| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Freezer | JP2004150690 | 2004-05-20 | JP2005331183A | 2005-12-02 | MIZUTANI YASUOKI; SUGIE HIROYUKI; NOMURA TOMOHITO; MATSUO KAZUNORI; TAKEUCHI SAKI |
| PROBLEM TO BE SOLVED: To provide a freezer which automatically eliminates the clogging of an expansion mechanism. SOLUTION: A bypass pipe 18 for a hot gas is branched from the side of a discharge opening of a compressor 11, connected in the vicinity of an exit of an expansion valve 13, and provided with a solenoid valve 19 in the midway. A temperature sensor 21 which detects an evaporation temperature of a refrigerant is provided in the vicinity of an entrance of an evaporator 14, and is connected to the side of an input of a control device 20 which controls opening/closing of the solenoid valve 19. The evaporation temperature of the refrigerant is detected during cooling operation, and, when the detected temperature is not higher than a predetermined temperature, it is determined that the expansion valve 13 is clogging up, and then the solenoid valve 19 is opened for a predetermined time. Thus, the hot gas discharged from the compressor 11 passes through the bypass pipe 18 to the side of the exit of the expansion valve 13 so that the expansion valve 13 is heated. As a result of this, the contamination accumulated in the expansion valve 13, especially, deposited and appearing in a lower temperature part is redissolved in the refrigerant or the like to remove such clogging. COPYRIGHT: (C)2006,JPO&NCIPI | ||||||
| 102 | Capillary, porous body, decompression device, and refrigerant circuit type refrigerating device | JP2003422647 | 2003-12-19 | JP2005180802A | 2005-07-07 | TAIRA SHIGEJI; KURODA TARO |
| PROBLEM TO BE SOLVED: To provide a decompression device that is more excellent in resistance to adhesion of impurities than decompression devices having a coating layer made of a homopolymer or a polymer blend. SOLUTION: A capillary 500 is for reducing the pressure of refrigerant in a refrigerant circuit type refrigerating device 220 in which fluid is either cooled or heated by use of exothermic or endothermic phenomena that occur during the phase shift of the refrigerant from gaseous to liquid phase. At least a portion of the interior wall of the capillary is covered with a coating layer 501. The surface of the coating layer 501 is composed of a hydrophilic phase and a hydrophobic phase. The widths or diameters of the hydrophilic phase and the hydrophobic phase are not more than 200 nm. COPYRIGHT: (C)2005,JPO&NCIPI | ||||||
| 103 | Liquid tank | JP9642099 | 1999-04-02 | JP2000292031A | 2000-10-20 | KAMIYAMA NAOHISA; SUGANO MITSUTOSHI; ADACHI TSUNETAKA |
| PROBLEM TO BE SOLVED: To effectively prevent arrival of a brazing material melted by heating at except a portion to be connected. SOLUTION: A step 38 entirely recessed on a periphery is formed on a connecting portion of a short cylindrical portion 36 and a disc portion 37 for constituting a reinforcing plate 35. Filters 41 are superposed with the plate 35 each other, and connected to predetermined positions in the body 7 by brazing. When brazed, the melted material 51 by brazing is advanced into gap of the plate 35 and the filter 41, tending to clog the filters 41. However, an energy for spreading the material 51 to a bore side part of the filter 51 by a relatively large annular gap 48 formed by the step 38 is consumed to eliminate clogging of the filters 41. | ||||||
| 104 | Refrigerating device | JP35749297 | 1997-12-25 | JPH11182951A | 1999-07-06 | SHIMAMOTO DAISUKE; KASAI TOMOHIKO |
