example, theductwork 14 may extend to various individual floors or other sections of thebuilding 10. In certain embodiments, theHVAC unit 12 may be a heat pump that provides both heating and cooling to the building with one refrigeration circuit configured to operate in different modes. In other embodiments, theHVAC unit 12 may include one or more refrigeration circuits for cooling an air stream and a furnace for heating the air stream. - A
control device 16, one type of which may be a thermostat, may be used to designate the temperature of the conditioned air. Thecontrol device 16 also may be used to control the flow of air through theductwork 14. For example, thecontrol device 16 may be used to regulate operation of one or more components of theHVAC unit 12 or other components, such as dampers and fans, within thebuilding 10 that may control flow of air through and/or from theductwork 14. In some embodiments, other devices may be included in the system, such as pressure and/or temperature transducers or switches that sense the temperatures and pressures of the supply air, return air, and so forth. Moreover, thecontrol device 16 may include computer systems that are integrated with or separate from other building control or monitoring systems, and even systems that are remote from thebuilding 10. -
FIG. 2 is a perspective view of an embodiment of theHVAC unit 12. In the illustrated embodiment, theHVAC unit 12 is a single package unit that may include one or more independent refrigeration circuits and components that are tested, charged, wired, piped, and ready for installation. TheHVAC unit 12 may provide a variety of heating and/or cooling functions, such as cooling only, heating only, cooling with electric heat, cooling with dehumidification, cooling with gas heat, or cooling with a heat pump. As described above, theHVAC unit 12 may directly cool and/or heat an air stream provided to thebuilding 10 to condition a space in thebuilding 10. - As shown in the illustrated embodiment of
FIG. 2 , acabinet 24 encloses theHVAC unit 12 and provides structural support and protection to the internal components from environmental and other contaminants. In some embodiments, thecabinet 24 may be constructed of galvanized steel and insulated with aluminum foil faced insulation.Rails 26 may be joined to the bottom perimeter of thecabinet 24 and provide a foundation for theHVAC unit 12. In certain embodiments, therails 26 may provide access for a forklift and/or overhead rigging to facilitate installation and/or removal of theHVAC unit 12. In some embodiments, therails 26 may fit into “curbs” on the roof to enable theHVAC unit 12 to provide air to theductwork 14 from the bottom of theHVAC unit 12 while blocking elements such as rain from leaking into thebuilding 10. - The
HVAC unit 12 includesheat exchangers heat exchangers heat exchangers heat exchangers heat exchangers heat exchanger 28 may function as a condenser where heat is released from the refrigerant to ambient air, and theheat exchanger 30 may function as an evaporator where the refrigerant absorbs heat to cool an air stream. In other embodiments, theHVAC unit 12 may operate in a heat pump mode where the roles of theheat exchangers heat exchanger 28 may function as an evaporator and theheat exchanger 30 may function as a condenser. In further embodiments, theHVAC unit 12 may include a furnace for heating the air stream that is supplied to thebuilding 10. While the illustrated embodiment ofFIG. 2 shows theHVAC unit 12 having two of theheat exchangers HVAC unit 12 may include one heat exchanger or more than two heat exchangers. - The
heat exchanger 30 is located within acompartment 31 that separates theheat exchanger 30 from theheat exchanger 28.Fans 32 draw air from the environment through theheat exchanger 28. Air may be heated and/or cooled as the air flows through theheat exchanger 28 before being released back to the environment surrounding therooftop unit 12. Ablower assembly 34, powered by amotor 36, draws air through theheat exchanger 30 to heat or cool the air. The heated or cooled air may be directed to thebuilding 10 by theductwork 14, which may be connected to theHVAC unit 12. Before flowing through theheat exchanger 30, the conditioned air flows through one ormore filters 38 that may remove particulates and contaminants from the air. In certain embodiments, thefilters 38 may be disposed on the air intake side of theheat exchanger 30 to prevent contaminants from contacting theheat exchanger 30. - The
HVAC unit 12 also may include other equipment for implementing the thermal cycle.Compressors 42 increase the pressure and temperature of the refrigerant before the refrigerant enters theheat exchanger 28. Thecompressors 42 may be any suitable type of compressors, such as scroll compressors, rotary compressors, screw compressors, or reciprocating compressors. In some embodiments, thecompressors 42 may include a pair of hermetic direct drive compressors arranged in adual stage configuration 44. However, in other embodiments, any number of thecompressors 42 may be provided to achieve various stages of heating and/or cooling. As may be appreciated, additional equipment and devices may be included in theHVAC unit 12, such as a solid-core filter drier, a drain pan, a disconnect switch, an economizer, pressure switches, phase monitors, and humidity sensors, among other things. - The
