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1. 发明专利

JPH0842394A SOUNDPROOF OIL PAN 失效
公开(公告)号：JPH0842394A
公开(公告)日：1996-02-13
申请号：JP18111494
申请日：1994-08-02
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F02B77/13 , F01M11/00 , F02F7/00
摘要： PURPOSE:To reduce noise in the way of a lighter weight and a lower cost by arranging a holed thin plate member in part of a lubricant storage container. CONSTITUTION:An oil pan 1 has an almost rectangular parallelopiped shaped metal container 2 and a holed iron thin plate 3 fixed to the preset positions of the bottom face 2a and the side face 2b of the metal container 2 with spot welding, so that the severe movement of lubricant 8 can be restrained and noise caused by the oil pan 1 can be reduced.

2. 发明专利

JPH08334033A INTAKE AIR DUCT FOR SOUNDPROOF ENGINE GENERATOR 失效
公开(公告)号：JPH08334033A
公开(公告)日：1996-12-17
申请号：JP13895595
申请日：1995-06-06
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F02B63/04 , F02B77/13
摘要： PURPOSE: To reduce a noise, and enhance ventilating performance in a soundproof engine generator. CONSTITUTION: A first wind introducing case 13 having an intake wind port 11 on the upper side is arranged so as to cover an intake air port of a soundproof case 3, and a second wind introducing case 16 having an intake wind port 17 on the lower side is arranged so as to house the first wind introducing case 13. A passage between the first wind introducing case 13 and the second wind introducing case 16 is formed as a rising wind passage 18 in which outside air rises, and a wire net 20 having the prescribed opening area is arranged so as to become oblique to the flow of a wind in its rising wind passage 18.

3. 发明专利

JPH0842395A SOUNDPROOF OIL PAN 失效
公开(公告)号：JPH0842395A
公开(公告)日：1996-02-13
申请号：JP18111594
申请日：1994-08-02
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F01M5/00 , F01M11/00 , F01P3/20 , F02F7/00
摘要： PURPOSE:To provide less noise for an oil pan in the way of a lighter weight and a lower cost by conveying vibration between materials, different in vibration property. CONSTITUTION:An oil pan 1 has a metal container 3a constructed by a metal plate 3 as the first layer, a resin container 5a, more flexible than the metal container 3a in a preset width, placed on the metal container 3a and attenuation liquid 4 as the second layer laid in a gap between both containers 3a, 5a. The vibration energy of oil drops when colliding with the metal container 3a is attenuated by the elastic deformation of the resin 5 to reduce noise emitted from the oil pan 1.

4. 发明专利

JPH06173793A OIL TANK TYPE AIRCLEANER 失效
公开(公告)号：JPH06173793A
公开(公告)日：1994-06-21
申请号：JP35309892
申请日：1992-12-11
申请人： KUBOTA KK
发明人： TSUKIJI KATSUSADA , YAMADA SETSUO , O TAKESHI
IPC分类号： F02M35/026
摘要： PURPOSE:To restrain oil from running out, which leaks from an ambient air inflow port to the outside since oil counter-flows due to blow-back of gas in an oil tank type air cleaner. CONSTITUTION:An oil tank 3 is removably attached to the lower part of a case body 2 of an aircleaner 1. In the case body 2, an ambient air inverting chamber 4, a filter chamber 5 and a purified air outlet chamber 6 are arranged upward in that order, and are communicated with one another, and further, an ambient air suction port 7 in the upper part of the case body 2 is communicated with the ambient air inverting chamber 4 through the intermediary of an ambient air suction passage 8 which longitudinally pierces the center part of the case body 2. An impingement plate 10 defining therein a plurality of air communication holes 9 is provided in the ambient air inverting chamber 4 so that the impingement plate 10 faces the outlet 8a of the ambient air suction passage 8.

5. 发明专利

JP2000032827A COMBINE HARVESTER 失效
公开(公告)号：JP2000032827A
公开(公告)日：2000-02-02
申请号：JP20013298
申请日：1998-07-15
申请人： KUBOTA KK
发明人： ONO TAKAYUKI , FUJITA SHIGEO , O TAKESHI
IPC分类号： A01D41/12 , A01D69/00
摘要： PROBLEM TO BE SOLVED: To obtain a combine harvester configured as to be capable of quickly detecting a blocking in a part of a conveying system and signaling to an operator. SOLUTION: This combine harvester is installed with a controlling system 25 setting the conveying time of a reaped rod to pass between a root sensor 23 and rod length sensor 24, and turns-on a lamp 27, a buzzer 28 and forcedly stops the engine when the rod length sensor 24 can not detect the reaped rod within the set time after detecting the rods by the root sensor 23.

6. 发明专利

JPH10184339A EXHAUSTER FOR 4-CYLINDER ENGINE 失效
公开(公告)号：JPH10184339A
公开(公告)日：1998-07-14
申请号：JP34436596
申请日：1996-12-25
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F01N1/06
摘要： PROBLEM TO BE SOLVED: To provide an exhauster for 4-cylinder engine, which can lower the exhaust noise. SOLUTION: In an exhauster for a 4-cylinder engine, a first exhaust manifold 6a, which connects a first exhaust pipe 9 with a second exhaust pipe 10, a second exhaust manifold 8a, which connects a third exhaust pipe 11 with a fourth exhaust pipe 12, are provided. The first exhaust manifold 6a and the second exhaust manifold 8a are formed into nearly the same shape and symmetrically with the right and left, while an interference reducing muffler 26, which extends in the longitudinal direction in which the cylinders are arranged and which is of almost a cylindrical shape, is provided. In this case, a first exhaust port 5a of a first confluent pipe 14a and a second exhaust port 7a of a second confluent pipe 15a are connected with the interference reducing muffler 26. In addition, an interval between two exhaust ports 5a and 7a is set at a prescribed length (d) so that the pulsation of the exhaust coming out of the exhaust ports 5a, 7a is canceled with each other at the prescribed engine speed. With this constitution, the final noise which is released from a muffler outlet 27 toward the outside can be lessened.

