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101. 发明专利

JPH07208282A AIR CLEANER OF ENGINE 失效
公开(公告)号：JPH07208282A
公开(公告)日：1995-08-08
申请号：JP343194
申请日：1994-01-18
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , NAKAMURA TATSUYUKI , YOSHIDA KOZO , MIYAZAKI HIDEYA , MANBA SHUNICHI
IPC分类号： F02M35/024
摘要： PURPOSE:To prevent performance of an engine from being deteriorated by preventing airtightness between a cleaner case of an air cleaner of the engine and a filter element from being deteriorated. CONSTITUTION:A seal means 4 is bonded and provided to at least one side of both ends 3, 3 of a filter element 2 of an air cleaner 1 of an engine. The filter element 2 is so constituted as to hold the seal means 4 in a cleaner case 5 of the air cleaner 1 while compressing it. A protrusion 6 is formed on a joint surface 4a of the seal means 4 to be bonded to the end 3 of the filter element 2. The protrusion 6 of the seal means 4 is so constituted as to be bonded to the end 3 of the filter element 2 while being fitted thereto.

102. 发明专利

JPH07174044A COOLING DEVICE FOR CYLINDER BLOCK OF MULTICYLINDER ENGINE 失效
公开(公告)号：JPH07174044A
公开(公告)日：1995-07-11
申请号：JP32068693
申请日：1993-12-21
申请人： KUBOTA KK
发明人： YAMASHITA KENJI , YOSHIDA KOZO , YAMAMOTO TAKASHI
IPC分类号： F01M1/06 , F01P3/02 , F01P3/20 , F02F1/14 , F02F1/20
摘要： PURPOSE:To prevent the deterioration of the cooling performance due to the clogging with foundry sand, chips, or water scale, in a narrow cooling water passage and prevent the deterioration of the sealing performance of a gasket. CONSTITUTION:A plurality of cylinder bores 13 are formed on the cylinder block 11 of a multicylinder engines E, and a cooling liquid passage 20 is formed on the cylinder wall between the contiguous cylinder bores 13 and 13. The cooling liquid passage 20 is allowed to communicate with the head bolt hole 19b of the cylinder block 11, and a lubricating oil passage 3 which communicates with a locker arm shaft 2 and the head bolt hole 19 of the cylinder head 10 are allowed to communicate through a communication pipe 5, and lubricating oil is allowed to flow in the cooling liquid passage 20 through the head bolt hole 19, and the head side part 15a of the cylinder wall 15 is cooled.

103. 发明专利

JPH07119495A FUEL INJECTION TIMING ADJUSTING DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPH07119495A
公开(公告)日：1995-05-09
申请号：JP26681293
申请日：1993-10-26
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , NAKAMURA TATSUYUKI , UMEDA YUZO , MANBA SHUNICHI , YOSHIDA KOZO
IPC分类号： F02D1/16 , F02B3/06 , F02M59/20 , F02M59/28 , F02M59/44
摘要： PURPOSE:To adjust an fuel ignition timing without stopping operation of a diesel engine by adjusting a fuel injection timing in a state where a prestroke is kept at a constant value. CONSTITUTION:A fuel injection gear 12 consists of a helical gear. Two shaft slide rings 17a and 17b are fitted in an superposed state in at least one bearing hole 4b of the front wall 1a or the rear wall 1b of a fuel injection pump chamber 1 and brought into contact with the side end face of a bearing 16b. The slid rings 17a and 17b have a plurality of inclination contact surfaces 18a and 18b making contact with respective opposite faces when the slide rings are superposed with each other. Through relative rotational adjustment of the shaft slide rings 17a and 17b, a fuel injection cam shaft 11 is longitudinally slidably adjustable through a bearing 16b.

104. 发明专利

JPH0763054A WATER COOLER OF MULTICYLINDER ENGINE 失效
公开(公告)号：JPH0763054A
公开(公告)日：1995-03-07
申请号：JP20616793
申请日：1993-08-20
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , NAKAMURA TATSUYUKI , YOSHIDA KOZO
IPC分类号： F01N3/02 , F01P3/02 , F01P3/12 , F02F1/14
摘要： PURPOSE:To achieve just enough cooling at each cylinder in equalizing a quantity of cooling water passing in and around each spot of respective cylinders by setting up each of both cooling water return and outlet ports as being sorted to both front and rear opposite sides of this multicylinder engine. CONSTITUTION:A water pump house 12 and a cooling water return port 5 both are formed in a cylinder jacket 1. In addition, a lower tank 13b of a radiator 4 is interconnected to the cooling water return port 5 via a cooling water inlet pipe 14 and the water pump house 12 in order. Likewise, a cooling water outlet 6 is formed in a head jacket 2. In succession, this cooling water outlet 6 is interconnected to an upper tank 13a of the radiator 4 via a cooling water outlet pipe 15. With this constitution, cooling water taken in from the cooling water return port 5 passes through the cylinder jacket 1, a water port 3 and the head jacket 2 in order toward the cooling water outlet 6 at the longitudinal opposite side. Therefore, a quantity of cooling water passing in and around each cylinder is equalized, so that neither-more-nor-less cooling is thus realizable at each cylinder.

