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1. 发明专利

JP2002070624A COMBUSTION CONTROLLER FOR CYLINDER INJECTION TYPE INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002070624A
公开(公告)日：2002-03-08
申请号：JP2000255616
申请日：2000-08-25
申请人： TOYOTA MOTOR CORP
发明人： SASAKI KOICHI , ABE SHIZUO
IPC分类号： F02B17/00 , F02B23/10 , F02B31/00 , F02B75/12 , F02D41/02 , F02D41/30 , F02D41/34 , F02D43/00 , F02D45/00 , F02P5/15 , F02P5/152 , F02P5/153
摘要： PROBLEM TO BE SOLVED: To provide a combustion controller for a cylinder injection type internal combustion engine capable of forming an air-fuel mixture of a proper fuel concentration regardless of fuel properties in stratified charge combustion to suppress deterioration of a combustion state. SOLUTION: In this combustion controller, an electronic controller 40 changes over a combustion mode of the engine 10 between the stratified charge combustion and uniform combustion on the basis of an engine load and an engine speed. The electronic controller 40 compares a knock learning value with a reference knock learning value α to detect whether fuel is heavy fuel or light fuel. In the stratified charge combustion, the electronic controller 40 controls such that an interval between injection timing and ignition timing is long, to secure a time for vaporization of the fuel, in the case of the heavy fuel. In the case of the light fuel, the electronic controller 40 controls such that the interval between the injection timing and the ignition timing is short. Thereby, dispersion of the fuel is suppressed.

2. 发明专利

JP2000227028A CYLINDER INJECTION TYPE SPARK IGNITION INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000227028A
公开(公告)日：2000-08-15
申请号：JP2837799
申请日：1999-02-05
申请人： TOYOTA MOTOR CORP
发明人： UMEHANA TOYOICHI , MATSUSHITA SOICHI , ABE SHIZUO , HAJIMA TAKASHI , KOBAYASHI TATSUO , MURAMATSU NOBUYUKI , TSUTSUMI YASUHITO , FUJIMORI KOKICHI
IPC分类号： F02P13/00 , F02B23/10 , F02B75/12 , F02F3/26
摘要： PROBLEM TO BE SOLVED: To surely prevent misfire at the time of stratified combustion, in a cylinder injection type spark ignition internal combustion engine for injecting fuel in a flat fan state having relatively thin thickness. SOLUTION: This engine is equipped with an ignition plug, a cavity 8 formed on a piston top face, and a fuel injection valve 7 for injecting fuel into the cavity in a nearly fan state having a relatively thin thickness. An opposite side wall 8b, of a cavity facing a fuel injection valve for introducing fuel to a nearby ignition plug, has a portion composed of an elliptical part having the focuses of the nozzle position HC of the injection valve in a plane view and an ignition plug vicinal position MC, and a return part 8c for deviating the fuel in a cavity inner side direction is provided on the wall 8b.

3. 发明专利

JPH10184815A DOUBLE ROW TYPE CHAIN 失效
公开(公告)号：JPH10184815A
公开(公告)日：1998-07-14
申请号：JP33861096
申请日：1996-12-18
申请人： TOYOTA MOTOR CORP
发明人： ABE SHIZUO
IPC分类号： F16H7/06 , F16G13/02 , F16G13/06
摘要： PROBLEM TO BE SOLVED: To reduce the weight of a double row type chain to reduce noise at the time when the chain is used. SOLUTION: In a double row type chain which is provided with a pair of inner plate having a first hole at one end part in the longitudinal direction and having a second hole at the other end part, an inner link consisting of two bushes, both ends of which are inserted into the respective first hole and second hole, an outer plate having the first insertion hole at one end part in the longitudinal direction and having the second insertion hole at the other end part, an intermediate plate having the first through hole at one end part in the longitudinal direction and having the second through hole at the other end part, and one outer plate, an inner link, an intermediate plate, and the other inner link, the other outer plate, are alternately shifted and overlapped with each other, and then pins are inserted into the insertion holes of the one outer plate into the inner cylinder of the respective bushes of the inner link, and the respective through holes of the intermediate plate in order for a double row type chain to be formed, a part between the first through hole and the second through hole of the intermediate plate 15 is removed to provide a space part 17.

