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81. 发明专利

JPH0979163A COMPRESSOR 失效
公开(公告)号：JPH0979163A
公开(公告)日：1997-03-25
申请号：JP23249895
申请日：1995-09-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODA TOSHIHIDE , ISHIDA NOBORU , SEKIYA SHIN , SHIRAFUJI YOSHINORI
IPC分类号： F04C23/02 , F04C18/02 , F04C29/00 , F04C29/02
摘要： PROBLEM TO BE SOLVED: To secure a necessary feeding oil quantity, and prevent lubricating failure of a slidingly movable part by preventing the vicinity of an oil feeding pump suction port from being put in a low pressure condition when an oil storage part is agitated, and effectively generating a mixed liquid of a refrigerator oil and a liquid refrigerant even when a liquid refrigerant quantity entering a compressor vessel is much. SOLUTION: A shielding plate 6 is arranged between an oil feeding pump suction port 3a and an agitating means 5, and the vicinity of the oil feeding pump suction port 3a is shielded from a rotary flow by the agitating means 5, and an inflow port 6b from which a mixed liquid on the agitating means 5 side can flows in the oil feeding pump suction port 3a side is provided. A through port to smoothly pass upper and lower liquids of a compressing means 2 and a flow guiding plate are provided. A second agitating means is provided in an upper space of the compressing means 2. A bypass passage is provided to connect an upper layer part and a bottom part of an oil storage part to each other.

82. 发明专利

JPH0886519A REFRIGERATING AND AIR-CONDITIONING DEVICE 失效
公开(公告)号：JPH0886519A
公开(公告)日：1996-04-02
申请号：JP22521694
申请日：1994-09-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUMIDA YOSHIHIRO , KODA TOSHIHIDE , SEKIMOTO TARO
IPC分类号： F25B1/00
摘要： PURPOSE: To increase reliability and an energy efficiency sufficiently by supplying refrigerating machine oil to a compressure surely at all times even when an operating condition or a load condition is changed. CONSTITUTION: An oil separator 70, separating refrigerating machine oil 6 from refrigerant and returning it into a compressor 1, is provided in a refrigerant passage connecting the inlet port to the outlet port of the refrigerant in the compressor 1.

83. 发明专利

JPH0444098B2 失效
公开(公告)号：JPH0444098B2
公开(公告)日：1992-07-20
申请号：JP6824984
申请日：1984-04-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODA TOSHIHIDE , KASHIWAMURA KAZUO , YOSHIDA TADAHIRO
IPC分类号： F02G1/043

84. 发明专利

JPH0463996A ROLLING PISTON TYPE ROTARY COMPRESSOR 失效
公开(公告)号：JPH0463996A
公开(公告)日：1992-02-28
申请号：JP17534090
申请日：1990-07-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODA TOSHIHIDE , TSUNODA MASAYUKI , KITORA YOSHIHISA , HIRAI TETSUO
IPC分类号： F04C18/356 , F04C18/324
摘要： PURPOSE:To prevent the lowering of volumetric efficiency of a compressor by making a projected part, which is formed in an outer surface of a rolling piston, go into a discharge opening of refrigerant gas. CONSTITUTION:A projected part 21a is formed in an outer surface of a rolling piston 21. In addition, a rotary joint is formed with both a tip part 22a of a vane 22 and a groove 21b. With this, the rolling piston 21 revolves round the center with respect to an eccentric part 4a of a crank shaft without autorotation, and the position of the projected part 21a always projects itself into a discharge opening 10 at the time of a discharge stroke of refrigerant gas. Meanwhile, the refrigerant gas is discharged from a gap between the projected part 21a and the discharge opening 10 via a discharge valve 11. Accordingly, the amount of the refrigerant gas remaining in the dead volume within the discharge opening 10 can be made minimum, and therefore the lowering of volumetric efficiency due to reexpansion of the remaining gas at the subsequent stage can be made minimum.