HVAC unit 12 may receive power through aterminal block 46. For example, a high voltage power source may be connected to theterminal block 46 to power the equipment. The operation of theHVAC unit 12 may be governed or regulated by acontrol board 48. Thecontrol board 48 may include control circuitry connected to a thermostat, sensors, and alarms. One or more of these components may be referred to herein separately or collectively as thecontrol device 16. The control circuitry may be configured to control operation of the equipment, provide alarms, and monitor safety switches.Wiring 49 may connect thecontrol board 48 and theterminal block 46 to the equipment of theHVAC unit 12. -
FIG. 3 illustrates a residential heating andcooling system 50, also in accordance with present techniques. The residential heating andcooling system 50 may provide heated and cooled air to a residential structure, as well as provide outside air for ventilation and provide improved indoor air quality (IAQ) through devices such as ultraviolet lights and air filters. In the illustrated embodiment, the residential heating andcooling system 50 is a split HVAC system. In general, aresidence 52 conditioned by a split HVAC system may includerefrigerant conduits 54 that operatively couple theindoor unit 56 to theoutdoor unit 58. Theindoor unit 56 may be positioned in a utility room, an attic, a basement, and so forth. Theoutdoor unit 58 is typically situated adjacent to a side ofresidence 52 and is covered by a shroud to protect the system components and to prevent leaves and other debris or contaminants from entering the unit. Therefrigerant conduits 54 transfer refrigerant between theindoor unit 56 and theoutdoor unit 58, typically transferring primarily liquid refrigerant in one direction and primarily vaporized refrigerant in an opposite direction. - When the system shown in
FIG. 3 is operating as an air conditioner, aheat exchanger 60 in theoutdoor unit 58 serves as a condenser for re-condensing vaporized refrigerant flowing from theindoor unit 56 to theoutdoor unit 58 via one of therefrigerant conduits 54. In these applications, aheat exchanger 62 of the indoor unit functions as an evaporator. Specifically, theheat exchanger 62 receives liquid refrigerant, which may be expanded by an expansion device, and evaporates the refrigerant before returning it to theoutdoor unit 58. - The
outdoor unit 58 draws environmental air through theheat exchanger 60 using a fan 64 and expels the air above theoutdoor unit 58. When operating as an air conditioner, the air is heated by theheat exchanger 60 within theoutdoor unit 58 and exits the unit at a temperature higher than it entered. Theindoor unit 56 includes a blower orfan 66 that directs air through or across theindoor heat exchanger 62, where the air is cooled when the system is operating in air conditioning mode. Thereafter, the air is passed throughductwork 68 that directs the air to theresidence 52. The overall system operates to maintain a desired temperature as set by a system controller. When the temperature sensed inside theresidence 52 is higher than the set point on the thermostat, or the set point plus a small amount, the residential heating andcooling system 50 may become operative to refrigerate additional air for circulation through theresidence 52. When the temperature reaches the set point, or the set point minus a small amount, the residential heating andcooling system 50 may stop the refrigeration cycle temporarily. - The residential heating and
cooling system 50 may also operate as a heat pump. When operating as a heat pump, the roles ofheat exchangers heat exchanger 60 of theoutdoor unit 58 will serve as an evaporator to evaporate refrigerant and thereby cool air entering theoutdoor unit 58 as the air passes over theoutdoor heat exchanger 60. Theindoor heat exchanger 62 will receive a stream of air blown over it and will heat the air by condensing the refrigerant. - In some embodiments, the
indoor unit 56 may include afurnace system 70. For example, theindoor unit 56 may include thefurnace system 70 when the residential heating andcooling system 50 is not configured to operate as a heat pump. Thefurnace system 70 may include a burner assembly and heat exchanger, among other components, inside theindoor unit 56. Fuel is provided to the burner assembly of thefurnace 70 where it is mixed with air and combusted to form combustion products. The combustion products may pass through tubes or piping in a heat exchanger, separate fromheat exchanger 62, such that air directed by theblower 66 passes over the tubes or pipes and extracts heat from the combustion products. The heated air may then be routed from thefurnace system 70 to theductwork 68 for heating theresidence 52. -
FIG. 4 is an embodiment of avapor compression system 72 that can be used in any of the systems described above. Thevapor compression system 72 may circulate a refrigerant through a circuit starting with acompressor 74. The circuit may also include acondenser 76, an expansion valve(s) or device(s) 78, and anevaporator 80. Thevapor compression system 72 may further include acontrol panel 82 that has an analog to digital (A/D)converter 84, amicroprocessor 86, a non-volatile memory 88, and/or aninterface board 90. Thecontrol panel 82 and its components may function to regulate operation of thevapor compression system 72 based on feedback from an operator, from sensors of thevapor compression system 72 that detect operating conditions, and so forth. - In some embodiments, the