105. 发明专利

JPH0711977A TORQUE INCREASING DEVICE FOR GOVERNOR OF DIESEL ENGINE 失效
公开(公告)号：JPH0711977A
公开(公告)日：1995-01-13
申请号：JP18073093
申请日：1993-06-25
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , NAKAMURA TATSUYUKI , YOSHIDA KOZO
IPC分类号： F02D1/02 , F02B3/06 , F02D1/04 , F02D31/00
摘要： PURPOSE:To reduce an error of a torque increasing amount by reducing the slide distance of a torque spring over a case body. CONSTITUTION:A torque pin 7 is forward and backward movably contained in a case body 5 through a torque spring 10 and a protrusion 14 for positioning is formed on the central part 13 of the rear wall 12 of the torque pin 7 with a back toward a front. The protrusion 14 for positioning is fitted in a centering state in the front moving part 11 of the torque spring 10. The front moving part 11 of the torque spring 10 is suppressed from slide friction with the inner wall of the case body 5 and frictional resistance of the torque spring 10 as against a longitudinal expansion contraction size is reduced, whereby the occurrence of an error of a torque up amount is reduced.

106. 发明专利

JPH0711926A PRESSURE ADJUSTER FOR LUBRICATION OIL OF ENGINE 失效
公开(公告)号：JPH0711926A
公开(公告)日：1995-01-13
申请号：JP18073493
申请日：1993-06-25
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , NAKAMURA TATSUYUKI , YOSHIDA KOZO
IPC分类号： F01M1/16
摘要： PURPOSE:To prevent the generation of chattering noise from a pressure adjuster. CONSTITUTION:A branch passage 16 is arranged to the pressfeeding passage 6 of lubrication oil of an engine. A valve seat 19 and a valve chamber 20 are formed in order in the branch passage 16 and a ball valve body 22 inserted in the valve chamber 20 is elasticeally pressed to the valve seat 19 closingly by a coil spring 23. A spring receiver 25 is arranged between the end wall 20a of the valve chamber 20 and the coil spring 23. The vibration of the coil spring 23 in the radial direction is rgulated by bringing the projection part 25a of the spring receiver 25 in frictional contact with the inner periphery surface of the coil spring 23.

107. 发明专利

JPH06221242A FUEL INJECTION CAM SHAFT FOR DIESEL ENGINE 失效
公开(公告)号：JPH06221242A
公开(公告)日：1994-08-09
申请号：JP2752593
申请日：1993-01-22
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , NAKAMURA TATSUYUKI , YOSHIDA KOZO
IPC分类号： F02D1/04 , F02B3/06 , F02M39/02
摘要： PURPOSE:To use a fuel injection cam gear commonly in diesel engines having a different engine speed from each other. CONSTITUTION:A positioning key 5 to be fitted in a fuel injection cam shaft 1 of a diesel engine E consists of a key upper-half part 6 and a key lower-half part 7 with the vertical cross sectional view in the vertical direction A crossing the shaft direction, and the center line 8 of the key upper-half part 6 and the center line 10 of the lower-half part 7 are dislocated from the rotating direction B of the fuel injection cam shaft 1. Since the positioning key 5 is fitted in a key groove 2 of the fuel injection cam shaft 1 with a posture changed at the center line 10, angle of the fuel injection cam shaft 1 against the fuel injection cam gear 3 can be changed to use the fuel injection cam gear 3 commonly in response to the engine speed of an engine to be used.

108. 发明专利

JPH06221187A FUEL INJECTION CAM GEAR FOR DIESEL ENGINE 失效
公开(公告)号：JPH06221187A
公开(公告)日：1994-08-09
申请号：JP2752693
申请日：1993-01-22
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , NAKAMURA TATSUYUKI , YOSHIDA KOZO
IPC分类号： F02D1/16 , F02B3/06 , F02M39/02 , F02M59/10
摘要： PURPOSE:To regulate the angle of an injection cam shaft in relation to a fuel injection cam gear by changing an angle of a registration mark in relation to a key groove and to use a fuel injection cam gear in common to engines different in the working number of revolutions by selecting a plurality of sets of key grooves or registration marks. CONSTITUTION:A key groove 4 on the gear side and a registration mark 6 are formed at the fuel injection cam gear 3 of a diesel engine. The key groove 4 on the gear side is engaged with a positioning key fixed on a fuel injection cam shaft 1. Further, the fuel injection cam gear 3 is interlocked with a crank gear 8 through an idle gear 7 and registration marks 6 and 10 are registered with each other. In this constitution, sets of key grooves 4a and 4b for high speed and low speed rotation and registration marks 6a and 6b, respectively, are provided. Along with the rotation direction of the fuel injection cam gear 3, a phase angle theta2 between the key groove 4b for low speed rotation and the registration mark 6b is set to a value lower than a phase angle theta1 between the key groove 4a for high speed rotation and the registration mark 6a.

109. 发明专利

JPH05288084A 失效
公开(公告)号：JPH05288084A
公开(公告)日：1993-11-02
申请号：JP11227592
申请日：1992-04-03
申请人： KUBOTA KK
发明人： NAGAHAMA MASAHIRO , UMEDA YUZO , MANBA SHUNICHI , YOSHIDA KOZO
IPC分类号： F02D1/04 , F02D31/00
摘要： PURPOSE:To adjust a projection without disassembling it by screwing a projected flap adjustment cap on a front edge opening part of a spring holder storing a torque spring to energize a slider and adjusting the projection of a torque pin by screwing operation of this cap. CONSTITUTION:In a mechanical governor a governor lever 30 of which is constituted of a governor force input lever 31 and a spring force input lever 32, a spring holder 1 of a torque increasing device is provided firmly on the governor force input lever 31, and the head end part of its torque pin 3 is brought into contact with the spring force input lever 32. In this case, it is energized elastically by a torque spring 5. A projection adjustment cap 7 is screwed on a front edge opening 6 of the spring holder 1 storing a slider 2 on which the torque pin 3 is projectively provided. Thereafter, the torque pin 3 is inserted into a pin insertion hole 9 formed on a cap front wall 8, and simultaneously, between the front wall 8 and the slider 2, a spring 10 to inhibit the slider 2 spring constant of which is smaller than the torque spring 5 is interposed in the compressed state.

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