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1. 发明专利

JPH1130568A TEST WORK-BENCH FOR FUEL SUPPLY DEVICE OF ENGINE 失效
公开(公告)号：JPH1130568A
公开(公告)日：1999-02-02
申请号：JP18610497
申请日：1997-07-11
申请人： KUBOTA KK
发明人： OKAMOTO KAZUTOSHI , YAMAZAKI MASANORI , MURATA MUTSUMI
IPC分类号： G01M15/04 , F02B67/00 , F02M37/00 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To find a proper combination and relative arrangement of constituent components of an engine by making it possible to test a fuel supply device while changing combinations and arrangements of the constituent components. SOLUTION: The test work-bench for fuel supply device of engine is so constituted that a tank support part 1, a filter support part 2, and a supply pump support part 3 can be fitted to a base 4, a fuel tank 5, a fuel filter 6, and a fuel supply pump 7 as the constituent components of the fuel supply device can be fitted to the tank support part 1, filter support part 2, and supply pump support part 3 detachably, and the respective heights of the fuel tank 5, fuel filter 6, and fuel supply pump 7 can be adjusted through the tank support part 1, filter support part 2, and supply pump support part 3.

2. 发明专利

JPH06257468A SMOKE REDUCER OF DIESEL ENGINE 失效
公开(公告)号：JPH06257468A
公开(公告)日：1994-09-13
申请号：JP7089293
申请日：1993-03-05
申请人： KUBOTA KK
发明人： YAMAZAKI MASANORI , MURATA MUTSUMI , KAMATA YASUICHI
IPC分类号： F02D1/02 , F02B3/06 , F02D1/04 , F02D31/00
摘要： PURPOSE:To improve the precision of a smoke reducer by providing its function same as that of a boost compensator also to a general-purpose diesel engine and dispensing with adjustment of fuel individual fuel limiting operating device for setting stable operation. CONSTITUTION:A rotational sensor 21, a fuel limiting tool operating circuit 22 and a fuel limiting operating tool 23 are provided for a diesel engine. This fuel limiting tool operating circuit 22 is composed of a memory means 22a and a computing means 22b, and drive-controls the fuel limiting operating tool 23 by calculating the rack position from the fuel injection amount stored in the memory means 22a on the basis of an engine speed signal N from the rotational sensor 21. Thereby, when the engine is driven in the specific low speed range J, a control rack 9 is subjected to fuel limiting operation, while when the engine is released from the specific low speed load driving state, the fuel limiting operation is released and transferred to the control rack control by a governor device 1.

3. 发明专利

JPH06129359A CONTROL DEVICE FOR HYDRAULIC PUMP OF ENGINE 失效
公开(公告)号：JPH06129359A
公开(公告)日：1994-05-10
申请号：JP30460392
申请日：1992-10-16
申请人： KUBOTA KK
发明人： KIOKA SEIJI , MURATA MUTSUMI , MURAOKA AKINORI , YAMAZAKI MASANORI
IPC分类号： F04B49/00 , F04B49/02 , F04B49/10
摘要： PURPOSE:To facilitate the start of an engine by reducing the resistance of an engine-driven hydraulic pump when it is going to be started at a low temp. CONSTITUTION:Via a working oil supply path 6, a working oil tank 5 is put in communication with the upstream of a hydraulic pump 3 which is driven by an engine 1, and the pump 3 is put in communication with a hydraulic device 7 via a working oil pressure feed path 8. Between the pressure feed path 8 and hydraulic device 7, a three-way selector valve 9 is provided, whose changeover front port 9a is connected with the hydraulic device 7 while changeover rear port 9b is put in communication with the supply path 6 via a working oil bypass 10. A cooling water temp. sensor 11 mounted on the engine 1 is connected with the three-way valve 9 via a changeover controller 12. In case the sensing value of this sensor 11 remains not exceeding the set value T, the valve 9 is switched to cause bypassing round the hydraulic pump 3 and in the case the value exceeds set value T, the valve 9 is left unswitched and the changeover front port 9a is connected to the hydraulic device 7 to generate possibility of operating.

