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1. 发明专利

JPS58190567A Fuel injection nozzle 失效
标题翻译：燃油喷射喷嘴
公开(公告)号：JPS58190567A
公开(公告)日：1983-11-07
申请号：JP7280182
申请日：1982-04-30
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02M61/18
CPC分类号： F02M61/182 , F02M61/1826
摘要： PURPOSE:To decrease grain size of atomized fuel and obtain a good mixture, by drilling plural injection holes separated by a prescribed distance to the point end part of a nozzle main unit and spreadably arranging each injection hole in the forward flow direction of fuel mutually at a prescribed angle. CONSTITUTION:A fuel injection nozzle N is constituted such that an internal surface in the point end part of a main unit 1 is formed to a tapered face 2 and the point end part of a needle 3 is separably contacted with said face 2 to open and close said nozzle N, and plural injection holes 4, 5 of small diameter are provided to a position where a sloped surface of the needle 3 is separably contacted. Then each holes 4, 5 is separately placed by a distance delta further spreadably arranged as viewed from the side by an angle beta in the forward flow direction of fuel. In this way, each atomized fuel 4a, 5a is dispersed in a combustion chamber 8, and a fine particle of fuel is spread for a swirl S in the chamber 8. Accordingly, the fuels 4a, 5a can be well mixed with air to obtain a good mixture.
摘要翻译：目的：为了减少雾化燃料的粒度并获得良好的混合物，通过将与喷嘴主体的点端分开一定距离的多个注入孔，并将燃料的前向流动方向上的每个喷射孔相互放置一个规定的角度。构成：燃料喷射喷嘴N构成为使主体1的点端部的内表面形成为锥面2，针3的端部与所述面2分离接触以打开，关闭所述喷嘴N，并且将多个小直径的喷射孔4,5设置在针3的倾斜表面可分离地接触的位置。然后每个孔4,5分开放置一个距离三角形，该距离值从燃料的向前流动方向从侧面观察角度β进一步可展开地布置。以这种方式，每个雾化燃料4a，5a分散在燃烧室8中，并且在室8中扩散用于涡流S的燃料微粒。因此，燃料4a，5a可以与空气充分混合以获得一个很好的混合物。

2. 发明专利

JPS5465217A NOZZLE PRODUCTION 失效
公开(公告)号：JPS5465217A
公开(公告)日：1979-05-25
申请号：JP13230377
申请日：1977-11-04
申请人： ISUZU MOTORS LTD
发明人： ISHIDA SHIROU
IPC分类号： F02M61/18
摘要： PURPOSE:To enable a hole-type nozzle to be produced efficiently and accurately which is free from notches on the edge thereof adjacent its exit and also from a warped or eliptical deformation of such edge and is improved in its emission features. CONSTITUTION:For production of a nozzle, a stock material is worked to form a hole A for receiving a needle valve, a valve seat V, a suck hole S, a profile P and so on, whereafter a tip portion C of a nozzle N in which a nozzle hole H is to be formed is formed with a thickness or finishing allowance t additional to the final shape thereof shown in broken line. Then, a predetermined number of nozzle holes H of a predetermined diameter d are formed in the tip portion C by means of a drill D. Subsequently, the finishing allowance section t is removed in order to obtain the final shape of the nozzle N completed. According to this production method, notches, a warped deformation, and the like, of nozzle holes H caused to appear by whirling of the drill D or the like when the nozzle holes H are formed by the drill D can be removed upon and together with removal of the finishing allowance section t at the final step.

