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1. 发明专利

JP2004132489A Shift control valve operating actuator of automatic transmission 有权
公开(公告)号：JP2004132489A
公开(公告)日：2004-04-30
申请号：JP2002298474
申请日：2002-10-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OTA HIROHISA , TOKIYA SATORU , MIYAJIMA MASAYASU , ISOZUMI SHUZO
IPC分类号： F16H61/28 , F16H61/00 , F16H61/662 , F16H63/06 , F16K31/04 , H02K7/06
CPC分类号： F16K31/047 , F16H61/0251 , F16H63/065 , H02K7/06
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive shift control valve operating actuator of an automatic transmission by reducing the size and weight of a magnet.
SOLUTION: A rotor 6 having the magnet 11 composed of a rare earth magnet is rotatably arranged in a covering material 2. A through-hole 16a is bored on the motor axis directional one end of the covering material 2. A filter 23 is arranged so as to cover the through-hole 16a from the motor axis directional other end side. A shaft 4 is installed in a bush 10 by threadably attaching a male screw part 4a to a female screw part 10b. An operation member 22 is integrally installed in the other end part of the shaft 4 extending from a through-hole 12c of a housing 12. A rotation regulating projection part 22a of a guide member 22 fixed to the shaft 4 is loosely fitted to a guide groove 12b extended in the motor axis direction on an inner wall surface of a central hole 12a.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2000045906A HIGH-PRESSURE FUEL PUMP SYSTEM 失效
公开(公告)号：JP2000045906A
公开(公告)日：2000-02-15
申请号：JP21380098
申请日：1998-07-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： TANAKA KATSUNORI , MIYAJIMA MASAYASU , ONISHI YOSHIHIKO , IKEGAMI TATSUYA
IPC分类号： F02M55/00 , F02M55/02 , F02M55/04 , F02M59/44 , F02M59/46 , F02M63/02 , F16K15/04 , F16K15/16
摘要： PROBLEM TO BE SOLVED: To provide a high-pressure fuel pump system, with high discharged flow rate efficiency, which can reduce abrasion loss of a pump driving cam and improve durability of metal bellows. SOLUTION: This high-pressure fuel pump system 200 supplies high-pressure fuel from a fuel supply port 9 to a delivery pipe 1a and includes a high-pressure fuel pump 20 with an intake valve 22 and a discharge valve 21, a fuel discharge passage 4 for communicating the discharge valve 21 to the fuel supply port 9, and a high-pressure damper 60 (a volume chamber) provided in the fuel discharge passage 4. A first check valve 210 is provided between the high-pressure damper 60 and the discharge valve 21 within the fuel discharge passage 4 and opens when pressure on the side of the high-pressure damper 60 is lower than pressure on the side of the discharge valve 21 by a predetermined value. The first check valve 210 may be either a ball valve or a lead valve. Further, a second check valve may be provided between the fuel supply port 9 and the high-pressure damper 60. The fuel discharge passage 4 may have a passage area equal to or larger than that of a fuel discharge port 4a over the entire length of the fuel discharge passage 4.

3. 发明专利

JPH11230390A CHECK VALVE AND SEATING VALVE 失效
公开(公告)号：JPH11230390A
公开(公告)日：1999-08-27
申请号：JP3901398
申请日：1998-02-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAJIMA MASAYASU , HASHIBA MITSUHARU , KANDA NORIYUKI
IPC分类号： F16K15/04
摘要： PROBLEM TO BE SOLVED: To provide a check valve and a seating valve having little deformation of a seat, and a satisfactory sealability. SOLUTION: This check valve is composed of an accommodation space 36 formed in a fluid passage 8; a body 41a formed with a passage hole 41b along the center axis; a head part 41c raised in a one side end face of the body 41a along the outer periphery of the passage hole 41b and formed with a seat 41d at the end part; a seating valve 41 arranged with one end face on the opposite side of the head part 41c allowed to abut to the bottom surface 25a of a recess 25; a valve element 32 having a seat surface abutting to the seat 41d; an elastic member 33 compressedly accommodated an accommodation space 36 and urging the valve element 32 in the direction of the seat 41d; and a fixing member 31 for fixing the seating valve 41 to the bottom of the recess 25 by applying a load to a shoulder part of the body 41a in the direction of the center axis. With this arrangement, a thin wall part 41g is formed between a loading point of the shoulder part 41e and the seat 41d.