4. 发明专利

JP2000054936A INJECTION TIMING MEASURING DEVICE FOR FUEL INJECTION PUMP 失效
公开(公告)号：JP2000054936A
公开(公告)日：2000-02-22
申请号：JP22378198
申请日：1998-08-07
申请人： KUBOTA KK
发明人： OKAMOTO KAZUTOSHI , YAMAZAKI MASANORI , IMAI HIDEO
IPC分类号： G01M15/04 , F02M65/00 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To facilitate measurement, reduce measurement error, and prevent dripping down of fuel from causing environmental pollution. SOLUTION: Fuel Q in a fuel pump 1 is force-fed into a plunger barrel 14 of a fuel injection pump 10 with a force feed pump 3, manually rotation of a cam shaft 26 presses up a plunger 17 of the fuel injection pump 10, flow state of the fuel Q force-fed through a force feed pipe 22 is detected, and fuel injection timing is read from a cam shaft interlocking division. Feeding pressure of the force feed pump 3 is set larger than valve opening pressure of a delivery valve 20 of the fuel injection pump 10, a clear pot 24 visible flow state of the fuel Q is connected with the force feed pipe 22 to detect stop of the flow of the fuel Q into the clear pot 24, and thereby, the pressed up plunger 17 reads timing of closing of the inlet 13 into the plunger barrel 14.

5. 发明专利

JPH09192949A BOGIE FOR ASSEMBLING AND DISASSEMBLING ENGINE 失效
公开(公告)号：JPH09192949A
公开(公告)日：1997-07-29
申请号：JP903496
申请日：1996-01-23
申请人： KUBOTA KK
发明人： YAMASHITA MASAHIRO , YUGAWA MASAJI , AKEDA MASAHIRO , YAMAZAKI MASANORI , OKAMOTO KAZUTOSHI , HAYATANI AKIRA , KAMATA YASUICHI , YAMAMOTO NOBUHIRO , YOTSUTSUJI TOSHIYUKI , KOYAMA HIDEYUKI
IPC分类号： B23P19/04 , B23P21/00 , B62D65/00
摘要： PROBLEM TO BE SOLVED: To provide a bogie for assembling and disassembling an engine, which is safe and excellent workability, by eliminating the necessity of carrying in and carrying out an engine onto and form a working base during disassembly and assembly of the engine, and by reducing the frequency of use of a crane. SOLUTION: A bogie comprises thereon a rotary support means 10 for supporting an engine 50 whose posture is changeable, and a tool and part rack 40 supported on the rotaqry support means 10 so as to set thereon parts and tools. The rotary support means comprises 10a base 12 provided on the bogie 1, and a rotary shaft 13 rotatably supported on the base 12, an engine fixing attachment removably secured to the rotary shaft 13, and a rotary drive means 18 for rotating the rotary shaft 13.

6. 发明专利

JP2775568B2 失效
公开(公告)号：JP2775568B2
公开(公告)日：1998-07-16
申请号：JP4722993
申请日：1993-02-13
申请人： KUBOTA KK
发明人： YAMAZAKI MASANORI , MURATA MUTSUMI , KAMATA YASUICHI
IPC分类号： F02D1/02 , F02B3/06 , F02D11/10 , F02D23/02 , F02D31/00 , F02D41/22

7. 发明专利

JPH06317186A FUEL LIMITING DEVICE OF SUPERCHARGER-EQUIPPED DIESEL ENGINE 失效
公开(公告)号：JPH06317186A
公开(公告)日：1994-11-15
申请号：JP13124593
申请日：1993-05-07
申请人： KUBOTA KK
发明人： YAMAZAKI MASANORI , MURATA MUTSUMI , KAMATA YASUICHI
IPC分类号： F02D1/02 , F02B3/06 , F02D11/10 , F02D23/02 , F02D31/00
摘要： PURPOSE:To provide a fuel limiting device of a supercharger-equipped diesel engine, which can easily adjust the limit operating position of an output portion at high accuracy. CONSTITUTION:A feed air pressure detector 30 for a supercharger 29, an engine speed detector 27 for an engine E, and a fuel limiting solenoid 22 are provided. The output portion 23 of the fuel limiting solenoid 22 can be switched between a limit operating position and a limit canceling position. At the limit operating position a governor lever 5a which engages directly with a control rack 6 can be received by means of the output portion 23. Only when a speed greater than a set value greater than the speed of the engine E at start and lower than the idling speed of the engine is detected by the engine detector 27 and the feed air pressure that the feed air pressure detector 30 detects is low, the output portion 23 is switched to the limit operating position so that the movement of the control rack 6 to the fuel increasing side is restrained via the governor lever 5a.