7. 发明专利

JPH09177533A NOISE REDUCING DEVICE FOR SURROUNDED ENGINE 失效
公开(公告)号：JPH09177533A
公开(公告)日：1997-07-08
申请号：JP33439295
申请日：1995-12-22
申请人： KUBOTA KK
发明人： NISHIKAWA KOZO , O TAKESHI
IPC分类号： F01N1/00 , F02B77/13 , G10K11/16 , G10K11/178
摘要： PROBLEM TO BE SOLVED: To reduce the noise of an surrounded engine with a simple structure. SOLUTION: This device is constituted in such a manner that the noise of the engine generator enclosed by a sound insulating case 2 is reduced by an active noise control(ANC). An exhaust duct case 1 and a horizontal duct 75 are provided so as to communicate with the air hole 10 of the sound insulating case 2, and the downstream end part of an exhaust-side upward air passage 81 in which an exhaust side speaker 47 is arranged within the exhaust duct case 1 is allowed to communicate with a duct outlet 35 in the state where it is not vertical but inclined to the extending direction S of the exhaust side upward air passage 81. Thus, a steady wave can be prevented from being generated in the opening 74 of the exhaust side upward air passage 81.

8. 发明专利

JPH0886255A INTAKE DEVICE FOR FOUR-CYLINDER DIESEL ENGINE 失效
公开(公告)号：JPH0886255A
公开(公告)日：1996-04-02
申请号：JP22125894
申请日：1994-09-16
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F02M35/024 , F02B3/06 , F02M35/104
摘要： PURPOSE: To perform the uniform feed of intake air and to reduce both the occurrence of intake resistance and the generation of noise. CONSTITUTION: A filter element 5 and an air cleaning chamber 6 are arranged in a cleaner case 7. An air cleaner 3 having two air cleaning outlets 2a and 2b to discharge air in the air cleaning chamber 6 and an intake manifold 20 having intake air inlets 21a and 21b communicated with clean air outlets 2a and 2b, respectively, are provided. Further, the intake air inlets 21a and 21b of an intake manifold 20 are located in a middle position between branch pipes 22a and 22b to feed intake air to two cylinders and branch pipes 22c and 22d. By discharging air sucked through the outside air suction part 4 of the air cleaner 3 through two clean air outlets 2a and 2b, the flow of intake air is equally divided into two flows in the air cleaner 3.

9. 发明专利

JPH0828233A VALVE SYSTEM FOR OVERHEAD DRIVE TYPE MULTIPLE-VALVE ENGINE 失效
公开(公告)号：JPH0828233A
公开(公告)日：1996-01-30
申请号：JP15984194
申请日：1994-07-12
申请人： KUBOTA KK
发明人： O TAKESHI
IPC分类号： F01M1/06 , F01L1/26 , F01M9/10
摘要： PURPOSE:To decrease the sliding resistance of a valve bridge by penetratingly providing an oil discharge hole from the insertion hole of the valve bridge toward the outer face of the valve bridge so as to face the inlet of the oil discharge hole to a sliding face between the insertion hole and a support shaft and face the outlet of the discharge hole to the outer face of the valve bridge. CONSTITUTION:An oil discharge hole 14 is penetratedly provided from the insertion hole 3 of a valve bridge 2 toward the outer face 12 of the valve bridge 2 so that, for example, when the valve bridge 2 lowers to a support shaft 1, lubricating oil covering a sliding face 11 is guided from the inlet 14a of the oil discharge hole 14 to its outlet 14b. Therefore, if impurities such as dust are mixed in the lubricating oil guided to the insertion hole 3, the impurities in the lubricating oil are also discharged to the outside of the valve bridge 2 via the oil discharge hole 14 by following the flow of this lubricating oil. Moreover, contact area between the valve bridge 2 and the support shaft 1 becomes smaller by a space of the oil discharge hole 14 opened in the insertion hole 3 so that sliding resistance in raising/lowering of the valve bridge 2 is decreased.

10. 发明专利

JPH07127450A NOISE INSULATION TYPE ENGINE 失效
公开(公告)号：JPH07127450A
公开(公告)日：1995-05-16
申请号：JP27583893
申请日：1993-11-05
申请人： KUBOTA KK
发明人： MORIMOTO YOSUKE , OKAMOTO KAZUTOSHI , KAMATA YASUICHI , MIYAZAKI MANABU , O TAKESHI , OKAZAKI MASAO , TSUJI SADAYA
IPC分类号： F01P5/02 , F01P7/04 , F01P7/08
摘要： PURPOSE:To prevent a main switch for an electric fan from being left turned-ON and turned-OFF by a method wherein a key switch for an engine body is arranged as a main switch for a motor-operated fan drive circuit. CONSTITUTION:A circuit 67 for an engine body is connected to a power source 55 through a key switch 56. When the key switch 56 is set to an ON-position, energization of a circuit 67 for an engine body and a power source 55 is practicable. When the key switch is set to an OFF-position, energization is impracticable. An electric fan 37 is connected to the power source 55 through an electric fan driving circuit 54 and a key switch 56. Since the key switch 56 is arranged as a main switch for the motor-operated fan drive circuit 54, when operation of an engine body 2 is started, by setting the key switch 56 to an ON position, the main switch of the electric fan drive circuit 54 is turned ON and by setting it to an OFF position, the main switch is turned OFF. Thus, the main switch is prevented from being left turned ON.

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