-
1.发明专利
公开(公告)号：JPH11280508A
公开(公告)日：1999-10-12
申请号：JP8605198
申请日：1998-03-31
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TOKORO MASAMI
Abstract: PROBLEM TO BE SOLVED: To prevent generation of a water drop in an exhaust manifold in a side of a cylinder reducing objective bank and prevent resulting in deterioration of emission by excessively cooling a cylinder itself, in the case of a cylinder reducing process of a marine internal combustion engine.
SOLUTION: When driving of a second bank 4b is stopped by variable cylinder control, a flow of cooling water in an exhaust manifold cooling water passage 18 for cooling exhaust of an exhaust manifold 10 provided in the second bank 2b is decreased by squeezing a throttle valve 28. Thus by decreasing the flow of cooling water, a cooling speed by the cooling water is generated slower than usual. Consequently, a temperature of exhaust stagnated in the exhaust manifold 10 and a temperature of a cylinder of the second bank 4b are prevented from large lowering down. Accordingly, generation of a water drop is prevented with exhaust not leading to a dew point, and emission is prevented from deteriorating even when driving of the second bank 4b is restarted.
COPYRIGHT: (C)1999,JPOAbstract translation: 要解决的问题：为了防止气缸减少物镜组侧面的排气歧管中的水滴的产生，并且通过使气缸本身过度冷却来防止发射的劣化，在船舶的气缸缩小过程的情况下 内燃机。 解决方案：当通过可变气缸控制来停止第二组4b的驱动时，用于冷却设置在第二组2b中的排气歧管10的排气的排气歧管冷却水通道18中的冷却水流通过挤压节流阀 因此，通过降低冷却水的流量，产生比通常慢的冷却水的冷却速度。 因此，能够防止排气歧管10停滞的排气温度和第二排出口4b的气缸的温度大幅下降。 因此，即使在重新启动第二排料槽4b的驱动时，防止排气不会导致露点而产生水滴，并且防止发射劣化。
-
公开(公告)号：JPH05332104A
公开(公告)日：1993-12-14
申请号：JP14071092
申请日：1992-06-01
Applicant: TOYOTA MOTOR CORP
Inventor： TSUNODA TAKAYUKI , TOKORO MASAMI , HARADA KOJI , OZAWA HITOSHI , SASAKI KAZUHIKO , MORIYA YOSHITO
Abstract: PURPOSE:To improve durability of a cam contact part by relaxing tensile stress applied on a coating part concerning a cam contact part structure of a valve system of an internal combustion engine applied with coating of an abrasion resistance material on the cam contact part. CONSTITUTION:A valve lifter 2 to transmit force of a cam to a valve 3 constituting an air intake valve and others is provided. On a surface of the valve lifter 2 facing against a cam 1, a shim 7 is arranged. The side of the cam 1 of the shim 7 is made convex in a spherical shape, and on its surface, an abrasion resistance layer 6 of ceramic is provided.
-
公开(公告)号：JPH0526102A
公开(公告)日：1993-02-02
申请号：JP17849991
申请日：1991-07-18
Applicant: TOYOTA MOTOR CORP
Inventor： ABE SHIZUO , KAWACHI MASATO , TOKORO MASAMI
Abstract: 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.
-
公开(公告)号：JPH04362256A
公开(公告)日：1992-12-15
申请号：JP13800491
申请日：1991-06-10
Applicant: TOYOTA MOTOR CORP
Inventor： KAWACHI MASATO , ABE SHIZUO , TOKORO MASAMI
Abstract: 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.
-
公开(公告)号：JPH07118832A
公开(公告)日：1995-05-09
申请号：JP26253893
申请日：1993-10-20
Applicant: TOYOTA MOTOR CORP
Inventor： SASAKI KAZUHIKO , YASUDA SHIGERU , TOKORO MASAMI , OZAWA HITOSHI
Abstract: PURPOSE:To provide the sliding member capable of shortening the time required for mirror finishing of a contact surface. CONSTITUTION:After the surface of a base material 50 of a shim is finished to about 0.3mumRz, a coating layer 51 consisting of titanium nitride is formed by an arc type ion plating method. The current density at the time of the treatment is regulated to 60 to 90MA/cm , by which droplets having 0.7 to 5.2% ratio of the total area of the section when base material is cut at 0.5mum height to the area of the base material are formed on the surface. The cam contact surface is mirror finished to roughness of
-
Patent Agency Ranking
公开(公告)号：JPH06206025A
公开(公告)日：1994-07-26
申请号：JP1701593
申请日：1993-01-07
Applicant: TOYOTA MOTOR CORP
Inventor： HARADA KOJI , TOKORO MASAMI
Abstract: PURPOSE:To effect a favorable flame spray of the inner face of a material to be flame-sprayed even when the outer shape of the material to be flame- sprayed is not a cylindrical shape. CONSTITUTION:The rotating type inner face flame spray apparatus is a one having a housing 10 supported rotatably around the shaft line 12 by means of a supporting apparatus 16 and driven rotatably by means of a driving apparatus 27 and a flame spray nozzle 34 carried by the housing so as to spray a flame spray flow 84 in the direction crossing the shaft line. A plurality of guide pipes 54, 56 and 58 for feeding a flame spray flow raw material connected with the flame spray nozzle on each one of their ends and a plurality of guide pipes 62, 64 and 66 supported by means of a supporting apparatus are respectively connected with a fluid joint 60 around the shaft line and relatively and rotatably.