vapor compression system 72 may use one or more of a variable speed drive (VSDs) 92, amotor 94, thecompressor 74, thecondenser 76, the expansion valve ordevice 78, and/or theevaporator 80. Themotor 94 may drive thecompressor 74 and may be powered by the variable speed drive (VSD) 92. TheVSD 92 receives alternating current (AC) power having a particular fixed line voltage and fixed line frequency from an AC power source, and provides power having a variable voltage and frequency to themotor 94. In other embodiments, themotor 94 may be powered directly from an AC or direct current (DC) power source. Themotor 94 may include any type of electric motor that can be powered by a VSD or directly from an AC or DC power source, such as a switched reluctance motor, an induction motor, an electronically commutated permanent magnet motor, or another suitable motor. - The
compressor 74 compresses a refrigerant vapor and delivers the vapor to thecondenser 76 through a discharge passage. In some embodiments, thecompressor 74 may be a centrifugal compressor. The refrigerant vapor delivered by thecompressor 74 to thecondenser 76 may transfer heat to a fluid passing across thecondenser 76, such as ambient orenvironmental air 96. The refrigerant vapor may condense to a refrigerant liquid in thecondenser 76 as a result of thermal heat transfer with theenvironmental air 96. The liquid refrigerant from thecondenser 76 may flow through theexpansion device 78 to theevaporator 80. - The liquid refrigerant delivered to the
evaporator 80 may absorb heat from another air stream, such as asupply air stream 98 provided to thebuilding 10 or theresidence 52. For example, thesupply air stream 98 may include ambient or environmental air, return air from a building, or a combination of the two. The liquid refrigerant in theevaporator 80 may undergo a phase change from the liquid refrigerant to a refrigerant vapor. In this manner, theevaporator 38 may reduce the temperature of thesupply air stream 98 via thermal heat transfer with the refrigerant. Thereafter, the vapor refrigerant exits theevaporator 80 and returns to thecompressor 74 by a suction line to complete the cycle. - In some embodiments, the
vapor compression system 72 may further include a reheat coil in addition to theevaporator 80. For example, the reheat coil may be positioned downstream of the evaporator relative to thesupply air stream 98 and may reheat thesupply air stream 98 when thesupply air stream 98 is overcooled to remove humidity from thesupply air stream 98 before thesupply air stream 98 is directed to thebuilding 10 or theresidence 52. - It should be appreciated that any of the features described herein may be incorporated with the
HVAC unit 12, the residential heating andcooling system 50, or other HVAC systems. Additionally, while the features disclosed herein are described in the context of embodiments that directly heat and cool a supply air stream provided to a building or other load, embodiments of the present disclosure may be applicable to other HVAC systems as well. For example, the features described herein may be applied to mechanical cooling systems, free cooling systems, chiller systems, or other heat pump or refrigeration applications. - As noted above, HVAC systems may use components to facilitate heat transfer between a refrigerant and an airflow. For example, an HVAC system uses a compressor to pressurize the refrigerant and a refrigerant reservoir to optionally store refrigerant during operation of the HVAC system. When in operation, such components may vibrate, which may affect performance of the components and result in inefficient operation of the HVAC system. In some instances, vibration of one component may propagate to cause vibration of other components. In accordance with present embodiments, implementing a damping system to components of the HVAC system may decrease vibrations during operation of the HVAC system. For example, the damping system includes a band positioned around the components and a bracket insert positioned between the components. The combination of the band and the bracket insert stiffens the components of the system relative to one another to reduce relative movement and thus, relative vibration of the components. Although the present disclosure focuses primarily on applying the damping system to compressors and refrigerant reservoirs, in other embodiments, the damping system may also be applied to other suitable components of the HVAC system. The damping system may be applied to HVAC systems such as the
HVAC unit 12, the residential heating andcooling system 50, or another HVAC system to damp components within the HVAC system. - To illustrate a system to damp an HVAC system,
FIG. 5 is a perspective view of anHVAC system 150 that includes acompressor 152 and arefrigerant reservoir 154. As illustrated inFIG. 5 , thecompressor 152 and therefrigerant reservoir 154 are located adjacent to one another and are coupled together viatubing 156. Thetubing 156 enables thecompressor 152 and therefrigerant reservoir 154 to be in fluid communication with one another, such that refrigerant may flow between thecompressor 152 and therefrigerant reservoir 154. As mentioned above, in some embodiments, therefrigerant reservoir 154 may be an accumulator configured to store liquid refrigerant to block the liquid refrigerant from entering thecompressor 152. In additional or alternative embodiments, therefrigerant reservoir 154 is a compensator configured to adjust an amount of refrigerant flowing within theHVAC system 150, such as based on an operating mode of theHVAC system 150. However, the damping system disclosed herein may also be used with other components of the HVAC system. - As illustrated in