4. 发明专利

JP2001248517A VARIABLE DELIVERY RATE FUEL SUPPLYING SYSTEM 失效
公开(公告)号：JP2001248517A
公开(公告)日：2001-09-14
申请号：JP2000055336
申请日：2000-03-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： ONISHI YOSHIHIKO , MIYAJIMA MASAYASU
IPC分类号： F02D41/38 , F02M59/20 , F02M59/36 , F02M63/02 , F04B49/24
摘要： PROBLEM TO BE SOLVED: To provide a variable delivery rate fuel supplying system capable of suppressing a coil temperature without being influenced by responsiveness of a solenoid valve, and stably controlling a fuel pressure at all times. SOLUTION: This system is provided with injection valves 1a to 1d for injecting fuel to each cylinder in an internal combustion engine, a fuel pump 3 for delivering pressurized fuel from a delivery valve 27 by sucking and pressurizing fuel from a fuel intake passage 25 into a pressurizing chamber 17 through an intake valve 26, the solenoid valve 28 which is disposed in a relief passage 31 for communicating the fuel intake passage 25 and the pressurizing chamber 17 of a fuel pump 3 and for controlling a delivery by relieving pressurized fuel in the pressurizing chamber 17 at the time of opening the valve, and a control means 13 for applying a valve opening signal to the solenoid valve 28. A time width of the valve opening signal applied to the solenoid valve 28 by the control means 13 is set to a time having a constant ratio at all times with respect to a reciprocating motion cycle of the plunger 15.

5. 发明专利

JP2000310171A FUEL SUPPLY DEVICE 失效
公开(公告)号：JP2000310171A
公开(公告)日：2000-11-07
申请号：JP12068499
申请日：1999-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAJIMA MASAYASU
IPC分类号： F02M37/04 , F02B75/12 , F02F3/26 , F02M37/00 , F02M37/18 , F02M47/00 , F02M63/00 , F02M63/02
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device which reduces the load of an engine and decrease fuel consumption by minimizing the loss of pump power. SOLUTION: A first pressure intensifying mechanism 3A and a second pressure intensifying mechanism 3Z which pressurize the pressure of the fuel to be supplied to an engine at a specified high pressure are provided, and a check valve 4 and a junction passage 14, which has a two way switch valve 5A and connects the check valve 4 and the discharge side of the pressure intensifying mechanism 3Z and low pressure and high pressure fuel passage 8, are provided. When the engine demands a small amount of fuel, the two way valve 5A is operated to open the passage 14.

6. 发明专利

JP2000145591A FUEL SUPPLY DEVICE 失效
公开(公告)号：JP2000145591A
公开(公告)日：2000-05-26
申请号：JP28397098
申请日：1998-10-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAJIMA MASAYASU , INOUE KOICHI
IPC分类号： F02M37/00 , F02M59/46 , F02M61/04 , F02M63/00 , F02M63/02
摘要： PROBLEM TO BE SOLVED: To reduce an abrasion rate of a valve and a valve seat, ensure good sealing property, suitably control pressure, solve reduction of fuel pressure, suitably inject fuel at all times by specifying the hardness of an abutting surface of a valve and the valve seat in a high pressure regulator. SOLUTION: In a high pressure regulator, since a valve 641 is separated from a valve seat 63 when fuel pressure in a delivery pipe exceeds a prescribed value, fuel is returned to a fuel tank bypassing those clearances so as to reduce fuel pressure. In this case, a seat part 63a as an abutting part of the valve seat 63 is set to the same hardness as a conventional part. In a seat part 641a of the valve 641 which abuts on the seat part 63a, nitride process is carried out, its hardness is set to Hv800 or more. Abrasion of the valve 641 is reduced, only the seat part 63a is abraded, and the valve 641 is rotated so as to ensure sealing property. Accordingly, pressure is suitably controlled, the reduction of fuel pressure is solved, and fuel is suitably injected.

7. 发明专利

JPH10331735A SUPPLY DEVICE FOR ENGINE 失效
公开(公告)号：JPH10331735A
公开(公告)日：1998-12-15
申请号：JP14212997
申请日：1997-05-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： MORISHITA AKIRA , KONISHI KEIICHI , MIYAJIMA MASAYASU
IPC分类号： F02M37/04 , F02M37/00 , F02M55/00 , F02M55/04 , F02M59/44 , F02M63/02 , F04B11/00
摘要： PROBLEM TO BE SOLVED: To prevent abnormal pressure fluctuation of fuel to prevent generation of noise in a device provided with a high pressure fuel pump having a bellows chamber by providing a means for restraining the abnormal pressure fluctuation caused by the expansion/shrinkage operation of the bellows. SOLUTION: In a high pressure fuel pump 1, fuel flows into a pump chamber at the downstroke of a piston 8 when the piston 8 is reciprocated according to the rotation of a cam 2 and the fuel in the pump chamber is discharged at the time of upstroke thereof. The fuel leaking between the piston 8 and a sleeve forming the pump chamber is prevented from leaking to the outside by a bellows 11. The fuel leakage in the bellows 11 is returned to a fuel tank 29 via a return piping 27. In this case, a volume chamber 36 is provided on the way of the piping 21. The volume of time chamber 36 is set larger than the maximum volume of fuel which is liable to stay between the chamber 36 to the tank 29 in the piping 27. Accordingly, an abrupt pressure change can be restrained to prevent decrease in the service life of the bellows 11.

