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1. 发明专利

JP2000130253A COOLING DEVICE FOR SIAMESE CYLINDER 失效
公开(公告)号：JP2000130253A
公开(公告)日：2000-05-09
申请号：JP31190799
申请日：1999-11-02
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , KAMATA YASUICHI , HAYATANI AKIRA , YUGAWA MASAJI , YOSHII OSAMU , MORIOKA KAZUYOSHI
IPC分类号： F02F1/14 , F01P3/02 , F02F1/00 , F02F1/10
摘要： PROBLEM TO BE SOLVED: To provide the cooling device of a Siamese cylinder which can cool the part near the head of a continuous thick wall strongly and intend the relative minimizing and lightening of a multicylinder engine and the large outputting of the engine. SOLUTION: A water passage is formed on the part 4a near the head of the continuous thick wall 4 of a Siamese cylinder 2 and the cooling water in the cylinder jackets 8.8 positioned on the right/left of the continuous thick wall 4 is streamed out to a head jacket 22 through the water passage. The water passage is provided with a vertical right/left pair of jacket communicating passages 12.12 for communicating the cylinder jackets 8.8 with the head jacket 22 and plural cooling water road 15 for making the jacket communicating passages 12.12 communicate with each other.

2. 发明专利

JP2000130252A COOLING DEVICE FOR SIAMESE CYLINDER 失效
公开(公告)号：JP2000130252A
公开(公告)日：2000-05-09
申请号：JP31190699
申请日：1999-11-02
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , KAMATA YASUICHI , HAYATANI AKIRA , YUGAWA MASAJI , YOSHII OSAMU , MORIOKA KAZUYOSHI
IPC分类号： F02F1/14 , F01P3/02 , F02F1/00 , F02F1/10
摘要： PROBLEM TO BE SOLVED: To provide the cooling device of a Siamese cylinder which can cool the part near the head of a continuous thick wall strongly and intend the relative minimizing and lightening of a multicylidner engine and the large outputting of the engine. SOLUTION: A cylinder jacket 8 is formed so as to surround a Siamese cylinder 2 and a water road is formed on the part 4a near the head of the continuous thick wall 4 of the Siamese cylinder 2. The water road is provided with right/left jacket communication roads 12.12 formed vertically so as to connect the cylinder jackets 8.8 positioned on both right/left sides of the continuous thick wall 4 with a head jacket 22 and a sideways cooling water road 15 for communicating right/left jacket communicating passages 12.12. The boss parts 5, 5 for tightening the cylinder head are formed continuously on both right/left sides of the continuous thick wall 4 and also respective jacket communication roads 12.12 are positioned inside the boss parts for tightening their respective cylinder heads 5, 5.

3. 发明专利

JP2884303B2 失效
公开(公告)号：JP2884303B2
公开(公告)日：1999-04-19
申请号：JP18876893
申请日：1993-06-30
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , ITO MASAHIRO , OKAMOTO KAZUTOSHI , TSUJI SADAYA , YAMAMOTO NOBUHIRO , HAYATANI AKIRA
IPC分类号： F02D1/02 , F02D31/00

4. 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.

5. 发明专利

JPH0988936A CRANKSHAFT OF ENGINE 失效
公开(公告)号：JPH0988936A
公开(公告)日：1997-03-31
申请号：JP25209795
申请日：1995-09-29
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , HAYATANI AKIRA , KAMATA YASUICHI , SUGIMOTO MASAHIKO
IPC分类号： F16C3/08
摘要： PROBLEM TO BE SOLVED: To increase a displacement in an engine without changing a height of a cylinder block, or reduce the size of the engine without changing the displacement of the engine, and reduce a slap sound on the lower dead center side of a piston. SOLUTION: A swing radius R2 of crankpins 13 of a crankshaft 10 is set larger than a swing radius R1 of a crank arm 12 as well as larger than a radius of support holes of respective bearing walls of a crankcase. A set of theft recessed parts are formed in the respective support holes, and a set of crankpins 13 are constituted so as to pass under them through these theft recessed parts. Respective tip parts 12a of the crank arm 12 and both end parts of a swing radius part 13a of the crankpins 13 are cut off, and the axial directional dimension of the swing radius part 13a is set not more than a shaft directional dimension of a connecting rod large end part 16a, and an interference preventive recessed part 2c formed into a recessed shape in a lower end part of a cylinder is made small.

6. 发明专利

JPH0979378A DEVICE FOR FIXING PISTON PIN TO PISTON MADE OF ALUMINUM ALLOY FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0979378A
公开(公告)日：1997-03-25
申请号：JP23087895
申请日：1995-09-08
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , HAYATANI AKIRA , KAMATA YASUICHI , KOYAMA HIDEYUKI
IPC分类号： F02F3/00 , F16J1/18
摘要： PROBLEM TO BE SOLVED: To prevent loosening of a screw type fixing means, fixing a piston pin, at an early time due to the increase of the temperature of a piston occasioned by operation of an engine. SOLUTION: A screw type fixing means 3 comprises a coupling body 6; a pair of screw shafts 5 made of an iron material; and a pair of nuts 7 made of an iron material. A pair of the screw shafts 5 are securely protruded to the respective parts on both sides of the coupling body 6 and a pin support seat 8 made of an iron metal is fixed at the middle in the longitudinal direction of each screw shaft 5. The coupling body 6 is inserted in the wall of the crown part 9 of a piston 1. Each screw shaft insertion hole 4 of the pin end part 2a of the piston pin 2 is inserted in each leg part 5a of each screw shaft 5 and the pin end part 2a is received by each pin support seat 8. By screw joining a pair of nuts 7 with respective leg parts 5a, the pin end part 2a is securely pressed against the pin support seat 8.