3. 发明专利

JPS6085216A VORTEX FLOW COMBUSTION CHAMBER TYPE DIESEL ENGINE 失效
公开(公告)号：JPS6085216A
公开(公告)日：1985-05-14
申请号：JP19347783
申请日：1983-10-18
申请人： ISUZU MOTORS LTD
发明人： ISHIDA SHIROU , SATOU YOSHIHIKO , KONAGAYA ISAO
IPC分类号： F02B3/06 , F02B19/08 , F02B19/14 , F02M61/06 , F02M61/14 , F02M61/18
摘要： PURPOSE:To reduce noise and vibration greatly by means of slow combustion by directly flowing an injected fuel from an injecting port along the inner wall of a combustion chamber and forming a liquid film, at the time of idling or low loading. CONSTITUTION:At the time of idling or low loading, a needle valve 9 reciprocates making a second valve body part 9b open and close a fuel feeding through port 15, to feed fuel into a gap C, but a first valve body part 9a maintains a main injection port 6 in a closed condition. An injected fuel F from a subinjection port 7 collides against a passage inner wall 17 immediately after injected, partly being minutely atomized and scattered in a combustion chamber 2. While, most of the fuel forms a wide thin liquid film over the inner wall 10 of the combustion chamber 2 in the same direction as the vortex flow S, and is gradually vaporized after a combustion started, carrying out weak combustion. Thereby, an earlier ignition can be achieved while greatly reducing noize and vibration.

4. 发明专利

JPS6011624A COMBUSTION CHAMBER STRUCTURE FOR DIRECT INJECTION TYPE DIESEL ENGINE 失效
公开(公告)号：JPS6011624A
公开(公告)日：1985-01-21
申请号：JP11806283
申请日：1983-06-30
申请人： ISUZU MOTORS LTD
发明人： ISHIDA SHIROU
IPC分类号： F02F3/26 , F02B3/06 , F02B21/02 , F02B23/04 , F02B23/06
摘要： PURPOSE:To accelerate a complete combustion of injection fuel as well as to aim at improvements in engine performance and smoke emission output, by making up a fuel oil air chamber in the upper peripheral part of a combustion chamber at the downstream side in a flow direction of a swirl from a fuel range to collide with an inner surface of the combustion chamber. CONSTITUTION:A swirl S is led into a chamber and whirled inside the chamber, while injection fuel F is blown inside and in order to produce an air-fuel mixture, a combustion chamber 5 is formed by a piston 2 being opened upward fronting on a cylinder head 3. And, at an upper peripheral edge part of this combustion chamber 5, each of fuel oil air chambers 7 is formed at the downstream side of a flow direction of the swirl S from a fuel range A colliding with a peripheral side 5a of the combustion chamber 5. These fuel oil air chambers 7 are formed in a piston head 2a corresponding to each of nozzle holes 4a of an injection nozzle 4. In addition, each of these fuel oil air chambers 7 is made up of a concave part stretching outward the diametral direction from the combustion chamber 5 whereby air is made to be stayable therein.

5. 发明专利

JPS59134322A Direct-injection type diesel engine 失效
标题翻译：直喷式柴油发动机
公开(公告)号：JPS59134322A
公开(公告)日：1984-08-02
申请号：JP808483
申请日：1983-01-22
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02B9/02 , F02B3/06 , F02B23/06 , F02F1/24 , F02M61/18
CPC分类号： F02B23/0669 , F02B3/06 , F02B23/0621 , F02B23/0624 , F02B23/0651 , F02B23/0672 , F02B2275/14 , F02F2001/247 , Y02T10/125
摘要： PURPOSE:To shorten time for an ignition delay as well as to prevent the occurrence of noise to the smallest possible extent, by forming an almost conical body-form projecting part in a sinking part of the head top surface of a piston, while making both main and auxiliary nozzle holes of an injection front toward a specified direction. CONSTITUTION:In this combustion chamber 4, its head top surface 2 is sunk in a hollow form, while a projecting part 3 is formed at almost the central part of a bottom surface 7 of this sinking part. A main nozzle hole 11 of a multihole type injection nozzle 6 is installed position fronting on the side wall of the combustion chamber 4. An auxiliary nozzle hole 12 being smaller in diameter than that of the main nozzle hole 11 is made to front toward a direction nearly along a side wall incline of the projecting part 8. Doing like this, time for an ignition delay is shortened as well as the combustion required for fuel or fuel-air mixture can be made to slow down, thus the occurrence of noise can be prevented remarkably to the smallest possible extent.
摘要翻译：目的：为了缩短点火延迟的时间以及尽可能地防止噪音的发生，通过在活塞头顶表面的下沉部分中形成几乎圆锥形的凸形部分，同时使两者注射前端的主要和辅助喷嘴孔朝向指定的方向。构成：在该燃烧室4中，其顶部顶面2以中空的形式下沉，而在该下沉部的底面7的大致中央部形成突出部3。多孔喷射嘴6的主喷嘴孔11安装在燃烧室4的侧壁的前方。直径小于主喷嘴孔11的辅助喷嘴孔12朝向朝向几乎沿着突出部分8的侧壁倾斜。这样做，缩短了点火延迟的时间，并且燃料或燃料 - 空气混合物所需的燃烧可以减慢，因此噪声的发生可以是在最小程度上显着防止。

