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1. 发明专利

JPH10280929A CONTROLLING DEVICE OF VALVE CHARACTERISTICS FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10280929A
公开(公告)日：1998-10-20
申请号：JP8671297
申请日：1997-04-04
申请人： TOYOTA MOTOR CORP
发明人： HASEGAWA TADAO , SUGIMOTO ATSUSHI , MORIYA YOSHITO , IDONO NORIYUKI
IPC分类号： F01L1/08 , F01L1/14 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To realize smoother alteration of the characteristics of valve including the prevention of the damage of a solid cam in a controlling device of valve characteristics for internal combustion engines which alter characteristics of valves at the suction side or the exhaust side in accordance with the movement of the solid cam. SOLUTION: A camshaft 10 at the suction side is supported rotatable and movable in its axial direction with suitable bearings. A suction side cam 11 is a solid cam and the nose height of its cam surface 11a varies continuously in the axial direction of the camshaft 10. There is provided a cam follower 25 on the top surface 19c of a valve lifter 19 and its swinging direction coincides with the axial direction of the camshaft 10. The cam follower 25 is formed in a curved surface having a predetermined curvature on its upper surface (slidable contacting surface) 25a.

2. 发明专利

JPH10266819A VALVE CHARACTERISTICS CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10266819A
公开(公告)日：1998-10-06
申请号：JP7548797
申请日：1997-03-27
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO , SUGIMOTO ATSUSHI , HASEGAWA TADAO , ITONO NORIYUKI
IPC分类号： F01L1/08 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide larger variety of characteristics of valves (lift controlled variable) by a valve characteristics controller for an internal combustion engine which is equipped with an intake side or exhaust side valve comprising a plurality of valves per one air cylinder. SOLUTION: An intake side camshaft 10 is supported on a cylinder head 9 so as to be rotated and moved in the axial direction of the cylinder head 9 by a bearing 22 arranged between respective intake side cams 11 of a 1-cylinder 4-valve engine. The intake side cams 11 are solid cams, and the cam nose height of the cam surfaces 11a of the intake side cams 11 are changed continuously in the axial direction of the cam shaft 10. Intake side valves 18 which are driven to be opened and closed in response to the intake side cams 11 arranged by sandwiching the bearing 22, are respectively arranged having θB inclination angles against perpendicular shafts V in a direction where an interval between the valve lifters 19A, 19B of the intake side valves 18 is widened.

3. 发明专利

JP2006125219A Valve characteristic control device for internal combustion engine 有权
标题翻译：用于内燃机的阀门特征控制装置
公开(公告)号：JP2006125219A
公开(公告)日：2006-05-18
申请号：JP2004311323
申请日：2004-10-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HASEGAWA TADAO , MORIYA YOSHITO , TAKAGI NOBORU
IPC分类号： F02D13/02 , F02D41/10
CPC分类号： F01L13/0015 , F01L1/34 , F01L2800/00 , F01L2800/10 , F02D13/0219 , F02D13/0261 , F02D13/0265 , F02D41/0002 , F02D41/10 , F02D2041/001 , Y02T10/18 , Y02T10/42
摘要： PROBLEM TO BE SOLVED: To suppress excessive increase of actual valve overlap quantity in relation to target valve overlap quantity during transition operation.
SOLUTION: When target valve timing of another valve changes to a valve overlap quantity reducing side through master control and slave control in one valve under master control and another valve under slave control, actual valve overlap quantity OVR is changed toward target valve overlap quantity OVP by slave control. During such transition operation, actual valve timing of another valve by slave control is changed in good response in relation to change of target valve timing. That is done since slave control is adopted to one of quicker response speed of two variable valve mechanisms during the transition operation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：抑制过渡操作期间与目标阀重叠量相关的实际阀重叠量的过度增加。
解决方案：通过主控制下的一个阀门和从控制下的另一个阀门，通过主控制和从控制，另一个阀门的目标阀门正时更改为阀重叠量减少侧，实际阀重叠量OVR向目标阀重叠数量OVP由从控制。在这种转换操作期间，通过从属控制的另一个阀的实际气门正时关系相对于目标气门正时的变化而有良好的响应。这是因为在过渡操作期间采用从控制到两个可变阀机构的更快的响应速度之一。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JPH11141313A VALVE TIMING VARYING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11141313A
公开(公告)日：1999-05-25
申请号：JP30599697
申请日：1997-11-07
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO , SUGIMOTO ATSUSHI , HASEGAWA TADAO
IPC分类号： F01L1/34 , F01L1/344 , F02D13/02 , F02D41/22
摘要： PROBLEM TO BE SOLVED: To suppress deterioration in accuracy in varying a valve overlapping period in a valve timing varying device which varies valve timings of intake and exhaust valves. SOLUTION: A first valve timing variable mechanism (first VVT) 13 is arranged on an intake cam shaft 11, while a second valve timing variable mechanism (second VVT) 14 is arranged on a crack shaft 15. A cam pulley 38 arranged on an exhaust cam shaft 12, a camp pulley 38 of the first VVT 13, and a crack pulley 39 of the second VVT 14 are driven-connected by means of a timing belt 37. A rotational phase of the intake cam shaft 11 is varied by the fist VVT 13, and the valve timing of an intake valve 23 is also varied. The rotational phases of the intake cam shaft 11 and the exhaust cam shaft 12 are varied by the second VVT 14. In addition, the valve timings of the intake valve 23 and an exhaust valve 24 are simultaneously varied.

