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51. 发明专利

JPH1026430A GAS INJECTION TYPE HEAT PUMP 失效
公开(公告)号：JPH1026430A
公开(公告)日：1998-01-27
申请号：JP18372296
申请日：1996-07-12
申请人： DENSO CORP , NIPPON SOKEN
发明人： SUZUKI TAKAHISA , TAKEO YUJI , OZAKI YUKIKATSU
IPC分类号： F25B13/00 , B60H1/00 , F25B49/02
摘要： PROBLEM TO BE SOLVED: To improve heating capability in a gas injection type heat pump apparatus by increasing the amount of gas injection. SOLUTION: Attention is paid to a fact that high pressure is changed owing to the amount of passed air through an indoor heat exchanger and hereby the amount of gas injection is changed. Upon heating, cycle high pressure is detected, and based upon the detected value an upper limit B P of the foregoing amount of passed air is determined in step 106. The upper limit BP and a set air amount BO set by an air amount changeover lever are compared in step 107, and if the set air amount BO is larger, the foregoing amount of passed air is limited within the upper limit BP in step 108. With the limit of the foregoing amount of passed air high pressure is raised to raise intermediate pressure at a gas/liquid separator whereby the amount of gas injection is increased and hence heating capability is effectually improved.

52. 发明专利

JPH09290622A VEHICULAR AIR CONDITIONER 失效
公开(公告)号：JPH09290622A
公开(公告)日：1997-11-11
申请号：JP10296596
申请日：1996-04-24
申请人： DENSO CORP
发明人： SUZUKI TAKAHISA , TANAKA KATSUYA , IRITANI KUNIO , ISHII KATSUYA , TOMOARI KEIICHIRO
IPC分类号： B60H1/22
摘要： PROBLEM TO BE SOLVED: To improve a heating capacity in time of a low outside temperature so effectively as checking an increase in watt consumption by recovering a waste heat from heating parts mounted on a car, and having it absorbed into a coolant for gas injection. SOLUTION: In time of heating, a coolant is circulated by a closed circuit consisting of a compressor 20, an indoor heat exchanger 22, a pressure reducer 25 and an outdoor heat exchanger 23, while this coolant condensed in the indoor heat exchanger 22 is decompressed up to intermediate pressure in two pressure reducers (thermostatic expansion valves) 27a and 27b, making it flow into two heat exchangers 28a and 28b in which the coolant absorbs heat from heating parts 30a and 30b at the car side and then it evaporates, and this coolant after evaporation is taken into a gas injection port 20c of the compressor 20 from a gas injection passage 20d through two evaporative pressure regulating valves 29a and 29b.

53. 发明专利

JPH09286225A AIR CONDITIONER FOR VEHICLE 失效
公开(公告)号：JPH09286225A
公开(公告)日：1997-11-04
申请号：JP15850296
申请日：1996-06-19
申请人： DENSO CORP
发明人： KUSANO KATSUYA , ISAJI AKIRA , TSUCHIYA SHIZUO , KODAMA SATORU , EZAKA SATORU , OOMURA MITSUYO , ISHIKAWA HIROSHI , TAKEO YUJI , SUZUKI TAKAHISA
IPC分类号： B60H1/00 , B60H3/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner for an electric vehicle, capable of exerting sufficient dehumidifying capacity even in a reduced necessity of heating capacity in dehumidifying as well as heating the interior, and preventing a reduction in heating capacity due to frosting on an interior heat exchanger in full necessity of heating capacity. SOLUTION: A first solenoid valve 31 is provided on a first refrigerant passage A which leads at a dehumidifying mode a refrigerant from a first decompressor 22 to an exterior heat exchanger 23 through a branch connection 45. A second solenoid valve 32 is provided on a second refrigerant passage B which leads at a dehumidifying mode the refrigerant from the first decompressor 22 to an interior heat exchanger 25 through the branch connection 45 by way of a second decompressor 24. The second solenoid valve 32 is always opened. On the other hand, an ECU 100 closes the first solenoid valve 31 to improve dehumidifying capacity when a detected value from a temperature sensor 115 after an evaporator is not less than a preset temperature, and opens the first solenoid valve 31 to improve dehumidifying as well as heating capacity when the detected value is below the preset value.