4. 发明专利

JPH07259555A COOLING SYSTEM OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07259555A
公开(公告)日：1995-10-09
申请号：JP4838894
申请日：1994-03-18
申请人： TOYOTA MOTOR CORP
发明人： SUZUKI MAKOTO , ABE SHIZUO , KAWACHI MASATO
IPC分类号： F01P3/02 , F02B1/04 , F02B75/18 , F02B75/20 , F02F1/10 , F02F1/14 , F02F1/24 , F02F1/42
摘要： PURPOSE:To reduce the extent of deformation in each cylinder by cooling each bore wall among cylinder bores. CONSTITUTION:Four cylinder bores 4a, 4b, 4c and 4d are set up along an engine longitudinal axis K-K. At each side of this engine longitudinal axis K-K, a going cooling water passage 5 and a returning cooling water passage 6 continuously extending from the first bore 4a to the four bore 4d as going along the circumference of respective cylinder bores are formed each, connecting these passages 5 and 6 with each other. Cooling water flows into the going cooling water passage 5 from a cooling water inflow port 8, passing through this passage 5 and, after flowing into the returning cooling water passage 6, it is flows out of a cooling water outflow port 9. In succession, three cooling water connecting passages 15a, 15b and 15c being interconnecting both these going and returning cooling water passages 5 and 6 to each other are formed in these three bore walls 14a, 14b and 14c lying among the cylinder bores.

5. 发明专利

JPH0681647A COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0681647A
公开(公告)日：1994-03-22
申请号：JP23219092
申请日：1992-08-31
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： ABE SHIZUO , KAWACHI MASATO , MATSUSHIRO RYUICHI
IPC分类号： F01P3/04 , F01P11/04 , F02B1/04 , F02B75/18 , F02F1/40
摘要： PURPOSE:To lower the temperature of cooling water flowing in a water pipe so as to improve a cooing effect on the discharge side of the water pipe by providing a cooling means for radiating the heat of cooling water, at the intermediate part of the water pipe for communicating the parts, having pressure difference, of a cooling water passage. CONSTITUTION:A cooling system for an internal combustion engine is provided with a water pipe 16 with one end thereof disposed in a cooling water passage 13a and with the other end thereof disposed at the other part of the cooling water passage, that is, at a part where cooling water pressure difference is generated in relation to the part where one end is positioned. Cooling fins 17 are provided at the part, exposed outside of a cylinder head 13, of the water pipe 16.

6. 发明专利

JPH0526102A COOLING DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0526102A
公开(公告)日：1993-02-02
申请号：JP17849991
申请日：1991-07-18
申请人： TOYOTA MOTOR CORP
发明人： ABE SHIZUO , KAWACHI MASATO , TOKORO MASAMI
IPC分类号： F01P3/02 , F02F1/14 , F02F1/16
摘要： PURPOSE:To prevent generation of stagnation concerning a cooling device in which circular grooves are provided on the outer circumference of a cylinder liner, so as to perform cooling of an internal combustion engine. CONSTITUTION:The depth in the width direction of respective circular grooves 132,133 in which coolant passing a vertical groove 14 as a first communication passage introduced from a coolant introduction port 16 is separately introduced, in the direction approximately perpendicular to the extended direction of the vertical groove 14, is formed in such a way that it becomes deeper on the upstream position of coolant flow in the vertical groove 14.

7. 发明专利

JPH04362256A COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04362256A
公开(公告)日：1992-12-15
申请号：JP13800491
申请日：1991-06-10
申请人： TOYOTA MOTOR CORP
发明人： KAWACHI MASATO , ABE SHIZUO , TOKORO MASAMI
IPC分类号： F01P3/02 , F02F1/14 , F02F1/16
摘要： PURPOSE:To improve the cooling efficiency by cooling a cylinder liner in accordance with the distribution of the inputted calorific heat in the axial direction of the cylinder liner, in a cooling device for an internal combustion engine which cools cylinders. CONSTITUTION:A plurality of ring shaped coolant passages 14 are formed in the axial direction of a cylinder liner 11, and communication passages 15 and 16 which communicate to each of the plural stage coolant passages 14 are formed. An effluence pipe 18 is connected at the upper edge part of the communication passage 16 on the outlet side, and the communication passage 16 is formed thin so that the pressure loss of the coolant in the communication passage 16 is generated. Accordingly, a series of flow passage from an inflow pipe 17 to the effluence pipe 18 is constituted so that the pressure loss in the flow of the coolant becomes less in a flow passage passing through the coolant passage 14 in the upper part close to the combustion chamber of the cylinder liner 11, and is disposed corresponding to the distribution of the inputted calorific heat of the cylinder liner 11.

