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51. 发明专利

JP2000257410A VARIABLE VALVE CHARACTERISTIC DEVICE AND THREE- DIMENSIONAL CAM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000257410A
公开(公告)日：2000-09-19
申请号：JP6346899
申请日：1999-03-10
申请人： TOYOTA MOTOR CORP
发明人： MORIYA YOSHITO , KIKUOKA SHINICHIRO , NAKANO SHUJI , EINAGA HIDEO
IPC分类号： F01L1/08 , F01L1/34 , F01L1/344 , F01L13/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To obtain a variable valve characteristic device and a three- dimensional cam which enable valve characteristic variation adapted to requirements from an internal combustion engine. SOLUTION: In an intake valve, two types of lift patterns and continuous lift patterns therebetween due to a three-dimensional cam are enabled by driving a variable valve characteristic device. For two types of lift patterns, lift volume is different from a peak P on the advance angle side inside a valve action angle, but is not for the delay angle side. Since the intake cam adopts such two types of lift patterns, a state according to the characteristics of the internal combustion engine is enabled, in selecting a phase that has the same lift amount and in making difference in the lift amount in other phases. Therefore, it is possible to realize switable valve characteristic at all times according to the operation condition of the internal combustion engine, while being adapted to the characteristics of the internal combustion engine. Therefore, output performance, fuel efficiency, and combustion stability of the internal combustion engine can be improved further.

52. 发明专利

JP2000204915A VARIABLE VALVE SYSTEM OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000204915A
公开(公告)日：2000-07-25
申请号：JP535999
申请日：1999-01-12
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO
IPC分类号： F01L1/34
摘要： PROBLEM TO BE SOLVED: To change a valve characteristic without complicating a device and without enlarging a size of the device. SOLUTION: This variable valve system is provided with planetary gears 26 each of which rotates in an arrow B direction with the axial line of an inlet camshaft as a center based on a rotation of a crankshaft. The planetary gears 26 are meshed with an inner gear teeth 58a of a ring gear 58 and coupled to a drive plate 27 which integrally rotates with the inlet camshaft together with connection pins 55 and guide blocks 56. By rotation of the planetary gear 26 with the axial line of the inlet camshaft as a center, the same shaft rotates with its axial line as a center, and a rotation speed of the inlet camshaft becomes fast or slow by the rotation of the planetary gears 26 with the axis thereof as a center. The rotation speed of this camshaft is changed by displacing the ring gear 58 in a peripheral direction, the ring gear provided so as to surround the planetary gears 26 and the inlet camshaft.

53. 发明专利

JP2000087769A VALVE CHARACTERISTIC CONTROL UNIT OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000087769A
公开(公告)日：2000-03-28
申请号：JP25518098
申请日：1998-09-09
申请人： TOYOTA MOTOR CORP
发明人： KIKUOKA SHINICHIRO , MORIYA YOSHITO , EINAGA HIDEO , NAKANO SHUJI
IPC分类号： F01L1/34 , F01L13/00 , F02D13/02 , F02D41/20 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To sufficiently display the performance of an internal combustion engine using a continuously controllable valve lift amount variable mechanism and a valve timing variable mechanism, by considering the transitive state of both mechanisms. SOLUTION: When the directions of change (change pattern Sθ, SL) of both a lift amount variable actuator and a rotation phase difference variable actuator are congruent ('YES' at S550) with the required performance H during a transition required by the engine, priority (S560) is given to the rotation phase difference variable actuator which is more responsive. When only one is congruent, the congruent actuator (with both 'YES'/'NO' at S550) is given priority such that hydraulic fluid output by an oil pump P is provided. This makes it possible to get closed to the required performance during transition early. Therefore, engine performance is able to be sufficiently displayed during transition.