85. 发明专利

JPH0458079A LINEAR ELECTRIC MOTOR DRIVE COMPRESSOR 失效
公开(公告)号：JPH0458079A
公开(公告)日：1992-02-25
申请号：JP17191690
申请日：1990-06-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： HIRAI TETSUO , KODA TOSHIHIDE
IPC分类号： F04B35/04
摘要： PURPOSE:To increase the mechanical strength of a metallic bobbin as well as to enhance the performance and reliability of a linear electric motor by providing plural slits on a metallic coil bobbin fixing a coil along the direction of coil movement. CONSTITUTION:A metallic coil bobbin 26 is formed with plural slits 2c along the direction of coil 2 movement. This thereby enables loss in eddy current to be lessened, thereby making it possible to increase mechanical strength without deteriorating performance. Furthermore, reliability can thereby be enhanced with high performance kept on without widening the gap 1a of a magnetic circuit through which a coil 2 is moved.

86. 发明专利

JPH0412195A CLOSED ROTARY COMPRESSOR 失效
公开(公告)号：JPH0412195A
公开(公告)日：1992-01-16
申请号：JP11479790
申请日：1990-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： SEKIYA SHIN , KITORA YOSHIHISA , KODA TOSHIHIDE , TANAKA MIHOKO , KOBAYASHI NORIHIDE
IPC分类号： F04C18/02 , F04C29/02
摘要： PURPOSE:To prevent a fall of an oil feed quantity by separating liquid to the outer diameter side part and gas to the inner diameter side part by centrifugal force in the gas-liquid separation part from oil dissolved with refrigerant in the gas-liquid separation part at starting a compressor, and communicating the suction part of a pump to the outer diameter side part. CONSTITUTION:When a compressor is started after stop of long time, pressure in a shell is lowered by compressive action in a compression mechanism, refrigerant gas molecule dissolved in oil 71 is separated. Meanwhile, by rotation of an oil pump housing 43a, liquid is to the outer diameter side and gas is to the inner diameter side separated by action of centrifugal force of the housing 43a in the gas-liquid separation part 64, and gasified refrigerant molecule is collected to the inner diameter side part. Because an oil suction passage 65 provided in the housing 43a is communicated to the outer diameter part of the gas-liquid separation part 64, almost liquid only is sent to a pump main body, and the liquid is fed to respective bearing parts through an oil feed hole 31.

87. 发明专利

JPH03290067A COMPRESSOR DRIVEN BY LINEAR ELECTRIC MOTOR 失效
公开(公告)号：JPH03290067A
公开(公告)日：1991-12-19
申请号：JP9097190
申请日：1990-04-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： HIRAI TETSUO , KODA TOSHIHIDE
IPC分类号： F04B35/04
摘要： PURPOSE:To reduce the change of the direction of a flow passage and improve the compression performance by assembling a suction valve and a discharge valve in the side wall of a cylinder, in the constitution in which a piston is moved in rectilinear reciprocation by a linear electric motor in a cylinder. CONSTITUTION:A suction port 13 and a discharge port 14 are formed on the side wall part at the center of a cylinder 12, and the electromagnets 15 and 15a which constitute a linear electric motor penetrates both the edge parts of the cylinder 12 in the radial direction and are fixed in the state where the top edge part is slightly projected inside. The armatures 16 and 16a which constitute the linear electric motor, together with the electromagnets 15 and 15a, are arranged in the vicinity of the electromagnets 15 and 15a inside the cylinder 12, and the shiftable characteristic is provided by the compression springs 17 and 17a. A compression chamber 19 is dividedly formed from the pistons 18 and 18a fixed on the armatures 16 and 16a and the inner surface of the cylinder 12, and a suction valve 20 and a discharge valve 21 are installed on the side wall on the center line of the cylinder 12.

