US20140331705A1 - Hydraulic Transport Refrigeration System - Google Patents

Hydraulic Transport Refrigeration System Download PDF

Info

Publication number
US20140331705A1
US20140331705A1 US14/366,317 US201214366317A US2014331705A1 US 20140331705 A1 US20140331705 A1 US 20140331705A1 US 201214366317 A US201214366317 A US 201214366317A US 2014331705 A1 US2014331705 A1 US 2014331705A1
Authority
US
United States
Prior art keywords
compressor
refrigeration system
transport refrigeration
coupled
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/366,317
Other languages
English (en)
Inventor
John T. Steele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrier Corp
Original Assignee
Carrier Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Priority to US14/366,317 priority Critical patent/US20140331705A1/en
Publication of US20140331705A1 publication Critical patent/US20140331705A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/20—Refrigerated goods vehicles
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003—Transport containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00435—Driving arrangements for parts of a vehicle air-conditioning fluid or pneumatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3232—Cooling devices using compression particularly adapted for load transporting vehicles
    • 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
    • F25B49/022—Compressor control arrangements

Definitions

  • Embodiments of the invention relate generally to transport refrigeration, and more particularly to a hydraulic transport refrigeration system.
  • a transport refrigeration system includes an engine; a hydraulic pump driven by the engine; a supply line coupled to an output of the pump; a supply control valve coupled to the supply line; and a refrigerant compressor coupled to the supply control valve through a compressor supply line, the refrigerant compressor speed being responsive to fluid flow in the compressor supply line.
  • FIG. 1 depicts a hydraulic transport refrigeration system in exemplary embodiments
  • FIG. 2 depicts mounting of the transport refrigeration system of FIG. 1 to a trailer
  • FIG. 3 depicts an exemplary semi-hermetic compressor for use in the transport refrigeration system.
  • FIG. 1 depicts a hydraulic powered transport refrigeration system 100 in exemplary embodiments.
  • the transport refrigeration system 100 includes an engine 102 that drives a pump 104 .
  • Pump 104 provides hydraulic fluid to components of the transport refrigeration system 100 .
  • Engine 102 may be a standalone engine (gas or diesel) or may be the engine of the vehicle directly driving pump 104 through, for example, a flywheel.
  • engine 102 may be a combination of a standalone engine and the engine of the vehicle operating in conjunction. This allows the run time of the standalone engine to be reduced, particularly during periods when the vehicle engine has extra capacity (e.g., vehicle idling).
  • a supply line 106 from an output of pump 104 provides fluid to supply control valve 108 .
  • Supply control valve 108 is fluidly coupled to a high-pressure accumulator 110 , motor 112 and compressor 114 .
  • Compressor 114 is coupled to supply control valve 108 by a compressor supply line 115 . It is understood that multiple supply control valves may be used, each coupled to an individual system component.
  • Supply line 106 may be coupled to a manifold, with several supply control valves independently controlled by controller 116 as described herein.
  • Motor 112 drives a fan shaft 113 for turning a fan (e.g., evaporator fan, condenser fan) in the transport refrigeration system 100 .
  • a fan e.g., evaporator fan, condenser fan
  • Only one motor 112 is shown, but it is understood that multiple motors 112 may be used, each for a respective system component. Further, a single motor 112 may be coupled to multiple fans, pumps, etc.
  • a controller 116 receives a number of input signals 118 indicative of the operational status of the transport refrigeration system 100 and adjusts supply control valve 108 accordingly.
  • Input signals 118 may represent parameters such a pressure, temperature, speed, etc. and are generated by sensors within transport refrigeration system 100 .
  • controller 116 diverts fluid to high-pressure accumulator 110 to store fluid in a pressurized state.
  • controller 116 can direct fluid from the high pressure accumulator 110 to motor 112 and compressor 114 . This arrangement allows the compressor 114 speed to be independent of engine 102 speed.
  • Controller 116 may be implemented using a general-purpose processor executing software instructions to perform the steps described herein. Alternatively, controller 116 may be implemented in hardware, or with a combination of hardware and software.