54. 发明专利

JPH0939550A AIR CONDITIONER FOR VEHICLE 失效
公开(公告)号：JPH0939550A
公开(公告)日：1997-02-10
申请号：JP19642195
申请日：1995-08-01
申请人： DENSO CORP , NIPPON SOKEN
发明人： SUZUKI TAKAHISA , NAGATA TOSHIHIRO , INAGAKI MITSUO , ONIMARU SADAHISA , OZAKI YUKIKATSU
IPC分类号： B60H1/22 , B60H1/32 , B60H3/00 , F25B13/00 , F25B29/00
摘要： PROBLEM TO BE SOLVED: To improve the heating capacity when the outside temperature is low by injecting the gas refrigerant into a compressor in a heat pump system in which an evaporator exclusive for cooling and a condenser exclusive for heating are provided in a cabin. SOLUTION: A gas injection port 22c is provided in a compressor 22, a fixed throttle 26 to evacuate the refrigerant on the cycle high pressure side to the intermediate pressure is provided, and a gas-liquid separator 25 to separate the gas-liquid refrigerant of intermediate pressure evacuated by the fixed throttle 26 is provided. A passage 22d for gas injection to introduce the gas refrigerant separated by the gas-liquid separator 25 to the gas injection port 22c is provided. In the heating mode, the refrigerant is circulated in a closed circuit consisting of the compressor 22, a condenser 12, the fixed throttle 26, the gas-liquid separator 25, an expansion valve 27, and an out-of-cabin heat exchanger 24, and the gas refrigerant in the gas-liquid separator 25 is introduced in the gas injection port 22c through the passage 22d.

55. 发明专利

JP2003159931A AIR CONDITIONER FOR VEHICLE 审中-公开
公开(公告)号：JP2003159931A
公开(公告)日：2003-06-03
申请号：JP2002171595
申请日：2002-06-12
申请人： DENSO CORP
发明人： TAKANO YOSHIAKI , SUZUKI TAKAHISA , IZAWA SATOSHI , NAGAI KEISUKE , KURATA TAKASHI
IPC分类号： B60H1/00 , B60H1/22 , B60H1/32
摘要： PROBLEM TO BE SOLVED: To secure a clouding preventive effect for a vehicle window in an execution of a hot gas heating mode, and to enable the effective exertion of a heating capability in the hot gas heating mode by precisely judging whether a clouding preventive control for the window is necessary or not. SOLUTION: In an air conditioner for a vehicle, a refrigerating cycle for cooling, in which an interior heat exchanger is operated as an evaporator, and a hot gas heater cycle, in which the interior heat exchanger is operated as a heat dissipater, can be shifted to each other. In the heating mode actuated by the hot gas heater cycle, whether the interior heat exchanger has retained water or not is decided (S20). When it is decided that the heat exchanger has the retained water, a compressor is controlled intermittently so as to keep the blow-out air temperature of the heat exchanger below that of the vehicle window (S40, S30, S50). COPYRIGHT: (C)2003,JPO

56. 发明专利

JP2002316532A CONTROL DEVICE FOR COOLING FAN FOR VEHICLE 失效
公开(公告)号：JP2002316532A
公开(公告)日：2002-10-29
申请号：JP2001123083
申请日：2001-04-20
申请人： DENSO CORP
发明人： SUZUKI TAKAHISA , KURATA TAKASHI
IPC分类号： F01P7/04 , B60H1/32
摘要： PROBLEM TO BE SOLVED: To provide a control device for a cooling fan for a vehicle capable of reducing the working noise level of the cooling fan by suppressing the air- blasting quantity of the cooling fan for the predetermined time immediately after a compressor is started during the operation of the refrigerating cycle. SOLUTION: This control device of the cooling fan comprises the cooling fan 5 for blasting the cooling air toward a condenser 4 of the refrigerating cycle having a radiator 3 and the compressor 6, an electromagnetic clutch 7 to connect/disconnect the compressor 6 to/from a drive source of a water- cooled engine 2, a pressure sensor 14 for detecting the high-pressure side pressure, and an electronic control device 10 for controlling the operation of the cooling fan 5 according to the detected pressure PH of the pressure sensor 14. The electronic control device 10 comprises a vehicle speed sensor 12 for detecting the vehicle speed. The electronic control device 10 performs the control so that the air-blowing quantity is suppressed for the predetermined time after operating the compressor 6 if the vehicle speed detected by the vehicle speed sensor 12 is below the predetermined value when the electromagnetic clutch 7 is connected to operate the compressor 6 during the operation of the refrigerating cycle.

