专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JPH1113429A VALVE OPENING/CLOSING CHARACTERISTIC CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH1113429A
公开(公告)日：1999-01-19
申请号：JP16441897
申请日：1997-06-20
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： F01L1/34 , F02D13/02 , F15B1/02
摘要： PROBLEM TO BE SOLVED: To provide a valve opening/closing characteristic control device for an internal combustion engine, which can stably operates a variable valve opening/closing characteristic mechanism even under a condition that sufficient hydraulic fluid pressure can not be supplied from a hydraulic pump just after the internal combustion engine is started and so on. SOLUTION: In this control device, a hydraulic accumulator 73 is arranged, to which hydraulic pressure supplied from an oil pump 63 drivingly connected to the output shaft of an internal combustion engine is accumulated. In the case that hydraulic pressure supplied from the oil pump 63 is reduced at the time of starting of the internal combustion engine or the like, an oil switching valve 75 is driven so as to release hydraulic pressure accumulated in the accumulator 73, and the hydraulic pressure is collectively supplied to a variable valve opening/closing characteristic mechanism 19 through an oil control valve 51.

82. 发明专利

JPH09291805A VALVE TIMING CONTROLLER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH09291805A
公开(公告)日：1997-11-11
申请号：JP10703796
申请日：1996-04-26
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO , ASAKURA TAKESHI
IPC分类号： F01M1/16 , F01L1/34 , F02D11/06 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To restrain abnormal sound from being generated caused by collision of members in starting engine, over a long period of time. SOLUTION: A cam shaft 26 is provided with a variable valve timing mechanism (VVT) 63 on its front end. The VVT 63 is provided with a sprocket 31, an inner gear 65 attached to the front end of the cam shaft 26, and a piston 73 provided between the sprocket 31 and the inner gear 65. The VVT 63 is provided with a first pressure chamber 74 and a second pressure chamber 75 on both sides of the piston 73. Engine oil 70 is supplied from an oil pump 76 to the first and second pressure chambers 74, 75 through oil passages 79, 81. An ECU 88 controls an oil control valve 82 provided on the way of respective oil passages 79, 81, closes the first oil passage, and also releases the second oil passage 81 until the specified time passes after an engine is started.

83. 发明专利

JPH08200107A VALVE TIMING CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08200107A
公开(公告)日：1996-08-06
申请号：JP649695
申请日：1995-01-19
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： F01L1/34 , F02D11/06 , F02D13/02 , F02D13/04 , F02D45/00
摘要： PURPOSE: To provide effective engine brake properties as well as to restrain oil rising attended with decrease of intake passage pressure, by controlling a variable valve timing mechanism so that the intake air pressure may be between the lower limit intake air pressure and the upper limit intake air pressure when the internal combustion engine is judged to be in the decelerating state. CONSTITUTION: The lower limit intake air pressure to be taken as a lower limit value of the target region of intake air pressure in an intake passage 20 and the upper intake air pressure to be taken as an upper limit value are so set as to be decreased as the engine speed is increased. A variable valve timing mechanism (VVT) 50 is so controlled that the intake air pressure may be between the lower limit intake air pressure and the upper intake air pressure when an internal combustion engine 10 is judged to be in the decelerating state. Accordingly, the pressure in the intake passage 20 is not maintained in the considerable low state even when the intake air pressure in the intake passage 20 is decreased, and oil rising wherein engine oil is sucked into a combustion chamber 15 is restrained.

84. 发明专利

JPH06280515A VARIABLE VALVE TIMING DEVICE 失效
公开(公告)号：JPH06280515A
公开(公告)日：1994-10-04
申请号：JP7050193
申请日：1993-03-29
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： F01L1/34 , F02D11/06 , F02D13/02
摘要： PURPOSE:To obtain stable intermediate rotational phase of a cam shaft by holding a ring gear in an intermediate position of a movable range with a smiple structure without using a hydraulic control valve. CONSTITUTION:Sliding portions with which a ring gear 11 can be slid are formed between a case 4 and the ring gear 11, in addition to between the ring gear 11 and a timing pulley 6. A back pressure escape passage 25 is formed, which passage 25 has an opening 25a that is blocked by the ring gear 11 when the ring gear 11 is moved to an intermediate position in a movable range. A first back pressure adjustment passage 26 is formed, which is opened on the portion of the sliding portion, at least on the side of a botton 16a of a back pressure chamber 16, compared to the opening 25a. A first governor valve 27 is provided on a cam shaft main body 2 in an integrally united manner. A valve body 33 of the first governor valve 27 is operated formreleasing the first back pressure adjustment passage 26 when an engine speed is lower than a first set value, and is moved by centrifugal force generated together with rotation of the cam shaft main body 2, for blocking the first back pressure adjustment passage 26.