-
公开(公告)号：JPH0510206A
公开(公告)日：1993-01-19
申请号：JP16166591
申请日：1991-07-02
Applicant: TOYOTA MOTOR CORP
Inventor： KAWACHI MASATO , TOKORO MASAMI , ABE SHIZUO
Abstract: PURPOSE:To suppress drop of the cooling performance of a cylinder cooler of an internal combustion engine in the event of choking of a refrigerant passage. CONSTITUTION:Ring shaped refrigerant passages 10 are provided in groove form at the periphery of a cylinder liner 1, and notch form communication paths 11 for tying adjoining refrigerant passages 10 are provided in each partitioning member 4 existing among the passages 10 in such an arrangement their number as provided shall be greater in uppermore position of the cylinder liner 1 which is nearer the combustion chamber. Thereby the refrigerant passage at the uppermore position of cylinder liner which receives a greater heat input will involve a smaller division out of being cooled even when a choke is generated, to lead to certain suppression of drop of the cooling performance when choke is generated, and at the same time, a cooling effect distribution can be attained well correspondence to the heat input distribution over the cylinder liner, whose temps. are thus be made uniform.
-
公开(公告)号：JPH0510204A
公开(公告)日：1993-01-19
申请号：JP16577691
申请日：1991-07-05
Applicant: TOYOTA MOTOR CORP
Inventor： ABE SHIZUO , TOKORO MASAMI , KAWACHI MASATO
Abstract: PURPOSE:To prevent refrigerant from stagnation in a cooling device for an internal combustion engine by furnishing a ring-shaped groove at the periphery of a cylinder liner, and allowing the refrigerant to flow through this groove. CONSTITUTION:A plurality of openings 141-143 are furnished in the refrigerant lead-in part of a ring-shaped passage 32 through which the refrigerant introduced from a refrigerant lead-in port 7 and passing through No.1 communication path 5 is introduced upon being first diverged in the direction approx. perpendicular to the No.1 path extending direction and not existing in the refrigerant lead-in port extending direction.
-
公开(公告)号：JPH051619A
公开(公告)日：1993-01-08
申请号：JP15691391
申请日：1991-06-27
Applicant: TOYOTA MOTOR CORP
Inventor： KAWACHI MASATO , ABE SHIZUO , TOKORO MASAMI
Abstract: PURPOSE:To prevent cooling performance from lowering due to clogging of refrigerant passages in a cooling device in which the width of grooves in refrigerant passages is reduced to increase cooling effect, in the cooling device of an internal combustion engine for cooling its cylinders. CONSTITUTION:Groove-shaped refrigerant passages 18 are formed annularly on the outer periphery of a cylinder liner 10, and connecting passages 22 for connecting adjacent refrigerant passages 18 are provided spirally and so that the upper and lower connecting passages 22 are alternated to each other in axial direction of the cylinder liner 10 in partition members 11 provided between the refrigerant passages 18. By providing the connecting passages 22 alternately, a distance by which refrigerant does not flow can be minimized, even when clogged portion is produced in the refrigerant passage 18, and the lowering of rigidity of the cylinder liner 10 which may be caused by providing the connecting passages 22 can be suppressed to the minimom.
-
公开(公告)号：JPH04358746A
公开(公告)日：1992-12-11
申请号：JP13514791
申请日：1991-06-06
Applicant: TOYOTA MOTOR CORP
Inventor： ABE SHIZUO , KAWACHI MASATO , TOKORO MASAMI , NAKANISHI KIYOSHI
Abstract: PURPOSE:To provide refrigerant flow rate distribution suitable for heat input distribution in a cylinder liner by introducing refrigerants into the extended part of a communication passage, extended to a cylinder head side than the uppermost annular passage, out of plural annular passages formed on the cylinder liner. CONSTITUTION:Plural annular grooves 121-125 are formed in the shaft direction of a cylinder liner 11 along its peripheral direction on its outer peripheral surface 11a, and longitudinal grooves 14 and 15, communicating the annular grooves 121-125 in the shaft direction of the cylinder liner 11 respectively, are formed on the inner peripheral surface of the bore part 13a of the cylinder liner 11 and a cylinder block 13. The longitudinal groove 14 composing a first communication passage is further extended in a cylinder head direction than the annular groove 121 located on a side nearest to a cylinder head 16 out of the annular grooves 121-125, and a refrigerant introduction passage 21 is provided on the cylinder head 16 so as to be communicated with the extended part of the longitudinal groove 14 to be communicated with a water jacket 17.
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.027 seconds)