6. 发明专利

JPS59218328A Direct-injection type diesel engine 失效
标题翻译：直喷式柴油发动机
公开(公告)号：JPS59218328A
公开(公告)日：1984-12-08
申请号：JP9142583
申请日：1983-05-26
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02B3/06 , F02B23/06 , F02F1/24
CPC分类号： F02B23/0621 , F02B3/06 , F02B23/0672 , F02B2275/14 , F02F2001/247 , Y02T10/125
摘要： PURPOSE:To improve output and torque as greately as possible, and reduce emission of smoke and carbon monoxide, etc., by providing a combustion chamber formed with a projection at a bored portion on a top surface of a piston, and forming an inclined surface on a lower end surface of a cylinder head. CONSTITUTION:A cavity-like combustion chamber 3 is formed on a top surface of a piston 1, and a projection 5 is formed at a substantially central portion of a botom 4. A squish deflector 10 is formed with an annular projection 11 at a periphery of a lower end portion thereof, and the annular projection 11 is formed with an inclined surface 12 at a lower end thereof. A squish collides with the annular projection 11 and flows along the inclined surface 12 into the combustion chamber 3. Subsequently, the squish rises from the bottom 4 and along an inner side wall 14 to form a convection. Further, a vertical component of the squish and a horizontal component of a swirl are combined with each other in the combustion chamber 3 to form a steric toroidal flow. Thusly, it is possible to improve output and torque as greatly as possible.
摘要翻译：目的：通过提供在活塞顶表面上的钻孔部分形成有凸起的燃烧室，并且形成倾斜表面，以尽可能地提高输出和扭矩，并且减少烟雾和一氧化碳等的排放在气缸盖的下端面上。构成：在活塞1的顶面上形成有空腔状的燃烧室3，突起部5形成在火腿4的大致中央部。挤出偏转器10在周边形成有环状突起11 的下端部，并且环状突起11在其下端形成有倾斜面12。挤压与环形突起11碰撞，并且沿着倾斜表面12流入燃烧室3.随后，挤压从底部4和内侧壁14上升以形成对流。此外，在燃烧室3中将挤压的垂直分量和涡流的水平分量彼此组合以形成空间环形流。因此，可以尽可能大地提高输出和扭矩。