85. 发明专利

JPH06185317A VARIABLE VALVE TIMING DEVICE 失效
公开(公告)号：JPH06185317A
公开(公告)日：1994-07-05
申请号：JP4302093
申请日：1993-03-03
申请人： TOYOTA MOTOR CORP
发明人： MURAKAMI NOBUYUKI , MORIYA YOSHITO
IPC分类号： F01L1/34
摘要： PURPOSE:To improve precision of an intermediate rotational phase by way of stably holding a ring gear at an intermediate position as well as improving responsibility at the time of changing over a rotational phase by way of moving the ring gear from one end part of a moving range to the other end part in a short period of time. CONSTITUTION:On a camshaft 2 and others, an exhaust passage 24 to exhaust working oil 10 in a pressure chamber 12 to the side of an oil pan 15 is provided. The end part of the exhaust passage 24 on the side of the pressure chamber 12 is opened to face the intermediate position of a moving range of a ring gear 11. In the middle of the exhaust passage 24, a hydraulic control valve 25 is provided, and the hydraulic control valve 25 closes the exhaust passage 24 at the time when the ring gear 11 is displaced by the maximum amount by hydraulic pressure in the moving range and opens the exhaust passage 24 at the time when the ring gear 11 is displaced to the intermediate position of the moving range. On the hydraulic control valve 25, a variable restriction part is provided. The variable restriction part, when the exhaust passage 24 is opened by the hydraulic control valve 25, reduces the sectional area of a supply passage 13 smaller than the time when the exhaust passage 24 is closed.

86. 发明专利

JPH05195725A VARIABLE VALVE TIMING DEVICE 失效
公开(公告)号：JPH05195725A
公开(公告)日：1993-08-03
申请号：JP1137492
申请日：1992-01-24
申请人： TOYOTA MOTOR CORP
发明人： YAMAZAKI MASAMI , WATANABE ATSUSHI , MORIYA YOSHITO
IPC分类号： F01L1/02 , F01L1/34
摘要： PURPOSE:To enhance the durability of gears in a variable valve timing device of an internal-combustion engine and decrease the meshing noise to be generated therefrom by reducing the contact pressure in meshing of gears which couple together cam shafts and drive. CONSTITUTION:A variable valve timing device (VTT) 1 is split into a phase conversion part 9 to convert the rotational phase of a cam shaft 5 and a hydraulic type drive part 10 to drive the phase conversion part 9. The phase conversion part 9 is arranged capable of rotating in a single piece with the cam shaft 5, and the casing of the drive part 10 is provided on a cylinder head 3 non- rotatably. Through a bearing 26 a ring gear 13 of the phase conversion part 9 is coupled with an operational rod 24 of the drive part 10. A scissors gear 7 fixed to another cam shaft 6 is coupled with a scissors gear 8 constituting the phase conversion part 9 and is driven. Accordingly an inertia load in a portion corresponding to the phase conversion part 9 is solely applied to the cam shaft 5 when it is rotated, and the inertia load applied to the two scissors gears 7, 8 is reduced in a portion corresponding to the drive part.