| PROBLEM TO BE SOLVED: To permit using of non-azeotropic refrigerant (including pseudo- azeotropic refrigerant) without any inconvenience by a method wherein a refrigerating device is provided with a fan and compressor capacity control means, controlling the capacity of a compressor as well as a fan for heat source machine side heat exchanger so that a condensing temperature and an evaporating temperature will become predetermined objective values. SOLUTION: A circulating composition detecting device 15 detects the liquid refrigerant temperature of a first temperature detector 1 as well as the temperature and pressure of two-phase refrigerant of a second temperature detector 12 and a second pressure detector 13, then, operates and detects the circulating refrigerant composition of non-azeotropic refrigerant in a refrigerating device 8 based on the detected temperature and pressure. A compressor frequency outputting device 17 compares the obtained condensing temperature as well as the evaporating temperature with respective accommodated objective values and outputs the number of rotation of a fan 7 and the frequency of the compressor 1 to the fan 7 and the compressor 1 respectively so as to achieve respective objective values. According to this method, the refrigerating device employing the non-azeotropic refrigerant can be used without any inconvenience. COPYRIGHT: (C)1999,JPO | ||||||
| 105 | Refrigerating equipment | JP2416993 | 1993-02-12 | JPH06240272A | 1994-08-30 | HIRANO YUTAKA; KOMATSUBARA TAKEO; SUNAGA TAKASHI; TAKAHASHI YASUKI; TANAKA KIYOSHI; AKAZAWA KIYOSHI; JIKUHARA KIYONORI; WATANABE MASATO |
| PURPOSE:To improve the performance and reliability of refrigerating equipment in which R134a is used by keeping the purity of the hydrofluorocarbon refrigerant at a high value, reducing the equilibrium moisture content in a refrigeration cycle or limiting the residual chlorine content of the refrigerant. CONSTITUTION:A refrigerating equipment having a refrigeration cycle A in which 134a as HFC is used and having a refrigerator oil containing a polyol ester oil 18 as the base oil, wherein the 134a refrigerant has a purity of 99.95wt.% or above, and the content of a concomitant chlorine-containing refrigerant is 80ppm or below is provided. | ||||||
| 106 | Freezing and air conditioning operation supervision device | JP32711888 | 1988-12-23 | JPH02171538A | 1990-07-03 | SUGIMOTO TAKESHI |
| PURPOSE: To provide an accurate detection of clogging in an condensor and to find out a trouble before a system down by a method wherein a central processing or control device may produce a clogging alarm signal of a condensor and display it in a displaying means when a difference between a discharged gas temperature and a condensing temperature and a difference between the condensing temperature and a surrounding air temperature are more than a predetermined value in response to an operating state data of a freezer or an air conditioner. CONSTITUTION: When a condensor 52 is clogged, a heat conducting area of the condensor 52 is reduced. In order to get a condensing capability which is similar to that of the normal operating state, it is necessary to get a high difference between a condensing temperature and a surrounding air temperature, resulting in that a condensing temperature becomes high. As the condensing temperature rises, a discharged gas temperature is also increased. Data sent to a transmission I/F of the central control device 1 is calculated by an arithmetic device 7 of the central control device 1 in accordance with a flow chart. That is, a condensing pressure is converted into a condensing temperature so as to calculate a difference TP between a condensing temperature and a surrounding air temperature and a difference Th between a discharged gas temperature and a condensing temperature. Then, in case that a difference between the condensing temperature and the surrounding air temperature is higher than a predetermined value A and a difference between the discharged gas temperature and the condensing temperature is higher than a predetermined value B, a condensor clogged state alarm is outputted on the CRT 2 of the central control device 1. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 107 | METHOD OF REDUCING LIQUID FLOODING IN A TRANSPORT REFRIGERATION UNIT | EP13867734.9 | 2013-12-27 | EP2941604B1 | 2018-09-05 | DOTZENROD, Ryan, J.; MA, YoungChan; SULE, Titilope, Zaburat |