8. 发明专利

JP2009011056A Controller of three-phase brushless motor 有权
标题翻译：三相无刷电机控制器
公开(公告)号：JP2009011056A
公开(公告)日：2009-01-15
申请号：JP2007169032
申请日：2007-06-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MIYAJIMA MASAYASU , SUZUMURA ATSUSHI , ONISHI TOSHIYUKI , OHATA KATSUMI
IPC分类号： H02P6/08 , H02P6/16
CPC分类号： H02P6/15 , Y10S388/928
摘要： PROBLEM TO BE SOLVED: To present the controller of a three-phase brushless motor which can reduce the gap of conduction switching timing incident to the error of fixing position of a position sensor and the error of magnetization position of a rotor without requiring complicated adjustment. SOLUTION: A control circuit has a time interval operation means provided with at least one time interval operation mode, and a plurality of time intervals corresponding to an addition section are operated in that one time interval operation mode based on two position detection signals located at the opposite ends of the addition section where continuous Q (two or more) sections are added out of position detection signals generated sequentially. The control circuit determines a plurality of conduction switching timings based on the plurality of time intervals. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：呈现三相无刷电机的控制器，其可以减少入射到位置传感器的固定位置的误差的传导切换定时的间隙和转子的磁化位置的误差，而不需要复杂调整。解决方案：控制电路具有设置有至少一个时间间隔操作模式的时间间隔操作装置，并且对应于加法部分的多个时间间隔基于两个位置检测信号在该一个时间间隔操作模式下操作位于附加部分的相对端，其中连续的Q（两个或更多个）部分被依次产生位置检测信号。控制电路基于多个时间间隔确定多个导通切换定时。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2000065227A CHECK VALVE 失效
公开(公告)号：JP2000065227A
公开(公告)日：2000-03-03
申请号：JP23729298
申请日：1998-08-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAJIMA MASAYASU , HASHIBA MITSUHARU
IPC分类号： F16K15/04
摘要： PROBLEM TO BE SOLVED: To restrict movements of an opening direction and a right angled direction of a valve element, and reduce abrasion on a seat surface of a valve seat, a valve element guide part of a holder, and the like by setting a difference between an inner diameter of a guide hole arranged on the valve element guide part and an outer diameter of the valve element in a specified range with respect to the outer diameter of the valve element. SOLUTION: A value of a valve clearance difference between an inner diameter ϕA of a guide hole 101k arranged on a valve element guide part 101g and an outer diameter ϕD of a valve element 83 is set to be not less than 0.005 and not more than 0.1. When the value is set to be not less than 0.1, the valve element 83 is freely moved in an opening direction and a right angled direction of the valve element 83, and an abrasion rate of an inner circumferential surface 101n of the valve element guide part 10 g is rapidly increased. When it is set to be not more than 0.005, a sliding resistance between the valve element 83 and an inner circumferential surface 101n of the valve element guide part 101 g is increased. The movements of the opening direction and the right angled direction of the valve element 83 are restricted, and abrasion on the valve element guide part 101g; the valve element 83, a spring, a valve seat, and the like can be reduced.

10. 发明专利

JPH09209869A HIGH PRESSURE PUMP DEVICE AND ITS TESTING METHOD 失效
公开(公告)号：JPH09209869A
公开(公告)日：1997-08-12
申请号：JP18027196
申请日：1996-07-10
申请人： MITSUBISHI ELECTRIC CORP , MITSUBISHI MOTORS CORP
发明人： TOMINAGA TSUTOMU , MIYAJIMA MASAYASU , GESHI KAZUHIRO , SHIMAOKA KIYOSHIGE , UKONMAANAHO MAURI , MARUYAMA TOMOHIDE
IPC分类号： F02M55/00 , F02M59/44 , F02M65/00
摘要： PROBLEM TO BE SOLVED: To solve fault that a part having no pressure resistant specification is damaged by high pressure when the oil tightness of a high pressure pipeline is inspected after assembled, by arranging a check valve between a passage through which fuel in the outside of the high pressure part of a high pressure pump is discharged to the outside of the high pressure pump and the outlet passage of high pressure regulating means. SOLUTION: When the oil tightness of a high pressure pipeline is inspected after a high pressure pump device 1 is assembled, firstly, a fuel pressure switching valve 15 is opened, a high pressure pipeline such as a fuel distributing piping 3 and a high pressure piping 5 are evacuated under vacuum, and air existing in the piping is extracted, and after that, testing liquid is filled into the high pressure pipeline from the intake side of a high pressure pump 11. Next, the high pressure pipeline is pressurized by pressure a little bit higher than a normal operating period from the outlet passage side of a high pressure regulator 14, and pressure lowering in a constant time is measured, then oil tightness inspection is carried out. At this time, a check valve 17 is interposed in the fuel discharge passage 19 of the high pressure pump 11, therefore, high pressure testing liquid is blocked by the check valve 17 and may not be led to flow into a high pressure pump 11 side, and a part having no pressure resistant specification is prevented from being damaged.

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