57. 发明专利

JP2002307938A COOLING FAN CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JP2002307938A
公开(公告)日：2002-10-23
申请号：JP2001119911
申请日：2001-04-18
申请人： DENSO CORP
发明人： SUZUKI TAKAHISA , SHINODA TETSUSHIGE
IPC分类号： F01P7/04 , B60H1/32
摘要： PROBLEM TO BE SOLVED: To realize a cooling fan control device for vehicle that can reduce the power consumption of a compressor without increasing electric power consumption at the off time of an electromagnetic clutch by operating a cooling fan before the operation of the compressor. SOLUTION: This cooling fan control device for the vehicle is provided with a radiator 3 for cooling a cooling liquid; a cooling fan 5 which blasts cooling air toward a condenser 4 of a refrigerating cycle having a compressor 6 for compressing a refrigerant; an electromagnetic clutch 7 intermittently connecting the compressor 6 to a drive source of a water-cooled engine 2; and an electronic control unit 10 for controlling the operation of the compressor 6 and cooling fan 5. The electronic control unit 10 has a compressor delay control means 160 for operating the compressor 6 after operating the cooling fan 5 for a prescribed time when receiving a command of connecting the electromagnetic clutch 7 during the operation of the refrigerating cycle to operate the compressor 6.

58. 发明专利

JP2002178742A ADSORPTION TYPE REFRIGERATOR FOR VEHICLE 失效
公开(公告)号：JP2002178742A
公开(公告)日：2002-06-26
申请号：JP2000374875
申请日：2000-12-08
申请人： DENSO CORP
发明人： SUZUKI TAKAHISA , INOUE SATORU
IPC分类号： B60H1/32 , F25B17/08
摘要： PROBLEM TO BE SOLVED: To realize an adsorption type refrigerator for a vehicle improved in refrigerating capacity by cooling a cooling liquid separately in an adsorption process and a desorption process, and heightening the cooling capacity on the adsorption process side. SOLUTION: This adsorption type refrigerator applied to the vehicle with a water-cooled engine is provided with first and second adsorbers 111, 112 filled with an adsorbent Si and a liquid refrigerant to exhibit the refrigerating capacity, and vehicle outdoor heat exchangers 121, 122 for cooling the cooling liquid circulating in the first and second adsorbers 111, 112. The vehicle outdoor heat exchangers 121, 122 have an adsorbing outdoor apparatus 121 for cooling the cooling liquid circulating in first and second adsorption cores 111a, 112a, and a condensing outdoor apparatus 122 for cooling the cooling liquid circulating in first and second condensation cores 111b, 112b, independently of each other. The adsorbing outdoor apparatus 121 is arranged on the air flow upper reaches of the condensing outdoor apparatus 122 to improve the cooling capacity.

59. 发明专利

JP2002048428A ADSORPTION TYPE REFRIGERATING MACHINE 失效
公开(公告)号：JP2002048428A
公开(公告)日：2002-02-15
申请号：JP2000234548
申请日：2000-08-02
申请人： DENSO CORP , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： SUZUKI TAKAHISA , MATSUNO TAKAMITSU , MITSUI HIROYUKI
IPC分类号： F25B17/08
摘要： PROBLEM TO BE SOLVED: To perform sufficiently refrigerating capability without depending upon operating conditions (environmental conditions) of an adsorption type refrigerating machine. SOLUTION: The adsorption type refrigerating machine can select at least one of a forcibly cooling mode for sucking a refrigerant evaporated by an evaporator 30 by a pump 70 to send the sucked vapor refrigerant directly to a condenser 40, an evaporation assisting mode for sucking the refrigerant evaporated in the evaporator 30 by the pump 70 to send the sucked vapor refrigerant to adsorbers 10 and 21 in an adsorbing step, an a condensation assisting mode for sucking the vapor refrigerant in the adsorbers 10 and 21 in a desorbing step by the pump 70 to discharge the sucked vapor refrigerant toward the condenser 40. Thus, both the adsorbing moisture amount and the desorbing moisture amount can be increased, and refrigerating capability of the refrigerator can be increased.

60. 发明专利

JP2001090538A COOLER 失效
公开(公告)号：JP2001090538A
公开(公告)日：2001-04-03
申请号：JP26586399
申请日：1999-09-20
申请人： DENSO CORP
发明人： KURATA TAKASHI , SUZUKI TAKAHISA , MATSUO HIROKI , NIIMI YASUHIKO
IPC分类号： B60K11/04 , B60H1/32 , F01P5/02 , F01P11/10
摘要： PROBLEM TO BE SOLVED: To prevent a cooling capacity of a condenser from being lowered in accordance with recirculation of hot air, using a simple means. SOLUTION: A condenser by-pass passage 12 for bypassing the condenser 7 is kept in an opened condition all the time. Since a major quantity of the recirculated hot air flows thereby into the by-pass passage having flowing resistance lower than that of the condenser 7 without passing through the condenser 7 so as to be circulated to a radiator 8 side, a temperature of the condenser 7 is prevented from rising by the hot air recirculated to a front face side of the condenser 7.

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