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公开(公告)号：DE60301539T2
公开(公告)日：2006-06-14
申请号：DE60301539
申请日：2003-11-07
Applicant: MAZDA MOTOR
Inventor： ASAI AKIRA , FUKUMA MASAKI , NAITO MASAHIRO , SHIMIZU KOUICHI , TAKAHASHI IKUMA , TOMIZAWA KAZUHIRO
Abstract: In the variable valve timing system according to the present invention, portions of the intake-side advancing hydraulic line and a retarding hydraulic line respectively constitute annular grooves 104 and 113 for advancing and retarding provided on the intake camshaft 5 bearing surface 5a of the cam cap 4 which supports the camshafts 5 and 6. In addition, portions of the advancing hydraulic line and the retarding hydraulic line for exhaust respectively constitute annular grooves for advancing and retarding 123 and 133 provided on the exhaust camshaft 6 bearing surface 4b of the cam cap 4. Moreover, the annular groove for retarding 113 on the intake camshaft 5 bearing surface 4a and the annular groove for advancing 123 on the exhaust camshaft 6 bearing surface 4b are respectively provided in the center in the width direction of their respective bearing surfaces 4a and 4b.
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公开(公告)号：DE4416542B4
公开(公告)日：2005-08-25
申请号：DE4416542
申请日：1994-05-10
Applicant: MAZDA MOTOR , NITTAN VALVE
Inventor： FUKUMA MASAKI , DEGUCHI HIROAKI , NISHIDA MASAMI , ASAI AKIRA , AINO HIROSHI
Abstract: An internal combustion engine is equipped with a valve timing controller capable of minimizing the electric power consumption and frictional wear of elements. The valve timing controller can vary the valve timing of valves. A camshaft is moved axially forwardly or rearwardly by electrically energizing an outer solenoid clutch or a brake releasing solenoid, respectively. An axial movement of the camshaft results in a change in valve timing. With the exception of a transient period during which the valve timing is being varied, both the brake releasing solenoid and the outer clutch are electrically deenergized to thereby reduce the electric power consumption, and both of them are maintained out of contact with a displaceable disc 13 to thereby reduce frictional wear thereof.
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公开(公告)号：DE60301539D1
公开(公告)日：2005-10-13
申请号：DE60301539
申请日：2003-11-07
Applicant: MAZDA MOTOR
Inventor： ASAI AKIRA , FUKUMA MASAKI , NAITO MASAHIRO , SHIMIZU KOUICHI , TAKAHASHI IKUMA , TOMIZAWA KAZUHIRO
Abstract: In the variable valve timing system according to the present invention, portions of the intake-side advancing hydraulic line and a retarding hydraulic line respectively constitute annular grooves 104 and 113 for advancing and retarding provided on the intake camshaft 5 bearing surface 5a of the cam cap 4 which supports the camshafts 5 and 6. In addition, portions of the advancing hydraulic line and the retarding hydraulic line for exhaust respectively constitute annular grooves for advancing and retarding 123 and 133 provided on the exhaust camshaft 6 bearing surface 4b of the cam cap 4. Moreover, the annular groove for retarding 113 on the intake camshaft 5 bearing surface 4a and the annular groove for advancing 123 on the exhaust camshaft 6 bearing surface 4b are respectively provided in the center in the width direction of their respective bearing surfaces 4a and 4b.
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公开(公告)号：DE4410034A1
公开(公告)日：1994-09-29
申请号：DE4410034
申请日：1994-03-23
Applicant: MAZDA MOTOR
Inventor： ASAI AKIRA , NISHIDA MASAMI , FUKUMA MASAKI
Abstract: A valve timing gear system of an engine opens and closes a valve by means of an oscillating cam which is swivelled by the rotation of a control cam. The control cam has a cam face and is made to rotate by the engine and the oscillating cam has a cam face in sliding contact with the valve and a cam follower in sliding contact with the cam face of the control cam. The cam face of the control cam and the cam face of the oscillating cam are designed in such a way that an acceleration component of the oscillating cam in a positive range of a valve lift acceleration, which is defined as a sum of the acceleration component of the control cam and the acceleration component of the oscillating cam, is greater than that of the control cam.