  • Motor 112 and compressor 114 are fluidly coupled to a return control valve 120 .
  • Compressor 114 is coupled to return control valve 120 by a compressor return line 117 .
  • Return control valve 120 is coupled to an input of pump 104 via a return line 122 and is coupled to a low-pressure reservoir 124 .
  • Controller 116 controls the return control valve 120 in response to input signals 118 indicative of the operational status of the transport refrigeration system 100 . For example, under periods of light load on the transport refrigeration system 100 , return control valve 120 diverts excess fluid to reservoir 124 . It is understood that multiple return control valves may be used, each coupled to an individual system component.
  • compressor 114 is a hermetic, hydraulically driven compressor. Fluid from the supply control valve 108 drives the compressor and is returned to pump 104 through return control valve 120 .
  • the pump 104 and compressor 114 are encased together in a common housing preventing loss of refrigerant that is typical in open drive systems.
  • FIG. 2 illustrates exemplary mounting of the transport refrigeration system 100 to a trailer 150 .
  • the high-pressure accumulator 110 and the low pressure reservoir 124 are mounted to the underside of the trailer 150 .
  • the remaining components of transport refrigeration system 100 may be mounted on a front face of trailer 150 .
  • the evaporator coil and evaporator fan (not show) may be positioned within trailer 150 as known in the art.
  • the embodiment of FIG. 1 provides a hydraulic hybrid transport refrigeration system 100 that improves efficiency.
  • the high-pressure accumulator 110 stores excess fluid pressure to drive system components. By storing the fluid pressure, engine 102 need not run, at least part of the time, when under light loads. Engine power may also be supplemented during high load transients such as during starts of the compressor 114 , allowing a smaller engine 102 to be used. Additional savings would result as the engine could be shut down under light load and the system ran off the accumulated energy via the accumulator 110 . Other savings may include reduced total cost of ownership of the unit, reduced noise, reduced weight, improved reliability of the compressor, design latitude for fan designs, removal of belts typically used for fans, design latitude for engine power/speed as well as component driven speed. In addition, variable pitch pumps and motors can be used as well as simple regulators to control speeds of fan, compressor, and other devices.
  • FIG. 3 depicts an exemplary semi-hermetic compressor 200 for use in the transport refrigeration system.
  • Compressor 200 includes a casing 202 housing elements of the compressor.
  • a hydraulic compressor motor 204 is positioned in a chamber 206 of casing 202 .
  • Compressor supply line 115 is coupled to a compressor control valve 210 .
  • Compressor control valve 210 is controlled by controller 116 and controls the flow of fluid to compressor motor 204 .
  • Compressor control valve 210 may divert some fluid to compressor return line 117 via a bypass line 212 . This allows the compressor speed to be controlled independently of engine speed. Fluid returned from the compressor motor 204 is filtered at filter 214 and then provided to compressor return line 117 .
  • Refrigerant from suction port 216 is drawn into compression mechanism 220 of compressor 200 , where the refrigerant is compressed and output through discharge port 222 .
  • the compressor of FIG. 3 is a reciprocating compressor, but other types of compressors may be used.
  • An oil separator 224 may be positioned in fluid communication with the discharge port 222 .
  • the oil separator 224 is fluidly coupled to the compressor return line 117 to return oil to the return control valve 120 .
  • the shaft of the motor 204 is not exposed to atmosphere, but rather to compressor internal pressure. This provides for better compressor vacuum and better performance. Also, any leaks in the seal around the shaft of motor 204 do not result in a loss of refrigerant.
  • the fluid in the compressor supply line 115 that drives compressor motor 204 may be the same oil used to lubricate the compressor. If motor 204 leaks fluid, the leaked fluid can re-enter the compression mechanism 220 through an oil check valve 226 positioned between chamber 206 and compression mechanism 220 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US14/366,317 2011-12-19 2012-12-13 Hydraulic Transport Refrigeration System Abandoned US20140331705A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/366,317 US20140331705A1 (en) 2011-12-19 2012-12-13 Hydraulic Transport Refrigeration System