7. 发明专利

JPH08312458A TUNNEL TYPE BEARING DEVICE OF CRANKSHAFT INTERMEDIATE JOURNAL 失效
公开(公告)号：JPH08312458A
公开(公告)日：1996-11-26
申请号：JP12327995
申请日：1995-05-23
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , KAMATA YASUICHI , YAMAMOTO NOBUHIRO , KOYAMA HIDEYUKI , YOTSUTSUJI TOSHIYUKI , HAYATANI AKIRA , SUGIMOTO MASAHIKO
IPC分类号： F02F1/00 , F02F7/00 , F16C9/02
摘要： PURPOSE: To realize the light weight of a bearing wall without reducing its strength, by increasing the durability of the bearing wall itself and carrying out the assembly of a crankshaft easily accurately, as well as eliminating the insertion clearance remained between the support hole of the bearing wall and a bearing case, and eliminating a distortional vibration of the bearing wall and a noise of a crankcase resulting from the insertion clearance. CONSTITUTION: A bearing case 11 of split form is installed in the support hole 22 of a bearing wall 21 formed in a crankcase 2, and the intermediate journal 8a of a crankshaft 8 is journalled by a bearing hole 12 in the center of the bearing housing 11. The bearing case 11 is provided by combining and fixing its upper case 11a and lower case 11b by a pair of left side and right side connecting bolts 14 and 14. While a cut wall 23 cutting the lower part of the support hole 22 is formed at the lower part of the bearing wall 21, the left side and the right side lower half parts of the bearing wall 21 are fastened by a fastening bolt 17, and the bearing case 11 is inserted and fixed in the support hole 22.

8. 发明专利

JPH0828629A CRANKSHAFT DEVICE FOR TWO-CYLINDER FOUR-CYCLE ENGINE 失效
公开(公告)号：JPH0828629A
公开(公告)日：1996-02-02
申请号：JP16569894
申请日：1994-07-19
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , OKAMOTO KAZUTOSHI , KAMATA YASUICHI , YAMAMOTO NOBUHIRO , HAYATANI AKIRA
IPC分类号： F16F15/26
摘要： PURPOSE:To reduce energy loss even in the case that massive error occurs at balance weights when a crankshaft alone is balanced, by easily adjusting the massive error afterward, and reducing the mass of a second balance weight. CONSTITUTION:A fan driving pulley 20 and a flywheel 25 are fixed to a crankshaft 10 in which a crank angle of 180 degrees are shown between a first crank pin 11a and a second crank pin 11b. A first balance weight W1 which suppresses a vibration moment M of the crank shaft 10 is arranged on a crank arm 12a on one end side of the crankshaft 10. A second balance weight W2 is arranged on a flywheel 2 fixed to the other end side of the crankshaft 10.

9. 发明专利

JPH07224690A DIESEL ENGINE WITH GOVERNOR 失效
公开(公告)号：JPH07224690A
公开(公告)日：1995-08-22
申请号：JP1613594
申请日：1994-02-10
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , HAYATANI AKIRA
IPC分类号： F02B63/06 , F02B3/06 , F02B67/00 , F02D1/02 , F02D1/04 , F02D31/00 , F02M39/02
摘要： PURPOSE:To facilitate connection of an oil pressure piping and shorten the size of a projection by arranging a fuel limiting bolt, a stopper rod, and a pressure receive part of a governor lever in a space closer to a cylinder block among the left/right both side spaces of a fuel injection pump. CONSTITUTION:In an engine setting a cylinder axis line 4 in the vertical direction and setting a cylinder head 5 side in the upper side, a fuel injection pump 9 is stored in the case upper part 8 of an injection pump case 7 and a fuel injection cam shaft 11 is stored in the case lower part 10. A governor lever 14, a governor spring 15, and a speed governor lever 16 are arranged in a space 12 in the farther side from a cylinder block 2 in the left/right both side spaces 12, 13 of the fuel injection pump 9 and an interlock lever 19 interlocked with the speed governor lever 16 is provided along the outer face of a wall in the farther side from the cylinder block 2 in the left/right both side walls 17, 18 of the case upper part 8. A fuel limiting bolt, a stopper rod 21, and the pressure receive part 22 of the governor lever 14 are arranged in the space 13.

10. 发明专利

JPH07217453A BOOST CONPENSATOR FOR DIESEL ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH07217453A
公开(公告)日：1995-08-15
申请号：JP1202994
申请日：1994-02-04
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , HAYATANI AKIRA
IPC分类号： F02D1/02 , F02B3/06 , F02D1/10
摘要： PURPOSE:To simplify production so as to improve productivity by inserting and engaging a fork-shaped engaging part of an oscillating lever into an engagingly stopping pin when the oscillating lever is assembled and bringing an arc cam face of the oscillating lever into contact with the front end face of a fuel limiting bolt in production of an engine. CONSTITUTION:In a boost compensator, in which an oscillating lever 9 is oscillated by unbalance force between a boost pressure led into a boost pressure introducing chamber 6 and energizing force of a spring 7 while fuel injection quantity is restricted on the basis of the oscillation posture of the oscillating lever 9, a base end part. of the oscillating lever 9 is journalled to the front end part, of an interlocking rod 8. A stopper rod 12 is supported freely oscillationally in an injection pump case 3, and a fork-shaped engaging part 14 arranged in the point part, of the oscillating lever 9 is engaged in the rear end part of the rod 12 freely removably via an engagingly stopping pin 13. On the back side of the oscillating lever 9, a fuel limiting bolt 15 is arranged, and an arc cam face 16 arranged in the oscillating lever 9 is brought into contact with the front end part of the fuel limiting bolt 15, and consequently, the injection quantity is restricted by spiral advance/retreat of the fuel limiting bolt 15.

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