| A method to reduce/prevent liquid refrigerant flooding in the compressor is disclosed herein. The method may include closing down the ETV when there is a risk of compressor flooding. The method may include closing down the ETV to a desired value when there is a risk of the compressor flooding. A failure to provide the superheated refrigerant vapor in a desired superheat temperature by the compressor may indicate a risk of the compressor being flooded by liquid refrigerant. The method may include measuring a refrigerant discharge temperature of the compressor, and closing down the ETV when a difference between the refrigerant discharge temperature of the compressor and a refrigerant saturate temperature is below a desired temperature threshold. | ||||||
| 108 | THROTTLE DEVICE | EP15783275 | 2015-02-27 | EP3136024A4 | 2017-04-26 | TAKADA YASUMASA; TOYAMA YUICHIRO |
| Provided is a throttle device (10) to decompress a refrigerant cooled by a condenser in a refrigerating cycle and to deliver the refrigerant to an evaporator, where a minimum space between a needle valve (4) and a valve port (21) can be accurately set. Inside a cylindrical main body case (1) including a primary chamber (11) connected to the condenser and a secondary chamber (12) connected to the evaporator, a valve seat member (2) formed with a valve port (21) and a cylindrical guide member (3) integral to the valve seat member (2) are provided. A coil spring (6) to energize the needle valve (4) toward the valve port (21) side is provided inside the guide member (3). A needle portion (41) of the needle valve (4) protrudes from the valve port (21) toward the primary chamber (11). A tip portion (41a) of the needle portion (41) abuts against a stopper member and the tip portion (41a) is thereby positioned. A position of the stopper member (7) along an axial line (L) is adjusted by a degree of screwing with the valve seat member (2). | ||||||
| 109 | REDUCTION OF SCALE BUILD-UP IN AN EVAPORATIVE COOLING APPARATUS | EP14812959 | 2014-06-19 | EP3011239A4 | 2017-03-22 | SLAYZAK STEVEN; FINLEY ROBERT; GILLAN LELAND; MANLEY BENJAMIN; THOMPSON DAVID; ZUBE DANIEL |
| A direct evaporative cooler includes a liquid delivery system and an assembly of two or more plates. At least one plate of the assembly of two or more plates may include a top surface having a wicking material with an exposed surface for receiving a liquid thereon from the liquid delivery system, and one or more masks lining a portion of the exposed surface. The one or more masks may be impermeable to the liquid thereby preventing the liquid from evaporating through the one or more masks, and the one or more masks may be sized and shaped such that a wick rate of the liquid on the exposed surface exceeds an evaporation rate of the liquid. | ||||||
| 110 | REFRIGERATION CIRCUIT AND METHOD FOR IMPROVING SAME | EP10789221 | 2010-06-16 | EP2444469A4 | 2013-03-13 | KAMISHIMA HIROMITSU; MATSUZAKI TOMOAKI; MATSUMOTO YUUICHI |
| 111 | METHOD FOR DETECTING A FAULT IN AN HVAC SYSTEM | EP05854861 | 2005-12-21 | EP1838413A4 | 2010-07-07 | KANG PENGJU; FARZAD MOHSEN; FINN ALAN; SADEGH PAYMAN |