87. 发明专利

JPH0539091A PITCH CONTROL DEVICE FOR VARIABLE PITCH PROPELLER 失效
公开(公告)号：JPH0539091A
公开(公告)日：1993-02-19
申请号：JP22205391
申请日：1991-08-06
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： B64C11/30
摘要： PURPOSE:To minimize the take-off distance and reduce the noise of a propeller by correcting the target rotating speed of an engine at a low flying speed of an aircraft to be relatively higher than that at high flying speed, according to the detected result of the flying speed. CONSTITUTION:An engine speed detecting means 1 to detect the engine speed for driving the propeller and a target engine speed setting means 2 to set the target engine speed based on the operating condition of an output lever are provided. In an aircraft provided with a pitch control mechanism 4 to change the pitch of a propeller. A control signal for controlling the propeller pitch is output from a control signal output means 3 based on the deviation of engine speed from the target engine speed. Further, a flying speed detecting means 5 to detect the flying speed of an aircraft is provided, the target engine speed at low flying speed is corrected to be relatively higher than that at high flying speed by means of a target engine speed correcting means 6, according to the detected flying speed.

88. 发明专利

JPH0532199A PITCH CONTROL DEVICE OF VARIABLE PITCH PROPELLER 失效
公开(公告)号：JPH0532199A
公开(公告)日：1993-02-09
申请号：JP21271091
申请日：1991-07-29
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： B64C11/40
摘要： PURPOSE:To lessen delay in pitch control by correcting the value of control signal, which is based on the difference between the target revolving speed and the engine revolving speed, on the basis of the calculated revolving speed difference change amount. CONSTITUTION:The difference between the target revolving speed and the engine revolving speed is calculated by a calculating means 3. The change amount of this revolving speed difference obtained through calculation is calculated by a calculating means 6, and on the basis of this revolving speed difference change amount as obtained, the value of a propeller pitch control signal is corrected by a correcting means 7. This allows lessening the delay in the pitch control due to response delay in a pitch control mechanism 5, for example response delay in a fluid actuator after an output lever is turned.

89. 发明专利

JPH0524585A PITCH CONTROL DEVICE FOR VARIABLE PITCH PROPELLER 失效
公开(公告)号：JPH0524585A
公开(公告)日：1993-02-02
申请号：JP20865491
申请日：1991-07-25
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： B64C11/40 , B64C11/44
摘要： PURPOSE:To always properly control the pitch of a propeller by correcting a control signal on a difference in the computed number of revolutions of an engine during the steady flight state of an aircraft in which the pitch of the propeller is controlled on a difference between the number of revolutions of the engine and its target number of revolutions. CONSTITUTION:An engine speed detecting means 1 detects the number of revolutions of an engine to rotate a propeller, and a target engine speed setting means 2 sets the target number of revolutions of the engine on an output lever operating state. An engine speed difference computing means 3 computes a difference between the number of revolutions of the engine and its target number of revolutions, and a control signal sending means 4 sends a control signal to control the pitch of the propeller for making a pitch control mechanism 5 control the pitch. In this case, a steady flight state judging means 6 is provided, and when the flight state is fudged to be steady, a control signal value correcting means 7 corrects the value of the control signal basing on the above number of revolution difference. Thus the slippage of control quantity caused by a change with the passage of time in a hydraulic pressure actuator or the like can be corrected.

90. 发明专利

JPH0424198A PITCH CONTROLLER OF VARIABLE PITCH PROPELLER 失效
公开(公告)号：JPH0424198A
公开(公告)日：1992-01-28
申请号：JP12779690
申请日：1990-05-17
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO
IPC分类号： B64C11/30
摘要： PURPOSE:To secure the optimum operation constantly by obtaining the most appropriate rotational speed of an engine under existing operating condition according to engine characteristics and variable pitch propeller characteristics, and determining necessary machine speed based on the propeller characteristics and the like when determining the rotational speed. CONSTITUTION:This controller are provided with a pitch angle detecting means 1, a rotational speed detecting means 2, an air density detecting means 3, an engine output detecting means 4, and an engine load detecting means 5. The detected pitch angle, engine rotational speed, air density, and engine output are inputted to obtain machine speed by the first determining means 6 based on the variable pitch propeller characteristics. Also, the machine speed, air density, and engine load are inputted to obtain the most appropriate rotational speed under prescribed conditions at the engine load by the second determining means 7 based on engine characteristics variable pitch propeller characteristics, thus controlling the pitch of the variable pitch propeller by a pitch control means 8 so that the detected rotational speed may become the most appropriate rotational speed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式