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公开(公告)号：DE4416542A1
公开(公告)日：1994-11-17
申请号：DE4416542
申请日：1994-05-10
Applicant: MAZDA MOTOR , NITTAN VALVE
Inventor： FUKUMA MASAKI , DEGUCHI HIROAKI , NISHIDA MASAMI , ASAI AKIRA , AINO HIROSHI
Abstract: An internal combustion engine is equipped with a valve timing controller capable of minimizing the electric power consumption and frictional wear of elements. The valve timing controller can vary the valve timing of valves. A camshaft is moved axially forwardly or rearwardly by electrically energizing an outer solenoid clutch or a brake releasing solenoid, respectively. An axial movement of the camshaft results in a change in valve timing. With the exception of a transient period during which the valve timing is being varied, both the brake releasing solenoid and the outer clutch are electrically deenergized to thereby reduce the electric power consumption, and both of them are maintained out of contact with a displaceable disc 13 to thereby reduce frictional wear thereof.
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Patent Agency Ranking
公开(公告)号：DE112017001699T5
公开(公告)日：2018-12-20
申请号：DE112017001699
申请日：2017-03-13
Applicant: MAZDA MOTOR
Inventor： ASAKURA YOUJI , TONE HIDEO , ASAI AKIRA , KANAMURA MICHIHIRO , FURUYA SHOICHI
Abstract: Diese Auslassnockenwelle (2) ist mit einem Wellenteil (5) und Nockenteilen (6 bis 13) versehen, die auf dem Außenumfang des Wellenteils (5) bereitgestellt sind. Der Wellenteil (5) weist Löcher (16, 17, 19) auf, die an vorgegebenen Positionen auf der Außenumfangsoberfläche des Wellenteils (5) bereitgestellt sind. Die Löcher (16, 17, 19) sind so ausgebildet, dass sie sich von einer Außenseite des Wellenteils (5) in die Richtung des Zentrums des Wellenteils (5) in einer radialen Richtung nach und nach kegelförmig verengen.
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公开(公告)号：DE4410034B4
公开(公告)日：2006-08-24
申请号：DE4410034
申请日：1994-03-23
Applicant: MAZDA MOTOR
Inventor： ASAI AKIRA , NISHIDA MASAMI , FUKUMA MASAKI
Abstract: A valve operating system of an engine opens and closes a valve by a swing cam being swung by rotation of an operating cam. The operating cam has a cam surface and is rotated by the engine, and the swing cam has a cam surface in sliding contact with the valve and a cam follower in sliding contact with the cam surface of the operating cam. The cam surface of the operating cam and the cam surface of the swing cam are formed so that an acceleration component of the swing cam is larger than that of the operating cam in a positive region of a valve lift acceleration defined as a sum of the acceleration component of the operating cam and the acceleration component of the swing cam.
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公开(公告)号：JPH11280431A
公开(公告)日：1999-10-12
申请号：JP8700598
申请日：1998-03-31
Applicant: Mazda Motor Corp , マツダ株式会社
Inventor： ASAI AKIRA , ARAKI KEIJI
Abstract: PROBLEM TO BE SOLVED: To prevent lowering of hydraulic fluid pressure and secure the high operational responsiveness of a VVT which attempts compatibility of the improvement of input with the reduction of fuel consumption by relatively rotating the camshaft against a cam pulley and changing the opening/closing operational timing of an intake valve by reducing a hydraulic fluid leakage quantity in the bearing part of the first journal of a camshaft in a contained type engine equipped with the VVT which the contained angles of the intake valve and exhaust valve are narrow. SOLUTION: A second opened groove 67 opened by extending over the approximately half periphery of the lower side of a bearing surface on a camshaft end side and a first opened groove 68 opened by extending over the approximately half periphery of an upper side on an opposite side are formed in the bearing part 4 of a first journal. In a camshaft, a timing advance side passage 71 communicated with the first opened groove 68 while being connected to the timing advance side pressure receiving chamber of a VVT 10 and a timing lag side passage 70 communicated with the second opened groove 67 while being connected to the timing lag side pressure receiving chamber of the VVT 10, are arranged.
