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公开(公告)号：JPH1162531A
公开(公告)日：1999-03-05
申请号：JP22902197
申请日：1997-08-26
Applicant: MITSUBISHI MOTORS CORP
Inventor： MURATA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To a rotational speed of a cam as desired by surely transmitting a rotation to be transmitted from a camshaft via a non uniform coupling. SOLUTION: In a cam lobe 8 being applied to a variable valve system, two cams 34a and 34b are installed in a peripheral part of a steel pipe 32 externally fitted in a camshaft 4, and this one cam 34 and a flange 30 are integrally formed together. A torque in this camshaft 4 is transmitted to the cam lobe 8 via non uniform coupling 6, and at this time, the cam 34a directly receives the torque to be inputted into the flange 30, thereby making a valve 2a drivable.
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公开(公告)号：JPH08338212A
公开(公告)日：1996-12-24
申请号：JP14785995
申请日：1995-06-14
Applicant: MITSUBISHI MOTORS CORP
Inventor： MURATA SHINICHI , KUBO MASAHIKO , ISOMOTO ATSUSHI
Abstract: PURPOSE: To prevent generation of rattling noise even if torque fluctuates during rotation of a cam in a variable valve system, which is used for performing opening/ closing control of an intake/exhaust valve in an internal combustion engine at the timing complying with an operation condition of the engine, for an internal combustion engine. CONSTITUTION: A variable valve system for an internal combustion engine is provided with a first rotational member 11 interlocking with a crank shaft, a second rotational member 12 which is arranged in the outer circumference of the first rotational member 11 and is provided with a valve driving cam 6, an engaging member 16 eccentric to the first rotational member 11, a first slider member 17 which is installed in the engaging member 16 freely slidably in the radial direction so as to transmit the rotation from the first rotational member 11 to the engaging member 16, and a second slider member 18 transmitting the rotation from the engaging member 16 to the second rotational member 12. An eccentric position adjusting mechanism adjusting an eccentric condition of the engaging member 16 according to an operation condition of an engine is provided, while sliding faces between the respective slider member 17, 18 and the engaging member 16 are prevented from being separated from the engaging member 16.
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公开(公告)号：JPH06173618A
公开(公告)日：1994-06-21
申请号：JP33281292
申请日：1992-12-14
Applicant: TOYOTA MOTOR CORP
Inventor： SHIRABE TAKEO
Abstract: PURPOSE:To reduce valve closing side speed, and restrain the occurrence of a seat hitting sound and a noise by dislocating a reciprocating shaft line of a driven part in a crank mechanism from the shaft center of a cam shaft to the side where a valve closing operation angle becomes larger than a valve opening operation angle. CONSTITUTION:After being converted into linear motion through a crank mechanism, that is, a crank part piston 1a, a connecting rod 3 and a driven part 4, rotation of a cam shaft 1 is transmitted to a valve 11 through a swing arm 9, and the valve 11 is opened and closed. In this case, an offset (epsilon) is set between the shaft center O1 of a journal part 1b in the cam shaft 1 and a reciprocating shaft line L of the driven part 4, that is, the center line of a guide 8. In short, the reciprocating shaft line L of the driven part 4 is dislocated from the shaft center O1 of the cam shaft to the side where an operation angle (theta2) of valve closing operation becomes larger than an operation angle (theta1) of valve opening operation. Thereby, since closing side speed of the valve 11 is reduced, the occurrence of a seat hitting sound and a noise is restrained.
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公开(公告)号：JPS63309703A
公开(公告)日：1988-12-16
申请号：JP14648787
申请日：1987-06-12
Applicant: HONDA MOTOR CO LTD
Inventor： HONDA SHOICHI
IPC: F01L1/10
Abstract: PURPOSE:To obtain a valve system with better efficiency by dividing a connecting rod corresponding to each cam shaft and contriving their connecting mechanism to a cam shaft for each divided connecting rod, in the case of a mechanism in which the rotation of a crank shaft is transmitted to each cam shaft for intake and exhaust valves through a connecting rod. CONSTITUTION:Eccentric shaft parts 6A, 6B arranged off-centering a preset amount from axle center l are provide near the center of a crank shaft 5, being shifted in an axial direction, and the lower end of a connecting rod 7 (7A, 7B) is rotatably connected to each eccentric shaft parts 6A, 6B. On a cylinder head 4, two cam shafts 13A, 13B are arranged keeping a proper clearance and a center shaft 14 is arranged in the center position between respective cam shafts 13A, 13B. In the center shaft 14, eccentric shaft parts 16A, 16B are arranged shifting some amount in the axial direction and the upper end part of the connecting rod 7 is connected to each eccentric shaft parts 16A, 16B. The connecting rod 7 is connected to the center shaft 14 so that an angle made by connecting the center of the center shaft to the connection parts for connecting the center shaft 14 to each of divided rods 7A, 7B may be than 180 deg..