7. 发明专利

JPS5979031A Direct-injection type diesel engine 失效
标题翻译：直喷式柴油发动机
公开(公告)号：JPS5979031A
公开(公告)日：1984-05-08
申请号：JP18923382
申请日：1982-10-29
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02B3/06 , F02B23/06 , F02F1/24 , F02M61/14
CPC分类号： F02B23/0669 , F02B3/06 , F02B23/0621 , F02B23/0654 , F02B23/0672 , F02B2275/14 , F02F2001/247 , Y02T10/125
摘要： PURPOSE:To enable to lower the compression ratio of a diesel engine and to raise the brake mean effective pressure of the engine, by promoting vaporization of fuel by forming a combustion chamber in a recess formed in the top surface of a piston, and disposing a heater above the upper end surface. CONSTITUTION:A combustion chamber 4 is formed by forming a recess in the top surface 2 of a piston 1 and forming a projection at the central part on the bottom surface of said recess. Upwardly of the projection 3, an injection nozzle 6 is disposed to face the projection 3. A nozzle tip 8 has main injection holes 9 and a subsidiary injection hole 11 so as to inject fuel toward the side wall 7 of the combustion chamber 4. Further, an electric heater or the like serving as a heat source is disposed above the top surface 10 of the projection in the vicinity of the same so as to promote atomization of fuel drops scattered from the nozzle. With such an arrangement, it is enabled to lower the compression ratio of a diesel engine and to raise its shaft mean effective pressure.
摘要翻译：目的：为了降低柴油发动机的压缩比并提高发动机的制动平均有效压力，通过在形成于活塞顶面的凹部中形成燃烧室来促进燃料蒸发，加热器在上端表面上方。构成：通过在活塞1的顶面2上形成凹部并在所述凹部的底面的中央部形成突起来形成燃烧室4。在突出部3的上方，配置有与喷嘴3相对的喷嘴6.喷嘴头8具有主喷射孔9和辅助喷射孔11，以向燃烧室4的侧壁7喷射燃料。作为热源的电加热器等设置在突起的顶面10的上方附近，以促进从喷嘴散发的燃料滴的雾化。通过这样的布置，能够降低柴油发动机的压缩比并提高其轴平均有效压力。

8. 发明专利

JPS5979030A Direct-injection type diesel engine 失效
标题翻译：直喷式柴油发动机
公开(公告)号：JPS5979030A
公开(公告)日：1984-05-08
申请号：JP18923282
申请日：1982-10-29
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02B3/06 , F02B23/06 , F02F1/24 , F02M61/14
CPC分类号： F02B23/0669 , F02B3/06 , F02B23/0621 , F02B23/0624 , F02B23/0672 , F02B2275/14 , F02F2001/247 , Y02T10/125
摘要： PURPOSE:To reduce generation of noises due to ignition lag, by forming a combustion chamber by forming a recess in the top surface of a piston and forming a projection at the central part of the bottom surface of said recess. CONSTITUTION:A combustion chamber 4 is formed by forming a recess in the top surface 2 of a piston 1 and forming a projection 3 by projecting the central part of the bottom surface of said recess upward. When fuel is injected to the combustion chamber 4, atomized fuel is mixed with compressed air by the function of swirl produced in the combustion chamber 4, and fuel is ejected onto the top surface 10 of the projection 3 from an injection hole 11. Here, since the top surface 10 of the projection 3 is located at a fairly small distance from the subsidiary injection hole 11, fuel is ejected onto the top surface 10 at a high speed, so that fuel is scattered after collision onto the top surface 10 and atomized instantaneously. During the above while, the piston 1 is raised to a position corresponding to a crank angle C, and the pressure in the cylinder is raised and the temperature of compressed air is raised to the ignition temperature. Thus, since the time lag T1 is lessened, it is enabled to reduce noises.
摘要翻译：目的：为了减少因点燃滞后而产生的噪音，通过在活塞的顶面形成凹部形成燃烧室，并在所述凹部的底面的中央部形成突起。构成：通过在活塞1的顶面2上形成凹部而形成燃烧室4，通过向上突出上述凹部的底面的中央部而形成突起3。当燃料喷射到燃烧室4时，雾化的燃料通过在燃烧室4中产生的漩涡的作用与压缩空气混合，并且燃料从喷射孔11喷射到突起3的顶表面10上。这里，由于突起3的顶面10与辅助喷射孔11的距离相当小，所以燃料高速喷射到顶面10上，因此在碰撞后燃料在顶面10上被散射并雾化瞬间。在上述的同时，将活塞1升高到与曲柄角C对应的位置，使气缸内的压力上升，压缩空气的温度上升到点火温度。因此，由于减小了时间延迟T1，所以能够减少噪声。