FIG. 5 , thecompressor 152 and therefrigerant reservoir 154 are upright or positioned substantially vertically, such that abase 158 of thecompressor 152 is coupled to afirst mount 160 and abase 162 of therefrigerant reservoir 154 is coupled to asecond mount 164. For example, the first andsecond mounts compressor 152 andrefrigerant reservoir 154, respectively, to a base plate of an outdoor unit, such asoutdoor unit 58 shown inFIG. 3 . Additionally, the remainder of thecompressor 152 and therefrigerant reservoir 154 may not be coupled to any other mounts. That is, thecompressor 152 and therefrigerant reservoir 154 are coupled to thefirst mount 160 andsecond mount 164, respectively, on one side and the remainder of thecompressor 152 and therefrigerant reservoir 154 may be described as free-standing. Additionally, in between thecompressor 152 and therefrigerant reservoir 154, there may be a generally open space without intervening components of theHVAC system 150. - As will be appreciated, operation of the
HVAC system 150 may cause vibrations of components of theHVAC system 150. For example, thecompressor 152 may vibrate while pressurizing the refrigerant. Vibration of thecompressor 152 may transfer to therefrigerant reservoir 154 via thetubing 156. Thus, therefrigerant reservoir 154 may also vibrate, potentially at a different frequency. Relative vibration of theHVAC system 150 components may affect performance, such as the flow of refrigerant between thecompressor 152 and therefrigerant reservoir 154. To block or reduce such relative vibrations, a dampingsystem 166 may be implemented onto theHVAC system 150. The dampingsystem 166 includes abracket insert 168 positioned in between thecompressor 152 and therefrigerant reservoir 154. When positioned therebetween, afirst end 170 of thebracket insert 168 abuts thecompressor 152, and asecond end 172 of thebracket insert 168 abuts therefrigerant reservoir 154. Thefirst end 170 and thesecond end 172 may be shaped or contoured based on the size, shape, and contour of thecompressor 152 and therefrigerant reservoir 154. For example, in the illustrated embodiment, thecompressor 152 and therefrigerant reservoir 154 are both cylindrical, but thecompressor 152 has a larger circumference than therefrigerant reservoir 154. Thus, thefirst end 170 may be a different shape than thesecond end 172, such as including a radius of curvature larger than a radius of curvature of thesecond end 172. In some embodiments, thebracket insert 168 is adjustable to span adistance 174 between thecompressor 152 and therefrigerant reservoir 154 that may vary from one system to another. Additionally, thebracket insert 168 is positioned at a height above thebase 158 and thebase 162. The height may be based off a height of thecompressor 152 and/or therefrigerant reservoir 154, a position of thecompressor 152 and/or therefrigerant reservoir 154, operation of theHVAC system 150, another suitable parameter, or any combination thereof. - In addition to the
bracket insert 168, the dampingsystem 166 includes aband 176 configured to be positioned around thecompressor 152 and therefrigerant reservoir 154. In some embodiments, theband 176 is adjustable and includes anadjuster 178 to adjust a circumference of theband 176. That is, theband 176 may be adjusted such that afirst section 180 is in suitable contact with thecompressor 152 and asecond section 182 is in suitable contact with therefrigerant reservoir 154. Theband 176 may be a hose clamp, a strap, a belt, or another suitable component that wraps around thecompressor 152 and therefrigerant reservoir 154. In some embodiments, theband 176 may include a flexible material configured to adjust to the respective shapes of thecompressor 152 andrefrigerant reservoir 154. Theband 176 is positioned at a height above thebase 158 and thebase 162. In some embodiments, theband 176 is positioned at a height that is similar to or substantially the same as the height of thebracket insert 168. In this manner, forces generated by theband 176 act against forces produced by thebracket insert 168 and combine to reduce relative movement of thecompressor 152 and therefrigerant reservoir 154 to damp theHVAC system 150. - To further show the
bracket insert 168,FIG. 6 is a perspective view illustrating an embodiment of thebracket insert 168. As illustrated inFIG. 6 , thebracket insert 168 includes afirst plate 250 and asecond plate 252 overlapping with thefirst plate 250. In some embodiments, thesecond plate 252 includes a first row ofholes 254 positioned along afirst side 256 of thesecond plate 252 and a second row ofholes 258 positioned along asecond side 260 of thesecond plate 252. It should be appreciated that the holes in the first row ofholes 254 and the second row ofholes 258 may be positioned in a variety of manners or configurations. In some embodiments, adistance 262 between holes of the first row ofholes 254 is of a different length than adistance 264 between holes of the second row ofholes 258. Additionally, within each row, the holes may be evenly or unevenly spaced. That is, in some embodiments, thedistance 262 may be the same between each hole for the first row ofholes 254, while thedistance 264 may vary between each hole for the second row ofholes 258. Moreover, there is adistance 266 between holes of the first row ofholes 254 and holes of the second row ofholes 258. In some embodiments, thedistance 266 is the same along each row of holes, but in additional or alternative embodiments, thedistance 266 may vary. As an example, certain holes of the first row ofholes 254 may be positioned closer or further to thefirst side 256 than other holes of the first row ofholes 254. Similar positioning of holes of the second row ofholes 258 may also be implemented. AlthoughFIG. 6 illustrates two rows of five holes, in additional or alternative embodiments, there may be any suitable number of holes in each row and the size of each hole may be different within each row. There may also be any number of rows of holes, and the holes in each row may be configured any manner discussed above. It should be appreciated that the holes of thesecond plate 252 may also be configured in similar manners discussed above or in manners not already discussed in this disclosure. - The
