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11. 发明专利

JPH0861592A LUBRICATING DEVICE FOR CYLINDER 失效
公开(公告)号：JPH0861592A
公开(公告)日：1996-03-08
申请号：JP21057394
申请日：1994-08-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKIZUKI YUKIO
IPC分类号： F01M1/20 , F16N29/00
摘要： PURPOSE: To prevent increase in the wear of a piston ring and cylinder liner and also seizure of them by removing sludge which is deposited in a lubricating small hole, and thereby injecting lubricating oil to the inner surface of the cylinder liner at all times. CONSTITUTION: A pressure sensor 7 senses the oil injecting pressure in an oil lubricating path 112 in communication with a lubricating small hole 6, and when the pressure change given by the sensor 7 attains the pressure change value preset in association with the clogging condition of the small hole 6 with sludge 20, an analyzer 22 sends a signal to a drill driving device 23 so that a sludge removing drill 11 is advanced to scratch off the sludge 20.

12. 发明专利

JP2001174207A DISPLACEMENT GAUGE AND MEASURING METHOD FOR DISPLACEMENT AMOUNT 失效
公开(公告)号：JP2001174207A
公开(公告)日：2001-06-29
申请号：JP35597199
申请日：1999-12-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKAHASHI BUNJI , AKIZUKI YUKIO , KOUNO MASAYA , MAEKAWA KAZUHIKO , TSUNODA AKIRA , SUZUKI HAJIME , MOROHOSHI AKIZO , ARAI YUKIHIRO , YAMADA HIDETOSHI
IPC分类号： G01B7/00 , F15B15/28 , G01D5/14
摘要： PROBLEM TO BE SOLVED: To detect vertical movement, rotation, oil film thickness of a ring, rolling element pass of a rolling bearing, etc., without causing disconnection of a lead wire and a large amount of man-power, and damaging original movement of the ring, and realize the reduction of a measurement preparatory term and cost and improvement of reliability. SOLUTION: A displacement gauge, measuring the amount of displacement of an object to be measured, which is composed of ferromagnetic material is equipped with a Hall element 22 arranged facing the object and a magnet 23 arranged on the rear of the Hall element 22.

13. 发明专利

JPH09137865A RING LINER LUBRICANT HOLDING DEVICE 失效
公开(公告)号：JPH09137865A
公开(公告)日：1997-05-27
申请号：JP31853795
申请日：1995-11-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKIZUKI YUKIO
IPC分类号： F01M1/06 , F02F1/08 , F02F3/00 , F16J10/00
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of run out of oil and to decrease an amount of consuming lubricant by a method wherein metallic brushes are radially filled in a part, positioned in a level higher than that of the top ring of a piston, in such a manner to surround the piston and an annular labyrinth seal is disposed on the inner peripheral surface of a cylinder liner. SOLUTION: Lubricant 5 fed by a lubrication oil pump 8 is fed through a feed pipe 9 to an oil injection rod 7 → the slide surface of an scraped up by a piston ring 2 → the slide surface of a cylinder liner 4 and scraped up by a piston ring 2. The scraped up lubricant 5 is temporarily held in metallic brushes 10 radially arranged in such a manner to surround the top land of a piston 1, spread in a stroke direction and a lateral direction is improved and oil rise of lubricant is prevented from occurring. Further, the lubricant 5 is held at the side of the piston by means of purge gas of a labyrinth seal 21 arranged at the upper part of the cylinder liner 4 and scraped down in a stroke direction. Since spread in a direction to a position below the oil and a lateral direction is improved, run out of the lubricant 5 is prevented from occurring and an amount of consuming lubricant is reduced.

14. 发明专利

JP2003269449A FOIL BEARING 审中-公开
公开(公告)号：JP2003269449A
公开(公告)日：2003-09-25
申请号：JP2002069746
申请日：2002-03-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： MAKINO TAKERO , AKIZUKI YUKIO
IPC分类号： F16C27/02
摘要： PROBLEM TO BE SOLVED: To provide a foil bearing ensuring sufficient stiffness without causing a problem even when increased in size. SOLUTION: In this foil bearing 22 comprising a bearing portion 23 having a groove 26, and a back spring provided so as to serve as a bridge between the groove 26 and a groove 26, a plurality of cushion portions 31 is provide in the bearing portion 23 side of the back spring 24 between the groove 26 and the groove 26. COPYRIGHT: (C)2003,JPO

15. 发明专利

JPH1089473A PISTON OF RECIPROCATING ENGINE 失效
公开(公告)号：JPH1089473A
公开(公告)日：1998-04-07
申请号：JP24608496
申请日：1996-09-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKIZUKI YUKIO
IPC分类号： F02F3/00 , F02F5/00 , F16J1/08 , F16J9/00
摘要： PROBLEM TO BE SOLVED: To reduce the specific consumption of lubricating oil upon checking an outflow of this lubricating oil into a combustion chamber and to obviate the occurrence of seizure between a cylinder liner and a piston ring due to a shortage of this lubricating oil on a sliding surface (inner surface) of the cylinder liner and an increase in abrasion too. SOLUTION: In a piston 3 of a reciprocating engine, this piston 3 is made up of having an annular oil catching groove 7 installed on the circumference of a top land 3a at the upper part of a first stage piston ring 4, and also a through hole interconnecting the oil catching groove 7 and a ring groove 9 of the first piston ring 4 installed. In addition, as a second means, a lubricating oil raking-down ring, being operated by an electromagnet and scraping off lubricating oil in a clearance of the top land, is installed on the top land part.