5. 发明专利

JPH1172031A VALVE CHARACTERISTICS CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH1172031A
公开(公告)日：1999-03-16
申请号：JP31519497
申请日：1997-11-17
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO , SUGIMOTO ATSUSHI , HASEGAWA TADAO
IPC分类号： F01L1/34 , F01L1/46 , F01L13/00 , F02D13/02 , F02D45/00 , F02P7/067
摘要： PROBLEM TO BE SOLVED: To perform a proper cam position control by sensing accurately the cam moving position along the axis of the cam shaft. SOLUTION: An intake cam shaft 22 of an engine is equipped with a part to be sensed 74 as reference extending straight in the axial direction and a part to be sensed 75 for the amount of movement extending spirally in the axial direction. In the neighborhood of the intake cam shaft 22, an electromagnetic pickup 76 is fixed to generate pulses in accordance with passage of each part to be sensed 74 and 75. When the cam shaft 22 rotating makes movement in the axial direction, the timing of pulses generated by the pickup 76 in corresponding with the part to be sensed 74 for reference remains unchanged, while the timing of pulses generated by the pickup 76 in corresponding with the part to be sensed 75 varies. On the basis of the two sorts of pulse generating timings, the moving position of the intake cam along the axis of the cam shaft 22 is sensed accurately.

6. 发明专利

JPH10121926A VALVE LIFTER SUPPORTING STRUCTURE IN INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10121926A
公开(公告)日：1998-05-12
申请号：JP28240596
申请日：1996-10-24
申请人： TOYOTA MOTOR CORP
发明人： HASEGAWA TADAO , SUGIMOTO ATSUSHI
IPC分类号： F01L1/08 , F01L1/14 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To control the turning in a lifter bore without deteriorating slidability of a valve lifter, enlarging a cylinder head and increasing mass of moving parts of a valve driving device. SOLUTION: An inlet side valve 18 is connected to an inlet cam 11 through a valve lifter 19 which is supported in a lifter bore 22. A cam follower 27 is rotatably supported on the upper face 19c of the valve lifter 19 along a cam face 11a. On the inner circumferential surface of the lifter bore 22, a fitting groove is formed so as to lie along the driving direction of the inlet side valve 18, while on the outer surface 19a of the valve lifter 19, a projection engaging part 24 which engages with the fitting groove 23, is provided then the projection engaging part 24 is fitted to the engaging groove 23. The oscillating direction of the cam follower 27 is determined in the rotating axis direction of the inlet side cam shaft 10 by engaging the engaging groove with a protrusive engagement part 24. In this case the groove and projective engaging part 24 should be located at an intermediate position between the either side of which is in the rotating axis direction of the inlet side cam shaft 10 and the either side of which is in the orthogonal direction to the rotating axis direction of the inlet cam shaft 10.