| A bypass factor of an evaporator is used to indicate when an air filter of an HVAC is clogged. The bypass factor represents the amount of air that is bypassed without direct contact with the evaporator. As the air filter clogs, the bypass factor decreases. The bypass factor can also be used for early detection of clogging of the air filter. A first bypass factor is calculated by using the temperature measurements, and a second bypass factor is calculated by using the airflow rate of the air. The difference between the two bypass factors determines the error. An increase in the error indicates that the air filter is clogged. A coefficient of performance of the evaporator can also be calculated to detect if the air filter is clogged. A decrease in the coefficient of performance indicates that the air filter is clogged. | ||||||
| 112 | System and method for detecting the clogged state of a pipe of a multi-unit air conditioner | EP05256647.8 | 2005-10-26 | EP1657505B1 | 2008-06-11 | Chang, Se-Dong, Gocheung Joogong Apt. 516-702; Kim, Sung-Hwan, LG Village Apt. 117-302; Lee, Yoon-Been; Chung, Baik-Young, Chojeongmaeul Doosan |
| A method for detecting a clogged state of a pipe of a heat pump type multi-air conditioner includes: detecting a temperature of a pipe of an arbitrary indoor heat exchanger among a plurality of indoor heat exchangers; detecting a pressure of a refrigerant sucked into an arbitrary outdoor unit among a plurality of outdoor units in case of performing an air-conditioning operation, and detecting a pressure of a refrigerant introduced into the arbitrary indoor heat exchanger after being discharged from an arbitrary outdoor unit among the plurality of outdoor units in case of performing a heating operation; and comparing a pressure corresponding to the detected temperature of the pipe and the detected pressure of the refrigerant and determining whether the pipe is clogged based on the comparison result. By detecting a clogged state of a pipe, the heat pump type multi-air conditioner is prevented from being damaged due to a clogged state of the pipe. | ||||||
| 113 | A COOLING DEVICE AND A CONTROL METHOD | EP05798138.3 | 2005-11-02 | EP1807662A1 | 2007-07-18 | GULDALI, Yalcin Arcelik Anonim Sirketi; USTUNDAG, Ertugrul Arcelik Anonim Sirketi; HOCAOGLU, Sabahattin Arcelik Anonim Sirketi |
| This invention relates to of a cooling device ( 1 ) comprising a compressor ( 2 ) which compresses the refrigerant fluid, a condenser ( 3 ) which enables the superheated vapor exiting the compressor ( 2 ) change to first a liquid-vapor phase then liquid phase entirely, a compressor cabinet ( 8 ) positioned separately from the cooling cabinet ( 7 ), into which the compressor ( 2 ) and the condenser ( 3 ) are positioned, one or more evaporators ( 4 ), and one or more capillary tubes ( 5 ) interposed between the compressor cabinet ( 8 ) and the evaporator ( 6 ), and a control method thereof. | ||||||
| 114 | System and method for detecting the clogged state of a pipe of a multi-unit air conditioner | EP05256647.8 | 2005-10-26 | EP1657505A1 | 2006-05-17 | Chang, Se-Dong, Gocheung Joogong Apt. 516-702; Kim, Sung-Hwan, LG Village Apt. 117-302; Lee, Yoon-Been; Chung, Baik-Young, Chojeongmaeul Doosan |
A method for detecting a clogged state of a pipe of a heat pump type multi-air conditioner includes: detecting a temperature of a pipe of an arbitrary indoor heat exchanger among a plurality of indoor heat exchangers; detecting a pressure of a refrigerant sucked into an arbitrary outdoor unit among a plurality of outdoor units in case of performing an air-conditioning operation, and detecting a pressure of a refrigerant introduced into the arbitrary indoor heat exchanger after being discharged from an arbitrary outdoor unit among the plurality of outdoor units in case of performing a heating operation; and comparing a pressure corresponding to the detected temperature of the pipe and the detected pressure of the refrigerant and determining whether the pipe is clogged based on the comparison result. By detecting a clogged state of a pipe, the heat pump type multi-air conditioner is prevented from being damaged due to a clogged state of the pipe.
