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1. 发明专利

JPH10311282A SPEED CONVERTING POWER TRANSMITTING DEVICE BY LIQUID PUMP MECHANISM 失效
公开(公告)号：JPH10311282A
公开(公告)日：1998-11-24
申请号：JP13452897
申请日：1997-05-09
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI , OGAWARA RYOZO
IPC分类号： F04C2/10
摘要： PROBLEM TO BE SOLVED: To provide a speed converting power transmitting device with a liquid pump to have a function to freely regulate a rotation speed ratio and a shaft power ratio between input and output shafts throughout a wide range and transmit a high power and a power for high speed rotation compared with a conventional power transmission device having a trochoidal tooth shape, and simplify machining. SOLUTION: A liquid pump mechanism comprises an outer rotor 2 rotatably contained in a static housing 3 and having the tooth shape of an internal tooth 2a; a cam shaft 5 rotatably supported at the housing 3 and having an eccentric cam 5A deviated from a rotary axis by a constant amount; an inner rotor 1 halving the tooth shape of an external tooth 1a engaged with a part of the tooth shape of the internal tooth 2a of the outer rotor 2, an inner periphery fitted in the eccentric cam 5A and autorotated and revolved through rotation of the cam shaft 5; and a spacer 30 in a crescent shape with which a part, having no engagement part between the outer rotor 2 and the inner rotor 1, is filled. A special liquid pump mechanism where a discharge part and a suction part are separated away from each other by the spacer and working liquid is fed from the suction port to the discharge port is developed and arranged. By controlling a pressure in the liquid chamber of the device, the rotation speed and the shaft power of a driven shaft are varied.

2. 发明专利

JPH09298861A SENSOR FOR FLUID LEAKAGE 失效
公开(公告)号：JPH09298861A
公开(公告)日：1997-11-18
申请号：JP13433596
申请日：1996-05-01
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI , SASAKI TAKASHI
IPC分类号： H02K11/00
摘要： PROBLEM TO BE SOLVED: To provide a leak sensor which can sense even such a strongly corrosive fluid as ammonia gas without any corrosion of a detecting sensor by a low cost sensing device having a comparably simple structure. SOLUTION: In this sensing device, a sensor 50 is connected via a path formed in a case member with a space formed among a plurality of O-rings provided in the end portion of a can for separating a rotor and stator from each other, and by this sensor 50, such a leakage fluid as ammonia gas leaked in the foregoing space is sensed. In this case, the sensor 50 has a sensing portion brought into a hermetically sealed state to the outside which so contacts with the foregoing leakage fluid in a space communicating with the foregoing path as to sense the leakage fluid electrically. Also, the sensor 50 has in the outside air a receiving portion for receiving a leak sensing signal transmitted from this sensing portion in a non-contact state with this sensing portion.

3. 发明专利

JPH08121360A ROTARY COMPRESSOR CONTAINING TROCHOID COMPRESSOR 失效
公开(公告)号：JPH08121360A
公开(公告)日：1996-05-14
申请号：JP28584494
申请日：1994-10-26
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI , AKIYAMA SHIGERU
IPC分类号： F04C18/10 , F04C29/00 , F04C29/12
摘要： PURPOSE: To increase a suction amount and to improve compression efficiency by providing a guide means for sucking gas which is constituted to widely improve a suction effect produced when a rotary disc having a suction port is rotated and further utilizes high speed rotation. CONSTITUTION: A space part 20A for suction extending in a counter rotational direction in such a manner to wrap at least a part of port from the port cutoff position of a rotary disc 5 for suction is formed on the rotary disc 5, and the opening of the space part 20A is arranged facing the rotation direction of the rotary disc 5. It is preferable that the space part 20A is formed in a shape wherein a sectional space shape is increased from the port cutoff position toward the opening part and in concrete terms, is formed approximately concentrically to the rotary disc 5 and approximately in an arcuate shape.