Abstract translation: 要解决的问题：为了防止液压流体压力的降低并且确保VVT的高操作响应性，其通过相对于凸轮轴相对于凸轮滑轮相对地旋转而改变输入的改进与降低燃料消耗，并且改变打开/关闭 进气门的操作定时通过减少装有VVT的容纳型发动机的凸轮轴的第一轴颈的轴承部分中的进气阀和排气门的夹紧角度窄的液压流体泄漏量。 解决方案：通过在凸轮轴端侧的支承面的下侧的大致半个周边上延伸的第二开口槽67和通过在相对侧的上侧的大致半个周边上延伸的第一开口槽68 形成在第一轴颈的轴承部分4中。 在凸轮轴中，与VVT 10的定时提前侧压力接收室连接的第一开放槽68连通的定时提前侧通路71和与第二开放槽67连通的定时滞后侧通路70，同时连接到 VVT 10的定时侧压力接收室配置。
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公开(公告)号：JPH11280430A
公开(公告)日：1999-10-12
申请号：JP8693298
申请日：1998-03-31
Applicant: Mazda Motor Corp , マツダ株式会社
Inventor： ASAI AKIRA , ARAKI KEIJI
CPC classification number: F02B75/22 , F01L1/024 , F01L2001/34433
Abstract: PROBLEM TO BE SOLVED: To reduce cost by using in common valve cases, etc., arranged with OCV housed at respective cylinder rows, in providing VVT for changing a rotation phase to the crank shaft of a cam shaft by relatively rotating the cam shaft and a cam pulley through supplying working fluid to a spark advance or delay side pressure receiving chambers, into a V-shaped engine E having two right and left cylinder rows.
SOLUTION: A common valve case 40, for covering the opening part of cylinder head cover 30 and housing an OCV 4 with crossing at right angle, is arranged in each of banks A and B, respectively. An intermediate member is provided which is secured to the bearing parts 4 of No.1 journal, while formed of an oil path, generating the opening part to be inserted into the insertion part of the valve case 40 to communicate the OCV 44 and an oil path in the bearing part 4, in the inside. The valve case 40 is arranged so that the OCV 44 can be in the front side than an intermediate member in the front side bank A, being inverted fore and rear in the rear side bank B.
COPYRIGHT: (C)1999,JPOAbstract translation: 要解决的问题：为了通过使用以相应气缸列容纳的OCV布置的普通阀壳等来降低成本，通过相对地旋转凸轮轴来提供用于将旋转相位改变到凸轮轴的曲轴的VVT，以及 通过将工作流体提供给火花提前或延迟侧压力接收室的凸轮滑轮，具有两个左右气缸排的V形发动机E. 解决方案：分别用于覆盖气缸盖盖30的开口部分并且以直角交叉的方式容纳OCV 4的普通阀壳体40。 提供一个中间构件，其固定在一个轴颈的轴承部分4上，同时形成一个油路，从而产生一个开口部分，以便插入到阀壳40的插入部分中以连通OCV 44和一个油 在轴承部分4的内部。 阀壳40被配置成使得OCV 44可以位于前侧堤A的中间构件的前侧，并且在后侧堤B中前后倒转。
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公开(公告)号：JPH11218011A
公开(公告)日：1999-08-10
申请号：JP3375498
申请日：1998-01-30
Applicant: MAZDA MOTOR
Inventor： ASAI AKIRA , NAKAMOTO TOSHIAKI , SUZUKI TORU
Abstract: PROBLEM TO BE SOLVED: To enable a fixed side member to function as a guide for temporarily receiving a belt when the timing belt is assembled by setting the outer peripheral diameter of a fixed side member and the diameter of a root circle of a timing pulley adjacent to the fixed side member in a valve timing variable mechanism to about the same diameter, and improve the ability to assemble a timing belt. SOLUTION: With the device, a valve timing variable mechanism 15 for changing the turning phases of a timing pulley 5 and a camshaft 14, is provided, and a turning member 18 and a fixed side member 21 of the valve timing variable mechanism 15 are provided on the same axis as the camshaft 14. The fixed side member 21 is fixed to the front end of the timing pulley 5 and the turning member 18 is fixed to the camshaft 14 to bring the timing pully 5 and the camshaft 14 into a fitting state where they can relatively turn. In this case, the outer peripheral diameter D1 of the fixed side member 21 and the diameter D2 of a root circle 5b of the timing pulley 5 adjacent to the fixed side member are set to about the same diameter.
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