first plate 250 also include holes to align with the first row ofholes 254 and the second row ofholes 258 of thesecond plate 252. Aligning the holes of each plate enables thefirst plate 250 to couple with thesecond plate 252 in creating thebracket insert 168 to insert between components of theHVAC system 150. As with the holes of thesecond plate 252, the holes of thefirst plate 250 may also be configured in various manners, including positioned in different rows, at different distances from one another, of different sizes, or in any other configuration not already described. As such, the relative positions of thefirst plate 250 and thesecond plate 252 may be adjusted to align different holes to configure and size thebracket insert 168 for suitable use with the components of theHVAC system 150. For example, the relative position of thefirst plate 250 and thesecond plate 252 may be selected based on the distance between the components and/or the angle of the sections of the components that thefirst plate 250 and thesecond plate 252 are respectively in contact with. To fasten thefirst plate 250 and thesecond plate 252 together,bolts 268 may be inserted through respectively aligned holes of thefirst plate 250 and holes of thesecond plate 252. Thebolts 268 may be tightened via nuts 270. - Although
FIG. 6 illustrates thebolts 268 as being inserted from atop thesecond plate 252 and thenuts 270 positioned to couple onto thebolts 268 below thefirst plate 250, thebolts 268 may also be inserted from underneath thefirst plate 252, and thenuts 270 may couple atop thesecond plate 252. There may also be embodiments where, for a portion of the holes, thebolts 268 insert from above thesecond plate 252 and for a remaining portion of the holes,bolts 268 insert from below thefirst plate 250. The properties of thebolts 268, such as size, pitch, and material, may be based at least in part on parameters such as size of the holes, position of the holes, operation of theHVAC system 150, any other suitable parameter, or any combination thereof. The properties of thebolts 268 may also vary within eachbracket insert 168, such as to fit into holes of different sizes. To facilitate fastening of thefirst plate 250 and thesecond plate 252,washers 272 may be used. For example,washers 272 may be positioned to contact thefirst plate 250, to contact thesecond plate 252, or both. As with thebolts 268, the properties of thewashers 272 may be based at least in part on parameters of components of theHVAC system 150 and/or operation of theHVAC system 150. In order to withstand secure fastening and the operation of theHVAC system 150, thefirst plate 250 and thesecond plate 252 may include materials such as a metal, a composite, a polymer, another suitable material, or any combination thereof. - In certain embodiments, the
bracket insert 168 includes afirst flange 274 located at thefirst end 170 of thefirst plate 250 and asecond flange 276 located at thesecond end 172 of thesecond plate 252. Thefirst flange 274 and thesecond flange 276 increase a surface area for thebracket insert 168 to contact the components of theHVAC system 150. As will be appreciated, the first andsecond flanges bracket insert 168 applied to components when thebracket insert 168 is tightly secured in between the components. The first andsecond flanges bracket insert 168 when it is installed between components of theHVAC system 150. In addition, the shape of thefirst flange 274 and thesecond flange 276 may be selected to accommodate or correspond with the shape of the components of theHVAC system 150, such as including respective radius of curvatures to match the circumferences of thecompressor 152 and therefrigerant reservoir 154. However, in other embodiments, thefirst flange 274 and thesecond flange 276 may be a different shape than the arcuate geometry depicted inFIG. 6 . Furthermore, thefirst flange 274 and/or thesecond flange 276, rather than respectively extending upwards from thefirst plate 250 and thesecond plate 252, may extend downwards, or both upwards and downwards. Thefirst flange 274 and/or thesecond flange 276 may also extend past a side, such as thefirst side 256 and/or thesecond side 260. The configuration of thefirst flange 274 and thesecond flange 276 may differ from one another and may be based at least in part on geometry of the components of theHVAC system 150 and/or operation of theHVAC system 150. Thefirst flange 274 and thesecond flange 276 may be formed via bending of the respectivefirst plate 250 andsecond plate 252, but in additional or alternate embodiments, thefirst flange 274 and/or thesecond flange 276 are separate components that are coupled to thefirst plate 250 and thesecond plate 252, such as via welding, fastening, riveting, gluing, another suitable method, or any combination thereof. - To further distribute and/or reduce stress or forces on the components of the
HVAC system 150, padding 278 may be placed in between each respective flange and the component abutted by the flange. Thepadding 278 may include material such as rubber, sponge, foam, fabric, another suitable material, or any combination thereof to absorb loads or forces when thebracket insert 168 is installed between the components of theHVAC system 150. Thepadding 278 may also include an adhesive 280 to secure contact between thebracket insert 168 and the components. The adhesive 280 may be on one side of thepadding 278, such as in contact with the component or in contact with thebracket insert 168, or the adhesive 280 may be on both sides of thepadding 278. - Although