4. 发明专利

JPH07103164A TROCHOIDAL COMPRESSOR 失效
公开(公告)号：JPH07103164A
公开(公告)日：1995-04-18
申请号：JP27611493
申请日：1993-10-07
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI
IPC分类号： F04C18/10 , F04C27/00 , F04C29/00 , F04C29/12
摘要： PURPOSE:To promote high speed and large capacity easily while reducing an outer diameter by making a circumscribed rotator into rotation and revolution by means of an eccentric turning shaft in a state that an inscribed trochoidal body is locked, and simultaneously rotating a side cover. CONSTITUTION:In an inscribingly fixed trochoidal body 1, a trochoidal tooth form is supported by a cylindrical frame. In addition, an circumscribed rotator 2 with an outer circumferential tooth form generated by this tooth form is installed in an inner space of the trochoidal body 1 rotatably and revolbably via an eccentric turning shaft 4. Further a pair of sliding turntables 5 and 6 are installed at both sides of a pair of fitting gears 1 and 2 consisting of the trochoidal body 1 and the circumscribed rotator 2 and then locked to a tuning shaft 4b. On the other hand, an inlet port and a discharge port are formed in the paired sliding turntables 5 and 6. In succession, a suction pipe 23 and a discharge pipe 24 are connected to a suction chamber 21 and a discharge chamber 22 surrounded by both the sliding turntables 5, 6, a pair of side covers 27, 28 and a frame 29.

5. 发明专利

JPH06153441A CANNED MOTOR 失效
公开(公告)号：JPH06153441A
公开(公告)日：1994-05-31
申请号：JP31411292
申请日：1992-10-29
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI
IPC分类号： H02K5/128
摘要： PURPOSE:To provide a canned motor in which generation of an eddy current loss is prevented without forming a can of a metal cylinder and a decrease in an efficiency of the motor and a heat loss can be prevented. CONSTITUTION:Reinforcing cylinders 5 having flanges 50 at brackets 9A, 9B are arranged between a stator core 30 side end and the brackets 9A, 9B. An end of the cylinder 5 is formed in a spigot structure, press-fitted in a stationary core 30 to be integrated with a core 50. At least an inner periphery of the core 50 and an inner periphery of the cylinder 5 are covered with resin having high stability.

6. 发明专利

JPH05322669A MEASURING APPARATUS OF FEEDING AMOUNT OF HEAT AND COIL 失效
公开(公告)号：JPH05322669A
公开(公告)日：1993-12-07
申请号：JP15004392
申请日：1992-05-19
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI , KURAMOTO KANAME
IPC分类号： G01F1/76 , G01K17/00
摘要： PURPOSE:To measure operate and display the total of the latent heat in the ice and snow and the heat generated from the discharged water when the water is cooled as the true feeding amount of heat and cold in a heat and cold feeding system for feeding a mixture of ice, snow and water to a cooling load such as a freezing warehouse or the like. CONSTITUTION:The apparatus is provided with a mass flow rate measuring means 1 for detecting the amount of ice and snow and the amount of water separately, an oscillating means 4 for freely oscillating a measuring pipe 3 including a mixture of ice, snow and water, and an oscillation detecting means 5. Moreover, the apparatus is provided with an integrating/display means 6 for operating and displaying both the latent heat of ice and snow and the heat generated by the water discharged from the cooling load.

7. 发明专利

JPH01109195A ELECTROMAGNETIC PROPULSION DEVICE 失效
公开(公告)号：JPH01109195A
公开(公告)日：1989-04-26
申请号：JP26776187
申请日：1987-10-23
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI
IPC分类号： B63H19/00 , H02K44/04
摘要： PURPOSE:To propel a cylinder body simply and surely by making the current of plural electrode pairs provided in the cylinder body cross with the flux of exciting coils provided outside of the cylinder body so as to generate electromagnetic force and send off liquid in the cylinder body. CONSTITUTION:A cylinder body 2 of insulation is provided in a device main body 1, and the cylinder body 2 is formed in such a way that both end surfaces of cross section circular are opened so that fluid with conductivity, for example, sea water can flow. Along the outer circumference of the cylinder body 2, plural exciting coils 3 are provided in such a way to oppose one polarity to the other and as well to be rotatable in the circumferential direction of the cylinder body 2. In addition, plural electrode pairs 5, 7 composed of plural electrodes 4, 6 in opposition to each other are arranged in such a way to cross at right angles mutually along the inner circumference of the cylinder body 2. With this arrangement, the current I of respective electrode pairs 5, 7 crosses with the flux of the rotating exciting coils 3. Sea water is expelled by the magnetic flux F and propulsion force in the longitudinal direction is attained.