88. 发明专利

JPS6449862A STIRLING HEAT ENGINE DRIVE HEAT PUMP 失效
公开(公告)号：JPS6449862A
公开(公告)日：1989-02-27
申请号：JP20701187
申请日：1987-08-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： HONDA TETSUYA , SAKAI MASAHIRO , KODA TOSHIHIDE
IPC分类号： F25B27/00 , F02G1/055 , F25B1/00
摘要： PURPOSE: To ensure smooth operation of an engine and hence high reliability system by providing flow rate adjusting valve in a refrigerant pipe line, and controlling the flow rate adjusting valve based upon a detection result of output detection means provided on an engine side. CONSTITUTION: A flow direction of a refrigerant is switched to heating or cooling with the aid of a four-way valve 3, and a heating part of a Stirling engine 1 is heated with a combustion machine, and starting torque is provided with the aid of a starter. Hereby, the engine becomes a self-standby state, and heat pump operation is effected. A refrigerant flow rate adjusting valve 27 is provided in a refrigerant pipe line, and compression load in a compressor 2 is reduced by reducing a flow rate upon starting the heat pump while the flow rate is increased as an output of the engine is raised. Hereby, the engine is smoothly built up into a stationary operation state. The flow rate adjustment is performed in response to the output of the engine, and a temperature detection element 25 is provided on an outer wall of the neighborhood of a junction between the heating part and a regenerator part of the engine to simulate the engine output for flow rate adjustment. A load amount in response to the engine output is realized for endurance of smooth starting at all times.

89. 发明专利

JPS63248958A OIL RISING PREVENTIVE DEVICE FOR STIRLING ENGINE 失效
公开(公告)号：JPS63248958A
公开(公告)日：1988-10-17
申请号：JP8341487
申请日：1987-04-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： HISAMORI YOICHI , KODA TOSHIHIDE , HONDA TETSUYA
IPC分类号： F01M5/00 , F02G1/053
摘要： PURPOSE:To prevent condensation of oil steam so as to prevent oil invasion into an operation chamber by providing a temperature adjusting means for adjusting the temperature of a cylinder liner for a distance chamber and a power piston sliding part at the lower part of a power piston into the temperature same as the lubricating oil. CONSTITUTION:A crank case pressurizing type stirring engine has a cylinder liner 1 in which a power piston 8 and a cross head 5 that are connected in a body through a piston rod 9 slide and the power piston 8, etc., are moved vertically through a connecting rod 6. And spaces above end below the power piston 8 are called compressing chamber 10 and distance chamber 11 respectively and a space below the cross head 5 is called buffer chamber 12. In this case, a temperature adjusting water passage 22 in which temperature adjusting water flows is formed at the periphery of the cylinder liner 1 and the temperature adjusting water is circulated through an inlet 20 and an outlet 21. Hereby the condensation of oil steam is prevented in the distance chamber 11 and lubricating oil is prevented from invading the operation chamber.

90. 发明专利

JPS6232267A STIRLING ENGINE 失效
公开(公告)号：JPS6232267A
公开(公告)日：1987-02-12
申请号：JP17263085
申请日：1985-08-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODA TOSHIHIDE , HONDA TETSUYA , TAKETOH KIYOSHI , YOSHIDA TADAHIRO
IPC分类号： F02G1/043 , F02G1/053 , F04B39/00 , F16N31/00 , F25B9/14
摘要： PURPOSE:To improve operation efficiency, by mounting a cover for preventing a lubricating oil from scattering into a space defined between a power piston and a cross head, and a scatter preventing porous member for absorbing an oil scattering beyond the cover, on a moving member in a cylinder. CONSTITUTION:The Stirling engine is designed in such that pressure fluctuation generated in a cylinder 16 (a pressure generating mechanism is not shown) is applied to a power piston 15, and is converted to a power, which is then transmitted to a power piston rod 14, a cross head 13, and power piston connecting rods 11 and 12. Then, a rotative work is taken out by a crank shaft 7. In the above engine, the power piston rod 14 as a moving member is provided with a cover 27 for preventing an oil from scattering into a space defined between the power piston 15 and the cross head 13. A scatter preventing porous member 28 is provided on the cover 27 on the side of the power piston 15. An oil absorbing member 17 is provided between the porous member 28 and the power piston 15, and is fixed to the cylinder 16.

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