FIG. 6 illustrates thefirst plate 250 and thesecond plate 252 as having a generally similar rectangle shape, in additional or alternative embodiments, the shape of thefirst plate 250 may be different than the shape of thesecond plate 252. Additionally, in certain embodiments, thefirst plate 250 may be placed atop thesecond plate 252. In additional or alternative embodiments, thefirst plate 250 may be positioned in different manners, such as on a side of thesecond plate 252. Furthermore, although the present disclosure discusses usingbolts 268 andnuts 270 to fasten thefirst plate 250 with thesecond plate 252, other methods of fastening may be used, such as welding, gluing, riveting, clamping, hinging, another suitable method, or any combination thereof. As such, thebracket insert 168 may be limited in adjustments. Alternatively, other methods to adjust the positioning of thefirst plate 250 and thesecond plate 252 may be implemented, such as sliding, pivoting, rotating, or any other method to move thefirst plate 250 with respect to thesecond plate 252. - As previously mentioned, certain embodiments of the
bracket insert 168 may include a single part rather than an assembly of multiple parts.FIG. 7 is a top view of an embodiment of thebracket insert 168, which is a single part configured to be positioned between thecompressor 152 and therefrigerant reservoir 154. More particularly, the illustratedbracket insert 168 may be positioned between thecompressor 152 and therefrigerant reservoir 154 in a number of different orientations to accommodate different distances betweencompressors 152 andrefrigerant reservoirs 154, different sizes ofcompressors 152 andrefrigerant reservoirs 154, and so forth. To this end, thebracket insert 168 includes afirst length 300, asecond length 302, and athird length 304. In some embodiments, thefirst length 300, thesecond length 302, and thethird length 304 may be different than one another. For example, thefirst length 300 may be longer than thesecond length 302 and thethird length 304, while thesecond length 302 and thethird length 304 may be approximately the same length. As illustrated, thelengths bracket insert 168 may be positioned between thecompressor 152 and therefrigerant reservoir 154 and rotated to position a desired length therebetween. - In addition, each length of the
bracket insert 168 may include a set of sides positioned generally opposite of one another. Each side of the set of sides may include a particular radius of curvature such that the side may abut thecompressor 152 or therefrigerant reservoir 154. That is, thefirst length 300 may include a first set ofsides 306 with a first radius of curvature, thesecond length 302 may include a second set ofsides 308 with a second radius of curvature, and thethird length 304 may include a third set of sides with a third radius of curvature. In some embodiments, the third radius of curvature may be greater than the second radius of curvature, while the second radius of curvature may be approximately the same as the first radius of curvature. However, it should be understood that any appropriate combination of lengths and radii of curvature may be included with thebracket 168 to accommodatevarious distances 174 between thecompressor 152 and therefrigerant reservoir 154 and/or to accommodate respective circumferences of thecompressor 152 and/or therefrigerant reservoir 154. Additionally, in some embodiments, different sides of a single side of sides may include different radii of curvature. For example, one side of the first set ofsides 306 may include a particular radius of curvature and the other side of the first set ofsides 306 may include another radius of curvature. In general, thebracket 168 may include additional lengths, differently shaped lengths, different radii of curvature, and other modifications to accommodatetypical HVAC systems 150. - The
bracket insert 168 may be positioned between thecompressor 152 and therefrigerant reservoir 154 based on thedistance 174 and/or based on the respective circumferences of thecompressor 152 and/or therefrigerant reservoir 154. Specifically, as mentioned above, thebracket insert 168 may be positioned between thecompressor 152 and therefrigerant reservoir 154 and then rotated such that a suitable length of thebracket insert 168 spans thedistance 174 and a suitable radii of curvature of thebracket insert 168 abuts thecompressor 152 and therefrigerant reservoir 154. When positioned between thecompressor 152 and therefrigerant reservoir 154, thebracket insert 168 may be wedged therebetween to securely abut thecompressor 152 and therefrigerant reservoir 154. - Another embodiment of the
bracket insert 168 is depicted inFIG. 8 , which is a perspective view of thebracket insert 168 including a stack of brackets of different lengths that may be positioned between thecompressor 152 and therefrigerant reservoir 154. As depicted inFIG. 8 , thebracket insert 168 includes afirst bracket 330, asecond bracket 332, a third bracket 334, and afourth bracket 336. Each bracket may include adifferent length 338 to accommodatedifferent distances 174 between thecompressor 152 and/or therefrigerant reservoir 154. Each bracket may also include a set ofsides 340 that are opposite of one another, where each side of the set ofsides 340 may include a particular radius of curvature to fit the corresponding circumference of thecompressor 152 or therefrigerant reservoir 154. As with thebracket insert 168 illustrated inFIG. 7 , thelengths 338 and/or radii of curvature for each set ofsides 340 may be selected based at least in part ontypical distances 174 between and/or respective circumferences of thecompressor 152 and/or therefrigerant reservoir 154. Thus, it should be understood that thebracket insert 168 may include a different number of brackets and/or include brackets of different shapes than shown inFIG. 8 . - In some embodiments, a