9. 发明专利

JPS58190568A Fuel injection nozzle 失效
标题翻译：燃油喷射喷嘴
公开(公告)号：JPS58190568A
公开(公告)日：1983-11-07
申请号：JP7280282
申请日：1982-04-30
申请人： Isuzu Motors Ltd
发明人： ISHIDA SHIROU
IPC分类号： F02M61/18
CPC分类号： F02M61/182
摘要： PURPOSE:To perform good mixing of atomized fuel with air, by drilling plural injection holes separated by a prescribed distance to the point end part of a nozzle main unit and tilting each injection nozzle at a prescribed angle respectively for an axial line of the nozzle main unit and the forward flow direction of fuel. CONSTITUTION:A fuel injection nozzle N is constructed by forming an internal surface in the point end part of its main unit 1 to a tapered face 2 and said nozzle N can be opened and closed by separably contacting the point end part of a needle 3 to this face 2. Then plural injection holes 4, 5 are approximately provided at a position in which a sloped surface of the needle 3 is separably contacted. While jetting parts of each hole 4, 5 are separatebly placed by a distance delta further tilted at an angle alpha with respect to the center of an axial line of the unit 1, and each hole 4, 5 is formed so as to be spread as viewed from the side by an angle beta in the forward flow direction of fuel. In this way, each atomized fuel 4a, 5a is dispersed in a combustion chamber 8 and spread for a swirl S to improve mixing of the fuel 4a, 5a with air.
摘要翻译：目的：为了将雾化燃料与空气进行良好的混合，通过对喷嘴主体的点端部分开一定距离的多个注入孔，并分别以喷嘴主体的轴线倾斜每个喷嘴，单位和燃料的向前流动方向。构成：燃料喷射喷嘴N通过在其主单元1的点端部中形成内表面而形成为锥面2，并且可以通过将针3的点端部分离地接触而打开和关闭喷嘴此时，多个喷射孔4,5大致设置在针3的倾斜面可分离接触的位置。在每个孔4,5的喷射部分分开地相对于单元1的轴线的中心以相对于角α成一定角度的位置分开放置，并且每个孔4,5形成为以从燃料的正向流动方向观察角度β。以这种方式，每个雾化的燃料4a，5a分散在燃烧室8中，并扩展为涡流S，以改善燃料4a，5a与空气的混合。

10. 发明专利

JPS59221421A DIRECT INJECTION TYPE DIESEL ENGINE 失效
公开(公告)号：JPS59221421A
公开(公告)日：1984-12-13
申请号：JP9403583
申请日：1983-05-30
申请人： ISUZU MOTORS LTD
发明人： ISHIDA SHIROU
IPC分类号： F02B15/00 , F02B3/06 , F02B23/06 , F02M61/18
摘要： PURPOSE:To contrive a drastic reduction of a noise and a vibration at the time of idling, by controlling a pressure rise in the inside of a cylinder low by preventing an ignition lag at the time of a low speed and a low load during idling, in a direct injection type Diesel engine. CONSTITUTION:A combustion chamber 4 is formed on a piston head 3 fronting on a cylinder head 2. A preheating fuel injection port 8 to be obtained by branching a nozzle hole 6 is provided on an injection nozzle 5, and a fuel storing chamber 9 for receiving atomized fuel (f) to be injected from the preheating injection port 8 and storing the same in a liquidized state is provided in the combustion chamber 4. At the time of a low load during idling, a needle valve 7 is reciprocated and fuel for a cycle is injected from the nozzle hole 6 and the fuel injection port 8. The atomized fuel (f) to be injected from the fuel injection port 8 fronting on the fuel storing chamber 9 is received within the fuel storing chamber 9, which is stored in an atomized state without being used for combustion of the cycle at the time of injection. The fuel (f) is vaporized at the next compression stroke, streamed out into the combustion chamber 4, burnt, and contributed to a temperature rise of the inside of the chamber 4 through which ignition lag is prevented.

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