54. 发明专利

JP2000064816A OSCILLATING FOLLOWER MECHANISM FOR THREE-DIEMENTSIONAL CAM 失效
公开(公告)号：JP2000064816A
公开(公告)日：2000-02-29
申请号：JP23559898
申请日：1998-08-21
申请人： TOYOTA MOTOR CORP
发明人： KIKUOKA SHINICHIRO , MORIYA YOSHITO , EINAGA HIDEO , NAKANO SHUJI
IPC分类号： F01L1/14 , F01L1/16 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide an oscillating follower mechanism for three-dimensional cam with high durability causing no destruction in a root part of an enlarged part of an oscillating follower to be used in the oscillating follower mechanism for three-dimensional cam of an internal combustion engine. SOLUTION: When an intake side cam 11 becomes a high rotation state, an abnormal behavior is generated in a valve lifter 19. At the time of this abnormal behavior, a cam follower 25 in a floating state from a guide groove 24a collides against a cam surface 11a. Because an enlarge part 25c arranged on a cam closing side is provided at this collision location, impact force G imparted from the cam surface 11a to the cam follower 25 is directly applied to the enlarged part 25c. Therefore, an oscillating follower mechanism for three-dimensional cam with high durability can be provided without applying large bending stress to a root part P of the enlarged part 25c, and by preventing generation of destruction such as a crack in this root part P.

55. 发明专利

JPH1162648A VARIABLE COMPRESSION RATIO MECHANISM OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH1162648A
公开(公告)日：1999-03-05
申请号：JP22532497
申请日：1997-08-21
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO
IPC分类号： F02B75/04 , F02D15/02 , F02F3/00
摘要： PROBLEM TO BE SOLVED: To provide a variable compression ratio mechanism for internal combustion engine which is precluded from poor performance of operations, in which a change of the compression ratio is prevented by hindering an eccentric bearing from dislocation from the long stroke setting position or short stroke setting position. SOLUTION: The locked condition of an eccentric bearing 2 in the bearing lock position is generated by putting a lock pin 10 in engagement with a first oil pressure chamber 19 or second oil pressure chamber 21 furnished in the eccentric bearing 2 using only an energizing means, and the hydraulic force of an oil pump is allowed to act only for release of this engagement.

56. 发明专利

JPH10299492A SUCTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10299492A
公开(公告)日：1998-11-10
申请号：JP10334597
申请日：1997-04-21
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO
IPC分类号： F02B27/02
摘要： PROBLEM TO BE SOLVED: To prevent engine performance from being influenced by unevenness in the effective intake pipe length of each cylinder. SOLUTION: A suction control device comprises a surge tank 10 connected to an intake passage 3; a communication valve 21 to intercommunicate two volume chambers arranged in the surge tank; intake branch pipes M1-M6 to connect one of the sides in a longitudinal direction of the volume chamber to a cylinder and switch valves 22a and 22b arranged in each volume chamber along the longitudinal direction of the surge tank and the switch valves 22a and 22b to partition the volume chamber during closing and forcing an intake passage, running around the switch valves 22a and 22b and communicated with the intake branch pipes M1-M6 of cylinders C1-C6, in the volume chamber. The intake passage is connected to the side in a longitudinal direction, positioned facing the intake branch pipes C1-C6 with the switch valves 22a and 22b nipped therebetween, of the surge tank 10 and the communication valve 21 is arranged at a connection part between the intake passage 3 and the surge tank 10.

57. 发明专利

JPH06212919A DIESEL ENGINE WITH ACCESSORY CHAMBER 失效
公开(公告)号：JPH06212919A
公开(公告)日：1994-08-02
申请号：JP22581392
申请日：1992-08-25
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO
IPC分类号： F01L3/20 , F02B3/06 , F02B19/08 , F02B19/14 , F02B19/16 , F02B25/20
摘要： PURPOSE:To prevent an inlet valve from being exposed to the combustion gas ejected from an accessory chamber while increasing the compression ratio. CONSTITUTION:An air intake valve 14 is arranged on the cylinder head inner wall (3a) where the combustion gas ejected from an accessory chamber 5 may reach, and the air intake valve 14 is arranged to be tilted against the cylinderaxis. The undersurface of the air intake valve 14 is formed into the shape of cone so that the undersurface of the air intake valve 14 on the air intake valve 14-inclined side in relation to the cylinder-axis is flush with the cylinder head inner wall (3a) when the air intake valve 14 is closed.