7. 发明专利

JP2007187098A Variable valve timing device 审中-公开
标题翻译：可变阀门定时装置
公开(公告)号：JP2007187098A
公开(公告)日：2007-07-26
申请号：JP2006006172
申请日：2006-01-13
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： YOKOYAMA TOMO , MORIYA YOSHITO , ITO YUJI , HASEGAWA TADAO , HATTORI MASATAKA , TAKENAKA AKIHIKO
IPC分类号： F01L1/34
CPC分类号： F01L1/352
摘要： PROBLEM TO BE SOLVED: To provide a VVT mechanism with a plurality of link mechanisms whose failures are detected.
SOLUTION: The intake VVT mechanism comprises the link mechanism (A) and the link mechanism (B) connected to an intake cam shaft for operating to change the phase of an intake valve, a control pin (A)2034 for sliding in a guide groove (A)2041 of a guide plate 2040 to operate the link mechanism (A), and a control pin (B)2134 for sliding in a guide mechanism (B)2042 of the guide plate 2040 to operate the link mechanism (B). When the control pin (A)2034 and the control pin (B)2134 are moved in the direction of delaying the phase until the control pin (A)2034 abuts on the end of the guide groove (A)2041, the control pin (B)2134 is separated from the end of the guide groove (B)2042.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有检测到故障的多个链路机构的VVT机构。解决方案：进气VVT机构包括连接到进气凸轮轴的连杆机构（A）和连杆机构（B），用于操作以改变进气门的相位，控制销（A）2034用于滑动用于操作连杆机构（A）的导向板2040的引导槽（A）2041和用于在导向板2040的引导机构（B）2042中滑动的控制销（B）2134，以操作连杆机构 B）。当控制销（A）2034和控制销（B）2134沿着延迟相位的方向移动，直到控制销（A）2034与导向槽（A）2041的端部相邻时，控制销（ B）2134与引导槽（B）2042的端部分离。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2004353450A Valve timing control device of internal combustion engine 有权
公开(公告)号：JP2004353450A
公开(公告)日：2004-12-16
申请号：JP2003148263
申请日：2003-05-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MORIYA YOSHITO , HASEGAWA TADAO , KANEKO KEIJI
IPC分类号： F01L1/34 , F01L13/00 , F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To surely change the rotating phase of a camshaft by releasing the lock by a lock mechanism in all valve timing variable devices even under insufficient fluid pressure. SOLUTION: This intake and exhaust valve timing variable devices installed in an engine comprise variable mechanisms operated by hydraulic pressure, lock mechanisms, and oil control valves (OCV). When an electronic control device (ECU) outputs instruction signals for changing a lock phase to a different rotating phase simultaneously to both OCVs (step 130), both valve timing variable devices may operate with a time difference according to the instruction signals. When the hydraulic pressure is low based on engine information on hydraulic pressure or the equivalent, the ECU limits the controlled variable (duty ratio) of the instruction signals outputted to the OCV of the valve timing variable device which starts to operate earlier (steps 110, 120, 150). COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JPH10317927A VALVE CHARACTERISTIC CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10317927A
公开(公告)日：1998-12-02
申请号：JP12572397
申请日：1997-05-15
申请人： TOYOTA MOTOR CORP
发明人： SUGIMOTO ATSUSHI , MORIYA YOSHITO , HASEGAWA TADAO
IPC分类号： F01L1/34 , F01L1/344 , F01L13/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To provide a simple valve characteristic controller for moving a camshaft having three-dimensional cams axially and rotating the camshaft relative to a crankshaft with the use of a ring gear. SOLUTION: An axial drive mechanism 29 displaces an intake camshaft 22 axially and varies the working angles of three-dimensional cams 27. That displacement establishes the engagement of the splines of the camshaft 22 with the internal teeth of a ring gear to allow the camshaft 22 to move axially with respect to a pulley 24a synchronizing with a crankshaft 15. A rotative drive mechanism 24 displaces the ring gear axially and then establishes the engagement of the helical splines of the pulley 24a with the external teeth of the ring gear and that of the splines of the camshaft 22 with the internal teeth of the ring gear to thus allow the camshaft 22 to rotate relative to the pulley 24a.

10. 发明专利

JPH10212911A VARIABLE VALVE TIMING MECHANISM OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10212911A
公开(公告)日：1998-08-11
申请号：JP10784597
申请日：1997-04-24
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHIHITO , SUGIMOTO KIYOSHI , HASEGAWA TADAO
IPC分类号： F01L1/34 , F01L1/344
摘要： PROBLEM TO BE SOLVED: To prevent the relative rotation of a housing and vane body by the torque change of a camshaft when a fluid pressure is drooped. SOLUTION: A vane body 19 is provided relatively rotatably for a housing 16. First/second oil pressure rooms 30, 31 are formed on both sides of respective vanes 24 of the vane body 19. A valve timing variable mechanism (VVT) 12 rotates relatively the housing 16 and vane body 19 by an oil pressure supplied to respective oil pressure rooms 30, 31 and changes the valve timing of an intake valve. A lock mechanism 49 includes a lock pin 33 and an engagingly locking hole 34 and switches the regulation state for regulating the relative rotation between the housing 16 and the vane body 19 to the realest state for allowing this relative rotation in response to the bigness of the oil pressure of respective oil pressure rooms 30, 31. This lock mechanism 49 is transfered to a release state when the oil pressure of respective oil pressure rooms 30, 31 reaches a pressure which can obstruct the swing of the vane body 19 by the torque change of the camshaft.

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