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Patent Agency Ranking
公开(公告)号：JPS63210408A
公开(公告)日：1988-09-01
申请号：JP4105587
申请日：1987-02-24
Applicant: HONDA MOTOR CO LTD
Inventor： SHIOMI KAZUYUKI , IMAKADO SHIYOUJI , MURATA YASUHIKO
Abstract: PURPOSE:To improve the installation work performance of a crankshaft by rotatably supporting the crankshaft into a bearing hole formed on a crankcase and avoiding the need of separating the crankcase on assembly. CONSTITUTION:Bearing holes 10 and 11 are drilled on the opposed side walls 51 and 52 of a crankcase 5, and the journal shaft parts 132 and 133 of a crankshaft 13 are rotatably supported through ball bearings 14 and 15. The crankshaft 13 having the ball bearings 14 and 15 installed is inserted into the bearing holes 10 and 11 from outside the bearing hole 10 having a crank part insertion hole 12. Therefore, the crank part 131 is inserted into the insertion hole 12 and the ball bearings 14 and 15 can be press-fitted into the bearing holes 10 and 11, and the separation of the crankcase can be avoided.
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公开(公告)号：JPS6027705A
公开(公告)日：1985-02-12
申请号：JP13593883
申请日：1983-07-27
Applicant: SUZUKI MOTOR CO
Inventor： FUJIWARA HIDEO
Abstract: PURPOSE:To reduce the weight of a rocker arm by thinning the width of the pressing part of the rocker arm, by a method wherein an upper protrusions are provided on a right and left cotters fixing a retainer and inserting the rocker arm between the protrusions. CONSTITUTION:A retainer 4 is held on the end part of the stem of a beveled valve 1 by a right and left cotters 6. A protrusion 8 is formed above the cotter 6 and the pressing part 10 of a rocker arm 9 is arranged in a recessed part to be formed between the protrusions 8. The pressing part side of the rocker arm can be made thin, the rocker arm can be made light in weight and inertia force resulting from movement can be made small as compared with an article to be obtained by forming the pressing part of the rocker arm in an inverted recessed state.
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70.发明申请
公开(公告)号：WO02053881A1
公开(公告)日：2002-07-11
申请号：PCT/EP2002/000006
申请日：2002-01-02
CPC classification number: F01L1/185 , F01L1/10 , F01L1/12 , F01L1/26 , F01L9/02 , F01L9/04 , F01L13/0005 , F01L13/0021 , F01L13/0063 , F01L2009/0411 , F01L2013/0068 , F01L2105/00 , F01L2820/00
Abstract: The invention relates to a mechanical valve gear that can be variably adjusted for at least one gas shuttle valve (1) in a piston internal combustion engine, said valve being provided with at least one closing spring (2). Said valve gear comprises a drive element (13) for generating a stroke motion that acts against the force of the closing spring (2) on the gas shuttle valve (1) and a stroke transmission element (4) located between the drive element (13) and the gas shuttle valve (1). Said transmission element acts on the gas shuttle valve (1) in the direction of the displacement axis (14) of the latter and the stroke path of the stroke transmission element can be modified in the direction of the displacement axis (14) by means of an adjustable guide element (11). The stroke transmission element consists of a pivoting element (8), whose end that acts in the direction of the displacement axis (14) interacts with the gas shuttle valve and whose end that faces away from the gas shuttle valve (1) is connected to the drive element (13). Said pivoting element can be directed in a pivoting manner back and forth on a guide element (11) that is configured as a radial cam (11.1).
Abstract translation: 本发明涉及一种可变可调节的机械阀齿轮用于至少一个用闭合弹簧（2）设置有气体交换阀（1）至一个往复式内燃机，与驱动装置（13），用于产生针对所述闭合弹簧（2）的（1）上作用Hubewegung气体交换阀的力 和所述驱动装置（13）和气体交换阀（1）之间布置Hubübertragungsmittel（4），其作用于运动（14）的轴线的方向上的气体交换阀（1），并通过可调节的引导构件，其行程中的运动（14）的轴线的方向 （11）是可变的，并且通过元件形成（8）的枢转，这与其在移动（14）端部到气体交换阀的轴线的方向相互作用，并且与它的气体交换阀（1）背离与所述驱动装置（13）在连接的端部远离 并形成一个控制凸轮（11.1）引导元件（11）背面上，并herschwenkbar引导。
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