16. 发明专利

JP2002181526A BEARING CLEARANCE MEASURING APPARATUS 失效
公开(公告)号：JP2002181526A
公开(公告)日：2002-06-26
申请号：JP2000384772
申请日：2000-12-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOUNO MASAYA , NODA TAKASHI , TAKAHASHI BUNJI , AKIZUKI YUKIO , MAKINO TAKERO , UMEDA AKIHIKO
IPC分类号： G01B21/16 , F16C17/24 , F16C41/00 , G01B21/00 , G01B21/08 , G01B21/32
摘要： PROBLEM TO BE SOLVED: To prevent damage which accurately measures the thickness of an oil film between a rotating shaft and bearings supporting the rotating shaft in a bearing clearance measuring apparatus. SOLUTION: Measuring sensors 23a to 23f are mounted on a bearing 20 at a specified interval circumferentially in a specified measuring region (the range of an angle θ) including the lowest end positions of bearings 20 and 21. A controller 25 plots measured values (the thickness of the oil film) with respect to the positions of the sensors based on measured values of the respective measuring sensors 23a to 23f, to generate a graphic (curved) representing a continuous bearing oil film data in the measuring area from the measured values using a spline function.

17. 发明专利

JPH05163918A RING LINER LUBRICATING DEVICE 失效
公开(公告)号：JPH05163918A
公开(公告)日：1993-06-29
申请号：JP33072891
申请日：1991-12-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKIZUKI YUKIO
IPC分类号： F01M1/04 , F01M1/06 , F01M1/08 , F02B3/06
摘要： PURPOSE:To obtain a lubricant supply device which can evenly supply lubricating oil to sliding surfaces between a piston ring and a cylinder liner. CONSTITUTION:A ring liner lubricating device supplies lubricating oil to a portion between a piston ring 2 and a cylinder liner 2 of a Diesel engine. A gas intake valve 7A and a (Lo+ gas) discharge valve are opened or closed by pressure difference between a first stage ring and a second stage ring. Lo intake valve 5A and Lo discharge valve 6A are opened or closed by pressure difference between the oil charger and a piston are arranged.

18. 发明专利

JPH0222535A EQUIPMENT FAULT PREDICTIVE DIAGNOSTIC DEVICE 失效
公开(公告)号：JPH0222535A
公开(公告)日：1990-01-25
申请号：JP17291788
申请日：1988-07-12
申请人： MITSUBISHI HEAVY IND LTD , SANYO TRADING CO
发明人： FUKUTOMI MASATOSHI , MITSUTAKE SHOJI , MAEKAWA KAZUHIKO , AKIZUKI YUKIO , MATSUMOTO YOSHIMASA
IPC分类号： G01B21/00 , F01M11/10 , G01M15/00 , G01M15/04 , G01M99/00 , G01N15/06 , G01N15/14
摘要： PURPOSE:To enable on-line automation and to evaluate a fault timely by providing a dilution tank, a particle acquiring device, and a particle measurement sensor. CONSTITUTION:Sample oil diluted in an oil tank 2 is guided into a sampling tank 3 through piping 33 by a quantitative pump 7 and then guided from the tank 3 to the particle acquiring device 5 which has a deposition pipe internally through piping 35 by a quantitative pump 9. Further, a solvent in the dilution tank 4 is guided to the tank 3 through piping 34 by a quantitative pump 8 and the solvent in the tank 4 is guided into the deposition pipe of the device 5 through piping 36 by the pump 8 to clean its inside. Further, the device 5 is provided with the particle measurement sensor 10, whose detection signal is amplified 11 and inputted to an arithmetic part 12 to calculate the total wear quantity, so that the result is outputted on a display part 13 and a recorder 14.

19. 发明专利

JPS62127509A DETECTING DEVICE FOR ABNORMALITY IN BEARING 失效
公开(公告)号：JPS62127509A
公开(公告)日：1987-06-09
申请号：JP26776785
申请日：1985-11-28
申请人： MITSUBISHI HEAVY IND LTD , CHORYO ENG
发明人： MATSUO MAKOTO , FUKUTOMI MASATOSHI , AKIZUKI YUKIO , ARAKI SHINJI
IPC分类号： F16C17/24
摘要： PURPOSE:To detect abnormality in a bearing more quickly by composing a circuit of a detector for the output of AE (Acoustic Emission) sensor fixed to a bearing, a level setting device for judging the above output, a pulse shape forming device, and a reference time setting device to understand the working state of the bearing and a shaft. CONSTITUTION:AE sensor 3 is fixed to a bearing 2, and an output sent through an amplifier 5 and a band-pass filter 6 is detected and rectified by a detector 7. A waveform processor 8 receives an output sent by a level setting device 10 ad a detecting output signal, and outputs a pulse shape for the detecting output signal higher than a fixed level. A pulse counter 9 counts the number of the above square pulse for a time specified by a reference time setting device 11. The number of the square pulse is compared with the abnormal number of count established by a setting 12 for the number of count using a comparator 13 for the number of count, and when the number of the square pulse is more than the above abnormal number of count,an alarm 14 and alarm output 15 give warning. Since AE method can give response more quickly than a former method, abnormality in bearing can be detected more quickly than ever.

20. 发明专利

JPS6058841A COMPOSITE MATERIAL FOR SLIDING 失效
公开(公告)号：JPS6058841A
公开(公告)日：1985-04-05
申请号：JP16659183
申请日：1983-09-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： NEMOTO MASAAKI , ONO SHIGEHARU , AKIZUKI YUKIO , FUKUTOMI MASATOSHI
IPC分类号： F16C33/24 , B22F3/24 , B32B9/00 , B32B15/04 , C10M103/00 , C10M103/04 , C10N20/00 , C10N30/06 , C10N40/02 , C10N50/00 , C10N50/08 , C23C24/02 , F16C33/12

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