8. 发明专利

JPH03294620A VORTEX CHAMBER TYPE COMBUSTION CHAMBER FOR DIESEL ENGINE 失效
公开(公告)号：JPH03294620A
公开(公告)日：1991-12-25
申请号：JP9469190
申请日：1990-04-09
申请人： KUBOTA KK
发明人： MURATA MUTSUMI , YAMAZAKI MASANORI , TERASHITA SEIJI , YAMADA SHUICHI , OKAZAKI MASAO , TSUCHIYA SHINSUKE , YOSHIDA KOZO , KOUNO AKIYOSHI
IPC分类号： F02B19/08 , F02B3/06 , F02B19/14
摘要： PURPOSE:To spread width of vortex flow and perform perfect combustion by providing a vortex width spreading means on the vortex flow passing route on the inner wall of a vortex chamber, and constituting the vortex flow width spreading mans out of recessed and projection channels of multiple spiral. CONSTITUTION:A vortex flow width spreading mean 5 is provided on the vortex flow 4 passing route on the inner wall of a vortex chamber 3. The vortex flow width spreading means 5 is constituted out of recessed and projecting channels 7 of multiple spiral having the swirling center 6 near by the center in the width direction of vortex flow 4. Outside half part 8 of the vortex flow 4 is guided with the recessed and projecting channels 7 spreading width from the lower stream side to the swirling center 6, while spreading its width in order. Inside half part 9 of the vortex flow 4 is guided with the recessed and projecting channels 7, while narrowing width once and spreading width in order by mutual inner collision. In this way, the width of vortex flow can be spread and perfect combustion of fuel can be performed.

9. 发明专利

JPH03225023A SWIRL CHAMBER TYPE COMBUSTION CHAMBER FOR DIESEL ENGINE 失效
公开(公告)号：JPH03225023A
公开(公告)日：1991-10-04
申请号：JP2139090
申请日：1990-01-30
申请人： KUBOTA KK
发明人： YAMADA SHUICHI , SHIRAISHI YASUNORI , YAMAZAKI MASANORI , HAYATANI AKIRA , KOUNO NORIYOSHI
IPC分类号： F02B19/08 , F02B3/06
摘要： PURPOSE:To improve low-temperature startability and improve the combustibility in a swirl chamber by providing a fog protecting tube covering the outer periphery of the vicinity section at the start end of an oil column sprayed from an injection port at the upper section of the swirl chamber. CONSTITUTION:A swirl chamber 2 is provided at one lateral side section on the upper side of a main combustion chamber 1, and an injection port 3 is bored over its bottom face 2a and the upper end face 1a of the main combustion chamber 1. The axis 4 of the injection port 3 is inclined in the tangent direction eccentrical on the lateral outside from the center 2c of the swirl chamber 2. The injection port 6 of fuel injection nozzle 5 provided on the upper side of the swirl chamber 2 is faced to the bottom face 2a. A fog protecting tube 8 covering the outer periphery of the vicinity section 7a at the start end of an oil column 7 sprayed from a fuel injection nozzle 5 is provided on the upper side of the swirl chamber 2. The contact between the swirl and the inner face of the swirl chamber 2 or the sticking of fuel liquid drips on the inner face of the swirl chamber 2 can be prevented, and the temperature drop in the swirl chamber 2 is suppressed. Since fuel liquid drips are engulfed into the swirl after being atomized, the mixing efficiency of air and fuel is improved.

10. 发明专利

JP2000018015A OIL RETURN DEVICE FOR ENGINE 失效
公开(公告)号：JP2000018015A
公开(公告)日：2000-01-18
申请号：JP18834198
申请日：1998-07-03
申请人： KUBOTA KK
发明人： YAMAZAKI MASANORI , YAMAMOTO NOBUHIRO , HAYATANI AKIRA , MURAOKA AKINORI , KOYAMA HIDEYUKI , YOSHII OSAMU , MANABE HIROSHI
IPC分类号： F01M1/06 , F01M9/10 , F02F1/24 , F02F1/42
摘要： PROBLEM TO BE SOLVED: To reduce the deterioration of oil which flows in an oil passage by receiving heat from an exhaust passage. SOLUTION: Exhaust ports 5 are arranged in a cylinder head 1, and valve systems are formed on an upper side of the cylinder head 1. Push rod holes 11 for communicating the valve systems and crank chambers with each other are arranged in the cylinder head 1. Oil forcibly fed to the valve system chamber is returned to the crank chamber sides through the push rod holes 11. Banks 13 are arranged on upper edges of the push rod holes 11 so as to block that oil which flows toward the push rod holes 11 flows from the exhaust port 5 sides toward the push rod holes 11.

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