58. 发明专利

JPH0571352A COMBUSTION CHAMBER STRUCTURE FOR TWO-CYCLE INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0571352A
公开(公告)日：1993-03-23
申请号：JP22796091
申请日：1991-09-09
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO
IPC分类号： F01L1/00 , F01L1/26 , F02B23/08 , F02B25/20 , F02B75/02 , F02F1/42
摘要： PURPOSE:To ensure excellent trapping efficiency and to provide excellent loop scavenging by forming an optimum mask wall to each air feed valve. CONSTITUTION:A first recessed part 10 is formed in the inner wall surface 6a of a cylinder head positioned on the opposite side to exhaust valves 14a and 14b and a pair of air feed valves 12a are arranged in the first recessed part 10. The opening of a first air feed valve 12a on the exhaust valves 14a and 14b side is covered with a mask wall 16a formed by using the peripheral wall surface 16 of the first recessed part. A second recessed part 26 is formed in the bottom wall surface of the first recessed part 10 at a distance from the peripheral wall surface 16 of the first recessed part. A second air feed valve 12b is arranged in the second recessed part 26. The opening of the second air feed valve 12b on the exhaust valves 14a and 14b side is covered with a mask wall 28a formed by using the peripheral wall surface 28 of the second recessed part.

59. 发明专利

JPS63248915A AIR-FUEL RATIO CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63248915A
公开(公告)日：1988-10-17
申请号：JP8309687
申请日：1987-04-06
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO , NOGUCHI HIROSHI , UMEHANA TOYOICHI , HIROSE KATSUHIKO
IPC分类号： F02B25/20 , F02B31/02 , F02B75/02 , F02D23/00 , F02D23/02 , F02D41/04
摘要： PURPOSE:To make on optimum amount of fuel feedable all the time by calculating a fuel blow-by factor according to driving condictions of an internal combustion engine, and compensating a fuel injection quantity according to this calculated result, in case of the two-cycle internal combustion engine or the like plenty of blow-by. CONSTITUTION:An air-fuel ratio controller is applied to an internal combustion engine being plenty of blow-by such as a two-cycle internal combustion engine or the like. In this case, there are provided with a device 2 supplying the internal combustion engine 1 with the desired amount of fuel, a device 3 calcualting a fuel supply depending on driving conditions of this internal combustion engine 1 and a device 4 storing compensating factor data for compensating fuel blow-by according to plural driving conditions of the internal combustion engine 1, respectively. The value of a compensating factor suitable for the measured driving conditions of the engine 1 is operated by data of a memory device 4, and there is provided with a device 5 correcting the fuel supply of the calculating device 3. And, also a device 6 forming a signal to the supply device 2 is provided so as to have the corrected amount of fuel fed to the internal combustion engine 1.

60. 发明专利

JPS62282746A EXPENDABLE PATTERN FOR CASTING CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS62282746A
公开(公告)日：1987-12-08
申请号：JP6844086
申请日：1986-03-28
申请人： TOYOTA MOTOR CORP
发明人： EINAGA HIDEO , TOSA NAOKI
IPC分类号： B22C9/22 , B22C7/02
摘要： PURPOSE:To eliminate the waste metal of a cylinder head and to improve the cooling characteristic thereof by dividing an expendable pattern for casting the cylinder head by the parting lines running the junctures between ignition plug mounting parts and combustion chamber wall and running above suction and exhaust ports. CONSTITUTION:The cylinder head 11 is set with the parting line D, E, F, G, H extending horizontally from a suction side lateral face 22 toward an exhaust side lateral face 23 to form the respective expendable patterns corresponding to divided blocks 101, 102, 103, 104, 105, 106. The ignition plug mounting parts 12 and the combustion chamber wall 43 forming the base of a water jacket 19e are integrally connected in this stage so that the corresponding expendable patterns are formed across the blocks 104, 105, 106 and are divided in the posi tion of the parting line D. Fitting parts for registration are provided to the parting planes of the respective expendable patterns and the patterns are united to one body by an adhesive agent. The waste metal of the cylinder head is thereby eliminated and the cooling characteristic thereof is improved.

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