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161577126P 2011-12-19 2011-12-19
PCT/US2012/069446 WO2013096083A1 (fr) 2011-12-19 2012-12-13 Système de réfrigération de transport hydraulique
US14/366,317 US20140331705A1 (en) 2011-12-19 2012-12-13 Hydraulic Transport Refrigeration System

Publications (1)

Publication Number Publication Date
US20140331705A1 true US20140331705A1 (en) 2014-11-13

Family

ID=47501470

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/366,317 Abandoned US20140331705A1 (en) 2011-12-19 2012-12-13 Hydraulic Transport Refrigeration System

Country Status (3)

Country Link
US (1) US20140331705A1 (fr)
EP (1) EP2794347B1 (fr)
WO (1) WO2013096083A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017030954A1 (fr) * 2015-08-19 2017-02-23 Caterpillar Global Mining Equipment Llc Accessoires entraînés à partir d'un accumulateur

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196595A (en) * 1976-01-29 1980-04-08 Dunham-Bush, Inc. Integrated thermal solar heat pump system
US4257795A (en) * 1978-04-06 1981-03-24 Dunham-Bush, Inc. Compressor heat pump system with maximum and minimum evaporator ΔT control
US5226294A (en) * 1992-04-28 1993-07-13 Thermo King Corporation Compressor arrangement suitable for transport refrigeration systems
US5287708A (en) * 1990-09-28 1994-02-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Car air conditioner with a hydraulically driven refrigerant compressor
US5741120A (en) * 1995-06-07 1998-04-21 Copeland Corporation Capacity modulated scroll machine
US5794734A (en) * 1993-10-01 1998-08-18 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Method and apparatus for supplying driving energy to vehicle subassemblies
US6357248B1 (en) * 1999-04-28 2002-03-19 Thermo King Corporation Compact transport temperature control unit
US20040200230A1 (en) * 2004-05-28 2004-10-14 Eugene Holt Hydraulic power unit for a refrigeration system
US20080060857A1 (en) * 2006-09-12 2008-03-13 Parker-Hannifin System for operating a hydraulically actuated device
US7614242B1 (en) * 2004-11-23 2009-11-10 Carlos Quesada Saborio Transport refrigeration system
US20100154449A1 (en) * 2008-12-24 2010-06-24 Stover Jr A Blair Regenerative Electric Drive Refrigerated Unit
US7854136B2 (en) * 2005-08-09 2010-12-21 Carrier Corporation Automated drive for fan and refrigerant system
US20110219797A1 (en) * 2007-08-17 2011-09-15 Sanden Corporation Capacity Control System for Variable Capacity Compressor and Display Device for the System
WO2011112663A2 (fr) * 2010-03-09 2011-09-15 U.S. Environmental Protection Agency Véhicule à hybridation hydraulique avec fonctionnement hydrostatique sûr et efficace
US20150165864A1 (en) * 2012-06-19 2015-06-18 Thermo King Corporation Transportation refrigeration bulkhead
US20160272048A1 (en) * 2013-11-04 2016-09-22 Carrier Corporation Kinetic Energy Hybrid System for Transport Refrigeration
US20160320114A1 (en) * 2013-12-26 2016-11-03 Sanden Holdings Corporation Flow rate measuring device and variable displacement compressor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2174078A1 (fr) 2007-07-06 2010-04-14 Carrier Corporation Alimentation électrique hybride en série de réfrigération de transport