8. 发明专利

JPH04298671A COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04298671A
公开(公告)日：1992-10-22
申请号：JP6355091
申请日：1991-03-27
申请人： TOYOTA MOTOR CORP
发明人： ABE SHIZUO , IGUCHI SATORU , KAWACHI MASATO
IPC分类号： F02F1/16
摘要： PURPOSE:To equalize the temperature of the inner circumferential surface of a cylinder liner in the circumferential direction, concerning a cooling device of an internal combustion engine having a combustion chamber in a cylinder. CONSTITUTION:On the outer circumference of a cylinder liner 10, a plurality of cooling grooves 12 formed along the circumferential direction and communicating grooves 13, 14 to communicate the cooling grooves 12 in the axial direction are provided. The center C2 of the outer circumferential face 10a and the bottom diameter of the cooling groove 12 is formed to be offset from the center C1 of the inner circumferential face 10b by the size S1 on the communicating groove 13 side of the inlet side. Hereby, the distance size from the inner circumferential face 10b up to the cooling groove 12 is gradually thinned from the communicating groove 13 to the groove 14, and cooling capacity is improved. Therefore, a drop of cooling capacity due to temperature rise of cooling medium is cancelled, and the temperature of the inner circumferential face 10b is equalized in the circumferential direction.

9. 发明专利

JP2001355488A OPERATION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2001355488A
公开(公告)日：2001-12-26
申请号：JP2000176656
申请日：2000-06-13
申请人： TOYOTA MOTOR CORP
发明人： ITAGAKI DAISUKE , ABE SHIZUO
IPC分类号： F02D45/00 , F02D41/04 , F02D41/22
摘要： PROBLEM TO BE SOLVED: To prevent a combustion failure caused by the lean state of a mixture around a spark plug during uniform combustion operation, without deteriorating exhaust emission. SOLUTION: During operation of uniform stoichiometric combustion wherein fuel is injected only in an intake stroke, the occurrence of misfire caused by the lean state of a mixture around the spark plug 33, or a deteriorated combustion state where the misfire is likely to occur, is detected from the transition time of the compression top dead center between cylinders 14a. When detecting the deteriorated combustion state, fuel pressure PF determined corresponding to engine speed NE and a fuel injection quantity is temporarily lowered, and fuel injection time is temporarily lengthened. Consequently, the fuel injected into a combustion chamber 18 in the intake stroke is further diffused by the air led in from an intake port 20, to bring the air-fuel ratio of the mixture around the spark plug 33 at the moment of ignition, close to a stoichiometric air-fuel ratio.

10. 发明专利

JP2000027652A CYLINDER INJECTION TYPE SPARK IGNITION INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000027652A
公开(公告)日：2000-01-25
申请号：JP19333598
申请日：1998-07-08
申请人： TOYOTA MOTOR CORP
发明人： UMEHANA TOYOICHI , KOBAYASHI TATSUO , HATTORI FUMIAKI , HAJIMA TAKASHI , HOKUTOU HIROYUKI , KASHIWAKURA TOSHIMI , KANDA MUTSUMI , TANAKA KOHACHI , MATSUSHITA SOICHI , ABE SHIZUO , MURAMATSU NOBUYUKI
IPC分类号： F02B17/00 , F02B23/10 , F02B75/12 , F02F1/24 , F02F3/26 , F02M61/14 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a cylinder injection type spark ignition internal combustion engine which can prevent occurrence of a misfire and which can surely enlarge the stratified combustion range on the high load side. SOLUTION: In a cylinder injection type spark ignition internal combustion engine comprising a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in a thin sector-like shape. The side surface of the cavity has a first and a second deflecting path 82a, 82b for allowing a plurality of fuel parts to pass by at least two spark plugs in such a case that fuel injection from the fuel injection valve in the sector-like shape is radially divided into the plurality of fuel parts, and is formed therein with a turn-back part 83 projected inward of the cavity at least in part, the first fuel deflecting path 82a is not provided with the turn-back part 83, or is provided with a turn back part having a short projecting length, and the second fuel deflecting path 82b is provided with the turn-back part 83 having a long projecting length.

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