rod 344 may extend through each bracket, such that each bracket is rotatably coupled to therod 344. As such, when thebracket insert 168 is positioned between thecompressor 152 and therefrigerant reservoir 154, a desired bracket may be rotated in adirection 346 such that thecorresponding length 338 of the desired bracket extends past each width 342 of the other brackets. In this manner, theentire bracket insert 168 may be positioned between thecompressor 152 and therefrigerant reservoir 154, where the selected bracket may be wedged between thecompressor 152 and the refrigerant 154 without interference from the other brackets of thebracket insert 168. In some embodiments, a clamp may be used to secure the stack of brackets together, such as when thebracket insert 168 is inserted between thecompressor 152 and the refrigerant 154, to block unwanted rotation of the brackets of thebracket insert 168. Specifically, the clamp may impart a force to compress the brackets together when rotation of the brackets is not desired, and the clamp may release the compressive force when rotation of the brackets is desired, such as to select the suitable bracket to span thedistance 174. - The bracket inserts 168 of
FIGS. 7 and 8 may each include thepadding 278 depicted inFIG. 6 to be inserted between thebracket insert 168 and thecompressor 152 and/or therefrigerant reservoir 154. Additionally, as with the bracket insert ofFIG. 6 , the bracket inserts 168 ofFIGS. 7 and 8 may be formed from a material such as metal, a composite, a polymer, another suitable material, or any combination thereof. It should also be appreciated that, in some embodiments, features of thebracket insert 168 ofFIG. 7 may be combined with features of thebracket insert 168 ofFIG. 8 , such that a stack of brackets that are shaped similar to thebracket insert 168 ofFIG. 7 are rotatably coupled to therod 344 to enable use of thebracket 168 with different possible configurations ofHVAC systems 150. Generally, it should be understood that thebracket insert 168 may include any appropriate configuration of a bracket or brackets that may be positioned in between thecompressor 152 and therefrigerant reservoir 154, in the manners described above. - Another component of the damping
assembly 166 is illustrated inFIG. 9 , which is a top view schematic of an embodiment of theband 176. Theband 176 includes aloop 350 that wraps around the components of theHVAC system 150 to be secured to one another. Theloop 350 includes a circumference to enclose the components. As mentioned, in some embodiments, the circumference of theloop 350 is adjusted via anadjuster 178. Theadjuster 178 may be a buckle, a clamp, a fastener, a rotary adjuster, another component, or any combination thereof that loosens, tightens, and/or releases theloop 350 to permit adjustment of the size of the circumference of theloop 350. In other words, theadjuster 178 may be used to adjust the size of the circumference of theloop 350 to enable secure fastening of theband 176 to the components of theHVAC system 150, such as thecompressor 152 and therefrigerant reservoir 154. AlthoughFIG. 9 illustrates oneadjuster 178, in additional or alternative embodiments,multiple adjusters 178 may be used. - As mentioned, the
band 176 may be generally flexible and thus, when tightened around the components of theHVAC system 150, may conform to the components' respective shapes. By way of example, theband 176 may include metal, composite, rubber, woven fabric, plastic, webbing, another suitable material, or any combination thereof to provide the flexibility and strength for implementation with theHVAC system 150. To further secure theband 176 to each component, padding 352 may be placed in between theband 176 and the respective component to which theband 176 is secured. Thepadding 352 may be similar to thepadding 278. That is, thepadding 352 may include similar flexible material to conform to the shape of the components and may include an adhesive side to adhere to the component and/or theband 176. Thepadding 352 may be placed where theband 176 is in contact or abutment with the components. For example, separate pieces ofpadding 352 may be positioned at thefirst section 180 contacting thecompressor 152 and thesecond section 182 abutting therefrigerant reservoir 154. -
FIG. 10 is a top view of theHVAC system 150, further illustrating implementation of the dampingsystem 166 with thecompressor 152 and therefrigerant reservoir 154. Thebracket insert 168 of the dampingsystem 166 is inserted between thecompressor 152 and therefrigerant reservoir 154 and is adjusted, such as in the manner described above, to span thedistance 174 and may produce or enable forces on components of the HVAC system indirections 400. That is, the forces bias thecompressor 152 and therefrigerant reservoir 154 away from one another. Theband 176 wraps around thecompressor 152 and therefrigerant reservoir 154 and is tightened to produce or enable forces on the components of theHVAC system 150 in thedirections 402. That is, the forces bias thecompressor 152 and therefrigerant reservoir 154 toward one another. As such, the resulting forces are opposite of one another and combine to tighten thecompressor 152 and therefrigerant reservoir 154 together. In this manner, relative movement or vibration of thecompressor 152 and therefrigerant reservoir 154 is reduced. - Additionally, the