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| 115 | DECLOGGING DEVICE AND DECLOGGING METHOD | EP03796249.5 | 2003-12-16 | EP1576322A1 | 2005-09-21 | Altunan, Gürol |
| This invention relates to a declogging device (9) and declogging method used to declog and clean the precipitation of metal dusts, compressor oil and the foreign matters in the refrigeration cycle (1) in a refrigerator. | ||||||
| 116 | Refrigerating apparatus | EP98306047.6 | 1998-07-29 | EP0926454A2 | 1999-06-30 | Shimamoto, Daisuke, c/o Mitsubishi Denki K.K.; Kasai, Tomohiko, c/o Mitsubishi Denki K.K. |
A refrigerating apparatus (81-91) using a non-azeotropic refrigerant is provided with a variable capacity compressor (1), a heat-source heat exchanger (5), a throttling device (4), a user-side heat exchanger (3), a variable capacity fan (7), a discharge pressure detector (16), a suction pressure detector (13), a refrigerant cyclic-composition detecting device (15). The detected cyclic composition is used to determine the state of the interior of the refrigerating apparatus; in addition in order to prevent malfunction of the apparatus, the refrigerating apparatus (81-91) is provided with detectors (24,28,35,36,37) to detect directly parameters which cannot be determined accurately owing to an error or the like in the detection of the refrigerant cyclic composition. |
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| 117 | METHOD OF REDUCING LIQUID FLOODING IN A TRANSPORT REFRIGERATION UNIT | EP13867734 | 2013-12-27 | EP2941604A4 | 2017-05-31 | DOTZENROD RYAN J; MA YOUNGCHAN; SULE TITILOPE ZABURAT |
| A method to reduce/prevent liquid refrigerant flooding in the compressor is disclosed herein. The method may include closing down the ETV when there is a risk of compressor flooding. The method may include closing down the ETV to a desired value when there is a risk of the compressor flooding. A failure to provide the superheated refrigerant vapor in a desired superheat temperature by the compressor may indicate a risk of the compressor being flooded by liquid refrigerant. The method may include measuring a refrigerant discharge temperature of the compressor, and closing down the ETV when a difference between the refrigerant discharge temperature of the compressor and a refrigerant saturate temperature is below a desired temperature threshold. | ||||||
| 118 | REFRIGERATION CYCLE DEVICE | EP13887161 | 2013-06-19 | EP3012556A4 | 2017-03-29 | KATO YOHEI; OKAZAKI TAKASHI; ITO DAISUKE; UGAJIN YUKI; MAEYAMA HIDEAKI; SUZUKI YASUHIRO |
| 119 | REFRIGERATION CYCLE DEVICE | EP13887161.1 | 2013-06-19 | EP3012556A1 | 2016-04-27 | KATO, Yohei; OKAZAKI, Takashi; ITO, Daisuke; UGAJIN, Yuki; MAEYAMA, Hideaki; SUZUKI, Yasuhiro |
A refrigeration cycle apparatus 100 is provided with a refrigerant circuit including at least a compressor 1, a condenser, an expansion device 3, and an evaporator, where an ethylene based fluorohydrocarbon or a mixture containing the ethylene based fluorohydrocarbon is used as refrigerant, a controller 52 configured to control a rotation speed of the compressor 1 and an opening degree of the expansion device 3, a clogging amount detection device (memory 51 and computation unit 53) configured to detect a clogging amount of the expansion device 3, and a polymerization amount estimation device (strainers 3a and 3b) used for estimating an amount made up by a product generated through polymerization of the refrigerant in substances causing clogging of the expansion device 3. |
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| 120 | REFRIGERATION CIRCUIT AND METHOD FOR IMPROVING SAME | EP10789221.8 | 2010-06-16 | EP2444469A1 | 2012-04-25 | KAMISHIMA, Hiromitsu; MATSUZAKI, Tomoaki; MATSUMOTO, Yuuichi |
Disclosed is a refrigeration circuit in which a scroll compressor is used as a compressor, an unsaturated fluorinated hydrocarbon refrigerant is used as a refrigerant, and an ether-based lubricant such as a polyalkylene glycol is used as a refrigeration machine oil, and wherein a wax-like solid material, which causes clogging of the refrigeration circuit or deterioration of the refrigeration performance, is prevented from being generated. Specifically, a wax-like solid material is prevented from being generated in a refrigeration circuit by adding a lubricant type component having no polyoxyalkylene structure such as an ester-based lubricant, an alcohol-based friction modifier, an olefin-based friction modifier, a polyolefin-based lubricant, an alkyl aromatic lubricant or a silicone-based lubricant, or a metal deactivation agent such as benzotriazole to an ether-based lubricant such as a polyalkylene glycol. |
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