8. 发明专利

JPS6470294A ELECTROMAGNETIC PROPULSION DEVICE 失效
公开(公告)号：JPS6470294A
公开(公告)日：1989-03-15
申请号：JP22735887
申请日：1987-09-10
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI
IPC分类号： B63H19/00 , H02K44/06
摘要： PURPOSE:To prevent the generation of gas and get rid of the occurrence of noise and vibration by providing plural exciting coils on the outer periphery of a fluid-passable cylinder body having an insulating property while covering the exciting coils with a magnetic shielding body. CONSTITUTION:An electromagnetic propulsion device body 1 has a cylinder body 2 on which exciting coils 3 are externally installed. By filling the inside of the cylinder body 2 with sea water and, as a three-phase alternative current is applied to the exciting coil 3 in a superconducting condition, a strong magnetic field is generated in the axial direction of the cylinder body 2 while inducing an eddy current in the perpendicular direction thereto. As a result, a repulsive force is generated in the axial direction of the cylinder body 2, obtaining a propulsion force. In this case, a magnetic shielding body 5 becomes a nonmagnetic material due to a Meissner effect forming a magnetic path in a space part. Hence, by introducing sea water from an introducing pipe 12, a ship can advance effectively. Thereby, no gas is generated because there is no electrode, neither causing noise nor vibration.

9. 发明专利

JPS58153132A THERMOCOUPLE TEMPERATURE SENSOR FOR FREEZING 失效
公开(公告)号：JPS58153132A
公开(公告)日：1983-09-12
申请号：JP3590582
申请日：1982-03-09
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI
IPC分类号： F25D23/00 , A23L3/36 , F25D29/00 , G01K7/02 , G01K7/06
摘要： PURPOSE:To facilitate the pulling of a protecting tube, by constituting a high resistance raw wire as the protecting tube in a pair of raw metal wires, and using a gimlet shaped tip as a thermoelectric junction point. CONSTITUTION:The temperature sensor is constituted by the protecting tube 1, a thermocouple raw wire 2 which forms a pair together with the protecting tube 1, the thermoelectric junction point 3, and an insulator 4. The protecting tube 1 is inserted into a material to be frozen 5. The output of the sensor is connected to a temperature detecting and displaying device 9 or a heating power source 10 through a switch 8, by which switching is performed. The protecting tube 1 is made of copper nickel alloy (negative thermocouple raw wire) having a high resistance value. The thermocouple raw wire 2 comprises a positive wire made of iron or copper. When the protecting tube 1 is pulled out, a current is flowed to the sensor from the power source 1 and the raw wire 2 acts as the conductor. The protecting wire 1 is heated by a resistance and the pulling work can be facilitated.

10. 发明专利

JPS5826570A PWM VOLTAGE TYPE TRANSISTOR-INVERTER DEVICE 失效
公开(公告)号：JPS5826570A
公开(公告)日：1983-02-17
申请号：JP12383881
申请日：1981-08-07
申请人： MAEKAWA SEISAKUSHO KK
发明人： INOUE WAHEI , SASAKI TAKASHI
IPC分类号： H02M7/48
摘要： PURPOSE:To improve the output voltage as well as to prevent the generate of noise on the titled device by a method wherein, when ON position is given to the two transistors of the former stage or the latter one, an ON-OFF control is performed on one transistor at the former or the latter stage. CONSTITUTION:When ON position is given to the transistors 11, 12 and 13 (or 14, 15 and 16) of the series circuits 11-14, 12-15 and 13-16 of the transistor at the former stage (or the latter stage), the same waveform with different phase is inputted to the base of each transistor in such a manner that ON-OFF control can be performed for one of the transistors 14, 15 and 16 (or 11, 12 and 13) at the latter stage (or the former stage). Through these procedures, as the DELTAt1 time established for prevention of synchronous continuity of the series-connected transistors is not included in the pulse width of a modulation signal, the output voltage does not drop in the amount of component correspnding to the DELTAt1 time, thereby enabling to improve the output voltage of the device. Also, the noise generating on the line in the course of quiescent time can be reduced.

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