padding 278 and thepadding 352 may be incorporated to relieve stress on the components produced by the respective forces. It should be appreciated that the shape of thecompressor 152 and therefrigerant reservoir 154, although illustrated as generally circular inFIGS. 5 and 10 , may be of any other suitable shape. In this manner, the configurations of theband 176 and thebracket insert 168 may adjust to conform to such shapes. As discussed, such adjustments includes adjustments to the shape of thefirst end 170, thesecond end 172, and/or theloop 350. - Although the damping
system 166 is described as including onebracket insert 168 and oneband 176, in additional or alternative embodiments, the dampingsystem 166 includes multiple bracket inserts 168 andmultiple bands 176. In such embodiments, the bracket inserts 168 and thebands 176 may be applied to the same or to different components. As such, the dampingsystem 166 may be applied to more than two components of theHVAC system 150. The dampingsystem 166 may also incorporate additional components not discussed herein. By way of example, thebracket insert 168 and/or theband 176 may include additional components to enhance their tightening onto the components of theHVAC system 150. - As set forth above, embodiments of the present disclosure may provide one or more technical effects useful in the operation of HVAC systems. For example, a damping system may be implemented to tighten components of the HVAC system, such as a compressor and a refrigerant reservoir to reduce relative movement or vibration of the components. The damping system includes a bracket insert configured to be inserted between the components to produce or enable forces to bias the components away from one another. The damping system also includes a band wrapped around the components to produce forces to bias the components toward one another. When both the bracket insert and the band are in place and tightened, the forces produced by the bracket insert and the forces produced by the band restrict relative movement of the components and thus, decreases relative vibrations of the components. The technical effects and technical problems in the specification are examples and are not limiting. It should be noted that the embodiments described in the specification may have other technical effects and can solve other technical problems.
- While only certain features and embodiments of the disclosure have been illustrated and described, many modifications and changes may occur to those skilled in the art, such as variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, and the like, without materially departing from the novel teachings and advantages of the subject matter recited in the claims. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure. Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not have been described, such as those unrelated to the presently contemplated best mode of carrying out the disclosed embodiments, or those unrelated to enabling the claimed embodiments. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/040,298 US20190376499A1 (en) | 2018-06-07 | 2018-07-19 | Relative vibration damping system for hvac systems |
Applications Claiming Priority (2)
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US201862682028P | 2018-06-07 | 2018-06-07 | |
US16/040,298 US20190376499A1 (en) | 2018-06-07 | 2018-07-19 | Relative vibration damping system for hvac systems |
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US20190376499A1 true US20190376499A1 (en) | 2019-12-12 |
Family
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US16/040,298 Abandoned US20190376499A1 (en) | 2018-06-07 | 2018-07-19 | Relative vibration damping system for hvac systems |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539737A (en) * | 1983-05-20 | 1985-09-10 | Licentia Patent-Verwaltungs-Gmbh | Method for installing a motor-compressor unit in a cooling device |
US4676473A (en) * | 1985-06-03 | 1987-06-30 | Truckers Comfort Systems, Inc. | Compressor mounting bracket |
US7386991B2 (en) * | 2002-09-10 | 2008-06-17 | Lg Electronics Inc. | Hermetic compressor |
US20120167888A1 (en) * | 2010-12-30 | 2012-07-05 | Brenton Taylor | Advanced portable oxygen concentrator |
US20140216094A1 (en) * | 2011-09-02 | 2014-08-07 | Daikin Industries, Ltd. | Outdoor unit |
US8950208B2 (en) * | 2010-12-29 | 2015-02-10 | Lg Electronics Inc. | Outdoor unit for air conditioner |
EP2977692A1 (en) * | 2014-07-23 | 2016-01-27 | Mitsubishi Heavy Industries, Ltd. | Compressor system and air conditioner including the same |
-
2018
- 2018-07-19 US US16/040,298 patent/US20190376499A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539737A (en) * | 1983-05-20 | 1985-09-10 | Licentia Patent-Verwaltungs-Gmbh | Method for installing a motor-compressor unit in a cooling device |
US4676473A (en) * | 1985-06-03 | 1987-06-30 | Truckers Comfort Systems, Inc. | Compressor mounting bracket |
US7386991B2 (en) * | 2002-09-10 | 2008-06-17 | Lg Electronics Inc. | Hermetic compressor |
US8950208B2 (en) * | 2010-12-29 | 2015-02-10 | Lg Electronics Inc. | Outdoor unit for air conditioner |
US20120167888A1 (en) * | 2010-12-30 | 2012-07-05 | Brenton Taylor | Advanced portable oxygen concentrator |
US20140216094A1 (en) * | 2011-09-02 | 2014-08-07 | Daikin Industries, Ltd. | Outdoor unit |
EP2977692A1 (en) * | 2014-07-23 | 2016-01-27 | Mitsubishi Heavy Industries, Ltd. | Compressor system and air conditioner including the same |
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