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196595A (en) * 1976-01-29 1980-04-08 Dunham-Bush, Inc. Integrated thermal solar heat pump system
US4257795A (en) * 1978-04-06 1981-03-24 Dunham-Bush, Inc. Compressor heat pump system with maximum and minimum evaporator ΔT control
US5287708A (en) * 1990-09-28 1994-02-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Car air conditioner with a hydraulically driven refrigerant compressor
US5226294A (en) * 1992-04-28 1993-07-13 Thermo King Corporation Compressor arrangement suitable for transport refrigeration systems
US5794734A (en) * 1993-10-01 1998-08-18 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Method and apparatus for supplying driving energy to vehicle subassemblies
US5741120A (en) * 1995-06-07 1998-04-21 Copeland Corporation Capacity modulated scroll machine
US6357248B1 (en) * 1999-04-28 2002-03-19 Thermo King Corporation Compact transport temperature control unit
US20040200230A1 (en) * 2004-05-28 2004-10-14 Eugene Holt Hydraulic power unit for a refrigeration system
US7614242B1 (en) * 2004-11-23 2009-11-10 Carlos Quesada Saborio Transport refrigeration system
US7854136B2 (en) * 2005-08-09 2010-12-21 Carrier Corporation Automated drive for fan and refrigerant system
US20080060857A1 (en) * 2006-09-12 2008-03-13 Parker-Hannifin System for operating a hydraulically actuated device
US20110219797A1 (en) * 2007-08-17 2011-09-15 Sanden Corporation Capacity Control System for Variable Capacity Compressor and Display Device for the System
US20100154449A1 (en) * 2008-12-24 2010-06-24 Stover Jr A Blair Regenerative Electric Drive Refrigerated Unit
WO2011112663A2 (fr) * 2010-03-09 2011-09-15 U.S. Environmental Protection Agency Véhicule à hybridation hydraulique avec fonctionnement hydrostatique sûr et efficace
US20150165864A1 (en) * 2012-06-19 2015-06-18 Thermo King Corporation Transportation refrigeration bulkhead
US20160272048A1 (en) * 2013-11-04 2016-09-22 Carrier Corporation Kinetic Energy Hybrid System for Transport Refrigeration
US20160320114A1 (en) * 2013-12-26 2016-11-03 Sanden Holdings Corporation Flow rate measuring device and variable displacement compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017030954A1 (fr) * 2015-08-19 2017-02-23 Caterpillar Global Mining Equipment Llc Accessoires entraînés à partir d'un accumulateur

Also Published As

Publication number Publication date
WO2013096083A1 (fr) 2013-06-27
EP2794347A1 (fr) 2014-10-29
EP2794347B1 (fr) 2020-02-05

Similar Documents

Publication Publication Date Title
US10480834B2 (en) Refrigerant cooling and lubrication system
EP1941219B1 (fr) Système frigorifique avec composants à modulation de largeur d'impulsions et compresseur à vitesse variable
US9212601B2 (en) Device and vehicle or production machine
US20080196445A1 (en) Variable Speed Compressor Motor Control for Low Speed Operation
US20130298594A1 (en) Thermodynamic system provided with a plurality of compressors
KR20120020825A (ko) 엔진 유압 및 유량 제어 시스템 및 그의 제어 방법
JP6761799B2 (ja) 流体動力学的な流体クラッチを備えた多段式の圧縮機システム及び圧縮機システムの調整方法
US9903468B2 (en) Hydraulic pressure supply system of automatic transmission
EP2059679B1 (fr) Système de compresseur d'air à piston réciprocant sans huile avec étranglement d'admission
EP1952028A1 (fr) Compresseur de fluide avec palier aérostatique, système de commande d'un compresseur avec palier aérostatique et procédé de commande d'un compresseur avec palier aérostatique
US20070140866A1 (en) Oil-injection screw compressor
CN110520603B (zh) 用于控制燃烧式发动机中的油泵的油压的方法和油压装置
CN101307754A (zh) 多级气体压缩装置
US20140331705A1 (en) Hydraulic Transport Refrigeration System
KR101966650B1 (ko) 고속 고효율 터보 공기압축기
EP2762803B1 (fr) Dispositif de compression à deux étapes et dispositif de refroidissement/climatisation d'air l'utilisant
US11994138B2 (en) Gas compressor with a plurality of air realease systems each having an air release valve and an air regulating valve
EP2035758B1 (fr) Mécanisme de réfrigération
CN108035880B (zh) 一种变转速变排量多转子压缩机及其变排量控制方法
CN112197453B (zh) 压缩机、双压缩机串联热泵机组及其控制方法
US20100193294A1 (en) Air Compressor Pre-Lubrication System
CN207212924U (zh) 轴承部件及具有其的压缩机、制冷装置
CN109113993A (zh) 一种卧式压缩机
CN112128103B (zh) 旋转压缩机和制冷循环系统
KR20120121370A (ko) 내연기관 구동식 유압기계 및 이를 위한 공기과급기

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION